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"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
}
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var tryCatch_1 = require("../util/tryCatch");
var errorObject_1 = require("../util/errorObject");
var subscribeToResult_1 = require("../util/subscribeToResult");
var OuterSubscriber_1 = require("../OuterSubscriber");
var InnerSubscriber_1 = require("../InnerSubscriber");
function mergeScan(accumulator, seed, concurrent) {
if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
return function (source) { return source.lift(new MergeScanOperator(accumulator, seed, concurrent)); };
}
exports.mergeScan = mergeScan;
var MergeScanOperator = (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;
}());
exports.MergeScanOperator = MergeScanOperator;
var MergeScanSubscriber = (function (_super) {
__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 ish = tryCatch_1.tryCatch(this.accumulator)(this.acc, value);
var destination = this.destination;
if (ish === errorObject_1.errorObject) {
destination.error(errorObject_1.errorObject.e);
}
else {
this.active++;
this._innerSub(ish, value, index);
}
}
else {
this.buffer.push(value);
}
};
MergeScanSubscriber.prototype._innerSub = function (ish, value, index) {
var innerSubscriber = new InnerSubscriber_1.InnerSubscriber(this, undefined, undefined);
this.add(innerSubscriber);
subscribeToResult_1.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();
}
};
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;
this.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_1.OuterSubscriber));
exports.MergeScanSubscriber = MergeScanSubscriber;
//# sourceMappingURL=mergeScan.js.map
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