[GHC] #8165: Use GeneralizedNewtypeDeriving to automatically create associated type families
GHC
ghc-devs at haskell.org
Fri Aug 23 20:56:05 UTC 2013
#8165: Use GeneralizedNewtypeDeriving to automatically create associated type
families
------------------------------------+-------------------------------------
Reporter: MikeIzbicki | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.6.3
Keywords: | Operating System: Unknown/Multiple
Architecture: Unknown/Multiple | Type of failure: None/Unknown
Difficulty: Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: |
------------------------------------+-------------------------------------
Here's a simple example:
{{{
class C a where
type T a
instance C Int where
type T Int = Bool
newtype NT = NT Int
deriving C
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8165>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
More information about the ghc-tickets
mailing list