27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
import { map } from './map';
|
|
import { innerFrom } from '../observable/innerFrom';
|
|
import { operate } from '../util/lift';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
export function exhaustMap(project, resultSelector) {
|
|
if (resultSelector) {
|
|
return (source) => source.pipe(exhaustMap((a, i) => innerFrom(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));
|
|
}
|
|
return operate((source, subscriber) => {
|
|
let index = 0;
|
|
let innerSub = null;
|
|
let isComplete = false;
|
|
source.subscribe(createOperatorSubscriber(subscriber, (outerValue) => {
|
|
if (!innerSub) {
|
|
innerSub = createOperatorSubscriber(subscriber, undefined, () => {
|
|
innerSub = null;
|
|
isComplete && subscriber.complete();
|
|
});
|
|
innerFrom(project(outerValue, index++)).subscribe(innerSub);
|
|
}
|
|
}, () => {
|
|
isComplete = true;
|
|
!innerSub && subscriber.complete();
|
|
}));
|
|
});
|
|
}
|
|
//# sourceMappingURL=exhaustMap.js.map |