#5686: 'impossible' happened when deriving Functor on a type with a type family
application
-----------------------------------------+----------------------------------
  Reporter:  patrick_premont             |          Owner:                  
      Type:  bug                         |         Status:  closed          
  Priority:  normal                      |      Milestone:                  
 Component:  Compiler                    |        Version:  7.2.1           
Resolution:  fixed                       |       Keywords:                  
        Os:  Unknown/Multiple            |   Architecture:  Unknown/Multiple
   Failure:  Compile-time crash          |     Difficulty:  Unknown         
  Testcase:  deriving/should_fail/T5686  |      Blockedby:                  
  Blocking:                              |        Related:                  
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Changes (by simonpj):

  * status:  new => closed
  * difficulty:  => Unknown
  * resolution:  => fixed
  * testcase:  => deriving/should_fail/T5686


Comment:

 Thanks for the report!

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5686#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler

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