From a07a633603b6236aac9d9aa9e1496888bae614b7 Mon Sep 17 00:00:00 2001
From: "qing.deng" <dengqing0821@gmail.com>
Date: Fri, 16 Sep 2022 15:04:45 +0800
Subject: [PATCH 1/2] fix: syntax error when v-on contains objects

---
 packages/compiler-sfc/src/compileScript.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/compiler-sfc/src/compileScript.ts b/packages/compiler-sfc/src/compileScript.ts
index 5a77e8a9463..f4f6ff7936e 100644
--- a/packages/compiler-sfc/src/compileScript.ts
+++ b/packages/compiler-sfc/src/compileScript.ts
@@ -2135,7 +2135,11 @@ function processExp(exp: string, dir?: string): string {
     if (dir === 'slot') {
       exp = `(${exp})=>{}`
     } else if (dir === 'on') {
-      exp = `()=>{${exp}}`
+      if (/^\{.*\}$/.test(exp.trim())) {
+        exp = `()=>(${exp})`
+      } else {
+        exp = `()=>{${exp}}`
+      }
     } else if (dir === 'for') {
       const inMatch = exp.match(forAliasRE)
       if (inMatch) {

From ac2114b18c77aa30613946f9051afcbc06ff56e9 Mon Sep 17 00:00:00 2001
From: "qing.deng" <dengqing0821@gmail.com>
Date: Fri, 16 Sep 2022 15:04:54 +0800
Subject: [PATCH 2/2] test: update cases

---
 .../compiler-sfc/__tests__/compileScript.spec.ts     | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/packages/compiler-sfc/__tests__/compileScript.spec.ts b/packages/compiler-sfc/__tests__/compileScript.spec.ts
index 08d404b9c16..778c13a449b 100644
--- a/packages/compiler-sfc/__tests__/compileScript.spec.ts
+++ b/packages/compiler-sfc/__tests__/compileScript.spec.ts
@@ -474,6 +474,18 @@ defineExpose({ foo: 123 })
       </tempalte>
       `)
     })
+
+    test('v-on contain object', () => {
+      // should not error
+      compile(`
+      <script setup lang="ts">
+        import { foo } from './foo'
+      </script>
+      <template>
+        <div v-on="{ foo }"></div>
+      </tempalte>
+      `)
+    })
   })
 
   describe('inlineTemplate mode', () => {