[GHC] #14636: GHC Panic

GHC ghc-devs at haskell.org
Thu Jan 4 13:59:03 UTC 2018


#14636: GHC Panic
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14520            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * status:  new => closed
 * resolution:   => duplicate
 * related:   => #14520


Comment:

 Indeed, this is a duplicate of #14520:

 {{{
 $ ghc/inplace/bin/ghc-stage2 --interactive -ignore-dot-ghci -XPolyKinds
 -XDataKinds
 GHCi, version 8.5.20180103: http://www.haskell.org/ghc/  :? for help
 Prelude> import Data.Proxy
 Prelude Data.Proxy> data ID :: a -> a -> *
 Prelude Data.Proxy> :kind (Proxy :: _ ID)

 <interactive>:1:2: error:
     • Expecting one more argument to ‘Proxy’
       Expected kind ‘_ ID’, but ‘Proxy’ has kind ‘k0 -> *’
     • In the type ‘(Proxy :: _ ID)’
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14636#comment:2>
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