wishthis/node_modules/rxjs/dist/esm5/internal/operators/retryWhen.js

import { innerFrom } from '../observable/innerFrom';
import { Subject } from '../Subject';
import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function retryWhen(notifier) {
    return operate(function (source, subscriber) {
        var innerSub;
        var syncResub = false;
        var errors$;
        var subscribeForRetryWhen = function () {
            innerSub = source.subscribe(createOperatorSubscriber(subscriber, undefined, undefined, function (err) {
                if (!errors$) {
                    errors$ = new Subject();
                    innerFrom(notifier(errors$)).subscribe(createOperatorSubscriber(subscriber, function () {
                        return innerSub ? subscribeForRetryWhen() : (syncResub = true);
                    }));
                }
                if (errors$) {
                    errors$.next(err);
                }
            }));
            if (syncResub) {
                innerSub.unsubscribe();
                innerSub = null;
                syncResub = false;
                subscribeForRetryWhen();
            }
        };
        subscribeForRetryWhen();
    });
}
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