forall and class contexts

Ashley Yakeley ashley@semantic.org
Wed, 16 Oct 2002 01:07:40 -0700


At 2002-10-16 00:40, Simon Peyton-Jones wrote:

>Not currently, but I think it makes sense, and I'll implement it if
>enough people ask.

That's two. FWIW, my pint offer still stands.

>Presumably you mean 'instance' not 'class'?  A class decl always has a
>type variable after the =>; thus ...=> C a.

Unless Wolfgang meant

  class (Eq (forall a. t a), Monad t) => C t



-- 
Ashley Yakeley, Seattle WA