{ "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\":\"0.8.11+commit.d7f03943\"},\"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\":\"london\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0x516a22876c1fab47f49b1bc22b4614491cd05338af8bd2e7b382da090a079990\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://a439187f7126d31add4557f82d8aed6be0162007cd7182c48fd934dbab8f3849\",\"dweb:/ipfs/QmRPLguRFvrRJS7r6F1bcLvsx6q1VrgjEpZafyeL8D7xZh\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0x447a5f3ddc18419d41ff92b3773fb86471b1db25773e07f877f548918a185bf1\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://be161e54f24e5c6fae81a12db1a8ae87bc5ae1b0ddc805d82a1440a68455088f\",\"dweb:/ipfs/QmP7C3CHdY9urF4dEMb9wmsp1wMxHF6nhA2yQE5SKiPAdy\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "", "deployedSourceMap": "", "source": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/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(\n address from,\n address to,\n uint256 tokenId\n ) 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(\n address from,\n address to,\n uint256 tokenId\n ) 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(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n", "sourcePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "ast": { "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "exportedSymbols": { "IERC165": [ 6264 ], "IERC721": [ 4777 ] }, "id": 4778, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 4663, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "93:23:21" }, { "absolutePath": "@openzeppelin/contracts/utils/introspection/IERC165.sol", "file": "../../utils/introspection/IERC165.sol", "id": 4664, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 4778, "sourceUnit": 6265, "src": "118:47:21", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 4666, "name": "IERC165", "nodeType": "IdentifierPath", "referencedDeclaration": 6264, "src": "256:7:21" }, "id": 4667, "nodeType": "InheritanceSpecifier", "src": "256:7:21" } ], "canonicalName": "IERC721", "contractDependencies": [], "contractKind": "interface", "documentation": { "id": 4665, "nodeType": "StructuredDocumentation", "src": "167:67:21", "text": " @dev Required interface of an ERC721 compliant contract." }, "fullyImplemented": false, "id": 4777, "linearizedBaseContracts": [ 4777, 6264 ], "name": "IERC721", "nameLocation": "245:7:21", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": { "id": 4668, "nodeType": "StructuredDocumentation", "src": "270:88:21", "text": " @dev Emitted when `tokenId` token is transferred from `from` to `to`." }, "id": 4676, "name": "Transfer", "nameLocation": "369:8:21", "nodeType": "EventDefinition", "parameters": { "id": 4675, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4670, "indexed": true, "mutability": "mutable", "name": "from", "nameLocation": "394:4:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "378:20:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4669, "name": "address", "nodeType": "ElementaryTypeName", "src": "378:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4672, "indexed": true, "mutability": "mutable", "name": "to", "nameLocation": "416:2:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "400:18:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4671, "name": "address", "nodeType": "ElementaryTypeName", "src": "400:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4674, "indexed": true, "mutability": "mutable", "name": "tokenId", "nameLocation": "436:7:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "420:23:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4673, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "420:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "377:67:21" }, "src": "363:82:21" }, { "anonymous": false, "documentation": { "id": 4677, "nodeType": "StructuredDocumentation", "src": "451:94:21", "text": " @dev Emitted when `owner` enables `approved` to manage the `tokenId` token." }, "id": 4685, "name": "Approval", "nameLocation": "556:8:21", "nodeType": "EventDefinition", "parameters": { "id": 4684, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4679, "indexed": true, "mutability": "mutable", "name": "owner", "nameLocation": "581:5:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "565:21:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4678, "name": "address", "nodeType": "ElementaryTypeName", "src": "565:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4681, "indexed": true, "mutability": "mutable", "name": "approved", "nameLocation": "604:8:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "588:24:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4680, "name": "address", "nodeType": "ElementaryTypeName", "src": "588:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4683, "indexed": true, "mutability": "mutable", "name": "tokenId", "nameLocation": "630:7:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "614:23:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4682, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "614:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "564:74:21" }, "src": "550:89:21" }, { "anonymous": false, "documentation": { "id": 4686, "nodeType": "StructuredDocumentation", "src": "645:117:21", "text": " @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets." }, "id": 4694, "name": "ApprovalForAll", "nameLocation": "773:14:21", "nodeType": "EventDefinition", "parameters": { "id": 4693, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4688, "indexed": true, "mutability": "mutable", "name": "owner", "nameLocation": "804:5:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "788:21:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4687, "name": "address", "nodeType": "ElementaryTypeName", "src": "788:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4690, "indexed": true, "mutability": "mutable", "name": "operator", "nameLocation": "827:8:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "811:24:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4689, "name": "address", "nodeType": "ElementaryTypeName", "src": "811:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4692, "indexed": false, "mutability": "mutable", "name": "approved", "nameLocation": "842:8:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "837:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4691, "name": "bool", "nodeType": "ElementaryTypeName", "src": "837:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "787:64:21" }, "src": "767:85:21" }, { "documentation": { "id": 4695, "nodeType": "StructuredDocumentation", "src": "858:76:21", "text": " @dev Returns the number of tokens in ``owner``'s account." }, "functionSelector": "70a08231", "id": 4702, "implemented": false, "kind": "function", "modifiers": [], "name": "balanceOf", "nameLocation": "948:9:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4698, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4697, "mutability": "mutable", "name": "owner", "nameLocation": "966:5:21", "nodeType": "VariableDeclaration", "scope": 4702, "src": "958:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4696, "name": "address", "nodeType": "ElementaryTypeName", "src": "958:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "957:15:21" }, "returnParameters": { "id": 4701, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4700, "mutability": "mutable", "name": "balance", "nameLocation": "1004:7:21", "nodeType": "VariableDeclaration", "scope": 4702, "src": "996:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4699, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "996:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "995:17:21" }, "scope": 4777, "src": "939:74:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4703, "nodeType": "StructuredDocumentation", "src": "1019:131:21", "text": " @dev Returns the owner of the `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "6352211e", "id": 4710, "implemented": false, "kind": "function", "modifiers": [], "name": "ownerOf", "nameLocation": "1164:7:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4706, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4705, "mutability": "mutable", "name": "tokenId", "nameLocation": "1180:7:21", "nodeType": "VariableDeclaration", "scope": 4710, "src": "1172:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4704, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1172:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1171:17:21" }, "returnParameters": { "id": 4709, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4708, "mutability": "mutable", "name": "owner", "nameLocation": "1220:5:21", "nodeType": "VariableDeclaration", "scope": 4710, "src": "1212:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4707, "name": "address", "nodeType": "ElementaryTypeName", "src": "1212:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "1211:15:21" }, "scope": 4777, "src": "1155:72:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4711, "nodeType": "StructuredDocumentation", "src": "1233:690:21", "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": 4720, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nameLocation": "1937:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4718, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4713, "mutability": "mutable", "name": "from", "nameLocation": "1971:4:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "1963:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4712, "name": "address", "nodeType": "ElementaryTypeName", "src": "1963:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4715, "mutability": "mutable", "name": "to", "nameLocation": "1993:2:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "1985:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4714, "name": "address", "nodeType": "ElementaryTypeName", "src": "1985:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4717, "mutability": "mutable", "name": "tokenId", "nameLocation": "2013:7:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "2005:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4716, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2005:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1953:73:21" }, "returnParameters": { "id": 4719, "nodeType": "ParameterList", "parameters": [], "src": "2035:0:21" }, "scope": 4777, "src": "1928:108:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4721, "nodeType": "StructuredDocumentation", "src": "2042:504:21", "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": 4730, "implemented": false, "kind": "function", "modifiers": [], "name": "transferFrom", "nameLocation": "2560:12:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4728, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4723, "mutability": "mutable", "name": "from", "nameLocation": "2590:4:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2582:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4722, "name": "address", "nodeType": "ElementaryTypeName", "src": "2582:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4725, "mutability": "mutable", "name": "to", "nameLocation": "2612:2:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2604:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4724, "name": "address", "nodeType": "ElementaryTypeName", "src": "2604:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4727, "mutability": "mutable", "name": "tokenId", "nameLocation": "2632:7:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2624:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4726, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2624:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2572:73:21" }, "returnParameters": { "id": 4729, "nodeType": "ParameterList", "parameters": [], "src": "2654:0:21" }, "scope": 4777, "src": "2551:104:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4731, "nodeType": "StructuredDocumentation", "src": "2661:452:21", "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": 4738, "implemented": false, "kind": "function", "modifiers": [], "name": "approve", "nameLocation": "3127:7:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4736, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4733, "mutability": "mutable", "name": "to", "nameLocation": "3143:2:21", "nodeType": "VariableDeclaration", "scope": 4738, "src": "3135:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4732, "name": "address", "nodeType": "ElementaryTypeName", "src": "3135:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4735, "mutability": "mutable", "name": "tokenId", "nameLocation": "3155:7:21", "nodeType": "VariableDeclaration", "scope": 4738, "src": "3147:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4734, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3147:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3134:29:21" }, "returnParameters": { "id": 4737, "nodeType": "ParameterList", "parameters": [], "src": "3172:0:21" }, "scope": 4777, "src": "3118:55:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4739, "nodeType": "StructuredDocumentation", "src": "3179:139:21", "text": " @dev Returns the account approved for `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "081812fc", "id": 4746, "implemented": false, "kind": "function", "modifiers": [], "name": "getApproved", "nameLocation": "3332:11:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4742, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4741, "mutability": "mutable", "name": "tokenId", "nameLocation": "3352:7:21", "nodeType": "VariableDeclaration", "scope": 4746, "src": "3344:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4740, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3344:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3343:17:21" }, "returnParameters": { "id": 4745, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4744, "mutability": "mutable", "name": "operator", "nameLocation": "3392:8:21", "nodeType": "VariableDeclaration", "scope": 4746, "src": "3384:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4743, "name": "address", "nodeType": "ElementaryTypeName", "src": "3384:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3383:18:21" }, "scope": 4777, "src": "3323:79:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4747, "nodeType": "StructuredDocumentation", "src": "3408:309:21", "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": 4754, "implemented": false, "kind": "function", "modifiers": [], "name": "setApprovalForAll", "nameLocation": "3731:17:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4752, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4749, "mutability": "mutable", "name": "operator", "nameLocation": "3757:8:21", "nodeType": "VariableDeclaration", "scope": 4754, "src": "3749:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4748, "name": "address", "nodeType": "ElementaryTypeName", "src": "3749:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4751, "mutability": "mutable", "name": "_approved", "nameLocation": "3772:9:21", "nodeType": "VariableDeclaration", "scope": 4754, "src": "3767:14:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4750, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3767:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "3748:34:21" }, "returnParameters": { "id": 4753, "nodeType": "ParameterList", "parameters": [], "src": "3791:0:21" }, "scope": 4777, "src": "3722:70:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4755, "nodeType": "StructuredDocumentation", "src": "3798:138:21", "text": " @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n See {setApprovalForAll}" }, "functionSelector": "e985e9c5", "id": 4764, "implemented": false, "kind": "function", "modifiers": [], "name": "isApprovedForAll", "nameLocation": "3950:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4760, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4757, "mutability": "mutable", "name": "owner", "nameLocation": "3975:5:21", "nodeType": "VariableDeclaration", "scope": 4764, "src": "3967:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4756, "name": "address", "nodeType": "ElementaryTypeName", "src": "3967:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4759, "mutability": "mutable", "name": "operator", "nameLocation": "3990:8:21", "nodeType": "VariableDeclaration", "scope": 4764, "src": "3982:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4758, "name": "address", "nodeType": "ElementaryTypeName", "src": "3982:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3966:33:21" }, "returnParameters": { "id": 4763, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4762, "mutability": "mutable", "name": "", "nameLocation": "-1:-1:-1", "nodeType": "VariableDeclaration", "scope": 4764, "src": "4023:4:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4761, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4023:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "4022:6:21" }, "scope": 4777, "src": "3941:88:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4765, "nodeType": "StructuredDocumentation", "src": "4035:556:21", "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": 4776, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nameLocation": "4605:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4774, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4767, "mutability": "mutable", "name": "from", "nameLocation": "4639:4:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4631:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4766, "name": "address", "nodeType": "ElementaryTypeName", "src": "4631:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4769, "mutability": "mutable", "name": "to", "nameLocation": "4661:2:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4653:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4768, "name": "address", "nodeType": "ElementaryTypeName", "src": "4653:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4771, "mutability": "mutable", "name": "tokenId", "nameLocation": "4681:7:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4673:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4770, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4673:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 4773, "mutability": "mutable", "name": "data", "nameLocation": "4713:4:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4698:19:21", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 4772, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4698:5:21", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "4621:102:21" }, "returnParameters": { "id": 4775, "nodeType": "ParameterList", "parameters": [], "src": "4732:0:21" }, "scope": 4777, "src": "4596:137:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 4778, "src": "235:4500:21", "usedErrors": [] } ], "src": "93:4643:21" }, "legacyAST": { "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol", "exportedSymbols": { "IERC165": [ 6264 ], "IERC721": [ 4777 ] }, "id": 4778, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 4663, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "93:23:21" }, { "absolutePath": "@openzeppelin/contracts/utils/introspection/IERC165.sol", "file": "../../utils/introspection/IERC165.sol", "id": 4664, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 4778, "sourceUnit": 6265, "src": "118:47:21", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 4666, "name": "IERC165", "nodeType": "IdentifierPath", "referencedDeclaration": 6264, "src": "256:7:21" }, "id": 4667, "nodeType": "InheritanceSpecifier", "src": "256:7:21" } ], "canonicalName": "IERC721", "contractDependencies": [], "contractKind": "interface", "documentation": { "id": 4665, "nodeType": "StructuredDocumentation", "src": "167:67:21", "text": " @dev Required interface of an ERC721 compliant contract." }, "fullyImplemented": false, "id": 4777, "linearizedBaseContracts": [ 4777, 6264 ], "name": "IERC721", "nameLocation": "245:7:21", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": { "id": 4668, "nodeType": "StructuredDocumentation", "src": "270:88:21", "text": " @dev Emitted when `tokenId` token is transferred from `from` to `to`." }, "id": 4676, "name": "Transfer", "nameLocation": "369:8:21", "nodeType": "EventDefinition", "parameters": { "id": 4675, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4670, "indexed": true, "mutability": "mutable", "name": "from", "nameLocation": "394:4:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "378:20:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4669, "name": "address", "nodeType": "ElementaryTypeName", "src": "378:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4672, "indexed": true, "mutability": "mutable", "name": "to", "nameLocation": "416:2:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "400:18:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4671, "name": "address", "nodeType": "ElementaryTypeName", "src": "400:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4674, "indexed": true, "mutability": "mutable", "name": "tokenId", "nameLocation": "436:7:21", "nodeType": "VariableDeclaration", "scope": 4676, "src": "420:23:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4673, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "420:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "377:67:21" }, "src": "363:82:21" }, { "anonymous": false, "documentation": { "id": 4677, "nodeType": "StructuredDocumentation", "src": "451:94:21", "text": " @dev Emitted when `owner` enables `approved` to manage the `tokenId` token." }, "id": 4685, "name": "Approval", "nameLocation": "556:8:21", "nodeType": "EventDefinition", "parameters": { "id": 4684, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4679, "indexed": true, "mutability": "mutable", "name": "owner", "nameLocation": "581:5:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "565:21:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4678, "name": "address", "nodeType": "ElementaryTypeName", "src": "565:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4681, "indexed": true, "mutability": "mutable", "name": "approved", "nameLocation": "604:8:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "588:24:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4680, "name": "address", "nodeType": "ElementaryTypeName", "src": "588:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4683, "indexed": true, "mutability": "mutable", "name": "tokenId", "nameLocation": "630:7:21", "nodeType": "VariableDeclaration", "scope": 4685, "src": "614:23:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4682, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "614:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "564:74:21" }, "src": "550:89:21" }, { "anonymous": false, "documentation": { "id": 4686, "nodeType": "StructuredDocumentation", "src": "645:117:21", "text": " @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets." }, "id": 4694, "name": "ApprovalForAll", "nameLocation": "773:14:21", "nodeType": "EventDefinition", "parameters": { "id": 4693, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4688, "indexed": true, "mutability": "mutable", "name": "owner", "nameLocation": "804:5:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "788:21:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4687, "name": "address", "nodeType": "ElementaryTypeName", "src": "788:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4690, "indexed": true, "mutability": "mutable", "name": "operator", "nameLocation": "827:8:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "811:24:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4689, "name": "address", "nodeType": "ElementaryTypeName", "src": "811:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4692, "indexed": false, "mutability": "mutable", "name": "approved", "nameLocation": "842:8:21", "nodeType": "VariableDeclaration", "scope": 4694, "src": "837:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4691, "name": "bool", "nodeType": "ElementaryTypeName", "src": "837:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "787:64:21" }, "src": "767:85:21" }, { "documentation": { "id": 4695, "nodeType": "StructuredDocumentation", "src": "858:76:21", "text": " @dev Returns the number of tokens in ``owner``'s account." }, "functionSelector": "70a08231", "id": 4702, "implemented": false, "kind": "function", "modifiers": [], "name": "balanceOf", "nameLocation": "948:9:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4698, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4697, "mutability": "mutable", "name": "owner", "nameLocation": "966:5:21", "nodeType": "VariableDeclaration", "scope": 4702, "src": "958:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4696, "name": "address", "nodeType": "ElementaryTypeName", "src": "958:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "957:15:21" }, "returnParameters": { "id": 4701, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4700, "mutability": "mutable", "name": "balance", "nameLocation": "1004:7:21", "nodeType": "VariableDeclaration", "scope": 4702, "src": "996:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4699, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "996:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "995:17:21" }, "scope": 4777, "src": "939:74:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4703, "nodeType": "StructuredDocumentation", "src": "1019:131:21", "text": " @dev Returns the owner of the `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "6352211e", "id": 4710, "implemented": false, "kind": "function", "modifiers": [], "name": "ownerOf", "nameLocation": "1164:7:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4706, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4705, "mutability": "mutable", "name": "tokenId", "nameLocation": "1180:7:21", "nodeType": "VariableDeclaration", "scope": 4710, "src": "1172:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4704, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1172:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1171:17:21" }, "returnParameters": { "id": 4709, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4708, "mutability": "mutable", "name": "owner", "nameLocation": "1220:5:21", "nodeType": "VariableDeclaration", "scope": 4710, "src": "1212:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4707, "name": "address", "nodeType": "ElementaryTypeName", "src": "1212:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "1211:15:21" }, "scope": 4777, "src": "1155:72:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4711, "nodeType": "StructuredDocumentation", "src": "1233:690:21", "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": 4720, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nameLocation": "1937:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4718, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4713, "mutability": "mutable", "name": "from", "nameLocation": "1971:4:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "1963:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4712, "name": "address", "nodeType": "ElementaryTypeName", "src": "1963:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4715, "mutability": "mutable", "name": "to", "nameLocation": "1993:2:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "1985:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4714, "name": "address", "nodeType": "ElementaryTypeName", "src": "1985:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4717, "mutability": "mutable", "name": "tokenId", "nameLocation": "2013:7:21", "nodeType": "VariableDeclaration", "scope": 4720, "src": "2005:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4716, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2005:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1953:73:21" }, "returnParameters": { "id": 4719, "nodeType": "ParameterList", "parameters": [], "src": "2035:0:21" }, "scope": 4777, "src": "1928:108:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4721, "nodeType": "StructuredDocumentation", "src": "2042:504:21", "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": 4730, "implemented": false, "kind": "function", "modifiers": [], "name": "transferFrom", "nameLocation": "2560:12:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4728, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4723, "mutability": "mutable", "name": "from", "nameLocation": "2590:4:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2582:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4722, "name": "address", "nodeType": "ElementaryTypeName", "src": "2582:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4725, "mutability": "mutable", "name": "to", "nameLocation": "2612:2:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2604:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4724, "name": "address", "nodeType": "ElementaryTypeName", "src": "2604:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4727, "mutability": "mutable", "name": "tokenId", "nameLocation": "2632:7:21", "nodeType": "VariableDeclaration", "scope": 4730, "src": "2624:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4726, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2624:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2572:73:21" }, "returnParameters": { "id": 4729, "nodeType": "ParameterList", "parameters": [], "src": "2654:0:21" }, "scope": 4777, "src": "2551:104:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4731, "nodeType": "StructuredDocumentation", "src": "2661:452:21", "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": 4738, "implemented": false, "kind": "function", "modifiers": [], "name": "approve", "nameLocation": "3127:7:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4736, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4733, "mutability": "mutable", "name": "to", "nameLocation": "3143:2:21", "nodeType": "VariableDeclaration", "scope": 4738, "src": "3135:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4732, "name": "address", "nodeType": "ElementaryTypeName", "src": "3135:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4735, "mutability": "mutable", "name": "tokenId", "nameLocation": "3155:7:21", "nodeType": "VariableDeclaration", "scope": 4738, "src": "3147:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4734, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3147:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3134:29:21" }, "returnParameters": { "id": 4737, "nodeType": "ParameterList", "parameters": [], "src": "3172:0:21" }, "scope": 4777, "src": "3118:55:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4739, "nodeType": "StructuredDocumentation", "src": "3179:139:21", "text": " @dev Returns the account approved for `tokenId` token.\n Requirements:\n - `tokenId` must exist." }, "functionSelector": "081812fc", "id": 4746, "implemented": false, "kind": "function", "modifiers": [], "name": "getApproved", "nameLocation": "3332:11:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4742, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4741, "mutability": "mutable", "name": "tokenId", "nameLocation": "3352:7:21", "nodeType": "VariableDeclaration", "scope": 4746, "src": "3344:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4740, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3344:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3343:17:21" }, "returnParameters": { "id": 4745, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4744, "mutability": "mutable", "name": "operator", "nameLocation": "3392:8:21", "nodeType": "VariableDeclaration", "scope": 4746, "src": "3384:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4743, "name": "address", "nodeType": "ElementaryTypeName", "src": "3384:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3383:18:21" }, "scope": 4777, "src": "3323:79:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4747, "nodeType": "StructuredDocumentation", "src": "3408:309:21", "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": 4754, "implemented": false, "kind": "function", "modifiers": [], "name": "setApprovalForAll", "nameLocation": "3731:17:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4752, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4749, "mutability": "mutable", "name": "operator", "nameLocation": "3757:8:21", "nodeType": "VariableDeclaration", "scope": 4754, "src": "3749:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4748, "name": "address", "nodeType": "ElementaryTypeName", "src": "3749:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4751, "mutability": "mutable", "name": "_approved", "nameLocation": "3772:9:21", "nodeType": "VariableDeclaration", "scope": 4754, "src": "3767:14:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4750, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3767:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "3748:34:21" }, "returnParameters": { "id": 4753, "nodeType": "ParameterList", "parameters": [], "src": "3791:0:21" }, "scope": 4777, "src": "3722:70:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4755, "nodeType": "StructuredDocumentation", "src": "3798:138:21", "text": " @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n See {setApprovalForAll}" }, "functionSelector": "e985e9c5", "id": 4764, "implemented": false, "kind": "function", "modifiers": [], "name": "isApprovedForAll", "nameLocation": "3950:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4760, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4757, "mutability": "mutable", "name": "owner", "nameLocation": "3975:5:21", "nodeType": "VariableDeclaration", "scope": 4764, "src": "3967:13:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4756, "name": "address", "nodeType": "ElementaryTypeName", "src": "3967:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4759, "mutability": "mutable", "name": "operator", "nameLocation": "3990:8:21", "nodeType": "VariableDeclaration", "scope": 4764, "src": "3982:16:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4758, "name": "address", "nodeType": "ElementaryTypeName", "src": "3982:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "3966:33:21" }, "returnParameters": { "id": 4763, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4762, "mutability": "mutable", "name": "", "nameLocation": "-1:-1:-1", "nodeType": "VariableDeclaration", "scope": 4764, "src": "4023:4:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4761, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4023:4:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "4022:6:21" }, "scope": 4777, "src": "3941:88:21", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "documentation": { "id": 4765, "nodeType": "StructuredDocumentation", "src": "4035:556:21", "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": 4776, "implemented": false, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nameLocation": "4605:16:21", "nodeType": "FunctionDefinition", "parameters": { "id": 4774, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4767, "mutability": "mutable", "name": "from", "nameLocation": "4639:4:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4631:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4766, "name": "address", "nodeType": "ElementaryTypeName", "src": "4631:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4769, "mutability": "mutable", "name": "to", "nameLocation": "4661:2:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4653:10:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4768, "name": "address", "nodeType": "ElementaryTypeName", "src": "4653:7:21", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 4771, "mutability": "mutable", "name": "tokenId", "nameLocation": "4681:7:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4673:15:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4770, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4673:7:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 4773, "mutability": "mutable", "name": "data", "nameLocation": "4713:4:21", "nodeType": "VariableDeclaration", "scope": 4776, "src": "4698:19:21", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 4772, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4698:5:21", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "4621:102:21" }, "returnParameters": { "id": 4775, "nodeType": "ParameterList", "parameters": [], "src": "4732:0:21" }, "scope": 4777, "src": "4596:137:21", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 4778, "src": "235:4500:21", "usedErrors": [] } ], "src": "93:4643:21" }, "compiler": { "name": "solc", "version": "0.8.11+commit.d7f03943.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.4.4", "updatedAt": "2022-03-06T23:47:11.047Z", "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 } }