fix(cjs-module-analyzer): Minimal changes to passing lint and tsc
MODIFY
packages/lexer/src/lexer.js
packages/lexer/src/lexer.js
-// Forked from https://github.com/guybedford/cjs-module-lexer/blob/dd3d34344f6272222ec2f9f28cf9c0533f72c115/lexer.js
+// @ts-check
+/* eslint no-bitwise: ["off"] */
+/* eslint no-plusplus: ["off"] */
+/* eslint no-use-before-define: ["off"] */
+/* eslint no-shadow: ["off"] */
+/* eslint camelcase: ["off"] */
+/* eslint default-case: ["off"] */
+/* eslint no-multi-assign: ["off"] */
+/* eslint no-cond-assign: ["off"] */
+/* eslint no-continue: ["off"] */
+/* eslint no-case-declarations: ["off"] */
let source;
let pos;
@@ -15,7 +25,7 @@ let nextBraceIsClass;
let starExportMap;
let lastStarExportSpecifier;
let lastExportsAssignSpecifier;
-let _exports;
+let myexports;
let reexports;
let requires;
@@ -33,12 +43,12 @@ function resetState() {
lastStarExportSpecifier = null;
lastExportsAssignSpecifier = null;
- _exports = new Set();
+ myexports = new Set();
reexports = new Set();
requires = [];
}
-// RequireType
+/** @typedef {0 | 1 | 2} RequireType */
const Import = 0;
const ExportAssign = 1;
const ExportStar = 2;
@@ -56,7 +66,11 @@ const strictReserved = new Set([
'enum',
]);
-module.exports = function parseCJS(source, name = '@') {
+/**
+ * @param {string} source
+ * @param {string} [name]
+ */
+export function parseCJS(source, name = '@') {
resetState();
try {
parseSource(source);
@@ -67,20 +81,28 @@ module.exports = function parseCJS(source, name = '@') {
e.loc = pos;
throw e;
}
- if (lastExportsAssignSpecifier) reexports.add(lastExportsAssignSpecifier);
+ if (lastExportsAssignSpecifier) {
+ reexports.add(lastExportsAssignSpecifier);
+ }
const result = {
- exports: [..._exports],
+ exports: [...myexports],
reexports: [...reexports],
requires,
};
resetState();
return result;
-};
+}
+/**
+ * @param {string} name
+ */
function addExport(name) {
- if (!strictReserved.has(name)) _exports.add(name);
+ if (!strictReserved.has(name)) myexports.add(name);
}
+/**
+ * @param {string} cjsSource
+ */
function parseSource(cjsSource) {
source = cjsSource;
pos = -1;
@@ -92,7 +114,7 @@ function parseSource(cjsSource) {
source.charCodeAt(0) === 35 /* # */ &&
source.charCodeAt(1) === 33 /*!*/
) {
- if (source.length === 2) return true;
+ if (source.length === 2) return;
pos += 2;
while (pos++ < end) {
ch = source.charCodeAt(pos);
@@ -256,6 +278,9 @@ function parseSource(cjsSource) {
if (openTokenDepth) throw new Error('Unterminated braces.');
}
+/**
+ * @param {number} bPos
+ */
function tryBacktrackAddStarExportBinding(bPos) {
while (source.charCodeAt(bPos) === 32 /* */ && bPos >= 0) bPos--;
if (source.charCodeAt(bPos) === 61 /*=*/) {
@@ -292,6 +317,9 @@ function tryBacktrackAddStarExportBinding(bPos) {
}
}
+/**
+ * @param {boolean} keys
+ */
function tryParseObjectDefineOrKeys(keys) {
pos += 6;
let revertPos = pos - 1;
@@ -328,7 +356,7 @@ function tryParseObjectDefineOrKeys(keys) {
ch === 107 /* k */ &&
source.startsWith('eys', pos + 1)
) {
- while (true) {
+ for (;;) {
pos += 4;
revertPos = pos - 1;
ch = commentWhitespace();
@@ -584,6 +612,9 @@ function tryParseObjectDefineOrKeys(keys) {
pos = revertPos;
}
+/**
+ * @param {number} ch
+ */
function readExportsOrModuleDotExports(ch) {
const revertPos = pos;
if (ch === 109 /* m */ && source.startsWith('odule', pos + 1)) {
@@ -620,6 +651,9 @@ function tryParseModuleExportsDotAssign() {
pos = revertPos;
}
+/**
+ * @param {boolean} assign
+ */
function tryParseExportsDotAssign(assign) {
pos += 7;
const revertPos = pos - 1;
@@ -678,6 +712,9 @@ function tryParseExportsDotAssign(assign) {
pos = revertPos;
}
+/**
+ * @param {RequireType} requireType
+ */
function tryParseRequire(requireType) {
// require('...')
if (source.startsWith('equire', pos + 1)) {
@@ -825,8 +862,10 @@ function tryParseLiteralExports() {
// are only applied when a character is found to actually have a
// code point above 128.
// Generated by `bin/generate-identifier-regex.js`.
+/** @type {string | undefined} */
let nonASCIIidentifierStartChars =
'\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08c7\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\u9ffc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7bf\ua7c2-\ua7ca\ua7f5-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc';
+/** @type {string | undefined} */
let nonASCIIidentifierChars =
'\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf\u1ac0\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f';
@@ -835,7 +874,7 @@ const nonASCIIidentifier = new RegExp(
`[${nonASCIIidentifierStartChars}${nonASCIIidentifierChars}]`,
);
-nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = undefined;
// These are a run-length and offset encoded representation of the
// >0xffff code points that are a valid part of identifiers. The
@@ -1592,6 +1631,10 @@ const astralIdentifierCodes = [
// This has a complexity linear to the value of the code. The
// assumption is that looking up astral identifier characters is
// rare.
+/**
+ * @param {number} code
+ * @param {Array<number>} set
+ */
function isInAstralSet(code, set) {
let pos = 0x10000;
for (let i = 0; i < set.length; i += 2) {
@@ -1600,10 +1643,15 @@ function isInAstralSet(code, set) {
pos += set[i + 1];
if (pos >= code) return true;
}
+ return false;
}
// Test whether a given character code starts an identifier.
+/**
+ * @param {number} code
+ * @param {boolean} astral
+ */
function isIdentifierStart(code, astral) {
if (code < 65) return code === 36;
if (code < 91) return true;
@@ -1619,6 +1667,10 @@ function isIdentifierStart(code, astral) {
// Test whether a given character is part of an identifier.
+/**
+ * @param {number} code
+ * @param {boolean} astral
+ */
function isIdentifierChar(code, astral) {
if (code < 48) return code === 36;
if (code < 58) return true;
@@ -1652,11 +1704,17 @@ function identifier() {
return true;
}
+/**
+ * @param {number} ch
+ */
function codePointLen(ch) {
if (ch < 0x10000) return 1;
return 2;
}
+/**
+ * @param {number} bPos
+ */
function codePointAtLast(bPos) {
// Gives the UTF char for backtracking surrogates
const ch = source.charCodeAt(bPos);
@@ -1679,11 +1737,11 @@ function throwIfImportStatement() {
// import.meta
case 46 /* . */:
throw new Error('Unexpected import.meta in CJS module.');
- return;
default:
// no space after "import" -> not an import keyword
if (pos === startPos + 6) break;
+ // eslint-disable-next-line no-fallthrough
case 34 /* " */:
case 39 /* ' */:
case 123 /* { */:
@@ -1734,7 +1792,7 @@ function templateString() {
if (ch === 96 /* ` */) return;
if (ch === 92 /* \ */) pos++;
}
- syntaxError();
+ throw new SyntaxError('Unexpected EOF in template string');
}
function blockComment() {
@@ -1804,14 +1862,23 @@ function regularExpression() {
// Note: non-asii BR and whitespace checks omitted for perf / footprint
// if there is a significant user need this can be reconsidered
+/**
+ * @param {number} c
+ */
function isBr(c) {
return c === 13 /* \r */ || c === 10 /* \n */;
}
+/**
+ * @param {number} c
+ */
function isBrOrWs(c) {
return (c > 8 && c < 14) || c === 32 || c === 160;
}
+/**
+ * @param {number} c
+ */
function isBrOrWsOrPunctuatorNotDot(c) {
return (
(c > 8 && c < 14) ||
@@ -1821,10 +1888,17 @@ function isBrOrWsOrPunctuatorNotDot(c) {
);
}
+/**
+ * @param {number} pos
+ */
function keywordStart(pos) {
return pos === 0 || isBrOrWsOrPunctuatorNotDot(source.charCodeAt(pos - 1));
}
+/**
+ * @param {number} pos
+ * @param {string} match
+ */
function readPrecedingKeyword(pos, match) {
if (pos < match.length - 1) return false;
return (
@@ -1834,6 +1908,10 @@ function readPrecedingKeyword(pos, match) {
);
}
+/**
+ * @param {number} pos
+ * @param {number} ch
+ */
function readPrecedingKeyword1(pos, ch) {
return (
source.charCodeAt(pos) === ch &&
@@ -1843,6 +1921,7 @@ function readPrecedingKeyword1(pos, ch) {
// Detects one of case, debugger, delete, do, else, in, instanceof, new,
// return, throw, typeof, void, yield, await
+/** @param {number} pos */
function isExpressionKeyword(pos) {
switch (source.charCodeAt(pos)) {
case 100 /* d */:
@@ -1921,6 +2000,7 @@ function isExpressionKeyword(pos) {
return false;
}
+/** @param {number} curPos */
function isParenKeyword(curPos) {
return (
(source.charCodeAt(curPos) === 101 /* e */ &&
@@ -1932,6 +2012,7 @@ function isParenKeyword(curPos) {
);
}
+/** @param {number} ch */
function isPunctuator(ch) {
// 23 possible punctuator endings: !%&()*+,-./:;<=>?[]^{}|~
return (
@@ -1947,6 +2028,7 @@ function isPunctuator(ch) {
);
}
+/** @param {number} ch */
function isExpressionPunctuator(ch) {
// 20 possible expression endings: !%&(*+,-.:;<=>?[^{|~
return (
@@ -1961,6 +2043,7 @@ function isExpressionPunctuator(ch) {
);
}
+/** @param {number} curPos */
function isExpressionTerminator(curPos) {
// detects:
// => ; ) finally catch else

fix(cjs-module-analyzer): Minimal changes to passing lint and tsc