16 lines
640 B
JavaScript
16 lines
640 B
JavaScript
|
import { EmptyError } from '../util/EmptyError';
|
||
|
|
import { operate } from '../util/lift';
|
||
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
||
|
|
export function throwIfEmpty(errorFactory = defaultErrorFactory) {
|
||
|
|
return operate((source, subscriber) => {
|
||
|
|
let hasValue = false;
|
||
|
|
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
||
|
|
hasValue = true;
|
||
|
|
subscriber.next(value);
|
||
|
|
}, () => (hasValue ? subscriber.complete() : subscriber.error(errorFactory()))));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
function defaultErrorFactory() {
|
||
|
|
return new EmptyError();
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=throwIfEmpty.js.map
|