Something like this should work:class (Path p, CompletePath (CompletedPath p)) => IncompletePath p where type CompletedPath p :: *
AIUI, this isn't implemented yet. You'll have to place the constraint on each involved function. Friendly, --Lane _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
