From 02a189ded80b576e37243f6614d8e65dbd9eb4fd Mon Sep 17 00:00:00 2001
From: qiang <guoshengqiang@live.com>
Date: Wed, 19 Aug 2020 17:27:09 +0800
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---
 .../uni-template-compiler/__tests__/compiler-extra.spec.js   | 5 +++++
 .../uni-template-compiler/lib/script/traverse/data/event.js  | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/uni-template-compiler/__tests__/compiler-extra.spec.js b/packages/uni-template-compiler/__tests__/compiler-extra.spec.js
index dfbb7be2c..b38ae059e 100644
--- a/packages/uni-template-compiler/__tests__/compiler-extra.spec.js
+++ b/packages/uni-template-compiler/__tests__/compiler-extra.spec.js
@@ -332,6 +332,11 @@ describe('mp:compiler-extra', () => {
       '<block wx:for="{{list}}" wx:for-item="item" wx:for-index="index" wx:key="index"><view><view data-event-opts="{{[[\'tap\',[[\'e0\',[\'$event\']]]]]}}" data-event-params="{{({item})}}" bindtap="__e"></view></view></block>',
       'with(this){if(!_isMounted){e0=function($event,item){var _temp=arguments[arguments.length-1].currentTarget.dataset,_temp2=_temp.eventParams||_temp["event-params"],item=_temp2.item;var _temp,_temp2;return $test.test(item,item.length)}}}'
     )
+    assertCodegen(
+      '<view v-for="(item,index) in list" :key="index"><view @click="$test.test(item,item.length,undefined)"></view></view>',
+      '<block wx:for="{{list}}" wx:for-item="item" wx:for-index="index" wx:key="index"><view><view data-event-opts="{{[[\'tap\',[[\'e0\',[\'$event\']]]]]}}" data-event-params="{{({item})}}" bindtap="__e"></view></view></block>',
+      'with(this){if(!_isMounted){e0=function($event,item){var _temp=arguments[arguments.length-1].currentTarget.dataset,_temp2=_temp.eventParams||_temp["event-params"],item=_temp2.item;var _temp,_temp2;return $test.test(item,item.length,undefined)}}}'
+    )
   })
 
   it('generate class binding', () => {
diff --git a/packages/uni-template-compiler/lib/script/traverse/data/event.js b/packages/uni-template-compiler/lib/script/traverse/data/event.js
index c5e9dc25e..cfc01a9b7 100644
--- a/packages/uni-template-compiler/lib/script/traverse/data/event.js
+++ b/packages/uni-template-compiler/lib/script/traverse/data/event.js
@@ -335,7 +335,7 @@ function parseEvent (keyPath, valuePath, state, isComponent, isNativeOn = false,
               const scope = path.scope
               const node = path.node
               const name = node.name
-              if (path.key !== 'key' && (path.key !== 'property' || path.parent.computed) && scope && !scope.hasOwnBinding(name) && scope.hasBinding(name) && !params.includes(name)) {
+              if (path.key !== 'key' && (path.key !== 'property' || path.parent.computed) && scope && !scope.hasOwnBinding(name) && scope.hasBinding(name) && !params.includes(name) && name !== 'undefined') {
                 params.push(name)
               }
             }
-- 
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