[GHC] #7445: template-haskell : need a good error message instead of just an unexplained panic

[GHC]

#7445: template-haskell : need a good error message instead of just an unexplained
panic
-------------------------------+--------------------------------------------
Reporter:  erikd               |          Owner:                  
    Type:  bug                 |         Status:  new             
Priority:  normal              |      Component:  Template Haskell
 Version:  7.7                 |       Keywords:                  
      Os:  Unknown/Multiple    |   Architecture:  Unknown/Multiple
 Failure:  Compile-time crash  |      Blockedby:                  
Blocking:                      |        Related:                  
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Comment(by erikd):

 Hmm, this works:

 {{{
 module QuasiArith
     ( Expr (..)
     , BinOp (..)
     , eval
     , expr
     ) where
 }}}

 Problem seems to have been that type Expr and BinOp were not exported.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7445#comment:5>
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