javascript - React-redux connect HOC 作为类装饰器，@connect

Question

我有一个使用 react-redux 的连接 HOC 的 ES+ proposed decorator syntax 形式包装的组件:

import React, { Component } from 'react';
import { connect } from 'react-redux';
import RegisterForm from './register-form';
import { registerUser } from '../store/api/Auth/actions';

@connect(null, { registerUser: registerUser })
export default class RegisterPage extends Component {
  handleSubmit = values =>
    this.props.registerUser(values);

  render() {
    return (
      <div>
        <h1>Register Here</h1>
        <RegisterForm onSubmit={this.handleSubmit} />
      </div>
    );
  }
}

我收到一个错误:

Uncaught Error: You must pass a component to the function returned by connect. Instead received {"kind":"class","elements":[{"kind":"field","key":"handleSubmit","placement":"own","descriptor":{"configurable":true,"writable":true,"enumerable":false}},{"kind":"method","key":"render","placement":"prototype","descriptor":{"writable":true,"configurable":true,"enumerable":false}}]}

我正在使用带有 babel-loader 的 Webpack 4。我的 .babelrc 文件是:

{
  "presets": [
      "@babel/preset-env",
      "@babel/preset-react"
    ],
    "plugins": [
      "@babel/plugin-proposal-class-properties",
      ["@babel/plugin-proposal-decorators", { "decoratorsBeforeExport": true }]
    ]
}

在我看来connect函数的目标对象是类，但是connect函数接收的是那个类的属性描述符。我知道 React 和 Redux 团队不鼓励装饰器。这是一个相关的 SO 问题:React-Redux @connect syntax error

如何让@connect 装饰器工作？

Answer 1

确保在插件类属性之前注入(inject)装饰器插件

{
  "plugins": [
    "@babel/plugin-proposal-decorators",
    "@babel/plugin-proposal-class-properties"
  ]
}

babel-plugin-proposal-decorators