- Contract name:
- Multicall
- Optimization enabled
- false
- Compiler version
- v0.8.0+commit.c7dfd78e
- EVM Version
- default
- Verified at
- 2022-01-18 02:35:11.565875Z
Contract source code
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title Multicall - Aggregate results from multiple read-only function calls
/// @author Michael Elliot <mike@makerdao.com>
/// @author Joshua Levine <joshua@makerdao.com>
/// @author Nick Johnson <arachnid@notdot.net>
contract Multicall {
struct Call {
address target;
bytes callData;
}
function aggregate(Call[] memory calls) public returns (uint256 blockNumber, bytes[] memory returnData) {
blockNumber = block.number;
returnData = new bytes[](calls.length);
for(uint256 i = 0; i < calls.length; i++) {
(bool success, bytes memory ret) = calls[i].target.call(calls[i].callData);
require(success);
returnData[i] = ret;
}
}
// Helper functions
function getEthBalance(address addr) public view returns (uint256 balance) {
balance = addr.balance;
}
function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) {
blockHash = blockhash(blockNumber);
}
function getLastBlockHash() public view returns (bytes32 blockHash) {
blockHash = blockhash(block.number - 1);
}
function getCurrentBlockTimestamp() public view returns (uint256 timestamp) {
timestamp = block.timestamp;
}
function getCurrentBlockDifficulty() public view returns (uint256 difficulty) {
difficulty = block.difficulty;
}
function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) {
gaslimit = block.gaslimit;
}
function getCurrentBlockCoinbase() public view returns (address coinbase) {
coinbase = block.coinbase;
}
}Contract ABI
[{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"blockNumber","internalType":"uint256"},{"type":"bytes[]","name":"returnData","internalType":"bytes[]"}],"name":"aggregate","inputs":[{"type":"tuple[]","name":"calls","internalType":"struct Multicall.Call[]","components":[{"type":"address","name":"target","internalType":"address"},{"type":"bytes","name":"callData","internalType":"bytes"}]}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"blockHash","internalType":"bytes32"}],"name":"getBlockHash","inputs":[{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"coinbase","internalType":"address"}],"name":"getCurrentBlockCoinbase","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"difficulty","internalType":"uint256"}],"name":"getCurrentBlockDifficulty","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"gaslimit","internalType":"uint256"}],"name":"getCurrentBlockGasLimit","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"timestamp","internalType":"uint256"}],"name":"getCurrentBlockTimestamp","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"balance","internalType":"uint256"}],"name":"getEthBalance","inputs":[{"type":"address","name":"addr","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"blockHash","internalType":"bytes32"}],"name":"getLastBlockHash","inputs":[]}]
Deployed ByteCode
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