Sort of. I believe you can use type equality constraints to replace the use of TypeCast; that is, in any code that looks like:
> instance TypeCast a HTrue => ... you can write > instance (a ~ HTrue) => ... (at least, it has worked for me that way) This at least makes me feel a bit more monadic (warm & fuzzy!) than the indecipherable magic that is the declaration of TypeCast/TypeCast'/TypeCast'' -- ryan On Thu, Dec 4, 2008 at 3:09 PM, Nicolas Frisby <[EMAIL PROTECTED]> wrote: > 1) Type families, associated types, synonyms... can anything replace > the use of TypeCast for explicit instance selection? Section 2, bullet > 4 of http://www.haskell.org/haskellwiki/GHC/AdvancedOverlap indicates > a negative response. Any other ideas? > > 2) Any progress/options for kind polymorphism in instances? > > Thanks for your time. > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
