78 lines
2.8 KiB
JavaScript
78 lines
2.8 KiB
JavaScript
/** 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, observable, i);
|
|
if (this.subscriptions) {
|
|
this.subscriptions.push(subscription);
|
|
}
|
|
this.add(subscription);
|
|
}
|
|
this.observables = null;
|
|
}
|
|
};
|
|
RaceSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
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
|