1、首先安装npm包

yarn add @openzeppelin/hardhat-upgrades

2、hardhat.config.ts文件中添加配置：

import "@openzeppelin/hardhat-upgrades";

2、两个基本合约如下：

// BoxV1
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/proxy/utils/Initializable.sol";

contract BoxV1 is Initializable {
    uint public x;

    function initialize(uint _val) external initializer {
        x = _val;
    }

    function cal() external {
        x = x + 1;
    }
}

// BoxV2
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/proxy/utils/Initializable.sol";

contract BoxV2 is Initializable {
    uint public x;

    function initialize(uint _val) external initializer {
        x = _val;
    }

    function cal() external {
        x = x * 2;
    }
}

目标：需要将原有合约（BoxV1）升级到合约（BoxV2）。

下面则是测试脚本内容：

import {
    time,
    loadFixture,
} from "@nomicfoundation/hardhat-toolbox/network-helpers";
import { anyValue } from "@nomicfoundation/hardhat-chai-matchers/withArgs";
import { expect } from "chai";
import hre from "hardhat";


describe("TPUProxy", function () {

    it("test_TPUProxy_Boxv1", async function () {
        // 分配EOA账户
        const [admin] = await hre.ethers.getSigners();
        console.log("admin address: " + admin.address);
        // 部署box1、boxv2合约
        const boxv1 = await hre.ethers.getContractFactory("BoxV1");
        const boxv1Instance = await hre.upgrades.deployProxy(boxv1, [1], { initializer: "initialize" });
        await boxv1Instance.waitForDeployment();

        // 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512
        console.log("proxy address: " + await boxv1Instance.getAddress());
        // 获取字节码
        // const creationcode = await boxv1Instance.interface.encodeFunctionData("initialize", [1]);
    });

    it("test_TPUPProxy_Boxv2", async function () {
        const boxv2 = await hre.ethers.getContractFactory("BoxV2");
        const boxv2Instance = await hre.upgrades.upgradeProxy(
            // 部署的BoxV1地址
            "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512",
            boxv2
        );
        await boxv2Instance.waitForDeployment();

        console.log(await boxv2Instance.getAddress());
        console.log(await boxv2Instance.x());
        await boxv2Instance.cal();
        console.log(await boxv2Instance.x());
    });
});

总结：

1、透明可升级合约的基本原理还是基于delegatecall方法进行扩展的；

2、升级合约（BoxV2）中的变量x还保留了BoxV1的状态，并且在此基础上进行方法调用和计算。

3、特点就是使用下面的方法代理合约：

const boxv2Instance = await hre.upgrades.upgradeProxy(
            // 逻辑合约（Boxv1）
            "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512",
            // 代理合约
            boxv2
        );

1、首先安装npm包

yarn add @openzeppelin/hardhat-upgrades

2、hardhat.config.ts文件中添加配置：

import "@openzeppelin/hardhat-upgrades";

2、两个基本合约如下：

// BoxV1
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/proxy/utils/Initializable.sol";

contract BoxV1 is Initializable {
    uint public x;

    function initialize(uint _val) external initializer {
        x = _val;
    }

    function cal() external {
        x = x + 1;
    }
}

// BoxV2
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/proxy/utils/Initializable.sol";

contract BoxV2 is Initializable {
    uint public x;

    function initialize(uint _val) external initializer {
        x = _val;
    }

    function cal() external {
        x = x * 2;
    }
}

目标：需要将原有合约（BoxV1）升级到合约（BoxV2）。

下面则是测试脚本内容：

import {
    time,
    loadFixture,
} from "@nomicfoundation/hardhat-toolbox/network-helpers";
import { anyValue } from "@nomicfoundation/hardhat-chai-matchers/withArgs";
import { expect } from "chai";
import hre from "hardhat";


describe("TPUProxy", function () {

    it("test_TPUProxy_Boxv1", async function () {
        // 分配EOA账户
        const [admin] = await hre.ethers.getSigners();
        console.log("admin address: " + admin.address);
        // 部署box1、boxv2合约
        const boxv1 = await hre.ethers.getContractFactory("BoxV1");
        const boxv1Instance = await hre.upgrades.deployProxy(boxv1, [1], { initializer: "initialize" });
        await boxv1Instance.waitForDeployment();

        // 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512
        console.log("proxy address: " + await boxv1Instance.getAddress());
        // 获取字节码
        // const creationcode = await boxv1Instance.interface.encodeFunctionData("initialize", [1]);
    });

    it("test_TPUPProxy_Boxv2", async function () {
        const boxv2 = await hre.ethers.getContractFactory("BoxV2");
        const boxv2Instance = await hre.upgrades.upgradeProxy(
            // 部署的BoxV1地址
            "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512",
            boxv2
        );
        await boxv2Instance.waitForDeployment();

        console.log(await boxv2Instance.getAddress());
        console.log(await boxv2Instance.x());
        await boxv2Instance.cal();
        console.log(await boxv2Instance.x());
    });
});

总结：

1、透明可升级合约的基本原理还是基于delegatecall方法进行扩展的；

2、升级合约（BoxV2）中的变量x还保留了BoxV1的状态，并且在此基础上进行方法调用和计算。

3、特点就是使用下面的方法代理合约：

const boxv2Instance = await hre.upgrades.upgradeProxy(
            // 逻辑合约（Boxv1）
            "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512",
            // 代理合约
            boxv2
        );