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							- "use strict";
 
- var __extends = (this && this.__extends) || (function () {
 
-     var extendStatics = function (d, b) {
 
-         extendStatics = Object.setPrototypeOf ||
 
-             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
 
-             function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
 
-         return extendStatics(d, b);
 
-     }
 
-     return function (d, b) {
 
-         extendStatics(d, b);
 
-         function __() { this.constructor = d; }
 
-         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 
-     };
 
- })();
 
- Object.defineProperty(exports, "__esModule", { value: true });
 
- var innerSubscribe_1 = require("../innerSubscribe");
 
- function distinct(keySelector, flushes) {
 
-     return function (source) { return source.lift(new DistinctOperator(keySelector, flushes)); };
 
- }
 
- exports.distinct = distinct;
 
- var DistinctOperator = (function () {
 
-     function DistinctOperator(keySelector, flushes) {
 
-         this.keySelector = keySelector;
 
-         this.flushes = flushes;
 
-     }
 
-     DistinctOperator.prototype.call = function (subscriber, source) {
 
-         return source.subscribe(new DistinctSubscriber(subscriber, this.keySelector, this.flushes));
 
-     };
 
-     return DistinctOperator;
 
- }());
 
- var DistinctSubscriber = (function (_super) {
 
-     __extends(DistinctSubscriber, _super);
 
-     function DistinctSubscriber(destination, keySelector, flushes) {
 
-         var _this = _super.call(this, destination) || this;
 
-         _this.keySelector = keySelector;
 
-         _this.values = new Set();
 
-         if (flushes) {
 
-             _this.add(innerSubscribe_1.innerSubscribe(flushes, new innerSubscribe_1.SimpleInnerSubscriber(_this)));
 
-         }
 
-         return _this;
 
-     }
 
-     DistinctSubscriber.prototype.notifyNext = function () {
 
-         this.values.clear();
 
-     };
 
-     DistinctSubscriber.prototype.notifyError = function (error) {
 
-         this._error(error);
 
-     };
 
-     DistinctSubscriber.prototype._next = function (value) {
 
-         if (this.keySelector) {
 
-             this._useKeySelector(value);
 
-         }
 
-         else {
 
-             this._finalizeNext(value, value);
 
-         }
 
-     };
 
-     DistinctSubscriber.prototype._useKeySelector = function (value) {
 
-         var key;
 
-         var destination = this.destination;
 
-         try {
 
-             key = this.keySelector(value);
 
-         }
 
-         catch (err) {
 
-             destination.error(err);
 
-             return;
 
-         }
 
-         this._finalizeNext(key, value);
 
-     };
 
-     DistinctSubscriber.prototype._finalizeNext = function (key, value) {
 
-         var values = this.values;
 
-         if (!values.has(key)) {
 
-             values.add(key);
 
-             this.destination.next(value);
 
-         }
 
-     };
 
-     return DistinctSubscriber;
 
- }(innerSubscribe_1.SimpleOuterSubscriber));
 
- exports.DistinctSubscriber = DistinctSubscriber;
 
- //# sourceMappingURL=distinct.js.map
 
 
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