{ "contractName": "Address", "abi": [], "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a723058202065566219d0f4bc609a1a827e9809ca2cf9fbae81d166b8ba8833a1d5534e0d0029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a723058202065566219d0f4bc609a1a827e9809ca2cf9fbae81d166b8ba8833a1d5534e0d0029", "sourceMap": "94:863:12:-;;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": "94:863:12:-;;;;;;;;", "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-solidity/contracts/utils/Address.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 2780 ] }, "id": 2781, "nodeType": "SourceUnit", "nodes": [ { "id": 2763, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:12" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@dev Collection of functions related to the address type,", "fullyImplemented": true, "id": 2780, "linearizedBaseContracts": [ 2780 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2778, "nodeType": "Block", "src": "608:347:12", "statements": [ { "assignments": [ 2771 ], "declarations": [ { "constant": false, "id": 2771, "name": "size", "nodeType": "VariableDeclaration", "scope": 2778, "src": "805:12:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2770, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "805:7:12", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2772, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "805:12:12" }, { "externalReferences": [ { "size": { "declaration": 2771, "isOffset": false, "isSlot": false, "src": "894:4:12", "valueSize": 1 } }, { "account": { "declaration": 2765, "isOffset": false, "isSlot": false, "src": "914:7:12", "valueSize": 1 } } ], "id": 2773, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(account)\n}", "src": "883:56:12" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2776, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2774, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2771, "src": "940:4:12", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2775, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "947:1:12", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "940:8:12", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2769, "id": 2777, "nodeType": "Return", "src": "933:15:12" } ] }, "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": 2779, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 2766, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2765, "name": "account", "nodeType": "VariableDeclaration", "scope": 2779, "src": "562:15:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2764, "name": "address", "nodeType": "ElementaryTypeName", "src": "562:7:12", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "561:17:12" }, "returnParameters": { "id": 2769, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2768, "name": "", "nodeType": "VariableDeclaration", "scope": 2779, "src": "602:4:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2767, "name": "bool", "nodeType": "ElementaryTypeName", "src": "602:4:12", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "601:6:12" }, "scope": 2780, "src": "542:413:12", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 2781, "src": "94:863:12" } ], "src": "0:958:12" }, "legacyAST": { "absolutePath": "openzeppelin-solidity/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 2780 ] }, "id": 2781, "nodeType": "SourceUnit", "nodes": [ { "id": 2763, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:12" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@dev Collection of functions related to the address type,", "fullyImplemented": true, "id": 2780, "linearizedBaseContracts": [ 2780 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2778, "nodeType": "Block", "src": "608:347:12", "statements": [ { "assignments": [ 2771 ], "declarations": [ { "constant": false, "id": 2771, "name": "size", "nodeType": "VariableDeclaration", "scope": 2778, "src": "805:12:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2770, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "805:7:12", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2772, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "805:12:12" }, { "externalReferences": [ { "size": { "declaration": 2771, "isOffset": false, "isSlot": false, "src": "894:4:12", "valueSize": 1 } }, { "account": { "declaration": 2765, "isOffset": false, "isSlot": false, "src": "914:7:12", "valueSize": 1 } } ], "id": 2773, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(account)\n}", "src": "883:56:12" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2776, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2774, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2771, "src": "940:4:12", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2775, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "947:1:12", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "940:8:12", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2769, "id": 2777, "nodeType": "Return", "src": "933:15:12" } ] }, "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": 2779, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 2766, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2765, "name": "account", "nodeType": "VariableDeclaration", "scope": 2779, "src": "562:15:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2764, "name": "address", "nodeType": "ElementaryTypeName", "src": "562:7:12", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "561:17:12" }, "returnParameters": { "id": 2769, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2768, "name": "", "nodeType": "VariableDeclaration", "scope": 2779, "src": "602:4:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2767, "name": "bool", "nodeType": "ElementaryTypeName", "src": "602:4:12", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "601:6:12" }, "scope": 2780, "src": "542:413:12", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 2781, "src": "94:863:12" } ], "src": "0:958:12" }, "compiler": { "name": "solc", "version": "0.5.1+commit.c8a2cb62.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.3", "updatedAt": "2019-06-08T17:32:19.232Z", "devdoc": { "details": "Collection of functions related to the address type,", "methods": {} }, "userdoc": { "methods": {} } }