feat(sfc): change `<script setup>` directive resolution to require v prefix

close #3543

diff --git a/packages/compiler-core/src/transforms/transformElement.ts b/packages/compiler-core/src/transforms/transformElement.ts
index 36396c5d7d1a2770928d95bece432c717c8633a6..cbf1b474bfb3eec3e26f4d6a6034f9526490fb5c 100644 (file)
--- 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 {