fix(timers): bind global functions

src/runtime/node/timers/index.ts

@@ -12,18 +12,18 @@ import { setIntervalFallback } from "./internal/set-interval";
 export * as promises from "./promises";
 
 export const clearImmediate: typeof timers.clearImmediate =
-  globalThis.clearImmediate || clearImmediateFallback;
+  globalThis.clearImmediate?.bind(globalThis) || clearImmediateFallback;
 export const clearInterval: typeof timers.clearInterval =
-  globalThis.clearInterval || noop;
+  globalThis.clearInterval?.bind(globalThis) || noop;
 export const clearTimeout: typeof timers.clearTimeout =
-  globalThis.clearTimeout || noop;
+  globalThis.clearTimeout?.bind(globalThis) || noop;
 
 export const setImmediate: typeof timers.setImmediate =
-  globalThis.setImmediate || setImmediateFallback;
+  globalThis.setImmediate?.bind(globalThis) || setImmediateFallback;
 export const setTimeout: typeof timers.setTimeout =
-  globalThis.setTimeout || setTimeoutFallback;
+  globalThis.setTimeout?.bind(globalThis) || setTimeoutFallback;
 export const setInterval: typeof timers.setInterval =
-  globalThis.setInterval || setIntervalFallback;
+  globalThis.setInterval?.bind(globalThis) || setIntervalFallback;
 
 export const active = notImplemented("timers.active");
 export const _unrefActive = notImplemented("timers._unrefActive");

test/workerd/tests.mjs

@@ -157,6 +157,18 @@ export const workerd_dns = {
   },
 };
 
+// --- node:timers
+
+export const workerd_timers = {
+  async test() {
+    const timers = await import("unenv/runtime/node/timers");
+
+    timers.clearTimeout(timers.setTimeout(() => null, 1000));
+    timers.clearInterval(timers.setInterval(() => null, 1000));
+    timers.clearImmediate(timers.setImmediate(() => null));
+  },
+};
+
 // --- unenv:fetch
 
 // https://github.com/unjs/unenv/issues/364