.

node_modules/rxjs/dist/esm/internal/operators/switchMap.js

@@ -0,0 +1,24 @@
+import { innerFrom } from '../observable/innerFrom';
+import { operate } from '../util/lift';
+import { createOperatorSubscriber } from './OperatorSubscriber';
+export function switchMap(project, resultSelector) {
+    return operate((source, subscriber) => {
+        let innerSubscriber = null;
+        let index = 0;
+        let isComplete = false;
+        const checkComplete = () => isComplete && !innerSubscriber && subscriber.complete();
+        source.subscribe(createOperatorSubscriber(subscriber, (value) => {
+            innerSubscriber === null || innerSubscriber === void 0 ? void 0 : innerSubscriber.unsubscribe();
+            let innerIndex = 0;
+            const outerIndex = index++;
+            innerFrom(project(value, outerIndex)).subscribe((innerSubscriber = createOperatorSubscriber(subscriber, (innerValue) => subscriber.next(resultSelector ? resultSelector(value, innerValue, outerIndex, innerIndex++) : innerValue), () => {
+                innerSubscriber = null;
+                checkComplete();
+            })));
+        }, () => {
+            isComplete = true;
+            checkComplete();
+        }));
+    });
+}
+//# sourceMappingURL=switchMap.js.map