Contract

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

/**
 * A lightweight multisig wallet contract
 * Calls will be delegated to the wallet library contract
 * Owners can:
 * - Submit a transaction
 * - Approve and revoke approval of pending transactions
 * - Anyone can execute a transaction after enough owners approved it
 */
contract Wallet {
    address public walletLibrary;
    address[] public owners;
    mapping(address => bool) public isOwner;
    uint256 public numConfirmationsRequired;

    struct Transaction {
        address to;
        uint256 value;
        bytes data;
        bool executed;
        uint256 numConfirmations;
    }

    // mapping from tx index => owner => bool
    mapping(uint256 => mapping(address => bool)) public isConfirmed;

    Transaction[] public transactions;

    constructor(
        address _walletLibrary,
        address[] memory _owners,
        uint256 _numConfirmationsRequired
    ) {
        walletLibrary = _walletLibrary;

        (bool success, ) = _walletLibrary.delegatecall(
            abi.encodeWithSignature(
                "initWallet(address[],uint256)",
                _owners,
                _numConfirmationsRequired
            )
        );

        require(success, "initWallet failed");
    }

    receive() external payable {}

    fallback() external payable {
        _delegate(walletLibrary);
    }

    function _delegate(address _imp) internal virtual {
        assembly {
            // calldatacopy(t, f, s)
            // copy s bytes from calldata at position f to mem at position t
            calldatacopy(0, 0, calldatasize())

            // delegatecall(g, a, in, insize, out, outsize)
            // - call contract at address a
            // - with input mem[in…(in+insize))
            // - providing g gas
            // - and output area mem[out…(out+outsize))
            // - returning 0 on error and 1 on success
            let result := delegatecall(gas(), _imp, 0, calldatasize(), 0, 0)

            // returndatacopy(t, f, s)
            // copy s bytes from returndata at position f to mem at position t
            returndatacopy(0, 0, returndatasize())

            switch result
            case 0 {
                // revert(p, s)
                // end execution, revert state changes, return data mem[p…(p+s))
                revert(0, returndatasize())
            }
            default {
                // return(p, s)
                // end execution, return data mem[p…(p+s))
                return(0, returndatasize())
            }
        }
    }
}

{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "script/=script/",
    "src/=src/",
    "test/=test/",
    "src/=src/",
    "test/=test/",
    "script/=script/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"_walletLibrary","type":"address"},{"internalType":"address[]","name":"_owners","type":"address[]"},{"internalType":"uint256","name":"_numConfirmationsRequired","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"isConfirmed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"numConfirmationsRequired","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"owners","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"transactions","outputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bool","name":"executed","type":"bool"},{"internalType":"uint256","name":"numConfirmations","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"walletLibrary","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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00000000000000000000000043ff315d0003365fe1246344115a3142b9ebfe0b00000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000300000000000000000000000089d8632bc8020a7ddd540e6d9b118aa9ec19af270000000000000000000000008a5722860c6691f2a25d141d73e678bf1078aac30000000000000000000000006813eb9362372eef6200f3b1dbc3f819671cba69

-----Decoded View---------------
Arg [0] : _walletLibrary (address): 0x43FF315d0003365fe1246344115A3142b9EBfe0b
Arg [1] : _owners (address[]): 0x89d8632bc8020a7ddd540E6D9B118Aa9EC19af27,0x8a5722860c6691F2a25d141D73e678bF1078aac3,0x6813Eb9362372EEF6200f3b1dbC3f819671cBA69
Arg [2] : _numConfirmationsRequired (uint256): 2

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 00000000000000000000000043ff315d0003365fe1246344115a3142b9ebfe0b
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [4] : 00000000000000000000000089d8632bc8020a7ddd540e6d9b118aa9ec19af27
Arg [5] : 0000000000000000000000008a5722860c6691f2a25d141d73e678bf1078aac3
Arg [6] : 0000000000000000000000006813eb9362372eef6200f3b1dbc3f819671cba69