feat(bench): add URLPattern benchmark script and finalize wiring

Author: Thanga-Ganapathy

bench/README.md

@@ -43,6 +43,7 @@ and `/tmp/deno/bin/deno`, and LLRT at `~/.llrt/bin/llrt`, `~/.local/bin/llrt`, o
 | **sha256** | 20 000 × SHA-256 of a 4 KiB buffer via `crypto.subtle.digest` — crypto backend + per-call async overhead. |
 | **crypto** | 2 000 × (HMAC-SHA-256 sign + AES-256-GCM encrypt/decrypt of 1 KiB, fresh IV) — the key-based `subtle` surface + `getRandomValues`. |
 | **url** | 100 000 × `new URL(...)` + component reads — for esrun one JS↔Rust op per parse; the others parse natively. |
+| **urlpattern** | 50 000 × `new URLPattern(...)` + `.test()` matches — polyfilled inside V8 vs native. |
 | **encoding** | 100 000 × `TextEncoder`/`TextDecoder` UTF-8 round trips — op crossings riding V8's native transcoding. |
 | **base64** | 10 000 × `btoa`/`atob` of a 1 KiB string — op-backed for esrun; native elsewhere. |
 | **structured** | 50 000 × `structuredClone` of a nested object — pure-JS recursive clone for esrun. |

bench/scripts/urlpattern.js

@@ -0,0 +1,20 @@
+// URLPattern benchmark: parsing and matching complex routes.
+(async () => {
+  const N = 50_000;
+  const run = (n) => {
+    let acc = 0;
+    for (let i = 0; i < n; i++) {
+      const p = new URLPattern('/api/v1/users/:id/posts/:postId', 'https://api.example.com');
+      if (p.test('https://api.example.com/api/v1/users/' + i + '/posts/' + (i + 1))) {
+        acc++;
+      }
+    }
+    return acc;
+  };
+  run(N / 10); // untimed JIT warmup
+  const t0 = performance.now();
+  const acc = run(N);
+  const t1 = performance.now();
+  if (acc === -1) console.log(acc); // defeat dead-code elimination
+  console.log("RESULT_MS=" + (t1 - t0).toFixed(2));
+})();

crates/runtime/src/prelude.rs

@@ -20,6 +20,7 @@ pub(crate) fn source() -> String {
         include_str!("prelude/base64.js"),
         include_str!("prelude/structured-clone.js"),
         include_str!("prelude/url.js"),
+        include_str!("prelude/urlpattern.js"),
         // events before abort: AbortSignal extends EventTarget.
         include_str!("prelude/events.js"),
         include_str!("prelude/abort.js"),

site/app/docs/globals/page.jsx

@@ -28,6 +28,7 @@ const groups = [
     items: [
       { n: "URL", s: "yes" },
       { n: "URLSearchParams", s: "yes" },
+      { n: "URLPattern", s: "yes" },
     ],
   },
   {