+++ /dev/null
-/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
-import * as tslib_1 from "tslib";
-import { Subscriber } from '../Subscriber';
-export function pairwise() {
- return function (source) { return source.lift(new PairwiseOperator()); };
-}
-var PairwiseOperator = /*@__PURE__*/ (function () {
- function PairwiseOperator() {
- }
- PairwiseOperator.prototype.call = function (subscriber, source) {
- return source.subscribe(new PairwiseSubscriber(subscriber));
- };
- return PairwiseOperator;
-}());
-var PairwiseSubscriber = /*@__PURE__*/ (function (_super) {
- tslib_1.__extends(PairwiseSubscriber, _super);
- function PairwiseSubscriber(destination) {
- var _this = _super.call(this, destination) || this;
- _this.hasPrev = false;
- return _this;
- }
- PairwiseSubscriber.prototype._next = function (value) {
- var pair;
- if (this.hasPrev) {
- pair = [this.prev, value];
- }
- else {
- this.hasPrev = true;
- }
- this.prev = value;
- if (pair) {
- this.destination.next(pair);
- }
- };
- return PairwiseSubscriber;
-}(Subscriber));
-//# sourceMappingURL=pairwise.js.map