perf(react): skip transform hook completely in rolldown-vite in dev if possible (#783)

Author: sapphi-red

packages/plugin-react/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+### Skip transform hook completely in rolldown-vite in dev if possible ([#783](https://github.com/vitejs/vite-plugin-react/pull/783))
+
 ## 5.0.1 (2025-08-19)
 
 ### Set `optimizeDeps.rollupOptions.transform.jsx` instead of `optimizeDeps.rollupOptions.jsx` for rolldown-vite ([#735](https://github.com/vitejs/vite-plugin-react/pull/735))

packages/plugin-react/src/index.ts

@@ -208,8 +208,8 @@ export default function viteReact(opts: Options = {}): Plugin[] {
         staticBabelOptions = createBabelOptions(opts.babel)
 
         if (
+          (isRolldownVite || skipFastRefresh) &&
           canSkipBabel(staticBabelOptions.plugins, staticBabelOptions) &&
-          skipFastRefresh &&
           (opts.jsxRuntime === 'classic' ? isProduction : true)
         ) {
           delete viteBabel.transform
@@ -269,8 +269,7 @@ export default function viteReact(opts: Options = {}): Plugin[] {
 
         const isJSX = filepath.endsWith('x')
         const useFastRefresh =
-          !isRolldownVite &&
-          !skipFastRefresh &&
+          !(isRolldownVite || skipFastRefresh) &&
           !ssr &&
           (isJSX ||
             (opts.jsxRuntime === 'classic'