Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- TokenERC20
- Optimization enabled
- true
- Compiler version
- v0.8.12+commit.f00d7308
- Optimization runs
- 20
- EVM Version
- london
- Verified at
- 2024-09-18T06:28:51.276040Z
contracts/token/TokenERC20.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.11; /// @author thirdweb // $$\ $$\ $$\ $$\ $$\ // $$ | $$ | \__| $$ | $$ | // $$$$$$\ $$$$$$$\ $$\ $$$$$$\ $$$$$$$ |$$\ $$\ $$\ $$$$$$\ $$$$$$$\ // \_$$ _| $$ __$$\ $$ |$$ __$$\ $$ __$$ |$$ | $$ | $$ |$$ __$$\ $$ __$$\ // $$ | $$ | $$ |$$ |$$ | \__|$$ / $$ |$$ | $$ | $$ |$$$$$$$$ |$$ | $$ | // $$ |$$\ $$ | $$ |$$ |$$ | $$ | $$ |$$ | $$ | $$ |$$ ____|$$ | $$ | // \$$$$ |$$ | $$ |$$ |$$ | \$$$$$$$ |\$$$$$\$$$$ |\$$$$$$$\ $$$$$$$ | // \____/ \__| \__|\__|\__| \_______| \_____\____/ \_______|\_______/ //Interface import { ITokenERC20 } from "../interfaces/token/ITokenERC20.sol"; import "../interfaces/IThirdwebContract.sol"; import "../extension/interface/IPlatformFee.sol"; import "../extension/interface/IPrimarySale.sol"; // Token import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20BurnableUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20VotesUpgradeable.sol"; // Security import "@openzeppelin/contracts-upgradeable/access/AccessControlEnumerableUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol"; // Signature utils import "@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/cryptography/draft-EIP712Upgradeable.sol"; // Meta transactions import "../openzeppelin-presets/metatx/ERC2771ContextUpgradeable.sol"; // Utils import "@openzeppelin/contracts-upgradeable/utils/MulticallUpgradeable.sol"; import "../lib/CurrencyTransferLib.sol"; import "../lib/FeeType.sol"; contract TokenERC20 is Initializable, IThirdwebContract, IPrimarySale, IPlatformFee, ReentrancyGuardUpgradeable, ERC2771ContextUpgradeable, MulticallUpgradeable, ERC20BurnableUpgradeable, ERC20VotesUpgradeable, ITokenERC20, AccessControlEnumerableUpgradeable { using ECDSAUpgradeable for bytes32; bytes32 private constant MODULE_TYPE = bytes32("TokenERC20"); uint256 private constant VERSION = 1; bytes32 private constant TYPEHASH = keccak256( "MintRequest(address to,address primarySaleRecipient,uint256 quantity,uint256 price,address currency,uint128 validityStartTimestamp,uint128 validityEndTimestamp,bytes32 uid)" ); bytes32 internal constant MINTER_ROLE = keccak256("MINTER_ROLE"); bytes32 internal constant TRANSFER_ROLE = keccak256("TRANSFER_ROLE"); /// @dev Returns the URI for the storefront-level metadata of the contract. string public contractURI; /// @dev Max bps in the thirdweb system uint128 internal constant MAX_BPS = 10_000; /// @dev The % of primary sales collected by the contract as fees. uint128 private platformFeeBps; /// @dev The adress that receives all primary sales value. address internal platformFeeRecipient; /// @dev The adress that receives all primary sales value. address public primarySaleRecipient; /// @dev Mapping from mint request UID => whether the mint request is processed. mapping(bytes32 => bool) private minted; constructor() initializer {} /// @dev Initiliazes the contract, like a constructor. function initialize( address _defaultAdmin, string memory _name, string memory _symbol, string memory _contractURI, address[] memory _trustedForwarders, address _primarySaleRecipient, address _platformFeeRecipient, uint256 _platformFeeBps ) external initializer { __ReentrancyGuard_init(); __ERC2771Context_init_unchained(_trustedForwarders); __ERC20Permit_init(_name); __ERC20_init_unchained(_name, _symbol); contractURI = _contractURI; primarySaleRecipient = _primarySaleRecipient; platformFeeRecipient = _platformFeeRecipient; require(_platformFeeBps <= MAX_BPS, "exceeds MAX_BPS"); platformFeeBps = uint128(_platformFeeBps); _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin); _setupRole(TRANSFER_ROLE, _defaultAdmin); _setupRole(MINTER_ROLE, _defaultAdmin); _setupRole(TRANSFER_ROLE, address(0)); } /// @dev Returns the module type of the contract. function contractType() external pure virtual returns (bytes32) { return MODULE_TYPE; } /// @dev Returns the version of the contract. function contractVersion() external pure virtual returns (uint8) { return uint8(VERSION); } function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual override(ERC20Upgradeable, ERC20VotesUpgradeable) { super._afterTokenTransfer(from, to, amount); } /// @dev Runs on every transfer. function _beforeTokenTransfer( address from, address to, uint256 amount ) internal override { super._beforeTokenTransfer(from, to, amount); if (!hasRole(TRANSFER_ROLE, address(0)) && from != address(0) && to != address(0)) { require(hasRole(TRANSFER_ROLE, from) || hasRole(TRANSFER_ROLE, to), "transfers restricted."); } } function _mint(address account, uint256 amount) internal virtual override(ERC20Upgradeable, ERC20VotesUpgradeable) { super._mint(account, amount); } function _burn(address account, uint256 amount) internal virtual override(ERC20Upgradeable, ERC20VotesUpgradeable) { super._burn(account, amount); } /** * @dev Creates `amount` new tokens for `to`. * * See {ERC20-_mint}. * * Requirements: * * - the caller must have the `MINTER_ROLE`. */ function mintTo(address to, uint256 amount) public virtual { require(hasRole(MINTER_ROLE, _msgSender()), "not minter."); _mintTo(to, amount); } /// @dev Verifies that a mint request is signed by an account holding MINTER_ROLE (at the time of the function call). function verify(MintRequest calldata _req, bytes calldata _signature) public view returns (bool, address) { address signer = recoverAddress(_req, _signature); return (!minted[_req.uid] && hasRole(MINTER_ROLE, signer), signer); } /// @dev Mints tokens according to the provided mint request. function mintWithSignature(MintRequest calldata _req, bytes calldata _signature) external payable nonReentrant { address signer = verifyRequest(_req, _signature); address receiver = _req.to; collectPrice(_req); _mintTo(receiver, _req.quantity); emit TokensMintedWithSignature(signer, receiver, _req); } /// @dev Lets a module admin set the default recipient of all primary sales. function setPrimarySaleRecipient(address _saleRecipient) external onlyRole(DEFAULT_ADMIN_ROLE) { primarySaleRecipient = _saleRecipient; emit PrimarySaleRecipientUpdated(_saleRecipient); } /// @dev Lets a module admin update the fees on primary sales. function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external onlyRole(DEFAULT_ADMIN_ROLE) { require(_platformFeeBps <= MAX_BPS, "exceeds MAX_BPS"); platformFeeBps = uint64(_platformFeeBps); platformFeeRecipient = _platformFeeRecipient; emit PlatformFeeInfoUpdated(_platformFeeRecipient, _platformFeeBps); } /// @dev Returns the platform fee bps and recipient. function getPlatformFeeInfo() external view returns (address, uint16) { return (platformFeeRecipient, uint16(platformFeeBps)); } /// @dev Collects and distributes the primary sale value of tokens being claimed. function collectPrice(MintRequest calldata _req) internal { if (_req.price == 0) { require(msg.value == 0, "!Value"); return; } uint256 platformFees = (_req.price * platformFeeBps) / MAX_BPS; if (_req.currency == CurrencyTransferLib.NATIVE_TOKEN) { require(msg.value == _req.price, "must send total price."); } else { require(msg.value == 0, "msg value not zero"); } address saleRecipient = _req.primarySaleRecipient == address(0) ? primarySaleRecipient : _req.primarySaleRecipient; CurrencyTransferLib.transferCurrency(_req.currency, _msgSender(), platformFeeRecipient, platformFees); CurrencyTransferLib.transferCurrency(_req.currency, _msgSender(), saleRecipient, _req.price - platformFees); } /// @dev Mints `amount` of tokens to `to` function _mintTo(address _to, uint256 _amount) internal { _mint(_to, _amount); emit TokensMinted(_to, _amount); } /// @dev Verifies that a mint request is valid. function verifyRequest(MintRequest calldata _req, bytes calldata _signature) internal returns (address) { (bool success, address signer) = verify(_req, _signature); require(success, "invalid signature"); require( _req.validityStartTimestamp <= block.timestamp && _req.validityEndTimestamp >= block.timestamp, "request expired" ); require(_req.to != address(0), "recipient undefined"); require(_req.quantity > 0, "zero quantity"); minted[_req.uid] = true; return signer; } /// @dev Returns the address of the signer of the mint request. function recoverAddress(MintRequest calldata _req, bytes calldata _signature) internal view returns (address) { return _hashTypedDataV4(keccak256(_encodeRequest(_req))).recover(_signature); } /// @dev Resolves 'stack too deep' error in `recoverAddress`. function _encodeRequest(MintRequest calldata _req) internal pure returns (bytes memory) { return abi.encode( TYPEHASH, _req.to, _req.primarySaleRecipient, _req.quantity, _req.price, _req.currency, _req.validityStartTimestamp, _req.validityEndTimestamp, _req.uid ); } /// @dev Sets contract URI for the storefront-level metadata of the contract. function setContractURI(string calldata _uri) external onlyRole(DEFAULT_ADMIN_ROLE) { contractURI = _uri; } function _msgSender() internal view virtual override(ContextUpgradeable, ERC2771ContextUpgradeable) returns (address sender) { return ERC2771ContextUpgradeable._msgSender(); } function _msgData() internal view virtual override(ContextUpgradeable, ERC2771ContextUpgradeable) returns (bytes calldata) { return ERC2771ContextUpgradeable._msgData(); } }
contracts/interfaces/IThirdwebContract.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.11; interface IThirdwebContract { /// @dev Returns the module type of the contract. function contractType() external pure returns (bytes32); /// @dev Returns the version of the contract. function contractVersion() external pure returns (uint8); /// @dev Returns the metadata URI of the contract. function contractURI() external view returns (string memory); /** * @dev Sets contract URI for the storefront-level metadata of the contract. * Only module admin can call this function. */ function setContractURI(string calldata _uri) external; }
lib/openzeppelin-contracts-upgradeable/contracts/utils/cryptography/ECDSAUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.3) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../StringsUpgradeable.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSAUpgradeable { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } else if (error == RecoverError.InvalidSignatureV) { revert("ECDSA: invalid signature 'v' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } if (v != 27 && v != 28) { return (address(0), RecoverError.InvalidSignatureV); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", StringsUpgradeable.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/IERC20MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20Upgradeable.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20MetadataUpgradeable is IERC20Upgradeable { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
lib/openzeppelin-contracts-upgradeable/contracts/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library MathUpgradeable { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. It the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. // We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`. // This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`. // Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a // good first aproximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1; uint256 x = a; if (x >> 128 > 0) { x >>= 128; result <<= 64; } if (x >> 64 > 0) { x >>= 64; result <<= 32; } if (x >> 32 > 0) { x >>= 32; result <<= 16; } if (x >> 16 > 0) { x >>= 16; result <<= 8; } if (x >> 8 > 0) { x >>= 8; result <<= 4; } if (x >> 4 > 0) { x >>= 4; result <<= 2; } if (x >> 2 > 0) { result <<= 1; } // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { uint256 result = sqrt(a); if (rounding == Rounding.Up && result * result < a) { result += 1; } return result; } }
lib/openzeppelin-contracts-upgradeable/contracts/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
lib/openzeppelin-contracts-upgradeable/contracts/utils/cryptography/draft-EIP712Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/cryptography/draft-EIP712.sol) pragma solidity ^0.8.0; import "./ECDSAUpgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible, * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding * they need in their contracts using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * _Available since v3.4._ * * @custom:storage-size 52 */ abstract contract EIP712Upgradeable is Initializable { /* solhint-disable var-name-mixedcase */ bytes32 private _HASHED_NAME; bytes32 private _HASHED_VERSION; bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); /* solhint-enable var-name-mixedcase */ /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ function __EIP712_init(string memory name, string memory version) internal onlyInitializing { __EIP712_init_unchained(name, version); } function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing { bytes32 hashedName = keccak256(bytes(name)); bytes32 hashedVersion = keccak256(bytes(version)); _HASHED_NAME = hashedName; _HASHED_VERSION = hashedVersion; } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash()); } function _buildDomainSeparator( bytes32 typeHash, bytes32 nameHash, bytes32 versionHash ) private view returns (bytes32) { return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash); } /** * @dev The hash of the name parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712NameHash() internal virtual view returns (bytes32) { return _HASHED_NAME; } /** * @dev The hash of the version parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712VersionHash() internal virtual view returns (bytes32) { return _HASHED_VERSION; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/utils/math/SafeCastUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/math/SafeCast.sol) pragma solidity ^0.8.0; /** * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. * * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing * all math on `uint256` and `int256` and then downcasting. */ library SafeCastUpgradeable { /** * @dev Returns the downcasted uint248 from uint256, reverting on * overflow (when the input is greater than largest uint248). * * Counterpart to Solidity's `uint248` operator. * * Requirements: * * - input must fit into 248 bits * * _Available since v4.7._ */ function toUint248(uint256 value) internal pure returns (uint248) { require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits"); return uint248(value); } /** * @dev Returns the downcasted uint240 from uint256, reverting on * overflow (when the input is greater than largest uint240). * * Counterpart to Solidity's `uint240` operator. * * Requirements: * * - input must fit into 240 bits * * _Available since v4.7._ */ function toUint240(uint256 value) internal pure returns (uint240) { require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits"); return uint240(value); } /** * @dev Returns the downcasted uint232 from uint256, reverting on * overflow (when the input is greater than largest uint232). * * Counterpart to Solidity's `uint232` operator. * * Requirements: * * - input must fit into 232 bits * * _Available since v4.7._ */ function toUint232(uint256 value) internal pure returns (uint232) { require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits"); return uint232(value); } /** * @dev Returns the downcasted uint224 from uint256, reverting on * overflow (when the input is greater than largest uint224). * * Counterpart to Solidity's `uint224` operator. * * Requirements: * * - input must fit into 224 bits * * _Available since v4.2._ */ function toUint224(uint256 value) internal pure returns (uint224) { require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits"); return uint224(value); } /** * @dev Returns the downcasted uint216 from uint256, reverting on * overflow (when the input is greater than largest uint216). * * Counterpart to Solidity's `uint216` operator. * * Requirements: * * - input must fit into 216 bits * * _Available since v4.7._ */ function toUint216(uint256 value) internal pure returns (uint216) { require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits"); return uint216(value); } /** * @dev Returns the downcasted uint208 from uint256, reverting on * overflow (when the input is greater than largest uint208). * * Counterpart to Solidity's `uint208` operator. * * Requirements: * * - input must fit into 208 bits * * _Available since v4.7._ */ function toUint208(uint256 value) internal pure returns (uint208) { require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits"); return uint208(value); } /** * @dev Returns the downcasted uint200 from uint256, reverting on * overflow (when the input is greater than largest uint200). * * Counterpart to Solidity's `uint200` operator. * * Requirements: * * - input must fit into 200 bits * * _Available since v4.7._ */ function toUint200(uint256 value) internal pure returns (uint200) { require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits"); return uint200(value); } /** * @dev Returns the downcasted uint192 from uint256, reverting on * overflow (when the input is greater than largest uint192). * * Counterpart to Solidity's `uint192` operator. * * Requirements: * * - input must fit into 192 bits * * _Available since v4.7._ */ function toUint192(uint256 value) internal pure returns (uint192) { require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits"); return uint192(value); } /** * @dev Returns the downcasted uint184 from uint256, reverting on * overflow (when the input is greater than largest uint184). * * Counterpart to Solidity's `uint184` operator. * * Requirements: * * - input must fit into 184 bits * * _Available since v4.7._ */ function toUint184(uint256 value) internal pure returns (uint184) { require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits"); return uint184(value); } /** * @dev Returns the downcasted uint176 from uint256, reverting on * overflow (when the input is greater than largest uint176). * * Counterpart to Solidity's `uint176` operator. * * Requirements: * * - input must fit into 176 bits * * _Available since v4.7._ */ function toUint176(uint256 value) internal pure returns (uint176) { require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits"); return uint176(value); } /** * @dev Returns the downcasted uint168 from uint256, reverting on * overflow (when the input is greater than largest uint168). * * Counterpart to Solidity's `uint168` operator. * * Requirements: * * - input must fit into 168 bits * * _Available since v4.7._ */ function toUint168(uint256 value) internal pure returns (uint168) { require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits"); return uint168(value); } /** * @dev Returns the downcasted uint160 from uint256, reverting on * overflow (when the input is greater than largest uint160). * * Counterpart to Solidity's `uint160` operator. * * Requirements: * * - input must fit into 160 bits * * _Available since v4.7._ */ function toUint160(uint256 value) internal pure returns (uint160) { require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits"); return uint160(value); } /** * @dev Returns the downcasted uint152 from uint256, reverting on * overflow (when the input is greater than largest uint152). * * Counterpart to Solidity's `uint152` operator. * * Requirements: * * - input must fit into 152 bits * * _Available since v4.7._ */ function toUint152(uint256 value) internal pure returns (uint152) { require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits"); return uint152(value); } /** * @dev Returns the downcasted uint144 from uint256, reverting on * overflow (when the input is greater than largest uint144). * * Counterpart to Solidity's `uint144` operator. * * Requirements: * * - input must fit into 144 bits * * _Available since v4.7._ */ function toUint144(uint256 value) internal pure returns (uint144) { require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits"); return uint144(value); } /** * @dev Returns the downcasted uint136 from uint256, reverting on * overflow (when the input is greater than largest uint136). * * Counterpart to Solidity's `uint136` operator. * * Requirements: * * - input must fit into 136 bits * * _Available since v4.7._ */ function toUint136(uint256 value) internal pure returns (uint136) { require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits"); return uint136(value); } /** * @dev Returns the downcasted uint128 from uint256, reverting on * overflow (when the input is greater than largest uint128). * * Counterpart to Solidity's `uint128` operator. * * Requirements: * * - input must fit into 128 bits * * _Available since v2.5._ */ function toUint128(uint256 value) internal pure returns (uint128) { require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits"); return uint128(value); } /** * @dev Returns the downcasted uint120 from uint256, reverting on * overflow (when the input is greater than largest uint120). * * Counterpart to Solidity's `uint120` operator. * * Requirements: * * - input must fit into 120 bits * * _Available since v4.7._ */ function toUint120(uint256 value) internal pure returns (uint120) { require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits"); return uint120(value); } /** * @dev Returns the downcasted uint112 from uint256, reverting on * overflow (when the input is greater than largest uint112). * * Counterpart to Solidity's `uint112` operator. * * Requirements: * * - input must fit into 112 bits * * _Available since v4.7._ */ function toUint112(uint256 value) internal pure returns (uint112) { require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits"); return uint112(value); } /** * @dev Returns the downcasted uint104 from uint256, reverting on * overflow (when the input is greater than largest uint104). * * Counterpart to Solidity's `uint104` operator. * * Requirements: * * - input must fit into 104 bits * * _Available since v4.7._ */ function toUint104(uint256 value) internal pure returns (uint104) { require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits"); return uint104(value); } /** * @dev Returns the downcasted uint96 from uint256, reverting on * overflow (when the input is greater than largest uint96). * * Counterpart to Solidity's `uint96` operator. * * Requirements: * * - input must fit into 96 bits * * _Available since v4.2._ */ function toUint96(uint256 value) internal pure returns (uint96) { require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits"); return uint96(value); } /** * @dev Returns the downcasted uint88 from uint256, reverting on * overflow (when the input is greater than largest uint88). * * Counterpart to Solidity's `uint88` operator. * * Requirements: * * - input must fit into 88 bits * * _Available since v4.7._ */ function toUint88(uint256 value) internal pure returns (uint88) { require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits"); return uint88(value); } /** * @dev Returns the downcasted uint80 from uint256, reverting on * overflow (when the input is greater than largest uint80). * * Counterpart to Solidity's `uint80` operator. * * Requirements: * * - input must fit into 80 bits * * _Available since v4.7._ */ function toUint80(uint256 value) internal pure returns (uint80) { require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits"); return uint80(value); } /** * @dev Returns the downcasted uint72 from uint256, reverting on * overflow (when the input is greater than largest uint72). * * Counterpart to Solidity's `uint72` operator. * * Requirements: * * - input must fit into 72 bits * * _Available since v4.7._ */ function toUint72(uint256 value) internal pure returns (uint72) { require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits"); return uint72(value); } /** * @dev Returns the downcasted uint64 from uint256, reverting on * overflow (when the input is greater than largest uint64). * * Counterpart to Solidity's `uint64` operator. * * Requirements: * * - input must fit into 64 bits * * _Available since v2.5._ */ function toUint64(uint256 value) internal pure returns (uint64) { require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits"); return uint64(value); } /** * @dev Returns the downcasted uint56 from uint256, reverting on * overflow (when the input is greater than largest uint56). * * Counterpart to Solidity's `uint56` operator. * * Requirements: * * - input must fit into 56 bits * * _Available since v4.7._ */ function toUint56(uint256 value) internal pure returns (uint56) { require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits"); return uint56(value); } /** * @dev Returns the downcasted uint48 from uint256, reverting on * overflow (when the input is greater than largest uint48). * * Counterpart to Solidity's `uint48` operator. * * Requirements: * * - input must fit into 48 bits * * _Available since v4.7._ */ function toUint48(uint256 value) internal pure returns (uint48) { require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits"); return uint48(value); } /** * @dev Returns the downcasted uint40 from uint256, reverting on * overflow (when the input is greater than largest uint40). * * Counterpart to Solidity's `uint40` operator. * * Requirements: * * - input must fit into 40 bits * * _Available since v4.7._ */ function toUint40(uint256 value) internal pure returns (uint40) { require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits"); return uint40(value); } /** * @dev Returns the downcasted uint32 from uint256, reverting on * overflow (when the input is greater than largest uint32). * * Counterpart to Solidity's `uint32` operator. * * Requirements: * * - input must fit into 32 bits * * _Available since v2.5._ */ function toUint32(uint256 value) internal pure returns (uint32) { require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits"); return uint32(value); } /** * @dev Returns the downcasted uint24 from uint256, reverting on * overflow (when the input is greater than largest uint24). * * Counterpart to Solidity's `uint24` operator. * * Requirements: * * - input must fit into 24 bits * * _Available since v4.7._ */ function toUint24(uint256 value) internal pure returns (uint24) { require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits"); return uint24(value); } /** * @dev Returns the downcasted uint16 from uint256, reverting on * overflow (when the input is greater than largest uint16). * * Counterpart to Solidity's `uint16` operator. * * Requirements: * * - input must fit into 16 bits * * _Available since v2.5._ */ function toUint16(uint256 value) internal pure returns (uint16) { require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits"); return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits * * _Available since v2.5._ */ function toUint8(uint256 value) internal pure returns (uint8) { require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits"); return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. * * _Available since v3.0._ */ function toUint256(int256 value) internal pure returns (uint256) { require(value >= 0, "SafeCast: value must be positive"); return uint256(value); } /** * @dev Returns the downcasted int248 from int256, reverting on * overflow (when the input is less than smallest int248 or * greater than largest int248). * * Counterpart to Solidity's `int248` operator. * * Requirements: * * - input must fit into 248 bits * * _Available since v4.7._ */ function toInt248(int256 value) internal pure returns (int248) { require(value >= type(int248).min && value <= type(int248).max, "SafeCast: value doesn't fit in 248 bits"); return int248(value); } /** * @dev Returns the downcasted int240 from int256, reverting on * overflow (when the input is less than smallest int240 or * greater than largest int240). * * Counterpart to Solidity's `int240` operator. * * Requirements: * * - input must fit into 240 bits * * _Available since v4.7._ */ function toInt240(int256 value) internal pure returns (int240) { require(value >= type(int240).min && value <= type(int240).max, "SafeCast: value doesn't fit in 240 bits"); return int240(value); } /** * @dev Returns the downcasted int232 from int256, reverting on * overflow (when the input is less than smallest int232 or * greater than largest int232). * * Counterpart to Solidity's `int232` operator. * * Requirements: * * - input must fit into 232 bits * * _Available since v4.7._ */ function toInt232(int256 value) internal pure returns (int232) { require(value >= type(int232).min && value <= type(int232).max, "SafeCast: value doesn't fit in 232 bits"); return int232(value); } /** * @dev Returns the downcasted int224 from int256, reverting on * overflow (when the input is less than smallest int224 or * greater than largest int224). * * Counterpart to Solidity's `int224` operator. * * Requirements: * * - input must fit into 224 bits * * _Available since v4.7._ */ function toInt224(int256 value) internal pure returns (int224) { require(value >= type(int224).min && value <= type(int224).max, "SafeCast: value doesn't fit in 224 bits"); return int224(value); } /** * @dev Returns the downcasted int216 from int256, reverting on * overflow (when the input is less than smallest int216 or * greater than largest int216). * * Counterpart to Solidity's `int216` operator. * * Requirements: * * - input must fit into 216 bits * * _Available since v4.7._ */ function toInt216(int256 value) internal pure returns (int216) { require(value >= type(int216).min && value <= type(int216).max, "SafeCast: value doesn't fit in 216 bits"); return int216(value); } /** * @dev Returns the downcasted int208 from int256, reverting on * overflow (when the input is less than smallest int208 or * greater than largest int208). * * Counterpart to Solidity's `int208` operator. * * Requirements: * * - input must fit into 208 bits * * _Available since v4.7._ */ function toInt208(int256 value) internal pure returns (int208) { require(value >= type(int208).min && value <= type(int208).max, "SafeCast: value doesn't fit in 208 bits"); return int208(value); } /** * @dev Returns the downcasted int200 from int256, reverting on * overflow (when the input is less than smallest int200 or * greater than largest int200). * * Counterpart to Solidity's `int200` operator. * * Requirements: * * - input must fit into 200 bits * * _Available since v4.7._ */ function toInt200(int256 value) internal pure returns (int200) { require(value >= type(int200).min && value <= type(int200).max, "SafeCast: value doesn't fit in 200 bits"); return int200(value); } /** * @dev Returns the downcasted int192 from int256, reverting on * overflow (when the input is less than smallest int192 or * greater than largest int192). * * Counterpart to Solidity's `int192` operator. * * Requirements: * * - input must fit into 192 bits * * _Available since v4.7._ */ function toInt192(int256 value) internal pure returns (int192) { require(value >= type(int192).min && value <= type(int192).max, "SafeCast: value doesn't fit in 192 bits"); return int192(value); } /** * @dev Returns the downcasted int184 from int256, reverting on * overflow (when the input is less than smallest int184 or * greater than largest int184). * * Counterpart to Solidity's `int184` operator. * * Requirements: * * - input must fit into 184 bits * * _Available since v4.7._ */ function toInt184(int256 value) internal pure returns (int184) { require(value >= type(int184).min && value <= type(int184).max, "SafeCast: value doesn't fit in 184 bits"); return int184(value); } /** * @dev Returns the downcasted int176 from int256, reverting on * overflow (when the input is less than smallest int176 or * greater than largest int176). * * Counterpart to Solidity's `int176` operator. * * Requirements: * * - input must fit into 176 bits * * _Available since v4.7._ */ function toInt176(int256 value) internal pure returns (int176) { require(value >= type(int176).min && value <= type(int176).max, "SafeCast: value doesn't fit in 176 bits"); return int176(value); } /** * @dev Returns the downcasted int168 from int256, reverting on * overflow (when the input is less than smallest int168 or * greater than largest int168). * * Counterpart to Solidity's `int168` operator. * * Requirements: * * - input must fit into 168 bits * * _Available since v4.7._ */ function toInt168(int256 value) internal pure returns (int168) { require(value >= type(int168).min && value <= type(int168).max, "SafeCast: value doesn't fit in 168 bits"); return int168(value); } /** * @dev Returns the downcasted int160 from int256, reverting on * overflow (when the input is less than smallest int160 or * greater than largest int160). * * Counterpart to Solidity's `int160` operator. * * Requirements: * * - input must fit into 160 bits * * _Available since v4.7._ */ function toInt160(int256 value) internal pure returns (int160) { require(value >= type(int160).min && value <= type(int160).max, "SafeCast: value doesn't fit in 160 bits"); return int160(value); } /** * @dev Returns the downcasted int152 from int256, reverting on * overflow (when the input is less than smallest int152 or * greater than largest int152). * * Counterpart to Solidity's `int152` operator. * * Requirements: * * - input must fit into 152 bits * * _Available since v4.7._ */ function toInt152(int256 value) internal pure returns (int152) { require(value >= type(int152).min && value <= type(int152).max, "SafeCast: value doesn't fit in 152 bits"); return int152(value); } /** * @dev Returns the downcasted int144 from int256, reverting on * overflow (when the input is less than smallest int144 or * greater than largest int144). * * Counterpart to Solidity's `int144` operator. * * Requirements: * * - input must fit into 144 bits * * _Available since v4.7._ */ function toInt144(int256 value) internal pure returns (int144) { require(value >= type(int144).min && value <= type(int144).max, "SafeCast: value doesn't fit in 144 bits"); return int144(value); } /** * @dev Returns the downcasted int136 from int256, reverting on * overflow (when the input is less than smallest int136 or * greater than largest int136). * * Counterpart to Solidity's `int136` operator. * * Requirements: * * - input must fit into 136 bits * * _Available since v4.7._ */ function toInt136(int256 value) internal pure returns (int136) { require(value >= type(int136).min && value <= type(int136).max, "SafeCast: value doesn't fit in 136 bits"); return int136(value); } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits * * _Available since v3.1._ */ function toInt128(int256 value) internal pure returns (int128) { require(value >= type(int128).min && value <= type(int128).max, "SafeCast: value doesn't fit in 128 bits"); return int128(value); } /** * @dev Returns the downcasted int120 from int256, reverting on * overflow (when the input is less than smallest int120 or * greater than largest int120). * * Counterpart to Solidity's `int120` operator. * * Requirements: * * - input must fit into 120 bits * * _Available since v4.7._ */ function toInt120(int256 value) internal pure returns (int120) { require(value >= type(int120).min && value <= type(int120).max, "SafeCast: value doesn't fit in 120 bits"); return int120(value); } /** * @dev Returns the downcasted int112 from int256, reverting on * overflow (when the input is less than smallest int112 or * greater than largest int112). * * Counterpart to Solidity's `int112` operator. * * Requirements: * * - input must fit into 112 bits * * _Available since v4.7._ */ function toInt112(int256 value) internal pure returns (int112) { require(value >= type(int112).min && value <= type(int112).max, "SafeCast: value doesn't fit in 112 bits"); return int112(value); } /** * @dev Returns the downcasted int104 from int256, reverting on * overflow (when the input is less than smallest int104 or * greater than largest int104). * * Counterpart to Solidity's `int104` operator. * * Requirements: * * - input must fit into 104 bits * * _Available since v4.7._ */ function toInt104(int256 value) internal pure returns (int104) { require(value >= type(int104).min && value <= type(int104).max, "SafeCast: value doesn't fit in 104 bits"); return int104(value); } /** * @dev Returns the downcasted int96 from int256, reverting on * overflow (when the input is less than smallest int96 or * greater than largest int96). * * Counterpart to Solidity's `int96` operator. * * Requirements: * * - input must fit into 96 bits * * _Available since v4.7._ */ function toInt96(int256 value) internal pure returns (int96) { require(value >= type(int96).min && value <= type(int96).max, "SafeCast: value doesn't fit in 96 bits"); return int96(value); } /** * @dev Returns the downcasted int88 from int256, reverting on * overflow (when the input is less than smallest int88 or * greater than largest int88). * * Counterpart to Solidity's `int88` operator. * * Requirements: * * - input must fit into 88 bits * * _Available since v4.7._ */ function toInt88(int256 value) internal pure returns (int88) { require(value >= type(int88).min && value <= type(int88).max, "SafeCast: value doesn't fit in 88 bits"); return int88(value); } /** * @dev Returns the downcasted int80 from int256, reverting on * overflow (when the input is less than smallest int80 or * greater than largest int80). * * Counterpart to Solidity's `int80` operator. * * Requirements: * * - input must fit into 80 bits * * _Available since v4.7._ */ function toInt80(int256 value) internal pure returns (int80) { require(value >= type(int80).min && value <= type(int80).max, "SafeCast: value doesn't fit in 80 bits"); return int80(value); } /** * @dev Returns the downcasted int72 from int256, reverting on * overflow (when the input is less than smallest int72 or * greater than largest int72). * * Counterpart to Solidity's `int72` operator. * * Requirements: * * - input must fit into 72 bits * * _Available since v4.7._ */ function toInt72(int256 value) internal pure returns (int72) { require(value >= type(int72).min && value <= type(int72).max, "SafeCast: value doesn't fit in 72 bits"); return int72(value); } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits * * _Available since v3.1._ */ function toInt64(int256 value) internal pure returns (int64) { require(value >= type(int64).min && value <= type(int64).max, "SafeCast: value doesn't fit in 64 bits"); return int64(value); } /** * @dev Returns the downcasted int56 from int256, reverting on * overflow (when the input is less than smallest int56 or * greater than largest int56). * * Counterpart to Solidity's `int56` operator. * * Requirements: * * - input must fit into 56 bits * * _Available since v4.7._ */ function toInt56(int256 value) internal pure returns (int56) { require(value >= type(int56).min && value <= type(int56).max, "SafeCast: value doesn't fit in 56 bits"); return int56(value); } /** * @dev Returns the downcasted int48 from int256, reverting on * overflow (when the input is less than smallest int48 or * greater than largest int48). * * Counterpart to Solidity's `int48` operator. * * Requirements: * * - input must fit into 48 bits * * _Available since v4.7._ */ function toInt48(int256 value) internal pure returns (int48) { require(value >= type(int48).min && value <= type(int48).max, "SafeCast: value doesn't fit in 48 bits"); return int48(value); } /** * @dev Returns the downcasted int40 from int256, reverting on * overflow (when the input is less than smallest int40 or * greater than largest int40). * * Counterpart to Solidity's `int40` operator. * * Requirements: * * - input must fit into 40 bits * * _Available since v4.7._ */ function toInt40(int256 value) internal pure returns (int40) { require(value >= type(int40).min && value <= type(int40).max, "SafeCast: value doesn't fit in 40 bits"); return int40(value); } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits * * _Available since v3.1._ */ function toInt32(int256 value) internal pure returns (int32) { require(value >= type(int32).min && value <= type(int32).max, "SafeCast: value doesn't fit in 32 bits"); return int32(value); } /** * @dev Returns the downcasted int24 from int256, reverting on * overflow (when the input is less than smallest int24 or * greater than largest int24). * * Counterpart to Solidity's `int24` operator. * * Requirements: * * - input must fit into 24 bits * * _Available since v4.7._ */ function toInt24(int256 value) internal pure returns (int24) { require(value >= type(int24).min && value <= type(int24).max, "SafeCast: value doesn't fit in 24 bits"); return int24(value); } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits * * _Available since v3.1._ */ function toInt16(int256 value) internal pure returns (int16) { require(value >= type(int16).min && value <= type(int16).max, "SafeCast: value doesn't fit in 16 bits"); return int16(value); } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits * * _Available since v3.1._ */ function toInt8(int256 value) internal pure returns (int8) { require(value >= type(int8).min && value <= type(int8).max, "SafeCast: value doesn't fit in 8 bits"); return int8(value); } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. * * _Available since v3.0._ */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256"); return int256(value); } }
lib/openzeppelin-contracts-upgradeable/contracts/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
contracts/eip/interface/IERC20.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.0; /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom( address from, address to, uint256 value ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/extensions/draft-ERC20Permit.sol) pragma solidity ^0.8.0; import "./draft-IERC20PermitUpgradeable.sol"; import "../ERC20Upgradeable.sol"; import "../../../utils/cryptography/draft-EIP712Upgradeable.sol"; import "../../../utils/cryptography/ECDSAUpgradeable.sol"; import "../../../utils/CountersUpgradeable.sol"; import "../../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * _Available since v3.4._ * * @custom:storage-size 51 */ abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable { using CountersUpgradeable for CountersUpgradeable.Counter; mapping(address => CountersUpgradeable.Counter) private _nonces; // solhint-disable-next-line var-name-mixedcase bytes32 private constant _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`. * However, to ensure consistency with the upgradeable transpiler, we will continue * to reserve a slot. * @custom:oz-renamed-from _PERMIT_TYPEHASH */ // solhint-disable-next-line var-name-mixedcase bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT; /** * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`. * * It's a good idea to use the same `name` that is defined as the ERC20 token name. */ function __ERC20Permit_init(string memory name) internal onlyInitializing { __EIP712_init_unchained(name, "1"); } function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {} /** * @dev See {IERC20Permit-permit}. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual override { require(block.timestamp <= deadline, "ERC20Permit: expired deadline"); bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline)); bytes32 hash = _hashTypedDataV4(structHash); address signer = ECDSAUpgradeable.recover(hash, v, r, s); require(signer == owner, "ERC20Permit: invalid signature"); _approve(owner, spender, value); } /** * @dev See {IERC20Permit-nonces}. */ function nonces(address owner) public view virtual override returns (uint256) { return _nonces[owner].current(); } /** * @dev See {IERC20Permit-DOMAIN_SEPARATOR}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view override returns (bytes32) { return _domainSeparatorV4(); } /** * @dev "Consume a nonce": return the current value and increment. * * _Available since v4.1._ */ function _useNonce(address owner) internal virtual returns (uint256 current) { CountersUpgradeable.Counter storage nonce = _nonces[owner]; current = nonce.current(); nonce.increment(); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/utils/CountersUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library CountersUpgradeable { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
contracts/lib/TWAddress.sol
// SPDX-License-Identifier: Apache 2.0 pragma solidity ^0.8.0; /// @author thirdweb /** * @dev Collection of functions related to the address type */ library TWAddress { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * [EIP1884](https://eips.ethereum.org/EIPS/eip-1884) increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{ value: value }(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
lib/openzeppelin-contracts-upgradeable/contracts/access/AccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControlUpgradeable.sol"; import "../utils/ContextUpgradeable.sol"; import "../utils/StringsUpgradeable.sol"; import "../utils/introspection/ERC165Upgradeable.sol"; import "../proxy/utils/Initializable.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable { function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", StringsUpgradeable.toHexString(uint160(account), 20), " is missing role ", StringsUpgradeable.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/access/IAccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControlUpgradeable { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
lib/openzeppelin-contracts-upgradeable/contracts/utils/structs/EnumerableSetUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol) pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet. * ==== */ library EnumerableSetUpgradeable { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
lib/openzeppelin-contracts-upgradeable/contracts/governance/utils/IVotesUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (governance/utils/IVotes.sol) pragma solidity ^0.8.0; /** * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts. * * _Available since v4.5._ */ interface IVotesUpgradeable { /** * @dev Emitted when an account changes their delegate. */ event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /** * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes. */ event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); /** * @dev Returns the current amount of votes that `account` has. */ function getVotes(address account) external view returns (uint256); /** * @dev Returns the amount of votes that `account` had at the end of a past block (`blockNumber`). */ function getPastVotes(address account, uint256 blockNumber) external view returns (uint256); /** * @dev Returns the total supply of votes available at the end of a past block (`blockNumber`). * * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. * Votes that have not been delegated are still part of total supply, even though they would not participate in a * vote. */ function getPastTotalSupply(uint256 blockNumber) external view returns (uint256); /** * @dev Returns the delegate that `account` has chosen. */ function delegates(address account) external view returns (address); /** * @dev Delegates votes from the sender to `delegatee`. */ function delegate(address delegatee) external; /** * @dev Delegates votes from signer to `delegatee`. */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) external; }
lib/openzeppelin-contracts-upgradeable/contracts/utils/MulticallUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol) pragma solidity ^0.8.0; import "./AddressUpgradeable.sol"; import "../proxy/utils/Initializable.sol"; /** * @dev Provides a function to batch together multiple calls in a single external call. * * _Available since v4.1._ */ abstract contract MulticallUpgradeable is Initializable { function __Multicall_init() internal onlyInitializing { } function __Multicall_init_unchained() internal onlyInitializing { } /** * @dev Receives and executes a batch of function calls on this contract. */ function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) { results = new bytes[](data.length); for (uint256 i = 0; i < data.length; i++) { results[i] = _functionDelegateCall(address(this), data[i]); } return results; } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) { require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed"); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/ERC20VotesUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Votes.sol) pragma solidity ^0.8.0; import "./draft-ERC20PermitUpgradeable.sol"; import "../../../utils/math/MathUpgradeable.sol"; import "../../../governance/utils/IVotesUpgradeable.sol"; import "../../../utils/math/SafeCastUpgradeable.sol"; import "../../../utils/cryptography/ECDSAUpgradeable.sol"; import "../../../proxy/utils/Initializable.sol"; /** * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's, * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1. * * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module. * * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting * power can be queried through the public accessors {getVotes} and {getPastVotes}. * * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked. * * _Available since v4.2._ */ abstract contract ERC20VotesUpgradeable is Initializable, IVotesUpgradeable, ERC20PermitUpgradeable { function __ERC20Votes_init() internal onlyInitializing { } function __ERC20Votes_init_unchained() internal onlyInitializing { } struct Checkpoint { uint32 fromBlock; uint224 votes; } bytes32 private constant _DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); mapping(address => address) private _delegates; mapping(address => Checkpoint[]) private _checkpoints; Checkpoint[] private _totalSupplyCheckpoints; /** * @dev Get the `pos`-th checkpoint for `account`. */ function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) { return _checkpoints[account][pos]; } /** * @dev Get number of checkpoints for `account`. */ function numCheckpoints(address account) public view virtual returns (uint32) { return SafeCastUpgradeable.toUint32(_checkpoints[account].length); } /** * @dev Get the address `account` is currently delegating to. */ function delegates(address account) public view virtual override returns (address) { return _delegates[account]; } /** * @dev Gets the current votes balance for `account` */ function getVotes(address account) public view virtual override returns (uint256) { uint256 pos = _checkpoints[account].length; return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes; } /** * @dev Retrieve the number of votes for `account` at the end of `blockNumber`. * * Requirements: * * - `blockNumber` must have been already mined */ function getPastVotes(address account, uint256 blockNumber) public view virtual override returns (uint256) { require(blockNumber < block.number, "ERC20Votes: block not yet mined"); return _checkpointsLookup(_checkpoints[account], blockNumber); } /** * @dev Retrieve the `totalSupply` at the end of `blockNumber`. Note, this value is the sum of all balances. * It is but NOT the sum of all the delegated votes! * * Requirements: * * - `blockNumber` must have been already mined */ function getPastTotalSupply(uint256 blockNumber) public view virtual override returns (uint256) { require(blockNumber < block.number, "ERC20Votes: block not yet mined"); return _checkpointsLookup(_totalSupplyCheckpoints, blockNumber); } /** * @dev Lookup a value in a list of (sorted) checkpoints. */ function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 blockNumber) private view returns (uint256) { // We run a binary search to look for the earliest checkpoint taken after `blockNumber`. // // During the loop, the index of the wanted checkpoint remains in the range [low-1, high). // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant. // - If the middle checkpoint is after `blockNumber`, we look in [low, mid) // - If the middle checkpoint is before or equal to `blockNumber`, we look in [mid+1, high) // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not // out of bounds (in which case we're looking too far in the past and the result is 0). // Note that if the latest checkpoint available is exactly for `blockNumber`, we end up with an index that is // past the end of the array, so we technically don't find a checkpoint after `blockNumber`, but it works out // the same. uint256 high = ckpts.length; uint256 low = 0; while (low < high) { uint256 mid = MathUpgradeable.average(low, high); if (ckpts[mid].fromBlock > blockNumber) { high = mid; } else { low = mid + 1; } } return high == 0 ? 0 : ckpts[high - 1].votes; } /** * @dev Delegate votes from the sender to `delegatee`. */ function delegate(address delegatee) public virtual override { _delegate(_msgSender(), delegatee); } /** * @dev Delegates votes from signer to `delegatee` */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) public virtual override { require(block.timestamp <= expiry, "ERC20Votes: signature expired"); address signer = ECDSAUpgradeable.recover( _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))), v, r, s ); require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce"); _delegate(signer, delegatee); } /** * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1). */ function _maxSupply() internal view virtual returns (uint224) { return type(uint224).max; } /** * @dev Snapshots the totalSupply after it has been increased. */ function _mint(address account, uint256 amount) internal virtual override { super._mint(account, amount); require(totalSupply() <= _maxSupply(), "ERC20Votes: total supply risks overflowing votes"); _writeCheckpoint(_totalSupplyCheckpoints, _add, amount); } /** * @dev Snapshots the totalSupply after it has been decreased. */ function _burn(address account, uint256 amount) internal virtual override { super._burn(account, amount); _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount); } /** * @dev Move voting power when tokens are transferred. * * Emits a {DelegateVotesChanged} event. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual override { super._afterTokenTransfer(from, to, amount); _moveVotingPower(delegates(from), delegates(to), amount); } /** * @dev Change delegation for `delegator` to `delegatee`. * * Emits events {DelegateChanged} and {DelegateVotesChanged}. */ function _delegate(address delegator, address delegatee) internal virtual { address currentDelegate = delegates(delegator); uint256 delegatorBalance = balanceOf(delegator); _delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); _moveVotingPower(currentDelegate, delegatee, delegatorBalance); } function _moveVotingPower( address src, address dst, uint256 amount ) private { if (src != dst && amount > 0) { if (src != address(0)) { (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount); emit DelegateVotesChanged(src, oldWeight, newWeight); } if (dst != address(0)) { (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount); emit DelegateVotesChanged(dst, oldWeight, newWeight); } } } function _writeCheckpoint( Checkpoint[] storage ckpts, function(uint256, uint256) view returns (uint256) op, uint256 delta ) private returns (uint256 oldWeight, uint256 newWeight) { uint256 pos = ckpts.length; oldWeight = pos == 0 ? 0 : ckpts[pos - 1].votes; newWeight = op(oldWeight, delta); if (pos > 0 && ckpts[pos - 1].fromBlock == block.number) { ckpts[pos - 1].votes = SafeCastUpgradeable.toUint224(newWeight); } else { ckpts.push(Checkpoint({fromBlock: SafeCastUpgradeable.toUint32(block.number), votes: SafeCastUpgradeable.toUint224(newWeight)})); } } function _add(uint256 a, uint256 b) private pure returns (uint256) { return a + b; } function _subtract(uint256 a, uint256 b) private pure returns (uint256) { return a - b; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[47] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/ERC20BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.0; import "../ERC20Upgradeable.sol"; import "../../../utils/ContextUpgradeable.sol"; import "../../../proxy/utils/Initializable.sol"; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */ abstract contract ERC20BurnableUpgradeable is Initializable, ContextUpgradeable, ERC20Upgradeable { function __ERC20Burnable_init() internal onlyInitializing { } function __ERC20Burnable_init_unchained() internal onlyInitializing { } /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { _spendAllowance(account, _msgSender(), amount); _burn(account, amount); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
contracts/lib/CurrencyTransferLib.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.0; /// @author thirdweb // Helper interfaces import { IWETH } from "../interfaces/IWETH.sol"; import "../openzeppelin-presets/token/ERC20/utils/SafeERC20.sol"; library CurrencyTransferLib { using SafeERC20 for IERC20; /// @dev The address interpreted as native token of the chain. address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; /// @dev Transfers a given amount of currency. function transferCurrency( address _currency, address _from, address _to, uint256 _amount ) internal { if (_amount == 0) { return; } if (_currency == NATIVE_TOKEN) { safeTransferNativeToken(_to, _amount); } else { safeTransferERC20(_currency, _from, _to, _amount); } } /// @dev Transfers a given amount of currency. (With native token wrapping) function transferCurrencyWithWrapper( address _currency, address _from, address _to, uint256 _amount, address _nativeTokenWrapper ) internal { if (_amount == 0) { return; } if (_currency == NATIVE_TOKEN) { if (_from == address(this)) { // withdraw from weth then transfer withdrawn native token to recipient IWETH(_nativeTokenWrapper).withdraw(_amount); safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper); } else if (_to == address(this)) { // store native currency in weth require(_amount == msg.value, "msg.value != amount"); IWETH(_nativeTokenWrapper).deposit{ value: _amount }(); } else { safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper); } } else { safeTransferERC20(_currency, _from, _to, _amount); } } /// @dev Transfer `amount` of ERC20 token from `from` to `to`. function safeTransferERC20( address _currency, address _from, address _to, uint256 _amount ) internal { if (_from == _to) { return; } if (_from == address(this)) { IERC20(_currency).safeTransfer(_to, _amount); } else { IERC20(_currency).safeTransferFrom(_from, _to, _amount); } } /// @dev Transfers `amount` of native token to `to`. function safeTransferNativeToken(address to, uint256 value) internal { // solhint-disable avoid-low-level-calls // slither-disable-next-line low-level-calls (bool success, ) = to.call{ value: value }(""); require(success, "native token transfer failed"); } /// @dev Transfers `amount` of native token to `to`. (With native token wrapping) function safeTransferNativeTokenWithWrapper( address to, uint256 value, address _nativeTokenWrapper ) internal { // solhint-disable avoid-low-level-calls // slither-disable-next-line low-level-calls (bool success, ) = to.call{ value: value }(""); if (!success) { IWETH(_nativeTokenWrapper).deposit{ value: value }(); IERC20(_nativeTokenWrapper).safeTransfer(to, value); } } }
lib/openzeppelin-contracts-upgradeable/contracts/access/IAccessControlEnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControlUpgradeable.sol"; /** * @dev External interface of AccessControlEnumerable declared to support ERC165 detection. */ interface IAccessControlEnumerableUpgradeable is IAccessControlUpgradeable { /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) external view returns (address); /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) external view returns (uint256); }
contracts/openzeppelin-presets/metatx/ERC2771ContextUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.0 (metatx/ERC2771Context.sol) pragma solidity ^0.8.11; import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; /** * @dev Context variant with ERC2771 support. */ abstract contract ERC2771ContextUpgradeable is Initializable, ContextUpgradeable { mapping(address => bool) private _trustedForwarder; function __ERC2771Context_init(address[] memory trustedForwarder) internal onlyInitializing { __Context_init_unchained(); __ERC2771Context_init_unchained(trustedForwarder); } function __ERC2771Context_init_unchained(address[] memory trustedForwarder) internal onlyInitializing { for (uint256 i = 0; i < trustedForwarder.length; i++) { _trustedForwarder[trustedForwarder[i]] = true; } } function isTrustedForwarder(address forwarder) public view virtual returns (bool) { return _trustedForwarder[forwarder]; } function _msgSender() internal view virtual override returns (address sender) { if (isTrustedForwarder(msg.sender)) { // The assembly code is more direct than the Solidity version using `abi.decode`. assembly { sender := shr(96, calldataload(sub(calldatasize(), 20))) } } else { return super._msgSender(); } } function _msgData() internal view virtual override returns (bytes calldata) { if (isTrustedForwarder(msg.sender)) { return msg.data[:msg.data.length - 20]; } else { return super._msgData(); } } uint256[49] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20PermitUpgradeable { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20Upgradeable.sol"; import "./extensions/IERC20MetadataUpgradeable.sol"; import "../../utils/ContextUpgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing { __ERC20_init_unchained(name_, symbol_); } function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ 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); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ 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"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ 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); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ 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"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[45] private __gap; }
contracts/lib/FeeType.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.11; /// @author thirdweb library FeeType { uint256 internal constant PRIMARY_SALE = 0; uint256 internal constant MARKET_SALE = 1; uint256 internal constant SPLIT = 2; }
contracts/interfaces/IWETH.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.0; interface IWETH { function deposit() external payable; function withdraw(uint256 amount) external; function transfer(address to, uint256 value) external returns (bool); }
contracts/interfaces/token/ITokenERC20.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.11; import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol"; interface ITokenERC20 is IERC20MetadataUpgradeable { /** * @notice The body of a request to mint tokens. * * @param to The receiver of the tokens to mint. * @param primarySaleRecipient The receiver of the primary sale funds from the mint. * @param quantity The quantity of tpkens to mint. * @param price Price to pay for minting with the signature. * @param currency The currency in which the price per token must be paid. * @param validityStartTimestamp The unix timestamp after which the request is valid. * @param validityEndTimestamp The unix timestamp after which the request expires. * @param uid A unique identifier for the request. */ struct MintRequest { address to; address primarySaleRecipient; uint256 quantity; uint256 price; address currency; uint128 validityStartTimestamp; uint128 validityEndTimestamp; bytes32 uid; } /// @dev Emitted when an account with MINTER_ROLE mints an NFT. event TokensMinted(address indexed mintedTo, uint256 quantityMinted); /// @dev Emitted when tokens are minted. event TokensMintedWithSignature(address indexed signer, address indexed mintedTo, MintRequest mintRequest); /** * @notice Verifies that a mint request is signed by an account holding * MINTER_ROLE (at the time of the function call). * * @param req The mint request. * @param signature The signature produced by an account signing the mint request. * * returns (success, signer) Result of verification and the recovered address. */ function verify(MintRequest calldata req, bytes calldata signature) external view returns (bool success, address signer); /** * @dev Creates `amount` new tokens for `to`. * * See {ERC20-_mint}. * * Requirements: * * - the caller must have the `MINTER_ROLE`. */ function mintTo(address to, uint256 amount) external; /** * @notice Mints an NFT according to the provided mint request. * * @param req The mint request. * @param signature he signature produced by an account signing the mint request. */ function mintWithSignature(MintRequest calldata req, bytes calldata signature) external payable; }
contracts/extension/interface/IPlatformFee.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.0; /// @author thirdweb /** * Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading * the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic * that uses information about platform fees, if desired. */ interface IPlatformFee { /// @dev Fee type variants: percentage fee and flat fee enum PlatformFeeType { Bps, Flat } /// @dev Returns the platform fee bps and recipient. function getPlatformFeeInfo() external view returns (address, uint16); /// @dev Lets a module admin update the fees on primary sales. function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external; /// @dev Emitted when fee on primary sales is updated. event PlatformFeeInfoUpdated(address indexed platformFeeRecipient, uint256 platformFeeBps); /// @dev Emitted when the flat platform fee is updated. event FlatPlatformFeeUpdated(address platformFeeRecipient, uint256 flatFee); /// @dev Emitted when the platform fee type is updated. event PlatformFeeTypeUpdated(PlatformFeeType feeType); }
lib/openzeppelin-contracts-upgradeable/contracts/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
contracts/openzeppelin-presets/token/ERC20/utils/SafeERC20.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../../../../eip/interface/IERC20.sol"; import "../../../../lib/TWAddress.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using TWAddress for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
contracts/extension/interface/IPrimarySale.sol
// SPDX-License-Identifier: Apache-2.0 pragma solidity ^0.8.0; /// @author thirdweb /** * Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading * the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about * primary sales, if desired. */ interface IPrimarySale { /// @dev The adress that receives all primary sales value. function primarySaleRecipient() external view returns (address); /// @dev Lets a module admin set the default recipient of all primary sales. function setPrimarySaleRecipient(address _saleRecipient) external; /// @dev Emitted when a new sale recipient is set. event PrimarySaleRecipientUpdated(address indexed recipient); }
lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
lib/openzeppelin-contracts-upgradeable/contracts/access/AccessControlEnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControlEnumerableUpgradeable.sol"; import "./AccessControlUpgradeable.sol"; import "../utils/structs/EnumerableSetUpgradeable.sol"; import "../proxy/utils/Initializable.sol"; /** * @dev Extension of {AccessControl} that allows enumerating the members of each role. */ abstract contract AccessControlEnumerableUpgradeable is Initializable, IAccessControlEnumerableUpgradeable, AccessControlUpgradeable { function __AccessControlEnumerable_init() internal onlyInitializing { } function __AccessControlEnumerable_init_unchained() internal onlyInitializing { } using EnumerableSetUpgradeable for EnumerableSetUpgradeable.AddressSet; mapping(bytes32 => EnumerableSetUpgradeable.AddressSet) private _roleMembers; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlEnumerableUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) { return _roleMembers[role].at(index); } /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) { return _roleMembers[role].length(); } /** * @dev Overload {_grantRole} to track enumerable memberships */ function _grantRole(bytes32 role, address account) internal virtual override { super._grantRole(role, account); _roleMembers[role].add(account); } /** * @dev Overload {_revokeRole} to track enumerable memberships */ function _revokeRole(bytes32 role, address account) internal virtual override { super._revokeRole(role, account); _roleMembers[role].remove(account); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/IERC20Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20Upgradeable { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
Compiler Settings
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Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[]},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"spender","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"DelegateChanged","inputs":[{"type":"address","name":"delegator","internalType":"address","indexed":true},{"type":"address","name":"fromDelegate","internalType":"address","indexed":true},{"type":"address","name":"toDelegate","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"DelegateVotesChanged","inputs":[{"type":"address","name":"delegate","internalType":"address","indexed":true},{"type":"uint256","name":"previousBalance","internalType":"uint256","indexed":false},{"type":"uint256","name":"newBalance","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"FlatPlatformFeeUpdated","inputs":[{"type":"address","name":"platformFeeRecipient","internalType":"address","indexed":false},{"type":"uint256","name":"flatFee","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Initialized","inputs":[{"type":"uint8","name":"version","internalType":"uint8","indexed":false}],"anonymous":false},{"type":"event","name":"PlatformFeeInfoUpdated","inputs":[{"type":"address","name":"platformFeeRecipient","internalType":"address","indexed":true},{"type":"uint256","name":"platformFeeBps","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"PlatformFeeTypeUpdated","inputs":[{"type":"uint8","name":"feeType","internalType":"enum IPlatformFee.PlatformFeeType","indexed":false}],"anonymous":false},{"type":"event","name":"PrimarySaleRecipientUpdated","inputs":[{"type":"address","name":"recipient","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"RoleAdminChanged","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"previousAdminRole","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"newAdminRole","internalType":"bytes32","indexed":true}],"anonymous":false},{"type":"event","name":"RoleGranted","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"address","name":"account","internalType":"address","indexed":true},{"type":"address","name":"sender","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"RoleRevoked","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"address","name":"account","internalType":"address","indexed":true},{"type":"address","name":"sender","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"TokensMinted","inputs":[{"type":"address","name":"mintedTo","internalType":"address","indexed":true},{"type":"uint256","name":"quantityMinted","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"TokensMintedWithSignature","inputs":[{"type":"address","name":"signer","internalType":"address","indexed":true},{"type":"address","name":"mintedTo","internalType":"address","indexed":true},{"type":"tuple","name":"mintRequest","internalType":"struct ITokenERC20.MintRequest","indexed":false,"components":[{"type":"address","name":"to","internalType":"address"},{"type":"address","name":"primarySaleRecipient","internalType":"address"},{"type":"uint256","name":"quantity","internalType":"uint256"},{"type":"uint256","name":"price","internalType":"uint256"},{"type":"address","name":"currency","internalType":"address"},{"type":"uint128","name":"validityStartTimestamp","internalType":"uint128"},{"type":"uint128","name":"validityEndTimestamp","internalType":"uint128"},{"type":"bytes32","name":"uid","internalType":"bytes32"}]}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"DEFAULT_ADMIN_ROLE","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"DOMAIN_SEPARATOR","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"allowance","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"spender","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"approve","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOf","inputs":[{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"burn","inputs":[{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"burnFrom","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"","internalType":"struct ERC20VotesUpgradeable.Checkpoint","components":[{"type":"uint32","name":"fromBlock","internalType":"uint32"},{"type":"uint224","name":"votes","internalType":"uint224"}]}],"name":"checkpoints","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint32","name":"pos","internalType":"uint32"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"contractType","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"contractURI","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"contractVersion","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"decreaseAllowance","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"subtractedValue","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"delegate","inputs":[{"type":"address","name":"delegatee","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"delegateBySig","inputs":[{"type":"address","name":"delegatee","internalType":"address"},{"type":"uint256","name":"nonce","internalType":"uint256"},{"type":"uint256","name":"expiry","internalType":"uint256"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"delegates","inputs":[{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getPastTotalSupply","inputs":[{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getPastVotes","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"},{"type":"uint16","name":"","internalType":"uint16"}],"name":"getPlatformFeeInfo","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"getRoleAdmin","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"getRoleMember","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"uint256","name":"index","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getRoleMemberCount","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getVotes","inputs":[{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"grantRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"hasRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"increaseAllowance","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"addedValue","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"initialize","inputs":[{"type":"address","name":"_defaultAdmin","internalType":"address"},{"type":"string","name":"_name","internalType":"string"},{"type":"string","name":"_symbol","internalType":"string"},{"type":"string","name":"_contractURI","internalType":"string"},{"type":"address[]","name":"_trustedForwarders","internalType":"address[]"},{"type":"address","name":"_primarySaleRecipient","internalType":"address"},{"type":"address","name":"_platformFeeRecipient","internalType":"address"},{"type":"uint256","name":"_platformFeeBps","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isTrustedForwarder","inputs":[{"type":"address","name":"forwarder","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"mintTo","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"mintWithSignature","inputs":[{"type":"tuple","name":"_req","internalType":"struct ITokenERC20.MintRequest","components":[{"type":"address","name":"to","internalType":"address"},{"type":"address","name":"primarySaleRecipient","internalType":"address"},{"type":"uint256","name":"quantity","internalType":"uint256"},{"type":"uint256","name":"price","internalType":"uint256"},{"type":"address","name":"currency","internalType":"address"},{"type":"uint128","name":"validityStartTimestamp","internalType":"uint128"},{"type":"uint128","name":"validityEndTimestamp","internalType":"uint128"},{"type":"bytes32","name":"uid","internalType":"bytes32"}]},{"type":"bytes","name":"_signature","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bytes[]","name":"results","internalType":"bytes[]"}],"name":"multicall","inputs":[{"type":"bytes[]","name":"data","internalType":"bytes[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"name","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"nonces","inputs":[{"type":"address","name":"owner","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"numCheckpoints","inputs":[{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"permit","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"primarySaleRecipient","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"revokeRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setContractURI","inputs":[{"type":"string","name":"_uri","internalType":"string"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPlatformFeeInfo","inputs":[{"type":"address","name":"_platformFeeRecipient","internalType":"address"},{"type":"uint256","name":"_platformFeeBps","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPrimarySaleRecipient","inputs":[{"type":"address","name":"_saleRecipient","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"supportsInterface","inputs":[{"type":"bytes4","name":"interfaceId","internalType":"bytes4"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"symbol","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalSupply","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transfer","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transferFrom","inputs":[{"type":"address","name":"from","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"},{"type":"address","name":"","internalType":"address"}],"name":"verify","inputs":[{"type":"tuple","name":"_req","internalType":"struct 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Contract Creation Code
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