@etherisc/depeg-contracts

{ "abi": [ { "inputs": [ { "internalType": "string", "name": "name_", "type": "string" }, { "internalType": "string", "name": "symbol_", "type": "string" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "approved", "type": "address" }, { "indexed": true, "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "operator", "type": "address" }, { "indexed": false, "internalType": "bool", "name": "approved", "type": "bool" } ], "name": "ApprovalForAll", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": true, "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "approve", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "operator", "type": "address" } ], "name": "isApprovedForAll", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "ownerOf", "outputs": [ { "internalType": "address", "name": "", "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": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "tokenURI", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "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" } ], "allSourcePaths": { "10": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Address.sol", "11": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Context.sol", "12": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Strings.sol", "14": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/introspection/ERC165.sol", "15": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/introspection/IERC165.sol", "6": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/ERC721.sol", "7": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/IERC721.sol", "8": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/IERC721Receiver.sol", "9": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/extensions/IERC721Metadata.sol" }, "ast": { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/ERC721.sol", "exportedSymbols": { "Address": [ 24852 ], "Context": [ 15648 ], "ERC165": [ 24921 ], "ERC721": [ 24557 ], "IERC165": [ 22864 ], "IERC721": [ 13932 ], "IERC721Metadata": [ 24897 ], "IERC721Receiver": [ 24870 ], "Strings": [ 16154 ] }, "id": 24558, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 23692, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "107:23:6" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/IERC721.sol", "file": "./IERC721.sol", "id": 23693, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 13933, "src": "132:23:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/IERC721Receiver.sol", "file": "./IERC721Receiver.sol", "id": 23694, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 24871, "src": "156:31:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/token/ERC721/extensions/IERC721Metadata.sol", "file": "./extensions/IERC721Metadata.sol", "id": 23695, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 24898, "src": "188:42:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Address.sol", "file": "../../utils/Address.sol", "id": 23696, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 24853, "src": "231:33:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Context.sol", "file": "../../utils/Context.sol", "id": 23697, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 15649, "src": "265:33:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Strings.sol", "file": "../../utils/Strings.sol", "id": 23698, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 16155, "src": "299:33:6", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/introspection/ERC165.sol", "file": "../../utils/introspection/ERC165.sol", "id": 23699, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 24558, "sourceUnit": 24922, "src": "333:46:6", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 23701, "name": "Context", "nodeType": "IdentifierPath", "referencedDeclaration": 15648, "src": "647:7:6" }, "id": 23702, "nodeType": "InheritanceSpecifier", "src": "647:7:6" }, { "baseName": { "id": 23703, "name": "ERC165", "nodeType": "IdentifierPath", "referencedDeclaration": 24921, "src": "656:6:6" }, "id": 23704, "nodeType": "InheritanceSpecifier", "src": "656:6:6" }, { "baseName": { "id": 23705, "name": "IERC721", "nodeType": "IdentifierPath", "referencedDeclaration": 13932, "src": "664:7:6" }, "id": 23706, "nodeType": "InheritanceSpecifier", "src": "664:7:6" }, { "baseName": { "id": 23707, "name": "IERC721Metadata", "nodeType": "IdentifierPath", "referencedDeclaration": 24897, "src": "673:15:6" }, "id": 23708, "nodeType": "InheritanceSpecifier", "src": "673:15:6" } ], "contractDependencies": [ 13932, 15648, 22864, 24897, 24921 ], "contractKind": "contract", "documentation": { "id": 23700, "nodeType": "StructuredDocumentation", "src": "381:246:6", "text": " @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n the Metadata extension, but not including the Enumerable extension, which is available separately as\n {ERC721Enumerable}." }, "fullyImplemented": true, "id": 24557, "linearizedBaseContracts": [ 24557, 24897, 13932, 24921, 22864, 15648 ], "name": "ERC721", "nameLocation": "637:6:6", "nodeType": "ContractDefinition", "nodes": [ { "id": 23711, "libraryName": { "id": 23709, "name": "Address", "nodeType": "IdentifierPath", "referencedDeclaration": 24852, "src": "701:7:6" }, "nodeType": "UsingForDirective", "src": "695:26:6", "typeName": { "id": 23710, "name": "address", "nodeType": "ElementaryTypeName", "src": "713:7:6", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "id": 23714, "libraryName": { "id": 23712, "name": "Strings", "nodeType": "IdentifierPath", "referencedDeclaration": 16154, "src": "732:7:6" }, "nodeType": "UsingForDirective", "src": "726:26:6", "typeName": { "id": 23713, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "744:7:6", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 23716, "mutability": "mutable", "name": "_name", "nameLocation": "791:5:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "776:20:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 23715, "name": "string", "nodeType": "ElementaryTypeName", "src": "776:6:6", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "private" }, { "constant": false, "id": 23718, "mutability": "mutable", "name": "_symbol", "nameLocation": "838:7:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "823:22:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 23717, "name": "string", "nodeType": "ElementaryTypeName", "src": "823:6:6", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "private" }, { "constant": false, "id": 23722, "mutability": "mutable", "name": "_owners", "nameLocation": "934:7:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "898:43:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 23721, "keyType": { "id": 23719, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "906:7:6", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "898:27:6", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 23720, "name": "address", "nodeType": "ElementaryTypeName", "src": "917:7:6", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "visibility": "private" }, { "constant": false, "id": 23726, "mutability": "mutable", "name": "_balances", "nameLocation": "1028:9:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "992:45:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 23725, "keyType": { "id": 23723, "name": "address", "nodeType": "ElementaryTypeName", "src": "1000:7:6", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "992:27:6", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 23724, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1011:7:6", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "visibility": "private" }, { "constant": false, "id": 23730, "mutability": "mutable", "name": "_tokenApprovals", "nameLocation": "1129:15:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "1093:51:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 23729, "keyType": { "id": 23727, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1101:7:6", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "1093:27:6", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 23728, "name": "address", "nodeType": "ElementaryTypeName", "src": "1112:7:6", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "visibility": "private" }, { "constant": false, "id": 23736, "mutability": "mutable", "name": "_operatorApprovals", "nameLocation": "1252:18:6", "nodeType": "VariableDeclaration", "scope": 24557, "src": "1199:71:6", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "typeName": { "id": 23735, "keyType": { "id": 23731, "name": "address", "nodeType": "ElementaryTypeName", "src": "1207:7:6", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "1199:44:6", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "valueType": { "id": 23734, "keyType": { "id": 23732, "name": "address", "nodeType": "ElementaryTypeName", "src": "1226:7:6", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "1218:24:6", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 23733, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1237:4:6", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } } }, "visibility": "private" }, { "body": { "id": 23752, "nodeType": "Block", "src": "1446:57:6", "statements": [ { "expression": { "id": 23746, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 23744, "name": "_name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23716, "src": "1456:5:6", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 23745, "name": "name_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23739, "src": "1464:5:6", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "1456:13:6", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 23747, "nodeType": "ExpressionStatement", "src": "1456:13:6" }, { "expression": { "id": 23750, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 23748, "name": "_symbol", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23718, "src": "1479:7:6", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 23749, "name": "symbol_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23741, "src": "1489:7:6", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "1479:17:6", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 23751, "nodeType": "ExpressionStatement", "src": "1479:17:6" } ] }, "documentation": { "id": 23737, "nodeType": "StructuredDocumentation", "src": "1277:108:6", "text": " @dev Initializes the contract by setting a `name` and a `symbol` to the token collection." }, "id": 23753, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nameLocation": "-1:-1:-1", "nodeType": "FunctionDefinition", "parameters": { "id": 23742, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 23739, "mutability": "mutable", "name": "name_", "nameLocation": "1416:5:6", "nodeType": "VariableDeclaration", "scope": 23753, "src": "1402:19:6", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 23738, "name": "string", "nodeType": "ElementaryTypeName", "src": "1402:6:6", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "internal" }, { "constant": false, "id": 23741, "mutability": "mutable", "name": "symbol_", "nameLocation": "1437:7:6", "nodeType": "VariableDeclaration", "scope": 23753, "src": "1423:21:6", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 23740, "name": "string", "nodeType": "ElementaryTypeName", "src": "1423:6:6", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "internal" } ], "src": "1401:44:6" }, "returnParameters": { "id": 23743, "nodeType": "ParameterList", "parameters": [], "src": "1446:0:6" }, "scope": 24557, "src": "1390:113:6", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 22863, 24920 ], "body": { "id": 23783, "nodeType": "Block", "src": "1678:192:6", "statements": [ { "expression": { "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 23781, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 23776, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 23769, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 23764, "name": "interfaceId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23756, "src": "1707:11:6", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "expression": { "arguments": [ { "id": 23766, "name": "IERC721", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13932, "src": "1727:7:6", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC721_$13932_$", "typeString": "type(contract IERC721)" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_type$_t_contract$_IERC721_$13932_$", "typeString": "type(contract IERC721)" } ], "id": 23765, "name": "type", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -27, "src": "1722:4:6", "typeDescriptions": { "typeIdentifier": "t_function_metatype_pure$__$returns$__$", "typeString": "function () pure" } }, "id": 23767, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1722:13:6", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_magic_meta_type_t_contract$_IERC721_$13932", "typeString": "type(contract IERC721)" } }, "id": 23768, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "interfaceId", "nodeType": "MemberAccess", "src": "1722:25:6", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "src": "1707:40:6", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 23775, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 23770, "name": "interfaceId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23756, "src": "1763:11:6", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "expression": { "arguments": [ { "id": 23772, "name": "IERC721Metadata", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 24897, "src": "1783:15:6", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC721Metadata_$24897_$", "typeString": "type(contract IERC721Metadata)" } } ], 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