text: import { EmptyError } from '../util/EmptyError';
  import { operate } from '../util/lift';
  import { createOperatorSubscriber } from './OperatorSubscriber';
  export function throwIfEmpty(errorFactory) {
      if (errorFactory === void 0) { errorFactory = defaultErrorFactory; }
      return operate(function (source, subscriber) {
          var hasValue = false;
          source.subscribe(createOperatorSubscriber(subscriber, function (value) {
              hasValue = true;
              subscriber.next(value);
          }, function () { return (hasValue ? subscriber.complete() : subscriber.error(errorFactory())); }));
      });
  }
  function defaultErrorFactory() {
      return new EmptyError();
  }
  //# sourceMappingURL=throwIfEmpty.js.map