|
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:
898 bytes
|
| Rev | Line | |
|---|
| [6a3a178] | 1 | import { Observable } from '../Observable';
|
|---|
| 2 | import { from } from './from';
|
|---|
| 3 | import { EMPTY } from './empty';
|
|---|
| 4 | export function using(resourceFactory, observableFactory) {
|
|---|
| 5 | return new Observable(subscriber => {
|
|---|
| 6 | let resource;
|
|---|
| 7 | try {
|
|---|
| 8 | resource = resourceFactory();
|
|---|
| 9 | }
|
|---|
| 10 | catch (err) {
|
|---|
| 11 | subscriber.error(err);
|
|---|
| 12 | return undefined;
|
|---|
| 13 | }
|
|---|
| 14 | let result;
|
|---|
| 15 | try {
|
|---|
| 16 | result = observableFactory(resource);
|
|---|
| 17 | }
|
|---|
| 18 | catch (err) {
|
|---|
| 19 | subscriber.error(err);
|
|---|
| 20 | return undefined;
|
|---|
| 21 | }
|
|---|
| 22 | const source = result ? from(result) : EMPTY;
|
|---|
| 23 | const subscription = source.subscribe(subscriber);
|
|---|
| 24 | return () => {
|
|---|
| 25 | subscription.unsubscribe();
|
|---|
| 26 | if (resource) {
|
|---|
| 27 | resource.unsubscribe();
|
|---|
| 28 | }
|
|---|
| 29 | };
|
|---|
| 30 | });
|
|---|
| 31 | }
|
|---|
| 32 | //# sourceMappingURL=using.js.map |
|---|
Note:
See
TracBrowser
for help on using the repository browser.
