Contract Source Code (Solidity Standard Json-Input format)

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// Copyright (c) OmniBTC, Inc.
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

contract Multicall {
    struct Call {
        address target;
        uint256 value;
        bytes callData;
    }
    struct Result {
        bool success;
        bytes returnData;
    }

    function aggregate(Call[] memory calls)
        public
        payable
        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{
                value: calls[i].value
            }(calls[i].callData);
            require(success, "Multicall aggregate: call failed");
            returnData[i] = ret;
        }
    }

    function blockAndAggregate(Call[] memory calls)
        public
        payable
        returns (
            uint256 blockNumber,
            bytes32 blockHash,
            Result[] memory returnData
        )
    {
        (blockNumber, blockHash, returnData) = tryBlockAndAggregate(
            true,
            calls
        );
    }

    function getBlockHash(uint256 blockNumber)
        public
        view
        returns (bytes32 blockHash)
    {
        blockHash = blockhash(blockNumber);
    }

    function getBlockNumber() public view returns (uint256 blockNumber) {
        blockNumber = block.number;
    }

    function getCurrentBlockCoinbase() public view returns (address coinbase) {
        coinbase = block.coinbase;
    }

    function getCurrentBlockDifficulty()
        public
        view
        returns (uint256 difficulty)
    {
        difficulty = block.difficulty;
    }

    function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) {
        gaslimit = block.gaslimit;
    }

    function getCurrentBlockTimestamp()
        public
        view
        returns (uint256 timestamp)
    {
        timestamp = block.timestamp;
    }

    function getEthBalance(address addr) public view returns (uint256 balance) {
        balance = addr.balance;
    }

    function getLastBlockHash() public view returns (bytes32 blockHash) {
        blockHash = blockhash(block.number - 1);
    }

    function tryAggregate(bool requireSuccess, Call[] memory calls)
        public
        payable
        returns (Result[] memory returnData)
    {
        returnData = new Result[](calls.length);
        for (uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory ret) = calls[i].target.call{
                value: calls[i].value
            }(calls[i].callData);

            if (requireSuccess) {
                require(success, "Multicall2 aggregate: call failed");
            }

            returnData[i] = Result(success, ret);
        }
    }

    function tryBlockAndAggregate(bool requireSuccess, Call[] memory calls)
        public
        payable
        returns (
            uint256 blockNumber,
            bytes32 blockHash,
            Result[] memory returnData
        )
    {
        blockNumber = block.number;
        blockHash = blockhash(block.number);
        returnData = tryAggregate(requireSuccess, calls);
    }
}

{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "libraries": {
    "Multicall.sol": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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[{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"aggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes[]","name":"returnData","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"blockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBlockNumber","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockCoinbase","outputs":[{"internalType":"address","name":"coinbase","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockDifficulty","outputs":[{"internalType":"uint256","name":"difficulty","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockGasLimit","outputs":[{"internalType":"uint256","name":"gaslimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockTimestamp","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getEthBalance","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLastBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"tryAggregate","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"tryBlockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"}]

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