Future of D

[Sergey]

On Sunday, 29 October 2023 at 21:32:18 UTC, Jonathan M Davis 
wrote:
> If you have a good use case, then it may make sense to expose 
> the state information, but as was pointed out in your previous 
> PR, exposing that state information is likely to mislead 
> programmers and risk causing them to write code that has race 
> conditions due to out-of-date state information - and no one 
> reviewing the PR saw how exposing that state information would 
> actually enable anything. So, please provide a use case where 
> exposing that state information actually enables something that 
> you can't do without it.
>
> - Jonathan M Davis

Hi Jonathan.
The author of the topic came to D from C#. And in the C# they 
have this feature. On of the example is to check the status of 
the tasks - if it was successfully finished, canceled, killed by 
exception.
Some simple example can be found here: 
https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.taskstatus?view=net-7.0