From 57ffc3e546395ba048009396a4b82d3f968cca2c Mon Sep 17 00:00:00 2001
From: Anthony Fu <anthonyfu117@hotmail.com>
Date: Tue, 27 Sep 2022 17:06:24 +0800
Subject: [PATCH] fix(ssr): avoid ast.helpers duplication (#6664)

---
 packages/compiler-ssr/src/ssrCodegenTransform.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/compiler-ssr/src/ssrCodegenTransform.ts b/packages/compiler-ssr/src/ssrCodegenTransform.ts
index 755862b5232..4d142162073 100644
--- a/packages/compiler-ssr/src/ssrCodegenTransform.ts
+++ b/packages/compiler-ssr/src/ssrCodegenTransform.ts
@@ -48,9 +48,10 @@ export function ssrCodegenTransform(ast: RootNode, options: CompilerOptions) {
     context.body.push(
       createCompoundExpression([`const _cssVars = { style: `, varsExp, `}`])
     )
-    Array.from(cssContext.helpers.keys()).forEach(helper =>
-      ast.helpers.push(helper)
-    )
+    Array.from(cssContext.helpers.keys()).forEach(helper => {
+      if (!ast.helpers.includes(helper))
+        ast.helpers.push(helper)
+    })
   }
 
   const isFragment =