Implement opaque-enum-specifiers for C++0x.

gcc/
	* tree.h (ENUM_IS_OPAQUE): New.
	* dwarf2out.c (gen_enumeration_type_die): Use ENUM_IS_OPAQUE.
gcc/cp/
	* cp-tree.h (SET_OPAQUE_ENUM_P): New.
	(OPAQUE_ENUM_P): New.
	(ENUM_FIXED_UNDERLYING_TYPE_P): New.
	(start_enum): Update prototype.
	(finish_enum_value_list): New prototype.
	* parser.c (cp_parser_elaborated_type_specifier): Issue a pedwarn if
	"enum class" is used in an elaborated-type-specifier.
	(cp_parser_enum_specifier): Rewrite to parse opaque-enum-specifiers.
	* decl.c (copy_type_enum): New.
	(finish_enum_value_list): New, with code from finish_enum.
	(finish_enum): A lot of code removed. Added a gcc_assert.
	(start_enum): Add parameters enumtype and is_new.
	Rewrite to work with opaque-enum-specifiers.
	* pt.c (maybe_process_partial_specialization): Allow for template
	specialization of enumerations, with a pedwarn.
	(lookup_template_class): Update call to start_enum. Call to
	SET_OPAQUE_ENUM_P.
	(tsubst_enum): Call to begin_scope, finish_scope and
	finish_enum_value_list.

From-SVN: r165935

1 files changed, 7 insertions, 3 deletions

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 33a7b56..bf248dc 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -18312,9 +18312,13 @@ gen_enumeration_type_die (tree type, dw_die_ref context_die)
 			  scope_die_for (type, context_die), type);
       equate_type_number_to_die (type, type_die);
       add_name_attribute (type_die, type_tag (type));
-      if ((dwarf_version >= 4 || !dwarf_strict)
-	  && ENUM_IS_SCOPED (type))
-	add_AT_flag (type_die, DW_AT_enum_class, 1);
+      if (dwarf_version >= 4 || !dwarf_strict)
+	{
+	  if (ENUM_IS_SCOPED (type))
+	    add_AT_flag (type_die, DW_AT_enum_class, 1);
+	  if (ENUM_IS_OPAQUE (type))
+	    add_AT_flag (type_die, DW_AT_declaration, 1);
+	}
     }
   else if (! TYPE_SIZE (type))
     return type_die;