feat: add hmr hot getExports

Author: underfin

packages/vite/src/shared/hmr.ts

@@ -155,6 +155,15 @@ export class HMRContext implements ViteHotContext {
     this.hmrClient.send({ type: 'custom', event, data })
   }
 
+  async getExports(): Promise<unknown> {
+    return this.fullBundleMode
+      ? Promise.resolve().then(() =>
+          // @ts-expect-error __rolldown_runtime__
+          __rolldown_runtime__.loadExports(this.ownerPath),
+        )
+      : import(this.ownerPath)
+  }
+
   private acceptDeps(
     deps: string[],
     callback: HotCallback['fn'] = () => {},