40 lines
1.7 KiB
Plaintext
40 lines
1.7 KiB
Plaintext
import { isFunction } from '../util/isFunction';
|
|
import { operate } from '../util/lift';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
import { identity } from '../util/identity';
|
|
export function tap(observerOrNext, error, complete) {
|
|
const tapObserver = isFunction(observerOrNext) || error || complete
|
|
?
|
|
{ next: observerOrNext, error, complete }
|
|
: observerOrNext;
|
|
return tapObserver
|
|
? operate((source, subscriber) => {
|
|
var _a;
|
|
(_a = tapObserver.subscribe) === null || _a === void 0 ? void 0 : _a.call(tapObserver);
|
|
let isUnsub = true;
|
|
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
|
var _a;
|
|
(_a = tapObserver.next) === null || _a === void 0 ? void 0 : _a.call(tapObserver, value);
|
|
subscriber.next(value);
|
|
}, () => {
|
|
var _a;
|
|
isUnsub = false;
|
|
(_a = tapObserver.complete) === null || _a === void 0 ? void 0 : _a.call(tapObserver);
|
|
subscriber.complete();
|
|
}, (err) => {
|
|
var _a;
|
|
isUnsub = false;
|
|
(_a = tapObserver.error) === null || _a === void 0 ? void 0 : _a.call(tapObserver, err);
|
|
subscriber.error(err);
|
|
}, () => {
|
|
var _a, _b;
|
|
if (isUnsub) {
|
|
(_a = tapObserver.unsubscribe) === null || _a === void 0 ? void 0 : _a.call(tapObserver);
|
|
}
|
|
(_b = tapObserver.finalize) === null || _b === void 0 ? void 0 : _b.call(tapObserver);
|
|
}));
|
|
})
|
|
:
|
|
identity;
|
|
}
|
|
//# sourceMappingURL=tap.js.map |