The problem with the D GC

[Benji Smith]

The only comment I'd like to add is this:

At the same time as we're thinking about how to use a precise collector 
instead of a conservative collector, we should also think about how to 
implement a generational copying collector, since it might be necessary 
to add new constructs to the core language (pointer pinning, for 
example) to facilitate the new collector semantics.

--benji