simonpj at microsoft.com
Sat Jul 21 06:41:00 EDT 2007
No reason in principle. If anyone wants to add the Typeable classes for 8-15 that'd be fine.
| -----Original Message-----
| From: libraries-bounces at haskell.org [mailto:libraries-
| bounces at haskell.org] On Behalf Of Matthew Pocock
| Sent: 20 July 2007 16:52
| To: libraries at haskell.org
| Subject: Typeable<n> classes
| I've been trying to use `deriving (Typeable, Data)' on some datatypes
| arity 8 and 15, but GHC has been complaining. There aren't any
| 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?
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