From 326d24a4e42b4f4fd243b36037e88b71963d963d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 30 Jun 2022 10:37:40 +0800
Subject: [PATCH] fix(sfc): only include legacy decorator parser plugin when
 new plugin is not used

---
 packages/compiler-sfc/src/compileScript.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/compiler-sfc/src/compileScript.ts b/packages/compiler-sfc/src/compileScript.ts
index 7af376bb9cc..d4b02663d06 100644
--- a/packages/compiler-sfc/src/compileScript.ts
+++ b/packages/compiler-sfc/src/compileScript.ts
@@ -126,7 +126,12 @@ export function compileScript(
       )
   }
   if (options.babelParserPlugins) plugins.push(...options.babelParserPlugins)
-  if (isTS) plugins.push('typescript', 'decorators-legacy')
+  if (isTS) {
+    plugins.push('typescript')
+    if (!plugins.includes('decorators')) {
+      plugins.push('decorators-legacy')
+    }
+  }
 
   if (!scriptSetup) {
     if (!script) {