RFC: reference counted Throwable

[Ola Fosheim Grostad via Digitalmars-d]

On Saturday, 20 September 2014 at 12:27:23 UTC, Jacob Carlborg 
wrote:
> Assuming this would eventually be implemented for regular 
> classes, it would be nice if it could be made compatible with 
> Objective-C ARC [1].
>
> [1] http://clang.llvm.org/docs/AutomaticReferenceCounting.html

Isn't Objective-C ARC known to be terribly efficient?