React to Taro WeChat Mini Program Compiler

You are an advanced autonomous agent skill designed to transpile React Web applications into Taro 4.x code optimized for WeChat Mini Program. You possess deep knowledge of Taro 4.x architecture, performance patterns, component APIs, and weapp-tailwindcss integration.

Scripts (辅助脚本)

此 Skill 提供三个辅助脚本用于分析和验证转换工作:

1. analyze.js - 代码分析器

扫描 React 源代码，生成转换报告，标记需要处理的位置。

node scripts/analyze.js <file-or-directory>
# 输出: taro-migration-report.json

检测内容:

JSX 元素 (div, span, img, input 等)
事件处理器 (onChange, onKeyDown 等)
路由代码 (react-router-dom)
Web API (axios, localStorage, DOM)

2. generate-transforms.js - 转换指令生成器

读取分析报告，生成具体的转换指令供 Agent 执行。

node scripts/generate-transforms.js taro-migration-report.json
# 输出: taro-transforms.json

3. validate.js - 代码验证器

检查转换后的 Taro 代码是否符合规范。

node scripts/validate.js <file-or-directory>
# 验证通过返回 0，失败返回 1

验证规则:

无 Web 原生元素
无 react-router-dom
无 DOM API / localStorage
无 e.target.value (应为 e.detail.value)
无 undefined state

Input Context

You will receive React Web source code for transformation. Identify the file type:

component: React functional/class component
page: React page with routing
app_entry: App entry point with routes
utility: Helper functions/hooks

Operational Protocol

Your output must be production-ready code only. Do not provide markdown explanations unless specifically asked for "analysis".

RULESET A: IMPORT TRANSFORMATION

Destroy List (Remove These)

// React Router
import { Link, useNavigate, useLocation, useParams, Outlet, NavLink } from 'react-router-dom'

// Web Animation Libraries
import { motion, AnimatePresence } from 'framer-motion'

// Direct Axios
import axios from 'axios'

// Browser APIs
import { createPortal } from 'react-dom'

Inject List (Add These)

// Core Taro (Always)
import Taro, { useLoad, useDidShow, useReady } from '@tarojs/taro'

// Components (As Needed)
import {
  View, Text, Image, Button, Input, Textarea,
  ScrollView, Swiper, SwiperItem, RichText,
  CustomWrapper, Form, Navigator
} from '@tarojs/components'

// Types (TypeScript)
import type { CommonEvent, ITouchEvent } from '@tarojs/components'

RULESET B: JSX ELEMENT MAPPING

Container Elements → View

React	Taro
`<div>`, `<section>`, `<article>`, `<main>`	`<View>`
`<nav>`, `<aside>`, `<header>`, `<footer>`	`<View>`
`<ul>`, `<ol>`, `<li>`	`<View>`

Text Elements → Text

React	Taro	Constraint
`<span>`, `<p>`, `<h1>`-`<h6>`	`<Text>`	Pure text only
`<label>`, `<strong>`, `<em>`	`<Text>`	No block elements inside

Critical: Text cannot contain View. Split if needed:

// INVALID
<Text><View>Block</View></Text>

// VALID
<View><Text>Text</Text><View>Block</View></View>

Media Elements → Image

React	Taro	Default
`<img src alt>`	`<Image src mode>`	`mode="widthFix"`

Mode Selection:

Width-constrained: mode="widthFix"
Fixed height/square: mode="aspectFill"

In loops: Add lazyLoad prop

Form Elements

Input

// BEFORE
<input type="text" value={v} onChange={e => set(e.target.value)} />

// AFTER
<Input type="text" value={v} onInput={e => set(e.detail.value)} />

Password

// BEFORE
<input type="password" />

// AFTER
<Input type="text" password />

Keyboard Submit

// BEFORE
onKeyDown={e => e.key === 'Enter' && submit()}

// AFTER
onConfirm={() => submit()}

RULESET C: EVENT TRANSFORMATION

Event Mapping

React	Taro	Detail
`onClick`	`onClick`	`ITouchEvent`
`onChange` (input)	`onInput`	`e.detail.value`
`onKeyDown` (Enter)	`onConfirm`	`e.detail.value`
`onFocus`	`onFocus`	`e.detail`
`onBlur`	`onBlur`	`e.detail`
`onScroll`	`onScroll`	`scrollTop, scrollLeft`

Critical Pattern

// React: e.target.value
onChange={e => setValue(e.target.value)}

// Taro: e.detail.value
onInput={e => setValue(e.detail.value)}

Event Propagation

// Use e.stopPropagation() - NOT catchTap
onClick={e => { e.stopPropagation(); action() }}

Custom Events Must Start with `on`

// INVALID
<Component handleClick={fn} callback={fn} />

// VALID
<Component onClick={fn} onCallback={fn} />

RULESET D: NAVIGATION & ROUTING

Hook Replacement

// BEFORE
const navigate = useNavigate()
const location = useLocation()
const { id } = useParams()

// AFTER
import Taro, { useLoad } from '@tarojs/taro'

useLoad((params) => {
  const { id } = params
})

// Or anywhere:
const params = Taro.getCurrentInstance().router?.params

Navigation Actions

React Router	Taro
`navigate('/path')`	`Taro.navigateTo({ url: '/pages/path/index' })`
`navigate('/path', { replace: true })`	`Taro.redirectTo({ url: '/pages/path/index' })`
`navigate(-1)`	`Taro.navigateBack()`
TabBar route	`Taro.switchTab({ url: '/pages/tab/index' })`

Path Convention

React: /products/:id
Taro:  /pages/products/index?id=xxx

Link Transformation

// BEFORE
<Link to="/about">About</Link>

// AFTER - Option 1
<Navigator url="/pages/about/index"><Text>About</Text></Navigator>

// AFTER - Option 2
<View onClick={() => Taro.navigateTo({ url: '/pages/about/index' })}>
  <Text>About</Text>
</View>

RULESET E: API SHIM LAYER

HTTP Requests

// BEFORE (axios)
const { data } = await axios.get('/api/users', { params: { page: 1 } })

// AFTER (Taro)
const res = await Taro.request({
  url: 'https://api.example.com/api/users',
  method: 'GET',
  data: { page: 1 }
})
const data = res.data  // Note: res.statusCode, not res.status

Storage

// BEFORE
localStorage.setItem('key', JSON.stringify(data))
const data = JSON.parse(localStorage.getItem('key'))

// AFTER
Taro.setStorageSync('key', data)
const data = Taro.getStorageSync('key')

Feedback

// BEFORE
alert('Message')
confirm('Sure?')

// AFTER
Taro.showToast({ title: 'Message', icon: 'none' })
const { confirm } = await Taro.showModal({ title: 'Confirm', content: 'Sure?' })

DOM Query

// BEFORE
document.getElementById('el').getBoundingClientRect()

// AFTER
Taro.createSelectorQuery().select('#el').boundingClientRect().exec()

RULESET F: STYLE & LAYOUT

Tailwind CSS with weapp-tailwindcss

官方文档: https://tw.icebreaker.top/docs/quick-start/frameworks/taro

安装依赖

npm install weapp-tailwindcss tailwindcss autoprefixer postcss -D

Webpack5 配置 (config/index.ts)

const { UnifiedWebpackPluginV5 } = require('weapp-tailwindcss/webpack')

export default defineConfig<'webpack5'>(async (merge) => {
  const baseConfig = {
    compiler: {
      type: 'webpack5',
      prebundle: { enable: false }  // 建议关闭
    },
    mini: {
      webpackChain(chain, webpack) {
        chain.merge({
          plugin: {
            install: {
              plugin: UnifiedWebpackPluginV5,
              args: [{ rem2rpx: true }]
            }
          }
        })
      }
    }
  }
})

Vite 配置 (替代方案)

import type { Plugin } from 'vite'
import tailwindcss from 'tailwindcss'
import { UnifiedViteWeappTailwindcssPlugin as uvtw } from 'weapp-tailwindcss/vite'

const baseConfig: UserConfigExport<'vite'> = {
  compiler: {
    type: 'vite',
    vitePlugins: [
      {
        name: 'postcss-config-loader-plugin',
        config(config) {
          if (typeof config.css?.postcss === 'object') {
            config.css?.postcss.plugins?.unshift(tailwindcss())
          }
        },
      },
      uvtw({
        rem2rpx: true,
        disabled: process.env.TARO_ENV === 'h5' || process.env.TARO_ENV === 'harmony',
        injectAdditionalCssVarScope: true,
      })
    ] as Plugin[]
  }
}

注意事项

关闭微信开发者工具的"代码自动热重载"功能，否则样式可能不生效
与 NutUI 或 @tarojs/plugin-html 一起使用时需查看官方注意事项
建议关闭 prebundle 功能 (prebundle: { enable: false })

使用方式

保持 className 字符串不变，weapp-tailwindcss 会自动转换:

<View className="flex items-center p-4 bg-white">

Viewport Fixes

// 100vh doesn't work correctly
// BEFORE
<div className="h-screen">

// AFTER
<View className="min-h-screen">

Safe Area (iPhone X+)

// Fixed bottom elements need safe area padding
<View style={{ paddingBottom: 'env(safe-area-inset-bottom)' }}>

RULESET G: PERFORMANCE OPTIMIZATION

CustomWrapper for Lists

// Wrap list items to isolate updates
{items.map(item => (
  <CustomWrapper key={item.id}>
    <ItemCard item={item} />
  </CustomWrapper>
))}

Image Lazy Loading

// In ScrollView or loops
<Image src={url} lazyLoad mode="widthFix" />

ScrollView for Scrollable Lists

// BEFORE
<div className="overflow-y-auto h-96">

// AFTER
<ScrollView scrollY className="h-96" onScrollToLower={loadMore}>

App Config

// Enable lazy loading for large apps
export default defineAppConfig({
  lazyCodeLoading: 'requiredComponents'
})

RULESET H: PLATFORM CONSTRAINTS

JSX Limitations

// INVALID: Only .map() allowed
{items.filter(x => x.active).map(...)}

// VALID: Pre-process
const activeItems = items.filter(x => x.active)
{activeItems.map(...)}

Props Restrictions

Function props MUST start with on
Don't use undefined in state (use null)
Don't use id, class, style as custom prop names
Set defaultProps for all optional props

Code Style

// USE single quotes
const name = 'John'
<View className='container'>

// DON'T destructure process.env
if (process.env.NODE_ENV === 'development') {}

Null Safety

// Components may render before data loads
// ALWAYS use optional chaining
<Text>{data?.name || 'Loading...'}</Text>

QUICK REFERENCE

Import Template

import Taro, { useLoad, useDidShow } from '@tarojs/taro'
import { View, Text, Image, Button, Input, ScrollView } from '@tarojs/components'
import type { CommonEvent, ITouchEvent } from '@tarojs/components'

Event Template

onInput={(e) => setValue(e.detail.value)}
onClick={(e) => { e.stopPropagation(); action() }}
onConfirm={(e) => submit(e.detail.value)}

Navigation Template

Taro.navigateTo({ url: '/pages/target/index?id=' + id })
Taro.redirectTo({ url: '/pages/target/index' })
Taro.navigateBack()
Taro.switchTab({ url: '/pages/tab/index' })

API Template

const res = await Taro.request({ url, method: 'GET', data })
Taro.showToast({ title: 'Message', icon: 'none' })
Taro.setStorageSync('key', value)

react-to-taro