115 lines
No EOL
4.3 KiB
JavaScript
115 lines
No EOL
4.3 KiB
JavaScript
"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 isScheduler_1 = require("../util/isScheduler");
|
|
var isArray_1 = require("../util/isArray");
|
|
var OuterSubscriber_1 = require("../OuterSubscriber");
|
|
var subscribeToResult_1 = require("../util/subscribeToResult");
|
|
var fromArray_1 = require("./fromArray");
|
|
var NONE = {};
|
|
function combineLatest() {
|
|
var observables = [];
|
|
for (var _i = 0; _i < arguments.length; _i++) {
|
|
observables[_i] = arguments[_i];
|
|
}
|
|
var resultSelector = null;
|
|
var scheduler = null;
|
|
if (isScheduler_1.isScheduler(observables[observables.length - 1])) {
|
|
scheduler = observables.pop();
|
|
}
|
|
if (typeof observables[observables.length - 1] === 'function') {
|
|
resultSelector = observables.pop();
|
|
}
|
|
if (observables.length === 1 && isArray_1.isArray(observables[0])) {
|
|
observables = observables[0];
|
|
}
|
|
return fromArray_1.fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));
|
|
}
|
|
exports.combineLatest = combineLatest;
|
|
var CombineLatestOperator = (function () {
|
|
function CombineLatestOperator(resultSelector) {
|
|
this.resultSelector = resultSelector;
|
|
}
|
|
CombineLatestOperator.prototype.call = function (subscriber, source) {
|
|
return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));
|
|
};
|
|
return CombineLatestOperator;
|
|
}());
|
|
exports.CombineLatestOperator = CombineLatestOperator;
|
|
var CombineLatestSubscriber = (function (_super) {
|
|
__extends(CombineLatestSubscriber, _super);
|
|
function CombineLatestSubscriber(destination, resultSelector) {
|
|
var _this = _super.call(this, destination) || this;
|
|
_this.resultSelector = resultSelector;
|
|
_this.active = 0;
|
|
_this.values = [];
|
|
_this.observables = [];
|
|
return _this;
|
|
}
|
|
CombineLatestSubscriber.prototype._next = function (observable) {
|
|
this.values.push(NONE);
|
|
this.observables.push(observable);
|
|
};
|
|
CombineLatestSubscriber.prototype._complete = function () {
|
|
var observables = this.observables;
|
|
var len = observables.length;
|
|
if (len === 0) {
|
|
this.destination.complete();
|
|
}
|
|
else {
|
|
this.active = len;
|
|
this.toRespond = len;
|
|
for (var i = 0; i < len; i++) {
|
|
var observable = observables[i];
|
|
this.add(subscribeToResult_1.subscribeToResult(this, observable, observable, i));
|
|
}
|
|
}
|
|
};
|
|
CombineLatestSubscriber.prototype.notifyComplete = function (unused) {
|
|
if ((this.active -= 1) === 0) {
|
|
this.destination.complete();
|
|
}
|
|
};
|
|
CombineLatestSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
var values = this.values;
|
|
var oldVal = values[outerIndex];
|
|
var toRespond = !this.toRespond
|
|
? 0
|
|
: oldVal === NONE ? --this.toRespond : this.toRespond;
|
|
values[outerIndex] = innerValue;
|
|
if (toRespond === 0) {
|
|
if (this.resultSelector) {
|
|
this._tryResultSelector(values);
|
|
}
|
|
else {
|
|
this.destination.next(values.slice());
|
|
}
|
|
}
|
|
};
|
|
CombineLatestSubscriber.prototype._tryResultSelector = function (values) {
|
|
var result;
|
|
try {
|
|
result = this.resultSelector.apply(this, values);
|
|
}
|
|
catch (err) {
|
|
this.destination.error(err);
|
|
return;
|
|
}
|
|
this.destination.next(result);
|
|
};
|
|
return CombineLatestSubscriber;
|
|
}(OuterSubscriber_1.OuterSubscriber));
|
|
exports.CombineLatestSubscriber = CombineLatestSubscriber;
|
|
//# sourceMappingURL=combineLatest.js.map
|