wishthis/node_modules/rxjs/_esm2015/internal/util/toSubscriber.js

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2022-01-21 08:28:41 +00:00
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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