No reason in principle. If anyone wants to add the Typeable classes for 8-15 that'd be fine. Simon | -----Original Message----- | From: libraries-bounces@haskell.org [mailto:libraries- | bounces@haskell.org] On Behalf Of Matthew Pocock | Sent: 20 July 2007 16:52 | To: libraries@haskell.org | Subject: Typeable<n> classes | | Hi, | | I've been trying to use `deriving (Typeable, Data)' on some datatypes | with | arity 8 and 15, but GHC has been complaining. There aren't any | Typeable<n> | classes defined in Data.Typeable that go beyond 7. | | Is there a reason for this particular limit? | | If not, could it be extended further e.g. to 15? | | Is this likely to let GHC derive Typeable instances for my data types? | | | Thanks, | | Matthew | | _______________________________________________ | Libraries mailing list | Libraries@haskell.org | http://www.haskell.org/mailman/listinfo/libraries