From 7be586206cfe2f5eb62082a2975531e1f06b460e Mon Sep 17 00:00:00 2001
From: OneNail <31649110+OneNail@users.noreply.github.com>
Date: Wed, 21 Jul 2021 04:06:28 +0800
Subject: [PATCH] fix: reuse the old preprocessor after changing the lang attr
 (#4224)

* fix(plugin-vue): reuse the old preprocessor after changing the lang attr

* feat(playground): add stylus + change lang test in vue

* chore: add eol line break

Co-authored-by: Shinigami <chrissi92@hotmail.de>
---
 packages/plugin-vue/src/handleHotUpdate.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/plugin-vue/src/handleHotUpdate.ts b/packages/plugin-vue/src/handleHotUpdate.ts
index ae07de16..fd1275f4 100644
--- a/packages/plugin-vue/src/handleHotUpdate.ts
+++ b/packages/plugin-vue/src/handleHotUpdate.ts
@@ -88,7 +88,11 @@ export async function handleHotUpdate({
     const next = nextStyles[i]
     if (!prev || !isEqualBlock(prev, next)) {
       didUpdateStyle = true
-      const mod = modules.find((m) => m.url.includes(`type=style&index=${i}`))
+      const mod = modules.find(
+        (m) =>
+          m.url.includes(`type=style&index=${i}`) &&
+          m.url.endsWith(`.${next.lang || 'css'}`)
+      )
       if (mod) {
         affectedModules.add(mod)
       } else {