解析模組失敗：遇到保留關鍵字'介面”

Question

我嘗試編寫一個公共元件 rd-component ，其中包含一些跨所有專案使用的公共頁面。當我匯入此公共頁面時，顯示錯誤：

Module parse failed: The keyword 'interface' is reserved (15:0)

我做了一個最小的重現範例，這是使用公共頁面的簡單元件：

import './App.css';
import React from 'react';
import Goods from "rd-component/src/component/good/Goods";

const Chat: React.FC = (props) => {

  return (<Goods></Goods>);
}

export default Chat;

這是 Index.tsx：

import React from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';
import './index.css';
import reportWebVitals from './reportWebVitals';
import Chat from './App';

const root = ReactDOM.createRoot(
  document.getElementById('root') as HTMLElement
);
root.render(
  <React.StrictMode>
    <Chat />
  </React.StrictMode>
);


reportWebVitals();

這是我的 package.json 包含所有套件：

{
  "name": "react-demo",
  "version": "0.1.0",
  "private": true,
  "config-overrides-path": "src/config/config-overrides.js",
  "dependencies": {
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^13.4.0",
    "@testing-library/user-event": "^13.5.0",
    "@textea/json-viewer": "^2.16.2",
    "@types/jest": "^27.5.2",
    "@types/node": "^16.18.21",
    "@types/react": "^18.0.30",
    "@types/react-dom": "^18.0.11",
    "antd": "^5.4.0",
    "prismjs": "^1.29.0",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "react-syntax-highlighter": "^15.5.0",
    "typescript": "^4.9.5",
    "web-vitals": "^2.1.4",
    "rd-component": "0.1.1"
  },
  "scripts": {
    "start": "react-app-rewired start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "@types/react-syntax-highlighter": "^15.5.6",
    "customize-cra": "^1.0.0",
    "react-app-rewired": "^2.2.1"
  }
}

這是執行指令 npm run build 時的完整錯誤輸出：

> react-demo@0.1.0 build
> react-scripts build

Creating an optimized production build...
Failed to compile.

Module parse failed: The keyword 'interface' is reserved (15:0)
File was processed with these loaders:
 * ./node_modules/source-map-loader/dist/cjs.js
You may need an additional loader to handle the result of these loaders.
| import { doPay } from "@/service/pay/PayService";
| 
> interface IGoodsProp {
|   appId: string;
| }

Answer 1

預設情況下，TypeScript（或者可能是 create-react-app，如果您正在使用的話）不會從 node_modules 編譯模組。

您的 Goods 元件似乎就是這種情況：

import Goods from "rd-component/src/component/good/Goods";

{
  "dependencies": {
    // ...
    "rd-component": "0.1.1"
  }
}

預設配置假設 node_modules 中的所有內容都已準備好供純 JavaScript 專案使用。

因此，TypeScript 編寫的函式庫元件預計已轉換為 JavaScript。

話雖這麼說，您仍然可以嘗試一種簡單的解決方法，其中包括在項目 src 中添加一個指向庫源的 TypeScript 文件的符號鏈接。

IIRC，不幸的是，某些建置引擎「太」智能，甚至可以透過符號連結查看實際路徑...在這種情況下，您必須手動將庫包含在編譯範圍中。

當然，正確的解決方案是預先編譯您的函式庫。