d future or plans for d3

[Vladimir Panteleev]

On Sunday, 18 December 2011 at 23:31:03 UTC, Timon Gehr wrote:
> On 12/19/2011 12:24 AM, Vladimir Panteleev wrote:
>> On Sunday, 18 December 2011 at 23:18:22 UTC, Timon Gehr wrote:
>>> You are right. I have had in mind a generational GC that uses 
>>> a
>>> copying collector for the nursery as this is what most
>>> state-of-the-art VM GCs do.
>> These changes are too invasive for the language at this point, 
>> I
>> believe. We need to work with what we have.
>
> I disagree. Code that relies on other semantics would just have 
> to use conservative GC.

Please elaborate on how you would hypothetically change D to 
accustom such changes. I am having trouble imagining such an 
implementation that would not have a considerable impact on D's 
performance.