So, apparently detecting refness has been solved for months, maybe years.

[Janice Caron]

On 12/15/07, downs <default_357-line at yahoo.de> wrote:
> Should there be a place to collect metaprogramming thingies like this so people
> don't have to reinvent the wheel?
>
>  I vote std.meta! :)

I would have thought std.traits.