Why no multiple-dispatch?

[Idan Arye via Digitalmars-d-learn]

On Monday, 25 August 2014 at 00:36:40 UTC, Vladimir Panteleev 
wrote:
> On Monday, 25 August 2014 at 00:20:26 UTC, Vladimir Panteleev 
> wrote:
>>> dynamic!ReactSpecialization(me, other);
>
> Here's a very basic implementation:
>
> http://dpaste.dzfl.pl/5150ca9c13f4
>
> Idan Arye is also working on functional pattern matching for 
> object references:
>
> https://github.com/D-Programming-Language/phobos/pull/1266

And here I was struggling to think of a way to efficiently check 
a tuple against a typetuple, neglecting to recall the rarely used 
continue-to-label...

Thanks! I'm gonna borrow that idea for `castSwitch`.