{ "fileName": "Address.sol", "contractName": "OpenZeppelinUpgradesAddress", "source": "pragma solidity ^0.5.0;\n\n/**\n * Utility library of inline functions on addresses\n *\n * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol\n * This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts\n * when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the\n * build/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.\n */\nlibrary OpenZeppelinUpgradesAddress {\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 account address of the account to check\n * @return whether the target address is a contract\n */\n function isContract(address account) 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 // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n", "sourcePath": "contracts/utils/Address.sol", "sourceMap": "526:1016:43:-;;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": "526:1016:43:-;;;;;;;;", "abi": [], "ast": { "absolutePath": "contracts/utils/Address.sol", "exportedSymbols": { "OpenZeppelinUpgradesAddress": [ 6389 ] }, "id": 6390, "nodeType": "SourceUnit", "nodes": [ { "id": 6372, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:43" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "Utility library of inline functions on addresses\n * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol\nThis contract is copied here and renamed from the original to avoid clashes in the compiled artifacts\nwhen the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the\nbuild/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.", "fullyImplemented": true, "id": 6389, "linearizedBaseContracts": [ 6389 ], "name": "OpenZeppelinUpgradesAddress", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 6387, "nodeType": "Block", "src": "990:550:43", "statements": [ { "assignments": [ 6380 ], "declarations": [ { "constant": false, "id": 6380, "name": "size", "nodeType": "VariableDeclaration", "scope": 6387, "src": "1000:12:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6379, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1000:7:43", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6381, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "1000:12:43" }, { "externalReferences": [ { "size": { "declaration": 6380, "isOffset": false, "isSlot": false, "src": "1479:4:43", "valueSize": 1 } }, { "account": { "declaration": 6374, "isOffset": false, "isSlot": false, "src": "1499:7:43", "valueSize": 1 } } ], "id": 6382, "nodeType": "InlineAssembly", "operations": "{\n size := extcodesize(account)\n}", "src": "1468:56:43" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 6385, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 6383, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6380, "src": "1525:4:43", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 6384, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1532:1:43", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1525:8:43", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 6378, "id": 6386, "nodeType": "Return", "src": "1518:15:43" } ] }, "documentation": "Returns whether the target address is a contract\n@dev This function will return false if invoked during the constructor of a contract,\nas the code is not actually created until after the constructor finishes.\n@param account address of the account to check\n@return whether the target address is a contract", "id": 6388, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 6375, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6374, "name": "account", "nodeType": "VariableDeclaration", "scope": 6388, "src": "944:15:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6373, "name": "address", "nodeType": "ElementaryTypeName", "src": "944:7:43", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "943:17:43" }, "returnParameters": { "id": 6378, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6377, "name": "", "nodeType": "VariableDeclaration", "scope": 6388, "src": "984:4:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6376, "name": "bool", "nodeType": "ElementaryTypeName", "src": "984:4:43", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "983:6:43" }, "scope": 6389, "src": "924:616:43", "stateMutability": "view", "superFunction": null, "visibility": "internal" } ], "scope": 6390, "src": "526:1016:43" } ], "src": "0:1543:43" }, "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a723058206a10dd15519b5e7fd863e7094f2f7639b9c87cef0a8e1b6de95aaac8ea2874400029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a723058206a10dd15519b5e7fd863e7094f2f7639b9c87cef0a8e1b6de95aaac8ea2874400029", "compiler": { "name": "solc", "version": "0.5.3+commit.10d17f24.Emscripten.clang", "optimizer": {}, "evmVersion": "constantinople" } }