[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
Sun Aug 27 21:36:31 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 (Type    |              Version:  8.0.2
  checker)                           |             Keywords:
      Resolution:                    |  CustomTypeErrors
Operating System:  Unknown/Multiple  |         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 Phyx-):

 * os:  Windows => Unknown/Multiple
 * component:  Compiler => Compiler (Type checker)


Comment:

 Thanks for the report, reclassifying it as this isn't a Windows specific
 error and I'm not too familiar with this feature.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14141#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list