Major patch to fix reporting of unused imports

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

diff --git a/compiler/hsSyn/HsImpExp.lhs b/compiler/hsSyn/HsImpExp.lhs
index bc76b94..9465cd2 100644 (file)
--- a/compiler/hsSyn/HsImpExp.lhs
+++ b/compiler/hsSyn/HsImpExp.lhs
@@ -59,16 +59,17 @@ instance (Outputable name) => Outputable (ImportDecl name) where
        pp_qual True    = ptext (sLit "qualified")
 
        pp_as Nothing   = empty
-       pp_as (Just a)  = ptext (sLit "as ") <+> ppr a
+       pp_as (Just a)  = ptext (sLit "as") <+> ppr a
 
        ppr_imp True  = ptext (sLit "{-# SOURCE #-}")
        ppr_imp False = empty
 
-       pp_spec Nothing = empty
-       pp_spec (Just (False, spec))
-                       = parens (interpp'SP spec)
-       pp_spec (Just (True, spec))
-                       = ptext (sLit "hiding") <+> parens (interpp'SP spec)
+       pp_spec Nothing             = empty
+       pp_spec (Just (False, ies)) = ppr_ies ies
+       pp_spec (Just (True,  ies)) = ptext (sLit "hiding") <+> ppr_ies ies
+
+       ppr_ies []  = ptext (sLit "()")
+       ppr_ies ies = char '(' <+> interpp'SP ies <+> char ')'
 \end{code}
 
 %************************************************************************