// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../token/ERC777/ERC777Upgradeable.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

abstract contract ERC777MockUpgradeable is Initializable, ERC777Upgradeable {
    event BeforeTokenTransfer();

    function __ERC777Mock_init() internal onlyInitializing {
    }

    function __ERC777Mock_init_unchained() internal onlyInitializing {
    }
    function _beforeTokenTransfer(address, address, address, uint256) internal override {
        emit BeforeTokenTransfer();
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}