Contract 0x046605839c01C54921f4aA1AAa245E88227707D8 2

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;
pragma abicoder v1;

import "../interfaces/IWrapper.sol";


contract BaseCoinWrapper is IWrapper {
    IERC20 private constant _BASE = IERC20(0x0000000000000000000000000000000000000000);
    IERC20 private immutable _wBase;

    constructor(IERC20 wBase) {
        _wBase = wBase;
    }

    function wrap(IERC20 token) external view override returns (IERC20 wrappedToken, uint256 rate) {
        if(token == _BASE) {
            return (_wBase, 1e18);
        } else if (token == _wBase) {
            return (_BASE, 1e18);
        } else {
            revert("Unsupported token");
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;
pragma abicoder v1;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";


interface IWrapper {
    function wrap(IERC20 token) external view returns (IERC20 wrappedToken, uint256 rate);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

    /**
     * @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);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"contract IERC20","name":"wBase","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"wrap","outputs":[{"internalType":"contract IERC20","name":"wrappedToken","type":"address"},{"internalType":"uint256","name":"rate","type":"uint256"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000b31f66aa3c1e785363f0875a1b74e27b85fd66c7

-----Decoded View---------------
Arg [0] : wBase (address): 0xb31f66aa3c1e785363f0875a1b74e27b85fd66c7

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b31f66aa3c1e785363f0875a1b74e27b85fd66c7