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);
9 return function (d, b) {
11 function __() { this.constructor = d; }
12 d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
15 Object.defineProperty(exports, "__esModule", { value: true });
16 var Subscriber_1 = require("../Subscriber");
18 return function (source) { return source.lift(new PairwiseOperator()); };
20 exports.pairwise = pairwise;
21 var PairwiseOperator = (function () {
22 function PairwiseOperator() {
24 PairwiseOperator.prototype.call = function (subscriber, source) {
25 return source.subscribe(new PairwiseSubscriber(subscriber));
27 return PairwiseOperator;
29 var PairwiseSubscriber = (function (_super) {
30 __extends(PairwiseSubscriber, _super);
31 function PairwiseSubscriber(destination) {
32 var _this = _super.call(this, destination) || this;
33 _this.hasPrev = false;
36 PairwiseSubscriber.prototype._next = function (value) {
39 pair = [this.prev, value];
46 this.destination.next(pair);
49 return PairwiseSubscriber;
50 }(Subscriber_1.Subscriber));
51 //# sourceMappingURL=pairwise.js.map