scheduleIterable.js 1.1 KB

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  1. import { Observable } from '../Observable';
  2. import { iterator as Symbol_iterator } from '../symbol/iterator';
  3. import { isFunction } from '../util/isFunction';
  4. import { executeSchedule } from '../util/executeSchedule';
  5. export function scheduleIterable(input, scheduler) {
  6. return new Observable((subscriber) => {
  7. let iterator;
  8. executeSchedule(subscriber, scheduler, () => {
  9. iterator = input[Symbol_iterator]();
  10. executeSchedule(subscriber, scheduler, () => {
  11. let value;
  12. let done;
  13. try {
  14. ({ value, done } = iterator.next());
  15. }
  16. catch (err) {
  17. subscriber.error(err);
  18. return;
  19. }
  20. if (done) {
  21. subscriber.complete();
  22. }
  23. else {
  24. subscriber.next(value);
  25. }
  26. }, 0, true);
  27. });
  28. return () => isFunction(iterator === null || iterator === void 0 ? void 0 : iterator.return) && iterator.return();
  29. });
  30. }
  31. //# sourceMappingURL=scheduleIterable.js.map