{ "contractName": "IERC721", "abi": [ { "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": "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": "bytes4", "name": "interfaceId", "type": "bytes4" } ], "name": "supportsInterface", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "balance", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "ownerOf", "outputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "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": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "approve", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "internalType": "address", "name": "operator", "type": "address" } ], "stateMutability": "view", "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": "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": "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" } ], "metadata": "{\"compiler\":{\"version\":\"0.7.6+commit.7338295f\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"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\":\"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\":\"balance\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"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\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"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\":[{\"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\"}],\"devdoc\":{\"details\":\"Required interface of an ERC721 compliant contract.\",\"events\":{\"Approval(address,address,uint256)\":{\"details\":\"Emitted when `owner` enables `approved` to manage the `tokenId` token.\"},\"ApprovalForAll(address,address,bool)\":{\"details\":\"Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\"},\"Transfer(address,address,uint256)\":{\"details\":\"Emitted when `tokenId` token is transferred from `from` to `to`.\"}},\"kind\":\"dev\",\"methods\":{\"approve(address,uint256)\":{\"details\":\"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.\"},\"balanceOf(address)\":{\"details\":\"Returns the number of tokens in ``owner``'s account.\"},\"getApproved(uint256)\":{\"details\":\"Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist.\"},\"isApprovedForAll(address,address)\":{\"details\":\"Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll}\"},\"ownerOf(uint256)\":{\"details\":\"Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist.\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"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.\"},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"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.\"},\"setApprovalForAll(address,bool)\":{\"details\":\"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.\"},\"supportsInterface(bytes4)\":{\"details\":\"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.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"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.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":\"IERC721\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":1000000},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/introspection/IERC165.sol\":{\"keccak256\":\"0xf70bc25d981e4ec9673a995ad2995d5d493ea188d3d8f388bba9c227ce09fb82\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://bd970f51e3a77790c2f02b5b1759827c3b897c3d98c407b3631e8af32e3dc93c\",\"dweb:/ipfs/QmPF85Amgbqjk3SNZKsPCsqCw8JfwYEPMnnhvMJUyX58je\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0x5a9f5c29bd7cf0b345e14d97d5f685f68c07e1e5bfdd47e5bcec045e81b0b6ac\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://321cbaa1412fc8d013d8ad3fb5f98c0db7401ddacfb09b70828ea2cebe37397e\",\"dweb:/ipfs/Qmd3Hoc71w6rmxAR6A5VKW9at677VP1L5KDcJnyvu4ksu3\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "", "deployedSourceMap": "", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nimport \"../../introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n}\n", "sourcePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "ast": { "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "exportedSymbols": { "IERC165": [ 4393 ], "IERC721": [ 6501 ] }, "id": 6502, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 6387, "literals": [ "solidity", ">=", "0.6", ".2", "<", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "33:31:30" }, { "absolutePath": "@openzeppelin/contracts/introspection/IERC165.sol", "file": "../../introspection/IERC165.sol", "id": 6388, "nodeType": "ImportDirective", "scope": 6502, "sourceUnit": 4394, "src": "66:41:30", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 6390, "name": "IERC165", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4393, "src": "198:7:30", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC165_$4393", "typeString": "contract IERC165" } }, "id": 6391, "nodeType": "InheritanceSpecifier", "src": "198:7:30" } ], "contractDependencies": [ 4393 ], "contractKind": "interface", "documentation": { "id": 6389, "nodeType": "StructuredDocumentation", "src": "109:67:30", "text": " @dev Required interface of an ERC721 compliant contract." }, "fullyImplemented": false, "id": 6501, "linearizedBaseContracts": [ 6501, 4393 ], "name": "IERC721", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": { "id": 6392, "nodeType": "StructuredDocumentation", "src": "212:88:30", "text": " @dev Emitted when `tokenId` token is transferred from `from` to `to`." }, "id": 6400, "name": "Transfer", "nodeType": "EventDefinition", "parameters": { "id": 6399, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6394, "indexed": true, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 6400, "src": "320:20:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6393, "name": "address", "nodeType": "ElementaryTypeName", "src": "320:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6396, "indexed": true, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 6400, "src": "342:18:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6395, "name": "address", "nodeType": "ElementaryTypeName", "src": "342:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6398, "indexed": true, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6400, "src": "362:23:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6397, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "362:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "319:67:30" }, "src": "305:82:30" }, { "anonymous": false, "documentation": { "id": 6401, "nodeType": "StructuredDocumentation", "src": "393:94:30", "text": " @dev Emitted when `owner` enables `approved` to manage the `tokenId` token." }, "id": 6409, "name": "Approval", "nodeType": "EventDefinition", "parameters": { "id": 6408, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6403, "indexed": true, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 6409, "src": "507:21:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6402, "name": "address", "nodeType": "ElementaryTypeName", "src": "507:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6405, "indexed": true, "mutability": "mutable", "name": "approved", "nodeType": "VariableDeclaration", "scope": 6409, "src": "530:24:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6404, "name": "address", "nodeType": "ElementaryTypeName", "src": "530:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6407, "indexed": true, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6409, "src": "556:23:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6406, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "556:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "506:74:30" }, "src": "492:89:30" }, { "anonymous": false, "documentation": { "id": 6410, "nodeType": "StructuredDocumentation", "src": "587:117:30", "text": " @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets." }, "id": 6418, "name": "ApprovalForAll", "nodeType": "EventDefinition", "parameters": { "id": 6417, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6412, "indexed": true, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 6418, "src": "730:21:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6411, "name": "address", "nodeType": "ElementaryTypeName", "src": "730:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6414, "indexed": true, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "scope": 6418, "src": "753:24:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6413, "name": "address", "nodeType": "ElementaryTypeName", "src": "753:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6416, "indexed": false, "mutability": "mutable", "name": "approved", "nodeType": "VariableDeclaration", "scope": 6418, "src": "779:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6415, "name": "bool", "nodeType": "ElementaryTypeName", "src": "779:4:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "729:64:30" }, "src": "709:85:30" }, { "documentation": { "id": 6419, "nodeType": "StructuredDocumentation", "src": "800:76:30", "text": " @dev Returns the number of tokens in ``owner``'s account." }, "functionSelector": "70a08231", "id": 6426, "implemented": false, "kind": "function", "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 6422, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6421, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 6426, "src": "900:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6420, "name": "address", "nodeType": "ElementaryTypeName", "src": "900:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "899:15:30" }, "returnParameters": { "id": 6425, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6424, "mutability": "mutable", "name": "balance", "nodeType": "VariableDeclaration", "scope": 6426, "src": "938:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6423, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "938:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "937:17:30" }, "scope": 6501, "src": "881:74:30", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6427, "nodeType": "StructuredDocumentation", "src": "961:131:30", "text": " @dev Returns the owner of the `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "6352211e", "id": 6434, "implemented": false, "kind": "function", "modifiers": [], "name": "ownerOf", "nodeType": "FunctionDefinition", "parameters": { "id": 6430, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6429, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6434, "src": "1114:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6428, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1114:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1113:17:30" }, "returnParameters": { "id": 6433, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6432, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 6434, "src": "1154:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6431, "name": "address", "nodeType": "ElementaryTypeName", "src": "1154:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "1153:15:30" }, "scope": 6501, "src": "1097:72:30", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6435, "nodeType": "StructuredDocumentation", "src": "1175:690:30", "text": " @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n are aware of the ERC721 protocol to prevent tokens from being forever locked.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must exist and be owned by `from`.\n - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n Emits a {Transfer} event." }, "functionSelector": "42842e0e", "id": 6444, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 6442, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6437, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 6444, "src": "1896:12:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6436, "name": "address", "nodeType": "ElementaryTypeName", "src": "1896:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6439, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 6444, "src": "1910:10:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6438, "name": "address", "nodeType": "ElementaryTypeName", "src": "1910:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6441, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6444, "src": "1922:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6440, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1922:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1895:43:30" }, "returnParameters": { "id": 6443, "nodeType": "ParameterList", "parameters": [], "src": "1947:0:30" }, "scope": 6501, "src": "1870:78:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6445, "nodeType": "StructuredDocumentation", "src": "1954:504:30", "text": " @dev Transfers `tokenId` token from `from` to `to`.\n WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must be owned by `from`.\n - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n Emits a {Transfer} event." }, "functionSelector": "23b872dd", "id": 6454, "implemented": false, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 6452, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6447, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 6454, "src": "2485:12:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6446, "name": "address", "nodeType": "ElementaryTypeName", "src": "2485:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6449, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 6454, "src": "2499:10:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6448, "name": "address", "nodeType": "ElementaryTypeName", "src": "2499:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6451, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6454, "src": "2511:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6450, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2511:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2484:43:30" }, "returnParameters": { "id": 6453, "nodeType": "ParameterList", "parameters": [], "src": "2536:0:30" }, "scope": 6501, "src": "2463:74:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6455, "nodeType": "StructuredDocumentation", "src": "2543:452:30", "text": " @dev Gives permission to `to` to transfer `tokenId` token to another account.\n The approval is cleared when the token is transferred.\n Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n Requirements:\n - The caller must own the token or be an approved operator.\n - `tokenId` must exist.\n Emits an {Approval} event." }, "functionSelector": "095ea7b3", "id": 6462, "implemented": false, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 6460, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6457, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 6462, "src": "3017:10:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6456, "name": "address", "nodeType": "ElementaryTypeName", "src": "3017:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6459, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6462, "src": "3029:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6458, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3029:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3016:29:30" }, "returnParameters": { "id": 6461, "nodeType": "ParameterList", "parameters": [], "src": "3054:0:30" }, "scope": 6501, "src": "3000:55:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6463, "nodeType": "StructuredDocumentation", "src": "3061:139:30", "text": " @dev Returns the account approved for `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "081812fc", "id": 6470, "implemented": false, "kind": "function", "modifiers": [], "name": "getApproved", "nodeType": "FunctionDefinition", "parameters": { "id": 6466, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6465, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6470, "src": "3226:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6464, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3226:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3225:17:30" }, "returnParameters": { "id": 6469, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6468, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "scope": 6470, "src": "3266:16:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6467, "name": "address", "nodeType": "ElementaryTypeName", "src": "3266:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3265:18:30" }, "scope": 6501, "src": "3205:79:30", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6471, "nodeType": "StructuredDocumentation", "src": "3290:309:30", "text": " @dev Approve or remove `operator` as an operator for the caller.\n Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n Requirements:\n - The `operator` cannot be the caller.\n Emits an {ApprovalForAll} event." }, "functionSelector": "a22cb465", "id": 6478, "implemented": false, "kind": "function", "modifiers": [], "name": "setApprovalForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 6476, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6473, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "scope": 6478, "src": "3631:16:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6472, "name": "address", "nodeType": "ElementaryTypeName", "src": "3631:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6475, "mutability": "mutable", "name": "_approved", "nodeType": "VariableDeclaration", "scope": 6478, "src": "3649:14:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6474, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3649:4:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "3630:34:30" }, "returnParameters": { "id": 6477, "nodeType": "ParameterList", "parameters": [], "src": "3673:0:30" }, "scope": 6501, "src": "3604:70:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6479, "nodeType": "StructuredDocumentation", "src": "3680:138:30", "text": " @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n See {setApprovalForAll}" }, "functionSelector": "e985e9c5", "id": 6488, "implemented": false, "kind": "function", "modifiers": [], "name": "isApprovedForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 6484, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6481, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 6488, "src": "3849:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6480, "name": "address", "nodeType": "ElementaryTypeName", "src": "3849:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6483, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "scope": 6488, "src": "3864:16:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6482, "name": "address", "nodeType": "ElementaryTypeName", "src": "3864:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3848:33:30" }, "returnParameters": { "id": 6487, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6486, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 6488, "src": "3905:4:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6485, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3905:4:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "3904:6:30" }, "scope": 6501, "src": "3823:88:30", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 6489, "nodeType": "StructuredDocumentation", "src": "3917:566:30", "text": " @dev Safely transfers `tokenId` token from `from` to `to`.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must exist and be owned by `from`.\n - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n Emits a {Transfer} event." }, "functionSelector": "b88d4fde", "id": 6500, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 6498, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6491, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 6500, "src": "4514:12:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6490, "name": "address", "nodeType": "ElementaryTypeName", "src": "4514:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6493, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 6500, "src": "4528:10:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6492, "name": "address", "nodeType": "ElementaryTypeName", "src": "4528:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6495, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 6500, "src": "4540:15:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6494, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4540:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 6497, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "scope": 6500, "src": "4557:19:30", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 6496, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4557:5:30", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "4513:64:30" }, "returnParameters": { "id": 6499, "nodeType": "ParameterList", "parameters": [], "src": "4586:0:30" }, "scope": 6501, "src": "4488:99:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 6502, "src": "177:4412:30" } ], "src": "33:4557:30" }, "legacyAST": { "attributes": { "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "exportedSymbols": { "IERC165": [ 4393 ], "IERC721": [ 6501 ] }, "license": "MIT" }, "children": [ { "attributes": { "literals": [ "solidity", ">=", "0.6", ".2", "<", "0.8", ".0" ] }, "id": 6387, "name": "PragmaDirective", "src": "33:31:30" }, { "attributes": { "SourceUnit": 4394, "absolutePath": "@openzeppelin/contracts/introspection/IERC165.sol", "file": "../../introspection/IERC165.sol", "scope": 6502, "symbolAliases": [ null ], "unitAlias": "" }, "id": 6388, "name": "ImportDirective", "src": "66:41:30" }, { "attributes": { "abstract": false, "contractDependencies": [ 4393 ], "contractKind": "interface", "fullyImplemented": false, "linearizedBaseContracts": [ 6501, 4393 ], "name": "IERC721", "scope": 6502 }, "children": [ { "attributes": { "text": " @dev Required interface of an ERC721 compliant contract." }, "id": 6389, "name": "StructuredDocumentation", "src": "109:67:30" }, { "attributes": {}, "children": [ { "attributes": { "name": "IERC165", "referencedDeclaration": 4393, "type": "contract IERC165" }, "id": 6390, "name": "UserDefinedTypeName", "src": "198:7:30" } ], "id": 6391, "name": "InheritanceSpecifier", "src": "198:7:30" }, { "attributes": { "anonymous": false, "name": "Transfer" }, "children": [ { "attributes": { "text": " @dev Emitted when `tokenId` token is transferred from `from` to `to`." }, "id": 6392, "name": "StructuredDocumentation", "src": "212:88:30" }, { "children": [ { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "from", "scope": 6400, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6393, "name": "ElementaryTypeName", "src": "320:7:30" } ], "id": 6394, "name": "VariableDeclaration", "src": "320:20:30" }, { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "to", "scope": 6400, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6395, "name": "ElementaryTypeName", "src": "342:7:30" } ], "id": 6396, "name": "VariableDeclaration", "src": "342:18:30" }, { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "tokenId", "scope": 6400, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6397, "name": "ElementaryTypeName", "src": "362:7:30" } ], "id": 6398, "name": "VariableDeclaration", "src": "362:23:30" } ], "id": 6399, "name": "ParameterList", "src": "319:67:30" } ], "id": 6400, "name": "EventDefinition", "src": "305:82:30" }, { "attributes": { "anonymous": false, "name": "Approval" }, "children": [ { "attributes": { "text": " @dev Emitted when `owner` enables `approved` to manage the `tokenId` token." }, "id": 6401, "name": "StructuredDocumentation", "src": "393:94:30" }, { "children": [ { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "owner", "scope": 6409, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6402, "name": "ElementaryTypeName", "src": "507:7:30" } ], "id": 6403, "name": "VariableDeclaration", "src": "507:21:30" }, { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "approved", "scope": 6409, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6404, "name": "ElementaryTypeName", "src": "530:7:30" } ], "id": 6405, "name": "VariableDeclaration", "src": "530:24:30" }, { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "tokenId", "scope": 6409, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6406, "name": "ElementaryTypeName", "src": "556:7:30" } ], "id": 6407, "name": "VariableDeclaration", "src": "556:23:30" } ], "id": 6408, "name": "ParameterList", "src": "506:74:30" } ], "id": 6409, "name": "EventDefinition", "src": "492:89:30" }, { "attributes": { "anonymous": false, "name": "ApprovalForAll" }, "children": [ { "attributes": { "text": " @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets." }, "id": 6410, "name": "StructuredDocumentation", "src": "587:117:30" }, { "children": [ { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "owner", "scope": 6418, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6411, "name": "ElementaryTypeName", "src": "730:7:30" } ], "id": 6412, "name": "VariableDeclaration", "src": "730:21:30" }, { "attributes": { "constant": false, "indexed": true, "mutability": "mutable", "name": "operator", "scope": 6418, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6413, "name": "ElementaryTypeName", "src": "753:7:30" } ], "id": 6414, "name": "VariableDeclaration", "src": "753:24:30" }, { "attributes": { "constant": false, "indexed": false, "mutability": "mutable", "name": "approved", "scope": 6418, "stateVariable": false, "storageLocation": "default", "type": "bool", "visibility": "internal" }, "children": [ { "attributes": { "name": "bool", "type": "bool" }, "id": 6415, "name": "ElementaryTypeName", "src": "779:4:30" } ], "id": 6416, "name": "VariableDeclaration", "src": "779:13:30" } ], "id": 6417, "name": "ParameterList", "src": "729:64:30" } ], "id": 6418, "name": "EventDefinition", "src": "709:85:30" }, { "attributes": { "functionSelector": "70a08231", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "balanceOf", "scope": 6501, "stateMutability": "view", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Returns the number of tokens in ``owner``'s account." }, "id": 6419, "name": "StructuredDocumentation", "src": "800:76:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "owner", "scope": 6426, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6420, "name": "ElementaryTypeName", "src": "900:7:30" } ], "id": 6421, "name": "VariableDeclaration", "src": "900:13:30" } ], "id": 6422, "name": "ParameterList", "src": "899:15:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "balance", "scope": 6426, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6423, "name": "ElementaryTypeName", "src": "938:7:30" } ], "id": 6424, "name": "VariableDeclaration", "src": "938:15:30" } ], "id": 6425, "name": "ParameterList", "src": "937:17:30" } ], "id": 6426, "name": "FunctionDefinition", "src": "881:74:30" }, { "attributes": { "functionSelector": "6352211e", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "ownerOf", "scope": 6501, "stateMutability": "view", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Returns the owner of the `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "id": 6427, "name": "StructuredDocumentation", "src": "961:131:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6434, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6428, "name": "ElementaryTypeName", "src": "1114:7:30" } ], "id": 6429, "name": "VariableDeclaration", "src": "1114:15:30" } ], "id": 6430, "name": "ParameterList", "src": "1113:17:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "owner", "scope": 6434, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6431, "name": "ElementaryTypeName", "src": "1154:7:30" } ], "id": 6432, "name": "VariableDeclaration", "src": "1154:13:30" } ], "id": 6433, "name": "ParameterList", "src": "1153:15:30" } ], "id": 6434, "name": "FunctionDefinition", "src": "1097:72:30" }, { "attributes": { "functionSelector": "42842e0e", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "safeTransferFrom", "scope": 6501, "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n are aware of the ERC721 protocol to prevent tokens from being forever locked.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must exist and be owned by `from`.\n - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n Emits a {Transfer} event." }, "id": 6435, "name": "StructuredDocumentation", "src": "1175:690:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "from", "scope": 6444, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6436, "name": "ElementaryTypeName", "src": "1896:7:30" } ], "id": 6437, "name": "VariableDeclaration", "src": "1896:12:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "to", "scope": 6444, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6438, "name": "ElementaryTypeName", "src": "1910:7:30" } ], "id": 6439, "name": "VariableDeclaration", "src": "1910:10:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6444, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6440, "name": "ElementaryTypeName", "src": "1922:7:30" } ], "id": 6441, "name": "VariableDeclaration", "src": "1922:15:30" } ], "id": 6442, "name": "ParameterList", "src": "1895:43:30" }, { "attributes": { "parameters": [ null ] }, "children": [], "id": 6443, "name": "ParameterList", "src": "1947:0:30" } ], "id": 6444, "name": "FunctionDefinition", "src": "1870:78:30" }, { "attributes": { "functionSelector": "23b872dd", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "transferFrom", "scope": 6501, "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Transfers `tokenId` token from `from` to `to`.\n WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must be owned by `from`.\n - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n Emits a {Transfer} event." }, "id": 6445, "name": "StructuredDocumentation", "src": "1954:504:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "from", "scope": 6454, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6446, "name": "ElementaryTypeName", "src": "2485:7:30" } ], "id": 6447, "name": "VariableDeclaration", "src": "2485:12:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "to", "scope": 6454, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6448, "name": "ElementaryTypeName", "src": "2499:7:30" } ], "id": 6449, "name": "VariableDeclaration", "src": "2499:10:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6454, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6450, "name": "ElementaryTypeName", "src": "2511:7:30" } ], "id": 6451, "name": "VariableDeclaration", "src": "2511:15:30" } ], "id": 6452, "name": "ParameterList", "src": "2484:43:30" }, { "attributes": { "parameters": [ null ] }, "children": [], "id": 6453, "name": "ParameterList", "src": "2536:0:30" } ], "id": 6454, "name": "FunctionDefinition", "src": "2463:74:30" }, { "attributes": { "functionSelector": "095ea7b3", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "approve", "scope": 6501, "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Gives permission to `to` to transfer `tokenId` token to another account.\n The approval is cleared when the token is transferred.\n Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n Requirements:\n - The caller must own the token or be an approved operator.\n - `tokenId` must exist.\n Emits an {Approval} event." }, "id": 6455, "name": "StructuredDocumentation", "src": "2543:452:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "to", "scope": 6462, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6456, "name": "ElementaryTypeName", "src": "3017:7:30" } ], "id": 6457, "name": "VariableDeclaration", "src": "3017:10:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6462, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6458, "name": "ElementaryTypeName", "src": "3029:7:30" } ], "id": 6459, "name": "VariableDeclaration", "src": "3029:15:30" } ], "id": 6460, "name": "ParameterList", "src": "3016:29:30" }, { "attributes": { "parameters": [ null ] }, "children": [], "id": 6461, "name": "ParameterList", "src": "3054:0:30" } ], "id": 6462, "name": "FunctionDefinition", "src": "3000:55:30" }, { "attributes": { "functionSelector": "081812fc", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "getApproved", "scope": 6501, "stateMutability": "view", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Returns the account approved for `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "id": 6463, "name": "StructuredDocumentation", "src": "3061:139:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6470, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6464, "name": "ElementaryTypeName", "src": "3226:7:30" } ], "id": 6465, "name": "VariableDeclaration", "src": "3226:15:30" } ], "id": 6466, "name": "ParameterList", "src": "3225:17:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "operator", "scope": 6470, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6467, "name": "ElementaryTypeName", "src": "3266:7:30" } ], "id": 6468, "name": "VariableDeclaration", "src": "3266:16:30" } ], "id": 6469, "name": "ParameterList", "src": "3265:18:30" } ], "id": 6470, "name": "FunctionDefinition", "src": "3205:79:30" }, { "attributes": { "functionSelector": "a22cb465", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "setApprovalForAll", "scope": 6501, "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Approve or remove `operator` as an operator for the caller.\n Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n Requirements:\n - The `operator` cannot be the caller.\n Emits an {ApprovalForAll} event." }, "id": 6471, "name": "StructuredDocumentation", "src": "3290:309:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "operator", "scope": 6478, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6472, "name": "ElementaryTypeName", "src": "3631:7:30" } ], "id": 6473, "name": "VariableDeclaration", "src": "3631:16:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "_approved", "scope": 6478, "stateVariable": false, "storageLocation": "default", "type": "bool", "visibility": "internal" }, "children": [ { "attributes": { "name": "bool", "type": "bool" }, "id": 6474, "name": "ElementaryTypeName", "src": "3649:4:30" } ], "id": 6475, "name": "VariableDeclaration", "src": "3649:14:30" } ], "id": 6476, "name": "ParameterList", "src": "3630:34:30" }, { "attributes": { "parameters": [ null ] }, "children": [], "id": 6477, "name": "ParameterList", "src": "3673:0:30" } ], "id": 6478, "name": "FunctionDefinition", "src": "3604:70:30" }, { "attributes": { "functionSelector": "e985e9c5", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "isApprovedForAll", "scope": 6501, "stateMutability": "view", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n See {setApprovalForAll}" }, "id": 6479, "name": "StructuredDocumentation", "src": "3680:138:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "owner", "scope": 6488, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6480, "name": "ElementaryTypeName", "src": "3849:7:30" } ], "id": 6481, "name": "VariableDeclaration", "src": "3849:13:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "operator", "scope": 6488, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6482, "name": "ElementaryTypeName", "src": "3864:7:30" } ], "id": 6483, "name": "VariableDeclaration", "src": "3864:16:30" } ], "id": 6484, "name": "ParameterList", "src": "3848:33:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "", "scope": 6488, "stateVariable": false, "storageLocation": "default", "type": "bool", "visibility": "internal" }, "children": [ { "attributes": { "name": "bool", "type": "bool" }, "id": 6485, "name": "ElementaryTypeName", "src": "3905:4:30" } ], "id": 6486, "name": "VariableDeclaration", "src": "3905:4:30" } ], "id": 6487, "name": "ParameterList", "src": "3904:6:30" } ], "id": 6488, "name": "FunctionDefinition", "src": "3823:88:30" }, { "attributes": { "functionSelector": "b88d4fde", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "safeTransferFrom", "scope": 6501, "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, "children": [ { "attributes": { "text": " @dev Safely transfers `tokenId` token from `from` to `to`.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `tokenId` token must exist and be owned by `from`.\n - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n Emits a {Transfer} event." }, "id": 6489, "name": "StructuredDocumentation", "src": "3917:566:30" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "from", "scope": 6500, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6490, "name": "ElementaryTypeName", "src": "4514:7:30" } ], "id": 6491, "name": "VariableDeclaration", "src": "4514:12:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "to", "scope": 6500, "stateVariable": false, "storageLocation": "default", "type": "address", "visibility": "internal" }, "children": [ { "attributes": { "name": "address", "stateMutability": "nonpayable", "type": "address" }, "id": 6492, "name": "ElementaryTypeName", "src": "4528:7:30" } ], "id": 6493, "name": "VariableDeclaration", "src": "4528:10:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "tokenId", "scope": 6500, "stateVariable": false, "storageLocation": "default", "type": "uint256", "visibility": "internal" }, "children": [ { "attributes": { "name": "uint256", "type": "uint256" }, "id": 6494, "name": "ElementaryTypeName", "src": "4540:7:30" } ], "id": 6495, "name": "VariableDeclaration", "src": "4540:15:30" }, { "attributes": { "constant": false, "mutability": "mutable", "name": "data", "scope": 6500, "stateVariable": false, "storageLocation": "calldata", "type": "bytes", "visibility": "internal" }, "children": [ { "attributes": { "name": "bytes", "type": "bytes" }, "id": 6496, "name": "ElementaryTypeName", "src": "4557:5:30" } ], "id": 6497, "name": "VariableDeclaration", "src": "4557:19:30" } ], "id": 6498, "name": "ParameterList", "src": "4513:64:30" }, { "attributes": { "parameters": [ null ] }, "children": [], "id": 6499, "name": "ParameterList", "src": "4586:0:30" } ], "id": 6500, "name": "FunctionDefinition", "src": "4488:99:30" } ], "id": 6501, "name": "ContractDefinition", "src": "177:4412:30" } ], "id": 6502, "name": "SourceUnit", "src": "33:4557:30" }, "compiler": { "name": "solc", "version": "0.7.6+commit.7338295f.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.4.1", "updatedAt": "2021-06-03T23:56:22.362Z", "devdoc": { "details": "Required interface of an ERC721 compliant contract.", "events": { "Approval(address,address,uint256)": { "details": "Emitted when `owner` enables `approved` to manage the `tokenId` token." }, "ApprovalForAll(address,address,bool)": { "details": "Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets." }, "Transfer(address,address,uint256)": { "details": "Emitted when `tokenId` token is transferred from `from` to `to`." } }, "kind": "dev", "methods": { "approve(address,uint256)": { "details": "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." }, "balanceOf(address)": { "details": "Returns the number of tokens in ``owner``'s account." }, "getApproved(uint256)": { "details": "Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist." }, "isApprovedForAll(address,address)": { "details": "Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll}" }, "ownerOf(uint256)": { "details": "Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist." }, "safeTransferFrom(address,address,uint256)": { "details": "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." }, "safeTransferFrom(address,address,uint256,bytes)": { "details": "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." }, "setApprovalForAll(address,bool)": { "details": "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." }, "supportsInterface(bytes4)": { "details": "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." }, "transferFrom(address,address,uint256)": { "details": "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." } }, "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 } }