{ "fileName": "ERC721Burnable.sol", "contractName": "ERC721BurnableUpgradeSafe", "source": "pragma solidity ^0.6.0;\n\nimport \"../../GSN/Context.sol\";\nimport \"./ERC721.sol\";\nimport \"../../Initializable.sol\";\n\n/**\n * @title ERC721 Burnable Token\n * @dev ERC721 Token that can be irreversibly burned (destroyed).\n */\nabstract contract ERC721BurnableUpgradeSafe is Initializable, ContextUpgradeSafe, ERC721UpgradeSafe {\n function __ERC721Burnable_init() internal initializer {\n __Context_init_unchained();\n __ERC165_init_unchained();\n __ERC721Burnable_init_unchained();\n }\n\n function __ERC721Burnable_init_unchained() internal initializer {\n\n\n }\n\n /**\n * @dev Burns a specific ERC721 token.\n * @param tokenId uint256 id of the ERC721 token to be burned.\n */\n function burn(uint256 tokenId) public virtual {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721Burnable: caller is not owner nor approved\");\n _burn(tokenId);\n }\n\n uint256[50] private __gap;\n}\n", "sourcePath": "contracts/token/ERC721/ERC721Burnable.sol", "sourceMap": "", "deployedSourceMap": "", "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": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "baseURI", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "burn", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "operator", "type": "address" } ], "name": "isApprovedForAll", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "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": "index", "type": "uint256" } ], "name": "tokenByIndex", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "uint256", "name": "index", "type": "uint256" } ], "name": "tokenOfOwnerByIndex", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "tokenURI", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "transferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "ast": { "absolutePath": "contracts/token/ERC721/ERC721Burnable.sol", "exportedSymbols": { "ERC721BurnableUpgradeSafe": [ 12261 ] }, "id": 12262, "nodeType": "SourceUnit", "nodes": [ { "id": 12205, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:87" }, { "absolutePath": "contracts/GSN/Context.sol", "file": "../../GSN/Context.sol", "id": 12206, "nodeType": "ImportDirective", "scope": 12262, "sourceUnit": 45, "src": "25:31:87", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/token/ERC721/ERC721.sol", "file": "./ERC721.sol", "id": 12207, "nodeType": "ImportDirective", "scope": 12262, "sourceUnit": 12204, "src": "57:22:87", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/Initializable.sol", "file": "../../Initializable.sol", "id": 12208, "nodeType": "ImportDirective", "scope": 12262, "sourceUnit": 1408, "src": "80:33:87", "symbolAliases": [], "unitAlias": "" }, { "abstract": true, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 12210, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1407, "src": "268:13:87", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$1407", "typeString": "contract Initializable" } }, "id": 12211, "nodeType": "InheritanceSpecifier", "src": "268:13:87" }, { "arguments": null, "baseName": { "contractScope": null, "id": 12212, "name": "ContextUpgradeSafe", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 44, "src": "283:18:87", "typeDescriptions": { "typeIdentifier": "t_contract$_ContextUpgradeSafe_$44", "typeString": "contract ContextUpgradeSafe" } }, "id": 12213, "nodeType": "InheritanceSpecifier", "src": "283:18:87" }, { "arguments": null, "baseName": { "contractScope": null, "id": 12214, "name": "ERC721UpgradeSafe", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 12203, "src": "303:17:87", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721UpgradeSafe_$12203", "typeString": "contract ERC721UpgradeSafe" } }, "id": 12215, "nodeType": "InheritanceSpecifier", "src": "303:17:87" } ], "contractDependencies": [ 44, 1407, 2511, 2779, 12203, 12484, 12512, 12536 ], "contractKind": "contract", "documentation": { "id": 12209, "nodeType": "StructuredDocumentation", "src": "115:105:87", "text": "@title ERC721 Burnable Token\n@dev ERC721 Token that can be irreversibly burned (destroyed)." }, "fullyImplemented": true, "id": 12261, "linearizedBaseContracts": [ 12261, 12203, 12512, 12536, 12484, 2511, 2779, 44, 1407 ], "name": "ERC721BurnableUpgradeSafe", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 12229, "nodeType": "Block", "src": "381:121:87", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 12220, "name": "__Context_init_unchained", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19, "src": "391:24:87", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 12221, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "391:26:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12222, "nodeType": "ExpressionStatement", "src": "391:26:87" }, { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 12223, "name": "__ERC165_init_unchained", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2472, "src": "427:23:87", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 12224, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "427:25:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12225, "nodeType": "ExpressionStatement", "src": "427:25:87" }, { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 12226, "name": "__ERC721Burnable_init_unchained", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12236, "src": "462:31:87", "typeDescriptions": { 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"FunctionCall", "src": "848:12:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12246, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12239, "src": "862:7:87", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12243, "name": "_isApprovedOrOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11814, "src": "829:18:87", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) view returns (bool)" } }, "id": 12247, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "829:41:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433732314275726e61626c653a2063616c6c6572206973206e6f74206f776e6572206e6f7220617070726f766564", "id": 12248, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "872:50:87", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ee6b7e810d7b317242d4688e6943ff4dd7897bb01d903b1a666812481b12a4f1", "typeString": "literal_string \"ERC721Burnable: caller is not owner nor approved\"" }, "value": "ERC721Burnable: caller is not owner nor approved" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_ee6b7e810d7b317242d4688e6943ff4dd7897bb01d903b1a666812481b12a4f1", "typeString": "literal_string \"ERC721Burnable: caller is not owner nor approved\"" } ], "id": 12242, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "821:7:87", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12249, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "821:102:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12250, "nodeType": "ExpressionStatement", "src": "821:102:87" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12252, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12239, "src": "939:7:87", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12251, "name": "_burn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11985, "src": "933:5:87", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 12253, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "933:14:87", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12254, "nodeType": "ExpressionStatement", "src": "933:14:87" } ] }, "documentation": { "id": 12237, "nodeType": "StructuredDocumentation", "src": "587:121:87", "text": "@dev Burns a specific ERC721 token.\n@param tokenId uint256 id of the ERC721 token to be burned." }, "functionSelector": "42966c68", "id": 12256, "implemented": true, "kind": "function", "modifiers": [], "name": "burn", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12240, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12239, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12256, "src": "727:15:87", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12238, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "727:7:87", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "726:17:87" }, "returnParameters": { "id": 12241, "nodeType": "ParameterList", "parameters": [], "src": "759:0:87" }, "scope": 12261, "src": "713:241:87", "stateMutability": "nonpayable", "virtual": true, "visibility": "public" }, { "constant": false, "id": 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"uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 12262, "src": "221:767:87" } ], "src": "0:989:87" }, "bytecode": "0x", "deployedBytecode": "0x", "compiler": { "name": "solc", "version": "0.6.7+commit.b8d736ae.Emscripten.clang", "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "petersburg" } }