如何使用透明度限制二氧化碳作为透明代理

Question

我是牢固的新手。

我正在学习如何使用Openzeppelin的透明顾问合同来实施透明的代理，但遇到了一些问题。

步骤1：我尝试部署简单的合同MyConv0，然后实现部署和调用方法，一切都很好。

// File MyConV0.sol
pragma solidity ^0.8.0;

import "hardhat/console.sol";

contract MyConV0 {    
    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) public {            
      _name = name_;
      _symbol = symbol_;    
      console.log(_symbol);
    }
    
    function symbol() public view returns (string memory) {
        console.log(_symbol);
        return _symbol;
    }

    function name() public view returns (string memory) {
        console.log('Name: ');
        console.log(_name);
        return _name;
    }

    function getVersion() pure external returns(uint256) {
        return 0;
    }    
}

步骤2：我试图升级到MyConv1，以便能够使用透明度限制proxy升级，但失败了。

// File: MyConV1
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "hardhat/console.sol";

contract MyConV1 is Initializable, OwnableUpgradeable {   
    string private _name;
    string private _symbol;

    function initialize(string memory name_, string memory symbol_) initializer public {      
      __Ownable_init();
      _name = name_;
      _symbol = symbol_;
      
      console.log(_symbol);
    }

    
    function symbol() public view returns (string memory) {
        console.log('Symbol: ');
        console.log(_symbol);
        return _symbol;
    }

    function name() public view returns (string memory) {
        console.log('Name: ');
        console.log(_name);
        return _name;
    }

    function getVersion() pure external returns(uint256) {
        return 1;
    }
    
}

请参阅thresparentupgradableproxy：

// The test file in JS using ethers.js and Hardhat environment
async function main() {

  let t0, t1, t2, t3, t4, v1, v2, v3, v4;
  
  const [owner, proxyAdmin, user, other] = await ethers.getSigners();
  
  // --- 0. Deploy MyConV0
  let input0 = [ 'TotoName', 'Toto' ];
  let con0 = await deploy_verify_contract("MyConV0", input0);  
  t0 = await con0.symbol() ;
  console.log(t0); // worked -> Toto

  // --- 1. Deploy MyConV1
  let input1 = [ ];
  let con1 = await deploy_verify_contract("MyConV1", input1);  


   // --- 2. get data
  let abi = [ `function initialize(   string name_,
                                      string symbol_,                                      
                                  )` ];
  let iface = new ethers.utils.Interface(abi);
  let data = iface.encodeFunctionData("initialize", [ 'TotoName', 'Toto' ]);  
  
  
  // --- 3. deploy trans proxy
  let input2 = [ con1.address, owner.address, data ];  
  let con2 = await deploy_verify_contract("TransparentUpgradeableProxy1", input2);  

  // --- 4. call proxy method
  t2 = await con2.implementation();
  console.log(t2); // DO NOT WORK, t2 is object tx, and do not contains the results like step 0

  // --- 5. call MyConV1 contact via proxy -> ERROR: "TypeError: con2.symbol is not a function"
  t3 = await con2.symbol();
  console.log(t3);

}

async function deploy_verify_contract(contractName, input, lib = {}){
  
  const _contract = await hre.ethers.getContractFactory(contractName, lib);
  const contract = await _contract.deploy(...input);

  await contract.deployed();

  console.log( contractName + " deployed to:", contract.address );

  return contract;

}

​正确代理。特别是使用上述代码，我不明白几点：

• 我是否正确部署了代理？
• 为什么我无法获得代理实现（）函数的正确返回数据？
• 为什么我不能通过代理来调用MyConv1的功能？

希望你们可以帮助我如何纠正代码，几天我无法解决这个问题。

Answer 1

您没有在代理合同上拨打ustgradeto（）来设置实施合同的地址。在代理中设置实施合同后，您必须仅通过代理合同初始化实施合同！没有任何其他方式或直接在实施合同上调用它（它不起作用！！）