feat(composition api): toRef

pages/composition-api/reactivity/to-ref/to-ref.test.js

+const PAGE_PATH = '/pages/composition-api/reactivity/to-ref/to-ref'
+
+describe('toRef', () => {
+  if (process.env.uniTestPlatformInfo.startsWith('android')) {
+    let page = null
+    beforeAll(async () => {
+      page = await program.reLaunch(PAGE_PATH)
+      await page.waitFor('view')
+    })
+    it('basic', async () => {
+      const count = await page.$('#count')
+      expect(await count.text()).toBe('count: 0')
+      const isRefCount = await page.$('#is-ref-count')
+      expect(await isRefCount.text()).toBe('isRef count: false')
+      const refCount = await page.$('#ref-count')
+      expect(await refCount.text()).toBe('ref count: 0')
+      const isRefRefCount = await page.$('#is-ref-ref-count')
+      expect(await isRefRefCount.text()).toBe('isRef ref count: true')
+
+      const objNum = await page.$('#obj-num')
+      expect(await objNum.text()).toBe('obj.num: 0')
+      const toRefObjNum = await page.$('#to-ref-obj-num')
+      expect(await toRefObjNum.text()).toBe('toRef(obj, "num"): 0')
+      const toRefFnObjNum = await page.$('#to-ref-fn-obj-num')
+      expect(await toRefFnObjNum.text()).toBe('toRef(() => obj.num): 0')
+      
+      const incrementBtn = await page.$('#increment-btn')
+      await incrementBtn.tap()
+      
+      expect(await objNum.text()).toBe('obj.num: 2')
+      expect(await toRefObjNum.text()).toBe('toRef(obj, "num"): 2')
+      expect(await toRefFnObjNum.text()).toBe('toRef(() => obj.num): 2')
+    })
+  } else {
+    it('other platform', () => {
+      expect(1).toBe(1)
+    })
+  }
+})
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pages/composition-api/reactivity/to-ref/to-ref.uvue

- <template><view class="page">toRef</view></template>
\ No newline at end of file
+<template>
+  <view class="page">
+    <text id="count">count: {{ count }}</text>
+    <text class="uni-common-mt" id="is-ref-count">isRef count: {{ isRefCount }}</text>
+    <text class="uni-common-mt" id="ref-count">ref count: {{ refCount }}</text>
+    <text class="uni-common-mt" id="is-ref-ref-count">isRef ref count: {{ isRefRefCount }}</text>
+
+    <text class="uni-common-mt" id="obj-num">obj.num: {{ obj.num }}</text>
+    <text class="uni-common-mt" id="to-ref-obj-num">toRef(obj, "num"): {{ objNum }}</text>
+    <text class="uni-common-mt" id="to-ref-fn-obj-num">toRef(() => obj.num): {{ readonlyObjNum }}</text>
+    <button class="uni-common-mt" id="increment-btn" @click="increment">increment obj.num</button>
+  </view>
+</template>
+
+<script setup>
+  const count = 0;
+  const isRefCount = isRef(count);
+  const refCount = toRef<number>(count);
+  const isRefRefCount = isRef(refCount);
+
+  type Obj = {
+    num : number
+  }
+  const obj = reactive({
+    num: 0
+  } as Obj)
+
+  const objNum = toRef<number>(obj, 'num')
+
+  const readonlyObjNum = toRef<number>(() : number => obj.num)
+
+  const increment = () => {
+    obj.num++;
+    objNum.value++;
+    readonlyObjNum.value++;
+  }
+</script>
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pages/tab-bar/composition-api.uvue

@@ -136,7 +136,7 @@
           {
             name: 'toRef',
             url: 'to-ref',
-            enable: false,
+            enable: true,
           },
           {
             name: 'toValue',