[GHC] #11142: Type-level skolem capture leads to core lint error

GHC ghc-devs at haskell.org
Sat Dec 12 03:14:36 UTC 2015


#11142: Type-level skolem capture leads to core lint error
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                Owner:  bgamari
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.0.1
       Component:  Compiler (Type    |              Version:  7.10.2
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  polykinds/T11142
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by goldfire):

 * testcase:   => polykinds/T11142
 * status:  new => closed
 * resolution:   => fixed


Comment:

 This mistake is now detected. See `Note [Scope-check inferred kinds]` in
 !TcHsType.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11142#comment:8>
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