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18_Signature: 提供报错的解决方案 #171

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18_Signature: 提供报错的解决方案 #171

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11 changes: 11 additions & 0 deletions 18_Signature/Signature.js
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Expand Up @@ -8,6 +8,17 @@
// -> 调用合约的mint()函数进行铸造

import { ethers } from "ethers";
// 这里的 contract.json 是已经 link 好的 bytecode
// 如果使用 WTF-solidity 37 中 Signature.sol 由 foundry 或 remix 编译出的 json 文件
// 由于 lib 中带有 可见性为 public 的函数, 直接用这里的 json 会报 invalid BytesLike value
//
// 解决办法1:
// 先部署 ECDSA 合约， 把 bytecode 中的占位符换成 ECDSA 合约的地址（无0x前缀）
// 占位符形如 __$e56fc32e79819d3ff5a3cf88541a8407cd$__
// 见 https://docs.soliditylang.org/en/latest/using-the-compiler.html#library-linking
//
// 解决办法2:
// 把 lib 中的 public/external 函数全部换成 internal， 再编译一遍， 就可以直接用编译出的 bytecode 了
import * as contractJson from "./contract.json" assert {type: "json"};

// 1. 创建provider和wallet
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