fix(v3): remove cyclic structures of event #1559

src/core/helpers/patch.js

@@ -6,10 +6,11 @@ import {
  * mpvue event
  */
 export function wrapperMPEvent (event) {
-  return Object.assign({
-    mp: event,
-    _processed: true
+  event.mp = Object.assign({
+    '@warning': 'mp is deprecated'
   }, event)
+  event._processed = true
+  return event
 }
 /**
  * app-plus titleNView
@@ -48,4 +49,4 @@ export function mergeTitleNView (navigationBar, titleNView) {
     }
   }
   return navigationBar
-}
+}

src/platforms/app-plus/service/framework/plugins/vdom-sync.js

@@ -3,6 +3,10 @@ import {
   noop
 } from 'uni-shared'
 
+import {
+  wrapperMPEvent
+} from 'uni-helpers/patch'
+
 import {
   VD_SYNC,
   UI_EVENT,
@@ -55,10 +59,7 @@ function wrapperEvent (event) {
   parseTargets(event)
   event.preventDefault = noop
   event.stopPropagation = noop
-  event.mp = event
-  return Object.assign({
-    mp: event // mpvue
-  }, event)
+  return wrapperMPEvent(event)
 }
 
 const handleVdData = {