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class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">import { subscribeToResult } from '../util/subscribeToResult'; import { OuterSubscriber } from '../OuterSubscriber'; /* tslint:disable:max-line-length */ export function mergeMap(project, resultSelector, concurrent) { if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; } if (typeof resultSelector === 'number') { concurrent = resultSelector; resultSelector = null; } return this.lift(new MergeMapOperator(project, resultSelector, concurrent)); } export var MergeMapOperator = (function () { function MergeMapOperator(project, resultSelector, concurrent) { if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; } this.project = project; this.resultSelector = resultSelector; this.concurrent = concurrent; } MergeMapOperator.prototype.call = function (observer, source) { return source._subscribe(new MergeMapSubscriber(observer, this.project, this.resultSelector, this.concurrent)); }; return MergeMapOperator; }()); /** * We need this JSDoc comment for affecting ESDoc. * @ignore * @extends {Ignored} */ export var MergeMapSubscriber = (function (_super) { __extends(MergeMapSubscriber, _super); function MergeMapSubscriber(destination, project, resultSelector, concurrent) { if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; } _super.call(this, destination); this.project = project; this.resultSelector = resultSelector; this.concurrent = concurrent; this.hasCompleted = false; this.buffer = []; this.active = 0; this.index = 0; } MergeMapSubscriber.prototype._next = function (value) { if (this.active < this.concurrent) { this._tryNext(value); } else { this.buffer.push(value); } }; MergeMapSubscriber.prototype._tryNext = function (value) { var result; var index = this.index++; try { result = this.project(value, index); } catch (err) { this.destination.error(err); return; } this.active++; this._innerSub(result, value, index); }; MergeMapSubscriber.prototype._innerSub = function (ish, value, index) { this.add(subscribeToResult(this, ish, value, index)); }; MergeMapSubscriber.prototype._complete = function () { this.hasCompleted = true; if (this.active === 0 && this.buffer.length === 0) { this.destination.complete(); } }; MergeMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) { if (this.resultSelector) { this._notifyResultSelector(outerValue, innerValue, outerIndex, innerIndex); } else { this.destination.next(innerValue); } }; MergeMapSubscriber.prototype._notifyResultSelector = function (outerValue, innerValue, outerIndex, innerIndex) { var result; try { result = this.resultSelector(outerValue, innerValue, outerIndex, innerIndex); } catch (err) { this.destination.error(err); return; } this.destination.next(result); }; MergeMapSubscriber.prototype.notifyComplete = function (innerSub) { var buffer = this.buffer; this.remove(innerSub); this.active--; if (buffer.length > 0) { this._next(buffer.shift()); } else if (this.active === 0 && this.hasCompleted) { this.destination.complete(); } }; return MergeMapSubscriber; }(OuterSubscriber)); //# sourceMappingURL=mergeMap.js.map</code></pre> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc<span data-ice="esdocVersion">(0.4.8)</span></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> <script src="script/inner-link.js"></script> <script src="script/patch-for-local.js"></script> </body> </html>