[6a3a178] | 1 | /** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
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| 2 | import * as tslib_1 from "tslib";
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| 3 | import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
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| 4 | export function distinct(keySelector, flushes) {
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| 5 | return function (source) { return source.lift(new DistinctOperator(keySelector, flushes)); };
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| 6 | }
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| 7 | var DistinctOperator = /*@__PURE__*/ (function () {
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| 8 | function DistinctOperator(keySelector, flushes) {
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| 9 | this.keySelector = keySelector;
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| 10 | this.flushes = flushes;
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| 11 | }
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| 12 | DistinctOperator.prototype.call = function (subscriber, source) {
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| 13 | return source.subscribe(new DistinctSubscriber(subscriber, this.keySelector, this.flushes));
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| 14 | };
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| 15 | return DistinctOperator;
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| 16 | }());
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| 17 | var DistinctSubscriber = /*@__PURE__*/ (function (_super) {
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| 18 | tslib_1.__extends(DistinctSubscriber, _super);
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| 19 | function DistinctSubscriber(destination, keySelector, flushes) {
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| 20 | var _this = _super.call(this, destination) || this;
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| 21 | _this.keySelector = keySelector;
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| 22 | _this.values = new Set();
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| 23 | if (flushes) {
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| 24 | _this.add(innerSubscribe(flushes, new SimpleInnerSubscriber(_this)));
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| 25 | }
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| 26 | return _this;
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| 27 | }
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| 28 | DistinctSubscriber.prototype.notifyNext = function () {
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| 29 | this.values.clear();
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| 30 | };
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| 31 | DistinctSubscriber.prototype.notifyError = function (error) {
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| 32 | this._error(error);
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| 33 | };
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| 34 | DistinctSubscriber.prototype._next = function (value) {
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| 35 | if (this.keySelector) {
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| 36 | this._useKeySelector(value);
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| 37 | }
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| 38 | else {
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| 39 | this._finalizeNext(value, value);
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| 40 | }
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| 41 | };
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| 42 | DistinctSubscriber.prototype._useKeySelector = function (value) {
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| 43 | var key;
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| 44 | var destination = this.destination;
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| 45 | try {
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| 46 | key = this.keySelector(value);
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| 47 | }
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| 48 | catch (err) {
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| 49 | destination.error(err);
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| 50 | return;
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| 51 | }
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| 52 | this._finalizeNext(key, value);
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| 53 | };
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| 54 | DistinctSubscriber.prototype._finalizeNext = function (key, value) {
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| 55 | var values = this.values;
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| 56 | if (!values.has(key)) {
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| 57 | values.add(key);
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| 58 | this.destination.next(value);
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| 59 | }
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| 60 | };
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| 61 | return DistinctSubscriber;
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| 62 | }(SimpleOuterSubscriber));
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| 63 | export { DistinctSubscriber };
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| 64 | //# sourceMappingURL=distinct.js.map
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