1 | /** PURE_IMPORTS_START tslib,_map,_observable_from,_innerSubscribe PURE_IMPORTS_END */
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2 | import * as tslib_1 from "tslib";
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3 | import { map } from './map';
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4 | import { from } from '../observable/from';
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5 | import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';
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6 | export function exhaustMap(project, resultSelector) {
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7 | if (resultSelector) {
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8 | return function (source) { return source.pipe(exhaustMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); })); };
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9 | }
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10 | return function (source) {
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11 | return source.lift(new ExhaustMapOperator(project));
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12 | };
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13 | }
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14 | var ExhaustMapOperator = /*@__PURE__*/ (function () {
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15 | function ExhaustMapOperator(project) {
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16 | this.project = project;
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17 | }
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18 | ExhaustMapOperator.prototype.call = function (subscriber, source) {
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19 | return source.subscribe(new ExhaustMapSubscriber(subscriber, this.project));
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20 | };
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21 | return ExhaustMapOperator;
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22 | }());
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23 | var ExhaustMapSubscriber = /*@__PURE__*/ (function (_super) {
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24 | tslib_1.__extends(ExhaustMapSubscriber, _super);
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25 | function ExhaustMapSubscriber(destination, project) {
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26 | var _this = _super.call(this, destination) || this;
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27 | _this.project = project;
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28 | _this.hasSubscription = false;
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29 | _this.hasCompleted = false;
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30 | _this.index = 0;
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31 | return _this;
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32 | }
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33 | ExhaustMapSubscriber.prototype._next = function (value) {
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34 | if (!this.hasSubscription) {
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35 | this.tryNext(value);
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36 | }
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37 | };
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38 | ExhaustMapSubscriber.prototype.tryNext = function (value) {
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39 | var result;
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40 | var index = this.index++;
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41 | try {
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42 | result = this.project(value, index);
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43 | }
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44 | catch (err) {
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45 | this.destination.error(err);
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46 | return;
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47 | }
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48 | this.hasSubscription = true;
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49 | this._innerSub(result);
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50 | };
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51 | ExhaustMapSubscriber.prototype._innerSub = function (result) {
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52 | var innerSubscriber = new SimpleInnerSubscriber(this);
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53 | var destination = this.destination;
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54 | destination.add(innerSubscriber);
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55 | var innerSubscription = innerSubscribe(result, innerSubscriber);
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56 | if (innerSubscription !== innerSubscriber) {
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57 | destination.add(innerSubscription);
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58 | }
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59 | };
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60 | ExhaustMapSubscriber.prototype._complete = function () {
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61 | this.hasCompleted = true;
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62 | if (!this.hasSubscription) {
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63 | this.destination.complete();
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64 | }
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65 | this.unsubscribe();
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66 | };
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67 | ExhaustMapSubscriber.prototype.notifyNext = function (innerValue) {
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68 | this.destination.next(innerValue);
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69 | };
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70 | ExhaustMapSubscriber.prototype.notifyError = function (err) {
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71 | this.destination.error(err);
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72 | };
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73 | ExhaustMapSubscriber.prototype.notifyComplete = function () {
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74 | this.hasSubscription = false;
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75 | if (this.hasCompleted) {
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76 | this.destination.complete();
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77 | }
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78 | };
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79 | return ExhaustMapSubscriber;
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80 | }(SimpleOuterSubscriber));
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81 | //# sourceMappingURL=exhaustMap.js.map
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