FEATURE: IOrderedAsyncEnumerable implementation about asyncenumerable

[kind-serge]

what is it supposed to do?

[otabekgb]

With it you can order the sequence. Sync version is IOrderedEnumerable

[kind-serge]

An IAsyncEnumerable should be used for streaming, not sure how IOrderedEnumerable can be applicable here - the source collection should not be stored in memory.
Do you have any specific use case?

[ndrwrbgs]

@TYROTOXIN It's possible in a streaming context - similar to IQbservable - where it is really the remote that is doing the sorting and it's just a signal to the consumer that it IS sorted, but no code in a library would ever be making a OrderedAsyncEnumerable directly.

To explain that better, a client would call a StreamSortedFromRemote(). The remote would create an IOrderedEnumerable, but then stream that back to the client (probably in batches). In this way, there's no concrete implementation of the OrderedAsyncEnumerable, but the interface does allow for some assumptions made in e.g. extension methods.

That said, I'm not sure what scenario this would enable that couldn't be accomplished by the calling code just assuming that the collection is ordered. The scenarios I can think of seem to be suited for

• Task<IOrderedEnumerable>
• IAsyncEnumerable
• Quite specific to a particular scenario making it probably best to just make that 'assumption' of sorted in the client code.

@otabekgb could you explain the scenario you'd need this for, for better musing about the solutions?

[kind-serge]

@otabekgb, I'm closing the suggestion due to lack of the input. Feel free to open if you have a concrete scenario.