chore(build): remove 'module.exports' export from dts for backward compatibility of TS < 5.6.2 (#12948)

* chore: remove 'module.exports' export from dts to support old TS

* chore: update

Author: Timeless0911

packages/rspack/etc/core.api.md

@@ -6819,7 +6819,6 @@ type Rspack = typeof rspack_2 & typeof rspackExports & {
 // @public (undocumented)
 const rspack: Rspack;
 export default rspack;
-export { rspack as module.exports }
 export { rspack }
 
 // @public (undocumented)

packages/rspack/rslib.config.ts

@@ -167,8 +167,26 @@ const codmodPlugin: RsbuildPlugin = {
   },
 };
 
+// Remove `export { rspack as 'module.exports' };` to avoid parsing errors with TypeScript < 5.6.2
+const removeDtsExportPlugin: RsbuildPlugin = {
+  name: 'remove-dts-export',
+  setup(api) {
+    api.onAfterBuild(async () => {
+      const dtsPath = path.resolve(import.meta.dirname, 'dist/index.d.ts');
+      if (fs.existsSync(dtsPath)) {
+        const content = await fs.promises.readFile(dtsPath, 'utf-8');
+        const newContent = content.replace(
+          "export { rspack as 'module.exports' };",
+          '',
+        );
+        await fs.promises.writeFile(dtsPath, newContent);
+      }
+    });
+  },
+};
+
 export default defineConfig({
-  plugins: [mfRuntimePlugin, codmodPlugin],
+  plugins: [mfRuntimePlugin, codmodPlugin, removeDtsExportPlugin],
   lib: [
     merge(commonLibConfig, {
       dts: {