catchError.js 1.8 KB

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  1. /** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
  2. import * as tslib_1 from "tslib";
  3. import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';
  4. export function catchError(selector) {
  5. return function catchErrorOperatorFunction(source) {
  6. var operator = new CatchOperator(selector);
  7. var caught = source.lift(operator);
  8. return (operator.caught = caught);
  9. };
  10. }
  11. var CatchOperator = /*@__PURE__*/ (function () {
  12. function CatchOperator(selector) {
  13. this.selector = selector;
  14. }
  15. CatchOperator.prototype.call = function (subscriber, source) {
  16. return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));
  17. };
  18. return CatchOperator;
  19. }());
  20. var CatchSubscriber = /*@__PURE__*/ (function (_super) {
  21. tslib_1.__extends(CatchSubscriber, _super);
  22. function CatchSubscriber(destination, selector, caught) {
  23. var _this = _super.call(this, destination) || this;
  24. _this.selector = selector;
  25. _this.caught = caught;
  26. return _this;
  27. }
  28. CatchSubscriber.prototype.error = function (err) {
  29. if (!this.isStopped) {
  30. var result = void 0;
  31. try {
  32. result = this.selector(err, this.caught);
  33. }
  34. catch (err2) {
  35. _super.prototype.error.call(this, err2);
  36. return;
  37. }
  38. this._unsubscribeAndRecycle();
  39. var innerSubscriber = new SimpleInnerSubscriber(this);
  40. this.add(innerSubscriber);
  41. var innerSubscription = innerSubscribe(result, innerSubscriber);
  42. if (innerSubscription !== innerSubscriber) {
  43. this.add(innerSubscription);
  44. }
  45. }
  46. };
  47. return CatchSubscriber;
  48. }(SimpleOuterSubscriber));
  49. //# sourceMappingURL=catchError.js.map