[GHC] #8563: Deriving with PolyKinds broken

GHC ghc-devs at haskell.org
Mon Nov 25 18:00:35 UTC 2013


#8563: Deriving with PolyKinds broken
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        Reporter:  edsko             |            Owner:
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:
       Component:  Compiler          |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by goldfire):

 Filter out the kind vars in `cls_tys` and `cls_tvs` in `gen_Newtype_binds`
 in !TcGenDeriv -- I think that should fix it. Let me know if you want me
 to take a closer look, but it seems like you're on it.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8563#comment:3>
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