fix(mp-weixin): 修复for循环中，事件引用循环值报错

packages/uni-template-compiler/__tests__/compiler-extra.spec.js

@@ -699,6 +699,11 @@ describe('mp:compiler-extra', () => {
       '<view v-for="item in list" @click="test(item)">{{ item }}</view>',
       '<block wx:for="{{list}}" wx:for-item="item" wx:for-index="__i0__"><view data-event-opts="{{[[\'tap\',[[\'test\',[\'$0\'],[[[\'list\',\'\',__i0__]]]]]]]}}" bindtap="__e">{{item}}</view></block>'
     )
+    assertCodegen(
+      '<view v-for="(item, index) in [{x:[1,2,3,4]}]"><view v-for="item2 in item.x" @click="test(item2)">{{ item2 }}+{{index}}</view></view>',
+      '<block wx:for="{{[{x:[1,2,3,4]}]}}" wx:for-item="item" wx:for-index="index"><view><block wx:for="{{item.x}}" wx:for-item="item2" wx:for-index="__i0__"><view data-event-opts="{{[[\'tap\',[[\'e0\',[\'$event\']]]]]}}" data-event-params="{{({item2})}}" bindtap="__e">{{item2+"+"+index}}</view></block></view></block>',
+      'with(this){if(!_isMounted){e0=function($event,item2){var _temp=arguments[arguments.length-1].currentTarget.dataset,_temp2=_temp.eventParams||_temp["event-params"],item2=_temp2.item2;var _temp,_temp2;return test(item2)}}}'
+    )
   })
   it('generate bool attr', () => {
     assertCodegen(

packages/uni-template-compiler/lib/script/traverse/data/event.js

@@ -304,6 +304,17 @@ function parseEvent (keyPath, valuePath, state, isComponent, isNativeOn = false,
           }
         }
 
+        // 判断是否是复杂表达式  数组  或  对象
+        const isNotDynamicExpression = (state) => {
+          if (!(state.scoped[0])) {
+            return true
+          }
+          const value = state.scoped[0].forExtra[0].elements[0].value
+          return !(typeof value === 'string' && (value.startsWith('[') || value.startsWith('}')))
+        }
+
+        // 如果v-for遍历的值为 数组、对象 则进入复杂表达式
+        if (isNotDynamicExpression(state)) {
           anonymous && funcPath.traverse({
             noScope: true,
             MemberExpression (path) {
@@ -345,6 +356,8 @@ function parseEvent (keyPath, valuePath, state, isComponent, isNativeOn = false,
               }
             }
           })
+        }
+
         if (anonymous) {
           // 处理复杂表达式中使用的局部变量（主要在v-for中定义）
           funcPath.traverse({