[Haskell-cafe] Higher Kinded Void
tom-lists-haskell-cafe-2013 at jaguarpaw.co.uk
Thu Jun 25 19:11:46 UTC 2015
On Thu, Jun 25, 2015 at 07:50:38PM +0530, Anupam Jain wrote:
> data VoidF a
> instance Functor VoidF where
> fmap = undefined
> Is there a reason something like this is not in the package void?
> Perhaps we could even have Void1 with kind * -> *, Void2 with kind *
> -> * -> * etc.
You could use 'Const Void', 'Const (Const Void)' etc..
(Const is in Control.Applicative)
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