Hi Jon On Wed, Oct 24, 2012 at 11:08:29AM +0100, Jon Fairbairn wrote: > for each field, which is tedious (and O(n)). Obviously Templates > would help, but is there an alternative I’ve missed?
perhaps something like: data Type = Ta | Tb | Tc ... data E = Ea A | Eb B | Ec C | ... type D = HashMap Type E get :: Type -> D -> Maybe E get = lookup Greetings, Daniel _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
