{ "fileName": "Address.sol", "contractName": "OpenZeppelinUpgradesAddress", "source": "pragma solidity ^0.6.0;\n// SPDX-License-Identifier: MIT\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": "558:1016:43:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "558:1016:43:-:0;;;;;;;;;;;;;;", "abi": [], "ast": { "absolutePath": "contracts/utils/Address.sol", "exportedSymbols": { "OpenZeppelinUpgradesAddress": [ 6774 ] }, "id": 6775, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 6755, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:43" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 6756, "nodeType": "StructuredDocumentation", "src": "57:500:43", "text": " Utility library of inline functions on addresses\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." }, "fullyImplemented": true, "id": 6774, "linearizedBaseContracts": [ 6774 ], "name": "OpenZeppelinUpgradesAddress", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 6772, "nodeType": "Block", "src": "1022:550:43", "statements": [ { "assignments": [ 6765 ], "declarations": [ { "constant": false, "id": 6765, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "overrides": null, "scope": 6772, "src": "1032:12:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6764, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1032:7:43", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6766, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "1032:12:43" }, { "AST": { "nodeType": "YulBlock", "src": "1509:32:43", "statements": [ { "nodeType": "YulAssignment", "src": "1511:28:43", "value": { "arguments": [ { "name": "account", "nodeType": "YulIdentifier", "src": "1531:7:43" } ], "functionName": { "name": "extcodesize", "nodeType": "YulIdentifier", "src": "1519:11:43" }, "nodeType": "YulFunctionCall", "src": "1519:20:43" }, "variableNames": [ { "name": "size", "nodeType": "YulIdentifier", "src": "1511:4:43" } ] } ] }, "evmVersion": "constantinople", "externalReferences": [ { "declaration": 6759, "isOffset": false, "isSlot": false, "src": "1531:7:43", "valueSize": 1 }, { "declaration": 6765, "isOffset": false, "isSlot": false, "src": "1511:4:43", "valueSize": 1 } ], "id": 6767, "nodeType": "InlineAssembly", "src": "1500:41:43" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 6770, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 6768, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6765, "src": "1557:4:43", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 6769, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1564:1:43", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1557:8:43", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 6763, "id": 6771, "nodeType": "Return", "src": "1550:15:43" } ] }, "documentation": { "id": 6757, "nodeType": "StructuredDocumentation", "src": "600:351:43", "text": " 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" }, "id": 6773, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 6760, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6759, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "overrides": null, "scope": 6773, "src": "976:15:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6758, "name": "address", "nodeType": "ElementaryTypeName", "src": "976:7:43", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "975:17:43" }, "returnParameters": { "id": 6763, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6762, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 6773, "src": "1016:4:43", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6761, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1016:4:43", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1015:6:43" }, "scope": 6774, "src": "956:616:43", "stateMutability": "view", "virtual": false, "visibility": "internal" } ], "scope": 6775, "src": "558:1016:43" } ], "src": "0:1575:43" }, "bytecode": "0x605f6026600b82828239805160001a6073141515601857fe5b30600052607381538281f350fe73000000000000000000000000000000000000000030146080604052600436106023575b60006000fdfea2646970667358221220cdbe161eb88ede039c8433d00dacb2d5c20579ec73e76189c13bc5afa82c761564736f6c634300060a0033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600436106023575b60006000fdfea2646970667358221220cdbe161eb88ede039c8433d00dacb2d5c20579ec73e76189c13bc5afa82c761564736f6c634300060a0033", "compiler": { "name": "solc", "version": "0.6.10+commit.00c0fcaf.Emscripten.clang", "optimizer": {}, "evmVersion": "constantinople" } }