[GHC] #1065: The impossible happened (Template Haskell)

[GHC]

#1065: The impossible happened (Template Haskell)
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    Reporter:  sfh23 at cornell.edu  |       Owner:       
        Type:  bug                |      Status:  new  
    Priority:  normal             |   Milestone:       
   Component:  Compiler           |     Version:  6.6  
    Severity:  normal             |    Keywords:       
  Difficulty:  Unknown            |    Testcase:       
Architecture:  Unknown            |          Os:  Linux
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Error message during compilation:
 ghc-6.6: panic! (the 'impossible' happened)
   (GHC version 6.6 for i386-unknown-linux):
         addImpDecls

 This occurrs with the following function definition:
 makeRowContent :: String -> [(String, SqlDecl)] -> Q [Dec]
 makeRowContent tblName lst = do
   [d| data Tbl = Tbl
       instance TableContent Tbl where
         tableName Tbl = $(litE $ StringL tblName)
       $(dataD [] (mkName "Row") [] [recC "Row" []] [])
       instance RowContent Row where
         rowValueString x = "rowValue"
         rowNameString x = "rowName"
         tblName x = $(litE $ StringL tblName) |]

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1065>
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