Possibility of non stop-the-world GC in the future?

[John Colvin]

On Monday, 18 February 2013 at 18:00:58 UTC, Benjamin Thaut wrote:
> Am 18.02.2013 18:49, schrieb JoeCoder:
>>
>> 1.  A @nogc attribute.  This would work similarly to 
>> pure/safe/nothrow
>> and would check at compile time that annotated functions or 
>> any they
>> call allocate any memory enforced by the GC.  Then phobos 
>> would no
>> longer be a "landmine" for those with realtime requirements.
>>
>
> I really would love to have that too. The problem with this 
> still would be exceptions because D throws by reference and not 
> by value like C++. To make this work there would be the need to 
> add a special Exception allocator and make the compiler emit 
> delete calls in case the exception is caught and not rethrown 
> or something similar.
>
> Kind Regards
> Benjamin Thaut

perhaps a @nogc attribute that forbade everything *except* 
exceptions to use the GC would be still useful. After all, 
exceptions probably aren't going to be used in the normal 
execution path of high performance code.