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0 ETH
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Latest 11 from a total of 11 transactions
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Withdraw | 5303891 | 211 days ago | IN | 0 ETH | 0.00081445 | ||||
Set Approval For... | 5253236 | 213 days ago | IN | 0 ETH | 0.00000223 | ||||
Claim | 5252997 | 213 days ago | IN | 0 ETH | 0.00000856 | ||||
Mint | 5251991 | 213 days ago | IN | 0.001721 ETH | 0.00000226 | ||||
Mint | 5251942 | 213 days ago | IN | 0.001721 ETH | 0.00000235 | ||||
Mint | 5248551 | 213 days ago | IN | 0.003442 ETH | 0.00000273 | ||||
Mint | 5244142 | 213 days ago | IN | 0.001721 ETH | 0.00000136 | ||||
Mint | 5243728 | 213 days ago | IN | 0.008605 ETH | 0.00000155 | ||||
Mint | 5212615 | 214 days ago | IN | 0.001721 ETH | 0.00002387 | ||||
Mint | 5212239 | 214 days ago | IN | 0.008605 ETH | 0.00002511 | ||||
Update Mint Star... | 5209069 | 214 days ago | IN | 0 ETH | 0.00000666 |
Latest 11 internal transactions
Parent Transaction Hash | Block | From | To | |||
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5303891 | 211 days ago | 0.017 ETH | ||||
5251991 | 213 days ago | 0.000721 ETH | ||||
5251942 | 213 days ago | 0.000721 ETH | ||||
5248551 | 213 days ago | 0.001442 ETH | ||||
5245275 | 213 days ago | 0.000721 ETH | ||||
5245275 | 213 days ago | 0.001721 ETH | ||||
5244142 | 213 days ago | 0.000721 ETH | ||||
5243728 | 213 days ago | 0.003605 ETH | ||||
5212615 | 214 days ago | 0.000721 ETH | ||||
5212239 | 214 days ago | 0.003605 ETH | ||||
3529937 | 252 days ago | Contract Creation | 0 ETH |
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Minimal Proxy Contract for 0x8b32fe9e62e322f853525a7bb9e46939430a2300
Contract Name:
Artgene721Implementation
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./Artgene721.sol"; /** * @title contract by artgene.xyz */ ////////////////////////////////////////////////////////////////////////////////////////////////////// // // // // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#S%??%S#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%***++***S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+***%?**+*#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+*+*#@@?+*+?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+++%@@@#*+++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@%+++*#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+++%@@@@@#*+++%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@@@%+++*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++%@@@@@@@#++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S++++#@@@@@@@@?+++*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++?@@@@@@@@@S++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#++++S@@@@@@@@@@*+++*%???#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@@#S%?*+++++++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++?@@@@#?+++;+++++++%%S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#++++S@@@#*;+++?%S%++++@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%;+++@@@@#+++;%@@@#+++;S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*;+;?@@@@@%;+;+#@@@*;+;?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#+;;;S@@@@@@?;;;+S@@%;;;+@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%;;;+@@@@@@@@?;;;;?#%;;;+#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*;;;?@@@@@@@@@%+;;;+;;;;?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#;;;;#@@@@@@@@@@#%*+;;;+%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#?+*%@@@@@@@@@@@@@@#SS#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // // // // ////////////////////////////////////////////////////////////////////////////////////////////////////// contract Artgene721Implementation is Artgene721 { // This constructor ensures that this contract can only be used as a master copy // Marking constructor as initializer makes sure that real initializer cannot be called // Thus, as the owner of the contract is 0x0, no one can do anything with the contract // on the other hand, it's impossible to call this function in proxy, // so the real initializer is the only initializer /// @custom:oz-upgrades-unsafe-allow constructor constructor() initializer {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title LICENSE REQUIREMENT * @dev This contract is licensed under the MIT license. * @dev You're not allowed to remove PLATFORM() from contract */ import "erc721a-upgradeable/contracts/ERC721AUpgradeable.sol"; import "erc721a-upgradeable/contracts/extensions/ERC721ABurnableUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol"; import "@openzeppelin/contracts/interfaces/IERC2981.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "../interfaces/IERC4906.sol"; import "../interfaces/INFTExtension.sol"; import "../interfaces/IRenderer.sol"; import "../interfaces/IArtgene721.sol"; import "../interfaces/IArtgenePlatform.sol"; import "../../blast/BlastConfiguration.sol"; /** * @title contract by artgene.xyz */ ////////////////////////////////////////////////////////////////////////////////////////////////////// // // // // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#S%??%S#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%***++***S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+***%?**+*#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+*+*#@@?+*+?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+++%@@@#*+++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@%+++*#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+++%@@@@@#*+++%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@@@%+++*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++%@@@@@@@#++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S++++#@@@@@@@@?+++*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++?@@@@@@@@@S++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#++++S@@@@@@@@@@*+++*%???#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@S+++*#@@@@@#S%?*+++++++++S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@?+++?@@@@#?+++;+++++++%%S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#++++S@@@#*;+++?%S%++++@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%;+++@@@@#+++;%@@@#+++;S@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*;+;?@@@@@%;+;+#@@@*;+;?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#+;;;S@@@@@@?;;;+S@@%;;;+@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%;;;+@@@@@@@@?;;;;?#%;;;+#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*;;;?@@@@@@@@@%+;;;+;;;;?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#;;;;#@@@@@@@@@@#%*+;;;+%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#?+*%@@@@@@@@@@@@@@#SS#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // // // // ////////////////////////////////////////////////////////////////////////////////////////////////////// contract Artgene721 is ERC721AUpgradeable, ERC721ABurnableUpgradeable, ReentrancyGuardUpgradeable, OwnableUpgradeable, IArtgene721Implementation, IArtgene721 // implements IERC2981, IERC4906 { using Address for address; using SafeERC20 for IERC20; uint32 internal constant TIMESTAMP_INFINITY = type(uint32).max; // 4 294 967 295 is 136 years, which is year 2106 uint256 internal constant MAX_PER_MINT_LIMIT = 50; // based on ERC721A limitations uint256 public constant VERSION = 5; uint256 public PLATFORM_FEE; // of 10,000 uint256 public MINT_FEE; // marketplace minting fixed fee address payable private PLATFORM_TREASURY; uint32 public startTimestamp; uint32 public endTimestamp; uint256 public reserved; uint256 public maxSupply; uint256 public maxPerMint; uint256 public maxPerWallet; uint256 public price; uint256 public royaltyFee; address public royaltyReceiver; address public payoutReceiver; address public renderer; bool public isPayoutChangeLocked; bool public isBurningAllowed; bool private startAtOne; /** * @dev Additional data for each token that needs to be stored and accessed on-chain */ mapping(uint256 => bytes32) public data; /** * @dev Storing how many tokens each address has minted in public sale */ mapping(address => uint256) public mintedBy; /** * @dev List of connected extensions */ INFTExtension[] public extensions; string private baseURI; event ExtensionAdded(address indexed extensionAddress); event ExtensionRevoked(address indexed extensionAddress); event RendererAdded(address indexed extensionAddress); event BurningAllowedUpdated(bool isBurningAllowed); event PayoutChangeLocked(address payoutReceiver); event Withdraw(address indexed to, uint256 amount); event Evolution(uint256 indexed tokenId, bytes32 dna); function initialize( string memory _name, string memory _symbol, uint256 _maxSupply, uint256 _nReserved, bool _startAtOne, string memory _uri, MintConfig memory _config ) public initializerERC721A initializer { // CHECK INPUTS // either open edition or limited edition if (_maxSupply == ARTGENE_MAX_SUPPLY_OPEN_EDITION) { require( _config.startTimestamp != 0 && _config.endTimestamp != 0, "OpenEdition requires start and end timestamp" ); require( _config.startTimestamp < _config.endTimestamp, "OpenEdition requires startTimestamp < endTimestamp" ); require( _config.maxTokensPerWallet != 0, "OpenEdition requires maxPerWallet != 0" ); } else { // limited edition doesn't require start and end timestamp // you can provide them optionally } reserved = _nReserved; maxSupply = _maxSupply; // should be set before calling ERC721A_init ! startAtOne = _startAtOne; baseURI = _uri; maxPerMint = MAX_PER_MINT_LIMIT; // test if platform is deployed, platform is factory that deployed us IArtgenePlatform platform = IArtgenePlatform(msg.sender); require( address(platform).code.length != 0, "Platform not deployed" ); (PLATFORM_TREASURY, PLATFORM_FEE, MINT_FEE,) = platform.getPlatformInfo(); __ERC721A_init(_name, _symbol); __ERC721ABurnable_init(); __ReentrancyGuard_init(); __Ownable_init(); _configure( _config.publicPrice, _config.maxTokensPerMint, _config.maxTokensPerWallet, _config.royaltyFee, _config.payoutReceiver, _config.shouldLockPayoutReceiver, _config.startTimestamp, _config.endTimestamp ); // Configure the contract with the BLAST system if (_BLAST_isBlast()) { // only include this configuration if we're on Blast chain _BLAST_configurePointsOperator(BLAST_ARTGENE_OPERATOR); // Passing control to the deployer _BLAST_configureGovernor(msg.sender); } } function _configure( uint256 publicPrice, uint256 maxTokensPerMint, uint256 maxTokensPerWallet, uint256 _royaltyFee, address _payoutReceiver, bool shouldLockPayoutReceiver, uint32 _startTimestamp, uint32 _endTimestamp ) internal { if (_startTimestamp != 0) { startTimestamp = _startTimestamp; } if (_endTimestamp != 0) { endTimestamp = _endTimestamp; } if (publicPrice != 0) { price = publicPrice; } if (maxTokensPerMint > 0) { maxPerMint = maxTokensPerMint; } if (maxTokensPerWallet > 0) { maxPerWallet = maxTokensPerWallet; } if (_royaltyFee > 0) { royaltyFee = _royaltyFee; } if (_payoutReceiver != address(0)) { payoutReceiver = _payoutReceiver; } if (shouldLockPayoutReceiver) { isPayoutChangeLocked = true; } } function _baseURI() internal view override returns (string memory) { return baseURI; } function _startTokenId() internal view virtual override returns (uint256) { return startAtOne ? 1 : 0; } function isOpenEdition() internal view returns (bool) { return maxSupply == ARTGENE_MAX_SUPPLY_OPEN_EDITION; } // @dev used on Opensea to show collection-level metadata function contractURI() external view returns (string memory uri) { uri = _baseURI(); } function tokenHTML( uint256 tokenId, bytes32 dna, bytes calldata _data ) external view returns (string memory) { if (renderer != address(0)) { return IRenderer(renderer).tokenHTML(tokenId, dna, _data); } return ""; } function tokenURI( uint256 tokenId ) public view override(ERC721AUpgradeable, IERC721AUpgradeable) returns (string memory) { if (renderer != address(0)) { string memory uri = IRenderer(renderer).tokenURI(tokenId); if (bytes(uri).length > 0) { return uri; } } return super.tokenURI(tokenId); } function startTokenId() public view returns (uint256) { return _startTokenId(); } // ----- Admin functions ----- function setBaseURI(string calldata uri) public onlyOwner { baseURI = uri; // update metadata for all tokens if (_totalMinted() == 0) return; uint256 fromTokenId = _startTokenId(); uint256 toTokenId = _startTokenId() + _totalMinted() - 1; emit BatchMetadataUpdate(fromTokenId, toTokenId); } function setPrice(uint256 _price) public onlyOwner { price = _price; } function allowBurning(bool _isAllowed) public whenSaleNotStarted onlyOwner { isBurningAllowed = _isAllowed; emit BurningAllowedUpdated(_isAllowed); } function reduceMaxSupply( uint256 _maxSupply ) public whenSaleNotStarted onlyOwner { require( _totalMinted() + reserved <= _maxSupply, "Max supply is too low, already minted more (+ reserved)" ); require( _maxSupply < maxSupply, "Cannot set higher than the current maxSupply" ); maxSupply = _maxSupply; } // Lock changing withdraw address function lockPayoutReceiver() public onlyOwner { isPayoutChangeLocked = true; emit PayoutChangeLocked(getPayoutReceiver()); } function isExtensionAdded(address _extension) public view returns (bool) { for (uint256 index = 0; index < extensions.length; index++) { if (address(extensions[index]) == _extension) { return true; } } return false; } function extensionsLength() external view returns (uint256) { return extensions.length; } function extensionList() external view returns (INFTExtension[] memory) { // @dev this is O(N), don't use this on-chain return extensions; } // Extensions are allowed to mint function addExtension(address _extension) public onlyOwner { require(_extension != address(this), "Cannot add self as extension"); require(!isExtensionAdded(_extension), "Extension already added"); extensions.push(INFTExtension(_extension)); emit ExtensionAdded(_extension); } function revokeExtension(address _extension) public onlyOwner { uint256 index = 0; for (; index < extensions.length; index++) { if (extensions[index] == INFTExtension(_extension)) { break; } } extensions[index] = extensions[extensions.length - 1]; extensions.pop(); emit ExtensionRevoked(_extension); } function revokeAllExtensions() public onlyOwner { for (uint256 index = 0; index < extensions.length; index++) { emit ExtensionRevoked(address(extensions[index])); } delete extensions; } function setRenderer(address _renderer) public onlyOwner { require(_renderer != address(this), "Cannot add self as renderer"); require( _renderer == address(0) || ERC165Checker.supportsInterface( _renderer, type(IRenderer).interfaceId ), "Not conforms to renderer interface" ); renderer = _renderer; emit RendererAdded(_renderer); } // ---- Minting ---- function _mintConsecutive(uint256 nTokens, address to) internal { if (isOpenEdition()) { // unlimited minting } else { require( _totalMinted() + nTokens + reserved <= maxSupply, "Not enough Tokens left." ); } uint256 nextTokenId = _nextTokenId(); _safeMint(to, nTokens, ""); for (uint256 i; i < nTokens; i++) { uint256 tokenId = nextTokenId + i; bytes32 dna = _createDNA(tokenId); emit Evolution(tokenId, dna); } } // @dev depends on the current block, so it's not possible to know the DNA in advance function _createDNA(uint256 tokenId) internal view returns (bytes32) { return keccak256( abi.encodePacked( bytes32(block.prevrandao), blockhash(block.number - 1), bytes32(tokenId) ) ); } // ---- Mint control ---- modifier whenSaleActive() { require(saleStarted(), "Sale not active"); _; } modifier whenSaleNotStarted() { require(!saleStarted(), "Sale should not be active"); _; } modifier whenNotPayoutChangeLocked() { require(!isPayoutChangeLocked, "Payout change is locked"); _; } modifier whenBurnAllowed() { require(isBurningAllowed, "Burning is not allowed"); _; } modifier onlyExtension() { require( isExtensionAdded(msg.sender), "Extension should be added to contract before minting" ); _; } // ---- Mint public ---- // Contract can sell tokens function mint( uint256 nTokens ) external payable nonReentrant whenSaleActive { // setting it to 0 means no limit if (maxPerWallet > 0) { require( mintedBy[msg.sender] + nTokens <= maxPerWallet, "You cannot mint more than maxPerWallet tokens for one address!" ); // only store minted amounts after limit is enabled to save gas mintedBy[msg.sender] += nTokens; } require( nTokens <= maxPerMint, "You cannot mint more than MAX_TOKENS_PER_MINT tokens at once!" ); require(nTokens * price + _calculateMintFee(nTokens) <= msg.value, "Inconsistent amount sent!"); _transferMintFee(nTokens); _mintConsecutive(nTokens, msg.sender); } // Owner can claim free tokens without paying mint fee function claim( uint256 nTokens, address to ) external nonReentrant onlyOwner { require(nTokens <= reserved, "That would exceed the max reserved."); reserved = reserved - nTokens; _mintConsecutive(nTokens, to); } // ---- Mint via extension function mintExternal( uint256 nTokens, address to, bytes32 ) external payable onlyExtension nonReentrant { require(msg.value >= _calculateMintFee(nTokens), "Mint Fee is required"); _transferMintFee(nTokens); _mintConsecutive(nTokens, to); } // ---- Burn function burn( uint256 tokenId ) public override whenBurnAllowed nonReentrant { // The caller must own `tokenId` or be an approved operator. _burn(tokenId, true); } // ---- Mint configuration function updateMaxPerMint( uint256 _maxPerMint ) public onlyOwner nonReentrant { require(_maxPerMint <= MAX_PER_MINT_LIMIT, "Too many tokens per mint"); maxPerMint = _maxPerMint; } // set to 0 to save gas, mintedBy is not used function updateMaxPerWallet( uint256 _maxPerWallet ) public onlyOwner nonReentrant { maxPerWallet = _maxPerWallet; } // ---- Sale control ---- function updateStartTimestamp(uint32 _startTimestamp) public onlyOwner { startTimestamp = _startTimestamp; } function updateMintStartEnd( uint32 _startTimestamp, uint32 _endTimestamp ) public onlyOwner { startTimestamp = _startTimestamp; endTimestamp = _endTimestamp; } function startSale() public onlyOwner { startTimestamp = uint32(block.timestamp); if (endTimestamp < startTimestamp) { // if endTimestamp is not set, reset it to infinity endTimestamp = TIMESTAMP_INFINITY; } } function stopSale() public onlyOwner { startTimestamp = 0; } function saleStarted() public view returns (bool) { if (startTimestamp == 0) { // this is default value, means sale wasn't initilized // set startTimestamp to now to start sale return false; } if (endTimestamp == 0) { // if endTimestamp is not set, sale starts as usual return block.timestamp >= startTimestamp; } // otherwise check if sale is active return block.timestamp >= startTimestamp && block.timestamp <= endTimestamp; } // ---- Offchain Info ---- function setRoyaltyFee(uint256 _royaltyFee) public onlyOwner { royaltyFee = _royaltyFee; } function setRoyaltyReceiver(address _receiver) public onlyOwner { royaltyReceiver = _receiver; } function setPayoutReceiver( address _receiver ) public onlyOwner whenNotPayoutChangeLocked { payoutReceiver = payable(_receiver); } function royaltyInfo( uint256, uint256 salePrice ) external view returns (address receiver, uint256 royaltyAmount) { receiver = getRoyaltyReceiver(); royaltyAmount = (salePrice * royaltyFee) / 10000; } function getPayoutReceiver() public view returns (address payable receiver) { receiver = payoutReceiver != address(0x0) ? payable(payoutReceiver) : payable(owner()); } function getRoyaltyReceiver() public view returns (address payable receiver) { receiver = royaltyReceiver != address(0x0) ? payable(royaltyReceiver) : getPayoutReceiver(); } // ---- Allow royalty deposits from Opensea ----- receive() external payable {} // ---- Withdraw ----- modifier onlyPlatform() { require( payable(msg.sender) == PLATFORM_TREASURY, "Caller is not Platform" ); _; } function _calculateMintFee(uint256 amount) private view returns (uint256) { return MINT_FEE * amount; } function _transferMintFee(uint256 amount) private { Address.sendValue(PLATFORM_TREASURY, MINT_FEE * amount); } function _withdraw() private { uint256 balance = address(this).balance; uint256 amount = (balance * (10000 - PLATFORM_FEE)) / 10000; address payable receiver = getPayoutReceiver(); address payable platform = PLATFORM_TREASURY; Address.sendValue(receiver, amount); Address.sendValue(platform, balance - amount); emit Withdraw(receiver, amount); } function withdraw() public virtual onlyOwner { _withdraw(); } function forceWithdrawPlatform() public virtual onlyPlatform { _withdraw(); } function withdrawToken(IERC20 token) public virtual onlyOwner { uint256 balance = token.balanceOf(address(this)); uint256 amount = (balance * (10000 - PLATFORM_FEE)) / 10000; address payable receiver = getPayoutReceiver(); address payable platform = PLATFORM_TREASURY; token.safeTransfer(receiver, amount); token.safeTransfer(platform, balance - amount); } function PLATFORM() public pure returns (string memory _url) { _url = "https://artgene.xyz"; } // -------- ERC721 overrides -------- function supportsInterface( bytes4 interfaceId ) public view override(ERC721AUpgradeable, IERC721AUpgradeable) returns (bool) { return interfaceId == type(IERC2981).interfaceId || interfaceId == type(IERC4906).interfaceId || interfaceId == type(IArtgene721).interfaceId || super.supportsInterface(interfaceId); } // @dev from openzeppelin-contracts/contracts/interfaces/IERC4906.sol function forceMetadataUpdate( uint256 _fromTokenId, uint256 _toTokenId ) public onlyOwner { require(_fromTokenId <= _toTokenId, "Invalid range"); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. emit BatchMetadataUpdate(_fromTokenId, _toTokenId); } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.3.0 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721AUpgradeable.sol'; import {ERC721AStorage} from './ERC721AStorage.sol'; import './ERC721A__Initializable.sol'; /** * @dev Interface of ERC721 token receiver. */ interface ERC721A__IERC721ReceiverUpgradeable { function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } /** * @title ERC721A * * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721) * Non-Fungible Token Standard, including the Metadata extension. * Optimized for lower gas during batch mints. * * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...) * starting from `_startTokenId()`. * * The `_sequentialUpTo()` function can be overriden to enable spot mints * (i.e. non-consecutive mints) for `tokenId`s greater than `_sequentialUpTo()`. * * Assumptions: * * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply. * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256). */ contract ERC721AUpgradeable is ERC721A__Initializable, IERC721AUpgradeable { using ERC721AStorage for ERC721AStorage.Layout; // ============================================================= // CONSTANTS // ============================================================= // Mask of an entry in packed address data. uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1; // The bit position of `numberMinted` in packed address data. uint256 private constant _BITPOS_NUMBER_MINTED = 64; // The bit position of `numberBurned` in packed address data. uint256 private constant _BITPOS_NUMBER_BURNED = 128; // The bit position of `aux` in packed address data. uint256 private constant _BITPOS_AUX = 192; // Mask of all 256 bits in packed address data except the 64 bits for `aux`. uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1; // The bit position of `startTimestamp` in packed ownership. uint256 private constant _BITPOS_START_TIMESTAMP = 160; // The bit mask of the `burned` bit in packed ownership. uint256 private constant _BITMASK_BURNED = 1 << 224; // The bit position of the `nextInitialized` bit in packed ownership. uint256 private constant _BITPOS_NEXT_INITIALIZED = 225; // The bit mask of the `nextInitialized` bit in packed ownership. uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225; // The bit position of `extraData` in packed ownership. uint256 private constant _BITPOS_EXTRA_DATA = 232; // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`. uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1; // The mask of the lower 160 bits for addresses. uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1; // The maximum `quantity` that can be minted with {_mintERC2309}. // This limit is to prevent overflows on the address data entries. // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309} // is required to cause an overflow, which is unrealistic. uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000; // The `Transfer` event signature is given by: // `keccak256(bytes("Transfer(address,address,uint256)"))`. bytes32 private constant _TRANSFER_EVENT_SIGNATURE = 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef; // ============================================================= // CONSTRUCTOR // ============================================================= function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializingERC721A { __ERC721A_init_unchained(name_, symbol_); } function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializingERC721A { ERC721AStorage.layout()._name = name_; ERC721AStorage.layout()._symbol = symbol_; ERC721AStorage.layout()._currentIndex = _startTokenId(); if (_sequentialUpTo() < _startTokenId()) _revert(SequentialUpToTooSmall.selector); } // ============================================================= // TOKEN COUNTING OPERATIONS // ============================================================= /** * @dev Returns the starting token ID for sequential mints. * * Override this function to change the starting token ID for sequential mints. * * Note: The value returned must never change after any tokens have been minted. */ function _startTokenId() internal view virtual returns (uint256) { return 0; } /** * @dev Returns the maximum token ID (inclusive) for sequential mints. * * Override this function to return a value less than 2**256 - 1, * but greater than `_startTokenId()`, to enable spot (non-sequential) mints. * * Note: The value returned must never change after any tokens have been minted. */ function _sequentialUpTo() internal view virtual returns (uint256) { return type(uint256).max; } /** * @dev Returns the next token ID to be minted. */ function _nextTokenId() internal view virtual returns (uint256) { return ERC721AStorage.layout()._currentIndex; } /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() public view virtual override returns (uint256 result) { // Counter underflow is impossible as `_burnCounter` cannot be incremented // more than `_currentIndex + _spotMinted - _startTokenId()` times. unchecked { // With spot minting, the intermediate `result` can be temporarily negative, // and the computation must be unchecked. result = ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId(); if (_sequentialUpTo() != type(uint256).max) result += ERC721AStorage.layout()._spotMinted; } } /** * @dev Returns the total amount of tokens minted in the contract. */ function _totalMinted() internal view virtual returns (uint256 result) { // Counter underflow is impossible as `_currentIndex` does not decrement, // and it is initialized to `_startTokenId()`. unchecked { result = ERC721AStorage.layout()._currentIndex - _startTokenId(); if (_sequentialUpTo() != type(uint256).max) result += ERC721AStorage.layout()._spotMinted; } } /** * @dev Returns the total number of tokens burned. */ function _totalBurned() internal view virtual returns (uint256) { return ERC721AStorage.layout()._burnCounter; } /** * @dev Returns the total number of tokens that are spot-minted. */ function _totalSpotMinted() internal view virtual returns (uint256) { return ERC721AStorage.layout()._spotMinted; } // ============================================================= // ADDRESS DATA OPERATIONS // ============================================================= /** * @dev Returns the number of tokens in `owner`'s account. */ function balanceOf(address owner) public view virtual override returns (uint256) { if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector); return ERC721AStorage.layout()._packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens burned by or on behalf of `owner`. */ function _numberBurned(address owner) internal view returns (uint256) { return (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). */ function _getAux(address owner) internal view returns (uint64) { return uint64(ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_AUX); } /** * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). * If there are multiple variables, please pack them into a uint64. */ function _setAux(address owner, uint64 aux) internal virtual { uint256 packed = ERC721AStorage.layout()._packedAddressData[owner]; uint256 auxCasted; // Cast `aux` with assembly to avoid redundant masking. assembly { auxCasted := aux } packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX); ERC721AStorage.layout()._packedAddressData[owner] = packed; } // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { // The interface IDs are constants representing the first 4 bytes // of the XOR of all function selectors in the interface. // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165) // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`) return interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165. interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721. interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata. } // ============================================================= // IERC721Metadata // ============================================================= /** * @dev Returns the token collection name. */ function name() public view virtual override returns (string memory) { return ERC721AStorage.layout()._name; } /** * @dev Returns the token collection symbol. */ function symbol() public view virtual override returns (string memory) { return ERC721AStorage.layout()._symbol; } /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector); string memory baseURI = _baseURI(); return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : ''; } /** * @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, it can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ''; } // ============================================================= // OWNERSHIPS OPERATIONS // ============================================================= /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { return address(uint160(_packedOwnershipOf(tokenId))); } /** * @dev Gas spent here starts off proportional to the maximum mint batch size. * It gradually moves to O(1) as tokens get transferred around over time. */ function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(_packedOwnershipOf(tokenId)); } /** * @dev Returns the unpacked `TokenOwnership` struct at `index`. */ function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(ERC721AStorage.layout()._packedOwnerships[index]); } /** * @dev Returns whether the ownership slot at `index` is initialized. * An uninitialized slot does not necessarily mean that the slot has no owner. */ function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) { return ERC721AStorage.layout()._packedOwnerships[index] != 0; } /** * @dev Initializes the ownership slot minted at `index` for efficiency purposes. */ function _initializeOwnershipAt(uint256 index) internal virtual { if (ERC721AStorage.layout()._packedOwnerships[index] == 0) { ERC721AStorage.layout()._packedOwnerships[index] = _packedOwnershipOf(index); } } /** * @dev Returns the packed ownership data of `tokenId`. */ function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) { if (_startTokenId() <= tokenId) { packed = ERC721AStorage.layout()._packedOwnerships[tokenId]; if (tokenId > _sequentialUpTo()) { if (_packedOwnershipExists(packed)) return packed; _revert(OwnerQueryForNonexistentToken.selector); } // If the data at the starting slot does not exist, start the scan. if (packed == 0) { if (tokenId >= ERC721AStorage.layout()._currentIndex) _revert(OwnerQueryForNonexistentToken.selector); // Invariant: // There will always be an initialized ownership slot // (i.e. `ownership.addr != address(0) && ownership.burned == false`) // before an unintialized ownership slot // (i.e. `ownership.addr == address(0) && ownership.burned == false`) // Hence, `tokenId` will not underflow. // // We can directly compare the packed value. // If the address is zero, packed will be zero. for (;;) { unchecked { packed = ERC721AStorage.layout()._packedOwnerships[--tokenId]; } if (packed == 0) continue; if (packed & _BITMASK_BURNED == 0) return packed; // Otherwise, the token is burned, and we must revert. // This handles the case of batch burned tokens, where only the burned bit // of the starting slot is set, and remaining slots are left uninitialized. _revert(OwnerQueryForNonexistentToken.selector); } } // Otherwise, the data exists and we can skip the scan. // This is possible because we have already achieved the target condition. // This saves 2143 gas on transfers of initialized tokens. // If the token is not burned, return `packed`. Otherwise, revert. if (packed & _BITMASK_BURNED == 0) return packed; } _revert(OwnerQueryForNonexistentToken.selector); } /** * @dev Returns the unpacked `TokenOwnership` struct from `packed`. */ function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) { ownership.addr = address(uint160(packed)); ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP); ownership.burned = packed & _BITMASK_BURNED != 0; ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA); } /** * @dev Packs ownership data into a single uint256. */ function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`. result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)) } } /** * @dev Returns the `nextInitialized` flag set if `quantity` equals 1. */ function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) { // For branchless setting of the `nextInitialized` flag. assembly { // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`. result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1)) } } // ============================================================= // APPROVAL OPERATIONS // ============================================================= /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}. * * Requirements: * * - The caller must own the token or be an approved operator. */ function approve(address to, uint256 tokenId) public payable virtual override { _approve(to, tokenId, true); } /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector); return ERC721AStorage.layout()._tokenApprovals[tokenId].value; } /** * @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 caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) public virtual override { ERC721AStorage.layout()._operatorApprovals[_msgSenderERC721A()][operator] = approved; emit ApprovalForAll(_msgSenderERC721A(), operator, approved); } /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return ERC721AStorage.layout()._operatorApprovals[owner][operator]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted. See {_mint}. */ function _exists(uint256 tokenId) internal view virtual returns (bool result) { if (_startTokenId() <= tokenId) { if (tokenId > _sequentialUpTo()) return _packedOwnershipExists(ERC721AStorage.layout()._packedOwnerships[tokenId]); if (tokenId < ERC721AStorage.layout()._currentIndex) { uint256 packed; while ((packed = ERC721AStorage.layout()._packedOwnerships[tokenId]) == 0) --tokenId; result = packed & _BITMASK_BURNED == 0; } } } /** * @dev Returns whether `packed` represents a token that exists. */ function _packedOwnershipExists(uint256 packed) private pure returns (bool result) { assembly { // The following is equivalent to `owner != address(0) && burned == false`. // Symbolically tested. result := gt(and(packed, _BITMASK_ADDRESS), and(packed, _BITMASK_BURNED)) } } /** * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`. */ function _isSenderApprovedOrOwner( address approvedAddress, address owner, address msgSender ) private pure returns (bool result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean. msgSender := and(msgSender, _BITMASK_ADDRESS) // `msgSender == owner || msgSender == approvedAddress`. result := or(eq(msgSender, owner), eq(msgSender, approvedAddress)) } } /** * @dev Returns the storage slot and value for the approved address of `tokenId`. */ function _getApprovedSlotAndAddress(uint256 tokenId) private view returns (uint256 approvedAddressSlot, address approvedAddress) { ERC721AStorage.TokenApprovalRef storage tokenApproval = ERC721AStorage.layout()._tokenApprovals[tokenId]; // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`. assembly { approvedAddressSlot := tokenApproval.slot approvedAddress := sload(approvedAddressSlot) } } // ============================================================= // TRANSFER OPERATIONS // ============================================================= /** * @dev Transfers `tokenId` from `from` to `to`. * * 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 ) public payable virtual override { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean. from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS)); if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector); (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); // The nested ifs save around 20+ gas over a compound boolean condition. if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // We can directly increment and decrement the balances. --ERC721AStorage.layout()._packedAddressData[from]; // Updates: `balance -= 1`. ++ERC721AStorage.layout()._packedAddressData[to]; // Updates: `balance += 1`. // Updates: // - `address` to the next owner. // - `startTimestamp` to the timestamp of transfering. // - `burned` to `false`. // - `nextInitialized` to `true`. ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData( to, _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != ERC721AStorage.layout()._currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS; assembly { // Emit the `Transfer` event. log4( 0, // Start of data (0, since no data). 0, // End of data (0, since no data). _TRANSFER_EVENT_SIGNATURE, // Signature. from, // `from`. toMasked, // `to`. tokenId // `tokenId`. ) } if (toMasked == 0) _revert(TransferToZeroAddress.selector); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public payable virtual override { safeTransferFrom(from, to, tokenId, ''); } /** * @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 memory _data ) public payable virtual override { transferFrom(from, to, tokenId); if (to.code.length != 0) if (!_checkContractOnERC721Received(from, to, tokenId, _data)) { _revert(TransferToNonERC721ReceiverImplementer.selector); } } /** * @dev Hook that is called before a set of serially-ordered token IDs * are about to be transferred. This includes minting. * And also called before burning one token. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token IDs * have been transferred. This includes minting. * And also called after one token has been burned. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been * transferred to `to`. * - When `from` is zero, `tokenId` has been minted for `to`. * - When `to` is zero, `tokenId` has been burned by `from`. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract. * * `from` - Previous owner of the given token ID. * `to` - Target address that will receive the token. * `tokenId` - Token ID to be transferred. * `_data` - Optional data to send along with the call. * * Returns whether the call correctly returned the expected magic value. */ function _checkContractOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { try ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (bytes4 retval) { return retval == ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { _revert(TransferToNonERC721ReceiverImplementer.selector); } assembly { revert(add(32, reason), mload(reason)) } } } // ============================================================= // MINT OPERATIONS // ============================================================= /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {Transfer} event for each mint. */ function _mint(address to, uint256 quantity) internal virtual { uint256 startTokenId = ERC721AStorage.layout()._currentIndex; if (quantity == 0) _revert(MintZeroQuantity.selector); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // `balance` and `numberMinted` have a maximum limit of 2**64. // `tokenId` has a maximum limit of 2**256. unchecked { // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS; if (toMasked == 0) _revert(MintToZeroAddress.selector); uint256 end = startTokenId + quantity; uint256 tokenId = startTokenId; if (end - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector); do { assembly { // Emit the `Transfer` event. log4( 0, // Start of data (0, since no data). 0, // End of data (0, since no data). _TRANSFER_EVENT_SIGNATURE, // Signature. 0, // `address(0)`. toMasked, // `to`. tokenId // `tokenId`. ) } // The `!=` check ensures that large values of `quantity` // that overflows uint256 will make the loop run out of gas. } while (++tokenId != end); ERC721AStorage.layout()._currentIndex = end; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * This function is intended for efficient minting only during contract creation. * * It emits only one {ConsecutiveTransfer} as defined in * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309), * instead of a sequence of {Transfer} event(s). * * Calling this function outside of contract creation WILL make your contract * non-compliant with the ERC721 standard. * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309 * {ConsecutiveTransfer} event is only permissible during contract creation. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {ConsecutiveTransfer} event. */ function _mintERC2309(address to, uint256 quantity) internal virtual { uint256 startTokenId = ERC721AStorage.layout()._currentIndex; if (to == address(0)) _revert(MintToZeroAddress.selector); if (quantity == 0) _revert(MintZeroQuantity.selector); if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are unrealistic due to the above check for `quantity` to be below the limit. unchecked { // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); if (startTokenId + quantity - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector); emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to); ERC721AStorage.layout()._currentIndex = startTokenId + quantity; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Safely mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called for each safe transfer. * - `quantity` must be greater than 0. * * See {_mint}. * * Emits a {Transfer} event for each mint. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal virtual { _mint(to, quantity); unchecked { if (to.code.length != 0) { uint256 end = ERC721AStorage.layout()._currentIndex; uint256 index = end - quantity; do { if (!_checkContractOnERC721Received(address(0), to, index++, _data)) { _revert(TransferToNonERC721ReceiverImplementer.selector); } } while (index < end); // This prevents reentrancy to `_safeMint`. // It does not prevent reentrancy to `_safeMintSpot`. if (ERC721AStorage.layout()._currentIndex != end) revert(); } } } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal virtual { _safeMint(to, quantity, ''); } /** * @dev Mints a single token at `tokenId`. * * Note: A spot-minted `tokenId` that has been burned can be re-minted again. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` must be greater than `_sequentialUpTo()`. * - `tokenId` must not exist. * * Emits a {Transfer} event for each mint. */ function _mintSpot(address to, uint256 tokenId) internal virtual { if (tokenId <= _sequentialUpTo()) _revert(SpotMintTokenIdTooSmall.selector); uint256 prevOwnershipPacked = ERC721AStorage.layout()._packedOwnerships[tokenId]; if (_packedOwnershipExists(prevOwnershipPacked)) _revert(TokenAlreadyExists.selector); _beforeTokenTransfers(address(0), to, tokenId, 1); // Overflows are incredibly unrealistic. // The `numberMinted` for `to` is incremented by 1, and has a max limit of 2**64 - 1. // `_spotMinted` is incremented by 1, and has a max limit of 2**256 - 1. unchecked { // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `true` (as `quantity == 1`). ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData( to, _nextInitializedFlag(1) | _nextExtraData(address(0), to, prevOwnershipPacked) ); // Updates: // - `balance += 1`. // - `numberMinted += 1`. // // We can directly add to the `balance` and `numberMinted`. ERC721AStorage.layout()._packedAddressData[to] += (1 << _BITPOS_NUMBER_MINTED) | 1; // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS; if (toMasked == 0) _revert(MintToZeroAddress.selector); assembly { // Emit the `Transfer` event. log4( 0, // Start of data (0, since no data). 0, // End of data (0, since no data). _TRANSFER_EVENT_SIGNATURE, // Signature. 0, // `address(0)`. toMasked, // `to`. tokenId // `tokenId`. ) } ++ERC721AStorage.layout()._spotMinted; } _afterTokenTransfers(address(0), to, tokenId, 1); } /** * @dev Safely mints a single token at `tokenId`. * * Note: A spot-minted `tokenId` that has been burned can be re-minted again. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}. * - `tokenId` must be greater than `_sequentialUpTo()`. * - `tokenId` must not exist. * * See {_mintSpot}. * * Emits a {Transfer} event. */ function _safeMintSpot( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mintSpot(to, tokenId); unchecked { if (to.code.length != 0) { uint256 currentSpotMinted = ERC721AStorage.layout()._spotMinted; if (!_checkContractOnERC721Received(address(0), to, tokenId, _data)) { _revert(TransferToNonERC721ReceiverImplementer.selector); } // This prevents reentrancy to `_safeMintSpot`. // It does not prevent reentrancy to `_safeMint`. if (ERC721AStorage.layout()._spotMinted != currentSpotMinted) revert(); } } } /** * @dev Equivalent to `_safeMintSpot(to, tokenId, '')`. */ function _safeMintSpot(address to, uint256 tokenId) internal virtual { _safeMintSpot(to, tokenId, ''); } // ============================================================= // APPROVAL OPERATIONS // ============================================================= /** * @dev Equivalent to `_approve(to, tokenId, false)`. */ function _approve(address to, uint256 tokenId) internal virtual { _approve(to, tokenId, false); } /** * @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: * * - `tokenId` must exist. * * Emits an {Approval} event. */ function _approve( address to, uint256 tokenId, bool approvalCheck ) internal virtual { address owner = ownerOf(tokenId); if (approvalCheck && _msgSenderERC721A() != owner) if (!isApprovedForAll(owner, _msgSenderERC721A())) { _revert(ApprovalCallerNotOwnerNorApproved.selector); } ERC721AStorage.layout()._tokenApprovals[tokenId].value = to; emit Approval(owner, to, tokenId); } // ============================================================= // BURN OPERATIONS // ============================================================= /** * @dev Equivalent to `_burn(tokenId, false)`. */ function _burn(uint256 tokenId) internal virtual { _burn(tokenId, false); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId, bool approvalCheck) internal virtual { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); address from = address(uint160(prevOwnershipPacked)); (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); if (approvalCheck) { // The nested ifs save around 20+ gas over a compound boolean condition. if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector); } _beforeTokenTransfers(from, address(0), tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // Updates: // - `balance -= 1`. // - `numberBurned += 1`. // // We can directly decrement the balance, and increment the number burned. // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`. ERC721AStorage.layout()._packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1; // Updates: // - `address` to the last owner. // - `startTimestamp` to the timestamp of burning. // - `burned` to `true`. // - `nextInitialized` to `true`. ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData( from, (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != ERC721AStorage.layout()._currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } emit Transfer(from, address(0), tokenId); _afterTokenTransfers(from, address(0), tokenId, 1); // Overflow not possible, as `_burnCounter` cannot be exceed `_currentIndex + _spotMinted` times. unchecked { ERC721AStorage.layout()._burnCounter++; } } // ============================================================= // EXTRA DATA OPERATIONS // ============================================================= /** * @dev Directly sets the extra data for the ownership data `index`. */ function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual { uint256 packed = ERC721AStorage.layout()._packedOwnerships[index]; if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector); uint256 extraDataCasted; // Cast `extraData` with assembly to avoid redundant masking. assembly { extraDataCasted := extraData } packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA); ERC721AStorage.layout()._packedOwnerships[index] = packed; } /** * @dev Called during each token transfer to set the 24bit `extraData` field. * Intended to be overridden by the cosumer contract. * * `previousExtraData` - the value of `extraData` before transfer. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _extraData( address from, address to, uint24 previousExtraData ) internal view virtual returns (uint24) {} /** * @dev Returns the next extra data for the packed ownership data. * The returned result is shifted into position. */ function _nextExtraData( address from, address to, uint256 prevOwnershipPacked ) private view returns (uint256) { uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA); return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA; } // ============================================================= // OTHER OPERATIONS // ============================================================= /** * @dev Returns the message sender (defaults to `msg.sender`). * * If you are writing GSN compatible contracts, you need to override this function. */ function _msgSenderERC721A() internal view virtual returns (address) { return msg.sender; } /** * @dev Converts a uint256 to its ASCII string decimal representation. */ function _toString(uint256 value) internal pure virtual returns (string memory str) { assembly { // The maximum value of a uint256 contains 78 digits (1 byte per digit), but // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned. // We will need 1 word for the trailing zeros padding, 1 word for the length, // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0. let m := add(mload(0x40), 0xa0) // Update the free memory pointer to allocate. mstore(0x40, m) // Assign the `str` to the end. str := sub(m, 0x20) // Zeroize the slot after the string. mstore(str, 0) // Cache the end of the memory to calculate the length later. let end := str // We write the string from rightmost digit to leftmost digit. // The following is essentially a do-while loop that also handles the zero case. // prettier-ignore for { let temp := value } 1 {} { str := sub(str, 1) // Write the character to the pointer. // The ASCII index of the '0' character is 48. mstore8(str, add(48, mod(temp, 10))) // Keep dividing `temp` until zero. temp := div(temp, 10) // prettier-ignore if iszero(temp) { break } } let length := sub(end, str) // Move the pointer 32 bytes leftwards to make room for the length. str := sub(str, 0x20) // Store the length. mstore(str, length) } } /** * @dev For more efficient reverts. */ function _revert(bytes4 errorSelector) internal pure { assembly { mstore(0x00, errorSelector) revert(0x00, 0x04) } } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.3.0 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721ABurnableUpgradeable.sol'; import '../ERC721AUpgradeable.sol'; import '../ERC721A__Initializable.sol'; /** * @title ERC721ABurnable. * * @dev ERC721A token that can be irreversibly burned (destroyed). */ abstract contract ERC721ABurnableUpgradeable is ERC721A__Initializable, ERC721AUpgradeable, IERC721ABurnableUpgradeable { function __ERC721ABurnable_init() internal onlyInitializingERC721A { __ERC721ABurnable_init_unchained(); } function __ERC721ABurnable_init_unchained() internal onlyInitializingERC721A {} /** * @dev Burns `tokenId`. See {ERC721A-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual override { _burn(tokenId, true); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal onlyInitializing { __Ownable_init_unchained(); } function __Ownable_init_unchained() internal onlyInitializing { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // 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; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/introspection/ERC165Checker.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Library used to query support of an interface declared via {IERC165}. * * Note that these functions return the actual result of the query: they do not * `revert` if an interface is not supported. It is up to the caller to decide * what to do in these cases. */ library ERC165Checker { // As per the EIP-165 spec, no interface should ever match 0xffffffff bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff; /** * @dev Returns true if `account` supports the {IERC165} interface. */ function supportsERC165(address account) internal view returns (bool) { // Any contract that implements ERC165 must explicitly indicate support of // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid return supportsERC165InterfaceUnchecked(account, type(IERC165).interfaceId) && !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID); } /** * @dev Returns true if `account` supports the interface defined by * `interfaceId`. Support for {IERC165} itself is queried automatically. * * See {IERC165-supportsInterface}. */ function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) { // query support of both ERC165 as per the spec and support of _interfaceId return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId); } /** * @dev Returns a boolean array where each value corresponds to the * interfaces passed in and whether they're supported or not. This allows * you to batch check interfaces for a contract where your expectation * is that some interfaces may not be supported. * * See {IERC165-supportsInterface}. * * _Available since v3.4._ */ function getSupportedInterfaces( address account, bytes4[] memory interfaceIds ) internal view returns (bool[] memory) { // an array of booleans corresponding to interfaceIds and whether they're supported or not bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length); // query support of ERC165 itself if (supportsERC165(account)) { // query support of each interface in interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]); } } return interfaceIdsSupported; } /** * @dev Returns true if `account` supports all the interfaces defined in * `interfaceIds`. Support for {IERC165} itself is queried automatically. * * Batch-querying can lead to gas savings by skipping repeated checks for * {IERC165} support. * * See {IERC165-supportsInterface}. */ function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) { // query support of ERC165 itself if (!supportsERC165(account)) { return false; } // query support of each interface in interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) { return false; } } // all interfaces supported return true; } /** * @notice Query if a contract implements an interface, does not check ERC165 support * @param account The address of the contract to query for support of an interface * @param interfaceId The interface identifier, as specified in ERC-165 * @return true if the contract at account indicates support of the interface with * identifier interfaceId, false otherwise * @dev Assumes that account contains a contract that supports ERC165, otherwise * the behavior of this method is undefined. This precondition can be checked * with {supportsERC165}. * * Some precompiled contracts will falsely indicate support for a given interface, so caution * should be exercised when using this function. * * Interface identification is specified in ERC-165. */ function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) { // prepare call bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId); // perform static call bool success; uint256 returnSize; uint256 returnValue; assembly { success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20) returnSize := returndatasize() returnValue := mload(0x00) } return success && returnSize >= 0x20 && returnValue > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../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. * * _Available since v4.5._ */ 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. */ function royaltyInfo( uint256 tokenId, uint256 salePrice ) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/interfaces/IERC165.sol"; import "@openzeppelin/contracts/interfaces/IERC721.sol"; // from OpenZeppelin Contracts draft https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/interfaces/IERC4906.sol /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165, IERC721 { /// @dev This event emits when the metadata of a token is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFT. event MetadataUpdate(uint256 _tokenId); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; interface INFTExtension is IERC165 {} interface INFTURIExtension is INFTExtension { function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; interface IRenderer is IERC165 { function render(uint256 tokenId, bytes memory optional) external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); function tokenHTML(uint256 tokenId, bytes32 dna, bytes calldata optional) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; address constant ARTGENE_PROXY_IMPLEMENTATION = 0x8A13A3ea74aC471dF04a1A04666059EF8F6e6be9; uint256 constant ARTGENE_MAX_SUPPLY_OPEN_EDITION = 0; struct MintConfig { uint256 publicPrice; uint256 maxTokensPerMint; uint256 maxTokensPerWallet; uint256 royaltyFee; address payoutReceiver; bool shouldLockPayoutReceiver; uint32 startTimestamp; uint32 endTimestamp; } interface IArtgene721 { // ------ View functions ------ function saleStarted() external view returns (bool); function isExtensionAdded(address extension) external view returns (bool); function renderer() external view returns (address); /** Extra information stored for each tokenId. Optional, provided on mint */ function data(uint256 tokenId) external view returns (bytes32); // ------ Mint functions ------ /** Mint from NFTExtension contract. Optionally provide data parameter. */ function mintExternal( uint256 amount, address to, bytes32 data ) external payable; // ------ Admin functions ------ function addExtension(address extension) external; function revokeExtension(address extension) external; function withdraw() external; // ------ View functions ------ /** Recommended royalty for tokenId sale. */ function royaltyInfo( uint256 tokenId, uint256 salePrice ) external view returns (address receiver, uint256 royaltyAmount); // ------ Admin functions ------ function setRoyaltyReceiver(address receiver) external; function setRoyaltyFee(uint256 fee) external; // ------ IERC4906 ------ /// @dev This event emits when the metadata of a token is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFT. event MetadataUpdate(uint256 _tokenId); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); } interface IArtgene721Implementation { function initialize( string memory _name, string memory _symbol, uint256 _maxSupply, uint256 _nReserved, bool _startAtOne, string memory uri, MintConfig memory config ) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; address constant ARTGENE_PLATFORM_ADDRESS = 0xAaaeEee77ED0D0ffCc2813333b796E367f1E12d9; address constant ARTGENE_PLATFORM_ADDRESS_ZKSYNC = 0x983A23615aC3ECdeBe7d1438251403d57956Ccba; function getChainID() view returns (uint256) { uint256 id; assembly { id := chainid() } return id; } function getArtgenePlatformAddress() view returns (address) { uint256 chainID = getChainID(); if (chainID == 1) { // mainnet return ARTGENE_PLATFORM_ADDRESS; } else if (chainID == 5) { // goerli return ARTGENE_PLATFORM_ADDRESS; } else if (chainID == 280) { // zksync testnet return ARTGENE_PLATFORM_ADDRESS_ZKSYNC; } else if (chainID == 324) { // zksync era return ARTGENE_PLATFORM_ADDRESS_ZKSYNC; } else { return address(0); } } interface IArtgenePlatform { function getPlatformFee() external view returns (uint256); function getPlatformAddress() external view returns (address payable); function getCreationFee() external view returns (uint256); function getMintFee() external view returns (uint256); function getPlatformInfo() external view returns (address payable, uint256, uint256, uint256); function setPlatformFee(uint256 _platformFee) external; function setPlatformAddress(address payable _platformAddress) external; function setCreationFee(uint256 _creationFee) external; function setMintFee(uint256 _mintFee) external; } interface IArtgeneMarketplace { function getRateFee() external view returns (uint256); function getFlatFee() external view returns (uint256); function getCreationFee() external view returns (uint256); function getAddress() external view returns (address payable); function setRateFee(uint256 _platformFee) external; function setFlatFee(uint256 _platformFee) external; function setCreationFee(uint256 _platformFee) external; function setAddress(address payable _platformAddress) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IBlast.sol"; /// @dev https://docs.blast.io/building/guides/eth-yield /** * @dev This constant represents the address of the Blast System Contract. * Reference: https://docs.blast.io/building/guides/gas-fees */ address constant BLAST_SYSTEM_CONTRACT = 0x4300000000000000000000000000000000000002; // https://docs.blast.io/building/network-information // Mainnet Chain ID 81457 // Testnet Chain ID 168587773 uint256 constant BLAST_MAINNET_CHAIN_ID = 81457; uint256 constant BLAST_TESTNET_CHAIN_ID = 168587773; // BlastPoints Mainnet address: 0x2536FE9ab3F511540F2f9e2eC2A805005C3Dd800 // BlastPoints Testnet address: 0x2fc95838c71e76ec69ff817983BFf17c710F34E0 address constant BLAST_MAINNET_POINTS = 0x2536FE9ab3F511540F2f9e2eC2A805005C3Dd800; address constant BLAST_TESTNET_POINTS = 0x2fc95838c71e76ec69ff817983BFf17c710F34E0; /// @dev This constant represents the address of the BLAST_ARTGENE_OPERATOR. Stored in `cast wallet` address constant BLAST_ARTGENE_OPERATOR = 0x9b1419cd4b86C6c44146276A9A5c34A91872d841; /** * @dev This constant represents the interface to the BLAST contract. * It is initialized with the address of the BLAST_SYSTEM_CONTRACT. */ IBlast constant BLAST = IBlast(BLAST_SYSTEM_CONTRACT); /** * @dev Retrieves the current chain ID. * @return The chain ID as an unsigned integer. */ function chainId() view returns (uint) { uint _chainId; assembly { _chainId := chainid() } return _chainId; } /** * @dev Checks whether current chain is Blast by verifying the BLAST contract address. * @return A boolean value indicating whether the current chain is Blast. */ function _BLAST_isBlast() view returns (bool) { return address(BLAST).code.length > 0; } /** * @dev Returns the address of the Blast Points contract. */ function _BLAST_getBlastPointsAddress() view returns (IBlastPoints) { if (chainId() == BLAST_MAINNET_CHAIN_ID) { return IBlastPoints(BLAST_MAINNET_POINTS); } else if (chainId() == BLAST_TESTNET_CHAIN_ID) { return IBlastPoints(BLAST_TESTNET_POINTS); } else { revert("Chain ID is not Blast"); } } /** * @dev Configures the governor for the BLAST contract. * @param _newGovernor The address of the new governor. */ function _BLAST_configureGovernor(address _newGovernor) { BLAST.configureGovernor(_newGovernor); } /** * @dev Configures the governor for the BLAST contract on behalf of a specific contract. * @param _newGovernor The address of the new governor. * @param _contractAddress The address of the contract on whose behalf the governor is being configured. */ function _BLAST_configureGovernor( address _newGovernor, address _contractAddress ) { BLAST.configureGovernorOnBehalf(_newGovernor, _contractAddress); } /** * @dev Configures the points operator for the Blast Points API. * @param _newOperator The address of the new points operator. */ function _BLAST_configurePointsOperator(address _newOperator) { // Configure Blast Points API https://docs.blast.io/airdrop/mainnet-points-api/how-to-integrate-api IBlastPoints BLAST_POINTS = _BLAST_getBlastPointsAddress(); BLAST_POINTS.configurePointsOperator(_newOperator); } /** * @dev Configures the points operator for the Blast Points API on behalf of a specific contract. * @param _newOperator The address of the new points operator. * @param _contractAddress The address of the contract on whose behalf the points operator is being configured. */ function _BLAST_configurePointsOperator( address _newOperator, address _contractAddress ) { // Configure Blast Points API https://docs.blast.io/airdrop/mainnet-points-api/how-to-integrate-api IBlastPoints BLAST_POINTS = _BLAST_getBlastPointsAddress(); BLAST_POINTS.configurePointsOperatorOnBehalf( _contractAddress, _newOperator ); }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.3.0 // Creator: Chiru Labs pragma solidity ^0.8.4; /** * @dev Interface of ERC721A. */ interface IERC721AUpgradeable { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * Cannot query the balance for the zero address. */ error BalanceQueryForZeroAddress(); /** * Cannot mint to the zero address. */ error MintToZeroAddress(); /** * The quantity of tokens minted must be more than zero. */ error MintZeroQuantity(); /** * The token does not exist. */ error OwnerQueryForNonexistentToken(); /** * The caller must own the token or be an approved operator. */ error TransferCallerNotOwnerNorApproved(); /** * The token must be owned by `from`. */ error TransferFromIncorrectOwner(); /** * Cannot safely transfer to a contract that does not implement the * ERC721Receiver interface. */ error TransferToNonERC721ReceiverImplementer(); /** * Cannot transfer to the zero address. */ error TransferToZeroAddress(); /** * The token does not exist. */ error URIQueryForNonexistentToken(); /** * The `quantity` minted with ERC2309 exceeds the safety limit. */ error MintERC2309QuantityExceedsLimit(); /** * The `extraData` cannot be set on an unintialized ownership slot. */ error OwnershipNotInitializedForExtraData(); /** * `_sequentialUpTo()` must be greater than `_startTokenId()`. */ error SequentialUpToTooSmall(); /** * The `tokenId` of a sequential mint exceeds `_sequentialUpTo()`. */ error SequentialMintExceedsLimit(); /** * Spot minting requires a `tokenId` greater than `_sequentialUpTo()`. */ error SpotMintTokenIdTooSmall(); /** * Cannot mint over a token that already exists. */ error TokenAlreadyExists(); /** * The feature is not compatible with spot mints. */ error NotCompatibleWithSpotMints(); // ============================================================= // STRUCTS // ============================================================= struct TokenOwnership { // The address of the owner. address addr; // Stores the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}. uint24 extraData; } // ============================================================= // TOKEN COUNTERS // ============================================================= /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() external view returns (uint256); // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); // ============================================================= // IERC721 // ============================================================= /** * @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`, * checking first that contract recipients are aware of the ERC721 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 be 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, bytes calldata data ) external payable; /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external payable; /** * @dev Transfers `tokenId` from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} * whenever possible. * * 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 payable; /** * @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 payable; /** * @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 caller. * * 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); // ============================================================= // IERC721Metadata // ============================================================= /** * @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); // ============================================================= // IERC2309 // ============================================================= /** * @dev Emitted when tokens in `fromTokenId` to `toTokenId` * (inclusive) is transferred from `from` to `to`, as defined in the * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard. * * See {_mintERC2309} for more details. */ event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; library ERC721AStorage { // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364). struct TokenApprovalRef { address value; } struct Layout { // ============================================================= // STORAGE // ============================================================= // The next token ID to be minted. uint256 _currentIndex; // The number of tokens burned. uint256 _burnCounter; // Token name string _name; // Token symbol string _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. // See {_packedOwnershipOf} implementation for details. // // Bits Layout: // - [0..159] `addr` // - [160..223] `startTimestamp` // - [224] `burned` // - [225] `nextInitialized` // - [232..255] `extraData` mapping(uint256 => uint256) _packedOwnerships; // Mapping owner address to address data. // // Bits Layout: // - [0..63] `balance` // - [64..127] `numberMinted` // - [128..191] `numberBurned` // - [192..255] `aux` mapping(address => uint256) _packedAddressData; // Mapping from token ID to approved address. mapping(uint256 => ERC721AStorage.TokenApprovalRef) _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) _operatorApprovals; // The amount of tokens minted above `_sequentialUpTo()`. // We call these spot mints (i.e. non-sequential mints). uint256 _spotMinted; } bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.ERC721A'); function layout() internal pure returns (Layout storage l) { bytes32 slot = STORAGE_SLOT; assembly { l.slot := slot } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is a base contract to aid in writing upgradeable diamond facet contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. */ import {ERC721A__InitializableStorage} from './ERC721A__InitializableStorage.sol'; abstract contract ERC721A__Initializable { using ERC721A__InitializableStorage for ERC721A__InitializableStorage.Layout; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializerERC721A() { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the // contract may have been reentered. require( ERC721A__InitializableStorage.layout()._initializing ? _isConstructor() : !ERC721A__InitializableStorage.layout()._initialized, 'ERC721A__Initializable: contract is already initialized' ); bool isTopLevelCall = !ERC721A__InitializableStorage.layout()._initializing; if (isTopLevelCall) { ERC721A__InitializableStorage.layout()._initializing = true; ERC721A__InitializableStorage.layout()._initialized = true; } _; if (isTopLevelCall) { ERC721A__InitializableStorage.layout()._initializing = false; } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} modifier, directly or indirectly. */ modifier onlyInitializingERC721A() { require( ERC721A__InitializableStorage.layout()._initializing, 'ERC721A__Initializable: contract is not initializing' ); _; } /// @dev Returns true if and only if the function is running in the constructor function _isConstructor() private view returns (bool) { // extcodesize checks the size of the code stored in an address, and // address returns the current address. Since the code is still not // deployed when running a constructor, any checks on its code size will // yield zero, making it an effective way to detect if a contract is // under construction or not. address self = address(this); uint256 cs; assembly { cs := extcodesize(self) } return cs == 0; } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.3.0 // Creator: Chiru Labs pragma solidity ^0.8.4; import '../IERC721AUpgradeable.sol'; /** * @dev Interface of ERC721ABurnable. */ interface IERC721ABurnableUpgradeable is IERC721AUpgradeable { /** * @dev Burns `tokenId`. See {ERC721A-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol) pragma solidity ^0.8.0; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a * constructor. * * Emits an {Initialized} event. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: setting the version to 255 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized != type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint8) { return _initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _initializing; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface 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[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. * * CAUTION: See Security Considerations above. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol) pragma solidity ^0.8.0; import "../token/ERC721/IERC721.sol";
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; enum YieldMode { AUTOMATIC, VOID, CLAIMABLE } enum GasMode { VOID, CLAIMABLE } interface IBlastPoints { // configure function configurePointsOperator(address operator) external; function configurePointsOperatorOnBehalf( address contractAddress, address operator ) external; // read function readStatus( address contractAddress ) external view returns (address operatorAddress, bool isBanned, uint256 codeLength); } interface IBlast { // configure function configureContract( address contractAddress, YieldMode _yield, GasMode gasMode, address governor ) external; function configure( YieldMode _yield, GasMode gasMode, address governor ) external; // base configuration options function configureClaimableYield() external; function configureClaimableYieldOnBehalf(address contractAddress) external; function configureAutomaticYield() external; function configureAutomaticYieldOnBehalf(address contractAddress) external; function configureVoidYield() external; function configureVoidYieldOnBehalf(address contractAddress) external; function configureClaimableGas() external; function configureClaimableGasOnBehalf(address contractAddress) external; function configureVoidGas() external; function configureVoidGasOnBehalf(address contractAddress) external; function configureGovernor(address _governor) external; function configureGovernorOnBehalf( address _newGovernor, address contractAddress ) external; // claim yield function claimYield( address contractAddress, address recipientOfYield, uint256 amount ) external returns (uint256); function claimAllYield( address contractAddress, address recipientOfYield ) external returns (uint256); // claim gas function claimAllGas( address contractAddress, address recipientOfGas ) external returns (uint256); function claimGasAtMinClaimRate( address contractAddress, address recipientOfGas, uint256 minClaimRateBips ) external returns (uint256); function claimMaxGas( address contractAddress, address recipientOfGas ) external returns (uint256); function claimGas( address contractAddress, address recipientOfGas, uint256 gasToClaim, uint256 gasSecondsToConsume ) external returns (uint256); // read functions function readClaimableYield( address contractAddress ) external view returns (uint256); function readYieldConfiguration( address contractAddress ) external view returns (uint8); function readGasParams( address contractAddress ) external view returns ( uint256 etherSeconds, uint256 etherBalance, uint256 lastUpdated, GasMode ); } interface IGovernorInfo { function governorMap(address) external view returns (address); function isAuthorized(address contractAddress) external view returns (bool); function isGovernor(address contractAddress) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is a base storage for the initialization function for upgradeable diamond facet contracts **/ library ERC721A__InitializableStorage { struct Layout { /* * Indicates that the contract has been initialized. */ bool _initialized; /* * Indicates that the contract is in the process of being initialized. */ bool _initializing; } bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.initializable.facet'); function layout() internal pure returns (Layout storage l) { bytes32 slot = STORAGE_SLOT; assembly { l.slot := slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 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 ERC721 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 ERC721 * 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 caller. * * 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); }
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.