public static IAsyncObservable <TSource> Aggregate <TSource>(this IAsyncObservable <TSource> source, Func <TSource, TSource, ValueTask <TSource> > func)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (func == null)
{
throw new ArgumentNullException(nameof(func));
}
return(Create <TSource>(observer => source.SubscribeSafeAsync(AsyncObserver.Aggregate(observer, func))));
}
public static IAsyncObservable <TResult> Aggregate <TSource, TAccumulate, TResult>(this IAsyncObservable <TSource> source, TAccumulate seed, Func <TAccumulate, TSource, Task <TAccumulate> > func, Func <TAccumulate, Task <TResult> > resultSelector)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (resultSelector == null)
{
throw new ArgumentNullException(nameof(resultSelector));
}
if (func == null)
{
throw new ArgumentNullException(nameof(func));
}
return(Create <TResult>(observer => source.SubscribeSafeAsync(AsyncObserver.Aggregate(observer, seed, func, resultSelector))));
}