source: trip-planner-front/node_modules/rxjs/src/internal/util/subscribeToIterable.ts

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 830 bytes
Line 
1import { Subscriber } from '../Subscriber';
2import { iterator as Symbol_iterator } from '../symbol/iterator';
3
4export const subscribeToIterable = <T>(iterable: Iterable<T>) => (subscriber: Subscriber<T>) => {
5 const iterator = (iterable as any)[Symbol_iterator]();
6
7 do {
8 let item: IteratorResult<T>;
9 try {
10 item = iterator.next();
11 } catch (err) {
12 subscriber.error(err);
13 return subscriber;
14 }
15 if (item.done) {
16 subscriber.complete();
17 break;
18 }
19 subscriber.next(item.value);
20 if (subscriber.closed) {
21 break;
22 }
23 } while (true);
24
25 // Finalize the iterator if it happens to be a Generator
26 if (typeof iterator.return === 'function') {
27 subscriber.add(() => {
28 if (iterator.return) {
29 iterator.return();
30 }
31 });
32 }
33
34 return subscriber;
35};
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