biobulkbende.org/node_modules/rxjs/_esm2015/util/toSubscriber.js
2020-09-16 14:23:28 +02:00

18 lines
689 B
JavaScript

import { Subscriber } from '../Subscriber';
import { rxSubscriber as rxSubscriberSymbol } from '../symbol/rxSubscriber';
import { empty as emptyObserver } from '../Observer';
export function toSubscriber(nextOrObserver, error, complete) {
if (nextOrObserver) {
if (nextOrObserver instanceof Subscriber) {
return nextOrObserver;
}
if (nextOrObserver[rxSubscriberSymbol]) {
return nextOrObserver[rxSubscriberSymbol]();
}
}
if (!nextOrObserver && !error && !complete) {
return new Subscriber(emptyObserver);
}
return new Subscriber(nextOrObserver, error, complete);
}
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