[Dlang-study] [lifetime] Few root decisions to take on RC classes

[Jakob Bornecrantz]

On Friday, 30 October 2015 at 21:31:56 UTC, Andrei Alexandrescu 
wrote:
> A few matters Walter and I just discussed and wanted to submit 
> for scrutiny:
>
> * @rc classes shall not be single-rooted. Rationale: there is 
> no strong advantage in it and it would force all @rc classes to 
> embed a vptr. This has been already discussed and largely 
> agreed upon in this group.

Have you done any investigation how this effects exception 
handling and
dynamic upcasts?

Cheers, Jakob

PS: I might have a copy of this message in the moderation queue, 
please ignore.