Function throwUnhandledRejectionsMode

lib/internal/process/promises.js:316–328

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

(promise, promiseInfo)

 * @type {UnhandledRejectionsModeHandler}
 */
function throwUnhandledRejectionsMode(promise, promiseInfo) {
  const reason = promiseInfo.reason;
  const handled = emitUnhandledRejection(promise, promiseInfo);
  if (!handled) {
    const err = isErrorLike(reason) ?
      reason :
      new UnhandledPromiseRejection(reason);
    // This destroys the async stack, don't clear it after
    triggerUncaughtException(err, true /* fromPromise */);
    return false;
  }
  return true;
}

/**
 * --unhandled-rejections=warn-with-error-code: