102 lines
4.1 KiB
JavaScript
102 lines
4.1 KiB
JavaScript
"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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var OuterSubscriber_1 = require('../OuterSubscriber');
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var subscribeToResult_1 = require('../util/subscribeToResult');
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function mergeMapTo(observable, resultSelector, concurrent) {
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if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
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return this.lift(new MergeMapToOperator(observable, resultSelector, concurrent));
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}
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exports.mergeMapTo = mergeMapTo;
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// TODO: Figure out correct signature here: an Operator<Observable<T>, R2>
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// needs to implement call(observer: Subscriber<R2>): Subscriber<Observable<T>>
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var MergeMapToOperator = (function () {
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function MergeMapToOperator(ish, resultSelector, concurrent) {
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if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
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this.ish = ish;
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this.resultSelector = resultSelector;
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this.concurrent = concurrent;
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}
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MergeMapToOperator.prototype.call = function (observer) {
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return new MergeMapToSubscriber(observer, this.ish, this.resultSelector, this.concurrent);
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};
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return MergeMapToOperator;
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}());
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exports.MergeMapToOperator = MergeMapToOperator;
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var MergeMapToSubscriber = (function (_super) {
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__extends(MergeMapToSubscriber, _super);
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function MergeMapToSubscriber(destination, ish, resultSelector, concurrent) {
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if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
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_super.call(this, destination);
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this.ish = ish;
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this.resultSelector = resultSelector;
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this.concurrent = concurrent;
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this.hasCompleted = false;
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this.buffer = [];
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this.active = 0;
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this.index = 0;
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}
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MergeMapToSubscriber.prototype._next = function (value) {
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if (this.active < this.concurrent) {
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var resultSelector = this.resultSelector;
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var index = this.index++;
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var ish = this.ish;
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var destination = this.destination;
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this.active++;
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this._innerSub(ish, destination, resultSelector, value, index);
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}
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else {
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this.buffer.push(value);
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}
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};
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MergeMapToSubscriber.prototype._innerSub = function (ish, destination, resultSelector, value, index) {
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this.add(subscribeToResult_1.subscribeToResult(this, ish, value, index));
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};
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MergeMapToSubscriber.prototype._complete = function () {
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this.hasCompleted = true;
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if (this.active === 0 && this.buffer.length === 0) {
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this.destination.complete();
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}
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};
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MergeMapToSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
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var _a = this, resultSelector = _a.resultSelector, destination = _a.destination;
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if (resultSelector) {
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this.trySelectResult(outerValue, innerValue, outerIndex, innerIndex);
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}
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else {
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destination.next(innerValue);
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}
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};
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MergeMapToSubscriber.prototype.trySelectResult = function (outerValue, innerValue, outerIndex, innerIndex) {
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var _a = this, resultSelector = _a.resultSelector, destination = _a.destination;
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var result;
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try {
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result = resultSelector(outerValue, innerValue, outerIndex, innerIndex);
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}
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catch (err) {
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destination.error(err);
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return;
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}
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destination.next(result);
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};
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MergeMapToSubscriber.prototype.notifyError = function (err) {
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this.destination.error(err);
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};
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MergeMapToSubscriber.prototype.notifyComplete = function (innerSub) {
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var buffer = this.buffer;
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this.remove(innerSub);
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this.active--;
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if (buffer.length > 0) {
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this._next(buffer.shift());
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}
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else if (this.active === 0 && this.hasCompleted) {
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this.destination.complete();
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}
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};
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return MergeMapToSubscriber;
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}(OuterSubscriber_1.OuterSubscriber));
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exports.MergeMapToSubscriber = MergeMapToSubscriber;
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//# sourceMappingURL=mergeMapTo.js.map
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