docs(post): update post sandpack

components/rua/rua-sandpack.tsx

@@ -14,15 +14,22 @@ const RUASandpack = ({ ...rest }: Props) => {
 
   if (!mounted) {
     return (
-      <div className="my-2 min-h-[402px]">
+      <div className="my-2 rounded-[0.5em] overflow-hidden">
-        <Sandpack {...rest} />
+        <Sandpack
+          {...rest}
+          options={{
+            showConsole: true,
+            showConsoleButton: true,
+            editorHeight: '512px',
+          }}
+        />
       </div>
     );
   }
 
   return (
     <>
-      <div className="my-2 min-h-[402px]">
+      <div className="my-2 rounded-[0.5em] overflow-hidden">
         <Sandpack
           {...rest}
           theme={
@@ -30,6 +37,12 @@ const RUASandpack = ({ ...rest }: Props) => {
               (theme ?? 'latte') as keyof typeof THEME_CATPUCCIN_MAP
             ]
           }
+          options={{
+            showConsole: true,
+            showConsoleButton: true,
+            editorHeight: '512px',
+            showRefreshButton: true,
+          }}
         />
       </div>
     </>

content/mdx-data.ts

@@ -24,6 +24,14 @@ import {
   useSyncExternalStore,
   useTransition,
 } from './sandpack/react18-new-hooks';
+import {
+  app1,
+  app2,
+  app3,
+  signal1,
+  signal2,
+  signal3,
+} from './sandpack/automatic-dependency-collect';
 
 const data = {
   sandpack: {
@@ -58,6 +66,14 @@ const data = {
       MultiStore,
       Reducer,
     },
+    'automatic-dependency-collect': {
+      signal1,
+      app1,
+      signal2,
+      app2,
+      signal3,
+      app3,
+    },
   },
 };
 

content/posts/automatic-dependency-collect.mdx

@@ -96,24 +96,17 @@ const useState: UseState = (value) => {
 
 使用它的方式和官方 hooks 没有区别：
 
-```tsx
+<RUASandpack
-function App() {
+  template="react-ts"
-  console.log('App updated');
+  files={{
-  const [count, setCount] = useState(0);
+    '/Button.tsx': {
-
+      code: sandpack.common.Button,
-  return (
+      hidden: true,
-    <>
+    },
-      <button
+    '/signal.ts': sandpack['automatic-dependency-collect'].signal1,
-        onClick={() => {
+    '/App.tsx': sandpack['automatic-dependency-collect'].app1,
-          setCount((d) => d + 1);
+  }}
-        }}
+/>
-      >
-        Update {count()}
-      </button>
-    </>
-  );
-}
-```
 
 ### useEffect
 
@@ -248,6 +241,18 @@ const useEffect = (callback: () => void) => {
 };
 ```
 
+<RUASandpack
+  template="react-ts"
+  files={{
+    '/Button.tsx': {
+      code: sandpack.common.Button,
+      hidden: true,
+    },
+    '/signal.ts': sandpack['automatic-dependency-collect'].signal2,
+    '/App.tsx': sandpack['automatic-dependency-collect'].app2,
+  }}
+/>
+
 ### useMemo
 
 通过 `useEffect` 实现的自动依赖追踪，我们就可以轻松的实现一个自动追踪依赖的 `useMemo`：
@@ -259,3 +264,15 @@ const useMemo = <T>(callback: () => T) => {
   return s;
 };
 ```
+
+<RUASandpack
+  template="react-ts"
+  files={{
+    '/Button.tsx': {
+      code: sandpack.common.Button,
+      hidden: true,
+    },
+    '/signal.ts': sandpack['automatic-dependency-collect'].signal3,
+    '/App.tsx': sandpack['automatic-dependency-collect'].app3,
+  }}
+/>

content/sandpack/automatic-dependency-collect.ts

@@ -0,0 +1,299 @@
+export const signal1 = `import { useRef, useState as useUpdate } from "react";
+
+export type Getter<T> = () => T;
+export type Setter<T> = (newValue: T | ((oldValue: T) => T)) => void;
+export type UseState = <T>(value: T) => [Getter<T>, Setter<T>];
+
+export const useState: UseState = (value) => {
+  const state = useRef(value);
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const [_, update] = useUpdate({});
+
+  const getter: Getter<typeof value> = () => {
+    return state.current;
+  };
+
+  const setter: Setter<typeof value> = (updater) => {
+    const newState =
+      updater instanceof Function ? updater(state.current) : updater;
+    if (state.current === newState) return;
+    state.current = newState;
+    update({});
+  };
+
+  return [getter, setter];
+};
+`;
+
+export const app1 = `import { useState } from "./signal";
+import Button from './Button';
+
+function App() {
+  console.log('App updated');
+  const [count, setCount] = useState(0);
+
+  return (
+    <>
+      <Button
+        onClick={() => {
+          setCount((d) => d + 1);
+        }}
+      >
+        Update {count()}
+      </Button>
+    </>
+  );
+}
+
+export default App;
+`;
+
+export const signal2 = `/* eslint-disable react-hooks/exhaustive-deps */
+import { useRef, useState as useUpdate, useEffect as useMounted } from 'react';
+
+export type Getter<T> = () => T;
+export type Setter<T> = (newValue: T | ((oldValue: T) => T)) => void;
+export type UseState = <T>(value: T) => [Getter<T>, Setter<T>];
+export type Subs = Set<Effect>;
+
+export type Effect = {
+  // 用于执行 useEffect 回调函数
+  execute: () => void;
+  // 保存该 useEffect 依赖的 state 对应的 subs 集合
+  deps: Set<Subs>;
+};
+const effectStack: Effect[] = [];
+
+const subscribe = (effect: Effect, subs: Subs) => {
+  // 建立订阅关系
+  subs.add(effect);
+  // 建立依赖关系
+  effect.deps.add(subs);
+};
+const useState: UseState = (value) => {
+  const state = useRef(value);
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const [_, update] = useUpdate({});
+
+  const subs = useRef(new Set<Effect>());
+
+  const getter: Getter<typeof value> = () => {
+    // 获取刚刚送入栈中的 effect
+    const effect = effectStack[effectStack.length - 1];
+    if (effect) {
+      // 建立订阅发布关系
+      subscribe(effect, subs.current);
+    }
+    return state.current;
+  };
+
+  const setter: Setter<typeof value> = (updater) => {
+    const newState =
+      updater instanceof Function ? updater(state.current) : updater;
+    if (state.current === newState) return;
+
+    state.current = newState;
+    update({});
+    // 通知所有订阅 effect 状态变化
+    for (const sub of [...subs.current]) {
+      sub.execute();
+    }
+  };
+
+  return [getter, setter];
+};
+
+const cleanup = (effect: Effect) => {
+  for (const subs of effect.deps) {
+    subs.delete(effect);
+  }
+  effect.deps.clear();
+};
+
+const useEffect = (callback: () => void) => {
+  const execute = () => {
+    // 重制依赖
+    cleanup(effect);
+    // 添加到副作用列表
+    effectStack.push(effect);
+    try {
+      callback();
+    } finally {
+      effectStack.pop();
+    }
+  };
+  const effect: Effect = {
+    execute,
+    deps: new Set(),
+  };
+
+  useMounted(() => {
+    // 调用时执行
+    execute();
+  }, []);
+};
+
+export { useState, useEffect };
+`;
+
+export const app2 = `import { useState, useEffect } from "./signal";
+import Button from './Button';
+
+function App() {
+  console.log('App updated');
+  const [count, setCount] = useState(0);
+
+  console.log('App updated');
+  useEffect(() => {
+    console.log('count is ', count());
+  });
+  useEffect(() => {
+    console.log('effect update');
+  });
+
+  return (
+    <>
+      <Button
+        onClick={() => {
+          setCount((d) => d + 1);
+        }}
+      >
+        Update {count()}
+      </Button>
+    </>
+  );
+}
+
+export default App;
+`;
+
+export const signal3 = `/* eslint-disable react-hooks/exhaustive-deps */
+import { useRef, useState as useUpdate, useEffect as useMounted } from 'react';
+
+export type Getter<T> = () => T;
+export type Setter<T> = (newValue: T | ((oldValue: T) => T)) => void;
+export type UseState = <T>(value: T) => [Getter<T>, Setter<T>];
+export type Subs = Set<Effect>;
+
+export type Effect = {
+  // 用于执行 useEffect 回调函数
+  execute: () => void;
+  // 保存该 useEffect 依赖的 state 对应的 subs 集合
+  deps: Set<Subs>;
+};
+const effectStack: Effect[] = [];
+
+const subscribe = (effect: Effect, subs: Subs) => {
+  // 建立订阅关系
+  subs.add(effect);
+  // 建立依赖关系
+  effect.deps.add(subs);
+};
+const useState: UseState = (value) => {
+  const state = useRef(value);
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const [_, update] = useUpdate({});
+
+  const subs = useRef(new Set<Effect>());
+
+  const getter: Getter<typeof value> = () => {
+    // 获取刚刚送入栈中的 effect
+    const effect = effectStack[effectStack.length - 1];
+    if (effect) {
+      // 建立订阅发布关系
+      subscribe(effect, subs.current);
+    }
+    return state.current;
+  };
+
+  const setter: Setter<typeof value> = (updater) => {
+    const newState =
+      updater instanceof Function ? updater(state.current) : updater;
+    if (state.current === newState) return;
+
+    state.current = newState;
+    update({});
+    // 通知所有订阅 effect 状态变化
+    for (const sub of [...subs.current]) {
+      sub.execute();
+    }
+  };
+
+  return [getter, setter];
+};
+
+const cleanup = (effect: Effect) => {
+  for (const subs of effect.deps) {
+    subs.delete(effect);
+  }
+  effect.deps.clear();
+};
+
+const useEffect = (callback: () => void) => {
+  const execute = () => {
+    // 重制依赖
+    cleanup(effect);
+    // 添加到副作用列表
+    effectStack.push(effect);
+    try {
+      callback();
+    } finally {
+      effectStack.pop();
+    }
+  };
+  const effect: Effect = {
+    execute,
+    deps: new Set(),
+  };
+
+  useMounted(() => {
+    // 调用时执行
+    execute();
+  }, []);
+};
+
+const useMemo = <T>(callback: () => T) => {
+  const [s, set] = useState(callback());
+  useEffect(() => set(callback()));
+  return s;
+};
+
+export { useState, useEffect, useMemo };
+`;
+
+export const app3 = `import { useState, useEffect, useMemo } from "./signal";
+import Button from './Button';
+
+function App() {
+  console.log('App updated');
+  const [count, setCount] = useState(0);
+
+  console.log('App updated');
+  useEffect(() => {
+    console.log('count is ', count());
+  });
+  useEffect(() => {
+    console.log('effect update');
+  });
+
+  const double = useMemo(() => count() * 2);
+
+  return (
+    <>
+      <Button
+        onClick={() => {
+          setCount((d) => d + 1);
+        }}
+      >
+        Update {count()}
+      </Button>
+
+      <Button disabled>
+        Double {double()}
+      </Button>
+    </>
+  );
+}
+
+export default App;
+`;