feat(computed): 实现计算属性缓存优化和调度器支持

- 添加 _dirty 标志位控制计算属性重新执行逻辑 - 在 ReactiveEffect 构造函数中增加调度器参数支持 - 实现计算属性值变更时的依赖触发机制 - 重构 triggerEffects 函数优先处理计算属性依赖 - 新增 EffectScheduler 类型定义统一调度器类型 - 添加 computed-cache.html 示例验证缓存功能
2026-02-08 22:39:34 +08:00
parent 4c60486511
commit c07431db08
3 changed files with 67 additions and 9 deletions
--- a/packages/vue/examples/reactivity/computed-cache.html
+++ b/packages/vue/examples/reactivity/computed-cache.html
@@ -0,0 +1,28 @@
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Document</title>
+  <script src="../../dist/vue.js"></script>
+</head>
+<body>
+<div id="app"></div>
+</body>
+<script>
+  const { reactive,effect,computed } = Vue
+  const obj=reactive({
+    name:'张三'
+  })
+  const computedObj= computed(()=>{
+    console.log('计算属性执行')
+    return '姓名:'+obj.name
+  })
+  effect(()=>{
+    document.querySelector('#app').innerText=computedObj.value
+    document.querySelector('#app').innerText=computedObj.value
+  })
+  setTimeout(()=>{
+    obj.name='李四'
+  },2000)
+</script>
+</html>