fix(ext/node): implement performance.timerify() (#31238)

Adds the missing implementation for `performance.timerify()` in
`node:perf_hooks`, which previously resulted in a "Not implemented"
error.

Fixes #31115

Author: amitihere

ext/node/polyfills/perf_hooks.js

@@ -3,7 +3,6 @@
 // TODO(petamoriken): enable prefer-primordials for node polyfills
 // deno-lint-ignore-file prefer-primordials
 
-import { notImplemented } from "ext:deno_node/_utils.ts";
 import { performance, PerformanceEntry } from "ext:deno_web/15_performance.js";
 import { EldHistogram } from "ext:core/ops";
 
@@ -24,12 +23,29 @@ performance.eventLoopUtilization = () => {
   return { idle: 0, active: 0, utilization: 0 };
 };
 
-// TODO(bartlomieju):
 performance.nodeTiming = {};
 
-// TODO(bartlomieju):
-performance.timerify = () => notImplemented("timerify from performance");
+performance.timerify = (fn) => {
+  if (typeof fn !== "function") {
+    throw new TypeError("The 'fn' argument must be of type function");
+  }
+  const wrapped = (...args) => {
+    const start = performance.now();
+    const result = fn(...args);
+    const end = performance.now();
+
+    performance.measure(`timerify(${fn.name || "anonymous"})`, { start, end });
 
+    return result;
+  };
+
+  Object.defineProperty(wrapped, "name", {
+    value: fn.name || "wrapped",
+    configurable: true,
+  });
+
+  return wrapped;
+};
 // TODO(bartlomieju):
 performance.markResourceTiming = () => {};
 

tests/unit_node/timers_test.ts

@@ -4,6 +4,20 @@ import { assert, assertRejects, fail } from "@std/assert";
 import * as timers from "node:timers";
 import * as timersPromises from "node:timers/promises";
 import { assertEquals } from "@std/assert";
+import { performance } from "node:perf_hooks";
+
+Deno.test("[node/perf_hooks] performance.timerify()", () => {
+  function sayHello() {
+    return "hello world";
+  }
+
+  const wrapped = performance.timerify(sayHello);
+  const result = wrapped();
+
+  if (result !== "hello world") {
+    throw new Error(`Expected "hello world", got "${result}"`);
+  }
+});
 
 Deno.test("[node/timers setTimeout]", () => {
   {