refactor: move middleware normalization out of core

Author: pi0

src/h3.ts

@@ -178,6 +178,10 @@ export const H3Core = /* @__PURE__ */ (() => {
       return this as unknown as H3Type;
     }
 
+    _normalizeMiddleware(fn: Middleware, _opts: any): Middleware {
+      return fn;
+    }
+
     use(arg1: unknown, arg2?: unknown, arg3?: unknown): H3Type {
       let route: string | undefined;
       let fn: Middleware | H3Type;
@@ -191,10 +195,7 @@ export const H3Core = /* @__PURE__ */ (() => {
         opts = arg2 as MiddlewareOptions;
       }
       this._middleware.push(
-        normalizeMiddleware(
-          fn as Middleware,
-          route ? { ...opts, route } : opts,
-        ),
+        this._normalizeMiddleware(fn as Middleware, { ...opts, route }),
       );
       return this as unknown as H3Type;
     }
@@ -231,4 +232,11 @@ export class H3 extends H3Core {
     addRoute(this._rou3, _route.method, _route.route!, _route);
     super._addRoute(_route);
   }
+
+  override _normalizeMiddleware(
+    fn: Middleware,
+    opts?: MiddlewareOptions & { route?: string },
+  ): Middleware {
+    return normalizeMiddleware(fn as Middleware, opts);
+  }
 }

src/types/h3.ts

@@ -113,6 +113,12 @@ export declare class H3 {
   /** @internal */
   _getMiddleware(route: MatchedRoute<H3Route> | void): Middleware[];
 
+  /** @internal */
+  _normalizeMiddleware(
+    fn: Middleware,
+    _opts?: MiddlewareOptions & { route?: string },
+  ): Middleware;
+
   /** @internal */
   _addRoute(_route: H3Route): void;
 

test/bench/bundle.test.ts

@@ -20,7 +20,7 @@ describe("benchmark", () => {
         `Bundle size (H3): ${bundle.bytes} (gzip: ${bundle.gzipSize})`,
       );
     }
-    expect(bundle.bytes).toBeLessThanOrEqual(10_000); // <10kb
+    expect(bundle.bytes).toBeLessThanOrEqual(11_000); // <11kb
     expect(bundle.gzipSize).toBeLessThanOrEqual(4000); // <4kb
   });
 
@@ -38,8 +38,8 @@ describe("benchmark", () => {
         `Bundle size (H3Core): ${bundle.bytes} (gzip: ${bundle.gzipSize})`,
       );
     }
-    expect(bundle.bytes).toBeLessThanOrEqual(8000); // <8kb
-    expect(bundle.gzipSize).toBeLessThanOrEqual(3500); // <3.5kb
+    expect(bundle.bytes).toBeLessThanOrEqual(7500); // <7.5kb
+    expect(bundle.gzipSize).toBeLessThanOrEqual(3000); // <3kb
   });
 
   it("bundle size (defineHandler)", async () => {
@@ -56,7 +56,7 @@ describe("benchmark", () => {
         `Bundle size (defineHandler): ${bundle.bytes} (gzip: ${bundle.gzipSize})`,
       );
     }
-    expect(bundle.bytes).toBeLessThanOrEqual(5400); // <5.4kb
+    expect(bundle.bytes).toBeLessThanOrEqual(5300); // <5.3kb
     expect(bundle.gzipSize).toBeLessThanOrEqual(2200); // <2.2kb
   });
 });