On Fri, Sep 10, 2010 at 10:34:04AM +0200, Nils Schweinsberg wrote: > I just wondered if you can define Applicative instances for arrows? > Basicly what I thought of is: > > I have a type for my arrow which is "CollectA" (using HXT here): > > type CollectA a = SomeArrow XmlTree a
If you do import Control.Applicative type CollectA = WrappedArrow SomeArrow XmlTree then CollectA will be an instance of Applicative. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
