@marketprotocol/marketprotocol

{ "contractName": "Ownable", "abi": [ { "inputs": [], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "previousOwner", "type": "address" }, { "indexed": true, "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "isOwner", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "renounceOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "", "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity ^0.5.2;\n\n/**\n * @title Ownable\n * @dev The Ownable contract has an owner address, and provides basic authorization control\n * functions, this simplifies the implementation of \"user permissions\".\n */\ncontract Ownable {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev The Ownable constructor sets the original `owner` of the contract to the sender\n * account.\n */\n constructor () internal {\n _owner = msg.sender;\n emit OwnershipTransferred(address(0), _owner);\n }\n\n /**\n * @return the address of the owner.\n */\n function owner() public view returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(isOwner());\n _;\n }\n\n /**\n * @return true if `msg.sender` is the owner of the contract.\n */\n function isOwner() public view returns (bool) {\n return msg.sender == _owner;\n }\n\n /**\n * @dev Allows the current owner to relinquish control of the contract.\n * It will not be possible to call the functions with the `onlyOwner`\n * modifier anymore.\n * @notice Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n _owner = address(0);\n }\n\n /**\n * @dev Allows the current owner to transfer control of the contract to a newOwner.\n * @param newOwner The address to transfer ownership to.\n */\n function transferOwnership(address newOwner) public onlyOwner {\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers control of the contract to a newOwner.\n * @param newOwner The address to transfer ownership to.\n */\n function _transferOwnership(address newOwner) internal {\n require(newOwner != address(0));\n emit OwnershipTransferred(_owner, newOwner);\n _owner = newOwner;\n }\n}\n", "sourcePath": "openzeppelin-solidity/contracts/ownership/Ownable.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/ownership/Ownable.sol", "exportedSymbols": { "Ownable": [ 2454 ] }, "id": 2455, "nodeType": "SourceUnit", "nodes": [ { "id": 2347, "literals": [ "solidity", "^", "0.5", ".2" ], "nodeType": "PragmaDirective", "src": "0:23:17" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title Ownable\n@dev The Ownable contract has an owner address, and provides basic authorization control\nfunctions, this simplifies the implementation of \"user permissions\".", "fullyImplemented": true, "id": 2454, "linearizedBaseContracts": [ 2454 ], "name": "Ownable", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 2349, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 2454, "src": "238:22:17", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2348, "name": "address", "nodeType": "ElementaryTypeName", "src": "238:7:17", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "private" }, { "anonymous": false, "documentation": null, "id": 2355, "name": "OwnershipTransferred", "nodeType": "EventDefinition", "parameters": { "id": 2354, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2351, "indexed": true, "name": "previousOwner", "nodeType": "VariableDeclaration", "scope": 2355, "src": "294:29:17", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2350, "name": "address", "nodeType": "ElementaryTypeName", "src": "294:7:17", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2353, "indexed": true, "name": "newOwner", "nodeType": "VariableDeclaration", "scope": 2355, "src": "325:24:17", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2352, "name": "address", "nodeType": "ElementaryTypeName", "src": "325:7:17", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "293:57:17" }, "src": "267:84:17" }, { "body": { "id": 2370, "nodeType": "Block", "src": "505:91:17", "statements": [ { "expression": { "argumentTypes": null, "id": 2361, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 2358, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "515:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2359, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3186, "src": "524:3:17", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2360, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "524:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "515:19:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2362, "nodeType": "ExpressionStatement", "src": "515:19:17" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2365, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "578:1:17", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2364, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "570:7:17", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2366, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "570:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2367, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "582:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2363, "name": "OwnershipTransferred", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2355, "src": "549:20:17", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$returns$__$", "typeString": "function (address,address)" } }, "id": 2368, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "549:40:17", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2369, "nodeType": "EmitStatement", "src": "544:45:17" } ] }, "documentation": "@dev The Ownable constructor sets the original `owner` of the contract to the sender\naccount.", "id": 2371, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "parameters": { "id": 2356, "nodeType": "ParameterList", "parameters": [], "src": "493:2:17" }, "returnParameters": { "id": 2357, "nodeType": "ParameterList", "parameters": [], "src": "505:0:17" }, "scope": 2454, "src": "481:115:17", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2378, "nodeType": "Block", "src": "706:30:17", "statements": [ { "expression": { "argumentTypes": null, "id": 2376, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "723:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 2375, "id": 2377, "nodeType": "Return", "src": "716:13:17" } ] }, "documentation": "@return the address of the owner.", "id": 2379, "implemented": true, "kind": "function", "modifiers": [], "name": "owner", "nodeType": "FunctionDefinition", "parameters": { "id": 2372, "nodeType": "ParameterList", "parameters": [], "src": "673:2:17" }, "returnParameters": { "id": 2375, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2374, "name": "", "nodeType": "VariableDeclaration", "scope": 2379, "src": "697:7:17", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2373, "name": "address", "nodeType": "ElementaryTypeName", "src": "697:7:17", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "696:9:17" }, "scope": 2454, "src": "659:77:17", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 2387, "nodeType": "Block", "src": "845:46:17", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 2382, "name": "isOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2399, "src": "863:7:17", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_bool_$", "typeString": "function () view returns (bool)" } }, "id": 2383, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "863:9:17", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2381, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 3189, 3190 ], "referencedDeclaration": 3189, "src": "855:7:17", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2384, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "855:18:17", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2385, "nodeType": "ExpressionStatement", "src": "855:18:17" }, { "id": 2386, "nodeType": "PlaceholderStatement", "src": "883:1:17" } ] }, "documentation": "@dev Throws if called by any account other than the owner.", "id": 2388, "name": "onlyOwner", "nodeType": "ModifierDefinition", "parameters": { "id": 2380, "nodeType": "ParameterList", "parameters": [], "src": "842:2:17" }, "src": "824:67:17", "visibility": "internal" }, { "body": { "id": 2398, "nodeType": "Block", "src": "1025:44:17", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2396, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2393, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3186, "src": "1042:3:17", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2394, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1042:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2395, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "1056:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "1042:20:17", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2392, "id": 2397, "nodeType": "Return", "src": "1035:27:17" } ] }, "documentation": "@return true if `msg.sender` is the owner of the contract.", "id": 2399, "implemented": true, "kind": "function", "modifiers": [], "name": "isOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 2389, "nodeType": "ParameterList", "parameters": [], "src": "995:2:17" }, "returnParameters": { "id": 2392, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2391, "name": "", "nodeType": "VariableDeclaration", "scope": 2399, "src": "1019:4:17", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2390, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1019:4:17", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1018:6:17" }, "scope": 2454, "src": "979:90:17", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 2417, "nodeType": "Block", "src": "1469:91:17", "statements": [ { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2405, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "1505:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2407, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1521:1:17", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2406, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1513:7:17", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2408, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1513:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 2404, "name": "OwnershipTransferred", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2355, "src": "1484:20:17", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$returns$__$", "typeString": "function (address,address)" } }, "id": 2409, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1484:40:17", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2410, "nodeType": "EmitStatement", "src": "1479:45:17" }, { "expression": { "argumentTypes": null, "id": 2415, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 2411, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2349, "src": "1534:6:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2413, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1551:1:17", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2412, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1543:7:17", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2414, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1543:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "1534:19:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2416, "nodeType": "ExpressionStatement", "src": "1534:19:17" } ] }, "documentation": "@dev Allows the current owner to relinquish control of the contract.\nIt will not be possible to call the functions with the `onlyOwner`\nmodifier anymore.\n@notice Renouncing ownership will leave the contract without an owner,\nthereby removing any functionality that is only available to the owner.", "id": 2418, "implemented": true, "kind": "function", "modifiers": [ { "arguments": null, "id": 2402, "modifierName": { "argumentTypes": null, "id": 2401, "name": "onlyOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2388, "src": "1459:9:17", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1459:9:17" } ], "name": "renounceOwnership", "nodeType": "FunctionDefinition", "parameters": { "id": 2400, "nodeType": "ParameterList", "parameters": [], "src": "1449:2:17" }, "returnParameters": { "id": 2403, "nodeType": "ParameterList", "parameters": [], "src": "1469:0:17" }, "scope": 2454, "src": "1423:137:17", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 2429, "nodeType": "Block", "src": "1793:45:17", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2426, "name": "newOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2420, "src": "1822:8:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2425, "name": "_transferOwnership", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2453, "src": "1803:18:17", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$returns$__$", "typeString": "function (address)" } }, "id": 2427, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1803:28:17", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2428, "nodeType": "ExpressionStatement", "src": "1803:28:17" } ] }, "documentation": "@dev Allows the current owner to transfer control of the contract to a newOwner.\n@param newOwner The address to transfer ownership to.", "id": 2430, "implemented": true, "kind": "function", "modifiers": [ { "arguments": null, "id": 2423, "modifierName": { "argumentTypes": null, "id": 2422, "name": "onlyOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2388, "src": "1783:9:17", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1783:9:17" } ], "name": "transferOwnership", "nodeType": "FunctionDefinition", "parameters": { "id": 2421, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2420, "name": "newOwner", "nodeType": "VariableDeclaration", "scope": 2430, "src": "1758:16:17", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2419, "name": "address", "nodeType": "ElementaryTypeName", "src": "1758:7:17", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1757:18:17" }, "returnParameters": { "id": 2424, "nodeType": "ParameterList", "parameters": [], "src": "1793:0:17" }, "scope": 2454, "src": "1731:107:17", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 2452, "nodeType": "Block", "src": "2037:128:17", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2440, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2436, "name": "newOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2432, "src": "2055:8:17", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2438, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2075:1:17", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2437, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2067:7:17", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2439, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2067:10:17", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "2055:22:17", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 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