Tokyo Mongz Hills Club OFFICIAL

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/3dac7bbed7b4c0dbf504180c33e8ed8e350b93eb/contracts/access/Ownable.sol";

contract ProxyStorage is Ownable {
    address public implementation;
}

contract Proxy is ProxyStorage {

    constructor(address _implementation) {
        setImplementation(_implementation);
    }

    function setImplementation(address _implementation) public onlyOwner() {
        implementation = _implementation;
    }

    fallback () external {
        assembly {
            let ptr := mload(0x40)
            calldatacopy(ptr, 0, calldatasize())

            let result := delegatecall (
                gas(),
                sload(implementation.slot),
                ptr,
                calldatasize(),
                0,
                0
            )

            let size := returndatasize()
            returndatacopy(ptr, 0, size)

            switch result
            case 0 {
                revert(ptr, size)
            }
            default {
                return(ptr, size)
            }
        }       
    }
}

{
  "compilationTarget": {
    "contract-TMHC/Proxy.sol": "Proxy"
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}