IERC721A

Git Source

Interface of ERC721A.

Functions

totalSupply

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);

supportsInterface

Returns true if this contract implements the interface defined by interfaceId. See the corresponding EIP section 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);

balanceOf

Returns the number of tokens in owner’s account.

function balanceOf(address owner) external view returns (uint256 balance);

ownerOf

*Returns the owner of the tokenId token. Requirements:

• tokenId must exist.*

function ownerOf(uint256 tokenId) external view returns (address owner);

safeTransferFrom

*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 event.*

function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external payable;

safeTransferFrom

Equivalent to safeTransferFrom(from, to, tokenId, '').

function safeTransferFrom(address from, address to, uint256 tokenId) external payable;

transferFrom

*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 or . Emits a event.*

function transferFrom(address from, address to, uint256 tokenId) external payable;

approve

*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;

setApprovalForAll

*Approve or remove operator as an operator for the caller. Operators can call transferFrom or for any token owned by the caller. Requirements:

• The operator cannot be the caller. Emits an event.*

function setApprovalForAll(address operator, bool _approved) external;

getApproved

*Returns the account approved for tokenId token. Requirements:

• tokenId must exist.*

function getApproved(uint256 tokenId) external view returns (address operator);

isApprovedForAll

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);

name

Returns the token collection name.

function name() external view returns (string memory);

symbol

Returns the token collection symbol.

function symbol() external view returns (string memory);

tokenURI

Returns the Uniform Resource Identifier (URI) for tokenId token.

function tokenURI(uint256 tokenId) external view returns (string memory);

Events

Transfer

Emitted when tokenId token is transferred from from to to.

event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

Approval

Emitted when owner enables approved to manage the tokenId token.

event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

ApprovalForAll

Emitted when owner enables or disables (approved) operator to manage all of its assets.

event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

ConsecutiveTransfer

Emitted when tokens in fromTokenId to toTokenId (inclusive) is transferred from from to to, as defined in the ERC2309 standard. See {\_mintERC2309} for more details.

event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);

Errors

ApprovalCallerNotOwnerNorApproved

The caller must own the token or be an approved operator.

error ApprovalCallerNotOwnerNorApproved();

ApprovalQueryForNonexistentToken

The token does not exist.

error ApprovalQueryForNonexistentToken();

BalanceQueryForZeroAddress

Cannot query the balance for the zero address.

error BalanceQueryForZeroAddress();

MintToZeroAddress

Cannot mint to the zero address.

error MintToZeroAddress();

MintZeroQuantity

The quantity of tokens minted must be more than zero.

error MintZeroQuantity();

OwnerQueryForNonexistentToken

The token does not exist.

error OwnerQueryForNonexistentToken();

TransferCallerNotOwnerNorApproved

The caller must own the token or be an approved operator.

error TransferCallerNotOwnerNorApproved();

TransferFromIncorrectOwner

The token must be owned by from.

error TransferFromIncorrectOwner();

TransferToNonERC721ReceiverImplementer

Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.

error TransferToNonERC721ReceiverImplementer();

TransferToZeroAddress

Cannot transfer to the zero address.

error TransferToZeroAddress();

URIQueryForNonexistentToken

The token does not exist.

error URIQueryForNonexistentToken();

MintERC2309QuantityExceedsLimit

The quantity minted with ERC2309 exceeds the safety limit.

error MintERC2309QuantityExceedsLimit();

OwnershipNotInitializedForExtraData

The extraData cannot be set on an unintialized ownership slot.

error OwnershipNotInitializedForExtraData();

TokenIdsNotStrictlyAscending

The tokenIds must be strictly ascending.

error TokenIdsNotStrictlyAscending();

SequentialUpToTooSmall

_sequentialUpTo() must be greater than _startTokenId().

error SequentialUpToTooSmall();

SequentialMintExceedsLimit

The tokenId of a sequential mint exceeds _sequentialUpTo().

error SequentialMintExceedsLimit();

SpotMintTokenIdTooSmall

Spot minting requires a tokenId greater than _sequentialUpTo().

error SpotMintTokenIdTooSmall();

TokenAlreadyExists

Cannot mint over a token that already exists.

error TokenAlreadyExists();

NotCompatibleWithSpotMints

The feature is not compatible with spot mints.

error NotCompatibleWithSpotMints();

Structs

TokenOwnership

struct TokenOwnership {
    address addr;
    uint64 startTimestamp;
    bool burned;
    uint24 extraData;
}