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Error hierarchy

All hurried errors extend HurriedError, so you can instanceof HurriedError to detect anything from the library.

HurriedError​

Base class. instanceof HurriedError matches every other library error.

TaskError​

A handler threw or rejected. The original error is on .cause:

try {
  await thread.run('process', data);
} catch (e) {
  if (e instanceof TaskError) {
    console.error('handler failed:', e.cause);
  }
}

TaskTimeoutError​

The call exceeded its timeout. .timeoutMs carries the configured deadline.

try {
  await thread.run(arg, { timeout: 500 });
} catch (e) {
  if (e instanceof TaskTimeoutError) retryWithLongerTimeout();
}

TaskAbortedError​

An AbortSignal fired during the call.

const controller = new AbortController();
setTimeout(() => controller.abort(), 100);

try {
  await thread.run(arg, { signal: controller.signal });
} catch (e) {
  if (e instanceof TaskAbortedError) { /* swallow */ }
}

TerminatedError​

The worker was terminated mid-flight (manually via terminate() or because it exited).

const promise = thread.run(arg);
await thread.terminate();        // promise rejects with TerminatedError