Feature Tip: Add private address tag to any address under My Name Tag !
ERC-721
Overview
Max Total Supply
2,492 FS
Holders
646
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
20 FSLoading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
MooarNFT
Compiler Version
v0.8.9+commit.e5eed63a
Optimization Enabled:
Yes with 500 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.9; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./IERC173.sol"; contract MooarNFT is ERC721Enumerable, Ownable { string private _baseTokenURI; address private _mooar; string private _tokenSuffix; uint256 public maxSupply; mapping(address => bool) private _priorityMinterRecords; constructor( string memory name, string memory symbol, string memory baseURI, string memory tokenSuffix, uint256 maxSupply_) ERC721(name, symbol) { _baseTokenURI = baseURI; _mooar = _msgSender(); _tokenSuffix = tokenSuffix; maxSupply = maxSupply_; } modifier onlyMooar() { require(_msgSender() == _mooar, "Only for mooar contract"); _; } function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC173).interfaceId || super.supportsInterface(interfaceId); } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { string memory uri = super.tokenURI(tokenId); return bytes(_tokenSuffix).length > 0 ? string(abi.encodePacked(uri, _tokenSuffix)) : uri; } function _baseURI() internal view virtual override returns(string memory) { return _baseTokenURI; } function mooarMint(address to, uint256 tokenId) onlyMooar external { _safeMint(to, tokenId); } function burn(uint256 tokenId) external virtual { require( _isApprovedOrOwner(_msgSender(), tokenId), "Burn caller is not owner nor approved" ); _burn(tokenId); } }
// 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 v4.8.0) (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 = _ownerOf(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 or 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 or 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 or 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 the owner of the `tokenId`. Does NOT revert if token doesn't exist */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @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 _ownerOf(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, 1); // Check that tokenId was not minted by `_beforeTokenTransfer` hook require(!_exists(tokenId), "ERC721: token already minted"); unchecked { // Will not overflow unless all 2**256 token ids are minted to the same owner. // Given that tokens are minted one by one, it is impossible in practice that // this ever happens. Might change if we allow batch minting. // The ERC fails to describe this case. _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId, 1); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId, 1); // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook owner = ERC721.ownerOf(tokenId); // Clear approvals delete _tokenApprovals[tokenId]; unchecked { // Cannot overflow, as that would require more tokens to be burned/transferred // out than the owner initially received through minting and transferring in. _balances[owner] -= 1; } delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId, 1); } /** * @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, 1); // Check that tokenId was not transferred by `_beforeTokenTransfer` hook require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); // Clear approvals from the previous owner delete _tokenApprovals[tokenId]; unchecked { // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current // transfer. // `_balances[to]` could overflow in the conditions described in `_mint`. That would require // all 2**256 token ids to be minted, which in practice is impossible. _balances[from] -= 1; _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } /** * @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. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. * - When `from` is zero, the tokens will be minted for `to`. * - When `to` is zero, ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256, /* firstTokenId */ uint256 batchSize ) internal virtual { if (batchSize > 1) { if (from != address(0)) { _balances[from] -= batchSize; } if (to != address(0)) { _balances[to] += batchSize; } } } /** * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. * - When `from` is zero, the tokens were minted for `to`. * - When `to` is zero, ``from``'s tokens were burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev See {ERC721-_beforeTokenTransfer}. */ function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual override { super._beforeTokenTransfer(from, to, firstTokenId, batchSize); if (batchSize > 1) { // Will only trigger during construction. Batch transferring (minting) is not available afterwards. revert("ERC721Enumerable: consecutive transfers not supported"); } uint256 tokenId = firstTokenId; if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// 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 (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// 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 (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts 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 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 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _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) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { 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] = _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: UNLICENSED pragma solidity ^0.8.9; /// @title ERC-173 Contract Ownership Standard /// Note: the ERC-165 identifier for this interface is 0x7f5828d0 interface IERC173 /* is ERC165 */ { /// @dev This emits when ownership of a contract changes. event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /// @notice Get the address of the owner /// @return The address of the owner. function owner() view external returns(address); /// @notice Set the address of the new owner of the contract /// @dev Set _newOwner to address(0) to renounce any ownership. /// @param _newOwner The address of the new owner of the contract function transferOwnership(address _newOwner) external; }
{ "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":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"string","name":"baseURI","type":"string"},{"internalType":"string","name":"tokenSuffix","type":"string"},{"internalType":"uint256","name":"maxSupply_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"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":"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":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"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":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"mooarMint","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":"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":"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":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"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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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000009c4000000000000000000000000000000000000000000000000000000000000000746534c616e647300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000246530000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000036697066733a2f2f516d52416b68446931526d717277617641556d7a5638394b7572676a7543634b5375414c7054624d3847757a64572f000000000000000000000000000000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : name (string): FSLands
Arg [1] : symbol (string): FS
Arg [2] : baseURI (string): ipfs://QmRAkhDi1RmqrwavAUmzV89KurgjuCcKSuALpTbM8GuzdW/
Arg [3] : tokenSuffix (string):
Arg [4] : maxSupply_ (uint256): 2500
-----Encoded View---------------
13 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000180
Arg [4] : 00000000000000000000000000000000000000000000000000000000000009c4
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [6] : 46534c616e647300000000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [8] : 4653000000000000000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [10] : 697066733a2f2f516d52416b68446931526d717277617641556d7a5638394b75
Arg [11] : 72676a7543634b5375414c7054624d3847757a64572f00000000000000000000
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000000
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.