Add production dependencies

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

@@ -0,0 +1,69 @@
+import { map } from './map';
+import { from } from '../observable/from';
+import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';
+export function switchMap(project, resultSelector) {
+    if (typeof resultSelector === 'function') {
+        return (source) => source.pipe(switchMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));
+    }
+    return (source) => source.lift(new SwitchMapOperator(project));
+}
+class SwitchMapOperator {
+    constructor(project) {
+        this.project = project;
+    }
+    call(subscriber, source) {
+        return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));
+    }
+}
+class SwitchMapSubscriber extends SimpleOuterSubscriber {
+    constructor(destination, project) {
+        super(destination);
+        this.project = project;
+        this.index = 0;
+    }
+    _next(value) {
+        let result;
+        const index = this.index++;
+        try {
+            result = this.project(value, index);
+        }
+        catch (error) {
+            this.destination.error(error);
+            return;
+        }
+        this._innerSub(result);
+    }
+    _innerSub(result) {
+        const innerSubscription = this.innerSubscription;
+        if (innerSubscription) {
+            innerSubscription.unsubscribe();
+        }
+        const innerSubscriber = new SimpleInnerSubscriber(this);
+        const destination = this.destination;
+        destination.add(innerSubscriber);
+        this.innerSubscription = innerSubscribe(result, innerSubscriber);
+        if (this.innerSubscription !== innerSubscriber) {
+            destination.add(this.innerSubscription);
+        }
+    }
+    _complete() {
+        const { innerSubscription } = this;
+        if (!innerSubscription || innerSubscription.closed) {
+            super._complete();
+        }
+        this.unsubscribe();
+    }
+    _unsubscribe() {
+        this.innerSubscription = undefined;
+    }
+    notifyComplete() {
+        this.innerSubscription = undefined;
+        if (this.isStopped) {
+            super._complete();
+        }
+    }
+    notifyNext(innerValue) {
+        this.destination.next(innerValue);
+    }
+}
+//# sourceMappingURL=switchMap.js.map