| 1 | import { Subscriber } from '../Subscriber';
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| 2 | import { noop } from '../util/noop';
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| 3 | import { isFunction } from '../util/isFunction';
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| 4 | export function tap(nextOrObserver, error, complete) {
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| 5 | return function tapOperatorFunction(source) {
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| 6 | return source.lift(new DoOperator(nextOrObserver, error, complete));
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| 7 | };
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| 8 | }
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| 9 | class DoOperator {
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| 10 | constructor(nextOrObserver, error, complete) {
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| 11 | this.nextOrObserver = nextOrObserver;
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| 12 | this.error = error;
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| 13 | this.complete = complete;
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| 14 | }
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| 15 | call(subscriber, source) {
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| 16 | return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));
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| 17 | }
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| 18 | }
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| 19 | class TapSubscriber extends Subscriber {
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| 20 | constructor(destination, observerOrNext, error, complete) {
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| 21 | super(destination);
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| 22 | this._tapNext = noop;
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| 23 | this._tapError = noop;
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| 24 | this._tapComplete = noop;
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| 25 | this._tapError = error || noop;
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| 26 | this._tapComplete = complete || noop;
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| 27 | if (isFunction(observerOrNext)) {
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| 28 | this._context = this;
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| 29 | this._tapNext = observerOrNext;
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| 30 | }
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| 31 | else if (observerOrNext) {
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| 32 | this._context = observerOrNext;
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| 33 | this._tapNext = observerOrNext.next || noop;
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| 34 | this._tapError = observerOrNext.error || noop;
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| 35 | this._tapComplete = observerOrNext.complete || noop;
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| 36 | }
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| 37 | }
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| 38 | _next(value) {
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| 39 | try {
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| 40 | this._tapNext.call(this._context, value);
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| 41 | }
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| 42 | catch (err) {
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| 43 | this.destination.error(err);
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| 44 | return;
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| 45 | }
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| 46 | this.destination.next(value);
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| 47 | }
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| 48 | _error(err) {
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| 49 | try {
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| 50 | this._tapError.call(this._context, err);
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| 51 | }
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| 52 | catch (err) {
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| 53 | this.destination.error(err);
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| 54 | return;
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| 55 | }
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| 56 | this.destination.error(err);
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| 57 | }
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| 58 | _complete() {
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| 59 | try {
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| 60 | this._tapComplete.call(this._context);
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| 61 | }
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| 62 | catch (err) {
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| 63 | this.destination.error(err);
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| 64 | return;
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| 65 | }
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| 66 | return this.destination.complete();
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| 67 | }
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| 68 | }
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| 69 | //# sourceMappingURL=tap.js.map |
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