37 lines
1.5 KiB
JavaScript
37 lines
1.5 KiB
JavaScript
import { operate } from '../util/lift';
|
|
import { innerFrom } from '../observable/innerFrom';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
export function audit(durationSelector) {
|
|
return operate((source, subscriber) => {
|
|
let hasValue = false;
|
|
let lastValue = null;
|
|
let durationSubscriber = null;
|
|
let isComplete = false;
|
|
const endDuration = () => {
|
|
durationSubscriber === null || durationSubscriber === void 0 ? void 0 : durationSubscriber.unsubscribe();
|
|
durationSubscriber = null;
|
|
if (hasValue) {
|
|
hasValue = false;
|
|
const value = lastValue;
|
|
lastValue = null;
|
|
subscriber.next(value);
|
|
}
|
|
isComplete && subscriber.complete();
|
|
};
|
|
const cleanupDuration = () => {
|
|
durationSubscriber = null;
|
|
isComplete && subscriber.complete();
|
|
};
|
|
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
|
hasValue = true;
|
|
lastValue = value;
|
|
if (!durationSubscriber) {
|
|
innerFrom(durationSelector(value)).subscribe((durationSubscriber = createOperatorSubscriber(subscriber, endDuration, cleanupDuration)));
|
|
}
|
|
}, () => {
|
|
isComplete = true;
|
|
(!hasValue || !durationSubscriber || durationSubscriber.closed) && subscriber.complete();
|
|
}));
|
|
});
|
|
}
|
|
//# sourceMappingURL=audit.js.map
|