--- /dev/null
+"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 OuterSubscriber_1 = require("../OuterSubscriber");
+var subscribeToResult_1 = require("../util/subscribeToResult");
+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(subscribeToResult_1.subscribeToResult(_this, flushes));
+ }
+ return _this;
+ }
+ DistinctSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+ this.values.clear();
+ };
+ DistinctSubscriber.prototype.notifyError = function (error, innerSub) {
+ 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;
+}(OuterSubscriber_1.OuterSubscriber));
+exports.DistinctSubscriber = DistinctSubscriber;
+//# sourceMappingURL=distinct.js.map
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