add courseware
This commit is contained in:
xie jie
parent
6dcec4143b
commit
c09ae961b5
39
源码篇/01. 课程介绍/课程介绍.md
Normal file
39
源码篇/01. 课程介绍/课程介绍.md
Normal file
@ -0,0 +1,39 @@
|
|||||||
|
# 课程介绍
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 为什么要去学习源码
|
||||||
|
|
||||||
|
学习源码具有如下的好处：
|
||||||
|
|
||||||
|
- 深入理解框架或者库内部的工作原理
|
||||||
|
- 能够提升我们的编程技能
|
||||||
|
- 扩展职业发展空间
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 学习源码的一个正确姿势
|
||||||
|
|
||||||
|
1. 首先需要强调一个点，学习源码并非一朝一夕的事情。特别是 React 源码。在阅读 React 源码的时候，一定要做到“不要急躁，急不得”。
|
||||||
|
2. 在讲解源码的时候我会有一个取舍，只会关注比较核心的几个部分。实际上在上一个章节《架构篇》已经讲解了React内部比较核心的几个部分的工作原理，因此这套课程的聚焦点带着大家写一个 mini 版本的 React
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 学习源码前的一个准备工作
|
||||||
|
|
||||||
|
这里就一个要求：一定要看过上一个篇章《架构篇》的内容，了解整个 React 的核心思想
|
||||||
|
|
||||||
|
- Fiber
|
||||||
|
- Fiber 是什么
|
||||||
|
- Fiber 双缓冲是什么
|
||||||
|
- Fiber 架构又是什么
|
||||||
|
- React 整体的渲染流程
|
||||||
|
- Scheduler
|
||||||
|
- MessageChannel
|
||||||
|
- 最小堆
|
||||||
|
- Reconciler
|
||||||
|
- beginWork
|
||||||
|
- completeWork
|
||||||
|
- diff 算法核心思想
|
||||||
|
- Renderer
|
||||||
|
- Hooks 的工作原理
|
||||||
20
源码篇/02. 完成createFiber方法/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/02. 完成createFiber方法/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/02. 完成createFiber方法/react-mini2/.gitignore
vendored
Normal file
24
源码篇/02. 完成createFiber方法/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/02. 完成createFiber方法/react-mini2/README.md
Normal file
8
源码篇/02. 完成createFiber方法/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/02. 完成createFiber方法/react-mini2/index.html
Normal file
13
源码篇/02. 完成createFiber方法/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
26
源码篇/02. 完成createFiber方法/react-mini2/package.json
Normal file
26
源码篇/02. 完成createFiber方法/react-mini2/package.json
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/02. 完成createFiber方法/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/02. 完成createFiber方法/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/02. 完成createFiber方法/react-mini2/public/vite.svg
Normal file
1
源码篇/02. 完成createFiber方法/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
19
源码篇/02. 完成createFiber方法/react-mini2/src/App.jsx
Normal file
19
源码篇/02. 完成createFiber方法/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
function App() {
|
||||||
|
return (
|
||||||
|
<div className="container">
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1</p>
|
||||||
|
<p>2</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3</p>
|
||||||
|
<p>4</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a tes1</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/02. 完成createFiber方法/react-mini2/src/assets/react.svg
Normal file
1
源码篇/02. 完成createFiber方法/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
45
源码篇/02. 完成createFiber方法/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
45
源码篇/02. 完成createFiber方法/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,45 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
75
源码篇/02. 完成createFiber方法/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
75
源码篇/02. 完成createFiber方法/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
@ -0,0 +1,75 @@
|
|||||||
|
import { Placement, isStr, isFn, isUndefined } from "../shared/utils";
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostComponent,
|
||||||
|
HostText,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} vnode 当前的 vnode 节点
|
||||||
|
* @param {*} returnFiber 父 Fiber 节点
|
||||||
|
*/
|
||||||
|
function createFiber(vnode, returnFiber) {
|
||||||
|
const fiber = {
|
||||||
|
// fiber 的类型
|
||||||
|
type: vnode.type,
|
||||||
|
// key
|
||||||
|
key: vnode.key,
|
||||||
|
// props
|
||||||
|
props: vnode.props,
|
||||||
|
// 存储当前的 fiber 对象所对应的 DOM 节点
|
||||||
|
stateNode: null,
|
||||||
|
// 整个 fiber 树是以链表的形式串联起来的，因此需要 child、sibling 之类的
|
||||||
|
// 子 fiber
|
||||||
|
child: null,
|
||||||
|
// 兄弟 fiber
|
||||||
|
sibling: null,
|
||||||
|
// 父 fiber
|
||||||
|
return: returnFiber,
|
||||||
|
// 该 fiber 对象要做的具体操作
|
||||||
|
flags: Placement,
|
||||||
|
// 记录当前节点在当前层级下的位置
|
||||||
|
index: null,
|
||||||
|
// 存储旧的 fiber 对象
|
||||||
|
alternate: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
// 实际上 fiber 对象上面还有一个 tag 值
|
||||||
|
// 这个 tag 值是什么取决于 fiber 的 type 值
|
||||||
|
// 不同的 vnode 类型，type 是有所不同的
|
||||||
|
|
||||||
|
const type = vnode.type; // 先存储一下 type 值，之后不用每次都去获取
|
||||||
|
if (isStr(type)) {
|
||||||
|
// 原生标签
|
||||||
|
fiber.tag = HostComponent;
|
||||||
|
} else if (isFn(type)) {
|
||||||
|
// 注意这里会有两种情况：函数组件和类组件的 type 都是 function
|
||||||
|
// 例如函数组件的 type 值为 f xxx()
|
||||||
|
// 类组件 class XXX，背后仍然是一个函数
|
||||||
|
// 所以我们通过判断 type 是否有 isReactComponent 属性来判断是否为类组件
|
||||||
|
if (type.prototype.isReactComponent) {
|
||||||
|
// 类组件
|
||||||
|
fiber.tag = ClassComponent;
|
||||||
|
} else {
|
||||||
|
// 函数组件
|
||||||
|
fiber.tag = FunctionComponent;
|
||||||
|
}
|
||||||
|
} else if (isUndefined(type)) {
|
||||||
|
// 说明这是一个文本节点
|
||||||
|
fiber.tag = HostText;
|
||||||
|
// 除此之外还需要多做一件事情
|
||||||
|
// 文本节点是没有 props 属性的，我们将手动的给该 fiber 设置一个 props 属性
|
||||||
|
fiber.props = {
|
||||||
|
children: vnode,
|
||||||
|
};
|
||||||
|
} else {
|
||||||
|
// 说明这是一个 Fragment
|
||||||
|
fiber.tag = Fragment;
|
||||||
|
}
|
||||||
|
|
||||||
|
return fiber;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default createFiber;
|
||||||
27
源码篇/02. 完成createFiber方法/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
27
源码篇/02. 完成createFiber方法/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
/**
|
||||||
|
* 不同类型的 fiber 对象，有不同的 tag 值
|
||||||
|
*/
|
||||||
|
export const FunctionComponent = 0; // 函数组件
|
||||||
|
export const ClassComponent = 1; // 类组件
|
||||||
|
export const IndeterminateComponent = 2; // 初始化的时候不知道是函数组件还是类组件
|
||||||
|
export const HostRoot = 3; // Root Fiber 可以理解为根元素 ， 通过reactDom.render()产生的根元素
|
||||||
|
export const HostPortal = 4; // 对应 ReactDOM.createPortal 产生的 Portal
|
||||||
|
export const HostComponent = 5; // dom 元素 比如 <div>
|
||||||
|
export const HostText = 6; // 文本节点
|
||||||
|
export const Fragment = 7; // 对应 <React.Fragment>
|
||||||
|
export const Mode = 8; // 对应 <React.StrictMode>
|
||||||
|
export const ContextConsumer = 9; // 对应 <Context.Consumer>
|
||||||
|
export const ContextProvider = 10; // 对应 <Context.Provider>
|
||||||
|
export const ForwardRef = 11; // 对应 React.ForwardRef
|
||||||
|
export const Profiler = 12; // 对应 <Profiler/ >
|
||||||
|
export const SuspenseComponent = 13; // 对应 <Suspense>
|
||||||
|
export const MemoComponent = 14; // 对应 React.memo 返回的组件
|
||||||
|
export const SimpleMemoComponent = 15;
|
||||||
|
export const LazyComponent = 16;
|
||||||
|
export const IncompleteClassComponent = 17;
|
||||||
|
export const DehydratedFragment = 18;
|
||||||
|
export const SuspenseListComponent = 19;
|
||||||
|
export const ScopeComponent = 21;
|
||||||
|
export const OffscreenComponent = 22;
|
||||||
|
export const LegacyHiddenComponent = 23;
|
||||||
|
export const CacheComponent = 24;
|
||||||
41
源码篇/02. 完成createFiber方法/react-mini2/src/lib/shared/utils.js
vendored
Normal file
41
源码篇/02. 完成createFiber方法/react-mini2/src/lib/shared/utils.js
vendored
Normal file
@ -0,0 +1,41 @@
|
|||||||
|
// 存放工具方法的文件
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 对 fiber 对象要做的操作进行的标记
|
||||||
|
*/
|
||||||
|
|
||||||
|
// 没有任何操作
|
||||||
|
export const NoFlags = 0b00000000000000000000;
|
||||||
|
// 节点新增、插入、移动
|
||||||
|
export const Placement = 0b0000000000000000000010; // 2
|
||||||
|
// 节点更新属性
|
||||||
|
export const Update = 0b0000000000000000000100; // 4
|
||||||
|
// 删除节点
|
||||||
|
export const Deletion = 0b0000000000000000001000; // 8
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为字符串
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isStr(s) {
|
||||||
|
return typeof s === "string";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 fn 是否为函数
|
||||||
|
* @param {*} fn
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isFn(fn) {
|
||||||
|
return typeof fn === "function";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为 undefined
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isUndefined(s) {
|
||||||
|
return s === undefined;
|
||||||
|
}
|
||||||
24
源码篇/02. 完成createFiber方法/react-mini2/src/main.jsx
Normal file
24
源码篇/02. 完成createFiber方法/react-mini2/src/main.jsx
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
// 引入 React 原生库
|
||||||
|
// import ReactDOM from "react-dom/client";
|
||||||
|
|
||||||
|
// 引入我们自己的库
|
||||||
|
import ReactDOM from "./lib/react-dom/ReactDOM";
|
||||||
|
|
||||||
|
// import App from "./App.jsx";
|
||||||
|
|
||||||
|
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||||
|
|
||||||
|
// root.render(<App />);
|
||||||
|
|
||||||
|
// root.render(
|
||||||
|
// <div id="oDiv" className="test">
|
||||||
|
// <ul>
|
||||||
|
// <li>苹果</li>
|
||||||
|
// <li>香蕉</li>
|
||||||
|
// <li>西瓜</li>
|
||||||
|
// </ul>
|
||||||
|
// 1111
|
||||||
|
// </div>
|
||||||
|
// );
|
||||||
|
|
||||||
|
root.render(1111);
|
||||||
7
源码篇/02. 完成createFiber方法/react-mini2/vite.config.js
Normal file
7
源码篇/02. 完成createFiber方法/react-mini2/vite.config.js
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
import { defineConfig } from 'vite'
|
||||||
|
import react from '@vitejs/plugin-react'
|
||||||
|
|
||||||
|
// https://vitejs.dev/config/
|
||||||
|
export default defineConfig({
|
||||||
|
plugins: [react()],
|
||||||
|
})
|
||||||
20
源码篇/03. 完成workloop方法/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/03. 完成workloop方法/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/03. 完成workloop方法/react-mini2/.gitignore
vendored
Normal file
24
源码篇/03. 完成workloop方法/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/03. 完成workloop方法/react-mini2/README.md
Normal file
8
源码篇/03. 完成workloop方法/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/03. 完成workloop方法/react-mini2/index.html
Normal file
13
源码篇/03. 完成workloop方法/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
26
源码篇/03. 完成workloop方法/react-mini2/package.json
Normal file
26
源码篇/03. 完成workloop方法/react-mini2/package.json
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/03. 完成workloop方法/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/03. 完成workloop方法/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/03. 完成workloop方法/react-mini2/public/vite.svg
Normal file
1
源码篇/03. 完成workloop方法/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
19
源码篇/03. 完成workloop方法/react-mini2/src/App.jsx
Normal file
19
源码篇/03. 完成workloop方法/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
function App() {
|
||||||
|
return (
|
||||||
|
<div className="container">
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1</p>
|
||||||
|
<p>2</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3</p>
|
||||||
|
<p>4</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a tes1</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/03. 完成workloop方法/react-mini2/src/assets/react.svg
Normal file
1
源码篇/03. 完成workloop方法/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
50
源码篇/03. 完成workloop方法/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
50
源码篇/03. 完成workloop方法/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
import scheduleUpdateOnFiber from "../reconciler/ReactFiberWorkLoop";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
const fiber = createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
// console.log(fiber);
|
||||||
|
// 到目前为止，我们就创建了第一个 fiber 对象
|
||||||
|
// 但是目前仅仅只有最外层的父元素创建了对应的 fiber 对象
|
||||||
|
scheduleUpdateOnFiber(fiber);
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
// console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
75
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
75
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
@ -0,0 +1,75 @@
|
|||||||
|
import { Placement, isStr, isFn, isUndefined } from "../shared/utils";
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostComponent,
|
||||||
|
HostText,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} vnode 当前的 vnode 节点
|
||||||
|
* @param {*} returnFiber 父 Fiber 节点
|
||||||
|
*/
|
||||||
|
function createFiber(vnode, returnFiber) {
|
||||||
|
const fiber = {
|
||||||
|
// fiber 的类型
|
||||||
|
type: vnode.type,
|
||||||
|
// key
|
||||||
|
key: vnode.key,
|
||||||
|
// props
|
||||||
|
props: vnode.props,
|
||||||
|
// 存储当前的 fiber 对象所对应的 DOM 节点
|
||||||
|
stateNode: null,
|
||||||
|
// 整个 fiber 树是以链表的形式串联起来的，因此需要 child、sibling 之类的
|
||||||
|
// 子 fiber
|
||||||
|
child: null,
|
||||||
|
// 兄弟 fiber
|
||||||
|
sibling: null,
|
||||||
|
// 父 fiber
|
||||||
|
return: returnFiber,
|
||||||
|
// 该 fiber 对象要做的具体操作
|
||||||
|
flags: Placement,
|
||||||
|
// 记录当前节点在当前层级下的位置
|
||||||
|
index: null,
|
||||||
|
// 存储旧的 fiber 对象
|
||||||
|
alternate: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
// 实际上 fiber 对象上面还有一个 tag 值
|
||||||
|
// 这个 tag 值是什么取决于 fiber 的 type 值
|
||||||
|
// 不同的 vnode 类型，type 是有所不同的
|
||||||
|
|
||||||
|
const type = vnode.type; // 先存储一下 type 值，之后不用每次都去获取
|
||||||
|
if (isStr(type)) {
|
||||||
|
// 原生标签
|
||||||
|
fiber.tag = HostComponent;
|
||||||
|
} else if (isFn(type)) {
|
||||||
|
// 注意这里会有两种情况：函数组件和类组件的 type 都是 function
|
||||||
|
// 例如函数组件的 type 值为 f xxx()
|
||||||
|
// 类组件 class XXX，背后仍然是一个函数
|
||||||
|
// 所以我们通过判断 type 是否有 isReactComponent 属性来判断是否为类组件
|
||||||
|
if (type.prototype.isReactComponent) {
|
||||||
|
// 类组件
|
||||||
|
fiber.tag = ClassComponent;
|
||||||
|
} else {
|
||||||
|
// 函数组件
|
||||||
|
fiber.tag = FunctionComponent;
|
||||||
|
}
|
||||||
|
} else if (isUndefined(type)) {
|
||||||
|
// 说明这是一个文本节点
|
||||||
|
fiber.tag = HostText;
|
||||||
|
// 除此之外还需要多做一件事情
|
||||||
|
// 文本节点是没有 props 属性的，我们将手动的给该 fiber 设置一个 props 属性
|
||||||
|
fiber.props = {
|
||||||
|
children: vnode,
|
||||||
|
};
|
||||||
|
} else {
|
||||||
|
// 说明这是一个 Fragment
|
||||||
|
fiber.tag = Fragment;
|
||||||
|
}
|
||||||
|
|
||||||
|
return fiber;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default createFiber;
|
||||||
81
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
81
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
@ -0,0 +1,81 @@
|
|||||||
|
// 该文件负责整个 React 的一个执行流行
|
||||||
|
|
||||||
|
// wip 的英语全称为 work in progress，表示正在进行的工作
|
||||||
|
// 我们使用这个变量来保存当前正在进行的工作 fiber 对象
|
||||||
|
let wip = null;
|
||||||
|
|
||||||
|
// 从名字上也可以看出，这是保存当前根节点的 fiber 对象
|
||||||
|
let wipRoot = null;
|
||||||
|
|
||||||
|
function scheduleUpdateOnFiber(fiber) {
|
||||||
|
wip = fiber;
|
||||||
|
wipRoot = fiber;
|
||||||
|
|
||||||
|
// 目前我们先使用 requestIdleCallback 来进行调用
|
||||||
|
// 后期使用 scheduler 包来进行调用
|
||||||
|
// 当浏览器的每一帧有空闲时间的时候，就会执行 workloop 函数
|
||||||
|
requestIdleCallback(workloop);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数会在每一帧有剩余时间的时候执行
|
||||||
|
*/
|
||||||
|
function workloop(deadline) {
|
||||||
|
while (wip && deadline.timeRemaining() > 0) {
|
||||||
|
// 进入此循环，说明有需要进行处理的 fiber 节点
|
||||||
|
// 并且目前也有时间来处理
|
||||||
|
performUnitOfWork(); // 该方法负责处理一个 fiber 节点
|
||||||
|
}
|
||||||
|
|
||||||
|
// 代码来这里，说明要么是没时间，这个我们不需要管
|
||||||
|
// 还有一种情况，就是整个 fiber 树都处理完了
|
||||||
|
if (!wip) {
|
||||||
|
// 说明整个 fiber 树都处理完了
|
||||||
|
// 我们需要将 wipRoot 提交到 DOM 节点上
|
||||||
|
commitRoot();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数主要负责处理一个 fiber 节点
|
||||||
|
* 有下面的事情要做：
|
||||||
|
* 1. 处理当前的 fiber 对象
|
||||||
|
* 2. 通过深度优先遍历子节点，生成子节点的 fiber 对象，然后继续处理
|
||||||
|
* 3. 提交副作用
|
||||||
|
* 4. 进行渲染
|
||||||
|
*/
|
||||||
|
function performUnitOfWork() {
|
||||||
|
beginWork(wip); // 处理当前的 fiber 对象
|
||||||
|
|
||||||
|
// 如果有子节点，将 wip 更新为子节点
|
||||||
|
if (wip.child) {
|
||||||
|
wip = wip.child;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
completeWork(wip);
|
||||||
|
|
||||||
|
// 如果没有子节点，就需要找到兄弟节点
|
||||||
|
let next = wip; // 先缓存一下当前的 wip
|
||||||
|
while (next) {
|
||||||
|
if (next.sibling) {
|
||||||
|
wip = next.sibling;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果没有进入上面的 if，说明当前节点后面已经没有兄弟节点了
|
||||||
|
// 那么就需要将父节点设置为当前正在工作的节点，然后在父亲那一层继续寻找兄弟节点
|
||||||
|
next = next.return;
|
||||||
|
|
||||||
|
// 在寻找父亲那一辈的兄弟节点之前，先执行一下 completeWork 方法
|
||||||
|
completeWork(next);
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果执行到这里，说明整个 fiber 树都处理完了
|
||||||
|
// 没有节点需要处理了
|
||||||
|
wip = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
function commitRoot() {}
|
||||||
|
|
||||||
|
export default scheduleUpdateOnFiber;
|
||||||
27
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
27
源码篇/03. 完成workloop方法/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
/**
|
||||||
|
* 不同类型的 fiber 对象，有不同的 tag 值
|
||||||
|
*/
|
||||||
|
export const FunctionComponent = 0; // 函数组件
|
||||||
|
export const ClassComponent = 1; // 类组件
|
||||||
|
export const IndeterminateComponent = 2; // 初始化的时候不知道是函数组件还是类组件
|
||||||
|
export const HostRoot = 3; // Root Fiber 可以理解为根元素 ， 通过reactDom.render()产生的根元素
|
||||||
|
export const HostPortal = 4; // 对应 ReactDOM.createPortal 产生的 Portal
|
||||||
|
export const HostComponent = 5; // dom 元素 比如 <div>
|
||||||
|
export const HostText = 6; // 文本节点
|
||||||
|
export const Fragment = 7; // 对应 <React.Fragment>
|
||||||
|
export const Mode = 8; // 对应 <React.StrictMode>
|
||||||
|
export const ContextConsumer = 9; // 对应 <Context.Consumer>
|
||||||
|
export const ContextProvider = 10; // 对应 <Context.Provider>
|
||||||
|
export const ForwardRef = 11; // 对应 React.ForwardRef
|
||||||
|
export const Profiler = 12; // 对应 <Profiler/ >
|
||||||
|
export const SuspenseComponent = 13; // 对应 <Suspense>
|
||||||
|
export const MemoComponent = 14; // 对应 React.memo 返回的组件
|
||||||
|
export const SimpleMemoComponent = 15;
|
||||||
|
export const LazyComponent = 16;
|
||||||
|
export const IncompleteClassComponent = 17;
|
||||||
|
export const DehydratedFragment = 18;
|
||||||
|
export const SuspenseListComponent = 19;
|
||||||
|
export const ScopeComponent = 21;
|
||||||
|
export const OffscreenComponent = 22;
|
||||||
|
export const LegacyHiddenComponent = 23;
|
||||||
|
export const CacheComponent = 24;
|
||||||
41
源码篇/03. 完成workloop方法/react-mini2/src/lib/shared/utils.js
vendored
Normal file
41
源码篇/03. 完成workloop方法/react-mini2/src/lib/shared/utils.js
vendored
Normal file
@ -0,0 +1,41 @@
|
|||||||
|
// 存放工具方法的文件
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 对 fiber 对象要做的操作进行的标记
|
||||||
|
*/
|
||||||
|
|
||||||
|
// 没有任何操作
|
||||||
|
export const NoFlags = 0b00000000000000000000;
|
||||||
|
// 节点新增、插入、移动
|
||||||
|
export const Placement = 0b0000000000000000000010; // 2
|
||||||
|
// 节点更新属性
|
||||||
|
export const Update = 0b0000000000000000000100; // 4
|
||||||
|
// 删除节点
|
||||||
|
export const Deletion = 0b0000000000000000001000; // 8
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为字符串
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isStr(s) {
|
||||||
|
return typeof s === "string";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 fn 是否为函数
|
||||||
|
* @param {*} fn
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isFn(fn) {
|
||||||
|
return typeof fn === "function";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为 undefined
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isUndefined(s) {
|
||||||
|
return s === undefined;
|
||||||
|
}
|
||||||
24
源码篇/03. 完成workloop方法/react-mini2/src/main.jsx
Normal file
24
源码篇/03. 完成workloop方法/react-mini2/src/main.jsx
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
// 引入 React 原生库
|
||||||
|
// import ReactDOM from "react-dom/client";
|
||||||
|
|
||||||
|
// 引入我们自己的库
|
||||||
|
import ReactDOM from "./lib/react-dom/ReactDOM";
|
||||||
|
|
||||||
|
// import App from "./App.jsx";
|
||||||
|
|
||||||
|
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||||
|
|
||||||
|
// root.render(<App />);
|
||||||
|
|
||||||
|
root.render(
|
||||||
|
<div id="oDiv" className="test">
|
||||||
|
<ul>
|
||||||
|
<li>苹果</li>
|
||||||
|
<li>香蕉</li>
|
||||||
|
<li>西瓜</li>
|
||||||
|
</ul>
|
||||||
|
1111
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
|
||||||
|
// root.render(1111);
|
||||||
7
源码篇/03. 完成workloop方法/react-mini2/vite.config.js
Normal file
7
源码篇/03. 完成workloop方法/react-mini2/vite.config.js
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
import { defineConfig } from 'vite'
|
||||||
|
import react from '@vitejs/plugin-react'
|
||||||
|
|
||||||
|
// https://vitejs.dev/config/
|
||||||
|
export default defineConfig({
|
||||||
|
plugins: [react()],
|
||||||
|
})
|
||||||
20
源码篇/04. 创建DOM节点/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/04. 创建DOM节点/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/04. 创建DOM节点/react-mini2/.gitignore
vendored
Normal file
24
源码篇/04. 创建DOM节点/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/04. 创建DOM节点/react-mini2/README.md
Normal file
8
源码篇/04. 创建DOM节点/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/04. 创建DOM节点/react-mini2/index.html
Normal file
13
源码篇/04. 创建DOM节点/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
26
源码篇/04. 创建DOM节点/react-mini2/package.json
Normal file
26
源码篇/04. 创建DOM节点/react-mini2/package.json
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/04. 创建DOM节点/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/04. 创建DOM节点/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/04. 创建DOM节点/react-mini2/public/vite.svg
Normal file
1
源码篇/04. 创建DOM节点/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
19
源码篇/04. 创建DOM节点/react-mini2/src/App.jsx
Normal file
19
源码篇/04. 创建DOM节点/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
function App() {
|
||||||
|
return (
|
||||||
|
<div className="container">
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1</p>
|
||||||
|
<p>2</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3</p>
|
||||||
|
<p>4</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a tes1</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/04. 创建DOM节点/react-mini2/src/assets/react.svg
Normal file
1
源码篇/04. 创建DOM节点/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
50
源码篇/04. 创建DOM节点/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
50
源码篇/04. 创建DOM节点/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
import scheduleUpdateOnFiber from "../reconciler/ReactFiberWorkLoop";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
const fiber = createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
// console.log(fiber);
|
||||||
|
// 到目前为止，我们就创建了第一个 fiber 对象
|
||||||
|
// 但是目前仅仅只有最外层的父元素创建了对应的 fiber 对象
|
||||||
|
scheduleUpdateOnFiber(fiber);
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
// console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
75
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
75
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
@ -0,0 +1,75 @@
|
|||||||
|
import { Placement, isStr, isFn, isUndefined } from "../shared/utils";
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostComponent,
|
||||||
|
HostText,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} vnode 当前的 vnode 节点
|
||||||
|
* @param {*} returnFiber 父 Fiber 节点
|
||||||
|
*/
|
||||||
|
function createFiber(vnode, returnFiber) {
|
||||||
|
const fiber = {
|
||||||
|
// fiber 的类型
|
||||||
|
type: vnode.type,
|
||||||
|
// key
|
||||||
|
key: vnode.key,
|
||||||
|
// props
|
||||||
|
props: vnode.props,
|
||||||
|
// 存储当前的 fiber 对象所对应的 DOM 节点
|
||||||
|
stateNode: null,
|
||||||
|
// 整个 fiber 树是以链表的形式串联起来的，因此需要 child、sibling 之类的
|
||||||
|
// 子 fiber
|
||||||
|
child: null,
|
||||||
|
// 兄弟 fiber
|
||||||
|
sibling: null,
|
||||||
|
// 父 fiber
|
||||||
|
return: returnFiber,
|
||||||
|
// 该 fiber 对象要做的具体操作
|
||||||
|
flags: Placement,
|
||||||
|
// 记录当前节点在当前层级下的位置
|
||||||
|
index: null,
|
||||||
|
// 存储旧的 fiber 对象
|
||||||
|
alternate: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
// 实际上 fiber 对象上面还有一个 tag 值
|
||||||
|
// 这个 tag 值是什么取决于 fiber 的 type 值
|
||||||
|
// 不同的 vnode 类型，type 是有所不同的
|
||||||
|
|
||||||
|
const type = vnode.type; // 先存储一下 type 值，之后不用每次都去获取
|
||||||
|
if (isStr(type)) {
|
||||||
|
// 原生标签
|
||||||
|
fiber.tag = HostComponent;
|
||||||
|
} else if (isFn(type)) {
|
||||||
|
// 注意这里会有两种情况：函数组件和类组件的 type 都是 function
|
||||||
|
// 例如函数组件的 type 值为 f xxx()
|
||||||
|
// 类组件 class XXX，背后仍然是一个函数
|
||||||
|
// 所以我们通过判断 type 是否有 isReactComponent 属性来判断是否为类组件
|
||||||
|
if (type.prototype.isReactComponent) {
|
||||||
|
// 类组件
|
||||||
|
fiber.tag = ClassComponent;
|
||||||
|
} else {
|
||||||
|
// 函数组件
|
||||||
|
fiber.tag = FunctionComponent;
|
||||||
|
}
|
||||||
|
} else if (isUndefined(type)) {
|
||||||
|
// 说明这是一个文本节点
|
||||||
|
fiber.tag = HostText;
|
||||||
|
// 除此之外还需要多做一件事情
|
||||||
|
// 文本节点是没有 props 属性的，我们将手动的给该 fiber 设置一个 props 属性
|
||||||
|
fiber.props = {
|
||||||
|
children: vnode,
|
||||||
|
};
|
||||||
|
} else {
|
||||||
|
// 说明这是一个 Fragment
|
||||||
|
fiber.tag = Fragment;
|
||||||
|
}
|
||||||
|
|
||||||
|
return fiber;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default createFiber;
|
||||||
42
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
42
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
@ -0,0 +1,42 @@
|
|||||||
|
// 在 beginWork 中，主要就是根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostText,
|
||||||
|
HostComponent,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
import {
|
||||||
|
updateHostComponent,
|
||||||
|
updateHostTextComponent,
|
||||||
|
} from "./ReactFiberReconciler";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
* @param {*} wip
|
||||||
|
*/
|
||||||
|
function beginWork(wip) {
|
||||||
|
const tag = wip.tag;
|
||||||
|
|
||||||
|
switch (tag) {
|
||||||
|
case HostComponent: {
|
||||||
|
updateHostComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case FunctionComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case ClassComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case HostText: {
|
||||||
|
updateHostTextComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Fragment: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export default beginWork;
|
||||||
23
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
23
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
@ -0,0 +1,23 @@
|
|||||||
|
import { updateNode } from "../shared/utils.js";
|
||||||
|
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} wip 需要处理的 fiber 对象节点
|
||||||
|
* 注意这个 fiber 节点已经能够确定的是一个 HostComponent
|
||||||
|
*/
|
||||||
|
export function updateHostComponent(wip) {
|
||||||
|
// 1. 创建真实的 DOM 节点对象
|
||||||
|
if (!wip.stateNode) {
|
||||||
|
// 进入此 if，说明当前的 fiber 节点没有创建过真实的 DOM 节点
|
||||||
|
wip.stateNode = document.createElement(wip.type);
|
||||||
|
console.log(wip.stateNode, "更新属性前");
|
||||||
|
// 接下来我们需要更新节点上的属性
|
||||||
|
updateNode(wip.stateNode, {}, wip.props);
|
||||||
|
console.log(wip.stateNode, "更新属性后");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export function updateHostTextComponent(wip) {
|
||||||
|
console.log(wip, "hosttext");
|
||||||
|
wip.stateNode = document.createTextNode(wip.props.children);
|
||||||
|
}
|
||||||
82
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
82
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
@ -0,0 +1,82 @@
|
|||||||
|
// 该文件负责整个 React 的一个执行流行
|
||||||
|
import beginWork from "./ReactFiberBeginWork";
|
||||||
|
|
||||||
|
// wip 的英语全称为 work in progress，表示正在进行的工作
|
||||||
|
// 我们使用这个变量来保存当前正在进行的工作 fiber 对象
|
||||||
|
let wip = null;
|
||||||
|
|
||||||
|
// 从名字上也可以看出，这是保存当前根节点的 fiber 对象
|
||||||
|
let wipRoot = null;
|
||||||
|
|
||||||
|
function scheduleUpdateOnFiber(fiber) {
|
||||||
|
wip = fiber;
|
||||||
|
wipRoot = fiber;
|
||||||
|
|
||||||
|
// 目前我们先使用 requestIdleCallback 来进行调用
|
||||||
|
// 后期使用 scheduler 包来进行调用
|
||||||
|
// 当浏览器的每一帧有空闲时间的时候，就会执行 workloop 函数
|
||||||
|
requestIdleCallback(workloop);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数会在每一帧有剩余时间的时候执行
|
||||||
|
*/
|
||||||
|
function workloop(deadline) {
|
||||||
|
while (wip && deadline.timeRemaining() > 0) {
|
||||||
|
// 进入此循环，说明有需要进行处理的 fiber 节点
|
||||||
|
// 并且目前也有时间来处理
|
||||||
|
performUnitOfWork(); // 该方法负责处理一个 fiber 节点
|
||||||
|
}
|
||||||
|
|
||||||
|
// 代码来这里，说明要么是没时间，这个我们不需要管
|
||||||
|
// 还有一种情况，就是整个 fiber 树都处理完了
|
||||||
|
if (!wip) {
|
||||||
|
// 说明整个 fiber 树都处理完了
|
||||||
|
// 我们需要将 wipRoot 提交到 DOM 节点上
|
||||||
|
commitRoot();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数主要负责处理一个 fiber 节点
|
||||||
|
* 有下面的事情要做：
|
||||||
|
* 1. 处理当前的 fiber 对象
|
||||||
|
* 2. 通过深度优先遍历子节点，生成子节点的 fiber 对象，然后继续处理
|
||||||
|
* 3. 提交副作用
|
||||||
|
* 4. 进行渲染
|
||||||
|
*/
|
||||||
|
function performUnitOfWork() {
|
||||||
|
beginWork(wip); // 处理当前的 fiber 对象
|
||||||
|
|
||||||
|
// 如果有子节点，将 wip 更新为子节点
|
||||||
|
if (wip.child) {
|
||||||
|
wip = wip.child;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
completeWork(wip);
|
||||||
|
|
||||||
|
// 如果没有子节点，就需要找到兄弟节点
|
||||||
|
let next = wip; // 先缓存一下当前的 wip
|
||||||
|
while (next) {
|
||||||
|
if (next.sibling) {
|
||||||
|
wip = next.sibling;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果没有进入上面的 if，说明当前节点后面已经没有兄弟节点了
|
||||||
|
// 那么就需要将父节点设置为当前正在工作的节点，然后在父亲那一层继续寻找兄弟节点
|
||||||
|
next = next.return;
|
||||||
|
|
||||||
|
// 在寻找父亲那一辈的兄弟节点之前，先执行一下 completeWork 方法
|
||||||
|
completeWork(next);
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果执行到这里，说明整个 fiber 树都处理完了
|
||||||
|
// 没有节点需要处理了
|
||||||
|
wip = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
function commitRoot() {}
|
||||||
|
|
||||||
|
export default scheduleUpdateOnFiber;
|
||||||
27
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
27
源码篇/04. 创建DOM节点/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
/**
|
||||||
|
* 不同类型的 fiber 对象，有不同的 tag 值
|
||||||
|
*/
|
||||||
|
export const FunctionComponent = 0; // 函数组件
|
||||||
|
export const ClassComponent = 1; // 类组件
|
||||||
|
export const IndeterminateComponent = 2; // 初始化的时候不知道是函数组件还是类组件
|
||||||
|
export const HostRoot = 3; // Root Fiber 可以理解为根元素 ， 通过reactDom.render()产生的根元素
|
||||||
|
export const HostPortal = 4; // 对应 ReactDOM.createPortal 产生的 Portal
|
||||||
|
export const HostComponent = 5; // dom 元素 比如 <div>
|
||||||
|
export const HostText = 6; // 文本节点
|
||||||
|
export const Fragment = 7; // 对应 <React.Fragment>
|
||||||
|
export const Mode = 8; // 对应 <React.StrictMode>
|
||||||
|
export const ContextConsumer = 9; // 对应 <Context.Consumer>
|
||||||
|
export const ContextProvider = 10; // 对应 <Context.Provider>
|
||||||
|
export const ForwardRef = 11; // 对应 React.ForwardRef
|
||||||
|
export const Profiler = 12; // 对应 <Profiler/ >
|
||||||
|
export const SuspenseComponent = 13; // 对应 <Suspense>
|
||||||
|
export const MemoComponent = 14; // 对应 React.memo 返回的组件
|
||||||
|
export const SimpleMemoComponent = 15;
|
||||||
|
export const LazyComponent = 16;
|
||||||
|
export const IncompleteClassComponent = 17;
|
||||||
|
export const DehydratedFragment = 18;
|
||||||
|
export const SuspenseListComponent = 19;
|
||||||
|
export const ScopeComponent = 21;
|
||||||
|
export const OffscreenComponent = 22;
|
||||||
|
export const LegacyHiddenComponent = 23;
|
||||||
|
export const CacheComponent = 24;
|
||||||
108
源码篇/04. 创建DOM节点/react-mini2/src/lib/shared/utils.js
vendored
Normal file
108
源码篇/04. 创建DOM节点/react-mini2/src/lib/shared/utils.js
vendored
Normal file
@ -0,0 +1,108 @@
|
|||||||
|
// 存放工具方法的文件
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 对 fiber 对象要做的操作进行的标记
|
||||||
|
*/
|
||||||
|
|
||||||
|
// 没有任何操作
|
||||||
|
export const NoFlags = 0b00000000000000000000;
|
||||||
|
// 节点新增、插入、移动
|
||||||
|
export const Placement = 0b0000000000000000000010; // 2
|
||||||
|
// 节点更新属性
|
||||||
|
export const Update = 0b0000000000000000000100; // 4
|
||||||
|
// 删除节点
|
||||||
|
export const Deletion = 0b0000000000000000001000; // 8
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为字符串
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isStr(s) {
|
||||||
|
return typeof s === "string";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 fn 是否为函数
|
||||||
|
* @param {*} fn
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isFn(fn) {
|
||||||
|
return typeof fn === "function";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为 undefined
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isUndefined(s) {
|
||||||
|
return s === undefined;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法主要负责更新 DOM 节点上的属性
|
||||||
|
* @param {*} node 真实的 DOM 节点
|
||||||
|
* @param {*} prevVal 旧值
|
||||||
|
* @param {*} nextVal 新值
|
||||||
|
*/
|
||||||
|
export function updateNode(node, prevVal, nextVal) {
|
||||||
|
// 这里其实要做的事情就分为两个部分：
|
||||||
|
// 1. 对旧值的处理
|
||||||
|
// 2. 对新值的处理
|
||||||
|
|
||||||
|
// 步骤一：对旧值进行处理
|
||||||
|
Object.keys(prevVal).forEach((k) => {
|
||||||
|
// 拿到的 k 就有不同的情况
|
||||||
|
if (k === "children") {
|
||||||
|
// 这里我们需要判断一下 children 是否是字符串
|
||||||
|
// 如果是字符串，说明是文本节点，我们需要将其设置为空字符串
|
||||||
|
if (isStr(prevVal[k])) {
|
||||||
|
node.textContent = "";
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定的事件
|
||||||
|
// 那么我就需要将你这个旧值移除掉
|
||||||
|
|
||||||
|
// 首先获取到事件名
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
// 需要注意，如果是 change 事件，那么背后绑定的是 input 事件
|
||||||
|
// 这里我们需要做一下处理
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
// 移除事件
|
||||||
|
node.removeEventListener(eventName, prevVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明就是普通的属性
|
||||||
|
// 例如 id、className 之类的
|
||||||
|
// 这里不能无脑的直接去除，应该检查一下新值中是否还有这个属性
|
||||||
|
// 如果没有，我们需要将其移除掉
|
||||||
|
if (!(k in nextVal)) {
|
||||||
|
node[k] = "";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// 步骤二：对新值进行处理，流程基本和上面一样，只不过是反着操作
|
||||||
|
Object.keys(nextVal).forEach((k) => {
|
||||||
|
if (k === "children") {
|
||||||
|
// 需要判断是否是文本节点
|
||||||
|
if (isStr(nextVal[k])) {
|
||||||
|
node.textContent = nextVal[k];
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定事件
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
|
||||||
|
node.addEventListener(eventName, nextVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明是普通的属性
|
||||||
|
node[k] = nextVal[k];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
26
源码篇/04. 创建DOM节点/react-mini2/src/main.jsx
Normal file
26
源码篇/04. 创建DOM节点/react-mini2/src/main.jsx
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
// 引入 React 原生库
|
||||||
|
// import ReactDOM from "react-dom/client";
|
||||||
|
|
||||||
|
// 引入我们自己的库
|
||||||
|
import ReactDOM from "./lib/react-dom/ReactDOM";
|
||||||
|
|
||||||
|
// import App from "./App.jsx";
|
||||||
|
|
||||||
|
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||||
|
|
||||||
|
// root.render(<App />);
|
||||||
|
|
||||||
|
function test() {}
|
||||||
|
|
||||||
|
root.render(
|
||||||
|
<div id="oDiv" className="test" onChange={test}>
|
||||||
|
<ul>
|
||||||
|
<li>苹果</li>
|
||||||
|
<li>香蕉</li>
|
||||||
|
<li>西瓜</li>
|
||||||
|
</ul>
|
||||||
|
1111
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
|
||||||
|
// root.render(1111);
|
||||||
7
源码篇/04. 创建DOM节点/react-mini2/vite.config.js
Normal file
7
源码篇/04. 创建DOM节点/react-mini2/vite.config.js
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
import { defineConfig } from 'vite'
|
||||||
|
import react from '@vitejs/plugin-react'
|
||||||
|
|
||||||
|
// https://vitejs.dev/config/
|
||||||
|
export default defineConfig({
|
||||||
|
plugins: [react()],
|
||||||
|
})
|
||||||
20
源码篇/05. 生成Fiber链表/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/05. 生成Fiber链表/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/05. 生成Fiber链表/react-mini2/.gitignore
vendored
Normal file
24
源码篇/05. 生成Fiber链表/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/05. 生成Fiber链表/react-mini2/README.md
Normal file
8
源码篇/05. 生成Fiber链表/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/05. 生成Fiber链表/react-mini2/index.html
Normal file
13
源码篇/05. 生成Fiber链表/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
26
源码篇/05. 生成Fiber链表/react-mini2/package.json
Normal file
26
源码篇/05. 生成Fiber链表/react-mini2/package.json
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/05. 生成Fiber链表/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/05. 生成Fiber链表/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/05. 生成Fiber链表/react-mini2/public/vite.svg
Normal file
1
源码篇/05. 生成Fiber链表/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
19
源码篇/05. 生成Fiber链表/react-mini2/src/App.jsx
Normal file
19
源码篇/05. 生成Fiber链表/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
function App() {
|
||||||
|
return (
|
||||||
|
<div className="container">
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1</p>
|
||||||
|
<p>2</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3</p>
|
||||||
|
<p>4</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a tes1</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/05. 生成Fiber链表/react-mini2/src/assets/react.svg
Normal file
1
源码篇/05. 生成Fiber链表/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
50
源码篇/05. 生成Fiber链表/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
50
源码篇/05. 生成Fiber链表/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
import scheduleUpdateOnFiber from "../reconciler/ReactFiberWorkLoop";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
const fiber = createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
// console.log(fiber);
|
||||||
|
// 到目前为止，我们就创建了第一个 fiber 对象
|
||||||
|
// 但是目前仅仅只有最外层的父元素创建了对应的 fiber 对象
|
||||||
|
scheduleUpdateOnFiber(fiber);
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
// console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
100
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactChildFiber.js
vendored
Normal file
100
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactChildFiber.js
vendored
Normal file
@ -0,0 +1,100 @@
|
|||||||
|
import { isStr, isArray } from "../shared/utils";
|
||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法是用来协调子节点的，这里就会涉及到有名的 diff 算法
|
||||||
|
* @param {*} returnFiber 因为你是处理子节点，因此传入的这个 fiber 就会成为父 fiber
|
||||||
|
* @param {*} children 子节点的 vnode 数组
|
||||||
|
*/
|
||||||
|
export function reconcileChildren(returnFiber, children) {
|
||||||
|
// 如果 children 是一个字符串，那么说明这是一个文本节点
|
||||||
|
// 那么这个文本节点我们已经在 updateNode 方法中处理过了，所以这里就不需要再处理了
|
||||||
|
if (isStr(children)) return;
|
||||||
|
|
||||||
|
// 接下来需要做一些准备工作
|
||||||
|
// 如果只有一个子节点，那么 children 就是一个 vnode 对象
|
||||||
|
// 如果有多个子节点，那么 children 就是一个 vnode 数组
|
||||||
|
// 所以我们这一步，就是为了将 children 统一都转为数组，方便我们后续的处理
|
||||||
|
const newChildren = isArray(children) ? children : [children];
|
||||||
|
// 第二个准备工作：我们需要声明一些变量
|
||||||
|
let previousNewFiber = null; // 上一个 fiber 对象
|
||||||
|
let oldFiber = returnFiber.alternate?.child; // 上一个 fiber 对象对应的旧 fiber 对象
|
||||||
|
let i = 0; // 记录 children 数组的索引（下标）
|
||||||
|
let lastPlacedIndex = 0; // 上一次 DOM 节点插入的最远位置
|
||||||
|
// 是否需要追踪副作用，该变量是一个布尔值
|
||||||
|
// true 代表组件更新
|
||||||
|
// false 代表组件初次渲染
|
||||||
|
let shouldTrackSideEffects = !!returnFiber.alternate; // 是否需要追踪副作用
|
||||||
|
|
||||||
|
// 第一轮遍历，会尝试复用节点
|
||||||
|
// 复用节点意味着你首先得有这些节点，才能说能不能复用的问题
|
||||||
|
for (; oldFiber && i < newChildren.length; i++) {
|
||||||
|
// 第一次是不会进入到这个循环的，因为一开始压根儿没有 oldFiber
|
||||||
|
}
|
||||||
|
|
||||||
|
// 从上面的 for 循环出来，有两种情况
|
||||||
|
// 1. oldFiber 为 null，说明是初次渲染
|
||||||
|
// 2. i === newChildren.length 说明是更新
|
||||||
|
if (i === newChildren.length) {
|
||||||
|
// 如果还剩余有旧的 fiber 节点，那么就需要将其删除掉
|
||||||
|
}
|
||||||
|
|
||||||
|
// 接下来就是我们初次渲染的情况
|
||||||
|
if (!oldFiber) {
|
||||||
|
// 说明是初次渲染
|
||||||
|
// 那么我们需要将 newChildren 数组中的每一个元素都生成一个 fiber 对象
|
||||||
|
// 然后将这些 fiber 对象串联起来
|
||||||
|
for (; i < newChildren.length; i++) {
|
||||||
|
const newChildVnode = newChildren[i];
|
||||||
|
|
||||||
|
// 那么我们这一次就不处理，直接跳到下一次
|
||||||
|
if (newChildVnode === null) continue;
|
||||||
|
|
||||||
|
// 下一步就应该根据 vnode 生成新的 fiber
|
||||||
|
const newFiber = createFiber(newChildVnode, returnFiber);
|
||||||
|
|
||||||
|
// 接下来我们需要去更新 lastPlacedIndex 这个值
|
||||||
|
lastPlacedIndex = placeChild(
|
||||||
|
newFiber,
|
||||||
|
lastPlacedIndex,
|
||||||
|
i,
|
||||||
|
shouldTrackSideEffects
|
||||||
|
);
|
||||||
|
|
||||||
|
// 接下来非常重要了，接下来我们要将新生成的 fiber 加入到 fiber 链表里面去
|
||||||
|
if (previousNewFiber === null) {
|
||||||
|
// 说明你是第一个子节点
|
||||||
|
returnFiber.child = newFiber;
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明当前生成的 fiber 节点并非父 fiber 的第一个节点
|
||||||
|
previousNewFiber.sibling = newFiber;
|
||||||
|
}
|
||||||
|
// 将 previousNewFiber 设置为 newFiber
|
||||||
|
// 从而将当前 fiber 更新为上一个 fiber
|
||||||
|
previousNewFiber = newFiber;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法专门用于更新 lastPlacedIndex
|
||||||
|
* @param {*} newFiber 上面刚刚创建的新的 fiber 对象
|
||||||
|
* @param {*} lastPlacedIndex 上一次的 lastPlacedIndex，也就是上一次插入的最远位置，初始值是 0
|
||||||
|
* @param {*} newIndex 当前的下标，初始值也是 0
|
||||||
|
* @param {*} shouldTrackSideEffects // 用于判断 returnFiber 是初次渲染还是更新
|
||||||
|
*/
|
||||||
|
function placeChild(
|
||||||
|
newFiber,
|
||||||
|
lastPlacedIndex,
|
||||||
|
newIndex,
|
||||||
|
shouldTrackSideEffects
|
||||||
|
) {
|
||||||
|
// 更新 fiber 对象上面的 index
|
||||||
|
// fiber 对象上面的 index 记录当前 fiber 节点在当前层级下的位置
|
||||||
|
newFiber.index = newIndex;
|
||||||
|
if (!shouldTrackSideEffects) {
|
||||||
|
// 进入此 if，说明当前是初次渲染
|
||||||
|
// 那么我们就不需要记录节点位置了
|
||||||
|
return lastPlacedIndex;
|
||||||
|
}
|
||||||
|
}
|
||||||
75
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
75
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
@ -0,0 +1,75 @@
|
|||||||
|
import { Placement, isStr, isFn, isUndefined } from "../shared/utils";
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostComponent,
|
||||||
|
HostText,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} vnode 当前的 vnode 节点
|
||||||
|
* @param {*} returnFiber 父 Fiber 节点
|
||||||
|
*/
|
||||||
|
function createFiber(vnode, returnFiber) {
|
||||||
|
const fiber = {
|
||||||
|
// fiber 的类型
|
||||||
|
type: vnode.type,
|
||||||
|
// key
|
||||||
|
key: vnode.key,
|
||||||
|
// props
|
||||||
|
props: vnode.props,
|
||||||
|
// 存储当前的 fiber 对象所对应的 DOM 节点
|
||||||
|
stateNode: null,
|
||||||
|
// 整个 fiber 树是以链表的形式串联起来的，因此需要 child、sibling 之类的
|
||||||
|
// 子 fiber
|
||||||
|
child: null,
|
||||||
|
// 兄弟 fiber
|
||||||
|
sibling: null,
|
||||||
|
// 父 fiber
|
||||||
|
return: returnFiber,
|
||||||
|
// 该 fiber 对象要做的具体操作
|
||||||
|
flags: Placement,
|
||||||
|
// 记录当前节点在当前层级下的位置
|
||||||
|
index: null,
|
||||||
|
// 存储旧的 fiber 对象
|
||||||
|
alternate: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
// 实际上 fiber 对象上面还有一个 tag 值
|
||||||
|
// 这个 tag 值是什么取决于 fiber 的 type 值
|
||||||
|
// 不同的 vnode 类型，type 是有所不同的
|
||||||
|
|
||||||
|
const type = vnode.type; // 先存储一下 type 值，之后不用每次都去获取
|
||||||
|
if (isStr(type)) {
|
||||||
|
// 原生标签
|
||||||
|
fiber.tag = HostComponent;
|
||||||
|
} else if (isFn(type)) {
|
||||||
|
// 注意这里会有两种情况：函数组件和类组件的 type 都是 function
|
||||||
|
// 例如函数组件的 type 值为 f xxx()
|
||||||
|
// 类组件 class XXX，背后仍然是一个函数
|
||||||
|
// 所以我们通过判断 type 是否有 isReactComponent 属性来判断是否为类组件
|
||||||
|
if (type.prototype.isReactComponent) {
|
||||||
|
// 类组件
|
||||||
|
fiber.tag = ClassComponent;
|
||||||
|
} else {
|
||||||
|
// 函数组件
|
||||||
|
fiber.tag = FunctionComponent;
|
||||||
|
}
|
||||||
|
} else if (isUndefined(type)) {
|
||||||
|
// 说明这是一个文本节点
|
||||||
|
fiber.tag = HostText;
|
||||||
|
// 除此之外还需要多做一件事情
|
||||||
|
// 文本节点是没有 props 属性的，我们将手动的给该 fiber 设置一个 props 属性
|
||||||
|
fiber.props = {
|
||||||
|
children: vnode,
|
||||||
|
};
|
||||||
|
} else {
|
||||||
|
// 说明这是一个 Fragment
|
||||||
|
fiber.tag = Fragment;
|
||||||
|
}
|
||||||
|
|
||||||
|
return fiber;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default createFiber;
|
||||||
42
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
42
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
@ -0,0 +1,42 @@
|
|||||||
|
// 在 beginWork 中，主要就是根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostText,
|
||||||
|
HostComponent,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
import {
|
||||||
|
updateHostComponent,
|
||||||
|
updateHostTextComponent,
|
||||||
|
} from "./ReactFiberReconciler";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
* @param {*} wip
|
||||||
|
*/
|
||||||
|
function beginWork(wip) {
|
||||||
|
const tag = wip.tag;
|
||||||
|
|
||||||
|
switch (tag) {
|
||||||
|
case HostComponent: {
|
||||||
|
updateHostComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case FunctionComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case ClassComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case HostText: {
|
||||||
|
updateHostTextComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Fragment: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export default beginWork;
|
||||||
26
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
26
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
import { updateNode } from "../shared/utils.js";
|
||||||
|
import { reconcileChildren } from "./ReactChildFiber.js";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} wip 需要处理的 fiber 对象节点
|
||||||
|
* 注意这个 fiber 节点已经能够确定的是一个 HostComponent
|
||||||
|
*/
|
||||||
|
export function updateHostComponent(wip) {
|
||||||
|
// 1. 创建真实的 DOM 节点对象
|
||||||
|
if (!wip.stateNode) {
|
||||||
|
// 进入此 if，说明当前的 fiber 节点没有创建过真实的 DOM 节点
|
||||||
|
wip.stateNode = document.createElement(wip.type);
|
||||||
|
// 接下来我们需要更新节点上的属性
|
||||||
|
updateNode(wip.stateNode, {}, wip.props);
|
||||||
|
|
||||||
|
// 到目前为止，说明当前的 fiber 节点所对应的 stateNode 已经有值了，也就是说有对应的 DOM 了
|
||||||
|
// 因此接下来的下一步，我们就应该处理子节点了
|
||||||
|
reconcileChildren(wip, wip.props.children);
|
||||||
|
// 上一步执行完毕后，说明已经处理完了所有的子节点 vnode，fiber 的链表也就形成了
|
||||||
|
console.log(wip, "wip");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export function updateHostTextComponent(wip) {
|
||||||
|
wip.stateNode = document.createTextNode(wip.props.children);
|
||||||
|
}
|
||||||
82
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
82
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
@ -0,0 +1,82 @@
|
|||||||
|
// 该文件负责整个 React 的一个执行流行
|
||||||
|
import beginWork from "./ReactFiberBeginWork";
|
||||||
|
|
||||||
|
// wip 的英语全称为 work in progress，表示正在进行的工作
|
||||||
|
// 我们使用这个变量来保存当前正在进行的工作 fiber 对象
|
||||||
|
let wip = null;
|
||||||
|
|
||||||
|
// 从名字上也可以看出，这是保存当前根节点的 fiber 对象
|
||||||
|
let wipRoot = null;
|
||||||
|
|
||||||
|
function scheduleUpdateOnFiber(fiber) {
|
||||||
|
wip = fiber;
|
||||||
|
wipRoot = fiber;
|
||||||
|
|
||||||
|
// 目前我们先使用 requestIdleCallback 来进行调用
|
||||||
|
// 后期使用 scheduler 包来进行调用
|
||||||
|
// 当浏览器的每一帧有空闲时间的时候，就会执行 workloop 函数
|
||||||
|
requestIdleCallback(workloop);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数会在每一帧有剩余时间的时候执行
|
||||||
|
*/
|
||||||
|
function workloop(deadline) {
|
||||||
|
while (wip && deadline.timeRemaining() > 0) {
|
||||||
|
// 进入此循环，说明有需要进行处理的 fiber 节点
|
||||||
|
// 并且目前也有时间来处理
|
||||||
|
performUnitOfWork(); // 该方法负责处理一个 fiber 节点
|
||||||
|
}
|
||||||
|
|
||||||
|
// 代码来这里，说明要么是没时间，这个我们不需要管
|
||||||
|
// 还有一种情况，就是整个 fiber 树都处理完了
|
||||||
|
if (!wip) {
|
||||||
|
// 说明整个 fiber 树都处理完了
|
||||||
|
// 我们需要将 wipRoot 提交到 DOM 节点上
|
||||||
|
commitRoot();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数主要负责处理一个 fiber 节点
|
||||||
|
* 有下面的事情要做：
|
||||||
|
* 1. 处理当前的 fiber 对象
|
||||||
|
* 2. 通过深度优先遍历子节点，生成子节点的 fiber 对象，然后继续处理
|
||||||
|
* 3. 提交副作用
|
||||||
|
* 4. 进行渲染
|
||||||
|
*/
|
||||||
|
function performUnitOfWork() {
|
||||||
|
beginWork(wip); // 处理当前的 fiber 对象
|
||||||
|
|
||||||
|
// 如果有子节点，将 wip 更新为子节点
|
||||||
|
if (wip.child) {
|
||||||
|
wip = wip.child;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
completeWork(wip);
|
||||||
|
|
||||||
|
// 如果没有子节点，就需要找到兄弟节点
|
||||||
|
let next = wip; // 先缓存一下当前的 wip
|
||||||
|
while (next) {
|
||||||
|
if (next.sibling) {
|
||||||
|
wip = next.sibling;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果没有进入上面的 if，说明当前节点后面已经没有兄弟节点了
|
||||||
|
// 那么就需要将父节点设置为当前正在工作的节点，然后在父亲那一层继续寻找兄弟节点
|
||||||
|
next = next.return;
|
||||||
|
|
||||||
|
// 在寻找父亲那一辈的兄弟节点之前，先执行一下 completeWork 方法
|
||||||
|
completeWork(next);
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果执行到这里，说明整个 fiber 树都处理完了
|
||||||
|
// 没有节点需要处理了
|
||||||
|
wip = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
function commitRoot() {}
|
||||||
|
|
||||||
|
export default scheduleUpdateOnFiber;
|
||||||
27
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
27
源码篇/05. 生成Fiber链表/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
/**
|
||||||
|
* 不同类型的 fiber 对象，有不同的 tag 值
|
||||||
|
*/
|
||||||
|
export const FunctionComponent = 0; // 函数组件
|
||||||
|
export const ClassComponent = 1; // 类组件
|
||||||
|
export const IndeterminateComponent = 2; // 初始化的时候不知道是函数组件还是类组件
|
||||||
|
export const HostRoot = 3; // Root Fiber 可以理解为根元素 ， 通过reactDom.render()产生的根元素
|
||||||
|
export const HostPortal = 4; // 对应 ReactDOM.createPortal 产生的 Portal
|
||||||
|
export const HostComponent = 5; // dom 元素 比如 <div>
|
||||||
|
export const HostText = 6; // 文本节点
|
||||||
|
export const Fragment = 7; // 对应 <React.Fragment>
|
||||||
|
export const Mode = 8; // 对应 <React.StrictMode>
|
||||||
|
export const ContextConsumer = 9; // 对应 <Context.Consumer>
|
||||||
|
export const ContextProvider = 10; // 对应 <Context.Provider>
|
||||||
|
export const ForwardRef = 11; // 对应 React.ForwardRef
|
||||||
|
export const Profiler = 12; // 对应 <Profiler/ >
|
||||||
|
export const SuspenseComponent = 13; // 对应 <Suspense>
|
||||||
|
export const MemoComponent = 14; // 对应 React.memo 返回的组件
|
||||||
|
export const SimpleMemoComponent = 15;
|
||||||
|
export const LazyComponent = 16;
|
||||||
|
export const IncompleteClassComponent = 17;
|
||||||
|
export const DehydratedFragment = 18;
|
||||||
|
export const SuspenseListComponent = 19;
|
||||||
|
export const ScopeComponent = 21;
|
||||||
|
export const OffscreenComponent = 22;
|
||||||
|
export const LegacyHiddenComponent = 23;
|
||||||
|
export const CacheComponent = 24;
|
||||||
117
源码篇/05. 生成Fiber链表/react-mini2/src/lib/shared/utils.js
vendored
Normal file
117
源码篇/05. 生成Fiber链表/react-mini2/src/lib/shared/utils.js
vendored
Normal file
@ -0,0 +1,117 @@
|
|||||||
|
// 存放工具方法的文件
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 对 fiber 对象要做的操作进行的标记
|
||||||
|
*/
|
||||||
|
|
||||||
|
// 没有任何操作
|
||||||
|
export const NoFlags = 0b00000000000000000000;
|
||||||
|
// 节点新增、插入、移动
|
||||||
|
export const Placement = 0b0000000000000000000010; // 2
|
||||||
|
// 节点更新属性
|
||||||
|
export const Update = 0b0000000000000000000100; // 4
|
||||||
|
// 删除节点
|
||||||
|
export const Deletion = 0b0000000000000000001000; // 8
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为字符串
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isStr(s) {
|
||||||
|
return typeof s === "string";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 fn 是否为函数
|
||||||
|
* @param {*} fn
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isFn(fn) {
|
||||||
|
return typeof fn === "function";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为 undefined
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isUndefined(s) {
|
||||||
|
return s === undefined;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 arr 是否为数组
|
||||||
|
* @param {*} arr
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isArray(arr) {
|
||||||
|
return Array.isArray(arr);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法主要负责更新 DOM 节点上的属性
|
||||||
|
* @param {*} node 真实的 DOM 节点
|
||||||
|
* @param {*} prevVal 旧值
|
||||||
|
* @param {*} nextVal 新值
|
||||||
|
*/
|
||||||
|
export function updateNode(node, prevVal, nextVal) {
|
||||||
|
// 这里其实要做的事情就分为两个部分：
|
||||||
|
// 1. 对旧值的处理
|
||||||
|
// 2. 对新值的处理
|
||||||
|
|
||||||
|
// 步骤一：对旧值进行处理
|
||||||
|
Object.keys(prevVal).forEach((k) => {
|
||||||
|
// 拿到的 k 就有不同的情况
|
||||||
|
if (k === "children") {
|
||||||
|
// 这里我们需要判断一下 children 是否是字符串
|
||||||
|
// 如果是字符串，说明是文本节点，我们需要将其设置为空字符串
|
||||||
|
if (isStr(prevVal[k])) {
|
||||||
|
node.textContent = "";
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定的事件
|
||||||
|
// 那么我就需要将你这个旧值移除掉
|
||||||
|
|
||||||
|
// 首先获取到事件名
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
// 需要注意，如果是 change 事件，那么背后绑定的是 input 事件
|
||||||
|
// 这里我们需要做一下处理
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
// 移除事件
|
||||||
|
node.removeEventListener(eventName, prevVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明就是普通的属性
|
||||||
|
// 例如 id、className 之类的
|
||||||
|
// 这里不能无脑的直接去除，应该检查一下新值中是否还有这个属性
|
||||||
|
// 如果没有，我们需要将其移除掉
|
||||||
|
if (!(k in nextVal)) {
|
||||||
|
node[k] = "";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// 步骤二：对新值进行处理，流程基本和上面一样，只不过是反着操作
|
||||||
|
Object.keys(nextVal).forEach((k) => {
|
||||||
|
if (k === "children") {
|
||||||
|
// 需要判断是否是文本节点
|
||||||
|
if (isStr(nextVal[k])) {
|
||||||
|
node.textContent = nextVal[k];
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定事件
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
|
||||||
|
node.addEventListener(eventName, nextVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明是普通的属性
|
||||||
|
node[k] = nextVal[k];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
27
源码篇/05. 生成Fiber链表/react-mini2/src/main.jsx
Normal file
27
源码篇/05. 生成Fiber链表/react-mini2/src/main.jsx
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
// 引入 React 原生库
|
||||||
|
// import ReactDOM from "react-dom/client";
|
||||||
|
|
||||||
|
// 引入我们自己的库
|
||||||
|
import ReactDOM from "./lib/react-dom/ReactDOM";
|
||||||
|
|
||||||
|
// import App from "./App.jsx";
|
||||||
|
|
||||||
|
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||||
|
|
||||||
|
// root.render(<App />);
|
||||||
|
|
||||||
|
function test() {}
|
||||||
|
|
||||||
|
root.render(
|
||||||
|
<div id="oDiv" className="test" onChange={test}>
|
||||||
|
<ul>
|
||||||
|
<li>苹果</li>
|
||||||
|
<li>香蕉</li>
|
||||||
|
<li>西瓜</li>
|
||||||
|
</ul>
|
||||||
|
<p>哈哈哈哈</p>
|
||||||
|
{/* 1111 */}
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
|
||||||
|
// root.render(1111);
|
||||||
7
源码篇/05. 生成Fiber链表/react-mini2/vite.config.js
Normal file
7
源码篇/05. 生成Fiber链表/react-mini2/vite.config.js
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
import { defineConfig } from 'vite'
|
||||||
|
import react from '@vitejs/plugin-react'
|
||||||
|
|
||||||
|
// https://vitejs.dev/config/
|
||||||
|
export default defineConfig({
|
||||||
|
plugins: [react()],
|
||||||
|
})
|
||||||
20
源码篇/06. 完成原生标签初次渲染/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/06. 完成原生标签初次渲染/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/06. 完成原生标签初次渲染/react-mini2/.gitignore
vendored
Normal file
24
源码篇/06. 完成原生标签初次渲染/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/06. 完成原生标签初次渲染/react-mini2/README.md
Normal file
8
源码篇/06. 完成原生标签初次渲染/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/06. 完成原生标签初次渲染/react-mini2/index.html
Normal file
13
源码篇/06. 完成原生标签初次渲染/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
26
源码篇/06. 完成原生标签初次渲染/react-mini2/package.json
Normal file
26
源码篇/06. 完成原生标签初次渲染/react-mini2/package.json
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/06. 完成原生标签初次渲染/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/06. 完成原生标签初次渲染/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/06. 完成原生标签初次渲染/react-mini2/public/vite.svg
Normal file
1
源码篇/06. 完成原生标签初次渲染/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
19
源码篇/06. 完成原生标签初次渲染/react-mini2/src/App.jsx
Normal file
19
源码篇/06. 完成原生标签初次渲染/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
function App() {
|
||||||
|
return (
|
||||||
|
<div className="container">
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1</p>
|
||||||
|
<p>2</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3</p>
|
||||||
|
<p>4</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a tes1</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/06. 完成原生标签初次渲染/react-mini2/src/assets/react.svg
Normal file
1
源码篇/06. 完成原生标签初次渲染/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
50
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
50
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
import scheduleUpdateOnFiber from "../reconciler/ReactFiberWorkLoop";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
const fiber = createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
// console.log(fiber);
|
||||||
|
// 到目前为止，我们就创建了第一个 fiber 对象
|
||||||
|
// 但是目前仅仅只有最外层的父元素创建了对应的 fiber 对象
|
||||||
|
scheduleUpdateOnFiber(fiber);
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
// console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
100
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactChildFiber.js
vendored
Normal file
100
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactChildFiber.js
vendored
Normal file
@ -0,0 +1,100 @@
|
|||||||
|
import { isStr, isArray } from "../shared/utils";
|
||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法是用来协调子节点的，这里就会涉及到有名的 diff 算法
|
||||||
|
* @param {*} returnFiber 因为你是处理子节点，因此传入的这个 fiber 就会成为父 fiber
|
||||||
|
* @param {*} children 子节点的 vnode 数组
|
||||||
|
*/
|
||||||
|
export function reconcileChildren(returnFiber, children) {
|
||||||
|
// 如果 children 是一个字符串，那么说明这是一个文本节点
|
||||||
|
// 那么这个文本节点我们已经在 updateNode 方法中处理过了，所以这里就不需要再处理了
|
||||||
|
if (isStr(children)) return;
|
||||||
|
|
||||||
|
// 接下来需要做一些准备工作
|
||||||
|
// 如果只有一个子节点，那么 children 就是一个 vnode 对象
|
||||||
|
// 如果有多个子节点，那么 children 就是一个 vnode 数组
|
||||||
|
// 所以我们这一步，就是为了将 children 统一都转为数组，方便我们后续的处理
|
||||||
|
const newChildren = isArray(children) ? children : [children];
|
||||||
|
// 第二个准备工作：我们需要声明一些变量
|
||||||
|
let previousNewFiber = null; // 上一个 fiber 对象
|
||||||
|
let oldFiber = returnFiber.alternate?.child; // 上一个 fiber 对象对应的旧 fiber 对象
|
||||||
|
let i = 0; // 记录 children 数组的索引（下标）
|
||||||
|
let lastPlacedIndex = 0; // 上一次 DOM 节点插入的最远位置
|
||||||
|
// 是否需要追踪副作用，该变量是一个布尔值
|
||||||
|
// true 代表组件更新
|
||||||
|
// false 代表组件初次渲染
|
||||||
|
let shouldTrackSideEffects = !!returnFiber.alternate; // 是否需要追踪副作用
|
||||||
|
|
||||||
|
// 第一轮遍历，会尝试复用节点
|
||||||
|
// 复用节点意味着你首先得有这些节点，才能说能不能复用的问题
|
||||||
|
for (; oldFiber && i < newChildren.length; i++) {
|
||||||
|
// 第一次是不会进入到这个循环的，因为一开始压根儿没有 oldFiber
|
||||||
|
}
|
||||||
|
|
||||||
|
// 从上面的 for 循环出来，有两种情况
|
||||||
|
// 1. oldFiber 为 null，说明是初次渲染
|
||||||
|
// 2. i === newChildren.length 说明是更新
|
||||||
|
if (i === newChildren.length) {
|
||||||
|
// 如果还剩余有旧的 fiber 节点，那么就需要将其删除掉
|
||||||
|
}
|
||||||
|
|
||||||
|
// 接下来就是我们初次渲染的情况
|
||||||
|
if (!oldFiber) {
|
||||||
|
// 说明是初次渲染
|
||||||
|
// 那么我们需要将 newChildren 数组中的每一个元素都生成一个 fiber 对象
|
||||||
|
// 然后将这些 fiber 对象串联起来
|
||||||
|
for (; i < newChildren.length; i++) {
|
||||||
|
const newChildVnode = newChildren[i];
|
||||||
|
|
||||||
|
// 那么我们这一次就不处理，直接跳到下一次
|
||||||
|
if (newChildVnode === null) continue;
|
||||||
|
|
||||||
|
// 下一步就应该根据 vnode 生成新的 fiber
|
||||||
|
const newFiber = createFiber(newChildVnode, returnFiber);
|
||||||
|
|
||||||
|
// 接下来我们需要去更新 lastPlacedIndex 这个值
|
||||||
|
lastPlacedIndex = placeChild(
|
||||||
|
newFiber,
|
||||||
|
lastPlacedIndex,
|
||||||
|
i,
|
||||||
|
shouldTrackSideEffects
|
||||||
|
);
|
||||||
|
|
||||||
|
// 接下来非常重要了，接下来我们要将新生成的 fiber 加入到 fiber 链表里面去
|
||||||
|
if (previousNewFiber === null) {
|
||||||
|
// 说明你是第一个子节点
|
||||||
|
returnFiber.child = newFiber;
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明当前生成的 fiber 节点并非父 fiber 的第一个节点
|
||||||
|
previousNewFiber.sibling = newFiber;
|
||||||
|
}
|
||||||
|
// 将 previousNewFiber 设置为 newFiber
|
||||||
|
// 从而将当前 fiber 更新为上一个 fiber
|
||||||
|
previousNewFiber = newFiber;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法专门用于更新 lastPlacedIndex
|
||||||
|
* @param {*} newFiber 上面刚刚创建的新的 fiber 对象
|
||||||
|
* @param {*} lastPlacedIndex 上一次的 lastPlacedIndex，也就是上一次插入的最远位置，初始值是 0
|
||||||
|
* @param {*} newIndex 当前的下标，初始值也是 0
|
||||||
|
* @param {*} shouldTrackSideEffects // 用于判断 returnFiber 是初次渲染还是更新
|
||||||
|
*/
|
||||||
|
function placeChild(
|
||||||
|
newFiber,
|
||||||
|
lastPlacedIndex,
|
||||||
|
newIndex,
|
||||||
|
shouldTrackSideEffects
|
||||||
|
) {
|
||||||
|
// 更新 fiber 对象上面的 index
|
||||||
|
// fiber 对象上面的 index 记录当前 fiber 节点在当前层级下的位置
|
||||||
|
newFiber.index = newIndex;
|
||||||
|
if (!shouldTrackSideEffects) {
|
||||||
|
// 进入此 if，说明当前是初次渲染
|
||||||
|
// 那么我们就不需要记录节点位置了
|
||||||
|
return lastPlacedIndex;
|
||||||
|
}
|
||||||
|
}
|
||||||
75
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
75
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiber.js
vendored
Normal file
@ -0,0 +1,75 @@
|
|||||||
|
import { Placement, isStr, isFn, isUndefined } from "../shared/utils";
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostComponent,
|
||||||
|
HostText,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} vnode 当前的 vnode 节点
|
||||||
|
* @param {*} returnFiber 父 Fiber 节点
|
||||||
|
*/
|
||||||
|
function createFiber(vnode, returnFiber) {
|
||||||
|
const fiber = {
|
||||||
|
// fiber 的类型
|
||||||
|
type: vnode.type,
|
||||||
|
// key
|
||||||
|
key: vnode.key,
|
||||||
|
// props
|
||||||
|
props: vnode.props,
|
||||||
|
// 存储当前的 fiber 对象所对应的 DOM 节点
|
||||||
|
stateNode: null,
|
||||||
|
// 整个 fiber 树是以链表的形式串联起来的，因此需要 child、sibling 之类的
|
||||||
|
// 子 fiber
|
||||||
|
child: null,
|
||||||
|
// 兄弟 fiber
|
||||||
|
sibling: null,
|
||||||
|
// 父 fiber
|
||||||
|
return: returnFiber,
|
||||||
|
// 该 fiber 对象要做的具体操作
|
||||||
|
flags: Placement,
|
||||||
|
// 记录当前节点在当前层级下的位置
|
||||||
|
index: null,
|
||||||
|
// 存储旧的 fiber 对象
|
||||||
|
alternate: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
// 实际上 fiber 对象上面还有一个 tag 值
|
||||||
|
// 这个 tag 值是什么取决于 fiber 的 type 值
|
||||||
|
// 不同的 vnode 类型，type 是有所不同的
|
||||||
|
|
||||||
|
const type = vnode.type; // 先存储一下 type 值，之后不用每次都去获取
|
||||||
|
if (isStr(type)) {
|
||||||
|
// 原生标签
|
||||||
|
fiber.tag = HostComponent;
|
||||||
|
} else if (isFn(type)) {
|
||||||
|
// 注意这里会有两种情况：函数组件和类组件的 type 都是 function
|
||||||
|
// 例如函数组件的 type 值为 f xxx()
|
||||||
|
// 类组件 class XXX，背后仍然是一个函数
|
||||||
|
// 所以我们通过判断 type 是否有 isReactComponent 属性来判断是否为类组件
|
||||||
|
if (type.prototype.isReactComponent) {
|
||||||
|
// 类组件
|
||||||
|
fiber.tag = ClassComponent;
|
||||||
|
} else {
|
||||||
|
// 函数组件
|
||||||
|
fiber.tag = FunctionComponent;
|
||||||
|
}
|
||||||
|
} else if (isUndefined(type)) {
|
||||||
|
// 说明这是一个文本节点
|
||||||
|
fiber.tag = HostText;
|
||||||
|
// 除此之外还需要多做一件事情
|
||||||
|
// 文本节点是没有 props 属性的，我们将手动的给该 fiber 设置一个 props 属性
|
||||||
|
fiber.props = {
|
||||||
|
children: vnode,
|
||||||
|
};
|
||||||
|
} else {
|
||||||
|
// 说明这是一个 Fragment
|
||||||
|
fiber.tag = Fragment;
|
||||||
|
}
|
||||||
|
|
||||||
|
return fiber;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default createFiber;
|
||||||
42
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
42
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberBeginWork.js
vendored
Normal file
@ -0,0 +1,42 @@
|
|||||||
|
// 在 beginWork 中，主要就是根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
import {
|
||||||
|
FunctionComponent,
|
||||||
|
ClassComponent,
|
||||||
|
HostText,
|
||||||
|
HostComponent,
|
||||||
|
Fragment,
|
||||||
|
} from "./ReactWorkTags";
|
||||||
|
import {
|
||||||
|
updateHostComponent,
|
||||||
|
updateHostTextComponent,
|
||||||
|
} from "./ReactFiberReconciler";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 根据 fiber 不同的 tag 值，调用不同的方法来处理
|
||||||
|
* @param {*} wip
|
||||||
|
*/
|
||||||
|
function beginWork(wip) {
|
||||||
|
const tag = wip.tag;
|
||||||
|
|
||||||
|
switch (tag) {
|
||||||
|
case HostComponent: {
|
||||||
|
updateHostComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case FunctionComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case ClassComponent: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case HostText: {
|
||||||
|
updateHostTextComponent(wip);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Fragment: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export default beginWork;
|
||||||
35
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberCommitWork.js
vendored
Normal file
35
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberCommitWork.js
vendored
Normal file
@ -0,0 +1,35 @@
|
|||||||
|
function getParentDOM(wip) {
|
||||||
|
let temp = wip;
|
||||||
|
while (temp) {
|
||||||
|
if (temp.stateNode) return temp.stateNode;
|
||||||
|
// 如果没有进入上面的 if，说明当前的 fiber 节点并没有对应的 DOM 对象
|
||||||
|
// 那么就需要继续向上寻找
|
||||||
|
// 那么问题来了，为什么该 fiber 上面没有对应的 DOM 对象呢？
|
||||||
|
// 因为该 fiber 节点可能是一个函数组件或者类组件、Franment
|
||||||
|
temp = temp.return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function commitNode(wip) {
|
||||||
|
// 1. 首先第一步，我们需要获取该 fiber 所对应的父节点的 DOM 对象
|
||||||
|
const parentNodeDOM = getParentDOM(wip.return);
|
||||||
|
// 2. 进行一个 DOM 操作
|
||||||
|
if (wip.stateNode) {
|
||||||
|
parentNodeDOM.appendChild(wip.stateNode);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function commitWorker(wip) {
|
||||||
|
if (!wip) return;
|
||||||
|
|
||||||
|
// 整个 commitWorker 里面的提交分三步走：
|
||||||
|
// 1. 提交自己
|
||||||
|
// 2. 提交子节点
|
||||||
|
// 3. 提交兄弟节点
|
||||||
|
|
||||||
|
commitNode(wip); // 提交自己
|
||||||
|
commitWorker(wip.child); // 提交子节点
|
||||||
|
commitWorker(wip.sibling); // 提交兄弟节点
|
||||||
|
}
|
||||||
|
|
||||||
|
export default commitWorker;
|
||||||
5
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberCompleteWork.js
vendored
Normal file
5
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberCompleteWork.js
vendored
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
function completeWork(wip) {
|
||||||
|
// console.log(wip);
|
||||||
|
}
|
||||||
|
|
||||||
|
export default completeWork;
|
||||||
25
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
25
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberReconciler.js
vendored
Normal file
@ -0,0 +1,25 @@
|
|||||||
|
import { updateNode } from "../shared/utils.js";
|
||||||
|
import { reconcileChildren } from "./ReactChildFiber.js";
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} wip 需要处理的 fiber 对象节点
|
||||||
|
* 注意这个 fiber 节点已经能够确定的是一个 HostComponent
|
||||||
|
*/
|
||||||
|
export function updateHostComponent(wip) {
|
||||||
|
// 1. 创建真实的 DOM 节点对象
|
||||||
|
if (!wip.stateNode) {
|
||||||
|
// 进入此 if，说明当前的 fiber 节点没有创建过真实的 DOM 节点
|
||||||
|
wip.stateNode = document.createElement(wip.type);
|
||||||
|
// 接下来我们需要更新节点上的属性
|
||||||
|
updateNode(wip.stateNode, {}, wip.props);
|
||||||
|
|
||||||
|
// 到目前为止，说明当前的 fiber 节点所对应的 stateNode 已经有值了，也就是说有对应的 DOM 了
|
||||||
|
// 因此接下来的下一步，我们就应该处理子节点了
|
||||||
|
reconcileChildren(wip, wip.props.children);
|
||||||
|
// 上一步执行完毕后，说明已经处理完了所有的子节点 vnode，fiber 的链表也就形成了
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export function updateHostTextComponent(wip) {
|
||||||
|
wip.stateNode = document.createTextNode(wip.props.children);
|
||||||
|
}
|
||||||
92
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
92
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactFiberWorkLoop.js
vendored
Normal file
@ -0,0 +1,92 @@
|
|||||||
|
// 该文件负责整个 React 的一个执行流行
|
||||||
|
import beginWork from "./ReactFiberBeginWork";
|
||||||
|
import completeWork from "./ReactFiberCompleteWork";
|
||||||
|
import commitWorker from "./ReactFiberCommitWork";
|
||||||
|
|
||||||
|
// wip 的英语全称为 work in progress，表示正在进行的工作
|
||||||
|
// 我们使用这个变量来保存当前正在进行的工作 fiber 对象
|
||||||
|
let wip = null;
|
||||||
|
|
||||||
|
// 从名字上也可以看出，这是保存当前根节点的 fiber 对象
|
||||||
|
let wipRoot = null;
|
||||||
|
|
||||||
|
function scheduleUpdateOnFiber(fiber) {
|
||||||
|
wip = fiber;
|
||||||
|
wipRoot = fiber;
|
||||||
|
|
||||||
|
// 目前我们先使用 requestIdleCallback 来进行调用
|
||||||
|
// 后期使用 scheduler 包来进行调用
|
||||||
|
// 当浏览器的每一帧有空闲时间的时候，就会执行 workloop 函数
|
||||||
|
requestIdleCallback(workloop);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数会在每一帧有剩余时间的时候执行
|
||||||
|
*/
|
||||||
|
function workloop(deadline) {
|
||||||
|
while (wip && deadline.timeRemaining() > 0) {
|
||||||
|
// 进入此循环，说明有需要进行处理的 fiber 节点
|
||||||
|
// 并且目前也有时间来处理
|
||||||
|
performUnitOfWork(); // 该方法负责处理一个 fiber 节点
|
||||||
|
}
|
||||||
|
|
||||||
|
// 代码来这里，说明要么是没时间，这个我们不需要管
|
||||||
|
// 还有一种情况，就是整个 fiber 树都处理完了
|
||||||
|
if (!wip) {
|
||||||
|
// 说明整个 fiber 树都处理完了
|
||||||
|
// 我们需要将 wipRoot 提交到 DOM 节点上
|
||||||
|
commitRoot();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该函数主要负责处理一个 fiber 节点
|
||||||
|
* 有下面的事情要做：
|
||||||
|
* 1. 处理当前的 fiber 对象
|
||||||
|
* 2. 通过深度优先遍历子节点，生成子节点的 fiber 对象，然后继续处理
|
||||||
|
* 3. 提交副作用
|
||||||
|
* 4. 进行渲染
|
||||||
|
*/
|
||||||
|
function performUnitOfWork() {
|
||||||
|
beginWork(wip); // 处理当前的 fiber 对象
|
||||||
|
|
||||||
|
// 如果有子节点，将 wip 更新为子节点
|
||||||
|
if (wip.child) {
|
||||||
|
wip = wip.child;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
completeWork(wip);
|
||||||
|
|
||||||
|
// 如果没有子节点，就需要找到兄弟节点
|
||||||
|
let next = wip; // 先缓存一下当前的 wip
|
||||||
|
while (next) {
|
||||||
|
if (next.sibling) {
|
||||||
|
wip = next.sibling;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果没有进入上面的 if，说明当前节点后面已经没有兄弟节点了
|
||||||
|
// 那么就需要将父节点设置为当前正在工作的节点，然后在父亲那一层继续寻找兄弟节点
|
||||||
|
next = next.return;
|
||||||
|
|
||||||
|
// 在寻找父亲那一辈的兄弟节点之前，先执行一下 completeWork 方法
|
||||||
|
completeWork(next);
|
||||||
|
}
|
||||||
|
|
||||||
|
// 如果执行到这里，说明整个 fiber 树都处理完了
|
||||||
|
// 没有节点需要处理了
|
||||||
|
wip = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 执行该方法的时候，说明整个节点的协调工作已经完成
|
||||||
|
* 接下来就进入到渲染阶段
|
||||||
|
*/
|
||||||
|
function commitRoot() {
|
||||||
|
commitWorker(wipRoot);
|
||||||
|
// 渲染完成后将 wipRoot 置为 null
|
||||||
|
wipRoot = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
export default scheduleUpdateOnFiber;
|
||||||
27
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
27
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/reconciler/ReactWorkTags.js
vendored
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
/**
|
||||||
|
* 不同类型的 fiber 对象，有不同的 tag 值
|
||||||
|
*/
|
||||||
|
export const FunctionComponent = 0; // 函数组件
|
||||||
|
export const ClassComponent = 1; // 类组件
|
||||||
|
export const IndeterminateComponent = 2; // 初始化的时候不知道是函数组件还是类组件
|
||||||
|
export const HostRoot = 3; // Root Fiber 可以理解为根元素 ， 通过reactDom.render()产生的根元素
|
||||||
|
export const HostPortal = 4; // 对应 ReactDOM.createPortal 产生的 Portal
|
||||||
|
export const HostComponent = 5; // dom 元素 比如 <div>
|
||||||
|
export const HostText = 6; // 文本节点
|
||||||
|
export const Fragment = 7; // 对应 <React.Fragment>
|
||||||
|
export const Mode = 8; // 对应 <React.StrictMode>
|
||||||
|
export const ContextConsumer = 9; // 对应 <Context.Consumer>
|
||||||
|
export const ContextProvider = 10; // 对应 <Context.Provider>
|
||||||
|
export const ForwardRef = 11; // 对应 React.ForwardRef
|
||||||
|
export const Profiler = 12; // 对应 <Profiler/ >
|
||||||
|
export const SuspenseComponent = 13; // 对应 <Suspense>
|
||||||
|
export const MemoComponent = 14; // 对应 React.memo 返回的组件
|
||||||
|
export const SimpleMemoComponent = 15;
|
||||||
|
export const LazyComponent = 16;
|
||||||
|
export const IncompleteClassComponent = 17;
|
||||||
|
export const DehydratedFragment = 18;
|
||||||
|
export const SuspenseListComponent = 19;
|
||||||
|
export const ScopeComponent = 21;
|
||||||
|
export const OffscreenComponent = 22;
|
||||||
|
export const LegacyHiddenComponent = 23;
|
||||||
|
export const CacheComponent = 24;
|
||||||
117
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/shared/utils.js
vendored
Normal file
117
源码篇/06. 完成原生标签初次渲染/react-mini2/src/lib/shared/utils.js
vendored
Normal file
@ -0,0 +1,117 @@
|
|||||||
|
// 存放工具方法的文件
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 对 fiber 对象要做的操作进行的标记
|
||||||
|
*/
|
||||||
|
|
||||||
|
// 没有任何操作
|
||||||
|
export const NoFlags = 0b00000000000000000000;
|
||||||
|
// 节点新增、插入、移动
|
||||||
|
export const Placement = 0b0000000000000000000010; // 2
|
||||||
|
// 节点更新属性
|
||||||
|
export const Update = 0b0000000000000000000100; // 4
|
||||||
|
// 删除节点
|
||||||
|
export const Deletion = 0b0000000000000000001000; // 8
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为字符串
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isStr(s) {
|
||||||
|
return typeof s === "string";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 fn 是否为函数
|
||||||
|
* @param {*} fn
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isFn(fn) {
|
||||||
|
return typeof fn === "function";
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 s 是否为 undefined
|
||||||
|
* @param {*} s
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isUndefined(s) {
|
||||||
|
return s === undefined;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 判断参数 arr 是否为数组
|
||||||
|
* @param {*} arr
|
||||||
|
* @returns
|
||||||
|
*/
|
||||||
|
export function isArray(arr) {
|
||||||
|
return Array.isArray(arr);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 该方法主要负责更新 DOM 节点上的属性
|
||||||
|
* @param {*} node 真实的 DOM 节点
|
||||||
|
* @param {*} prevVal 旧值
|
||||||
|
* @param {*} nextVal 新值
|
||||||
|
*/
|
||||||
|
export function updateNode(node, prevVal, nextVal) {
|
||||||
|
// 这里其实要做的事情就分为两个部分：
|
||||||
|
// 1. 对旧值的处理
|
||||||
|
// 2. 对新值的处理
|
||||||
|
|
||||||
|
// 步骤一：对旧值进行处理
|
||||||
|
Object.keys(prevVal).forEach((k) => {
|
||||||
|
// 拿到的 k 就有不同的情况
|
||||||
|
if (k === "children") {
|
||||||
|
// 这里我们需要判断一下 children 是否是字符串
|
||||||
|
// 如果是字符串，说明是文本节点，我们需要将其设置为空字符串
|
||||||
|
if (isStr(prevVal[k])) {
|
||||||
|
node.textContent = "";
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定的事件
|
||||||
|
// 那么我就需要将你这个旧值移除掉
|
||||||
|
|
||||||
|
// 首先获取到事件名
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
// 需要注意，如果是 change 事件，那么背后绑定的是 input 事件
|
||||||
|
// 这里我们需要做一下处理
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
// 移除事件
|
||||||
|
node.removeEventListener(eventName, prevVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明就是普通的属性
|
||||||
|
// 例如 id、className 之类的
|
||||||
|
// 这里不能无脑的直接去除，应该检查一下新值中是否还有这个属性
|
||||||
|
// 如果没有，我们需要将其移除掉
|
||||||
|
if (!(k in nextVal)) {
|
||||||
|
node[k] = "";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// 步骤二：对新值进行处理，流程基本和上面一样，只不过是反着操作
|
||||||
|
Object.keys(nextVal).forEach((k) => {
|
||||||
|
if (k === "children") {
|
||||||
|
// 需要判断是否是文本节点
|
||||||
|
if (isStr(nextVal[k])) {
|
||||||
|
node.textContent = nextVal[k];
|
||||||
|
}
|
||||||
|
} else if (k.startsWith("on")) {
|
||||||
|
// 说明是绑定事件
|
||||||
|
let eventName = k.slice(2).toLowerCase();
|
||||||
|
|
||||||
|
if (eventName === "change") {
|
||||||
|
eventName = "input";
|
||||||
|
}
|
||||||
|
|
||||||
|
node.addEventListener(eventName, nextVal[k]);
|
||||||
|
} else {
|
||||||
|
// 进入此分支，说明是普通的属性
|
||||||
|
node[k] = nextVal[k];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
27
源码篇/06. 完成原生标签初次渲染/react-mini2/src/main.jsx
Normal file
27
源码篇/06. 完成原生标签初次渲染/react-mini2/src/main.jsx
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
// 引入 React 原生库
|
||||||
|
// import ReactDOM from "react-dom/client";
|
||||||
|
|
||||||
|
// 引入我们自己的库
|
||||||
|
import ReactDOM from "./lib/react-dom/ReactDOM";
|
||||||
|
|
||||||
|
// import App from "./App.jsx";
|
||||||
|
|
||||||
|
const root = ReactDOM.createRoot(document.getElementById("root"));
|
||||||
|
|
||||||
|
// root.render(<App />);
|
||||||
|
|
||||||
|
function test() {}
|
||||||
|
|
||||||
|
root.render(
|
||||||
|
<div id="oDiv" className="test" onChange={test}>
|
||||||
|
<ul>
|
||||||
|
<li>苹果</li>
|
||||||
|
<li>香蕉</li>
|
||||||
|
<li>西瓜</li>
|
||||||
|
</ul>
|
||||||
|
<p>哈哈哈哈</p>
|
||||||
|
{/* 1111 */}
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
|
||||||
|
// root.render(1111);
|
||||||
7
源码篇/06. 完成原生标签初次渲染/react-mini2/vite.config.js
Normal file
7
源码篇/06. 完成原生标签初次渲染/react-mini2/vite.config.js
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
import { defineConfig } from 'vite'
|
||||||
|
import react from '@vitejs/plugin-react'
|
||||||
|
|
||||||
|
// https://vitejs.dev/config/
|
||||||
|
export default defineConfig({
|
||||||
|
plugins: [react()],
|
||||||
|
})
|
||||||
20
源码篇/07. 完成函数组件和类组件渲染/react-mini2/.eslintrc.cjs
Normal file
20
源码篇/07. 完成函数组件和类组件渲染/react-mini2/.eslintrc.cjs
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
module.exports = {
|
||||||
|
root: true,
|
||||||
|
env: { browser: true, es2020: true },
|
||||||
|
extends: [
|
||||||
|
'eslint:recommended',
|
||||||
|
'plugin:react/recommended',
|
||||||
|
'plugin:react/jsx-runtime',
|
||||||
|
'plugin:react-hooks/recommended',
|
||||||
|
],
|
||||||
|
ignorePatterns: ['dist', '.eslintrc.cjs'],
|
||||||
|
parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
|
||||||
|
settings: { react: { version: '18.2' } },
|
||||||
|
plugins: ['react-refresh'],
|
||||||
|
rules: {
|
||||||
|
'react-refresh/only-export-components': [
|
||||||
|
'warn',
|
||||||
|
{ allowConstantExport: true },
|
||||||
|
],
|
||||||
|
},
|
||||||
|
}
|
||||||
24
源码篇/07. 完成函数组件和类组件渲染/react-mini2/.gitignore
vendored
Normal file
24
源码篇/07. 完成函数组件和类组件渲染/react-mini2/.gitignore
vendored
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
# Logs
|
||||||
|
logs
|
||||||
|
*.log
|
||||||
|
npm-debug.log*
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
pnpm-debug.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
|
||||||
|
node_modules
|
||||||
|
dist
|
||||||
|
dist-ssr
|
||||||
|
*.local
|
||||||
|
|
||||||
|
# Editor directories and files
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/extensions.json
|
||||||
|
.idea
|
||||||
|
.DS_Store
|
||||||
|
*.suo
|
||||||
|
*.ntvs*
|
||||||
|
*.njsproj
|
||||||
|
*.sln
|
||||||
|
*.sw?
|
||||||
8
源码篇/07. 完成函数组件和类组件渲染/react-mini2/README.md
Normal file
8
源码篇/07. 完成函数组件和类组件渲染/react-mini2/README.md
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# React + Vite
|
||||||
|
|
||||||
|
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
|
||||||
|
|
||||||
|
Currently, two official plugins are available:
|
||||||
|
|
||||||
|
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
|
||||||
|
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
|
||||||
13
源码篇/07. 完成函数组件和类组件渲染/react-mini2/index.html
Normal file
13
源码篇/07. 完成函数组件和类组件渲染/react-mini2/index.html
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<!doctype html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="UTF-8" />
|
||||||
|
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||||
|
<title>Vite + React</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="root"></div>
|
||||||
|
<script type="module" src="/src/main.jsx"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
27
源码篇/07. 完成函数组件和类组件渲染/react-mini2/package.json
Normal file
27
源码篇/07. 完成函数组件和类组件渲染/react-mini2/package.json
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
{
|
||||||
|
"name": "react-mini2",
|
||||||
|
"private": true,
|
||||||
|
"version": "0.0.0",
|
||||||
|
"type": "module",
|
||||||
|
"scripts": {
|
||||||
|
"dev": "vite",
|
||||||
|
"build": "vite build",
|
||||||
|
"lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
|
||||||
|
"preview": "vite preview"
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"prop-types": "^15.8.1",
|
||||||
|
"react": "^18.2.0",
|
||||||
|
"react-dom": "^18.2.0"
|
||||||
|
},
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/react": "^18.2.37",
|
||||||
|
"@types/react-dom": "^18.2.15",
|
||||||
|
"@vitejs/plugin-react": "^4.2.0",
|
||||||
|
"eslint": "^8.53.0",
|
||||||
|
"eslint-plugin-react": "^7.33.2",
|
||||||
|
"eslint-plugin-react-hooks": "^4.6.0",
|
||||||
|
"eslint-plugin-react-refresh": "^0.4.4",
|
||||||
|
"vite": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
2366
源码篇/07. 完成函数组件和类组件渲染/react-mini2/pnpm-lock.yaml
generated
Normal file
2366
源码篇/07. 完成函数组件和类组件渲染/react-mini2/pnpm-lock.yaml
generated
Normal file
File diff suppressed because it is too large
Load Diff
1
源码篇/07. 完成函数组件和类组件渲染/react-mini2/public/vite.svg
Normal file
1
源码篇/07. 完成函数组件和类组件渲染/react-mini2/public/vite.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 1.5 KiB |
48
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/App.jsx
Normal file
48
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/App.jsx
Normal file
@ -0,0 +1,48 @@
|
|||||||
|
import PropTypes from "prop-types";
|
||||||
|
import React from "./lib/react/React";
|
||||||
|
// function App({ id }) {
|
||||||
|
// return (
|
||||||
|
// <div className="container" id={id}>
|
||||||
|
// <div className="one">
|
||||||
|
// <div className="two">
|
||||||
|
// <p>1</p>
|
||||||
|
// <p>2</p>
|
||||||
|
// </div>
|
||||||
|
// <div className="three">
|
||||||
|
// <p>3</p>
|
||||||
|
// <p>4</p>
|
||||||
|
// </div>
|
||||||
|
// </div>
|
||||||
|
// <p>this is a tes1</p>
|
||||||
|
// </div>
|
||||||
|
// );
|
||||||
|
// }
|
||||||
|
|
||||||
|
class App extends React.Component {
|
||||||
|
constructor(props) {
|
||||||
|
super(props);
|
||||||
|
}
|
||||||
|
render() {
|
||||||
|
return (
|
||||||
|
<div className="container" id={this.props.id}>
|
||||||
|
<div className="one">
|
||||||
|
<div className="two">
|
||||||
|
<p>1111</p>
|
||||||
|
<p>2222</p>
|
||||||
|
</div>
|
||||||
|
<div className="three">
|
||||||
|
<p>3333</p>
|
||||||
|
<p>4444</p>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<p>this is a test!!!</p>
|
||||||
|
</div>
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
App.propTypes = {
|
||||||
|
id: PropTypes.string.isRequired,
|
||||||
|
};
|
||||||
|
|
||||||
|
export default App;
|
||||||
1
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/assets/react.svg
Normal file
1
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/assets/react.svg
Normal file
@ -0,0 +1 @@
|
|||||||
|
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||||
|
After Width: | Height: | Size: 4.0 KiB |
50
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
50
源码篇/07. 完成函数组件和类组件渲染/react-mini2/src/lib/react-dom/ReactDOM.js
vendored
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
import createFiber from "../reconciler/ReactFiber";
|
||||||
|
import scheduleUpdateOnFiber from "../reconciler/ReactFiberWorkLoop";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 更新容器的方法
|
||||||
|
* @param {*} element 要挂载的 vnode 树
|
||||||
|
* @param {*} container 容器的 DOM 节点
|
||||||
|
*/
|
||||||
|
function updateContainer(element, container) {
|
||||||
|
const fiber = createFiber(element, {
|
||||||
|
// 该对象就是我的父 fiber 对象，里面会放置一些核心的属性
|
||||||
|
type: container.nodeName.toLowerCase(),
|
||||||
|
stateNode: container,
|
||||||
|
});
|
||||||
|
// console.log(fiber);
|
||||||
|
// 到目前为止，我们就创建了第一个 fiber 对象
|
||||||
|
// 但是目前仅仅只有最外层的父元素创建了对应的 fiber 对象
|
||||||
|
scheduleUpdateOnFiber(fiber);
|
||||||
|
}
|
||||||
|
|
||||||
|
class ReactDOMRoot {
|
||||||
|
constructor(container) {
|
||||||
|
// 将拿到的根 DOM 节点在内部保存一份
|
||||||
|
this._internalRoot = container;
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} children 要挂载到根节点的 vnode 树
|
||||||
|
* 这里做一个讲课的约定：
|
||||||
|
* 1. 以前的虚拟DOM，我们称之为 vnode
|
||||||
|
* 2. 新的虚拟DOM，我们称之为 Fiber
|
||||||
|
*/
|
||||||
|
render(children) {
|
||||||
|
// console.log(children);
|
||||||
|
updateContainer(children, this._internalRoot);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const ReactDOM = {
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @param {*} container 要挂载的根 DOM 节点
|
||||||
|
* @return 返回值是一个对象，该对象会有一个 render 方法
|
||||||
|
*/
|
||||||
|
createRoot(container) {
|
||||||
|
return new ReactDOMRoot(container);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
export default ReactDOM;
|
||||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
x
Reference in New Issue
Block a user