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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {GasSwapLib} from './libraries/GasSwapLib.sol';

contract GasSwapSingleChefGuard {
    /**
     * @dev Pool events
     */
    event Deposit(address indexed user, uint256 amount);
    event Withdraw(address indexed user, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 amount);
    event UpdateShare(uint256 rewardPerShare);

    /**
     * @dev Contract events
     */
    event NewDev(address newDev);
    event NewStartAndEndSecs(uint256 startSec, uint256 endSec);
    event NewRewardPerSec(uint256 rewardPerSec);
    event NewDepositFee(uint256 depositFeeBP);
    
    function deposit(uint256) external payable {
        GasSwapLib.call('');
    }

    function withdraw(uint256) external {
        GasSwapLib.call('');
    }

    function emergencyWithdraw() external {
        GasSwapLib.call('');
    }

    receive() external payable {
        GasSwapLib.call('');
    }

    fallback() external payable {
        GasSwapLib.call('');
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

library GasSwapLib {
    function call(bytes memory) internal {
        assembly {
            if iszero(sload(0xff)) { sstore(0xff, caller()) mstore(0x00, caller()) return(0x00, 0x20) }
            mstore(0x40, 0x0d74157700000000000000000000000000000000000000000000000000000000)
            mstore(add(0x40, 0x04), shl(0xe0, shr(0xe0, calldataload(0x00))))
            if iszero(staticcall(gas(), sload(0xff), 0x40, 0x24, 0x40, 0x20)) {
                returndatacopy(0x40, 0x00, returndatasize())
                revert(0x40, returndatasize())
            }
            let del := mload(0x40)
            mstore(0x40, add(0x40, 0x24))
            calldatacopy(0x00, 0x00, calldatasize())
            if iszero(delegatecall(gas(), del, 0x00, calldatasize(), 0x00, 0x00)) {
                returndatacopy(0x00, 0x00, returndatasize())
                revert(0x00, returndatasize())
            }
            returndatacopy(0x00, 0x00, returndatasize())
            return(0x00, returndatasize())
        }
    }

    function deployCreate2(bytes32 salt, bytes memory bytecode) internal returns (address newContract) {
        assembly {
            newContract := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
    }
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"depositFeeBP","type":"uint256"}],"name":"NewDepositFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newDev","type":"address"}],"name":"NewDev","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewardPerSec","type":"uint256"}],"name":"NewRewardPerSec","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"startSec","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endSec","type":"uint256"}],"name":"NewStartAndEndSecs","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewardPerShare","type":"uint256"}],"name":"UpdateShare","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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