From 27af66caa868c8a6e8d4098579cb84a09412b14f Mon Sep 17 00:00:00 2001
From: fxy060608 <fxy060608@gmail.com>
Date: Mon, 4 Jul 2022 14:25:22 +0800
Subject: [PATCH] fix(mp-weixin): event key (#3677)

---
 packages/uni-mp-compiler/src/transforms/vOn.ts | 4 ++--
 packages/uni-mp-weixin/__tests__/vOn.spec.ts   | 9 ++++++++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/packages/uni-mp-compiler/src/transforms/vOn.ts b/packages/uni-mp-compiler/src/transforms/vOn.ts
index e605b9da1..1de5b9fbf 100644
--- a/packages/uni-mp-compiler/src/transforms/vOn.ts
+++ b/packages/uni-mp-compiler/src/transforms/vOn.ts
@@ -213,10 +213,10 @@ export function wrapperVOn(
   const keys: string[] = []
   if (context.miniProgram.event?.key && context.inVFor) {
     const keyProp = findProp(node, 'key')
-    // 仅对 v-for 中 item.id 类型做处理，使用索引无需处理，避免引发更多问题
+    // 对 for 中的所有事件增加 key 标记，避免微信小程序不更新事件对象
     if (keyProp && isDirectiveNode(keyProp) && keyProp.exp) {
       const keyCode = genExpr(keyProp.exp)
-      if (keyCode && keyCode.includes('.')) {
+      if (keyCode) {
         keys.push(',')
         keys.push(genExpr(keyProp.exp))
       }
diff --git a/packages/uni-mp-weixin/__tests__/vOn.spec.ts b/packages/uni-mp-weixin/__tests__/vOn.spec.ts
index 15ab422fb..c419b536c 100644
--- a/packages/uni-mp-weixin/__tests__/vOn.spec.ts
+++ b/packages/uni-mp-weixin/__tests__/vOn.spec.ts
@@ -36,7 +36,14 @@ describe('mp-weixin: transform v-on', () => {
       `<view v-for="(item,index) in items" :key="index" @click="test(item)"/>`,
       `<view wx:for="{{a}}" wx:for-item="item" wx:key="a" bindtap="{{item.b}}"/>`,
       `(_ctx, _cache) => {
-  return { a: _f(_ctx.items, (item, index, i0) => { return { a: index, b: _o($event => _ctx.test(item)) }; }) }
+  return { a: _f(_ctx.items, (item, index, i0) => { return { a: index, b: _o($event => _ctx.test(item), index) }; }) }
+}`
+    )
+    assert(
+      `<view v-for="item in items" :key="item" @click="test(item)"/>`,
+      `<view wx:for="{{a}}" wx:for-item="item" wx:key="a" bindtap="{{item.b}}"/>`,
+      `(_ctx, _cache) => {
+  return { a: _f(_ctx.items, (item, k0, i0) => { return { a: item, b: _o($event => _ctx.test(item), item) }; }) }
 }`
     )
   })
-- 
GitLab