add double colon and double arrow symbols (-fglasgow-exts)

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

diff --git a/ghc/compiler/hsSyn/HsDecls.lhs b/ghc/compiler/hsSyn/HsDecls.lhs
index c977496..dadcc6b 100644 (file)
--- a/ghc/compiler/hsSyn/HsDecls.lhs
+++ b/ghc/compiler/hsSyn/HsDecls.lhs
@@ -110,7 +110,8 @@ emptyRnGroup  = emptyGroup { hs_valds = emptyValBindsOut }
 
 emptyGroup = HsGroup { hs_tyclds = [], hs_instds = [],
                       hs_fixds = [], hs_defds = [], hs_fords = [], 
-                      hs_depds = [] ,hs_ruleds = [] }
+                      hs_depds = [], hs_ruleds = [],
+                      hs_valds = error "emptyGroup hs_valds: Can't happen" }
 
 appendGroups :: HsGroup a -> HsGroup a -> HsGroup a
 appendGroups 
@@ -572,7 +573,6 @@ pprConDecl (ConDecl con expl tvs cxt details (ResTyGADT res_ty))
   where
     ppr_details (PrefixCon arg_tys) = dcolon <+> ppr (foldr mk_fun_ty res_ty arg_tys)
     ppr_details (RecCon fields)     = ppr fields <+> dcolon <+> ppr res_ty
-    ppr_details (PrefixCon _)       = pprPanic "pprConDecl" (ppr con)
 
     mk_fun_ty a b = noLoc (HsFunTy a b)
 
@@ -721,8 +721,8 @@ instance Outputable ForeignImport where
         ptext SLIT("dynamic")
       pprCEntity _      _   (CWrapper) = ptext SLIT("wrapper")
       --
-      pprLib lib | nullFastString lib = empty
-                | otherwise          = char '[' <> ppr lib <> char ']'
+      pprLib lib | nullFS lib = empty
+                | otherwise  = char '[' <> ppr lib <> char ']'
 
 instance Outputable ForeignExport where
   ppr (CExport  (CExportStatic lbl cconv)) =