[GHC] #13337: GHC doesn't think a type is of kind *, despite having evidence for it

GHC ghc-devs at haskell.org
Tue Jun 27 13:38:38 UTC 2017


#13337: GHC doesn't think a type is of kind *, despite having evidence for it
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  goldfire
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler (Type    |              Version:  8.0.2
  checker)                           |
      Resolution:  fixed             |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12677            |  Differential Rev(s):  Phab:D3315
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * related:   => #12677


Comment:

 See #12677 for a proper ticket devoted to the `(k ~ Type)` issue.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13337#comment:18>
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