{ "contractName": "Address", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{},\"notice\":\"Utility library of inline functions on addresses\"}},\"settings\":{\"compilationTarget\":{\"openzeppelin-solidity/contracts/utils/Address.sol\":\"Address\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"openzeppelin-solidity/contracts/utils/Address.sol\":{\"keccak256\":\"0x5c731061b804fa256fc8c05150eafe5d20b6bb94541a8f187912bf84f7033f34\",\"urls\":[\"bzz-raw://a3c2d9f046beebab7fb41b1b124a6a124a36f510f7c67365861402ac831bdc71\",\"dweb:/ipfs/QmUtASRgitregbKH83anopLtF9vFQe3BKeAjhUa6F7t9YV\"]}},\"version\":1}", "bytecode": 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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": "openzeppelin-solidity/contracts/utils/Address.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 22156 ] }, "id": 22157, "nodeType": "SourceUnit", "nodes": [ { "id": 22139, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": 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"updatedAt": "2021-08-23T07:33:52.708Z", "devdoc": { "methods": {} }, "userdoc": { "methods": {}, "notice": "Utility library of inline functions on addresses" } }