openzeppelin-contracts/contracts/mocks/ReentrancyAttackUpgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

contract ReentrancyAttackUpgradeable is Initializable, ContextUpgradeable {
    function __ReentrancyAttack_init() internal onlyInitializing {
    }

    function __ReentrancyAttack_init_unchained() internal onlyInitializing {
    }
    function callSender(bytes4 data) public {
        (bool success, ) = _msgSender().call(abi.encodeWithSelector(data));
        require(success, "ReentrancyAttack: failed call");
    }

    /**
     * @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;
}