race.js
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/** PURE_IMPORTS_START tslib,_util_isArray,_fromArray,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { isArray } from '../util/isArray';
import { fromArray } from './fromArray';
import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function race() {
var observables = [];
for (var _i = 0; _i < arguments.length; _i++) {
observables[_i] = arguments[_i];
}
if (observables.length === 1) {
if (isArray(observables[0])) {
observables = observables[0];
}
else {
return observables[0];
}
}
return fromArray(observables, undefined).lift(new RaceOperator());
}
var RaceOperator = /*@__PURE__*/ (function () {
function RaceOperator() {
}
RaceOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new RaceSubscriber(subscriber));
};
return RaceOperator;
}());
export { RaceOperator };
var RaceSubscriber = /*@__PURE__*/ (function (_super) {
tslib_1.__extends(RaceSubscriber, _super);
function RaceSubscriber(destination) {
var _this = _super.call(this, destination) || this;
_this.hasFirst = false;
_this.observables = [];
_this.subscriptions = [];
return _this;
}
RaceSubscriber.prototype._next = function (observable) {
this.observables.push(observable);
};
RaceSubscriber.prototype._complete = function () {
var observables = this.observables;
var len = observables.length;
if (len === 0) {
this.destination.complete();
}
else {
for (var i = 0; i < len && !this.hasFirst; i++) {
var observable = observables[i];
var subscription = subscribeToResult(this, observable, undefined, i);
if (this.subscriptions) {
this.subscriptions.push(subscription);
}
this.add(subscription);
}
this.observables = null;
}
};
RaceSubscriber.prototype.notifyNext = function (_outerValue, innerValue, outerIndex) {
if (!this.hasFirst) {
this.hasFirst = true;
for (var i = 0; i < this.subscriptions.length; i++) {
if (i !== outerIndex) {
var subscription = this.subscriptions[i];
subscription.unsubscribe();
this.remove(subscription);
}
}
this.subscriptions = null;
}
this.destination.next(innerValue);
};
return RaceSubscriber;
}(OuterSubscriber));
export { RaceSubscriber };
//# sourceMappingURL=race.js.map