[project @ 1996-05-06 11:01:29 by partain]

[ghc-hetmet.git] / ghc / compiler / rename / RnExpr.lhs

diff --git a/ghc/compiler/rename/RnExpr.lhs b/ghc/compiler/rename/RnExpr.lhs
index 805a1dc..5f6790e 100644 (file)
--- a/ghc/compiler/rename/RnExpr.lhs
+++ b/ghc/compiler/rename/RnExpr.lhs
@@ -28,10 +28,11 @@ import RnMonad
 import ErrUtils                ( addErrLoc, addShortErrLocLine )
 import Name            ( isLocallyDefinedName, pprSym, Name, RdrName )
 import Pretty
-import UniqFM          ( lookupUFM )
+import UniqFM          ( lookupUFM, ufmToList{-ToDo:rm-} )
 import UniqSet         ( emptyUniqSet, unitUniqSet,
                          unionUniqSets, unionManyUniqSets,
-                         UniqSet(..) )
+                         UniqSet(..)
+                       )
 import Util            ( Ord3(..), removeDups, panic )
 \end{code}
 
@@ -485,6 +486,7 @@ precParseExpr exp@(OpApp (NegApp e1 n) (HsVar op) e2)
 precParseExpr exp@(OpApp (OpApp e11 (HsVar op1) e12) (HsVar op) e2)
   = lookupFixity op             `thenRn` \ (op_fix, op_prec) ->
     lookupFixity op1            `thenRn` \ (op1_fix, op1_prec) ->
+    -- pprTrace "precParse:" (ppCat [ppr PprDebug op, ppInt op_prec, ppr PprDebug op1, ppInt op1_prec]) $
     case cmp op1_prec op_prec of
       LT_  -> rearrange
       EQ_  -> case (op1_fix, op_fix) of
@@ -534,6 +536,7 @@ data INFIX = INFIXL | INFIXR | INFIXN deriving Eq
 lookupFixity :: RnName -> RnM_Fixes s (INFIX, Int)
 lookupFixity op
   = getExtraRn `thenRn` \ fixity_fm ->
+    -- pprTrace "lookupFixity:" (ppAboves [ppCat [pprUnique u, ppr PprDebug i_f] | (u,i_f) <- ufmToList fixity_fm]) $
     case lookupUFM fixity_fm op of
       Nothing           -> returnRn (INFIXL, 9)
       Just (InfixL _ n) -> returnRn (INFIXL, n)