Function strictUnhandledRejectionsMode

lib/internal/process/promises.js:270–286

* --unhandled-rejections=strict: * Emit 'uncaughtException'. If it's not handled, print the error to stderr * and exit the process. * Otherwise, emit 'unhandledRejection'. If 'unhandledRejection' is not * handled, emit 'UnhandledPromiseRejectionWarning'. * @type {UnhandledRejectionsModeHandler}

(promise, promiseInfo, promiseAsyncId)

 * @type {UnhandledRejectionsModeHandler}
 */
function strictUnhandledRejectionsMode(promise, promiseInfo, promiseAsyncId) {
  const reason = promiseInfo.reason;
  const err = isErrorLike(reason) ?
    reason : new UnhandledPromiseRejection(reason);
  // This destroys the async stack, don't clear it after
  triggerUncaughtException(err, true /* fromPromise */);
  if (promiseAsyncId !== undefined) {
    pushAsyncContext(
      promise[kAsyncIdSymbol],
      promise[kTriggerAsyncIdSymbol],
      promise,
    );
  }
  const handled = emitUnhandledRejection(promise, promiseInfo);
  if (!handled) emitUnhandledRejectionWarning(promiseInfo);
  return true;
}

/**
 * --unhandled-rejections=none: