{ "contractName": "AddressUtils", "abi": [], "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f30073000000000000000000000000000000000000000030146080604052600080fd00a165627a7a7230582095dfa01de7922905bfe4b8f973eac243008f547d33e6bf53a4b2500794b9538b0029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fd00a165627a7a7230582095dfa01de7922905bfe4b8f973eac243008f547d33e6bf53a4b2500794b9538b0029", "sourceMap": "87:930:27:-;;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": "87:930:27:-;;;;;;;;", "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": [ 4127 ] }, "id": 4128, "nodeType": "SourceUnit", "nodes": [ { "id": 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