69 lines
2.1 KiB
JavaScript
69 lines
2.1 KiB
JavaScript
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import { Subscriber } from '../Subscriber';
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import { noop } from '../util/noop';
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import { isFunction } from '../util/isFunction';
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export function tap(nextOrObserver, error, complete) {
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return function tapOperatorFunction(source) {
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return source.lift(new DoOperator(nextOrObserver, error, complete));
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};
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}
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class DoOperator {
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constructor(nextOrObserver, error, complete) {
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this.nextOrObserver = nextOrObserver;
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this.error = error;
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this.complete = complete;
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}
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call(subscriber, source) {
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return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));
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}
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}
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class TapSubscriber extends Subscriber {
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constructor(destination, observerOrNext, error, complete) {
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super(destination);
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this._tapNext = noop;
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this._tapError = noop;
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this._tapComplete = noop;
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this._tapError = error || noop;
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this._tapComplete = complete || noop;
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if (isFunction(observerOrNext)) {
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this._context = this;
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this._tapNext = observerOrNext;
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}
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else if (observerOrNext) {
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this._context = observerOrNext;
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this._tapNext = observerOrNext.next || noop;
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this._tapError = observerOrNext.error || noop;
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this._tapComplete = observerOrNext.complete || noop;
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}
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}
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_next(value) {
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try {
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this._tapNext.call(this._context, value);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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this.destination.next(value);
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}
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_error(err) {
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try {
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this._tapError.call(this._context, err);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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this.destination.error(err);
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}
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_complete() {
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try {
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this._tapComplete.call(this._context);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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return this.destination.complete();
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}
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}
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//# sourceMappingURL=tap.js.map
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