refactor: reorganize all components (#8303)

src/index-anchor/IndexAnchor.tsx

@@ -1,18 +1,20 @@
-import { ref, reactive, computed, CSSProperties } from 'vue';
+import { ref, reactive, computed, CSSProperties, defineComponent } from 'vue';
 
 // Utils
 import { createNamespace, getZIndexStyle } from '../utils';
 import { BORDER_BOTTOM } from '../utils/constant';
-import { INDEX_BAR_KEY, IndexBarProvide } from '../index-bar';
+import { INDEX_BAR_KEY, IndexBarProvide } from '../index-bar/IndexBar';
 import { getScrollTop, getRootScrollTop } from '../utils/dom/scroll';
 
 // Composables
 import { useRect, useParent } from '@vant/use';
 import { useExpose } from '../composables/use-expose';
 
-const [createComponent, bem] = createNamespace('index-anchor');
+const [name, bem] = createNamespace('index-anchor');
+
+export default defineComponent({
+  name,
 
-export default createComponent({
   props: {
     index: [Number, String],
   },

src/index-anchor/index.ts

@@ -0,0 +1,7 @@
+import { installable } from '../utils';
+import _IndexAnchor from './IndexAnchor';
+
+const IndexAnchor = installable(_IndexAnchor);
+
+export default IndexAnchor;
+export { IndexAnchor };