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86 lines
3.3 KiB
JavaScript
86 lines
3.3 KiB
JavaScript
/** PURE_IMPORTS_START tslib,_OuterSubscriber,_InnerSubscriber,_util_subscribeToResult,_map,_observable_from PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { OuterSubscriber } from '../OuterSubscriber';
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import { InnerSubscriber } from '../InnerSubscriber';
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import { subscribeToResult } from '../util/subscribeToResult';
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import { map } from './map';
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import { from } from '../observable/from';
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export function exhaustMap(project, resultSelector) {
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if (resultSelector) {
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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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}
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return function (source) {
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return source.lift(new ExhaustMapOperator(project));
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};
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}
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var ExhaustMapOperator = /*@__PURE__*/ (function () {
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function ExhaustMapOperator(project) {
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this.project = project;
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}
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ExhaustMapOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new ExhaustMapSubscriber(subscriber, this.project));
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};
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return ExhaustMapOperator;
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}());
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var ExhaustMapSubscriber = /*@__PURE__*/ (function (_super) {
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tslib_1.__extends(ExhaustMapSubscriber, _super);
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function ExhaustMapSubscriber(destination, project) {
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var _this = _super.call(this, destination) || this;
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_this.project = project;
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_this.hasSubscription = false;
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_this.hasCompleted = false;
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_this.index = 0;
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return _this;
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}
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ExhaustMapSubscriber.prototype._next = function (value) {
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if (!this.hasSubscription) {
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this.tryNext(value);
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}
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};
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ExhaustMapSubscriber.prototype.tryNext = function (value) {
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var result;
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var index = this.index++;
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try {
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result = this.project(value, index);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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this.hasSubscription = true;
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this._innerSub(result, value, index);
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};
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ExhaustMapSubscriber.prototype._innerSub = function (result, value, index) {
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var innerSubscriber = new InnerSubscriber(this, value, index);
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var destination = this.destination;
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destination.add(innerSubscriber);
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var innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);
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if (innerSubscription !== innerSubscriber) {
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destination.add(innerSubscription);
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}
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};
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ExhaustMapSubscriber.prototype._complete = function () {
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this.hasCompleted = true;
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if (!this.hasSubscription) {
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this.destination.complete();
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}
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this.unsubscribe();
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};
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ExhaustMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
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this.destination.next(innerValue);
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};
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ExhaustMapSubscriber.prototype.notifyError = function (err) {
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this.destination.error(err);
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};
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ExhaustMapSubscriber.prototype.notifyComplete = function (innerSub) {
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var destination = this.destination;
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destination.remove(innerSub);
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this.hasSubscription = false;
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if (this.hasCompleted) {
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this.destination.complete();
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}
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};
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return ExhaustMapSubscriber;
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}(OuterSubscriber));
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//# sourceMappingURL=exhaustMap.js.map
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