Is Template Haskell a new form of Haskell? And where can I find documentation about it?
SCott ----- Original Message ----- From: "Simon Peyton-Jones" <[EMAIL PROTECTED]> To: "Hal Daume III" <[EMAIL PROTECTED]>; "Haskell Mailing List" <[EMAIL PROTECTED]> Sent: Monday, July 29, 2002 11:26 AM Subject: RE: deriving instances for "hidden" types > | I've often felt a tinge of disappointment not being able to > | derive classes over data structures that are defined in the > | libraries (DeepSeq FiniteMap, for instance). I was wondering > | if any of the tools (drift, etc.) or GHCs built-in meta > | programming would allow you to say something like: > | > | derive (DeepSeq a, DeepSeq b) => DeepSeq (FiniteMap a b) > > I think Hal was only suggesting doing this in case where > the representation of the data structure was visible to the library > client. (As others have said, it's not a good idea if the rep is > abstract.) > > Template Haskell will be able to do this. Heart transplant operation > is in progress. Blood on floor, but patient still alive. > > Simon > _______________________________________________ > Haskell mailing list > [EMAIL PROTECTED] > http://www.haskell.org/mailman/listinfo/haskell > _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell