Ohm-Management - Projektarbeit B-ME
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exhaust.js 2.2KB

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  1. "use strict";
  2. var __extends = (this && this.__extends) || (function () {
  3. var extendStatics = function (d, b) {
  4. extendStatics = Object.setPrototypeOf ||
  5. ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
  6. function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
  7. return extendStatics(d, b);
  8. }
  9. return function (d, b) {
  10. extendStatics(d, b);
  11. function __() { this.constructor = d; }
  12. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  13. };
  14. })();
  15. Object.defineProperty(exports, "__esModule", { value: true });
  16. var OuterSubscriber_1 = require("../OuterSubscriber");
  17. var subscribeToResult_1 = require("../util/subscribeToResult");
  18. function exhaust() {
  19. return function (source) { return source.lift(new SwitchFirstOperator()); };
  20. }
  21. exports.exhaust = exhaust;
  22. var SwitchFirstOperator = (function () {
  23. function SwitchFirstOperator() {
  24. }
  25. SwitchFirstOperator.prototype.call = function (subscriber, source) {
  26. return source.subscribe(new SwitchFirstSubscriber(subscriber));
  27. };
  28. return SwitchFirstOperator;
  29. }());
  30. var SwitchFirstSubscriber = (function (_super) {
  31. __extends(SwitchFirstSubscriber, _super);
  32. function SwitchFirstSubscriber(destination) {
  33. var _this = _super.call(this, destination) || this;
  34. _this.hasCompleted = false;
  35. _this.hasSubscription = false;
  36. return _this;
  37. }
  38. SwitchFirstSubscriber.prototype._next = function (value) {
  39. if (!this.hasSubscription) {
  40. this.hasSubscription = true;
  41. this.add(subscribeToResult_1.subscribeToResult(this, value));
  42. }
  43. };
  44. SwitchFirstSubscriber.prototype._complete = function () {
  45. this.hasCompleted = true;
  46. if (!this.hasSubscription) {
  47. this.destination.complete();
  48. }
  49. };
  50. SwitchFirstSubscriber.prototype.notifyComplete = function (innerSub) {
  51. this.remove(innerSub);
  52. this.hasSubscription = false;
  53. if (this.hasCompleted) {
  54. this.destination.complete();
  55. }
  56. };
  57. return SwitchFirstSubscriber;
  58. }(OuterSubscriber_1.OuterSubscriber));
  59. //# sourceMappingURL=exhaust.js.map