On Fri, Jul 17, 2009 at 4:38 PM, Conor McBride<co...@strictlypositive.org> wrote:
> class Private x where > > public :: (forall x. Public x => x -> y) -> y > public f = f Pike > > data Pike = Pike > instance Private Pike > instance Public Pike > > -------------------------------------- > > But if I don't tell 'em Pike, I've ensured that > blah can only be used in the argument to public. Well I appreciated this bit even if no-one else did! :-) Also, that's a nifty trick if it works! D _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
