initial commit: scaffolding

1 files changed, 51 insertions, 0 deletions

diff --git a/node_modules/rxjs/src/internal/operators/exhaustAll.ts b/node_modules/rxjs/src/internal/operators/exhaustAll.ts
new file mode 100644
index 0000000..4a58a5e
--- /dev/null
+++ b/node_modules/rxjs/src/internal/operators/exhaustAll.ts
@@ -0,0 +1,51 @@
+import { OperatorFunction, ObservableInput, ObservedValueOf } from '../types';
+import { exhaustMap } from './exhaustMap';
+import { identity } from '../util/identity';
+
+/**
+ * Converts a higher-order Observable into a first-order Observable by dropping
+ * inner Observables while the previous inner Observable has not yet completed.
+ *
+ * <span class="informal">Flattens an Observable-of-Observables by dropping the
+ * next inner Observables while the current inner is still executing.</span>
+ *
+ * ![](exhaustAll.svg)
+ *
+ * `exhaustAll` subscribes to an Observable that emits Observables, also known as a
+ * higher-order Observable. Each time it observes one of these emitted inner
+ * Observables, the output Observable begins emitting the items emitted by that
+ * inner Observable. So far, it behaves like {@link mergeAll}. However,
+ * `exhaustAll` ignores every new inner Observable if the previous Observable has
+ * not yet completed. Once that one completes, it will accept and flatten the
+ * next inner Observable and repeat this process.
+ *
+ * ## Example
+ *
+ * Run a finite timer for each click, only if there is no currently active timer
+ *
+ * ```ts
+ * import { fromEvent, map, interval, take, exhaustAll } from 'rxjs';
+ *
+ * const clicks = fromEvent(document, 'click');
+ * const higherOrder = clicks.pipe(
+ *   map(() => interval(1000).pipe(take(5)))
+ * );
+ * const result = higherOrder.pipe(exhaustAll());
+ * result.subscribe(x => console.log(x));
+ * ```
+ *
+ * @see {@link combineLatestAll}
+ * @see {@link concatAll}
+ * @see {@link switchAll}
+ * @see {@link switchMap}
+ * @see {@link mergeAll}
+ * @see {@link exhaustMap}
+ * @see {@link zipAll}
+ *
+ * @return A function that returns an Observable that takes a source of
+ * Observables and propagates the first Observable exclusively until it
+ * completes before subscribing to the next.
+ */
+export function exhaustAll<O extends ObservableInput<any>>(): OperatorFunction<O, ObservedValueOf<O>> {
+  return exhaustMap(identity);
+}