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node_modules/rxjs/_esm2015/internal/operators/tap.js

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