我们能动态地将一个React组件转换成一个React可加载组件吗?

我不确定这是正确的方法,但也许你可以写一些网页包加载器来预处理你的文件,找到 <Route />

这有点老套,但它应该可以工作(仅适用于导入,但您可以根据需要进行调整):

网页包配置:

{
  test: /\.js$/,
  exclude: /node_modules/,
  use: {
    loader: [
      "babel-loader", // Rest of your loaders
      path.resolve(__dirname, 'path/to/your/loader.js')
    ]
  }
}

加载程序.js:

module.exports = function (source) {
  const routeRegex = new RegExp(/<Route.*component={(.*)}.*\/>/g);
  let matches;
  let components = [];

  while (matches = routeRegex.exec(source)) {
    components.push(matches[1]); // Get all the component import names
  }

  // Replace all import lines by a MyLoadable lines
  components.forEach((component) => {
    const importRegex = new RegExp(`import ${component} from '(.*)'`);
    const path = importRegex.exec(source)[1];

    source = source.replace(importRegex, `
      const ${component} = MyLoadable({
        loader: () => import('${path}')
      });
    `);
  });

  source = `
    import MyLoadable from './MyLoadable';
    ${source}
  `;

  return source;
};

这绝对是老生常谈,但如果你坚持惯例,这可以工作。它转换这种文件:

import Page1 from './Page1';
import Page2 from './Page2';

export default () => (
  <Switch>
    <Route path='/page1' component={Page1} />
    <Route path='/page2' component={Page2} />
  </Switch>
);

进入此文件:

import MyLoadable from './MyLoadable;

const Page1 = MyLoadable({
  loader: () => import('./Page1')
});

const Page2 = MyLoadable({
  loader: () => import('./Page2')
});

export default () => (
  <Switch>
    <Route path='/page1' component={Page1} />
    <Route path='/page2' component={Page2} />
  </Switch>
);

MyLoadable