Repositorio del curso CCOM4030 el semestre B91 del proyecto Artesanías con el Instituto de Cultura

refCount.js 2.6KB

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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 Subscriber_1 = require("../Subscriber");
  17. function refCount() {
  18. return function refCountOperatorFunction(source) {
  19. return source.lift(new RefCountOperator(source));
  20. };
  21. }
  22. exports.refCount = refCount;
  23. var RefCountOperator = (function () {
  24. function RefCountOperator(connectable) {
  25. this.connectable = connectable;
  26. }
  27. RefCountOperator.prototype.call = function (subscriber, source) {
  28. var connectable = this.connectable;
  29. connectable._refCount++;
  30. var refCounter = new RefCountSubscriber(subscriber, connectable);
  31. var subscription = source.subscribe(refCounter);
  32. if (!refCounter.closed) {
  33. refCounter.connection = connectable.connect();
  34. }
  35. return subscription;
  36. };
  37. return RefCountOperator;
  38. }());
  39. var RefCountSubscriber = (function (_super) {
  40. __extends(RefCountSubscriber, _super);
  41. function RefCountSubscriber(destination, connectable) {
  42. var _this = _super.call(this, destination) || this;
  43. _this.connectable = connectable;
  44. return _this;
  45. }
  46. RefCountSubscriber.prototype._unsubscribe = function () {
  47. var connectable = this.connectable;
  48. if (!connectable) {
  49. this.connection = null;
  50. return;
  51. }
  52. this.connectable = null;
  53. var refCount = connectable._refCount;
  54. if (refCount <= 0) {
  55. this.connection = null;
  56. return;
  57. }
  58. connectable._refCount = refCount - 1;
  59. if (refCount > 1) {
  60. this.connection = null;
  61. return;
  62. }
  63. var connection = this.connection;
  64. var sharedConnection = connectable._connection;
  65. this.connection = null;
  66. if (sharedConnection && (!connection || sharedConnection === connection)) {
  67. sharedConnection.unsubscribe();
  68. }
  69. };
  70. return RefCountSubscriber;
  71. }(Subscriber_1.Subscriber));
  72. //# sourceMappingURL=refCount.js.map