From cfd10402380ebfa27eadd3e3198863a0dd11a995 Mon Sep 17 00:00:00 2001
From: yiminghe <heyiming.1218@bytedance.com>
Date: Wed, 20 Mar 2024 17:49:10 +0800
Subject: [PATCH] fix: avoid reload all css when hot load

---
 src/loader.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/loader.js b/src/loader.js
index 35d8a9ba..7598d196 100644
--- a/src/loader.js
+++ b/src/loader.js
@@ -44,9 +44,10 @@ const MiniCssExtractPlugin = require("./index");
  * @returns {string}
  */
 function hotLoader(content, context) {
-  const accept = context.locals
+  const hasLocals = !!(context.locals && Object.keys(context.locals).length);
+  const accept = hasLocals
     ? ""
-    : "module.hot.accept(undefined, cssReload);";
+    : "module.hot.accept();";
 
   return `${content}
     if(module.hot) {
@@ -56,7 +57,7 @@ function hotLoader(content, context) {
         path.join(__dirname, "hmr/hotModuleReplacement.js")
       )})(module.id, ${JSON.stringify({
     ...context.options,
-    locals: !!context.locals,
+    locals: hasLocals,
   })});
       module.hot.dispose(cssReload);
       ${accept}