From d35e0b1468ce3c22b713020ed29f81aba40dd039 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 28 Jun 2021 17:35:28 -0400
Subject: [PATCH] feat(sfc): change `<script setup>` directive resolution to
 require v prefix

close #3543
---
 packages/compiler-core/src/transforms/transformElement.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/compiler-core/src/transforms/transformElement.ts b/packages/compiler-core/src/transforms/transformElement.ts
index 36396c5d7d1..cbf1b474bfb 100644
--- a/packages/compiler-core/src/transforms/transformElement.ts
+++ b/packages/compiler-core/src/transforms/transformElement.ts
@@ -739,7 +739,8 @@ function buildDirectiveArgs(
   } else {
     // user directive.
     // see if we have directives exposed via <script setup>
-    const fromSetup = !__BROWSER__ && resolveSetupReference(dir.name, context)
+    const fromSetup =
+      !__BROWSER__ && resolveSetupReference('v-' + dir.name, context)
     if (fromSetup) {
       dirArgs.push(fromSetup)
     } else {