[GHC] #9858: Typeable instances should be kind-aware

GHC ghc-devs at haskell.org
Wed Apr 22 14:24:19 UTC 2015


#9858: Typeable instances should be kind-aware
-------------------------------------+-------------------------------------
        Reporter:  dreixel           |                   Owner:
            Type:  bug               |                  Status:  merge
        Priority:  highest           |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  7.9
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |  typecheck/should_fail/T9858a,b,c;
                                     |  should_run/T9858b
                                     |                Blocking:
                                     |  Differential Revisions:  Phab:D652
-------------------------------------+-------------------------------------

Comment (by simonpj):

 I think these examples will start to work when we get polykinded typeable,
 which is a consequence of what Richard is doing on his branch.

 What ''would'' be useful is if you produce a fresh set of test cases that
 you think should work, but don't.  You can probably extract them from the
 100 comments above, but I'd like to know what your short-list is!   In
 fact make them into a new ticket, then we won't lose track.  This one is
 too long and digressive now.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9858#comment:110>
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