[GHC] #14141: Custom type errors don't trigger when matching on a GADT constructor with an error in the constraint

GHC ghc-devs at haskell.org
Mon Aug 21 11:04:36 UTC 2017


#14141: Custom type errors don't trigger when matching on a GADT constructor with
an error in the constraint
-------------------------------------+-------------------------------------
        Reporter:  Darwin226         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2
      Resolution:                    |             Keywords:
                                     |  CustomTypeErrors
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  GHC accepts       |  (amd64)
  invalid program                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by Darwin226):

 * keywords:   => CustomTypeErrors


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14141#comment:1>
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