ERC-721
Overview
Max Total Supply
0 HYF2
Holders
683
Market
Onchain Market Cap
-
Circulating Supply Market Cap
-
Other Info
Token Contract
Balance
1 HYF2Loading...
Loading
Loading...
Loading
Loading...
Loading
Contract Source Code Verified (Exact Match)
Contract Name:
HyperFrogsV2
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 500 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; // OpenZeppelin Contracts import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/common/ERC2981.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/utils/Pausable.sol"; import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/utils/Base64.sol"; /// -------------------------------------------------------------------------- /// Interfaces for Trait Contracts /// -------------------------------------------------------------------------- interface IFrogsBackdrop { function getBackdropData(uint) external view returns (string memory); function getBackdropTrait(uint) external view returns (string memory); } interface IFrogsOneOfOne { function getOneOfOneData(uint) external view returns (bytes memory); function getOneOfOneTrait(uint) external view returns (string memory); } interface IFrogsBody { function getBodyData(uint) external view returns (bytes memory); function getBodyTrait(uint) external view returns (string memory); } interface IFrogsHats { function getHatsData(uint) external view returns (bytes memory); function getHatsTrait(uint) external view returns (string memory); } interface IFrogsEyesA { function getEyesAData(uint) external view returns (bytes memory); function getEyesATrait(uint) external view returns (string memory); } interface IFrogsEyesB { function getEyesBData(uint) external view returns (bytes memory); function getEyesBTrait(uint) external view returns (string memory); } interface IFrogsMouth { function getMouthData(uint) external view returns (bytes memory); function getMouthTrait(uint) external view returns (string memory); } interface IFrogsFeet { function getFeetData(uint) external view returns (bytes memory); function getFeetTrait(uint) external view returns (string memory); } /// -------------------------------------------------------------------------- /// Interface for the Old HyperFrogs Contract /// -------------------------------------------------------------------------- interface IHyperFrogs { function ownerOf(uint256 tokenId) external view returns (address); function burn(uint256 tokenId) external; function transferFrom(address from, address to, uint256 tokenId) external; function tokenURI(uint256 tokenId) external view returns (string memory); function buildSVG(uint256 tokenId) external view returns (string memory); function tokenTraits(uint256 tokenId) external view returns ( bool oneOfOne, uint oneOfOneIndex, uint backdrop, uint hat, uint eyesIndex, bool eyesIsA, uint mouth, uint body, uint feet ); } /// -------------------------------------------------------------------------- /// HyperFrogsV2 Migration Contract using ERC721 and AccessControl /// -------------------------------------------------------------------------- contract HyperFrogsV2 is ERC721, AccessControl, Pausable, ReentrancyGuard, ERC2981 { using Strings for uint256; uint256 public totalMigrated; // ----------------------------------------------------------------------- // Events // ----------------------------------------------------------------------- event TokenMigrated(address indexed owner, uint256 indexed tokenId, uint256 migrationBatch); // ----------------------------------------------------------------------- // Struct & State Variables // ----------------------------------------------------------------------- struct TraitStruct { bool oneOfOne; uint oneOfOneIndex; uint backdrop; uint hat; uint eyesIndex; bool eyesIsA; uint mouth; uint body; uint feet; } // ----------------------------------------------------------------------- // Custom Errors // ----------------------------------------------------------------------- error TokenAlreadyMigrated(uint256 tokenId); error NotOwnerOfOldNFT(uint256 tokenId, address actual, address sender); error NoTokenIDsProvided(); error BatchSizeToLarge(); error TokenNotMigratedYet(uint256 tokenId); IHyperFrogs public oldContract; mapping(uint256 => bool) public claimed; mapping(uint256 => TraitStruct) public tokenTraits; // Trait contract references – reuse the same contracts as in the original IFrogsBackdrop public frogsBackdrop; IFrogsOneOfOne public frogsOneOfOne; IFrogsBody public frogsBody; IFrogsHats public frogsHats; IFrogsEyesA public frogsEyesA; IFrogsEyesB public frogsEyesB; IFrogsMouth public frogsMouth; IFrogsFeet public frogsFeet; // ----------------------------------------------------------------------- // Events // ----------------------------------------------------------------------- event TokenMigrated(address indexed owner, uint256 indexed tokenId); // Optional debug event to help with troubleshooting ownerOf values event DebugOwner(address actualOwner); // ----------------------------------------------------------------------- // Constructor // ----------------------------------------------------------------------- constructor( address _oldContract, address _frogsBackdrop, address _frogsOneOfOne, address _frogsBody, address _frogsHats, address _frogsEyesA, address _frogsEyesB, address _frogsMouth, address _frogsFeet ) ERC721("Hyper Frogs", "HYF2") ERC2981() { require(_oldContract != address(0), "Invalid old contract address"); oldContract = IHyperFrogs(_oldContract); frogsBackdrop = IFrogsBackdrop(_frogsBackdrop); frogsOneOfOne = IFrogsOneOfOne(_frogsOneOfOne); frogsBody = IFrogsBody(_frogsBody); frogsHats = IFrogsHats(_frogsHats); frogsEyesA = IFrogsEyesA(_frogsEyesA); frogsEyesB = IFrogsEyesB(_frogsEyesB); frogsMouth = IFrogsMouth(_frogsMouth); frogsFeet = IFrogsFeet(_frogsFeet); _setDefaultRoyalty(msg.sender, 350); _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); } // ----------------------------------------------------------------------- // ERC2981, ERC721, and AccessControl Interface Support // ----------------------------------------------------------------------- /** * @notice Override supportsInterface to combine ERC721, ERC2981, and AccessControl interfaces. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC2981, AccessControl) returns (bool) { return ERC721.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId) || AccessControl.supportsInterface(interfaceId); } // ----------------------------------------------------------------------- // Migration Functionality // ----------------------------------------------------------------------- /** * @notice Batch claim (migrate) multiple NFTs at once. * Requirements: * - Caller must be owner of each token in the old contract. * - Each token must not have been migrated before. * - The contract must not be paused. */ function batchClaim(uint256[] calldata tokenIds) external whenNotPaused nonReentrant { uint256 length = tokenIds.length; uint256 batchId = totalMigrated; // Use as a batch identifier if (length == 0) revert NoTokenIDsProvided(); if (length > 20) revert BatchSizeToLarge(); for (uint256 i = 0; i < length; i++) { uint256 tokenId = tokenIds[i]; if (claimed[tokenId]) revert TokenAlreadyMigrated(tokenId); address actualOwner = oldContract.ownerOf(tokenId); if (actualOwner != msg.sender) revert NotOwnerOfOldNFT(tokenId, actualOwner, msg.sender); // Retrieve traits from the old contract using its public tokenTraits mapping ( bool oneOfOne, uint oneOfOneIndex, uint backdrop, uint hat, uint eyesIndex, bool eyesIsA, uint mouth, uint body, uint feet ) = oldContract.tokenTraits(tokenId); tokenTraits[tokenId] = TraitStruct({ oneOfOne: oneOfOne, oneOfOneIndex: oneOfOneIndex, backdrop: backdrop, hat: hat, eyesIndex: eyesIndex, eyesIsA: eyesIsA, mouth: mouth, body: body, feet: feet }); // Mint the NFT with the same tokenId _safeMint(msg.sender, tokenId); // Mark token as claimed after minting succeeds claimed[tokenId] = true; totalMigrated++; emit TokenMigrated(msg.sender, tokenId, batchId); // Attempt to burn the old NFT; if burn fails, transfer it to the old contract's address (lockup) try oldContract.burn(tokenId) { // Burn succeeded. } catch { oldContract.transferFrom(msg.sender, address(oldContract), tokenId); } emit TokenMigrated(msg.sender, tokenId); } } /** * @notice Check the migration status of multiple tokens. * Returns an array of booleans indicating whether each token has been migrated. */ function checkMigrationStatus(uint256[] calldata tokenIds) external view returns (bool[] memory statuses) { statuses = new bool[](tokenIds.length); for (uint256 i = 0; i < tokenIds.length; i++) { statuses[i] = claimed[tokenIds[i]]; } return statuses; } // ----------------------------------------------------------------------- // SVG & Metadata Generation Functions // ----------------------------------------------------------------------- /** * @notice Returns the tokenURI for a given tokenId. * Rebuilds the on-chain SVG and metadata exactly as in the original contract. */ function tokenURI(uint256 tokenId) public view override returns (string memory) { string memory image = buildSVG(tokenId); string memory base64Image = Base64.encode(bytes(image)); string memory json = string( abi.encodePacked( '{"name": "Hyper Frog #', tokenId.toString(), '",', '"description": "Hyper Frogs are pure ASCII art frogs and live 100% onchain on Hyperliquid.",', '"attributes": [', _getFrogTraits(tokenId), '],', '"image": "data:image/svg+xml;base64,', base64Image, '"}' ) ); return string(abi.encodePacked("data:application/json;base64,", Base64.encode(bytes(json)))); } /** * @notice Rebuilds the on-chain SVG using stored traits. */ function buildSVG(uint tokenId) public view returns (string memory) { if (!claimed[tokenId]) revert TokenNotMigratedYet(tokenId); TraitStruct memory traits = tokenTraits[tokenId]; if (traits.oneOfOne) { return string( abi.encodePacked( '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 90 90" shape-rendering="crispEdges" width="512" height="512">', '<style>', 'svg {', 'width: 100%;', 'height: 100%;', 'margin: 0;', 'padding: 0;', 'overflow: hidden;', 'display: flex;', 'justify-content: center;', 'background:', frogsBackdrop.getBackdropData(traits.backdrop), ';', '}', '</style>', '<rect width="90" height="90" fill="', frogsBackdrop.getBackdropData(traits.backdrop), '"/>', _getSVGTraitData(frogsOneOfOne.getOneOfOneData(traits.oneOfOneIndex)), '</svg>' ) ); } return string( abi.encodePacked( '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 90 90" shape-rendering="crispEdges" width="512" height="512">', '<style>', 'svg {', 'width: 100%;', 'height: 100%;', 'margin: 0;', 'padding: 0;', 'overflow: hidden;', 'display: flex;', 'justify-content: center;', 'background:', frogsBackdrop.getBackdropData(traits.backdrop), ';', '}', '</style>', '<rect width="90" height="90" fill="', frogsBackdrop.getBackdropData(traits.backdrop), '"/>', _getSVGTraitData(frogsBody.getBodyData(traits.body)), _getSVGTraitData(frogsHats.getHatsData(traits.hat)), _getSVGTraitData(traits.eyesIsA ? frogsEyesA.getEyesAData(traits.eyesIndex) : frogsEyesB.getEyesBData(traits.eyesIndex)), _getSVGTraitData(frogsMouth.getMouthData(traits.mouth)), _getSVGTraitData(frogsFeet.getFeetData(traits.feet)), '</svg>' ) ); } /** * @notice Trims trailing zero bytes from data. */ function trimTrailingZeros(bytes memory data) internal pure returns (bytes memory) { uint256 len = data.length; while (len > 0 && data[len - 1] == 0) { len--; } bytes memory trimmed = new bytes(len); for (uint256 i = 0; i < len; i++) { trimmed[i] = data[i]; } return trimmed; } /** * @notice Converts bytes data to a string after trimming trailing zeros. */ function _getSVGTraitData(bytes memory data) internal pure returns (string memory) { if (data.length == 0) return ""; bytes memory trimmedData = trimTrailingZeros(data); return string(trimmedData); } /** * @notice Builds the JSON attributes string for a token. */ function _getFrogTraits(uint tokenId) internal view returns (string memory) { TraitStruct memory traits = tokenTraits[tokenId]; if (traits.oneOfOne) { string memory traitName = frogsOneOfOne.getOneOfOneTrait(traits.oneOfOneIndex); return string( abi.encodePacked( '{"trait_type":"Backdrop", "value":"', frogsBackdrop.getBackdropTrait(traits.backdrop), '"},', '{"trait_type":"Hat", "value":"', traitName, '"},', '{"trait_type":"Eyes", "value":"', traitName, '"},', '{"trait_type":"Mouth", "value":"', traitName, '"},', '{"trait_type":"Body", "value":"', traitName, '"},', '{"trait_type":"Feet", "value":"', traitName, '"}' ) ); } string memory eyesTrait = traits.eyesIsA ? frogsEyesA.getEyesATrait(traits.eyesIndex) : frogsEyesB.getEyesBTrait(traits.eyesIndex); return string( abi.encodePacked( '{"trait_type":"Backdrop", "value":"', frogsBackdrop.getBackdropTrait(traits.backdrop), '"},', '{"trait_type":"Hat", "value":"', frogsHats.getHatsTrait(traits.hat), '"},', '{"trait_type":"Eyes", "value":"', eyesTrait, '"},', '{"trait_type":"Mouth", "value":"', frogsMouth.getMouthTrait(traits.mouth), '"},', '{"trait_type":"Body", "value":"', frogsBody.getBodyTrait(traits.body), '"},', '{"trait_type":"Feet", "value":"', frogsFeet.getFeetTrait(traits.feet), '"}' ) ); } // ----------------------------------------------------------------------- // Admin & Emergency Functions // ----------------------------------------------------------------------- function pause() external onlyRole(DEFAULT_ADMIN_ROLE) { _pause(); } function unpause() external onlyRole(DEFAULT_ADMIN_ROLE) { _unpause(); } /** * @notice Emergency admin function to manually mark tokens as migrated. */ function markAsMigrated(uint256[] calldata tokenIds) external onlyRole(DEFAULT_ADMIN_ROLE) { uint256 length = tokenIds.length; for (uint256 i = 0; i < length; i++) { claimed[tokenIds[i]] = true; } } function adminMigrate(uint256[] calldata tokenIds, address recipient) external onlyRole(DEFAULT_ADMIN_ROLE) { for (uint256 i = 0; i < tokenIds.length; i++) { uint256 tokenId = tokenIds[i]; require(!claimed[tokenId], "Token already migrated"); // Retrieve traits from old contract ( bool oneOfOne, uint oneOfOneIndex, uint backdrop, uint hat, uint eyesIndex, bool eyesIsA, uint mouth, uint body, uint feet ) = oldContract.tokenTraits(tokenId); tokenTraits[tokenId] = TraitStruct({ oneOfOne: oneOfOne, oneOfOneIndex: oneOfOneIndex, backdrop: backdrop, hat: hat, eyesIndex: eyesIndex, eyesIsA: eyesIsA, mouth: mouth, body: body, feet: feet }); _safeMint(recipient, tokenId); claimed[tokenId] = true; totalMigrated++; emit TokenMigrated(recipient, tokenId, totalMigrated); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol) pragma solidity ^0.8.20; import {IAccessControl} from "./IAccessControl.sol"; import {Context} from "../utils/Context.sol"; import {ERC165} from "../utils/introspection/ERC165.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: * * ```solidity * 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}: * * ```solidity * 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. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address account => bool) hasRole; bytes32 adminRole; } mapping(bytes32 role => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with an {AccessControlUnauthorizedAccount} error including the required role. */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual returns (bool) { return _roles[role].hasRole[account]; } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()` * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier. */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account` * is missing `role`. */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert AccessControlUnauthorizedAccount(account, role); } } /** * @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 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 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 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 `callerConfirmation`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address callerConfirmation) public virtual { if (callerConfirmation != _msgSender()) { revert AccessControlBadConfirmation(); } _revokeRole(role, callerConfirmation); } /** * @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 Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual returns (bool) { if (!hasRole(role, account)) { _roles[role].hasRole[account] = true; emit RoleGranted(role, account, _msgSender()); return true; } else { return false; } } /** * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual returns (bool) { if (hasRole(role, account)) { _roles[role].hasRole[account] = false; emit RoleRevoked(role, account, _msgSender()); return true; } else { return false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.20; import {IERC721} from "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/utils/ERC721Utils.sol) pragma solidity ^0.8.20; import {IERC721Receiver} from "../IERC721Receiver.sol"; import {IERC721Errors} from "../../../interfaces/draft-IERC6093.sol"; /** * @dev Library that provide common ERC-721 utility functions. * * See https://eips.ethereum.org/EIPS/eip-721[ERC-721]. * * _Available since v5.1._ */ library ERC721Utils { /** * @dev Performs an acceptance check for the provided `operator` by calling {IERC721-onERC721Received} * on the `to` address. The `operator` is generally the address that initiated the token transfer (i.e. `msg.sender`). * * The acceptance call is not executed and treated as a no-op if the target address doesn't contain code (i.e. an EOA). * Otherwise, the recipient must implement {IERC721Receiver-onERC721Received} and return the acceptance magic value to accept * the transfer. */ function checkOnERC721Received( address operator, address from, address to, uint256 tokenId, bytes memory data ) internal { if (to.code.length > 0) { try IERC721Receiver(to).onERC721Received(operator, from, tokenId, data) returns (bytes4 retval) { if (retval != IERC721Receiver.onERC721Received.selector) { // Token rejected revert IERC721Errors.ERC721InvalidReceiver(to); } } catch (bytes memory reason) { if (reason.length == 0) { // non-IERC721Receiver implementer revert IERC721Errors.ERC721InvalidReceiver(to); } else { assembly ("memory-safe") { revert(add(32, reason), mload(reason)) } } } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/common/ERC2981.sol) pragma solidity ^0.8.20; import {IERC2981} from "../../interfaces/IERC2981.sol"; import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the ERC. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 tokenId => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev The default royalty set is invalid (eg. (numerator / denominator) >= 1). */ error ERC2981InvalidDefaultRoyalty(uint256 numerator, uint256 denominator); /** * @dev The default royalty receiver is invalid. */ error ERC2981InvalidDefaultRoyaltyReceiver(address receiver); /** * @dev The royalty set for an specific `tokenId` is invalid (eg. (numerator / denominator) >= 1). */ error ERC2981InvalidTokenRoyalty(uint256 tokenId, uint256 numerator, uint256 denominator); /** * @dev The royalty receiver for `tokenId` is invalid. */ error ERC2981InvalidTokenRoyaltyReceiver(uint256 tokenId, address receiver); /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo( uint256 tokenId, uint256 salePrice ) public view virtual returns (address receiver, uint256 amount) { RoyaltyInfo storage _royaltyInfo = _tokenRoyaltyInfo[tokenId]; address royaltyReceiver = _royaltyInfo.receiver; uint96 royaltyFraction = _royaltyInfo.royaltyFraction; if (royaltyReceiver == address(0)) { royaltyReceiver = _defaultRoyaltyInfo.receiver; royaltyFraction = _defaultRoyaltyInfo.royaltyFraction; } uint256 royaltyAmount = (salePrice * royaltyFraction) / _feeDenominator(); return (royaltyReceiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { uint256 denominator = _feeDenominator(); if (feeNumerator > denominator) { // Royalty fee will exceed the sale price revert ERC2981InvalidDefaultRoyalty(feeNumerator, denominator); } if (receiver == address(0)) { revert ERC2981InvalidDefaultRoyaltyReceiver(address(0)); } _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual { uint256 denominator = _feeDenominator(); if (feeNumerator > denominator) { // Royalty fee will exceed the sale price revert ERC2981InvalidTokenRoyalty(tokenId, feeNumerator, denominator); } if (receiver == address(0)) { revert ERC2981InvalidTokenRoyaltyReceiver(tokenId, address(0)); } _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Base64.sol) pragma solidity ^0.8.20; /** * @dev Provides a set of functions to operate with Base64 strings. */ library Base64 { /** * @dev Base64 Encoding/Decoding Table * See sections 4 and 5 of https://datatracker.ietf.org/doc/html/rfc4648 */ string internal constant _TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; string internal constant _TABLE_URL = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; /** * @dev Converts a `bytes` to its Bytes64 `string` representation. */ function encode(bytes memory data) internal pure returns (string memory) { return _encode(data, _TABLE, true); } /** * @dev Converts a `bytes` to its Bytes64Url `string` representation. * Output is not padded with `=` as specified in https://www.rfc-editor.org/rfc/rfc4648[rfc4648]. */ function encodeURL(bytes memory data) internal pure returns (string memory) { return _encode(data, _TABLE_URL, false); } /** * @dev Internal table-agnostic conversion */ function _encode(bytes memory data, string memory table, bool withPadding) private pure returns (string memory) { /** * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol */ if (data.length == 0) return ""; // If padding is enabled, the final length should be `bytes` data length divided by 3 rounded up and then // multiplied by 4 so that it leaves room for padding the last chunk // - `data.length + 2` -> Prepare for division rounding up // - `/ 3` -> Number of 3-bytes chunks (rounded up) // - `4 *` -> 4 characters for each chunk // This is equivalent to: 4 * Math.ceil(data.length / 3) // // If padding is disabled, the final length should be `bytes` data length multiplied by 4/3 rounded up as // opposed to when padding is required to fill the last chunk. // - `4 * data.length` -> 4 characters for each chunk // - ` + 2` -> Prepare for division rounding up // - `/ 3` -> Number of 3-bytes chunks (rounded up) // This is equivalent to: Math.ceil((4 * data.length) / 3) uint256 resultLength = withPadding ? 4 * ((data.length + 2) / 3) : (4 * data.length + 2) / 3; string memory result = new string(resultLength); assembly ("memory-safe") { // Prepare the lookup table (skip the first "length" byte) let tablePtr := add(table, 1) // Prepare result pointer, jump over length let resultPtr := add(result, 0x20) let dataPtr := data let endPtr := add(data, mload(data)) // In some cases, the last iteration will read bytes after the end of the data. We cache the value, and // set it to zero to make sure no dirty bytes are read in that section. let afterPtr := add(endPtr, 0x20) let afterCache := mload(afterPtr) mstore(afterPtr, 0x00) // Run over the input, 3 bytes at a time for { } lt(dataPtr, endPtr) { } { // Advance 3 bytes dataPtr := add(dataPtr, 3) let input := mload(dataPtr) // To write each character, shift the 3 byte (24 bits) chunk // 4 times in blocks of 6 bits for each character (18, 12, 6, 0) // and apply logical AND with 0x3F to bitmask the least significant 6 bits. // Use this as an index into the lookup table, mload an entire word // so the desired character is in the least significant byte, and // mstore8 this least significant byte into the result and continue. mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F)))) resultPtr := add(resultPtr, 1) // Advance } // Reset the value that was cached mstore(afterPtr, afterCache) if withPadding { // When data `bytes` is not exactly 3 bytes long // it is padded with `=` characters at the end switch mod(mload(data), 3) case 1 { mstore8(sub(resultPtr, 1), 0x3d) mstore8(sub(resultPtr, 2), 0x3d) } case 2 { mstore8(sub(resultPtr, 1), 0x3d) } } } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol) pragma solidity ^0.8.20; /** * @dev External interface of AccessControl declared to support ERC-165 detection. */ interface IAccessControl { /** * @dev The `account` is missing a role. */ error AccessControlUnauthorizedAccount(address account, bytes32 neededRole); /** * @dev The caller of a function is not the expected one. * * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}. */ error AccessControlBadConfirmation(); /** * @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. */ 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. This account bears the admin role (for the granted role). * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}. */ 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 `callerConfirmation`. */ function renounceRole(bytes32 role, address callerConfirmation) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.20; import {IERC165} from "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. * * NOTE: ERC-2981 allows setting the royalty to 100% of the price. In that case all the price would be sent to the * royalty receiver and 0 tokens to the seller. Contracts dealing with royalty should consider empty transfers. */ function royaltyInfo( uint256 tokenId, uint256 salePrice ) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC-20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens. */ interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender); } /** * @dev Standard ERC-721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator); } /** * @dev Standard ERC-1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens. */ interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.20; import {IERC721} from "./IERC721.sol"; import {IERC721Metadata} from "./extensions/IERC721Metadata.sol"; import {ERC721Utils} from "./utils/ERC721Utils.sol"; import {Context} from "../../utils/Context.sol"; import {Strings} from "../../utils/Strings.sol"; import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol"; import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC-721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors { using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; mapping(uint256 tokenId => address) private _owners; mapping(address owner => uint256) private _balances; mapping(uint256 tokenId => address) private _tokenApprovals; mapping(address owner => mapping(address operator => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual returns (uint256) { if (owner == address(0)) { revert ERC721InvalidOwner(address(0)); } return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual returns (address) { return _requireOwned(tokenId); } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual returns (string memory) { _requireOwned(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string.concat(baseURI, tokenId.toString()) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual { _approve(to, tokenId, _msgSender()); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual returns (address) { _requireOwned(tokenId); return _getApproved(tokenId); } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom(address from, address to, uint256 tokenId) public virtual { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here. address previousOwner = _update(to, tokenId, _msgSender()); if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId) public { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual { transferFrom(from, to, tokenId); ERC721Utils.checkOnERC721Received(_msgSender(), from, to, tokenId, data); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist * * IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the * core ERC-721 logic MUST be matched with the use of {_increaseBalance} to keep balances * consistent with ownership. The invariant to preserve is that for any address `a` the value returned by * `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`. */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted. */ function _getApproved(uint256 tokenId) internal view virtual returns (address) { return _tokenApprovals[tokenId]; } /** * @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in * particular (ignoring whether it is owned by `owner`). * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) { return spender != address(0) && (owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender); } /** * @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner. * Reverts if: * - `spender` does not have approval from `owner` for `tokenId`. * - `spender` does not have approval to manage all of `owner`'s assets. * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual { if (!_isAuthorized(owner, spender, tokenId)) { if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } else { revert ERC721InsufficientApproval(spender, tokenId); } } } /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that * a uint256 would ever overflow from increments when these increments are bounded to uint128 values. * * WARNING: Increasing an account's balance using this function tends to be paired with an override of the * {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership * remain consistent with one another. */ function _increaseBalance(address account, uint128 value) internal virtual { unchecked { _balances[account] += value; } } /** * @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner * (or `to`) is the zero address. Returns the owner of the `tokenId` before the update. * * The `auth` argument is optional. If the value passed is non 0, then this function will check that * `auth` is either the owner of the token, or approved to operate on the token (by the owner). * * Emits a {Transfer} event. * * NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}. */ function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) { address from = _ownerOf(tokenId); // Perform (optional) operator check if (auth != address(0)) { _checkAuthorized(from, auth, tokenId); } // Execute the update if (from != address(0)) { // Clear approval. No need to re-authorize or emit the Approval event _approve(address(0), tokenId, address(0), false); unchecked { _balances[from] -= 1; } } if (to != address(0)) { unchecked { _balances[to] += 1; } } _owners[tokenId] = to; emit Transfer(from, to, tokenId); return from; } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner != address(0)) { revert ERC721InvalidSender(address(0)); } } /** * @dev Mints `tokenId`, transfers it to `to` and checks for `to` acceptance. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual { _mint(to, tokenId); ERC721Utils.checkOnERC721Received(_msgSender(), address(0), to, tokenId, data); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal { address previousOwner = _update(address(0), tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(tokenId); } } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer(address from, address to, uint256 tokenId) internal { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(tokenId); } else if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients * are aware of the ERC-721 standard to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is like {safeTransferFrom} in the sense that it invokes * {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `tokenId` token must exist and be owned by `from`. * - `to` cannot be the zero address. * - `from` cannot be the zero address. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer(address from, address to, uint256 tokenId) internal { _safeTransfer(from, to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual { _transfer(from, to, tokenId); ERC721Utils.checkOnERC721Received(_msgSender(), from, to, tokenId, data); } /** * @dev Approve `to` to operate on `tokenId` * * The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is * either the owner of the token, or approved to operate on all tokens held by this owner. * * Emits an {Approval} event. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address to, uint256 tokenId, address auth) internal { _approve(to, tokenId, auth, true); } /** * @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not * emitted in the context of transfers. */ function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual { // Avoid reading the owner unless necessary if (emitEvent || auth != address(0)) { address owner = _requireOwned(tokenId); // We do not use _isAuthorized because single-token approvals should not be able to call approve if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) { revert ERC721InvalidApprover(auth); } if (emitEvent) { emit Approval(owner, to, tokenId); } } _tokenApprovals[tokenId] = to; } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Requirements: * - operator can't be the address zero. * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { if (operator == address(0)) { revert ERC721InvalidOperator(operator); } _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned). * Returns the owner. * * Overrides to ownership logic should be done to {_ownerOf}. */ function _requireOwned(uint256 tokenId) internal view returns (address) { address owner = _ownerOf(tokenId); if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } return owner; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC-721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC-721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or * {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the address zero. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.20; /** * @title ERC-721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC-721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be * reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @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 Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol) pragma solidity ^0.8.20; /** * @dev Helper library for emitting standardized panic codes. * * ```solidity * contract Example { * using Panic for uint256; * * // Use any of the declared internal constants * function foo() { Panic.GENERIC.panic(); } * * // Alternatively * function foo() { Panic.panic(Panic.GENERIC); } * } * ``` * * Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil]. * * _Available since v5.1._ */ // slither-disable-next-line unused-state library Panic { /// @dev generic / unspecified error uint256 internal constant GENERIC = 0x00; /// @dev used by the assert() builtin uint256 internal constant ASSERT = 0x01; /// @dev arithmetic underflow or overflow uint256 internal constant UNDER_OVERFLOW = 0x11; /// @dev division or modulo by zero uint256 internal constant DIVISION_BY_ZERO = 0x12; /// @dev enum conversion error uint256 internal constant ENUM_CONVERSION_ERROR = 0x21; /// @dev invalid encoding in storage uint256 internal constant STORAGE_ENCODING_ERROR = 0x22; /// @dev empty array pop uint256 internal constant EMPTY_ARRAY_POP = 0x31; /// @dev array out of bounds access uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32; /// @dev resource error (too large allocation or too large array) uint256 internal constant RESOURCE_ERROR = 0x41; /// @dev calling invalid internal function uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51; /// @dev Reverts with a panic code. Recommended to use with /// the internal constants with predefined codes. function panic(uint256 code) internal pure { assembly ("memory-safe") { mstore(0x00, 0x4e487b71) mstore(0x20, code) revert(0x1c, 0x24) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { bool private _paused; /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); /** * @dev The operation failed because the contract is paused. */ error EnforcedPause(); /** * @dev The operation failed because the contract is not paused. */ error ExpectedPause(); /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { if (paused()) { revert EnforcedPause(); } } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { if (!paused()) { revert ExpectedPause(); } } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; /** * @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 EIP-1153 (transient storage) is available on the chain you're deploying at, * consider using {ReentrancyGuardTransient} instead. * * 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 ReentrancyGuard { // 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; /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); constructor() { _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() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be NOT_ENTERED if (_status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // Any calls to nonReentrant after this point will fail _status = ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.2.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SafeCast} from "./math/SafeCast.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { using SafeCast for *; bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev The string being parsed contains characters that are not in scope of the given base. */ error StringsInvalidChar(); /** * @dev The string being parsed is not a properly formatted address. */ error StringsInvalidAddressFormat(); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; assembly ("memory-safe") { ptr := add(buffer, add(32, length)) } while (true) { ptr--; assembly ("memory-safe") { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; 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_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } 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); } /** * @dev Converts an `address` with fixed length of 20 bytes to its checksummed ASCII `string` hexadecimal * representation, according to EIP-55. */ function toChecksumHexString(address addr) internal pure returns (string memory) { bytes memory buffer = bytes(toHexString(addr)); // hash the hex part of buffer (skip length + 2 bytes, length 40) uint256 hashValue; assembly ("memory-safe") { hashValue := shr(96, keccak256(add(buffer, 0x22), 40)) } for (uint256 i = 41; i > 1; --i) { // possible values for buffer[i] are 48 (0) to 57 (9) and 97 (a) to 102 (f) if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) { // case shift by xoring with 0x20 buffer[i] ^= 0x20; } hashValue >>= 4; } return string(buffer); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } /** * @dev Parse a decimal string and returns the value as a `uint256`. * * Requirements: * - The string must be formatted as `[0-9]*` * - The result must fit into an `uint256` type */ function parseUint(string memory input) internal pure returns (uint256) { return parseUint(input, 0, bytes(input).length); } /** * @dev Variant of {parseUint} that parses a substring of `input` located between position `begin` (included) and * `end` (excluded). * * Requirements: * - The substring must be formatted as `[0-9]*` * - The result must fit into an `uint256` type */ function parseUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) { (bool success, uint256 value) = tryParseUint(input, begin, end); if (!success) revert StringsInvalidChar(); return value; } /** * @dev Variant of {parseUint-string} that returns false if the parsing fails because of an invalid character. * * NOTE: This function will revert if the result does not fit in a `uint256`. */ function tryParseUint(string memory input) internal pure returns (bool success, uint256 value) { return _tryParseUintUncheckedBounds(input, 0, bytes(input).length); } /** * @dev Variant of {parseUint-string-uint256-uint256} that returns false if the parsing fails because of an invalid * character. * * NOTE: This function will revert if the result does not fit in a `uint256`. */ function tryParseUint( string memory input, uint256 begin, uint256 end ) internal pure returns (bool success, uint256 value) { if (end > bytes(input).length || begin > end) return (false, 0); return _tryParseUintUncheckedBounds(input, begin, end); } /** * @dev Implementation of {tryParseUint} that does not check bounds. Caller should make sure that * `begin <= end <= input.length`. Other inputs would result in undefined behavior. */ function _tryParseUintUncheckedBounds( string memory input, uint256 begin, uint256 end ) private pure returns (bool success, uint256 value) { bytes memory buffer = bytes(input); uint256 result = 0; for (uint256 i = begin; i < end; ++i) { uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i))); if (chr > 9) return (false, 0); result *= 10; result += chr; } return (true, result); } /** * @dev Parse a decimal string and returns the value as a `int256`. * * Requirements: * - The string must be formatted as `[-+]?[0-9]*` * - The result must fit in an `int256` type. */ function parseInt(string memory input) internal pure returns (int256) { return parseInt(input, 0, bytes(input).length); } /** * @dev Variant of {parseInt-string} that parses a substring of `input` located between position `begin` (included) and * `end` (excluded). * * Requirements: * - The substring must be formatted as `[-+]?[0-9]*` * - The result must fit in an `int256` type. */ function parseInt(string memory input, uint256 begin, uint256 end) internal pure returns (int256) { (bool success, int256 value) = tryParseInt(input, begin, end); if (!success) revert StringsInvalidChar(); return value; } /** * @dev Variant of {parseInt-string} that returns false if the parsing fails because of an invalid character or if * the result does not fit in a `int256`. * * NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`. */ function tryParseInt(string memory input) internal pure returns (bool success, int256 value) { return _tryParseIntUncheckedBounds(input, 0, bytes(input).length); } uint256 private constant ABS_MIN_INT256 = 2 ** 255; /** * @dev Variant of {parseInt-string-uint256-uint256} that returns false if the parsing fails because of an invalid * character or if the result does not fit in a `int256`. * * NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`. */ function tryParseInt( string memory input, uint256 begin, uint256 end ) internal pure returns (bool success, int256 value) { if (end > bytes(input).length || begin > end) return (false, 0); return _tryParseIntUncheckedBounds(input, begin, end); } /** * @dev Implementation of {tryParseInt} that does not check bounds. Caller should make sure that * `begin <= end <= input.length`. Other inputs would result in undefined behavior. */ function _tryParseIntUncheckedBounds( string memory input, uint256 begin, uint256 end ) private pure returns (bool success, int256 value) { bytes memory buffer = bytes(input); // Check presence of a negative sign. bytes1 sign = begin == end ? bytes1(0) : bytes1(_unsafeReadBytesOffset(buffer, begin)); // don't do out-of-bound (possibly unsafe) read if sub-string is empty bool positiveSign = sign == bytes1("+"); bool negativeSign = sign == bytes1("-"); uint256 offset = (positiveSign || negativeSign).toUint(); (bool absSuccess, uint256 absValue) = tryParseUint(input, begin + offset, end); if (absSuccess && absValue < ABS_MIN_INT256) { return (true, negativeSign ? -int256(absValue) : int256(absValue)); } else if (absSuccess && negativeSign && absValue == ABS_MIN_INT256) { return (true, type(int256).min); } else return (false, 0); } /** * @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as a `uint256`. * * Requirements: * - The string must be formatted as `(0x)?[0-9a-fA-F]*` * - The result must fit in an `uint256` type. */ function parseHexUint(string memory input) internal pure returns (uint256) { return parseHexUint(input, 0, bytes(input).length); } /** * @dev Variant of {parseHexUint} that parses a substring of `input` located between position `begin` (included) and * `end` (excluded). * * Requirements: * - The substring must be formatted as `(0x)?[0-9a-fA-F]*` * - The result must fit in an `uint256` type. */ function parseHexUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) { (bool success, uint256 value) = tryParseHexUint(input, begin, end); if (!success) revert StringsInvalidChar(); return value; } /** * @dev Variant of {parseHexUint-string} that returns false if the parsing fails because of an invalid character. * * NOTE: This function will revert if the result does not fit in a `uint256`. */ function tryParseHexUint(string memory input) internal pure returns (bool success, uint256 value) { return _tryParseHexUintUncheckedBounds(input, 0, bytes(input).length); } /** * @dev Variant of {parseHexUint-string-uint256-uint256} that returns false if the parsing fails because of an * invalid character. * * NOTE: This function will revert if the result does not fit in a `uint256`. */ function tryParseHexUint( string memory input, uint256 begin, uint256 end ) internal pure returns (bool success, uint256 value) { if (end > bytes(input).length || begin > end) return (false, 0); return _tryParseHexUintUncheckedBounds(input, begin, end); } /** * @dev Implementation of {tryParseHexUint} that does not check bounds. Caller should make sure that * `begin <= end <= input.length`. Other inputs would result in undefined behavior. */ function _tryParseHexUintUncheckedBounds( string memory input, uint256 begin, uint256 end ) private pure returns (bool success, uint256 value) { bytes memory buffer = bytes(input); // skip 0x prefix if present bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(buffer, begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty uint256 offset = hasPrefix.toUint() * 2; uint256 result = 0; for (uint256 i = begin + offset; i < end; ++i) { uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i))); if (chr > 15) return (false, 0); result *= 16; unchecked { // Multiplying by 16 is equivalent to a shift of 4 bits (with additional overflow check). // This guaratees that adding a value < 16 will not cause an overflow, hence the unchecked. result += chr; } } return (true, result); } /** * @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as an `address`. * * Requirements: * - The string must be formatted as `(0x)?[0-9a-fA-F]{40}` */ function parseAddress(string memory input) internal pure returns (address) { return parseAddress(input, 0, bytes(input).length); } /** * @dev Variant of {parseAddress} that parses a substring of `input` located between position `begin` (included) and * `end` (excluded). * * Requirements: * - The substring must be formatted as `(0x)?[0-9a-fA-F]{40}` */ function parseAddress(string memory input, uint256 begin, uint256 end) internal pure returns (address) { (bool success, address value) = tryParseAddress(input, begin, end); if (!success) revert StringsInvalidAddressFormat(); return value; } /** * @dev Variant of {parseAddress-string} that returns false if the parsing fails because the input is not a properly * formatted address. See {parseAddress} requirements. */ function tryParseAddress(string memory input) internal pure returns (bool success, address value) { return tryParseAddress(input, 0, bytes(input).length); } /** * @dev Variant of {parseAddress-string-uint256-uint256} that returns false if the parsing fails because input is not a properly * formatted address. See {parseAddress} requirements. */ function tryParseAddress( string memory input, uint256 begin, uint256 end ) internal pure returns (bool success, address value) { if (end > bytes(input).length || begin > end) return (false, address(0)); bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(bytes(input), begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty uint256 expectedLength = 40 + hasPrefix.toUint() * 2; // check that input is the correct length if (end - begin == expectedLength) { // length guarantees that this does not overflow, and value is at most type(uint160).max (bool s, uint256 v) = _tryParseHexUintUncheckedBounds(input, begin, end); return (s, address(uint160(v))); } else { return (false, address(0)); } } function _tryParseChr(bytes1 chr) private pure returns (uint8) { uint8 value = uint8(chr); // Try to parse `chr`: // - Case 1: [0-9] // - Case 2: [a-f] // - Case 3: [A-F] // - otherwise not supported unchecked { if (value > 47 && value < 58) value -= 48; else if (value > 96 && value < 103) value -= 87; else if (value > 64 && value < 71) value -= 55; else return type(uint8).max; } return value; } /** * @dev Reads a bytes32 from a bytes array without bounds checking. * * NOTE: making this function internal would mean it could be used with memory unsafe offset, and marking the * assembly block as such would prevent some optimizations. */ function _unsafeReadBytesOffset(bytes memory buffer, uint256 offset) private pure returns (bytes32 value) { // This is not memory safe in the general case, but all calls to this private function are within bounds. assembly ("memory-safe") { value := mload(add(buffer, add(0x20, offset))) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC-165 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); * } * ``` */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[ERC]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @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[ERC 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol) pragma solidity ^0.8.20; import {Panic} from "../Panic.sol"; import {SafeCast} from "./SafeCast.sol"; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an success flag (no overflow). */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow). */ function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow). */ function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a success flag (no division by zero). */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero). */ function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant. * * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute * one branch when needed, making this function more expensive. */ function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) { unchecked { // branchless ternary works because: // b ^ (a ^ b) == a // b ^ 0 == b return b ^ ((a ^ b) * SafeCast.toUint(condition)); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(a > b, a, b); } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(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 towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. Panic.panic(Panic.DIVISION_BY_ZERO); } // The following calculation ensures accurate ceiling division without overflow. // Since a is non-zero, (a - 1) / b will not overflow. // The largest possible result occurs when (a - 1) / b is type(uint256).max, // but the largest value we can obtain is type(uint256).max - 1, which happens // when a = type(uint256).max and b = 1. unchecked { return SafeCast.toUint(a > 0) * ((a - 1) / b + 1); } } /** * @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * * 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 2²⁵⁶ and mod 2²⁵⁶ - 1, then use // the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2²⁵⁶ + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0. if (denominator <= prod1) { Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW)); } /////////////////////////////////////////////// // 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. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2²⁵⁶ / 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 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such // that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv ≡ 1 mod 2⁴. 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 2⁸ inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶ inverse *= 2 - denominator * inverse; // inverse mod 2³² inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴ inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸ inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶ // 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 2²⁵⁶. Since the preconditions guarantee that the outcome is // less than 2²⁵⁶, 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; } } /** * @dev 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) { return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0); } /** * @dev Calculate the modular multiplicative inverse of a number in Z/nZ. * * If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0. * If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible. * * If the input value is not inversible, 0 is returned. * * NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the * inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}. */ function invMod(uint256 a, uint256 n) internal pure returns (uint256) { unchecked { if (n == 0) return 0; // The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version) // Used to compute integers x and y such that: ax + ny = gcd(a, n). // When the gcd is 1, then the inverse of a modulo n exists and it's x. // ax + ny = 1 // ax = 1 + (-y)n // ax ≡ 1 (mod n) # x is the inverse of a modulo n // If the remainder is 0 the gcd is n right away. uint256 remainder = a % n; uint256 gcd = n; // Therefore the initial coefficients are: // ax + ny = gcd(a, n) = n // 0a + 1n = n int256 x = 0; int256 y = 1; while (remainder != 0) { uint256 quotient = gcd / remainder; (gcd, remainder) = ( // The old remainder is the next gcd to try. remainder, // Compute the next remainder. // Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd // where gcd is at most n (capped to type(uint256).max) gcd - remainder * quotient ); (x, y) = ( // Increment the coefficient of a. y, // Decrement the coefficient of n. // Can overflow, but the result is casted to uint256 so that the // next value of y is "wrapped around" to a value between 0 and n - 1. x - y * int256(quotient) ); } if (gcd != 1) return 0; // No inverse exists. return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative. } } /** * @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`. * * From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is * prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that * `a**(p-2)` is the modular multiplicative inverse of a in Fp. * * NOTE: this function does NOT check that `p` is a prime greater than `2`. */ function invModPrime(uint256 a, uint256 p) internal view returns (uint256) { unchecked { return Math.modExp(a, p - 2, p); } } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m) * * Requirements: * - modulus can't be zero * - underlying staticcall to precompile must succeed * * IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make * sure the chain you're using it on supports the precompiled contract for modular exponentiation * at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, * the underlying function will succeed given the lack of a revert, but the result may be incorrectly * interpreted as 0. */ function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) { (bool success, uint256 result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m). * It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying * to operate modulo 0 or if the underlying precompile reverted. * * IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain * you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in * https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack * of a revert, but the result may be incorrectly interpreted as 0. */ function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) { if (m == 0) return (false, 0); assembly ("memory-safe") { let ptr := mload(0x40) // | Offset | Content | Content (Hex) | // |-----------|------------|--------------------------------------------------------------------| // | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x60:0x7f | value of b | 0x<.............................................................b> | // | 0x80:0x9f | value of e | 0x<.............................................................e> | // | 0xa0:0xbf | value of m | 0x<.............................................................m> | mstore(ptr, 0x20) mstore(add(ptr, 0x20), 0x20) mstore(add(ptr, 0x40), 0x20) mstore(add(ptr, 0x60), b) mstore(add(ptr, 0x80), e) mstore(add(ptr, 0xa0), m) // Given the result < m, it's guaranteed to fit in 32 bytes, // so we can use the memory scratch space located at offset 0. success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20) result := mload(0x00) } } /** * @dev Variant of {modExp} that supports inputs of arbitrary length. */ function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) { (bool success, bytes memory result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Variant of {tryModExp} that supports inputs of arbitrary length. */ function tryModExp( bytes memory b, bytes memory e, bytes memory m ) internal view returns (bool success, bytes memory result) { if (_zeroBytes(m)) return (false, new bytes(0)); uint256 mLen = m.length; // Encode call args in result and move the free memory pointer result = abi.encodePacked(b.length, e.length, mLen, b, e, m); assembly ("memory-safe") { let dataPtr := add(result, 0x20) // Write result on top of args to avoid allocating extra memory. success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen) // Overwrite the length. // result.length > returndatasize() is guaranteed because returndatasize() == m.length mstore(result, mLen) // Set the memory pointer after the returned data. mstore(0x40, add(dataPtr, mLen)) } } /** * @dev Returns whether the provided byte array is zero. */ function _zeroBytes(bytes memory byteArray) private pure returns (bool) { for (uint256 i = 0; i < byteArray.length; ++i) { if (byteArray[i] != 0) { return false; } } return true; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * This method is based on Newton's method for computing square roots; the algorithm is restricted to only * using integer operations. */ function sqrt(uint256 a) internal pure returns (uint256) { unchecked { // Take care of easy edge cases when a == 0 or a == 1 if (a <= 1) { return a; } // In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a // sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between // the current value as `ε_n = | x_n - sqrt(a) |`. // // For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root // of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is // bigger than any uint256. // // By noticing that // `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)` // we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar // to the msb function. uint256 aa = a; uint256 xn = 1; if (aa >= (1 << 128)) { aa >>= 128; xn <<= 64; } if (aa >= (1 << 64)) { aa >>= 64; xn <<= 32; } if (aa >= (1 << 32)) { aa >>= 32; xn <<= 16; } if (aa >= (1 << 16)) { aa >>= 16; xn <<= 8; } if (aa >= (1 << 8)) { aa >>= 8; xn <<= 4; } if (aa >= (1 << 4)) { aa >>= 4; xn <<= 2; } if (aa >= (1 << 2)) { xn <<= 1; } // We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1). // // We can refine our estimation by noticing that the middle of that interval minimizes the error. // If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2). // This is going to be our x_0 (and ε_0) xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2) // From here, Newton's method give us: // x_{n+1} = (x_n + a / x_n) / 2 // // One should note that: // x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a // = ((x_n² + a) / (2 * x_n))² - a // = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a // = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²) // = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²) // = (x_n² - a)² / (2 * x_n)² // = ((x_n² - a) / (2 * x_n))² // ≥ 0 // Which proves that for all n ≥ 1, sqrt(a) ≤ x_n // // This gives us the proof of quadratic convergence of the sequence: // ε_{n+1} = | x_{n+1} - sqrt(a) | // = | (x_n + a / x_n) / 2 - sqrt(a) | // = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) | // = | (x_n - sqrt(a))² / (2 * x_n) | // = | ε_n² / (2 * x_n) | // = ε_n² / | (2 * x_n) | // // For the first iteration, we have a special case where x_0 is known: // ε_1 = ε_0² / | (2 * x_0) | // ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2))) // ≤ 2**(2*e-4) / (3 * 2**(e-1)) // ≤ 2**(e-3) / 3 // ≤ 2**(e-3-log2(3)) // ≤ 2**(e-4.5) // // For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n: // ε_{n+1} = ε_n² / | (2 * x_n) | // ≤ (2**(e-k))² / (2 * 2**(e-1)) // ≤ 2**(2*e-2*k) / 2**e // ≤ 2**(e-2*k) xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5 xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9 xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18 xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36 xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72 // Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision // ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either // sqrt(a) or sqrt(a) + 1. return xn - SafeCast.toUint(xn > a / xn); } } /** * @dev Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 exp; unchecked { exp = 128 * SafeCast.toUint(value > (1 << 128) - 1); value >>= exp; result += exp; exp = 64 * SafeCast.toUint(value > (1 << 64) - 1); value >>= exp; result += exp; exp = 32 * SafeCast.toUint(value > (1 << 32) - 1); value >>= exp; result += exp; exp = 16 * SafeCast.toUint(value > (1 << 16) - 1); value >>= exp; result += exp; exp = 8 * SafeCast.toUint(value > (1 << 8) - 1); value >>= exp; result += exp; exp = 4 * SafeCast.toUint(value > (1 << 4) - 1); value >>= exp; result += exp; exp = 2 * SafeCast.toUint(value > (1 << 2) - 1); value >>= exp; result += exp; result += SafeCast.toUint(value > 1); } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 isGt; unchecked { isGt = SafeCast.toUint(value > (1 << 128) - 1); value >>= isGt * 128; result += isGt * 16; isGt = SafeCast.toUint(value > (1 << 64) - 1); value >>= isGt * 64; result += isGt * 8; isGt = SafeCast.toUint(value > (1 << 32) - 1); value >>= isGt * 32; result += isGt * 4; isGt = SafeCast.toUint(value > (1 << 16) - 1); value >>= isGt * 16; result += isGt * 2; result += SafeCast.toUint(value > (1 << 8) - 1); } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.20; /** * @dev Wrappers over Solidity's uintXX/intXX/bool 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. */ library SafeCast { /** * @dev Value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev An int value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedIntToUint(int256 value); /** * @dev Value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedIntDowncast(uint8 bits, int256 value); /** * @dev An uint value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedUintToInt(uint256 value); /** * @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 */ function toUint248(uint256 value) internal pure returns (uint248) { if (value > type(uint248).max) { revert SafeCastOverflowedUintDowncast(248, value); } 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 */ function toUint240(uint256 value) internal pure returns (uint240) { if (value > type(uint240).max) { revert SafeCastOverflowedUintDowncast(240, value); } 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 */ function toUint232(uint256 value) internal pure returns (uint232) { if (value > type(uint232).max) { revert SafeCastOverflowedUintDowncast(232, value); } 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 */ function toUint224(uint256 value) internal pure returns (uint224) { if (value > type(uint224).max) { revert SafeCastOverflowedUintDowncast(224, value); } 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 */ function toUint216(uint256 value) internal pure returns (uint216) { if (value > type(uint216).max) { revert SafeCastOverflowedUintDowncast(216, value); } 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 */ function toUint208(uint256 value) internal pure returns (uint208) { if (value > type(uint208).max) { revert SafeCastOverflowedUintDowncast(208, value); } 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 */ function toUint200(uint256 value) internal pure returns (uint200) { if (value > type(uint200).max) { revert SafeCastOverflowedUintDowncast(200, value); } 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 */ function toUint192(uint256 value) internal pure returns (uint192) { if (value > type(uint192).max) { revert SafeCastOverflowedUintDowncast(192, value); } 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 */ function toUint184(uint256 value) internal pure returns (uint184) { if (value > type(uint184).max) { revert SafeCastOverflowedUintDowncast(184, value); } 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 */ function toUint176(uint256 value) internal pure returns (uint176) { if (value > type(uint176).max) { revert SafeCastOverflowedUintDowncast(176, value); } 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 */ function toUint168(uint256 value) internal pure returns (uint168) { if (value > type(uint168).max) { revert SafeCastOverflowedUintDowncast(168, value); } 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 */ function toUint160(uint256 value) internal pure returns (uint160) { if (value > type(uint160).max) { revert SafeCastOverflowedUintDowncast(160, value); } 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 */ function toUint152(uint256 value) internal pure returns (uint152) { if (value > type(uint152).max) { revert SafeCastOverflowedUintDowncast(152, value); } 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 */ function toUint144(uint256 value) internal pure returns (uint144) { if (value > type(uint144).max) { revert SafeCastOverflowedUintDowncast(144, value); } 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 */ function toUint136(uint256 value) internal pure returns (uint136) { if (value > type(uint136).max) { revert SafeCastOverflowedUintDowncast(136, value); } 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 */ function toUint128(uint256 value) internal pure returns (uint128) { if (value > type(uint128).max) { revert SafeCastOverflowedUintDowncast(128, value); } 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 */ function toUint120(uint256 value) internal pure returns (uint120) { if (value > type(uint120).max) { revert SafeCastOverflowedUintDowncast(120, value); } 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 */ function toUint112(uint256 value) internal pure returns (uint112) { if (value > type(uint112).max) { revert SafeCastOverflowedUintDowncast(112, value); } 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 */ function toUint104(uint256 value) internal pure returns (uint104) { if (value > type(uint104).max) { revert SafeCastOverflowedUintDowncast(104, value); } 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 */ function toUint96(uint256 value) internal pure returns (uint96) { if (value > type(uint96).max) { revert SafeCastOverflowedUintDowncast(96, value); } 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 */ function toUint88(uint256 value) internal pure returns (uint88) { if (value > type(uint88).max) { revert SafeCastOverflowedUintDowncast(88, value); } 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 */ function toUint80(uint256 value) internal pure returns (uint80) { if (value > type(uint80).max) { revert SafeCastOverflowedUintDowncast(80, value); } 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 */ function toUint72(uint256 value) internal pure returns (uint72) { if (value > type(uint72).max) { revert SafeCastOverflowedUintDowncast(72, value); } 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 */ function toUint64(uint256 value) internal pure returns (uint64) { if (value > type(uint64).max) { revert SafeCastOverflowedUintDowncast(64, value); } 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 */ function toUint56(uint256 value) internal pure returns (uint56) { if (value > type(uint56).max) { revert SafeCastOverflowedUintDowncast(56, value); } 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 */ function toUint48(uint256 value) internal pure returns (uint48) { if (value > type(uint48).max) { revert SafeCastOverflowedUintDowncast(48, value); } 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 */ function toUint40(uint256 value) internal pure returns (uint40) { if (value > type(uint40).max) { revert SafeCastOverflowedUintDowncast(40, value); } 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 */ function toUint32(uint256 value) internal pure returns (uint32) { if (value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, value); } 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 */ function toUint24(uint256 value) internal pure returns (uint24) { if (value > type(uint24).max) { revert SafeCastOverflowedUintDowncast(24, value); } 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 */ function toUint16(uint256 value) internal pure returns (uint16) { if (value > type(uint16).max) { revert SafeCastOverflowedUintDowncast(16, value); } 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 */ function toUint8(uint256 value) internal pure returns (uint8) { if (value > type(uint8).max) { revert SafeCastOverflowedUintDowncast(8, value); } return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. */ function toUint256(int256 value) internal pure returns (uint256) { if (value < 0) { revert SafeCastOverflowedIntToUint(value); } 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 */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(248, 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 */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(240, 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 */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(232, 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 */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(224, 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 */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(216, 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 */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(208, 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 */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(200, 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 */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(192, 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 */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(184, 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 */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(176, 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 */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(168, 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 */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(160, 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 */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(152, 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 */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(144, 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 */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(136, 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 */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(128, 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 */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(120, 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 */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(112, 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 */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(104, 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 */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(96, 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 */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(88, 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 */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(80, 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 */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(72, 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 */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(64, 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 */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(56, 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 */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(48, 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 */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(40, 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 */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(32, 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 */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(24, 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 */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(16, 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 */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(8, value); } } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive if (value > uint256(type(int256).max)) { revert SafeCastOverflowedUintToInt(value); } return int256(value); } /** * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump. */ function toUint(bool b) internal pure returns (uint256 u) { assembly ("memory-safe") { u := iszero(iszero(b)) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; import {SafeCast} from "./SafeCast.sol"; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant. * * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute * one branch when needed, making this function more expensive. */ function ternary(bool condition, int256 a, int256 b) internal pure returns (int256) { unchecked { // branchless ternary works because: // b ^ (a ^ b) == a // b ^ 0 == b return b ^ ((a ^ b) * int256(SafeCast.toUint(condition))); } } /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return ternary(a > b, a, b); } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return ternary(a < b, a, b); } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // Formula from the "Bit Twiddling Hacks" by Sean Eron Anderson. // Since `n` is a signed integer, the generated bytecode will use the SAR opcode to perform the right shift, // taking advantage of the most significant (or "sign" bit) in two's complement representation. // This opcode adds new most significant bits set to the value of the previous most significant bit. As a result, // the mask will either be `bytes32(0)` (if n is positive) or `~bytes32(0)` (if n is negative). int256 mask = n >> 255; // A `bytes32(0)` mask leaves the input unchanged, while a `~bytes32(0)` mask complements it. return uint256((n + mask) ^ mask); } } }
{ "evmVersion": "paris", "libraries": {}, "optimizer": { "enabled": true, "runs": 500 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "viaIR": true }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"_oldContract","type":"address"},{"internalType":"address","name":"_frogsBackdrop","type":"address"},{"internalType":"address","name":"_frogsOneOfOne","type":"address"},{"internalType":"address","name":"_frogsBody","type":"address"},{"internalType":"address","name":"_frogsHats","type":"address"},{"internalType":"address","name":"_frogsEyesA","type":"address"},{"internalType":"address","name":"_frogsEyesB","type":"address"},{"internalType":"address","name":"_frogsMouth","type":"address"},{"internalType":"address","name":"_frogsFeet","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AccessControlBadConfirmation","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes32","name":"neededRole","type":"bytes32"}],"name":"AccessControlUnauthorizedAccount","type":"error"},{"inputs":[],"name":"BatchSizeToLarge","type":"error"},{"inputs":[{"internalType":"uint256","name":"numerator","type":"uint256"},{"internalType":"uint256","name":"denominator","type":"uint256"}],"name":"ERC2981InvalidDefaultRoyalty","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC2981InvalidDefaultRoyaltyReceiver","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"numerator","type":"uint256"},{"internalType":"uint256","name":"denominator","type":"uint256"}],"name":"ERC2981InvalidTokenRoyalty","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC2981InvalidTokenRoyaltyReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721IncorrectOwner","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721InsufficientApproval","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC721InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"ERC721InvalidOperator","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721InvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC721InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC721InvalidSender","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721NonexistentToken","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"NoTokenIDsProvided","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"actual","type":"address"},{"internalType":"address","name":"sender","type":"address"}],"name":"NotOwnerOfOldNFT","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenAlreadyMigrated","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenNotMigratedYet","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"actualOwner","type":"address"}],"name":"DebugOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"migrationBatch","type":"uint256"}],"name":"TokenMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"address","name":"recipient","type":"address"}],"name":"adminMigrate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"batchClaim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"buildSVG","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"checkMigrationStatus","outputs":[{"internalType":"bool[]","name":"statuses","type":"bool[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"claimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsBackdrop","outputs":[{"internalType":"contract IFrogsBackdrop","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsBody","outputs":[{"internalType":"contract IFrogsBody","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsEyesA","outputs":[{"internalType":"contract IFrogsEyesA","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsEyesB","outputs":[{"internalType":"contract IFrogsEyesB","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsFeet","outputs":[{"internalType":"contract IFrogsFeet","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsHats","outputs":[{"internalType":"contract IFrogsHats","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsMouth","outputs":[{"internalType":"contract IFrogsMouth","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"frogsOneOfOne","outputs":[{"internalType":"contract IFrogsOneOfOne","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"markAsMigrated","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oldContract","outputs":[{"internalType":"contract IHyperFrogs","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenTraits","outputs":[{"internalType":"bool","name":"oneOfOne","type":"bool"},{"internalType":"uint256","name":"oneOfOneIndex","type":"uint256"},{"internalType":"uint256","name":"backdrop","type":"uint256"},{"internalType":"uint256","name":"hat","type":"uint256"},{"internalType":"uint256","name":"eyesIndex","type":"uint256"},{"internalType":"bool","name":"eyesIsA","type":"bool"},{"internalType":"uint256","name":"mouth","type":"uint256"},{"internalType":"uint256","name":"body","type":"uint256"},{"internalType":"uint256","name":"feet","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalMigrated","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
0x608080604052600436101561001357600080fd5b60003560e01c90816301ffc9a7146117e95750806306fdde031461172e578063081812fc146116ef578063095ea7b3146115f957806323b872dd146115e2578063248a9ca3146115ad5780632a55205a1461150a5780632c3f9afd146114e35780632f2ff15d146114a357806330503c4e1461147c57806332b7e8e61461145557806336568abe1461140f5780633e53eb28146113f05780633f4ba83a146113875780633f9d55f01461136057806342842e0e1461133057806350fadca8146110cc5780635c975abb146110a95780636352211e1461107a57806370a08231146110245780638456cb5914610fca5780638fdd2ee514610f5957806391d1485414610f0b5780639312afa114610ee457806395a0f5eb14610ec657806395d89b4114610dce578063a217fddf14610db2578063a22cb46514610d08578063a6c377ef14610ce1578063a882efd814610cba578063adb5f7e114610c93578063b88d4fde14610bfe578063bc292782146107e4578063c82cac1c146107bd578063c87b56dd1461044c578063d1ae3e2b1461033f578063d547741f146102f8578063dbe7e3bd146102c7578063e05c57bf146102395763e985e9c5146101d757600080fd5b34610234576040366003190112610234576101f06118b4565b6001600160a01b036102006118ca565b911660005260056020526001600160a01b0360406000209116600052602052602060ff604060002054166040519015158152f35b600080fd5b3461023457602036600319011261023457600435600052600e602052610120604060002060ff8154169060018101549060028101546003820154600483015460ff60058501541691600685015493600860078701549601549660405198151589526020890152604088015260608701526080860152151560a085015260c084015260e0830152610100820152f35b3461023457602036600319011261023457600435600052600d602052602060ff604060002054166040519015158152f35b346102345760403660031901126102345761033d6004356103176118ca565b9061033861033382600052600660205260016040600020015490565b6125e2565b6126c3565b005b346102345760203660031901126102345760043567ffffffffffffffff81116102345761037090369060040161191a565b9061037a826124d3565b90610388604051928361197e565b828252610394836124d3565b602083019390601f190136853760005b8181106103f3575050506040519182916020830190602084525180915260408301919060005b8181106103d8575050500390f35b825115158452859450602093840193909201916001016103ca565b610401818385969795612458565b35600052600d60205260ff6040600020541690855181101561043657600191151560208260051b8801015201939291936103a4565b634e487b7160e01b600052603260045260246000fd5b346102345760203660031901126102345760043561047161046c82611c64565b612b8d565b60009082807a184f03e93ff9f4daa797ed6e38ed64bf6a1f010000000000000000811015610795575b806d04ee2d6d415b85acef8100000000600a92101561077a575b662386f26fc10000811015610766575b6305f5e100811015610755575b612710811015610746575b6064811015610738575b101561072d575b600a60216104fd60018601612bf4565b948501015b60001901917f30313233343536373839616263646566000000000000000000000000000000008282061a83530490811561053e57600a90610502565b6107296106c18461046c6002602689606d6105588d612c26565b9560366040519788947f7b226e616d65223a202248797065722046726f67202300000000000000000000602087015261059a815180926020868a01910161186c565b850161088b60f21b838201527f226465736372697074696f6e223a202248797065722046726f6773206172652060388201527f70757265204153434949206172742066726f677320616e64206c69766520313060588201527f3025206f6e636861696e206f6e2048797065726c69717569642e222c0000000060788201527f2261747472696275746573223a205b0000000000000000000000000000000000609482015261065282518093602060a38501910161186c565b010161174b60f21b838201527f22696d616765223a2022646174613a696d6167652f7376672b786d6c3b626173606f82015263194d8d0b60e21b608f8201526106a582518093602060938501910161186c565b010161227d60f01b838201520301601d1981018452018261197e565b610715603d60405180937f646174613a6170706c69636174696f6e2f6a736f6e3b6261736536342c0000006020830152610704815180926020868601910161186c565b81010301601f19810183528261197e565b60405191829160208352602083019061188f565b0390f35b6001909201916104ed565b6064600291049401936104e6565b612710600491049401936104dc565b6305f5e100600891049401936104d1565b662386f26fc10000601091049401936104c4565b6d04ee2d6d415b85acef8100000000602091049401936104b4565b50604092507a184f03e93ff9f4daa797ed6e38ed64bf6a1f010000000000000000840461049a565b346102345760003660031901126102345760206001600160a01b03600f5416604051908152f35b346102345760203660031901126102345760043567ffffffffffffffff81116102345761081590369060040161191a565b9061081e612b70565b600260085414610bed576002600855600b54918015610bdc5760148111610bcb5760005b818110610850576001600855005b61085b818385612458565b359081600052600d60205260ff60406000205416610bb6576001600160a01b03600c54166040516331a9108f60e11b8152836004820152602081602481855afa908115610ade57600091610b67575b506001600160a01b0316338103610b4b57506101206024916040519283809263e05c57bf60e01b82528760048301525afa8015610ade57600090818283848591869387958897610b03575b6008989950906109a5949392916040519a61090f8c61194b565b15158b5260208b0190815260408b0191825260608b0192835260808b0193845260a08b01941515855260c08b0196875260e08b019788526101008b019889528c600052600e60205261097560406000209b5115158c9060ff801983541691151516179055565b5160018b01555160028a0155516003890155516004880155511515600587019060ff801983541691151516179055565b516006850155516007840155519101556109bf8233612824565b81600052600d6020526040600020600160ff198254161790556109e3600b546124c4565b600b55816040518681527ff514c4806c74fdbf9c0a2f2da65792b2e34a9384d0285d4a211dd5dab9af9d6360203392a36001600160a01b03600c5416803b156102345760008091602460405180948193630852cd8d60e31b83528860048401525af19081610af2575b50610aea576001600160a01b03600c541691823b1561023457600080936064604051809681936323b872dd60e01b83523360048401528060248401528660448401525af1928315610ade57600193610acd575b505b337fe30a28750cac72ac01f8b35589582c826b166086b59d0a6ffb19965110b90a94600080a301610842565b6000610ad89161197e565b86610a9f565b6040513d6000823e3d90fd5b600191610aa1565b6000610afd9161197e565b86610a4c565b5050505050505050506008610b326109a5926101203d8111610b44575b610b2a818361197e565b810190612475565b979950899850959094919391906108f5565b503d610b20565b8363215e156760e21b6000526004526024523360445260646000fd5b6020813d8211610bae575b81610b7f6020938361197e565b81010312610baa5751906001600160a01b0382168203610ba757506001600160a01b036108aa565b80fd5b5080fd5b3d9150610b72565b50636c3903c760e11b60005260045260246000fd5b63548f213760e01b60005260046000fd5b63ceb7371d60e01b60005260046000fd5b633ee5aeb560e01b60005260046000fd5b3461023457608036600319011261023457610c176118b4565b610c1f6118ca565b906044356064359267ffffffffffffffff8411610234573660238501121561023457836004013592610c50846119a0565b93610c5e604051958661197e565b808552366024828801011161023457602081600092602461033d99018389013786010152610c8d8383836119bc565b33612a48565b346102345760003660031901126102345760206001600160a01b0360155416604051908152f35b346102345760003660031901126102345760206001600160a01b0360135416604051908152f35b346102345760003660031901126102345760206001600160a01b0360115416604051908152f35b3461023457604036600319011261023457610d216118b4565b6024359081151590818303610234576001600160a01b0316918215610d9d57610d6f9033600052600560205260406000208460005260205260406000209060ff801983541691151516179055565b6040519081527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c3160203392a3005b82630b61174360e31b60005260045260246000fd5b3461023457600036600319011261023457602060405160008152f35b346102345760003660031901126102345760405160006001548060011c90600181168015610ebc575b602083108114610ea857828552908115610e845750600114610e24575b610729836107158185038261197e565b91905060016000527fb10e2d527612073b26eecdfd717e6a320cf44b4afac2b0732d9fcbe2b7fa0cf6916000905b808210610e6a57509091508101602001610715610e14565b919260018160209254838588010152019101909291610e52565b60ff191660208086019190915291151560051b840190910191506107159050610e14565b634e487b7160e01b84526022600452602484fd5b91607f1691610df7565b34610234576000366003190112610234576020600b54604051908152f35b346102345760003660031901126102345760206001600160a01b0360105416604051908152f35b3461023457604036600319011261023457610f246118ca565b60043560005260066020526001600160a01b0360406000209116600052602052602060ff604060002054166040519015158152f35b346102345760203660031901126102345760043567ffffffffffffffff811161023457610f8a90369060040161191a565b610f9261258f565b60005b818110610f9e57005b80610fac6001928486612458565b35600052600d60205260406000208260ff1982541617905501610f95565b3461023457600036600319011261023457610fe361258f565b610feb612b70565b600160ff1960075416176007557f62e78cea01bee320cd4e420270b5ea74000d11b0c9f74754ebdbfc544b05a2586020604051338152a1005b34610234576020366003190112610234576001600160a01b036110456118b4565b1680156110645760005260036020526020604060002054604051908152f35b6322718ad960e21b600052600060045260246000fd5b34610234576020366003190112610234576020611098600435612558565b6001600160a01b0360405191168152f35b3461023457600036600319011261023457602060ff600754166040519015158152f35b346102345760403660031901126102345760043567ffffffffffffffff8111610234576110fd90369060040161191a565b906111066118ca565b9161110f61258f565b6001600160a01b0383169060005b81811061112657005b611131818386612458565b359081600052600d60205260ff604060002054166112eb576024916101206001600160a01b03600c54166040519485809263e05c57bf60e01b82528560048301525afa928315610ade576001936000908182838485918693879588976112b3575b600898995090611241949392916040519a6111ac8c61194b565b15158b5260208b0190815260408b0191825260608b0192835260808b0193845260a08b01941515855260c08b0196875260e08b019788526101008b019889528b600052600e60205261121260406000209b5115158c9060ff801983541691151516179055565b518d8b01555160028a0155516003890155516004880155511515600587019060ff801983541691151516179055565b5160068501555160078401555191015561125b8188612824565b80600052600d60205260406000208360ff19825416179055847ff514c4806c74fdbf9c0a2f2da65792b2e34a9384d0285d4a211dd5dab9af9d6360206112a2600b546124c4565b80600b55604051908152a30161111d565b50505050505050505060086112d9611241926101203d8111610b4457610b2a818361197e565b97995089985095909491939190611192565b60405162461bcd60e51b815260206004820152601660248201527f546f6b656e20616c7265616479206d69677261746564000000000000000000006044820152606490fd5b346102345761033d611341366118e0565b906040519261135160208561197e565b60008452610c8d8383836119bc565b346102345760003660031901126102345760206001600160a01b0360145416604051908152f35b34610234576000366003190112610234576113a061258f565b60075460ff8116156113df5760ff19166007557f5db9ee0a495bf2e6ff9c91a7834c1ba4fdd244a5e8aa4e537bd38aeae4b073aa6020604051338152a1005b638dfc202b60e01b60005260046000fd5b3461023457602036600319011261023457610729610715600435611c64565b34610234576040366003190112610234576114286118ca565b336001600160a01b038216036114445761033d906004356126c3565b63334bd91960e11b60005260046000fd5b346102345760003660031901126102345760206001600160a01b0360165416604051908152f35b346102345760003660031901126102345760206001600160a01b03600c5416604051908152f35b346102345760403660031901126102345761033d6004356114c26118ca565b906114de61033382600052600660205260016040600020015490565b612629565b346102345760003660031901126102345760206001600160a01b0360125416604051908152f35b3461023457604036600319011261023457602435600435600052600a6020526040600020546001600160a01b0381169060a01c8115611595575b6bffffffffffffffffffffffff169182810292818404149015171561157f57612710604092046001600160a01b038351921682526020820152f35b634e487b7160e01b600052601160045260246000fd5b50506009546001600160a01b0381169060a01c611544565b346102345760203660031901126102345760206115da600435600052600660205260016040600020015490565b604051908152f35b346102345761033d6115f3366118e0565b916119bc565b34610234576040366003190112610234576116126118b4565b60243561161e81612558565b331515806116dc575b806116a5575b6116905781906001600160a01b0380851691167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925600080a460005260046020526001600160a01b03604060002091166001600160a01b0319825416179055600080f35b63a9fbf51f60e01b6000523360045260246000fd5b506001600160a01b038116600052600560205260406000206001600160a01b03331660005260205260ff604060002054161561162d565b50336001600160a01b0382161415611627565b346102345760203660031901126102345760043561170c81612558565b50600052600460205260206001600160a01b0360406000205416604051908152f35b3461023457600036600319011261023457604051600080548060011c906001811680156117df575b602083108114610ea857828552908115610e84575060011461178257610729836107158185038261197e565b60008080527f290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563939250905b8082106117c557509091508101602001610715610e14565b9192600181602092548385880101520191019092916117ad565b91607f1691611756565b3461023457602036600319011261023457600435906001600160e01b03198216808303610234578261181c6020946124eb565b918215611843575b508115611833575b5015158152f35b61183d915061252f565b8361182c565b90915063152a902d60e11b14801561185d575b9084611824565b506118678161252f565b611856565b60005b83811061187f5750506000910152565b818101518382015260200161186f565b906020916118a88151809281855285808601910161186c565b601f01601f1916010190565b600435906001600160a01b038216820361023457565b602435906001600160a01b038216820361023457565b6060906003190112610234576004356001600160a01b038116810361023457906024356001600160a01b0381168103610234579060443590565b9181601f840112156102345782359167ffffffffffffffff8311610234576020808501948460051b01011161023457565b610120810190811067ffffffffffffffff82111761196857604052565b634e487b7160e01b600052604160045260246000fd5b90601f8019910116810190811067ffffffffffffffff82111761196857604052565b67ffffffffffffffff811161196857601f01601f191660200190565b91906001600160a01b0316918215611b51576000908282526002602052826001600160a01b03604084205416948533151580611aaf575b507fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef6001600160a01b039582611a75575b8381526003602052604081206001815401905584815260026020526040812084881982541617905580a416808303611a5b57505050565b6364283d7b60e01b60005260045260245260445260646000fd5b611a9685600052600460205260406000206001600160a01b03198154169055565b8281526003602052604081208054600019019055611a24565b91939492505080611afa575b15611acb579190839085386119f3565b839085611ae457602491637e27328960e01b8252600452fd5b60449163177e802f60e01b825233600452602452fd5b503385148015611b28575b80611abb57508381526004602052336001600160a01b0360408320541614611abb565b508481526005602052604081206001600160a01b033316825260205260ff604082205416611b05565b633250574960e11b600052600060045260246000fd5b6020818303126102345780519067ffffffffffffffff8211610234570181601f820112156102345760208151910190611b9f816119a0565b92611bad604051948561197e565b8184528183011161023457611bc691602084019061186c565b90565b7f3c73766720786d6c6e733d22687474703a2f2f7777772e77332e6f72672f323081527f30302f737667222076696577426f783d2230203020393020393022207368617060208201527f652d72656e646572696e673d2263726973704564676573222077696474683d2260408201527f35313222206865696768743d22353132223e0000000000000000000000000000606082015260720190565b80600052600d60205260ff604060002054161561244457600052600e6020526040600020604051611c948161194b565b60ff8254161515808252600183015491602081019283526002840154916040820193838552600386015493606084019485526004870154906080850191825260ff6005890154169260a08601931515845260068901549460c08701958652610100600860078c01549b60e08a019c8d52015497019687526121a05750506001600160a01b03600f541696865196604051976336a3880960e11b895260048901526000886024818c5afa978815610ade57600098612181575b50600090516024604051809b81936336a3880960e11b835260048301525afa978815610ade57600098612164575b5060006001600160a01b0360115416915160246040518094819363db5cc18160e01b835260048301525afa8015610ade57611dbd916000916120d7575b50612752565b9460006001600160a01b03601254169151602460405180948193630c0a76ed60e41b835260048301525afa8015610ade57611dff916000916120d75750612752565b9151600090156120fa575060006001600160a01b03601354169151602460405180948193633d04ca4360e11b835260048301525afa8015610ade57611e4b916000916120d75750612752565b9160006001600160a01b0360155416915160246040518094819363f708887760e01b835260048301525afa8015610ade57611e8d916000916120d75750612752565b9260006001600160a01b0360165416915160246040518094819363c8e1f0e560e01b835260048301525afa8015610ade57611ecf916000916120d75750612752565b9360405196879660208801611ee390611bc9565b661e39ba3cb6329f60c91b815264737667207b60d81b60078201526b77696474683a20313030253b60a01b600c8201526c6865696768743a20313030253b60981b6018820152696d617267696e3a20303b60b01b60258201526a70616464696e673a20303b60a81b602f820152706f766572666c6f773a2068696464656e3b60781b603a8201526d646973706c61793a20666c65783b60901b604b8201527f6a7573746966792d636f6e74656e743a2063656e7465723b000000000000000060598201526a3130b1b5b3b937bab7321d60a91b6071820152815191611fd1908390607c84019060200161186c565b603b60f81b607c9290910191820152607d60f81b607d820152671e17b9ba3cb6329f60c11b607e8201527f3c726563742077696474683d22393022206865696768743d223930222066696c608682015262361e9160e91b60a682015260a9018082516020819401916120429261186c565b016211179f60e91b8152815191826003830191602001916120629261186c565b01815191826003830191602001916120799261186c565b0160030180825160208194019161208f9261186c565b018082516020819401916120a29261186c565b018082516020819401916120b59261186c565b01651e17b9bb339f60d11b81520360191981018252600601611bc6908261197e565b6120f491503d806000833e6120ec818361197e565b810190611b67565b38611db7565b90816001600160a01b0360145416915160246040518094819363093a2e0160e41b835260048301525afa918215612158579081611e4b9361213d575b5050612752565b61215192503d8091833e6120ec818361197e565b3880612136565b604051903d90823e3d90fd5b61217a9198503d806000833e6120ec818361197e565b9638611d7a565b6000919850612199903d8084833e6120ec818361197e565b9790611d4c565b95509650505050506001600160a01b03600f541691604051936336a3880960e11b85526004850152600084602481865afa938415610ade57600094612425575b50600090516024604051809581936336a3880960e11b835260048301525afa918215610ade57600092612408575b5060006001600160a01b0360105416915160246040518094819363d4c4205f60e01b835260048301525afa908115610ade57608693611bc693602061225f6006956003956000916120d75750612752565b916123cc6123bf604051998a96612277868901611bc9565b661e39ba3cb6329f60c91b815264737667207b60d81b60078201526b77696474683a20313030253b60a01b600c8201526c6865696768743a20313030253b60981b6018820152696d617267696e3a20303b60b01b60258201526a70616464696e673a20303b60a81b602f820152706f766572666c6f773a2068696464656e3b60781b603a8201526d646973706c61793a20666c65783b60901b604b8201527f6a7573746966792d636f6e74656e743a2063656e7465723b000000000000000060598201526a3130b1b5b3b937bab7321d60a91b60718201526123628251809389607c8501910161186c565b01603b60f81b607c820152607d60f81b607d820152671e17b9ba3cb6329f60c11b607e820152016023907f3c726563742077696474683d22393022206865696768743d223930222066696c815262361e9160e91b60208201520190565b918281519485920161186c565b016211179f60e91b81526123e9825180936020878501910161186c565b01651e17b9bb339f60d11b83820152030160191981018452018261197e565b61241e9192503d806000833e6120ec818361197e565b903861220e565b600091945061243d903d8084833e6120ec818361197e565b93906121e0565b6322b07ae160e11b60005260045260246000fd5b91908110156104365760051b0190565b5190811515820361023457565b90816101209103126102345761248a81612468565b916020820151916040810151916060820151916080810151916124af60a08301612468565b9160c08101519161010060e083015192015190565b600019811461157f5760010190565b67ffffffffffffffff81116119685760051b60200190565b63ffffffff60e01b166380ac58cd60e01b811490811561251e575b8115612510575090565b6301ffc9a760e01b14919050565b635b5e139f60e01b81149150612506565b6001600160e01b03198116637965db0b60e01b1490811561254e575090565b611bc691506124eb565b8060005260026020526001600160a01b036040600020541690811561257b575090565b637e27328960e01b60005260045260246000fd5b3360009081527f54cdd369e4e8a8515e52ca72ec816c2101831ad1f18bf44102ed171459c9b4f8602052604090205460ff16156125c857565b63e2517d3f60e01b60005233600452600060245260446000fd5b80600052600660205260406000206001600160a01b03331660005260205260ff60406000205416156126115750565b63e2517d3f60e01b6000523360045260245260446000fd5b80600052600660205260406000206001600160a01b03831660005260205260ff60406000205416156000146126bc5780600052600660205260406000206001600160a01b0383166000526020526040600020600160ff198254161790556001600160a01b03339216907f2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d600080a4600190565b5050600090565b80600052600660205260406000206001600160a01b03831660005260205260ff604060002054166000146126bc5780600052600660205260406000206001600160a01b038316600052602052604060002060ff1981541690556001600160a01b03339216907ff6391f5c32d9c69d2a47ea670b442974b53935d1edc7fd64eb21e047a839171b600080a4600190565b9081511561280d5781515b80158015806127e4575b156127795761157f576000190161275d565b50612783816119a0565b90612791604051928361197e565b808252601f196127a0826119a0565b0136602084013760005b8181106127b8575090925050565b6001906001600160f81b03196127ce8288613376565b511660001a6127dd8286613376565b53016127aa565b50600019820182811161157f576001600160f81b0319906128059086613376565b511615612767565b905060405161281d60208261197e565b6000815290565b9060209060405190612836838361197e565b600082526001600160a01b038416938415611b51576000828152600285526001600160a01b036040822054168387827fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef8115159586612a0f575b83815260038b5260408082208054600101905585825260028c528120805473ffffffffffffffffffffffffffffffffffffffff19168517905580a4506129f9573b6128dc575b50505050565b9161291a91819495936040519384928392630a85bd0160e11b845233600485015260006024850152604484015260806064840152608483019061188f565b03816000885af180916000916129bb575b50906129825750503d1561297b573d612943816119a0565b90612951604051928361197e565b81523d60008383013e5b805191826129785783633250574960e11b60005260045260246000fd5b01fd5b606061295b565b909291506001600160e01b03191663757a42ff60e11b016129a75750388080806128d6565b633250574960e11b60005260045260246000fd5b8481813d83116129f2575b6129d0818361197e565b81010312610baa5751906001600160e01b031982168203610ba757503861292b565b503d6129c6565b6339e3563760e11b600052600060045260246000fd5b612a3085600052600460205260406000206001600160a01b03198154169055565b82815260038b52604081208054600019019055612890565b93909293823b612a5a575b5050505050565b612aa16001600160a01b0392836020951696846040519788968796630a85bd0160e11b8852166004870152166024850152604484015260806064840152608483019061188f565b03816000865af18091600091612b2d575b5090612b0b57503d15612b04573d612ac9816119a0565b90612ad7604051928361197e565b81523d6000602083013e5b80519081612aff5782633250574960e11b60005260045260246000fd5b602001fd5b6060612ae2565b6001600160e01b03191663757a42ff60e11b016129a757503880808080612a53565b6020813d602011612b68575b81612b466020938361197e565b81010312610baa5751906001600160e01b031982168203610ba7575038612ab2565b3d9150612b39565b60ff60075416612b7c57565b63d93c066560e01b60005260046000fd5b604051611bc691612b9f60608361197e565b604082527f4142434445464748494a4b4c4d4e4f505152535455565758595a61626364656660208301527f6768696a6b6c6d6e6f707172737475767778797a303132333435363738392b2f6040830152613387565b90612bfe826119a0565b612c0b604051918261197e565b8281528092612c1c601f19916119a0565b0190602036910137565b600052600e6020526040600020604051612c3f8161194b565b60ff82541615159081815260018301549283602083015260028101549260408301938452600382015494606084019586526004830154906080850191825260ff6005850154169060a08601911515825260068501549360c08701948552610100600860078801549760e08a0198895201549701968752613117575051600090156130bd575060006001600160a01b036013541691516024604051809481936280c7e960e31b835260048301525afa908115610ade576000916130a2575b505b60006001600160a01b03600f5416955160246040518098819363ae11c58960e01b835260048301525afa948515610ade57600095613085575b5060006001600160a01b036012541696516024604051809981936385a96b9560e01b835260048301525afa958615610ade57600096613068575b5060006001600160a01b036015541692516024604051809581936359c9d30b60e01b835260048301525afa918215610ade5760009261304b575b5060006001600160a01b0360115416935160246040518096819363c433cd6d60e01b835260048301525afa928315610ade5760009361302e575b5060006001600160a01b0360165416945160246040518097819363ef3b9a8b60e01b835260048301525afa938415610ade57600094613011575b50604080517f7b2274726169745f74797065223a224261636b64726f70222c202276616c7565602082015262111d1160e91b9181019190915295869560438701808251602081940191612e719261186c565b62089f4b60ea1b91019081527f7b2274726169745f74797065223a22486174222c202276616c7565223a2200006003820152815191612eb9908390602184019060200161186c565b0162089f4b60ea1b6021820152602481017f7b2274726169745f74797065223a2245796573222c202276616c7565223a2200905281519182604383019160200191612f039261186c565b0160210162089f4b60ea1b6022820152602581017f7b2274726169745f74797065223a224d6f757468222c202276616c7565223a22905281519182604583019160200191612f509261186c565b0160220162089f4b60ea1b6023820152602681017f7b2274726169745f74797065223a22426f6479222c202276616c7565223a2200905281519182604583019160200191612f9d9261186c565b0160230162089f4b60ea1b6022820152602581017f7b2274726169745f74797065223a2246656574222c202276616c7565223a2200905281519182604483019160200191612fea9261186c565b0160220161227d60f01b602282015203602201601d1981018252600201611bc6908261197e565b6130279194503d806000833e6120ec818361197e565b9238612e1f565b6130449193503d806000833e6120ec818361197e565b9138612de5565b6130619192503d806000833e6120ec818361197e565b9038612dab565b61307e9196503d806000833e6120ec818361197e565b9438612d71565b61309b9195503d806000833e6120ec818361197e565b9338612d37565b6130b791503d806000833e6120ec818361197e565b38612cfc565b90816001600160a01b03601454169151602460405180948193630ff6ff9d60e11b835260048301525afa9182156121585780926130fc575b5050612cfe565b61311092503d8091833e6120ec818361197e565b38806130f5565b959650505050505060006001600160a01b0360105416916024604051809481936374f8a20b60e01b835260048301525afa908115610ade5760009161335d575b5060006001600160a01b03600f5416925160246040518095819363ae11c58960e01b835260048301525afa908115610ade576022611bc69260029260209560009261333e575b5082906040519687936131e56123bf8387016023907f7b2274726169745f74797065223a224261636b64726f70222c202276616c7565815262111d1160e91b60208201520190565b019062089f4b60ea1b82527f7b2274726169745f74797065223a22486174222c202276616c7565223a22000060038301526106a5602384602184516020860196613232828483018a61186c565b0162089f4b60ea1b828201527f7b2274726169745f74797065223a2245796573222c202276616c7565223a2200602482015285519061327582604383018a61186c565b010162089f4b60ea1b828201527f7b2274726169745f74797065223a224d6f757468222c202276616c7565223a2260258201528451906132b982604583018961186c565b010162089f4b60ea1b828201527f7b2274726169745f74797065223a22426f6479222c202276616c7565223a220060268201528351906132fd82604583018861186c565b01019162089f4b60ea1b858401527f7b2274726169745f74797065223a2246656574222c202276616c7565223a22006025840152518093604484019061186c565b83919250613356903d806000833e6120ec818361197e565b919061319d565b613370913d8091833e6120ec818361197e565b38613157565b908151811015610436570160200190565b9190918051156134835780516002810180911161157f57600390048060021b907f3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff81160361157f576133d890612bf4565b9060208201908081518201956020870190815192600083525b888110613435575050600393949596505251068060011461342257600214613417575090565b603d90600019015390565b50603d9081600019820153600119015390565b600360049199969901986001603f8b5182828260121c16870101518453828282600c1c16870101518385015382828260061c16870101516002850153168401015160038201530194976133f1565b50905060405161281d60208261197e56fea264697066735822122029c0225711ba3331785403e5a188971b07334d38ca68a33abb1ba91f4ef2b36364736f6c634300081c0033
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _oldContract (address): 0x4Adb7665C72ccdad25eD5B0BD87c34e4Ee9Da3c4
Arg [1] : _frogsBackdrop (address): 0x5bB638Ea28314116514daa924310E9575C3a78f8
Arg [2] : _frogsOneOfOne (address): 0x9e763207b713e70cacb40f5d33142e76eD7FfB20
Arg [3] : _frogsBody (address): 0xdD541b89d4c89fe351828F698660F04deE6D6a93
Arg [4] : _frogsHats (address): 0x3A95FB432520d7AB9d136958e96915479F7284Bb
Arg [5] : _frogsEyesA (address): 0x8582aACeD82Ae034Eeb05F869d843634450dB428
Arg [6] : _frogsEyesB (address): 0xF315bc82CF65EC3c4e77d57F84CfF1473652aFa4
Arg [7] : _frogsMouth (address): 0x8D2489ff3c82A92BC2b2F6c717eE7316cDb13Ea4
Arg [8] : _frogsFeet (address): 0x68160933deB55de5291dbd18016E20C18350113E
-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 0000000000000000000000004adb7665c72ccdad25ed5b0bd87c34e4ee9da3c4
Arg [1] : 0000000000000000000000005bb638ea28314116514daa924310e9575c3a78f8
Arg [2] : 0000000000000000000000009e763207b713e70cacb40f5d33142e76ed7ffb20
Arg [3] : 000000000000000000000000dd541b89d4c89fe351828f698660f04dee6d6a93
Arg [4] : 0000000000000000000000003a95fb432520d7ab9d136958e96915479f7284bb
Arg [5] : 0000000000000000000000008582aaced82ae034eeb05f869d843634450db428
Arg [6] : 000000000000000000000000f315bc82cf65ec3c4e77d57f84cff1473652afa4
Arg [7] : 0000000000000000000000008d2489ff3c82a92bc2b2f6c717ee7316cdb13ea4
Arg [8] : 00000000000000000000000068160933deb55de5291dbd18016e20c18350113e
[ Download: CSV Export ]
[ Download: CSV Export ]
A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.