Last change
on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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[6a3a178] | 1 | import { Subscriber } from '../Subscriber';
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| 2 | import { Subject } from '../Subject';
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| 3 |
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| 4 | /**
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| 5 | * Determines whether the ErrorObserver is closed or stopped or has a
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| 6 | * destination that is closed or stopped - in which case errors will
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| 7 | * need to be reported via a different mechanism.
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| 8 | * @param observer the observer
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| 9 | */
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| 10 | export function canReportError(observer: Subscriber<any> | Subject<any>): boolean {
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| 11 | while (observer) {
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| 12 | const { closed, destination, isStopped } = observer as any;
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| 13 | if (closed || isStopped) {
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| 14 | return false;
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| 15 | } else if (destination && destination instanceof Subscriber) {
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| 16 | observer = destination;
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| 17 | } else {
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| 18 | observer = null;
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| 19 | }
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| 20 | }
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| 21 | return true;
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| 22 | }
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