Is there any plans to make working signals in D?

[Denis Shelomovskij]

17.04.2013 19:47, deadalnix пишет:
> On Wednesday, 17 April 2013 at 10:35:08 UTC, Denis Shelomovskij wrote:
>>> Can you explain what is the problem ?
>>
>> Code in Issue 9603 doesn't work.
>>
>
> That is not explaining what is the problem. This should contains at least :
>   - Why it doesn't work.

No ability to tell when a delegate will be destroyed (currently it isn't 
even destroyed when it should, see Issue 9602).
http://d.puremagic.com/issues/show_bug.cgi?id=9602

>   - What is the fundamental problem.

When a delegate is created information about it's outer scope is lost 
instead of being stored in it's ptr.

>   - Why this fundamental problem is a language issue and not a lib one.

Looks self-evident.

>   - How does you proposition solve it.

It stores the information about delegate's outer scope wasting (oh God, 
how many, especially in contrast to GC allocation) a few bytes.

>
> Right now, the only element you have been able to provide are :
>   - signal accept delegate from object.
>   - So we must make all delegate object.
>
> This is a very poor argumentation as the only reasonable answer to 1
> without more input is go fix signal or raise a bug about signal.

As everything I have written above is known, I still don't understand 
why you are telling about signal fixing as a main problem as it is just 
an example of problems that occurs when we throw away outer scope 
information without any practical reason, IMO.

-- 
Денис В. Шеломовский
Denis V. Shelomovskij