[GHC] #14848: -XDuplicateRecordFields breaks record expression splices

GHC ghc-devs at haskell.org
Sun Feb 10 21:51:21 UTC 2019


#14848: -XDuplicateRecordFields breaks record expression splices
-------------------------------------+-------------------------------------
        Reporter:  dailectic         |                Owner:  adamgundry
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:  ORF
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  GHC rejects       |  (amd64)
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11103            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by adamgundry):

 * owner:  (none) => adamgundry


Comment:

 > The least invasive option might be to extend `NameFlavour` with a new
 constructor for field names, which would be rather like `NameG` but would
 carry the selector name.

 I've tried this, and it looks like a relatively straightforward change
 (although we may need an equivalent to `NameL` as well, I'm not sure yet).
 Will propose a patch.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14848#comment:5>
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