{ "contractName": "Address", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.0+commit.1d4f565a\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"details\":\"Collection of functions related to the address type,\",\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/utils/Address.sol\":\"Address\"},\"evmVersion\":\"constantinople\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0xf3358e5819ca73357abd6c90bdfffd0474af54364897f6b3e3234c4b71fbe9a1\",\"urls\":[\"bzzr://f7f6da60a184233fd666ac44e6fb2bd51ca6ebdc4867a310d368049aa4e62786\"]}},\"version\":1}", "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a7230582031a737ef87a615326cc7f8f843fdee33812057eb4926be0494af7daa87e88a150029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a7230582031a737ef87a615326cc7f8f843fdee33812057eb4926be0494af7daa87e88a150029", "sourceMap": "94:863:16:-;;132:2:-1;166:7;155:9;146:7;137:37;252:7;246:14;243:1;238:23;232:4;229:33;270:1;265:20;;;;222:63;;265:20;274:9;222:63;;298:9;295:1;288:20;328:4;319:7;311:22;352:7;343;336:24", "deployedSourceMap": "94:863:16:-;;;;;;;;", "source": "pragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n", "sourcePath": "@openzeppelin/contracts/utils/Address.sol", "ast": { "absolutePath": "@openzeppelin/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 2979 ] }, "id": 2980, "nodeType": "SourceUnit", "nodes": [ { "id": 2962, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:16" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@dev Collection of functions related to the address type,", "fullyImplemented": true, "id": 2979, "linearizedBaseContracts": [ 2979 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2977, "nodeType": "Block", "src": "608:347:16", "statements": [ { "assignments": [ 2970 ], "declarations": [ { "constant": false, "id": 2970, "name": "size", "nodeType": "VariableDeclaration", "scope": 2977, "src": "805:12:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2969, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "805:7:16", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2971, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "805:12:16" }, { "externalReferences": [ { "size": { "declaration": 2970, "isOffset": false, "isSlot": false, "src": "894:4:16", "valueSize": 1 } }, { "account": { "declaration": 2964, "isOffset": false, "isSlot": false, "src": "914:7:16", "valueSize": 1 } } ], "id": 2972, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(account)\n}", "src": "883:56:16" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2975, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2973, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2970, "src": "940:4:16", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2974, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "947:1:16", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "940:8:16", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2968, "id": 2976, "nodeType": "Return", "src": "933:15:16" } ] }, "documentation": "@dev Returns true if `account` is a contract.\n * This test is non-exhaustive, and there may be false-negatives: during the\nexecution of a contract's constructor, its address will be reported as\nnot containing a contract.\n * > It is unsafe to assume that an address for which this function returns\nfalse is an externally-owned account (EOA) and not a contract.", "id": 2978, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 2965, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2964, "name": "account", "nodeType": "VariableDeclaration", "scope": 2978, "src": "562:15:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2963, "name": "address", "nodeType": "ElementaryTypeName", "src": "562:7:16", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "561:17:16" }, "returnParameters": { "id": 2968, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2967, "name": "", "nodeType": "VariableDeclaration", "scope": 2978, "src": "602:4:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2966, "name": "bool", "nodeType": "ElementaryTypeName", "src": "602:4:16", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "601:6:16" }, "scope": 2979, "src": "542:413:16", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 2980, "src": "94:863:16" } ], "src": "0:958:16" }, "legacyAST": { "absolutePath": "@openzeppelin/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 2979 ] }, "id": 2980, "nodeType": "SourceUnit", "nodes": [ { "id": 2962, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:16" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@dev Collection of functions related to the address type,", "fullyImplemented": true, "id": 2979, "linearizedBaseContracts": [ 2979 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2977, "nodeType": "Block", "src": "608:347:16", "statements": [ { "assignments": [ 2970 ], "declarations": [ { "constant": false, "id": 2970, "name": "size", "nodeType": "VariableDeclaration", "scope": 2977, "src": "805:12:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2969, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "805:7:16", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2971, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "805:12:16" }, { "externalReferences": [ { "size": { "declaration": 2970, "isOffset": false, "isSlot": false, "src": "894:4:16", "valueSize": 1 } }, { "account": { "declaration": 2964, "isOffset": false, "isSlot": false, "src": "914:7:16", "valueSize": 1 } } ], "id": 2972, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(account)\n}", "src": "883:56:16" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2975, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2973, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2970, "src": "940:4:16", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2974, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "947:1:16", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "940:8:16", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2968, "id": 2976, "nodeType": "Return", "src": "933:15:16" } ] }, "documentation": "@dev Returns true if `account` is a contract.\n * This test is non-exhaustive, and there may be false-negatives: during the\nexecution of a contract's constructor, its address will be reported as\nnot containing a contract.\n * > It is unsafe to assume that an address for which this function returns\nfalse is an externally-owned account (EOA) and not a contract.", "id": 2978, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 2965, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2964, "name": "account", "nodeType": "VariableDeclaration", "scope": 2978, "src": "562:15:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2963, "name": "address", "nodeType": "ElementaryTypeName", "src": "562:7:16", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "561:17:16" }, "returnParameters": { "id": 2968, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2967, "name": "", "nodeType": "VariableDeclaration", "scope": 2978, "src": "602:4:16", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2966, "name": "bool", "nodeType": "ElementaryTypeName", "src": "602:4:16", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "601:6:16" }, "scope": 2979, "src": "542:413:16", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 2980, "src": "94:863:16" } ], "src": "0:958:16" }, "compiler": { "name": "solc", "version": "0.5.0+commit.1d4f565a.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.19", "updatedAt": "2020-04-08T07:30:09.384Z", "devdoc": { "details": "Collection of functions related to the address type,", "methods": {} }, "userdoc": { "methods": {} } }