Bump WebKit (oven-sh/WebKit#674 preview): the microtask queue no longer aborts at 2^25 pending jobs

scripts/build/deps/webkit.ts

@@ -3,7 +3,7 @@
  * for local mode. Override via `--webkit-version=<hash>` to test a branch.
  * From https://github.com/oven-sh/WebKit releases.
  */
-export const WEBKIT_VERSION = "c28156899e5f90ce22e2b5d780e117c6268edfc4";
+export const WEBKIT_VERSION = "autobuild-preview-pr-674-6bf5befa";
 
 /**
  * WebKit (JavaScriptCore) — the JS engine.

test/js/web/timers/microtask.test.js

@@ -1,4 +1,6 @@
 import { expect, it } from "bun:test";
+import { bunEnv, bunExe, isDebug } from "harness";
+import { totalmem } from "node:os";
 
 // https://github.com/oven-sh/bun/issues/9249
 it("queueMicrotask.length is 1", () => {
@@ -77,3 +79,36 @@ it("queueMicrotask", async () => {
     if (!passed) throw new Error("queueMicrotask should throw a TypeError if the argument is empty");
   }
 });
+
+// The microtask queue is one buffer that doubles, and a buffer of 2^26 tasks is past the 2 GB limit of a
+// WTF::Vector, so the 2^25th pending task aborted the process. The child needs about 3 GB. It takes a few
+// seconds in a release build and more than 3 minutes in a debug build.
+it.skipIf(totalmem() < 8 * 1024 ** 3)(
+  "queueMicrotask accepts more than 2^25 pending callbacks",
+  async () => {
+    await using proc = Bun.spawn({
+      cmd: [
+        bunExe(),
+        "-e",
+        `
+          const count = 2 ** 25 + 1;
+          let ran = 0;
+          const callback = () => { ran++; };
+          for (let i = 0; i < count; i++) queueMicrotask(callback);
+          console.log("queued", count);
+          queueMicrotask(() => console.log("ran", ran));
+        `,
+      ],
+      env: bunEnv,
+      stdout: "pipe",
+      stderr: "pipe",
+    });
+    const [stdout, stderr, exitCode] = await Promise.all([proc.stdout.text(), proc.stderr.text(), proc.exited]);
+    expect({ stdout, stderr, exitCode }).toEqual({
+      stdout: "queued 33554433\nran 33554433\n",
+      stderr: "",
+      exitCode: 0,
+    });
+  },
+  isDebug ? 600_000 : 60_000,
+);