Mac Apps That Use Garbage Collection Must Move to ARC

[Walter Bright via Digitalmars-d]

On 2/25/2015 7:27 PM, deadalnix wrote:
> On Thursday, 26 February 2015 at 02:48:15 UTC, Walter Bright wrote:
>> Writing a generational collector for D is possible right now with no language
>> changes, it's just that nobody has bothered to do it. Don't need write
>> barriers for it, either.
> How are you planning to track assignment a pointer to the young generation in
> the old generation ? Because if you plan to rescan the whole old generation,
> this is not exactly a generational GC.

A lot of benefit simply came from compacting all the remaining used allocations 
together, essentially defragging the memory.