Explicit pattern match in default case of addTickLHsBind

diff --git a/compiler/deSugar/Coverage.lhs b/compiler/deSugar/Coverage.lhs
index 976b47f..7b58a95 100644 (file)
--- a/compiler/deSugar/Coverage.lhs
+++ b/compiler/deSugar/Coverage.lhs
@@ -195,12 +195,8 @@ addTickLHsBind (L pos (pat@(PatBind { pat_rhs = rhs }))) = do
 -}                        
   return $ L pos $ pat { pat_rhs = rhs' }
 
 -}                        
   return $ L pos $ pat { pat_rhs = rhs' }
 

-{- only internal stuff, not from source, uses VarBind, so we ignore it.
-addTickLHsBind (VarBind var_id var_rhs) = do
-  var_rhs' <- addTickLHsExpr var_rhs  
-  return $ VarBind var_id var_rhs'
--}
-addTickLHsBind other = return other
+-- Only internal stuff, not from source, uses VarBind, so we ignore it.
+addTickLHsBind var_bind@(L _ (VarBind {})) = return var_bind

 
 -- Add a tick to the expression no matter what it is.  There is one exception:
 -- for the debugger, if the expression is a 'let', then we don't want to add
 
 -- Add a tick to the expression no matter what it is.  There is one exception:
 -- for the debugger, if the expression is a 'let', then we don't want to add