ERC-721
Overview
Max Total Supply
244 SW
Holders
112
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 SWLoading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
SuperWeirdos
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 500 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; /* =: := -*==. +========== .==*+ #:.-+=. -*---------#. -=-..# :+...:=+: .=+*+---------*++=- -+=:...+- .%*++====++=----. :+=....-==: :++--*+---------+=---+= :==:....=+: --===+++==+++*%. ++===++====+++=:=+: .=+-....-+#=:*+----*=---------=*----=#+#+-....-+=. :+=:=+++====++===+- #--++=*----=--++:=+- .=+-....=**-----**+++++++++*+----+*=:...-+=: :+=:+*=-=----*=++--* .*-=#:-#=-#*##--++--+= +*+=:..:++=----------------=++:...-++*- -+--++--*#*#--*-:#=-+: .*-=*:-#-+###----=*=:+= +=-=+*=:..-++------------++-..:=+%=--+= =+:-*=----*##+-*=:*+-+- .*-=*++--------==-=*-:++. -*#*=====+**%#+:.:*#********#%-.:=*%++*+====*#*- =+:-*+-==--------=**=-*- .==+++=-------*%#*==+=:=+-: =#++-:....:-+*##%*#######*##=:....:-=+#*. .=+:=*+-+#%*-------==++==. .:-%%#*+--*##*==*=:=+: .*=#+++++=:.=#*##++++++***#%+:=++++==#== :+=.=*==*##*--+*#%%=:. -@@@@@#=-*###==*=.=+- *=-*+---=%++*%*+*#+++*%**#*+=*+---=#-== :+=.=*==###*=-#@@@@@= .:=*@@@#+-*###+=*+:-+- +=--*+---+*:::+#**%*##***-::+*---+*--+- -+=:++=+###*-=#@@@*=-. :#@@%+-+###*-++::+#+---++---+*++++#**%**#*+++**---+*---**+-:+*-+###+-+%@@#- .+@@@*-+###*-++:-#=---+*---*=----+#%##=---=#---*+---=#-:+*=+###+-+@@@*: .#@@@*-+###*=#*=#+---#*---#-----=*+-----#---*#---=#-*#++###+-*@@@*: -=-:+@@@@*#%##****##*+#-+%=-#+++++++++++++#--#*=#+*###****###*%@@@@%%%*: % #@#+=----------#--%@@**----*++==#---**%@@--#=---------=+*#%*-###%# == =#=------------++-*@@@@+=---*....++--=%@@@#--#-------------*%: .-%- # +*++++++++**+*%%%-=@@@@*==++#-....:%++=*%@@@+-+%%*++#+++++++++*- :% --*=---------*=-#@@=-+%#=------%-....=%------*%*--%@%--#----------*==- %+----------#--%@#--------+**+-+*==*==**+=-------+@@--+*----------*% =#---------=#*--@@%+==+*#%@@=----#=#-----@@@%*+===*@@=--%+=---------%= =%%###+++%=-.+=--@@@@@@@@@@@@-----#-++----%@@@@@@@@@@@=--# .-+#+++%#%%%- =%##%%---*. #---*%%%%%###**=----++--#-----+**##%%%%%#---+- :*--=%###%: +%###%+-*= #------------===----#---*=---===------------== =+-#%##%%: -=+#*#%%@***: #--+##%%%%%%%##*=--=*----#---*###%%%%%%##*---+ :**#%%%#*#==: .*=-----%%=--*- #---=----------==+*+-----=*++=----------=---+= :+--+%%-----=*. :#+++=--+#=---# --==+*+++++++==%-----------#+=+++++++*+===-: *---=#+--=+++# .%+++=---#----*- *--==-=+--+*---------=#--=+-=+--#. -=----#---=+++# #=------++----# :*-+@=-@=---%##++++###---%*-%*-=+ #----*=------++ +*++++---%++--*: +=-%*-*#---%+#::::#*#--+@-+@--# =+--+*#---++++#- :*-------*%%%%#+ *-=*--*---%**::::**%--+=-+=-+- ##%%#%=-------# ++++++=--%%###%+ -+--------%+#-::-%+#-------=* %%###%%--=++++*+ .*-------#%####%+ +=-------=#*#++#*#=-------# #%####%+-------#. .*------*%%%%%#= *=-=+----=#****#+----*+-#. +%%%%%%+------#. *=#*#%#+%==-. :*#%+-=*+==--=++=--==+*=-*##+- .--=%=%%##*-# +.#-%%*-@: :+#*+++#*=--=----------=--=#*+++*#*- =%-#%#=+.*. .+:#-%%+-%@# =#*++++++++*%#=#+======**+%%*++++++++*%=. .%%%-*%#-#.*: :=-*-%%==*+@+ -*=**********+=+*:+=....-*:#--+*********+-*= *@=#-+%#-#:+- -=+=-@@=++-## :*-------------=*#*.=+=:.::*#*=-------------+* #+-#==@%-*-== =-#--@@-#+--# =%++++++++++++++%=+##:....:#*+=%++++++++++++++#*. #--#+-@%-=+== +-#--%#-%@=-=* =#*#--=+++++++++=-%=+*@%++++#@#++%--++++++++++--=##*. +=-+@*-##--#-+ *=*-----@@#--*: :#*+#+--%+++++++++%-#=+*@%%%%%%@#++#-#*++++++++#+--#++#= :*--%@%-----#-* #+=----=@@@*--* +#+++#+-+#*++++++++%=#=+*@%%%%%%@#++*=+#+++++++***--#+++*#. #--#@@@-----*=* .%*-----*@@@@+-+- :#****##=-++++++++++==*--*%%%%%%%%#--*+-++++++++++==+%*****+ ++-*@@@@+----=** #%+----%@@@@#=-# .... -+=+*@==*@@===%%#%%%%%%%%%%%%#%@*==%@#==%#++=# ..:.. .#-=#@@@@#----*%# %@@@%%@@@@@* *==+ +---#%..=@@..:%%%%%%%%%%%%%%%%%%+..#@#..*%---*. #==* %@@@@@%@@@@# %@@@@@@@@@@: *-#. #---@%..+@%..-@%%%%%%%%%%%%%%%%%*..*@#..*@+--+- -*=* =@@@@@@@@@@% @%@@@@@@@@= .*#: .*--+%#..+@#..=@%%%%%%%%%%%%%%%%%#..+@#..+%#---+ =** *@@@@@@@@#% % .::. . -+--%%#::*@#:.+%%%%%%%%%%%%%%%%%%%.:+@%::+%@---* . ..:.. % . -=+++++++======+%%%%%%%%%%%%%%%%%%%@*=======+++++*==. . :*--+*#########*--+@%%%%%%%%%%%%%%%%%%--+#########**--*= .*--#*++++++++++%--+@%%%%%%%%%%%%%%%%%%--#*+++++++++*#--++*/ import "erc721a/contracts/ERC721A.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; /// @author The Weirdos Team /// @title SuperWeirdos NFT Contract contract SuperWeirdos is ERC721A, Ownable, ReentrancyGuard { uint256 public constant MAX_SUPPLY = 500; uint256 public constant MINT_PRICE_CLONES = 8; mapping(address => bool) public admins; bool public burningIsActive = false; bool public permanentBurnAddress = false; address public burnAddress = 0x000000000000000000000000000000000000dEaD; address public cloningAddress = 0xda216128024e122354BA20B648b8CC0a3E2Be51c; string public baseURI; string public contractURI; constructor() ERC721A("SuperWeirdos", "SW") {} /// @notice Caller is not a smart contract modifier callerIsUser() { require(tx.origin == _msgSender(), "Caller is contract"); _; } /// @notice Sets the base URI for all tokens function setbaseURI(string memory _baseURI) external onlyOwner { baseURI = _baseURI; } /// @notice Sets the contract URI for contract metadata function setContractURI(string memory _contractURI) external onlyOwner { contractURI = _contractURI; } /// @notice Adds an admin address permitted to airdrop function addAdmin(address _admin) external onlyOwner { admins[_admin] = true; } /// @notice Sets the burn address for burning tokens /// @dev _permanentBurnAddress will prevent the burn address from being changed function setBurnAddress(address _burnAddress, bool _permanentBurnAddress) external onlyOwner { permanentBurnAddress = _permanentBurnAddress; burnAddress = _burnAddress; } /// @notice Activates burning /// @dev burningIsActive state is ignored by airdrops function setBurningIsActive(bool _burningIsActive) external onlyOwner { burningIsActive = _burningIsActive; } /// @notice Contract URI for contract metadata function getContractURI() public view returns (string memory) { return contractURI; } /// @notice URI for token metadata function tokenURI(uint256 _tokenId) public view override returns (string memory) { require(_exists(_tokenId), "Token does not exist"); return string(abi.encodePacked(baseURI, Strings.toString(_tokenId))); } /// @notice Mints a token by burning a number of tokens defined by MINT_PRICE_CLONES function burnMint(uint256[MINT_PRICE_CLONES] memory _tokenIds) public nonReentrant { require(burningIsActive, "Burning is not active"); require(totalSupply() < MAX_SUPPLY, "Burn would exceed max supply"); for (uint256 i = 0; i < MINT_PRICE_CLONES; i++) { IERC721(cloningAddress).safeTransferFrom( msg.sender, burnAddress, _tokenIds[i] ); } _safeMint(_msgSender(), 1); } /// @notice Mints a token at no cost to the caller (for airdrops) function airdropMint(address _recepient) public { require(totalSupply() < MAX_SUPPLY, "Airdrop would exceed max supply"); require(admins[msg.sender], "Caller is not an admin"); _safeMint(_recepient, 1); } /// @notice Convinience function for airdropping multiple tokens function massAirdropMint(address[] memory _recepient) public { require( totalSupply() + _recepient.length < MAX_SUPPLY + 1, "Airdrop would exceed max supply" ); require(admins[msg.sender], "Caller is not an admin"); for (uint256 i = 0; i < _recepient.length; i++) { _safeMint(_recepient[i], 1); } } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.2 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721A.sol'; /** * @dev Interface of ERC721 token receiver. */ interface ERC721A__IERC721Receiver { 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 ERC721A is IERC721A { // Reference type for token approval. struct TokenApprovalRef { address value; } // ============================================================= // 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; // ============================================================= // STORAGE // ============================================================= // The next token ID to be minted. uint256 private _currentIndex; // The number of tokens burned. uint256 private _burnCounter; // Token name string private _name; // Token symbol string private _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) private _packedOwnerships; // Mapping owner address to address data. // // Bits Layout: // - [0..63] `balance` // - [64..127] `numberMinted` // - [128..191] `numberBurned` // - [192..255] `aux` mapping(address => uint256) private _packedAddressData; // Mapping from token ID to approved address. mapping(uint256 => TokenApprovalRef) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // ============================================================= // CONSTRUCTOR // ============================================================= constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; _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 _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 _currentIndex - _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 _currentIndex - _startTokenId(); } } /** * @dev Returns the total number of tokens burned. */ function _totalBurned() internal view virtual returns (uint256) { return _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 _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return (_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 (_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(_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 = _packedAddressData[owner]; uint256 auxCasted; // Cast `aux` with assembly to avoid redundant masking. assembly { auxCasted := aux } packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX); _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 _name; } /** * @dev Returns the token collection symbol. */ function symbol() public view virtual override returns (string memory) { return _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(_packedOwnerships[index]); } /** * @dev Initializes the ownership slot minted at `index` for efficiency purposes. */ function _initializeOwnershipAt(uint256 index) internal virtual { if (_packedOwnerships[index] == 0) { _packedOwnerships[index] = _packedOwnershipOf(index); } } /** * Returns the packed ownership data of `tokenId`. */ function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) { uint256 curr = tokenId; unchecked { if (_startTokenId() <= curr) if (curr < _currentIndex) { uint256 packed = _packedOwnerships[curr]; // If not burned. if (packed & _BITMASK_BURNED == 0) { // 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, `curr` will not underflow. // // We can directly compare the packed value. // If the address is zero, packed will be zero. while (packed == 0) { packed = _packedOwnerships[--curr]; } 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. * 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) public virtual override { address owner = ownerOf(tokenId); if (_msgSenderERC721A() != owner) if (!isApprovedForAll(owner, _msgSenderERC721A())) { revert ApprovalCallerNotOwnerNorApproved(); } _tokenApprovals[tokenId].value = to; emit Approval(owner, to, tokenId); } /** * @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 _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 { if (operator == _msgSenderERC721A()) revert ApproveToCaller(); _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 _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 < _currentIndex && // If within bounds, _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) { TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId]; // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId]`. 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 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. --_packedAddressData[from]; // Updates: `balance -= 1`. ++_packedAddressData[to]; // Updates: `balance += 1`. // Updates: // - `address` to the next owner. // - `startTimestamp` to the timestamp of transfering. // - `burned` to `false`. // - `nextInitialized` to `true`. _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 (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _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 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 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__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns ( bytes4 retval ) { return retval == ERC721A__IERC721Receiver(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 = _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`. _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`. _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. 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`. ) 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(); _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 = _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`. _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`. _packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to); _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 = _currentIndex; uint256 index = end - quantity; do { if (!_checkContractOnERC721Received(address(0), to, index++, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } while (index < end); // Reentrancy protection. if (_currentIndex != end) revert(); } } } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal virtual { _safeMint(to, quantity, ''); } // ============================================================= // 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;`. _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`. _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 (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _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 { _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 = _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); _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 0x80 bytes to keep the free memory pointer 32-byte word aliged. // We will need 1 32-byte word to store the length, // and 3 32-byte words to store a maximum of 78 digits. Total: 0x20 + 3 * 0x20 = 0x80. str := add(mload(0x40), 0x80) // Update the free memory pointer to allocate. mstore(0x40, str) // 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 // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @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. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @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 (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * 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, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.2 // Creator: Chiru Labs pragma solidity ^0.8.4; /** * @dev Interface of ERC721A. */ interface IERC721A { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * The caller cannot approve to their own address. */ error ApproveToCaller(); /** * 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; /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @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; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the * zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} * for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll(address owner, address operator) external view returns (bool); // ============================================================= // 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 // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: 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; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 500 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_PRICE_CLONES","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_admin","type":"address"}],"name":"addAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"admins","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_recepient","type":"address"}],"name":"airdropMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"burnAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[8]","name":"_tokenIds","type":"uint256[8]"}],"name":"burnMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"burningIsActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cloningAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getContractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_recepient","type":"address[]"}],"name":"massAirdropMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"permanentBurnAddress","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_burnAddress","type":"address"},{"internalType":"bool","name":"_permanentBurnAddress","type":"bool"}],"name":"setBurnAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_burningIsActive","type":"bool"}],"name":"setBurningIsActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_contractURI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"name":"setbaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
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
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.