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ERC-721
Overview
Max Total Supply
304 GEN-TOKYO
Holders
55
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 GEN-TOKYOLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Minimal Proxy Contract for 0x81bd2e6c0c1e7e898bd8c715ee9a81e4774d2f5a
Contract Name:
CRFTDERC721A
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 1000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; // ___ ___ ___ // / /\ / /\ / /\ ___ _____ // / /:/ / /::\ / /:/_ /__/\ / /::\ // / /:/ / /:/\:\ / /:/ /\ \ \:\ / /:/\:\ // / /:/ ___ / /::\ \:\ / /:/ /:/ \__\:\ / /:/ \:\ // /__/:/ / /\ /__/:/\:\_\:\ /__/:/ /:/ / /::\ /__/:/ \__\:| // \ \:\ / /:/ \__\/~|::\/:/ \ \:\/:/ / /:/\:\ \ \:\ / /:/ // \ \:\ /:/ | |:|::/ \ \::/ / /:/__\/ \ \:\ /:/ // \ \:\/:/ | |:|\/ \ \:\ /__/:/ \ \:\/:/ // \ \::/ |__|:| \ \:\ \__\/ \ \::/ // \__\/ \__\| \__\/ \__\/ import "ERC721A-Upgradeable/extensions/ERC721AQueryableUpgradeable.sol"; import "openzeppelin-contracts/contracts/utils/cryptography/MerkleProof.sol"; import "solady/auth/Ownable.sol"; import "closedsea/OperatorFilterer.sol"; import "src/utils/PaymentSplitter.sol"; import "src/interfaces/ICRFTDERC721A.sol"; /** * @title CRFTDERC721A * @author CRFTD Labs */ contract CRFTDERC721A is ERC721AQueryableUpgradeable, Ownable, PaymentSplitter, OperatorFilterer, ICRFTDERC721A { /** * @dev Prevents the first-time transfer costs for tokens near the end of large mint batches * via ERC721A from becoming too expensive due to the need to scan many storage slots. * See: https://chiru-labs.github.io/ERC721A/#/tips?id=batch-size */ uint256 private constant BATCH_MINT_LIMIT = 255; /** * @dev The boolean flag on whether the URI is pre-reveal. */ uint16 private constant PREREVEAL_ENABLED_FLAG = 1 << 0; /** * @dev The boolean flag on whether the URI is pre-reveal. */ uint16 private constant BURN_ENABLED_FLAG = 1 << 1; /** * @dev The boolean flag on whether the Mint is Paused. */ uint16 private constant MINT_PAUSED_FLAG = 1 << 2; /** * @dev The boolean flag on whether the Public Sale is enabled. */ uint16 private constant PUBLIC_SALE_ENABLED_FLAG = 1 << 3; /** * @dev The boolean flag on whether support soul-bound nfts. */ uint16 private constant SOUL_BOUND_ENABLED_FLAG = 1 << 4; /** * @dev The boolean flag on whether OpenSea operator filtering is enabled. */ uint16 private constant OPERATOR_FILTERING_ENABLED_FLAG = 1 << 5; /** * @dev The boolean flag on whether the metadata is frozen. */ uint16 private constant METADATA_IS_FROZEN_FLAG = 1 << 6; /** * @dev The boolean flag on whether the revenue split is frozen. */ uint16 private constant REVENUE_SPLIT_FROZEN_FLAG = 1 << 7; /** * @dev The boolean flag on whether the revenue split is frozen. */ uint16 private constant ROYALTY_ENABLED_FLAG = 1 << 8; /** * @dev Basis points denominator used in fee calculations. */ uint16 private constant _MAX_BPS = 10_000; /** * @dev The interface ID for EIP-2981 (royaltyInfo) */ bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; /** * @dev The interface ID for EIP-5192 (soul-bound nfts) */ bytes4 private constant _INTERFACE_ID_ERC5192 = 0xb45a3c0e; /** * @dev The address of the CRFTD Wallet for receiving the mint fee. */ address private constant CRFTD_WALLET = 0xAA151eb9839ec480bF69F5dE8Fbeaf96eEe87626; /** * @dev The fixed flat fee per mint. */ uint64 private constant FLAT_FEE = 0.00089 ether; /** * @dev The fixed flat fee percentage charged if sale price is greater than 0.05 ether. */ uint16 private constant FEE_PERCENTAGE = 300; /** * @dev The price in eth for per mint. */ uint128 public price; /** * @dev The max supply of erc721. */ uint128 public maxSupply; /** * @dev receiver of the royalites. */ address public royaltyReceiver; /** * @dev The royalty fee in basis points. */ uint16 public royaltyBPS; /** * @dev The max mint per wallet. */ uint64 public maxPerWallet; /** * @dev Packed boolean flags. */ uint16 private _flags; /** * @dev The contract base URI. */ string internal baseURI; /** * @dev The minted supply track of user for per phase */ mapping(address user => mapping(uint256 phaseIndex => uint64 numMinted)) public amountMintedForPhase; /** * @dev The contract phase setting for sale. */ PhaseSetting[] public phaseSettings; /** * @inheritdoc ICRFTDERC721A */ function init( string memory name_, string memory symbol_, string memory baseURI_, PaymentSplitter.Payees[] memory payee, PhaseSetting[] memory phases, bytes memory initData ) external initializerERC721A { ( uint128 price_, uint128 maxSupply_, uint64 maxPerWallet_, address owner_, address royaltyReceiver_, uint16 flag_, uint16 feeNumerator_ ) = decodingInitData(initData); __ERC721A_init(name_, symbol_); _initializeOwner(owner_); __PaymentSplitter_init(payee); unchecked { uint256 len = phases.length; for (uint256 i; i < len;) { phaseSettings.push(phases[i]); ++i; } } baseURI = baseURI_; price = price_; maxSupply = maxSupply_; maxPerWallet = maxPerWallet_; _flags = flag_; if (flag_ & ROYALTY_ENABLED_FLAG != 0) { _setDefaultRoyalty(royaltyReceiver_, feeNumerator_); } if (flag_ & OPERATOR_FILTERING_ENABLED_FLAG != 0) { _registerForOperatorFiltering(); } emit CRFTDCollectionInitialized(name_, symbol_, baseURI_, payee, phases, initData); } /** * @dev Ensure the mint has not paused. */ modifier mintNotPaused() { if (_flags & MINT_PAUSED_FLAG != 0) revert MintPaused(); _; } /** * @dev Ensure the token metadata has not frozen. */ modifier onlyMetadataNotFrozen() { if (_flags & METADATA_IS_FROZEN_FLAG != 0) revert MetadataIsFrozen(); _; } /** * @dev Ensures that the `quantity` does not exceed `ADDRESS_BATCH_MINT_LIMIT`. * @param quantity The number of tokens minted per address. */ modifier requireBatchMintLimit(uint64 quantity) { if (quantity > BATCH_MINT_LIMIT) revert ExceedsBatchMintLimit(); _; } /** * Reverts if token has soul-bound. */ modifier checkLock() { if (_flags & SOUL_BOUND_ENABLED_FLAG != 0) revert SoulBoundToken(); _; } /** * @inheritdoc ERC721AUpgradeable */ function _startTokenId() internal pure override returns (uint256) { return 1; } /** * @dev Decode the abi.encodePacked data of `data`. * * @return price_ The price for the token sale. * @return maxSupply_ The max supply for the token. * @return maxPerWallet_ The max mint per wallet. * @return owner_ The address of the owner. * @return royaltyReceiver_ The address of royalty receiver. * @return flag_ The flags for the features. * @return feeNumerator_ The royalty amount in bps. */ function decodingInitData(bytes memory data) private pure returns ( uint128 price_, uint128 maxSupply_, uint64 maxPerWallet_, address owner_, address royaltyReceiver_, uint16 flag_, uint16 feeNumerator_ ) { assembly { // decode initdata abi.encodePacked(uint128 price_, uint128 maxSupply_, uint64 maxPerWallet_, address owner,address recevier,uint16 feeBPS, uint16 flag) price_ := shr(128, mload(add(data, 32))) maxSupply_ := shr(128, mload(add(data, 48))) maxPerWallet_ := shr(192, mload(add(data, 64))) owner_ := shr(96, mload(add(data, 72))) royaltyReceiver_ := shr(96, mload(add(data, 92))) flag_ := shr(240, mload(add(data, 112))) feeNumerator_ := shr(240, mload(add(data, 114))) } } /** * @dev Checks public sale has started. */ function _publicSaleStarted() private view returns (bool) { return _flags & PUBLIC_SALE_ENABLED_FLAG != 0; } /** * @dev Checks token mint has paused. */ function _isMintPaused() private view returns (bool) { return _flags & MINT_PAUSED_FLAG != 0; } /** * @dev For operator filtering to be toggled on / off. */ function _operatorFilteringEnabled() internal view override returns (bool) { return _flags & OPERATOR_FILTERING_ENABLED_FLAG != 0; } /** * @inheritdoc IERC721AUpgradeable */ function setApprovalForAll(address operator, bool approved) public override(ERC721AUpgradeable, IERC721AUpgradeable) checkLock onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } /** * @inheritdoc IERC721AUpgradeable */ function approve(address operator, uint256 tokenId) public payable override(ERC721AUpgradeable, IERC721AUpgradeable) checkLock onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } /** * @inheritdoc IERC721AUpgradeable */ function transferFrom(address from, address to, uint256 tokenId) public payable override(ERC721AUpgradeable, IERC721AUpgradeable) checkLock onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } /** * @inheritdoc IERC721AUpgradeable */ function safeTransferFrom(address from, address to, uint256 tokenId) public payable override(ERC721AUpgradeable, IERC721AUpgradeable) checkLock onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } /** * @inheritdoc IERC721AUpgradeable */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public payable override(ERC721AUpgradeable, IERC721AUpgradeable) checkLock onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } /** * @dev Ensure user can't exceed global `maxSupply` and `maxPerWallet`. * * @param user The address of user * @param quantity The quantity of mint token */ function _checkGlobalMintConditions(address user, uint64 quantity) private view { if (_totalMinted() + quantity > maxSupply) { revert MaxMinted(); } if (maxPerWallet != 0 && _numberMinted(user) + quantity > maxPerWallet ) { revert ExceedsLimit(); } } /** * @dev Checking the fee for mint and transfer fee to crftd wallet. * * @param quantity_ The quantity of mint token * @param price_ The price of per mint * */ function _mintFee(uint64 quantity_, uint128 price_) private { // Mint fee of the token uint256 mintValue = price_ * quantity_; // If mint price is greater than 0.05 ether than charged additional 3% fee per mint else 0. uint256 additionalFee = price_ > 0.05 ether ? (mintValue * FEE_PERCENTAGE) / _MAX_BPS : 0; // Flat fee for mint uint256 flatFee = uint256(FLAT_FEE) * quantity_; // Total fee for the mint uint256 crftdFee = flatFee + additionalFee; if (msg.value != crftdFee + mintValue) { revert IncorrectValue(); } // Transfer fee to crftd wallet SafeTransferLib.safeTransferETH(CRFTD_WALLET, crftdFee); } /** * @dev Check the all condition is fulfilled of the given phase. * * @param index The index of the sale phase * @param user The address of the user * @param quantity The quantity of mint token * @param proof An array of proofs */ function _checkPhaseMintConditions(uint256 index, address user, uint64 quantity, bytes32[] calldata proof) private view { PhaseSetting storage phase = phaseSettings[index]; if (phase.isActive == 0) revert InactivePhase(); if (phase.mintedSupply + quantity > phase.maxSupply) revert MaxMinted(); if (phase.merkleRoot != 0) { if (!MerkleProof.verify(proof, phase.merkleRoot, keccak256(abi.encodePacked(user)))) { revert InvalidProof(); } } if (amountMintedForPhase[user][index] + quantity > phase.maxPerWallet && phase.maxPerWallet != 0) { revert ExceedsLimit(); } } /** * @inheritdoc IERC721AUpgradeable */ function supportsInterface(bytes4 interfaceId) public view override(ERC721AUpgradeable, IERC721AUpgradeable) returns (bool) { uint16 flag = _flags; return type(ICRFTDERC721A).interfaceId == interfaceId || ERC721AUpgradeable.supportsInterface(interfaceId) || (flag & ROYALTY_ENABLED_FLAG == ROYALTY_ENABLED_FLAG && interfaceId == _INTERFACE_ID_ERC2981) || (flag & SOUL_BOUND_ENABLED_FLAG == SOUL_BOUND_ENABLED_FLAG && interfaceId == _INTERFACE_ID_ERC5192); } /** * @inheritdoc ICRFTDERC721A */ function mintPhase(uint256 index, uint64 quantity, bytes32[] calldata proof) external payable mintNotPaused requireBatchMintLimit(quantity) { _checkPhaseMintConditions(index, msg.sender, quantity, proof); _checkGlobalMintConditions(msg.sender, quantity); PhaseSetting storage phase = phaseSettings[index]; // updating mint supply of phase phase.mintedSupply = phase.mintedSupply + quantity; // updating user mint supply of the phase amountMintedForPhase[msg.sender][index] = amountMintedForPhase[msg.sender][index] + quantity; // calculating the mint fee and check msg.value is correct _mintFee(quantity, phase.price); uint256 fromTokenId = _nextTokenId(); _mint(msg.sender, quantity); emit Minted(msg.sender, msg.value, quantity, fromTokenId); } /** * @inheritdoc ICRFTDERC721A */ function publicMint(uint64 quantity) external payable mintNotPaused requireBatchMintLimit(quantity) { if (!_publicSaleStarted()) revert PublicSaleNotStarted(); _checkGlobalMintConditions(msg.sender, quantity); // calculating the mint fee and check msg.value is corrects _mintFee(quantity, price); uint256 fromTokenId = _nextTokenId(); _mint(msg.sender, quantity); emit Minted(msg.sender, msg.value, quantity, fromTokenId); } /** * @inheritdoc ICRFTDERC721A */ function setPublicSaleSetting(uint128 price_, uint64 maxPerWallet_) external onlyOwner { if (price != price_) { price = price_; emit SalePriceSet(price_); } if (maxPerWallet != maxPerWallet_) { maxPerWallet = maxPerWallet_; emit MaxPerWalletSet(maxPerWallet_); } } /** * @inheritdoc ICRFTDERC721A */ function burn(uint256 tokenId) external { if (_flags & BURN_ENABLED_FLAG == 0) revert BurnNotAllowed(); _burn(tokenId, true); } /** * @inheritdoc IERC721AUpgradeable */ function tokenURI(uint256 tokenId) public view override(ERC721AUpgradeable, IERC721AUpgradeable) returns (string memory) { return string.concat(super.tokenURI(tokenId), ".json"); } /** * @inheritdoc ICRFTDERC721A */ function setOperatorFilteringEnabled(bool operatorFilteringEnabled_) external onlyOwner { if (_operatorFilteringEnabled() != operatorFilteringEnabled_) { _flags ^= OPERATOR_FILTERING_ENABLED_FLAG; if (operatorFilteringEnabled_) { _registerForOperatorFiltering(); } } emit OperatorFilteringEnabledSet(operatorFilteringEnabled_); } /** * @dev Returns `baseURI` of the token. */ function _baseURI() internal view override returns (string memory) { return baseURI; } /** * @inheritdoc ICRFTDERC721A */ function setBaseURI(string memory baseURI_) external onlyOwner onlyMetadataNotFrozen { emit BaseTokenURIUpdated(baseURI, baseURI_); baseURI = baseURI_; } /** * @inheritdoc ICRFTDERC721A */ function setPublicSaleStatus(bool status) external onlyOwner { if (_publicSaleStarted() != status) { _flags = _flags ^ PUBLIC_SALE_ENABLED_FLAG; } emit PublicSaleEnabledSet(status); } /** * @inheritdoc ICRFTDERC721A */ function freezeMetadata() external onlyOwner { _flags = _flags | METADATA_IS_FROZEN_FLAG; } /** * @inheritdoc ICRFTDERC721A */ function freezeRevenueSplit() external onlyOwner { _flags = _flags | REVENUE_SPLIT_FROZEN_FLAG; } /** * @inheritdoc ICRFTDERC721A */ function setMintPause(bool status) external onlyOwner { if (_isMintPaused() != status) { _flags = _flags ^ MINT_PAUSED_FLAG; } emit MintPauseEnabledSet(status); } /** * @inheritdoc ICRFTDERC721A */ function airdrop(address[] calldata to, uint64[] calldata quantity) external payable onlyOwner { uint256 len = to.length; if (len != quantity.length) revert ArrayLengthMismatch(); uint256 fromTokenId = _nextTokenId(); for (uint256 i; i != len;) { uint64 quantity_ = quantity[i]; if (_totalMinted() + quantity_ > maxSupply) revert ExceedsLimit(); _mint(to[i], quantity_); unchecked { ++i; } } emit Airdropped(to, quantity, fromTokenId); } /** * @dev Helper function for sets token royalty. * * @param receiver_ The address of receiver of royalty * @param bps_ The royalty points (in basic points) */ function _setDefaultRoyalty(address receiver_, uint16 bps_) private { if (receiver_ == address(0)) revert ZeroAddress(); if (bps_ > _MAX_BPS) revert ExceedMaxBPS(); royaltyReceiver = receiver_; royaltyBPS = bps_; } /** * @inheritdoc ICRFTDERC721A */ function setMaxSupply(uint128 supply) external onlyOwner onlyMetadataNotFrozen { if (_totalMinted() > supply || supply > maxSupply) revert NotAllowed(); maxSupply = supply; emit MaxSupplySet(supply); } /** * @inheritdoc ICRFTDERC721A */ function setRoyalty(address receiver_, uint16 bps_) external onlyOwner { _flags = _flags | ROYALTY_ENABLED_FLAG; _setDefaultRoyalty(receiver_, bps_); } /** * @inheritdoc ICRFTDERC721A */ function revealTokenURI(string memory uri) external onlyOwner { if (_flags & PREREVEAL_ENABLED_FLAG == 0) revert AlreadyReveal(); _flags = _flags ^ PREREVEAL_ENABLED_FLAG; emit BaseTokenURIUpdated(baseURI, uri); baseURI = uri; } /** * @inheritdoc ICRFTDERC721A */ function addPhases(PhaseSetting[] calldata _phase) external onlyOwner { uint256 len = _phase.length; for (uint256 i; i < len;) { phaseSettings.push(_phase[i]); unchecked { ++i; } } emit PhaseAdded(_phase); } /** * @inheritdoc ICRFTDERC721A */ function setPhaseSettings( uint256 index, uint128 price_, uint128 maxSupply_, uint64 maxPerWallet_, uint64 isActive_, bytes32 root_ ) external onlyOwner { PhaseSetting storage phase = phaseSettings[index]; phase.price = price_; phase.maxSupply = maxSupply_; phase.maxPerWallet = maxPerWallet_; phase.isActive = isActive_; phase.merkleRoot = root_; emit PhaseSettingUpdate(index, price_, maxSupply_, maxPerWallet_, isActive_, root_); } /** * @inheritdoc ICRFTDERC721A */ function setPhaseStatus(uint256[] calldata indexs, bool[] calldata status) external onlyOwner { uint256 indexLen = indexs.length; if (indexLen != status.length) revert ArrayLengthMismatch(); for (uint256 i; i < indexLen;) { uint64 value = status[i] ? 1 : 0; phaseSettings[indexs[i]].isActive = value; unchecked { ++i; } } emit PhaseStatusSet(indexs, status); } /** * @inheritdoc ICRFTDERC721A */ function changeRevenueSplit(Payees[] memory payees_) external onlyOwner { if (_flags & REVENUE_SPLIT_FROZEN_FLAG != 0) revert RevenueSplitIsFrozen(); _setPayees(payees_); emit RevenueSplitUpdated(payees_); } /** * @inheritdoc ICRFTDERC721A */ function royaltyInfo(uint256, uint256 salePrice) public view returns (address recipient_, uint256 royaltyAmount_) { recipient_ = royaltyReceiver; royaltyAmount_ = (salePrice * royaltyBPS) / _MAX_BPS; } /** * @inheritdoc ICRFTDERC721A */ function locked(uint256) external view returns (bool status) { status = _flags & SOUL_BOUND_ENABLED_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isRevenueSplitFrozen() external view returns (bool status) { status = _flags & REVENUE_SPLIT_FROZEN_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isMetadataFrozen() external view returns (bool status) { status = _flags & METADATA_IS_FROZEN_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isMintPaused() external view returns (bool status) { status = _flags & MINT_PAUSED_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isBurnable() external view returns (bool status) { status = _flags & BURN_ENABLED_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isPreReveal() external view returns (bool status) { status = _flags & PREREVEAL_ENABLED_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isPublicSaleStart() external view returns (bool status) { status = _flags & PUBLIC_SALE_ENABLED_FLAG != 0; } /** * @inheritdoc ICRFTDERC721A */ function isOperatorFiltering() external view returns (bool status) { status = _flags & OPERATOR_FILTERING_ENABLED_FLAG != 0; } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721AQueryableUpgradeable.sol'; import '../ERC721AUpgradeable.sol'; import '../ERC721A__Initializable.sol'; /** * @title ERC721AQueryable. * * @dev ERC721A subclass with convenience query functions. */ abstract contract ERC721AQueryableUpgradeable is ERC721A__Initializable, ERC721AUpgradeable, IERC721AQueryableUpgradeable { function __ERC721AQueryable_init() internal onlyInitializingERC721A { __ERC721AQueryable_init_unchained(); } function __ERC721AQueryable_init_unchained() internal onlyInitializingERC721A {} /** * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. * * If the `tokenId` is out of bounds: * * - `addr = address(0)` * - `startTimestamp = 0` * - `burned = false` * - `extraData = 0` * * If the `tokenId` is burned: * * - `addr = <Address of owner before token was burned>` * - `startTimestamp = <Timestamp when token was burned>` * - `burned = true` * - `extraData = <Extra data when token was burned>` * * Otherwise: * * - `addr = <Address of owner>` * - `startTimestamp = <Timestamp of start of ownership>` * - `burned = false` * - `extraData = <Extra data at start of ownership>` */ function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) { TokenOwnership memory ownership; if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) { return ownership; } ownership = _ownershipAt(tokenId); if (ownership.burned) { return ownership; } return _ownershipOf(tokenId); } /** * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. * See {ERC721AQueryable-explicitOwnershipOf} */ function explicitOwnershipsOf(uint256[] calldata tokenIds) external view virtual override returns (TokenOwnership[] memory) { unchecked { uint256 tokenIdsLength = tokenIds.length; TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength); for (uint256 i; i != tokenIdsLength; ++i) { ownerships[i] = explicitOwnershipOf(tokenIds[i]); } return ownerships; } } /** * @dev Returns an array of token IDs owned by `owner`, * in the range [`start`, `stop`) * (i.e. `start <= tokenId < stop`). * * This function allows for tokens to be queried if the collection * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. * * Requirements: * * - `start < stop` */ function tokensOfOwnerIn( address owner, uint256 start, uint256 stop ) external view virtual override returns (uint256[] memory) { unchecked { if (start >= stop) revert InvalidQueryRange(); uint256 tokenIdsIdx; uint256 stopLimit = _nextTokenId(); // Set `start = max(start, _startTokenId())`. if (start < _startTokenId()) { start = _startTokenId(); } // Set `stop = min(stop, stopLimit)`. if (stop > stopLimit) { stop = stopLimit; } uint256 tokenIdsMaxLength = balanceOf(owner); // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`, // to cater for cases where `balanceOf(owner)` is too big. if (start < stop) { uint256 rangeLength = stop - start; if (rangeLength < tokenIdsMaxLength) { tokenIdsMaxLength = rangeLength; } } else { tokenIdsMaxLength = 0; } uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength); if (tokenIdsMaxLength == 0) { return tokenIds; } // We need to call `explicitOwnershipOf(start)`, // because the slot at `start` may not be initialized. TokenOwnership memory ownership = explicitOwnershipOf(start); address currOwnershipAddr; // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`. // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range. if (!ownership.burned) { currOwnershipAddr = ownership.addr; } for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) { ownership = _ownershipAt(i); if (ownership.burned) { continue; } if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { tokenIds[tokenIdsIdx++] = i; } } // Downsize the array to fit. assembly { mstore(tokenIds, tokenIdsIdx) } return tokenIds; } } /** * @dev Returns an array of token IDs owned by `owner`. * * This function scans the ownership mapping and is O(`totalSupply`) in complexity. * It is meant to be called off-chain. * * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into * multiple smaller scans if the collection is large enough to cause * an out-of-gas error (10K collections should be fine). */ function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) { unchecked { uint256 tokenIdsIdx; address currOwnershipAddr; uint256 tokenIdsLength = balanceOf(owner); uint256[] memory tokenIds = new uint256[](tokenIdsLength); TokenOwnership memory ownership; for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) { ownership = _ownershipAt(i); if (ownership.burned) { continue; } if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { tokenIds[tokenIdsIdx++] = i; } } return tokenIds; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The tree and the proofs can be generated using our * https://github.com/OpenZeppelin/merkle-tree[JavaScript library]. * You will find a quickstart guide in the readme. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. * OpenZeppelin's JavaScript library generates merkle trees that are safe * against this attack out of the box. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Calldata version of {verify} * * _Available since v4.7._ */ function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) { return processProofCalldata(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Calldata version of {processProof} * * _Available since v4.7._ */ function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function multiProofVerify( bytes32[] memory proof, bool[] memory proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProof(proof, proofFlags, leaves) == root; } /** * @dev Calldata version of {multiProofVerify} * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function multiProofVerifyCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProofCalldata(proof, proofFlags, leaves) == root; } /** * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false * respectively. * * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer). * * _Available since v4.7._ */ function processMultiProof( bytes32[] memory proof, bool[] memory proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]) : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { unchecked { return hashes[totalHashes - 1]; } } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } /** * @dev Calldata version of {processMultiProof}. * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function processMultiProofCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]) : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { unchecked { return hashes[totalHashes - 1]; } } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _efficientHash(a, b) : _efficientHash(b, a); } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Simple single owner authorization mixin. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol) /// @dev While the ownable portion follows [EIP-173](https://eips.ethereum.org/EIPS/eip-173) /// for compatibility, the nomenclature for the 2-step ownership handover /// may be unique to this codebase. abstract contract Ownable { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The caller is not authorized to call the function. error Unauthorized(); /// @dev The `newOwner` cannot be the zero address. error NewOwnerIsZeroAddress(); /// @dev The `pendingOwner` does not have a valid handover request. error NoHandoverRequest(); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* EVENTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The ownership is transferred from `oldOwner` to `newOwner`. /// This event is intentionally kept the same as OpenZeppelin's Ownable to be /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173), /// despite it not being as lightweight as a single argument event. event OwnershipTransferred(address indexed oldOwner, address indexed newOwner); /// @dev An ownership handover to `pendingOwner` has been requested. event OwnershipHandoverRequested(address indexed pendingOwner); /// @dev The ownership handover to `pendingOwner` has been canceled. event OwnershipHandoverCanceled(address indexed pendingOwner); /// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`. uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE = 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0; /// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`. uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE = 0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d; /// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`. uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE = 0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* STORAGE */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The owner slot is given by: `not(_OWNER_SLOT_NOT)`. /// It is intentionally choosen to be a high value /// to avoid collision with lower slots. /// The choice of manual storage layout is to enable compatibility /// with both regular and upgradeable contracts. uint256 private constant _OWNER_SLOT_NOT = 0x8b78c6d8; /// The ownership handover slot of `newOwner` is given by: /// ``` /// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED)) /// let handoverSlot := keccak256(0x00, 0x20) /// ``` /// It stores the expiry timestamp of the two-step ownership handover. uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Initializes the owner directly without authorization guard. /// This function must be called upon initialization, /// regardless of whether the contract is upgradeable or not. /// This is to enable generalization to both regular and upgradeable contracts, /// and to save gas in case the initial owner is not the caller. /// For performance reasons, this function will not check if there /// is an existing owner. function _initializeOwner(address newOwner) internal virtual { /// @solidity memory-safe-assembly assembly { // Clean the upper 96 bits. newOwner := shr(96, shl(96, newOwner)) // Store the new value. sstore(not(_OWNER_SLOT_NOT), newOwner) // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner) } } /// @dev Sets the owner directly without authorization guard. function _setOwner(address newOwner) internal virtual { /// @solidity memory-safe-assembly assembly { let ownerSlot := not(_OWNER_SLOT_NOT) // Clean the upper 96 bits. newOwner := shr(96, shl(96, newOwner)) // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner) // Store the new value. sstore(ownerSlot, newOwner) } } /// @dev Throws if the sender is not the owner. function _checkOwner() internal view virtual { /// @solidity memory-safe-assembly assembly { // If the caller is not the stored owner, revert. if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) { mstore(0x00, 0x82b42900) // `Unauthorized()`. revert(0x1c, 0x04) } } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PUBLIC UPDATE FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Allows the owner to transfer the ownership to `newOwner`. function transferOwnership(address newOwner) public payable virtual onlyOwner { /// @solidity memory-safe-assembly assembly { if iszero(shl(96, newOwner)) { mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`. revert(0x1c, 0x04) } } _setOwner(newOwner); } /// @dev Allows the owner to renounce their ownership. function renounceOwnership() public payable virtual onlyOwner { _setOwner(address(0)); } /// @dev Request a two-step ownership handover to the caller. /// The request will be automatically expire in 48 hours (172800 seconds) by default. function requestOwnershipHandover() public payable virtual { unchecked { uint256 expires = block.timestamp + ownershipHandoverValidFor(); /// @solidity memory-safe-assembly assembly { // Compute and set the handover slot to `expires`. mstore(0x0c, _HANDOVER_SLOT_SEED) mstore(0x00, caller()) sstore(keccak256(0x0c, 0x20), expires) // Emit the {OwnershipHandoverRequested} event. log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller()) } } } /// @dev Cancels the two-step ownership handover to the caller, if any. function cancelOwnershipHandover() public payable virtual { /// @solidity memory-safe-assembly assembly { // Compute and set the handover slot to 0. mstore(0x0c, _HANDOVER_SLOT_SEED) mstore(0x00, caller()) sstore(keccak256(0x0c, 0x20), 0) // Emit the {OwnershipHandoverCanceled} event. log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller()) } } /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`. /// Reverts if there is no existing ownership handover requested by `pendingOwner`. function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner { /// @solidity memory-safe-assembly assembly { // Compute and set the handover slot to 0. mstore(0x0c, _HANDOVER_SLOT_SEED) mstore(0x00, pendingOwner) let handoverSlot := keccak256(0x0c, 0x20) // If the handover does not exist, or has expired. if gt(timestamp(), sload(handoverSlot)) { mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`. revert(0x1c, 0x04) } // Set the handover slot to 0. sstore(handoverSlot, 0) } _setOwner(pendingOwner); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PUBLIC READ FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns the owner of the contract. function owner() public view virtual returns (address result) { /// @solidity memory-safe-assembly assembly { result := sload(not(_OWNER_SLOT_NOT)) } } /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`. function ownershipHandoverExpiresAt(address pendingOwner) public view virtual returns (uint256 result) { /// @solidity memory-safe-assembly assembly { // Compute the handover slot. mstore(0x0c, _HANDOVER_SLOT_SEED) mstore(0x00, pendingOwner) // Load the handover slot. result := sload(keccak256(0x0c, 0x20)) } } /// @dev Returns how long a two-step ownership handover is valid for in seconds. function ownershipHandoverValidFor() public view virtual returns (uint64) { return 48 * 3600; } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* MODIFIERS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Marks a function as only callable by the owner. modifier onlyOwner() virtual { _checkOwner(); _; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Optimized and flexible operator filterer to abide to OpenSea's /// mandatory on-chain royalty enforcement in order for new collections to /// receive royalties. /// For more information, see: /// See: https://github.com/ProjectOpenSea/operator-filter-registry abstract contract OperatorFilterer { /// @dev The default OpenSea operator blocklist subscription. address internal constant _DEFAULT_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6; /// @dev The OpenSea operator filter registry. address internal constant _OPERATOR_FILTER_REGISTRY = 0x000000000000AAeB6D7670E522A718067333cd4E; /// @dev Registers the current contract to OpenSea's operator filter, /// and subscribe to the default OpenSea operator blocklist. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering() internal virtual { _registerForOperatorFiltering(_DEFAULT_SUBSCRIPTION, true); } /// @dev Registers the current contract to OpenSea's operator filter. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe) internal virtual { /// @solidity memory-safe-assembly assembly { let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`. // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty. subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy)) for {} iszero(subscribe) {} { if iszero(subscriptionOrRegistrantToCopy) { functionSelector := 0x4420e486 // `register(address)`. break } functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`. break } // Store the function selector. mstore(0x00, shl(224, functionSelector)) // Store the `address(this)`. mstore(0x04, address()) // Store the `subscriptionOrRegistrantToCopy`. mstore(0x24, subscriptionOrRegistrantToCopy) // Register into the registry. if iszero(call(gas(), _OPERATOR_FILTER_REGISTRY, 0, 0x00, 0x44, 0x00, 0x04)) { // If the function selector has not been overwritten, // it is an out-of-gas error. if eq(shr(224, mload(0x00)), functionSelector) { // To prevent gas under-estimation. revert(0, 0) } } // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, because of Solidity's memory size limits. mstore(0x24, 0) } } /// @dev Modifier to guard a function and revert if the caller is a blocked operator. modifier onlyAllowedOperator(address from) virtual { if (from != msg.sender) { if (!_isPriorityOperator(msg.sender)) { if (_operatorFilteringEnabled()) _revertIfBlocked(msg.sender); } } _; } /// @dev Modifier to guard a function from approving a blocked operator.. modifier onlyAllowedOperatorApproval(address operator) virtual { if (!_isPriorityOperator(operator)) { if (_operatorFilteringEnabled()) _revertIfBlocked(operator); } _; } /// @dev Helper function that reverts if the `operator` is blocked by the registry. function _revertIfBlocked(address operator) private view { /// @solidity memory-safe-assembly assembly { // Store the function selector of `isOperatorAllowed(address,address)`, // shifted left by 6 bytes, which is enough for 8tb of memory. // We waste 6-3 = 3 bytes to save on 6 runtime gas (PUSH1 0x224 SHL). mstore(0x00, 0xc6171134001122334455) // Store the `address(this)`. mstore(0x1a, address()) // Store the `operator`. mstore(0x3a, operator) // `isOperatorAllowed` always returns true if it does not revert. if iszero(staticcall(gas(), _OPERATOR_FILTER_REGISTRY, 0x16, 0x44, 0x00, 0x00)) { // Bubble up the revert if the staticcall reverts. returndatacopy(0x00, 0x00, returndatasize()) revert(0x00, returndatasize()) } // We'll skip checking if `from` is inside the blacklist. // Even though that can block transferring out of wrapper contracts, // we don't want tokens to be stuck. // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, if less than 8tb of memory is used. mstore(0x3a, 0) } } /// @dev For deriving contracts to override, so that operator filtering /// can be turned on / off. /// Returns true by default. function _operatorFilteringEnabled() internal view virtual returns (bool) { return true; } /// @dev For deriving contracts to override, so that preferred marketplaces can /// skip operator filtering, helping users save gas. /// Returns false for all inputs by default. function _isPriorityOperator(address) internal view virtual returns (bool) { return false; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; import "solady/utils/SafeTransferLib.sol"; import "src/interfaces/IPaymentSplitter.sol"; contract PaymentSplitter is IPaymentSplitter { /** * @dev An array containing all `Payees` struct. */ Payees[] public payees; /** * @dev A lock for the prevently contract reentrant call. */ uint256 private locked; /** * @dev Prevent reentrant calls to a function. */ modifier nonReentrant() { if (locked != 0) { revert Reentrancy(); } locked = 1; _; locked = 0; } /** * @dev Initiliazer function * * @param payees_ An array of the `Payees` struct * */ function __PaymentSplitter_init(Payees[] memory payees_) internal { _setPayees(payees_); } /** * @dev Updates the `payees` array with the given array of `Payees` struct. * * @param payees_ An array of the `Payees` struct * * Note: The sum of shares must be equal to 100, otherwise the function reverts. * This function overwrites the existing payees array with new given array. */ function _setPayees(Payees[] memory payees_) internal { uint256 len = payees_.length; assembly { // updating the payees array length sstore(payees.slot, len) } // checking for total sum of share uint96 total; for (uint256 i = 0; i < len;) { total = total + payees_[i].share; _addPayee(payees_[i].account, payees_[i].share, i); unchecked { ++i; } } // ensuring the total sum of all account shares is 100 if (total != 100) { revert InvalidShare(); } } /** * @dev Helper function for the override data of payee at given index. * * @param account_ The address of the account * @param share_ The share revenue spliting percentage. * @param index The index of array */ function _addPayee(address account_, uint96 share_, uint256 index) private { if (account_ == address(0)) { revert ZeroAddress(); } if (share_ == 0) { revert ZeroShare(); } payees[index] = Payees({account: account_, share: share_}); } /** * @dev Transfers collected `ETH` to `payees` based on their percentage shares. * * Note: This is a push pattern for withdrawing `ETH`. * If any payee does not accept `ETH`, this function will revert. */ function withdraw() external nonReentrant { uint256 balance = address(this).balance; uint256 len = payees.length; for (uint256 i; i < len;) { address user = payees[i].account; uint256 value = (balance * payees[i].share) / 100; SafeTransferLib.safeTransferETH(user, value); emit Withdrawn(user, value); unchecked { ++i; } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; import "src/utils/PaymentSplitter.sol"; interface ICRFTDERC721A { /** * @dev Emitted when the `baseTokenURI` is set. * @param fromBaseURI The current base URI of the collection. * @param toBaseURI The updated base URI of the collection. */ event BaseTokenURIUpdated(string fromBaseURI, string toBaseURI); /** * @dev Emitted when the metadata is frozen (e.g.: `baseTokenURI` and `maxSupply` can no longer be changed). * @param baseURI The base URI of the collection. * @param maxSupply The maxSupply of the collection. */ event MetadataFrozen(string baseURI, uint176 maxSupply); /** * @dev Emitted when the `operatorFilteringEnabled` is set. * @param operatorFilteringEnabled_ The boolean value. */ event OperatorFilteringEnabledSet(bool operatorFilteringEnabled_); /** * @dev Emitted when the `publicSaleEnabled` is set. * @param publicSaleEnabled_ The boolean value. */ event PublicSaleEnabledSet(bool publicSaleEnabled_); /** * @dev Emitted when the `mintPaused` is set. * @param mintPauseEnabled_ The boolean value. */ event MintPauseEnabledSet(bool mintPauseEnabled_); /** * @dev Emitted when the token `tokenRoyalty` is set. * @param tokenId The uint256 value. * @param receiver The address of royalty receiver. * @param bps The new royalty, measured in basis points. */ event TokenRoyaltySet(uint256 tokenId, address receiver, uint96 bps); /** * @dev Emitted upon a mint. * @param to The address to mint to. * @param value The total value in `ETH` for mint. * @param quantity The number of minted. * @param fromTokenId The first token ID minted. */ event Minted(address to, uint256 value, uint256 quantity, uint256 fromTokenId); /** * @dev Emitted upon an airdrop. * @param to The recipients of the airdrop. * @param quantity The number of tokens airdropped to each address in `to`. * @param fromTokenId The first token ID minted to the first address in `to`. */ event Airdropped(address[] to, uint64[] quantity, uint256 fromTokenId); /** * @dev Emitted when the token `maxSupply` updates. * @param supply The maxSupply of the collection. */ event MaxSupplySet(uint128 supply); /** * @dev Emitted when the `revunueSplit` updates. * @param payee The payee of the collection. */ event RevenueSplitUpdated(PaymentSplitter.Payees[] payee); /** * @dev Emitted when the `phaseSetting` updates. * * @param index The index of phase. * @param price The new price for the phase. * @param maxSupply The new max supply for the phase. * @param maxPerWallet The new max per wallet for the phase. * @param isActive The new active setting for the phase. * @param root The new merkle root for the phase. * */ event PhaseSettingUpdate( uint256 index, uint128 price, uint128 maxSupply, uint64 maxPerWallet, uint64 isActive, bytes32 root ); /** * @dev Emitted when the added new `phase`. * @param phases The phases of the collection */ event PhaseAdded(PhaseSetting[] phases); /** * @dev Emitted when the `phase` is set. * @param index The index of the phases. * @param status The boolean value. */ event PhaseStatusSet(uint256[] index, bool[] status); /** * @dev Emitted upon initialization. * @param name_ Name of the collection. * @param symbol_ Symbol of the collection. * @param baseURI_ Base URI. * @param payees_ Payees of the collection. * @param phase_ PhaseSetting of the collection. * @param initData The encoded data of the abi.encodePacked(uint128(price), uint128(maxSupply), uint64(maxPerWallet), address(owner), address(royaltyRecevicer), uint16(flag), uint16(feeNumerator)). */ event CRFTDCollectionInitialized( string name_, string symbol_, string baseURI_, PaymentSplitter.Payees[] payees_, PhaseSetting[] phase_, bytes initData ); /** * @dev Emitted when the `phase` is set. * @param quantity The max quantity of per wallet. */ event MaxPerWalletSet(uint64 quantity); /** * @dev Emitted when the public sale price is set. * @param price_ The price of mint token. */ event SalePriceSet(uint128 price_); /** * @dev The contract has already initialized. */ error AlreadyInitialized(); /** * @dev The given merkle proof is invalid. */ error InvalidProof(); /** * @dev The `maxSupply` has reached. */ error MaxMinted(); /** * @dev The given value is incorrect. */ error IncorrectValue(); /** * @dev The given value greater than max bps. */ error ExceedMaxBPS(); /** * @dev The token is not burnable. */ error BurnNotAllowed(); /** * The action is not allowed. */ error NotAllowed(); /** * @dev The wallet reached their max limit. */ error ExceedsLimit(); /** * @dev The token has already revealed. */ error AlreadyReveal(); /** * @dev The token mint is paused. */ error MintPaused(); /** * @dev The given phase is inactive for the mint. */ error InactivePhase(); /** * @dev The public sale of token has not started yet. */ error PublicSaleNotStarted(); /** * @dev The metadata of token is frozen and cannot be changed. */ error MetadataIsFrozen(); /** * @dev The revenue split is frozen and cannot be changed. */ error RevenueSplitIsFrozen(); /** * @dev The mint `quantity` cannot exceed `BATCH_MINT_LIMIT` tokens. */ error ExceedsBatchMintLimit(); /** * @dev When given array length are not same. */ error ArrayLengthMismatch(); /** * @dev Token is soul-bound and cannot be transferred. */ error SoulBoundToken(); struct PhaseSetting { /// @dev price for per mint uint128 price; /// @dev phase supply uint128 maxSupply; /// @dev tracks the minted supply uint128 mintedSupply; /// @dev wallet max mint per wallet (0 for unlimited mint) uint64 maxPerWallet; /// @dev whether the phase is active uint64 isActive; /// @dev root for whitelist ( if applicable, otherwise bytes32(0)) bytes32 merkleRoot; } /** * @dev Emitted upon initialization. * @param name_ Name of the collection. * @param symbol_ Symbol of the collection. * @param tokenURI_ Base URI. * @param payee_ Payee of the collection. * @param phases_ PhaseSetting of the collection. * @param initData_ The encoded data of the abi.encodePacked(uint128(price), uint128(maxSupply), uint64(maxPerWallet), address(owner), address(royaltyRecevicer), uint16(flag), uint16(feeNumerator)). * */ function init( string memory name_, string memory symbol_, string memory tokenURI_, PaymentSplitter.Payees[] memory payee_, PhaseSetting[] memory phases_, bytes memory initData_ ) external; /** * @dev Mints `quantity` tokens to addrress `to` * Each token will be assigned a token ID that is consecutively increasing. * @param index Index of mint phase. * @param quantity Number of tokens to mint. * @param proof Proofs of merkleroot if whitelist is enabled else empty */ function mintPhase(uint256 index, uint64 quantity, bytes32[] calldata proof) external payable; /** * @dev Mints `quantity` tokens to each of the addresses in `to`. * * @param to Array of Address to mint. * @param quantity Array of quantity of tokens to mint. * * Note: only callable by contract owner. */ function airdrop(address[] calldata to, uint64[] calldata quantity) external payable; /** * @dev Mints the specified quantity of tokens for the caller. * * @param quantity Number of tokens to mint. */ function publicMint(uint64 quantity) external payable; /** * @dev Equivalent to `_burn(tokenId, false)`. * * Note: Only callable if `burnFlag` is enabled else will revert. */ function burn(uint256 tokenId) external; /** * @dev Sets whether OpenSea operator filtering is enabled. * * @param operatorFilteringEnabled_ The boolean value. * Note: Only callable by contract owner. */ function setOperatorFilteringEnabled(bool operatorFilteringEnabled_) external; /** * @dev Sets the base URI for the token metadata. * * @param baseURI The base URI to set. * Note: Only callable by contract owner when metadata is not frozen. */ function setBaseURI(string memory baseURI) external; /** * @dev Sets public mint sale status to the specified value. * * @param status The boolean value. * * Note: Only callable by contract owner. */ function setPublicSaleStatus(bool status) external; /** * @dev Sets mint pause status to the specified value. * * @param status The boolean value. * * Note: Only callable by contract owner. */ function setMintPause(bool status) external; /** * @dev Freezes the metadata for the tokens, preventing further updates. * * Note: Only callable by contract owner. */ function freezeMetadata() external; /** * @dev Freezes the revenue split for the token sales, preventing further updates. * * Note: Only callable by contract owner. */ function freezeRevenueSplit() external; /** * @dev Sets mint sale price and max per wallet to the specified value. * * @param price_ The new price to mint token. * @param maxPerWallet_ The new max limit for the one address. * * Note: Only callable by owner. */ function setPublicSaleSetting(uint128 price_, uint64 maxPerWallet_) external; /** * @dev Sets the maximum supply of the tokens to the specified value. * * @param supply The new maximum supply. * * Note: Only able to decrease max supply when metadata is not frozen. * Only callable by owner. */ function setMaxSupply(uint128 supply) external; /** * @dev Sets the maximum number of tokens that can be owned by a single wallet. * * @param number The new maximum number of tokens per wallet */ // function setMaxPerWallet(uint64 number) external; /** * @dev Sets royalty amount in bps (basis points). * * @param receiver The receiver address of the royalty. * @param bps The new royalty basis points to be set. * * Note: Only callable by owner. */ function setRoyalty(address receiver, uint16 bps) external; /** * @dev Sets the revealed token URI for the tokens; * * @param uri The new baseURI of the collection. * * Note: Only callable by owner. */ function revealTokenURI(string memory uri) external; /** * @dev Adds new phases for the token sale. * * @param _phase An array of `PhaseSetting` struct. * * Note: Only callble by owner. */ function addPhases(PhaseSetting[] calldata _phase) external; /** * @dev Sets the settings for a specific phase of the token sale. * * @param index The index of phase. * @param price_ The new price for the phase. * @param maxSupply_ The new max supply for the phase. * @param maxPerWallet_ The new max per wallet for the phase. * @param isActive_ The new active setting for the phase. * @param root_ The new merkle root for the phase. * * Note: Only callable by owner. * */ function setPhaseSettings( uint256 index, uint128 price_, uint128 maxSupply_, uint64 maxPerWallet_, uint64 isActive_, bytes32 root_ ) external; /** * @dev Sets the phase status of the token sale. * * @param indexs An array of the index of the phase. * @param status An array of boolean values for the phase. * * Note: Only callable by owner. */ function setPhaseStatus(uint256[] calldata indexs, bool[] calldata status) external; /** * @dev Changes the revenue split among the specified payees. * * @param payee An array of `Payees` struct. * * Note: Only callable by owner. */ function changeRevenueSplit(PaymentSplitter.Payees[] memory payee) external; /** * @dev Returns the recipient and amount of royalty to be paid (ERC-2981). * * @param salePrice The sale price of the token. * @return recipient_ The address of the royalty recipient. * @return royaltyAmount_ The amount of royalty to be paid. */ function royaltyInfo(uint256, uint256 salePrice) external view returns (address recipient_, uint256 royaltyAmount_); /** * @dev Returns the locking status of an Soulbound Token (ERC-5192). * * @param tokenId The ID of the token to check. * @return status A boolean value. */ function locked(uint256 tokenId) external view returns (bool status); /** * @dev Checks whether the revenue split settings have been frozen. * * @return status A boolean value. */ function isRevenueSplitFrozen() external view returns (bool status); /** * @dev Checks whether the metadata have been frozen. * * @return status A boolean value. */ function isMetadataFrozen() external view returns (bool status); /** * @dev Checks whether minting is currently paused. * * @return status A boolean value. */ function isMintPaused() external view returns (bool status); /** * @dev Checks whether token is burnable. * * @return status A boolean value. */ function isBurnable() external view returns (bool status); /** * @dev Checks whether the tokens are currently in the pre-reveal. * * @return status A boolean value. */ function isPreReveal() external view returns (bool status); /** * @dev Checks whether the public sale has started. * * @return status A boolean value. */ function isPublicSaleStart() external view returns (bool status); /** * @dev Checks whether OpenSea operator filtering is enabled. * * @return status A boolean value. */ function isOperatorFiltering() external view returns (bool status); /** * @dev Returns the address of the CRFTD Wallet contract instance. * * @return The address of wallet. */ // function CRFTD_WALLET() external pure returns (address); /** * @dev Returns the flat fee in wei that is charged per mint. * * @return The flat fee in wei. */ // function FLAT_FEE() external pure returns (uint64); /** * @dev Returns the percentage fee in bps that is charged per mint if price is greater than 0.05 ETH. * * @return The fee percentage in bps. */ // function FEE_PERCENTAGE() external pure returns (uint16); }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import '../IERC721AUpgradeable.sol'; /** * @dev Interface of ERC721AQueryable. */ interface IERC721AQueryableUpgradeable is IERC721AUpgradeable { /** * Invalid query range (`start` >= `stop`). */ error InvalidQueryRange(); /** * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. * * If the `tokenId` is out of bounds: * * - `addr = address(0)` * - `startTimestamp = 0` * - `burned = false` * - `extraData = 0` * * If the `tokenId` is burned: * * - `addr = <Address of owner before token was burned>` * - `startTimestamp = <Timestamp when token was burned>` * - `burned = true` * - `extraData = <Extra data when token was burned>` * * Otherwise: * * - `addr = <Address of owner>` * - `startTimestamp = <Timestamp of start of ownership>` * - `burned = false` * - `extraData = <Extra data at start of ownership>` */ function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory); /** * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. * See {ERC721AQueryable-explicitOwnershipOf} */ function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory); /** * @dev Returns an array of token IDs owned by `owner`, * in the range [`start`, `stop`) * (i.e. `start <= tokenId < stop`). * * This function allows for tokens to be queried if the collection * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. * * Requirements: * * - `start < stop` */ function tokensOfOwnerIn( address owner, uint256 start, uint256 stop ) external view returns (uint256[] memory); /** * @dev Returns an array of token IDs owned by `owner`. * * This function scans the ownership mapping and is O(`totalSupply`) in complexity. * It is meant to be called off-chain. * * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into * multiple smaller scans if the collection is large enough to cause * an out-of-gas error (10K collections should be fine). */ function tokensOfOwner(address owner) external view returns (uint256[] memory); }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // 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()`. * * 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(); } // ============================================================= // TOKEN COUNTING OPERATIONS // ============================================================= /** * @dev Returns the starting token ID. * To change the starting token ID, please override this function. */ function _startTokenId() internal view virtual returns (uint256) { return 0; } /** * @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) { // Counter underflow is impossible as _burnCounter cannot be incremented // more than `_currentIndex - _startTokenId()` times. unchecked { return ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId(); } } /** * @dev Returns the total amount of tokens minted in the contract. */ function _totalMinted() internal view virtual returns (uint256) { // Counter underflow is impossible as `_currentIndex` does not decrement, // and it is initialized to `_startTokenId()`. unchecked { return ERC721AStorage.layout()._currentIndex - _startTokenId(); } } /** * @dev Returns the total number of tokens burned. */ function _totalBurned() internal view virtual returns (uint256) { return ERC721AStorage.layout()._burnCounter; } // ============================================================= // 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(); 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(); 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 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); } } /** * 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 not burned. if (packed & _BITMASK_BURNED == 0) { // If the data at the starting slot does not exist, start the scan. if (packed == 0) { if (tokenId >= ERC721AStorage.layout()._currentIndex) revert OwnerQueryForNonexistentToken(); // 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; return packed; } } // Otherwise, the data exists and is not burned. 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. return packed; } } revert OwnerQueryForNonexistentToken(); } /** * @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(); 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) { return _startTokenId() <= tokenId && tokenId < ERC721AStorage.layout()._currentIndex && // If within bounds, ERC721AStorage.layout()._packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not 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); if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner(); (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(); if (to == address(0)) revert TransferToZeroAddress(); _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; } } } } emit Transfer(from, to, tokenId); _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(); } } /** * @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(); } else { 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(); _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: // - `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) ); uint256 toMasked; uint256 end = startTokenId + quantity; // Use assembly to loop and emit the `Transfer` event for gas savings. // The duplicated `log4` removes an extra check and reduces stack juggling. // The assembly, together with the surrounding Solidity code, have been // delicately arranged to nudge the compiler into producing optimized opcodes. assembly { // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. toMasked := and(to, _BITMASK_ADDRESS) // 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`. startTokenId // `tokenId`. ) // The `iszero(eq(,))` check ensures that large values of `quantity` // that overflows uint256 will make the loop run out of gas. // The compiler will optimize the `iszero` away for performance. for { let tokenId := add(startTokenId, 1) } iszero(eq(tokenId, end)) { tokenId := add(tokenId, 1) } { // Emit the `Transfer` event. Similar to above. log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId) } } if (toMasked == 0) revert MintToZeroAddress(); 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(); if (quantity == 0) revert MintZeroQuantity(); if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit(); _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) ); 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(); } } while (index < end); // Reentrancy protection. if (ERC721AStorage.layout()._currentIndex != end) revert(); } } } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal virtual { _safeMint(to, quantity, ''); } // ============================================================= // 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) if (_msgSenderERC721A() != owner) if (!isApprovedForAll(owner, _msgSenderERC721A())) { revert ApprovalCallerNotOwnerNorApproved(); } 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(); } _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 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(); 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) } } }
// 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 pragma solidity ^0.8.4; /// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol) /// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol) /// @dev Caution! This library won't check that a token has code, responsibility is delegated to the caller. library SafeTransferLib { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The ETH transfer has failed. error ETHTransferFailed(); /// @dev The ERC20 `transferFrom` has failed. error TransferFromFailed(); /// @dev The ERC20 `transfer` has failed. error TransferFailed(); /// @dev The ERC20 `approve` has failed. error ApproveFailed(); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CONSTANTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Suggested gas stipend for contract receiving ETH /// that disallows any storage writes. uint256 internal constant _GAS_STIPEND_NO_STORAGE_WRITES = 2300; /// @dev Suggested gas stipend for contract receiving ETH to perform a few /// storage reads and writes, but low enough to prevent griefing. /// Multiply by a small constant (e.g. 2), if needed. uint256 internal constant _GAS_STIPEND_NO_GRIEF = 100000; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ETH OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Sends `amount` (in wei) ETH to `to`. /// Reverts upon failure. function safeTransferETH(address to, uint256 amount) internal { /// @solidity memory-safe-assembly assembly { // Transfer the ETH and check if it succeeded or not. if iszero(call(gas(), to, amount, 0, 0, 0, 0)) { // Store the function selector of `ETHTransferFailed()`. mstore(0x00, 0xb12d13eb) // Revert with (offset, size). revert(0x1c, 0x04) } } } /// @dev Force sends `amount` (in wei) ETH to `to`, with a `gasStipend`. /// The `gasStipend` can be set to a low enough value to prevent /// storage writes or gas griefing. /// /// If sending via the normal procedure fails, force sends the ETH by /// creating a temporary contract which uses `SELFDESTRUCT` to force send the ETH. /// /// Reverts if the current contract has insufficient balance. function forceSafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal { /// @solidity memory-safe-assembly assembly { // If insufficient balance, revert. if lt(selfbalance(), amount) { // Store the function selector of `ETHTransferFailed()`. mstore(0x00, 0xb12d13eb) // Revert with (offset, size). revert(0x1c, 0x04) } // Transfer the ETH and check if it succeeded or not. if iszero(call(gasStipend, to, amount, 0, 0, 0, 0)) { mstore(0x00, to) // Store the address in scratch space. mstore8(0x0b, 0x73) // Opcode `PUSH20`. mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`. // We can directly use `SELFDESTRUCT` in the contract creation. // Compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758 if iszero(create(amount, 0x0b, 0x16)) { // For better gas estimation. if iszero(gt(gas(), 1000000)) { revert(0, 0) } } } } } /// @dev Force sends `amount` (in wei) ETH to `to`, with a gas stipend /// equal to `_GAS_STIPEND_NO_GRIEF`. This gas stipend is a reasonable default /// for 99% of cases and can be overriden with the three-argument version of this /// function if necessary. /// /// If sending via the normal procedure fails, force sends the ETH by /// creating a temporary contract which uses `SELFDESTRUCT` to force send the ETH. /// /// Reverts if the current contract has insufficient balance. function forceSafeTransferETH(address to, uint256 amount) internal { // Manually inlined because the compiler doesn't inline functions with branches. /// @solidity memory-safe-assembly assembly { // If insufficient balance, revert. if lt(selfbalance(), amount) { // Store the function selector of `ETHTransferFailed()`. mstore(0x00, 0xb12d13eb) // Revert with (offset, size). revert(0x1c, 0x04) } // Transfer the ETH and check if it succeeded or not. if iszero(call(_GAS_STIPEND_NO_GRIEF, to, amount, 0, 0, 0, 0)) { mstore(0x00, to) // Store the address in scratch space. mstore8(0x0b, 0x73) // Opcode `PUSH20`. mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`. // We can directly use `SELFDESTRUCT` in the contract creation. // Compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758 if iszero(create(amount, 0x0b, 0x16)) { // For better gas estimation. if iszero(gt(gas(), 1000000)) { revert(0, 0) } } } } } /// @dev Sends `amount` (in wei) ETH to `to`, with a `gasStipend`. /// The `gasStipend` can be set to a low enough value to prevent /// storage writes or gas griefing. /// /// Simply use `gasleft()` for `gasStipend` if you don't need a gas stipend. /// /// Note: Does NOT revert upon failure. /// Returns whether the transfer of ETH is successful instead. function trySafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal returns (bool success) { /// @solidity memory-safe-assembly assembly { // Transfer the ETH and check if it succeeded or not. success := call(gasStipend, to, amount, 0, 0, 0, 0) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ERC20 OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Sends `amount` of ERC20 `token` from `from` to `to`. /// Reverts upon failure. /// /// The `from` account must have at least `amount` approved for /// the current contract to manage. function safeTransferFrom(address token, address from, address to, uint256 amount) internal { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) // Cache the free memory pointer. mstore(0x60, amount) // Store the `amount` argument. mstore(0x40, to) // Store the `to` argument. mstore(0x2c, shl(96, from)) // Store the `from` argument. // Store the function selector of `transferFrom(address,address,uint256)`. mstore(0x0c, 0x23b872dd000000000000000000000000) if iszero( and( // The arguments of `and` are evaluated from right to left. // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(eq(mload(0x00), 1), iszero(returndatasize())), call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20) ) ) { // Store the function selector of `TransferFromFailed()`. mstore(0x00, 0x7939f424) // Revert with (offset, size). revert(0x1c, 0x04) } mstore(0x60, 0) // Restore the zero slot to zero. mstore(0x40, m) // Restore the free memory pointer. } } /// @dev Sends all of ERC20 `token` from `from` to `to`. /// Reverts upon failure. /// /// The `from` account must have at least `amount` approved for /// the current contract to manage. function safeTransferAllFrom(address token, address from, address to) internal returns (uint256 amount) { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) // Cache the free memory pointer. mstore(0x40, to) // Store the `to` argument. mstore(0x2c, shl(96, from)) // Store the `from` argument. // Store the function selector of `balanceOf(address)`. mstore(0x0c, 0x70a08231000000000000000000000000) if iszero( and( // The arguments of `and` are evaluated from right to left. gt(returndatasize(), 0x1f), // At least 32 bytes returned. staticcall(gas(), token, 0x1c, 0x24, 0x60, 0x20) ) ) { // Store the function selector of `TransferFromFailed()`. mstore(0x00, 0x7939f424) // Revert with (offset, size). revert(0x1c, 0x04) } // Store the function selector of `transferFrom(address,address,uint256)`. mstore(0x00, 0x23b872dd) // The `amount` argument is already written to the memory word at 0x6c. amount := mload(0x60) if iszero( and( // The arguments of `and` are evaluated from right to left. // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(eq(mload(0x00), 1), iszero(returndatasize())), call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20) ) ) { // Store the function selector of `TransferFromFailed()`. mstore(0x00, 0x7939f424) // Revert with (offset, size). revert(0x1c, 0x04) } mstore(0x60, 0) // Restore the zero slot to zero. mstore(0x40, m) // Restore the free memory pointer. } } /// @dev Sends `amount` of ERC20 `token` from the current contract to `to`. /// Reverts upon failure. function safeTransfer(address token, address to, uint256 amount) internal { /// @solidity memory-safe-assembly assembly { mstore(0x14, to) // Store the `to` argument. mstore(0x34, amount) // Store the `amount` argument. // Store the function selector of `transfer(address,uint256)`. mstore(0x00, 0xa9059cbb000000000000000000000000) if iszero( and( // The arguments of `and` are evaluated from right to left. // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(eq(mload(0x00), 1), iszero(returndatasize())), call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20) ) ) { // Store the function selector of `TransferFailed()`. mstore(0x00, 0x90b8ec18) // Revert with (offset, size). revert(0x1c, 0x04) } // Restore the part of the free memory pointer that was overwritten. mstore(0x34, 0) } } /// @dev Sends all of ERC20 `token` from the current contract to `to`. /// Reverts upon failure. function safeTransferAll(address token, address to) internal returns (uint256 amount) { /// @solidity memory-safe-assembly assembly { mstore(0x00, 0x70a08231) // Store the function selector of `balanceOf(address)`. mstore(0x20, address()) // Store the address of the current contract. if iszero( and( // The arguments of `and` are evaluated from right to left. gt(returndatasize(), 0x1f), // At least 32 bytes returned. staticcall(gas(), token, 0x1c, 0x24, 0x34, 0x20) ) ) { // Store the function selector of `TransferFailed()`. mstore(0x00, 0x90b8ec18) // Revert with (offset, size). revert(0x1c, 0x04) } mstore(0x14, to) // Store the `to` argument. // The `amount` argument is already written to the memory word at 0x34. amount := mload(0x34) // Store the function selector of `transfer(address,uint256)`. mstore(0x00, 0xa9059cbb000000000000000000000000) if iszero( and( // The arguments of `and` are evaluated from right to left. // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(eq(mload(0x00), 1), iszero(returndatasize())), call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20) ) ) { // Store the function selector of `TransferFailed()`. mstore(0x00, 0x90b8ec18) // Revert with (offset, size). revert(0x1c, 0x04) } // Restore the part of the free memory pointer that was overwritten. mstore(0x34, 0) } } /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract. /// Reverts upon failure. function safeApprove(address token, address to, uint256 amount) internal { /// @solidity memory-safe-assembly assembly { mstore(0x14, to) // Store the `to` argument. mstore(0x34, amount) // Store the `amount` argument. // Store the function selector of `approve(address,uint256)`. mstore(0x00, 0x095ea7b3000000000000000000000000) if iszero( and( // The arguments of `and` are evaluated from right to left. // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(eq(mload(0x00), 1), iszero(returndatasize())), call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20) ) ) { // Store the function selector of `ApproveFailed()`. mstore(0x00, 0x3e3f8f73) // Revert with (offset, size). revert(0x1c, 0x04) } // Restore the part of the free memory pointer that was overwritten. mstore(0x34, 0) } } /// @dev Returns the amount of ERC20 `token` owned by `account`. /// Returns zero if the `token` does not exist. function balanceOf(address token, address account) internal view returns (uint256 amount) { /// @solidity memory-safe-assembly assembly { mstore(0x14, account) // Store the `account` argument. // Store the function selector of `balanceOf(address)`. mstore(0x00, 0x70a08231000000000000000000000000) amount := mul( mload(0x20), and( // The arguments of `and` are evaluated from right to left. gt(returndatasize(), 0x1f), // At least 32 bytes returned. staticcall(gas(), token, 0x10, 0x24, 0x20, 0x20) ) ) } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; interface IPaymentSplitter { /** * @dev Emitted when an account has successfully withdrawn tokens. * * @param account The address of the account that withdrew the tokens. * @param value The amount of tokens that were withdrawn. */ event Withdrawn(address account, uint256 value); /** * @dev When the share total is not equivalent to `95`. */ error InvalidShare(); /** * @dev When given address is zero. */ error ZeroAddress(); /** * @dev When given share is zero. */ error ZeroShare(); /** * @dev When contract try to reentrant calls to a function. */ error Reentrancy(); struct Payees { // A address of account address account; // A share of the account uint96 share; } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // 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(); // ============================================================= // 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; } 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 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 } } }
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A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.