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