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@alice-network/zos-lib

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JavaScript library for the ZeppelinOS smart contract platform

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{ "contractName": "AddressUtils", "abi": [], "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f30073000000000000000000000000000000000000000030146080604052600080fd00a165627a7a72305820529e5325d2ee8ea89d689631535ae827cae58edd1709562e8c269861ad7277060029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fd00a165627a7a72305820529e5325d2ee8ea89d689631535ae827cae58edd1709562e8c269861ad7277060029", "sourceMap": "87:930:28:-;;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": "87:930:28:-;;;;;;;;", "source": "pragma solidity ^0.4.23;\n\n\n/**\n * Utility library of inline functions on addresses\n */\nlibrary AddressUtils {\n\n /**\n * Returns whether the target address is a contract\n * @dev This function will return false if invoked during the constructor of a contract,\n * as the code is not actually created until after the constructor finishes.\n * @param addr address to check\n * @return whether the target address is a contract\n */\n function isContract(address addr) internal view returns (bool) {\n uint256 size;\n // XXX Currently there is no better way to check if there is a contract in an address\n // than to check the size of the code at that address.\n // See https://ethereum.stackexchange.com/a/14016/36603\n // for more details about how this works.\n // TODO Check this again before the Serenity release, because all addresses will be\n // contracts then.\n // solium-disable-next-line security/no-inline-assembly\n assembly { size := extcodesize(addr) }\n return size > 0;\n }\n\n}\n", "sourcePath": "openzeppelin-solidity/contracts/AddressUtils.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/AddressUtils.sol", "exportedSymbols": { "AddressUtils": [ 3056 ] }, "id": 3057, "nodeType": "SourceUnit", "nodes": [ { "id": 3039, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:28" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "Utility library of inline functions on addresses", "fullyImplemented": true, "id": 3056, "linearizedBaseContracts": [ 3056 ], "name": "AddressUtils", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 3054, "nodeType": "Block", "src": "501:513:28", "statements": [ { "assignments": [], "declarations": [ { "constant": false, "id": 3047, "name": "size", "nodeType": "VariableDeclaration", "scope": 3055, "src": "507:12:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3046, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "507:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3048, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "507:12:28" }, { "externalReferences": [ { "size": { "declaration": 3047, "isOffset": false, "isSlot": false, "src": "962:4:28", "valueSize": 1 } }, { "addr": { "declaration": 3041, "isOffset": false, "isSlot": false, "src": "982:4:28", "valueSize": 1 } } ], "id": 3049, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(addr)\n}", "src": "951:49:28" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3052, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3050, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3047, "src": "1001:4:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 3051, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1008:1:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1001:8:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 3045, "id": 3053, "nodeType": "Return", "src": "994:15:28" } ] }, "documentation": "Returns whether the target address is a contract\n@dev This function will return false if invoked during the constructor of a contract,\n as the code is not actually created until after the constructor finishes.\n@param addr address to check\n@return whether the target address is a contract", "id": 3055, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 3042, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3041, "name": "addr", "nodeType": "VariableDeclaration", "scope": 3055, "src": "458:12:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3040, "name": "address", "nodeType": "ElementaryTypeName", "src": "458:7:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "457:14:28" }, "payable": false, "returnParameters": { "id": 3045, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3044, "name": "", "nodeType": "VariableDeclaration", "scope": 3055, "src": "495:4:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3043, "name": "bool", "nodeType": "ElementaryTypeName", "src": "495:4:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "494:6:28" }, "scope": 3056, "src": "438:576:28", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 3057, "src": "87:930:28" } ], "src": "0:1018:28" }, "legacyAST": { "absolutePath": "openzeppelin-solidity/contracts/AddressUtils.sol", "exportedSymbols": { "AddressUtils": [ 3056 ] }, "id": 3057, "nodeType": "SourceUnit", "nodes": [ { "id": 3039, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:28" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "Utility library of inline functions on addresses", "fullyImplemented": true, "id": 3056, "linearizedBaseContracts": [ 3056 ], "name": "AddressUtils", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 3054, "nodeType": "Block", "src": "501:513:28", "statements": [ { "assignments": [], "declarations": [ { "constant": false, "id": 3047, "name": "size", "nodeType": "VariableDeclaration", "scope": 3055, "src": "507:12:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3046, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "507:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3048, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "507:12:28" }, { "externalReferences": [ { "size": { "declaration": 3047, "isOffset": false, "isSlot": false, "src": "962:4:28", "valueSize": 1 } }, { "addr": { "declaration": 3041, "isOffset": false, "isSlot": false, "src": "982:4:28", "valueSize": 1 } } ], "id": 3049, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(addr)\n}", "src": "951:49:28" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3052, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3050, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3047, "src": "1001:4:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 3051, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1008:1:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1001:8:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 3045, "id": 3053, "nodeType": "Return", "src": "994:15:28" } ] }, "documentation": "Returns whether the target address is a contract\n@dev This function will return false if invoked during the constructor of a contract,\n as the code is not actually created until after the constructor finishes.\n@param addr address to check\n@return whether the target address is a contract", "id": 3055, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 3042, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3041, "name": "addr", "nodeType": "VariableDeclaration", "scope": 3055, "src": "458:12:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3040, "name": "address", "nodeType": "ElementaryTypeName", "src": "458:7:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "457:14:28" }, "payable": false, "returnParameters": { "id": 3045, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3044, "name": "", "nodeType": "VariableDeclaration", "scope": 3055, "src": "495:4:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3043, "name": "bool", "nodeType": "ElementaryTypeName", "src": "495:4:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "494:6:28" }, "scope": 3056, "src": "438:576:28", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 3057, "src": "87:930:28" } ], "src": "0:1018:28" }, "compiler": { "name": "solc", "version": "0.4.24+commit.e67f0147.Emscripten.clang" }, "networks": {}, "schemaVersion": "2.0.1", "updatedAt": "2019-02-15T10:15:15.425Z" }