perf: update tree

Author: undefined

antdv-demo

@@ -4,6 +4,7 @@ import warning from 'warning';
 import { hasProp, initDefaultProps, getOptionProps, getSlot } from '../../_util/props-util';
 import { cloneElement } from '../../_util/vnode';
 import BaseMixin from '../../_util/BaseMixin';
+import syncWatch from '../../_util/syncWatch';
 import {
   convertTreeToEntities,
   convertDataToTree,
@@ -30,8 +31,11 @@ import {
 function getWatch(keys = []) {
   const watch = {};
   keys.forEach(k => {
-    watch[k] = function() {
-      this.needSyncKeys[k] = true;
+    watch[k] = {
+      handler() {
+        this.needSyncKeys[k] = true;
+      },
+      flush: 'sync',
     };
   });
   return watch;
@@ -149,10 +153,10 @@ const Tree = {
       'checkedKeys',
       'loadedKeys',
     ]),
-    __propsSymbol__() {
+    __propsSymbol__: syncWatch(function() {
       this.setState(this.getDerivedState(getOptionProps(this), this.$data));
       this.needSyncKeys = {};
-    },
+    }),
   },
 
   methods: {

components/vc-tree/src/Tree.jsx

@@ -15,7 +15,7 @@ Use Drawer to quickly preview details of an object, such as those in a list.
   </div>
 </template>
 <script>
-import demo from '../antdv-demo/docs/transfer/demo/basic.md';
+import demo from '../antdv-demo/docs/tree/demo';
 export default {
   components: {
     demo,