[Haskell] Proposal: Allow "\=" for field update in record update
benjamin.franksen at bessy.de
Fri Mar 4 09:26:52 EST 2005
On Sunday 20 February 2005 14:19, Keean Schupke wrote:
> TH has supported multi-parameter classes for a while... new in 6.4 is
> support for fundeps.
Yes, but unfortunately TH cannot create instances for them which is usually
the boilerplate you want to avoid. From Language.Haskell.TH:
data Dec =
ClassD Cxt Name [Name] [FunDep] [Dec]
InstanceD Cxt Type [Dec]
Only one 'Type' can be given for an instance.
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