Automatic return type covariance for functions that return this?

[Andrej Mitrovic]

On 9/15/12, Ben Davis <entheh at cantab.net> wrote:
> Never mind, I found the answer in the 'templates' page of the spec:
>
> class Super {
>     T doStuff(this T)() { ...; return cast(T)this; }
> }
>
> Sub x = (new Sub()).doStuff();
>
> It seems a bit of a shame that I need the cast, but it's a small thing :)

Ah the template this solution, I always forget about that little
trick! Nicely done. :)