TokenReceiver.sol

// This file is part of Modular Account.
//
// Copyright 2024 Alchemy Insights, Inc.
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify it under the terms of the GNU General
// Public License as published by the Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with this program. If not, see
// <https://www.gnu.org/licenses/>.

pragma solidity ^0.8.28;

import {IERC1155Receiver} from "@openzeppelin/contracts/interfaces/IERC1155Receiver.sol";
import {IERC721Receiver} from "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

/// @title Token Receiver
/// @author Alchemy
/// @notice Token receiver, supports tokens callbacks to allow the account to receive supported tokens.
abstract contract TokenReceiver is IERC721Receiver, IERC1155Receiver {
    /// @inheritdoc IERC721Receiver
    function onERC721Received(address, address, uint256, bytes calldata) external pure override returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

    /// @inheritdoc IERC1155Receiver
    function onERC1155Received(address, address, uint256, uint256, bytes calldata)
        external
        pure
        override
        returns (bytes4)
    {
        return IERC1155Receiver.onERC1155Received.selector;
    }

    /// @inheritdoc IERC1155Receiver
    function onERC1155BatchReceived(address, address, uint256[] calldata, uint256[] calldata, bytes calldata)
        external
        pure
        override
        returns (bytes4)
    {
        return IERC1155Receiver.onERC1155BatchReceived.selector;
    }
}