| /** PURE_IMPORTS_START tslib,_util_subscribeToResult,_OuterSubscriber,_InnerSubscriber PURE_IMPORTS_END */ |
| import * as tslib_1 from "tslib"; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| import { OuterSubscriber } from '../OuterSubscriber'; |
| import { InnerSubscriber } from '../InnerSubscriber'; |
| export function mergeScan(accumulator, seed, concurrent) { |
| if (concurrent === void 0) { |
| concurrent = Number.POSITIVE_INFINITY; |
| } |
| return function (source) { return source.lift(new MergeScanOperator(accumulator, seed, concurrent)); }; |
| } |
| var MergeScanOperator = /*@__PURE__*/ (function () { |
| function MergeScanOperator(accumulator, seed, concurrent) { |
| this.accumulator = accumulator; |
| this.seed = seed; |
| this.concurrent = concurrent; |
| } |
| MergeScanOperator.prototype.call = function (subscriber, source) { |
| return source.subscribe(new MergeScanSubscriber(subscriber, this.accumulator, this.seed, this.concurrent)); |
| }; |
| return MergeScanOperator; |
| }()); |
| export { MergeScanOperator }; |
| var MergeScanSubscriber = /*@__PURE__*/ (function (_super) { |
| tslib_1.__extends(MergeScanSubscriber, _super); |
| function MergeScanSubscriber(destination, accumulator, acc, concurrent) { |
| var _this = _super.call(this, destination) || this; |
| _this.accumulator = accumulator; |
| _this.acc = acc; |
| _this.concurrent = concurrent; |
| _this.hasValue = false; |
| _this.hasCompleted = false; |
| _this.buffer = []; |
| _this.active = 0; |
| _this.index = 0; |
| return _this; |
| } |
| MergeScanSubscriber.prototype._next = function (value) { |
| if (this.active < this.concurrent) { |
| var index = this.index++; |
| var destination = this.destination; |
| var ish = void 0; |
| try { |
| var accumulator = this.accumulator; |
| ish = accumulator(this.acc, value, index); |
| } |
| catch (e) { |
| return destination.error(e); |
| } |
| this.active++; |
| this._innerSub(ish, value, index); |
| } |
| else { |
| this.buffer.push(value); |
| } |
| }; |
| MergeScanSubscriber.prototype._innerSub = function (ish, value, index) { |
| var innerSubscriber = new InnerSubscriber(this, undefined, undefined); |
| var destination = this.destination; |
| destination.add(innerSubscriber); |
| subscribeToResult(this, ish, value, index, innerSubscriber); |
| }; |
| MergeScanSubscriber.prototype._complete = function () { |
| this.hasCompleted = true; |
| if (this.active === 0 && this.buffer.length === 0) { |
| if (this.hasValue === false) { |
| this.destination.next(this.acc); |
| } |
| this.destination.complete(); |
| } |
| this.unsubscribe(); |
| }; |
| MergeScanSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| var destination = this.destination; |
| this.acc = innerValue; |
| this.hasValue = true; |
| destination.next(innerValue); |
| }; |
| MergeScanSubscriber.prototype.notifyComplete = function (innerSub) { |
| var buffer = this.buffer; |
| var destination = this.destination; |
| destination.remove(innerSub); |
| this.active--; |
| if (buffer.length > 0) { |
| this._next(buffer.shift()); |
| } |
| else if (this.active === 0 && this.hasCompleted) { |
| if (this.hasValue === false) { |
| this.destination.next(this.acc); |
| } |
| this.destination.complete(); |
| } |
| }; |
| return MergeScanSubscriber; |
| }(OuterSubscriber)); |
| export { MergeScanSubscriber }; |
| //# sourceMappingURL=mergeScan.js.map |