perf(): moduleSideEffects: false

Author: manucorporat

src/index.ts

@@ -26,12 +26,12 @@ export default function (opts: NodePolyfillsOptions = {}) {
       if (importee === DIRNAME_PATH) {
         const id = getRandomId();
         dirs.set(id, dirname('/' + relative(basedir, importer)));
-        return id;
+        return {id, moduleSideEffects: false};
       }
       if (importee === FILENAME_PATH) {
         const id = getRandomId();
         dirs.set(id, dirname('/' + relative(basedir, importer)));
-        return id;
+        return {id, moduleSideEffects: false};
       }
       return resolver(importee);
     },

src/modules.ts

@@ -64,7 +64,7 @@ export function builtinsResolver(opts: NodePolyfillsOptions) {
       importee === importee.slice(0, -1);
     }
     if (libs.has(importee)) {
-      return libs.get(importee);
+      return {id: libs.get(importee), moduleSideEffects: false};
     }
     return null;
   }