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