Is there any plans to make working signals in D?

[deadalnix]

On Wednesday, 24 April 2013 at 08:27:15 UTC, Denis Shelomovskij 
wrote:
> 19.04.2013 11:45, deadalnix пишет:
>> On Friday, 19 April 2013 at 07:31:16 UTC, Denis Shelomovskij 
>> wrote:
>>> Another try to describe the problem:
>>>
>>> When I get a delegate, I'd like to use it unless it become 
>>> invalid.
>>
>> How does using an object solve that ?
>
> Unless this is a struct-member delegate (which is not often 
> used anyway and can be marked as dangerous e.g.):
> ---
> T delegate(A) del = ...;
> rt_attachDisposeEvent(_d_toObject(del.ptr), 
> &onDelegateDisposed);
> ---

I still see many possibilities without changing the language. For 
instance, allowing to attach dispose event to something else than 
an object.