Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: GPL-3.0

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// ╚═╝     ╚═╝╚═╝  ╚═╝╚═╝  ╚═╝╚═╝  ╚═╝

// Website: https://maha.xyz
// Discord: https://discord.gg/mahadao
// Twitter: https://twitter.com/mahaxyz_

pragma solidity 0.8.21;

import {IERC20} from "@openzeppelin/contracts/interfaces/IERC20.sol";

contract UsdzMigrator {
  IERC20 public old;
  IERC20 public zai;

  constructor(address _old, address _zai) {
    old = IERC20(_old);
    zai = IERC20(_zai);
  }

  function migrate(uint256 amount) external {
    require(old.transferFrom(msg.sender, address(this), amount), "Transfer failed");
    require(zai.transfer(msg.sender, amount), "Transfer failed");
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_old","type":"address"},{"internalType":"address","name":"_zai","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"migrate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"old","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"zai","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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0x608060405234801561001057600080fd5b50600436106100415760003560e01c806307140b3414610046578063454b060814610075578063b83f86631461008a575b600080fd5b600154610059906001600160a01b031681565b6040516001600160a01b03909116815260200160405180910390f35b6100886100833660046101d1565b61009d565b005b600054610059906001600160a01b031681565b6000546040516323b872dd60e01b8152336004820152306024820152604481018390526001600160a01b03909116906323b872dd906064016020604051808303816000875af11580156100f4573d6000803e3d6000fd5b505050506040513d601f19601f8201168201806040525081019061011891906101ea565b61013d5760405162461bcd60e51b815260040161013490610213565b60405180910390fd5b60015460405163a9059cbb60e01b8152336004820152602481018390526001600160a01b039091169063a9059cbb906044016020604051808303816000875af115801561018e573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906101b291906101ea565b6101ce5760405162461bcd60e51b815260040161013490610213565b50565b6000602082840312156101e357600080fd5b5035919050565b6000602082840312156101fc57600080fd5b8151801515811461020c57600080fd5b9392505050565b6020808252600f908201526e151c985b9cd9995c8819985a5b1959608a1b60408201526060019056fea264697066735822122070a07e593ef53a377f241e940d9a84bed7099b3b377cf88aa1319f0300d892fd64736f6c63430008150033

00000000000000000000000069000405f9dce69bd4cbf4f2865b79144a69bfe000000000000000000000000069000dfd5025e82f48eb28325a2b88a241182ced

-----Decoded View---------------
Arg [0] : _old (address): 0x69000405f9DcE69BD4Cbf4f2865b79144A69BFE0
Arg [1] : _zai (address): 0x69000dFD5025E82f48Eb28325A2B88a241182CEd

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000069000405f9dce69bd4cbf4f2865b79144a69bfe0
Arg [1] : 00000000000000000000000069000dfd5025e82f48eb28325a2b88a241182ced