[GHC] #9733: Strange errors when using type families as parameters

GHC ghc-devs at haskell.org
Tue Oct 28 02:42:06 UTC 2014


#9733: Strange errors when using type families as parameters
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              Reporter:  crockeea    |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.3
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  GHC         |       Blocked By:
  rejects valid program              |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by goldfire):

 I believe that these are all variations on #9433, which is fixed in HEAD.
 Each example (save the first) uses an under-saturated type family. If you
 concur, please close as duplicate.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9733#comment:1>
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