Tidy up pretty-printing (use ppUnless)

[ghc-hetmet.git] / compiler / hsSyn / HsExpr.lhs

diff --git a/compiler/hsSyn/HsExpr.lhs b/compiler/hsSyn/HsExpr.lhs
index c3f38ca..6530ad6 100644 (file)
--- a/compiler/hsSyn/HsExpr.lhs
+++ b/compiler/hsSyn/HsExpr.lhs
@@ -777,8 +777,8 @@ pprGRHSs :: (OutputableBndr idL, OutputableBndr idR)
          => HsMatchContext idL -> GRHSs idR -> SDoc
 pprGRHSs ctxt (GRHSs grhss binds)
   = vcat (map (pprGRHS ctxt . unLoc) grhss)
- $$ if isEmptyLocalBinds binds then empty
-                               else text "where" $$ nest 4 (pprBinds binds)
+ $$ ppUnless (isEmptyLocalBinds binds)
+      (text "where" $$ nest 4 (pprBinds binds))
 
 pprGRHS :: (OutputableBndr idL, OutputableBndr idR)
         => HsMatchContext idL -> GRHS idR -> SDoc