--- /dev/null
+import { Observable } from '../Observable';
+import { ReplaySubject } from '../ReplaySubject';
+import { multicast } from './multicast';
+import { ConnectableObservable } from '../observable/ConnectableObservable';
+import { UnaryFunction, MonoTypeOperatorFunction, OperatorFunction, SchedulerLike, ObservableInput, ObservedValueOf } from '../types';
+
+/* tslint:disable:max-line-length */
+export function publishReplay<T>(bufferSize?: number, windowTime?: number, scheduler?: SchedulerLike): MonoTypeOperatorFunction<T>;
+export function publishReplay<T, O extends ObservableInput<any>>(bufferSize?: number, windowTime?: number, selector?: (shared: Observable<T>) => O, scheduler?: SchedulerLike): OperatorFunction<T, ObservedValueOf<O>>;
+/* tslint:enable:max-line-length */
+
+export function publishReplay<T, R>(bufferSize?: number,
+ windowTime?: number,
+ selectorOrScheduler?: SchedulerLike | OperatorFunction<T, R>,
+ scheduler?: SchedulerLike): UnaryFunction<Observable<T>, ConnectableObservable<R>> {
+
+ if (selectorOrScheduler && typeof selectorOrScheduler !== 'function') {
+ scheduler = selectorOrScheduler;
+ }
+
+ const selector = typeof selectorOrScheduler === 'function' ? selectorOrScheduler : undefined;
+ const subject = new ReplaySubject<T>(bufferSize, windowTime, scheduler);
+
+ return (source: Observable<T>) => multicast(() => subject, selector)(source) as ConnectableObservable<R>;
+}