cp-tree.h (xref_tag): Change prototype.

	* cp-tree.h (xref_tag): Change prototype.
	(handle_class_head): Likewise.
	(build_x_component_ref): Likewise.
	* decl.c (cxx_init_decl_processing): Adjust call to xref_tag.
	(xref_tag): Take attributes as a separate parameter.
	(xref_tag_from_type): Adjust call to xref_tag.
	* decl2.c (build_expr_from_tree): Adjust call to
	build_x_component_ref.
	(handle_class_head): Take attributes as a separate parameter.
	* parse.y (parse_xref_tag): New function.
	(parse_handle_class_head): Likewise.
	(primary): Use parse_xref_tag.
	(class_head_decl): Use parse_handle_class_head.
	(class_head_defn): Likewise.
	* rtti.c (init_rtti_processing): Adjust call to xref_tag.
	(build_dynamic_cast_1): Likewise.
	(create_pseudo_type_info): Likewise.
	(emit_support_tinfos): Likewise.
	* typeck.c (build_object_ref): Adjust call to
	build_x_component_ref.
	(build_x_component_ref): Remove protect parameter.

From-SVN: r55013

gcc/cp/ChangeLog

+2002-06-26  Mark Mitchell  <mark@codesourcery.com>
+
+	* cp-tree.h (xref_tag): Change prototype.
+	(handle_class_head): Likewise.
+	(build_x_component_ref): Likewise.
+	* decl.c (cxx_init_decl_processing): Adjust call to xref_tag.
+	(xref_tag): Take attributes as a separate parameter.
+	(xref_tag_from_type): Adjust call to xref_tag.
+	* decl2.c (build_expr_from_tree): Adjust call to
+	build_x_component_ref.
+	(handle_class_head): Take attributes as a separate parameter.
+	* parse.y (parse_xref_tag): New function.
+	(parse_handle_class_head): Likewise.
+	(primary): Use parse_xref_tag.
+	(class_head_decl): Use parse_handle_class_head.
+	(class_head_defn): Likewise.
+	* rtti.c (init_rtti_processing): Adjust call to xref_tag.
+	(build_dynamic_cast_1): Likewise.
+	(create_pseudo_type_info): Likewise.
+	(emit_support_tinfos): Likewise.
+	* typeck.c (build_object_ref): Adjust call to
+	build_x_component_ref.
+	(build_x_component_ref): Remove protect parameter.
+	
 2002-06-25  Mark Mitchell  <mark@codesourcery.com>
 
 	* call.c (build_op_delete_call): Use BASELINK_FUNCTIONS.

gcc/cp/cp-tree.h

@@ -3856,7 +3856,7 @@ extern int copy_fn_p				PARAMS ((tree));
 extern void grok_special_member_properties	PARAMS ((tree));
 extern int grok_ctor_properties			PARAMS ((tree, tree));
 extern void grok_op_properties			PARAMS ((tree, int));
-extern tree xref_tag				PARAMS ((tree, tree, int));
+extern tree xref_tag				(enum tag_types, tree, tree, bool);
 extern tree xref_tag_from_type			PARAMS ((tree, tree, int));
 extern void xref_basetypes			PARAMS ((tree, tree));
 extern tree start_enum				PARAMS ((tree));
@@ -3955,7 +3955,7 @@ extern tree do_class_using_decl			PARAMS ((tree));
 extern void do_using_directive			PARAMS ((tree));
 extern void check_default_args			PARAMS ((tree));
 extern void mark_used				PARAMS ((tree));
-extern tree handle_class_head			PARAMS ((tree, tree, tree, int, int *));
+extern tree handle_class_head			(enum tag_types, tree, tree, tree, int, int *);
 extern tree lookup_arg_dependent                PARAMS ((tree, tree, tree));
 extern void finish_static_data_member_decl      PARAMS ((tree, tree, tree, int));
 extern tree build_artificial_parm               PARAMS ((tree, tree));
@@ -4437,7 +4437,7 @@ extern tree decay_conversion			PARAMS ((tree));
 extern tree build_object_ref			PARAMS ((tree, tree, tree));
 extern tree build_component_ref_1		PARAMS ((tree, tree, int));
 extern tree build_component_ref			PARAMS ((tree, tree, tree, int));
-extern tree build_x_component_ref		PARAMS ((tree, tree, tree, int));
+extern tree build_x_component_ref		PARAMS ((tree, tree, tree));
 extern tree build_x_indirect_ref		PARAMS ((tree, const char *));
 extern tree build_indirect_ref			PARAMS ((tree, const char *));
 extern tree build_array_ref			PARAMS ((tree, tree));

gcc/cp/decl.c

@@ -6587,8 +6587,9 @@ cxx_init_decl_processing ()
     tree ptr_ftype_sizetype;
 
     push_namespace (std_identifier);
-    bad_alloc_type_node = xref_tag
-      (class_type_node, get_identifier ("bad_alloc"), 1);
+    bad_alloc_type_node 
+      = xref_tag (class_type, get_identifier ("bad_alloc"), 
+		  /*attributes=*/NULL_TREE, 1);
     pop_namespace ();
     ptr_ftype_sizetype 
       = build_function_type (ptr_type_node,
@@ -12729,29 +12730,14 @@ tag_name (code)
    scope.)  */
 
 tree
-xref_tag (code_type_node, name, globalize)
-     tree code_type_node;
-     tree name;
-     int globalize;
+xref_tag (enum tag_types tag_code, tree name, tree attributes, 
+	  bool globalize)
 {
-  enum tag_types tag_code;
   enum tree_code code;
   register tree ref, t;
   struct cp_binding_level *b = current_binding_level;
-  tree attributes = NULL_TREE;
   tree context = NULL_TREE;
 
-  /* If we are called from the parser, code_type_node will sometimes be a
-     TREE_LIST.  This indicates that the user wrote
-     "class __attribute__ ((foo)) bar".  Extract the attributes so we can
-     use them later.  */
-  if (TREE_CODE (code_type_node) == TREE_LIST)
-    {
-      attributes = TREE_PURPOSE (code_type_node);
-      code_type_node = TREE_VALUE (code_type_node);
-    }
-
-  tag_code = (enum tag_types) tree_low_cst (code_type_node, 1);
   switch (tag_code)
     {
     case record_type:
@@ -12962,18 +12948,17 @@ xref_tag_from_type (old, id, globalize)
      tree old, id;
      int globalize;
 {
-  tree code_type_node;
+  enum tag_types tag_kind;
 
   if (TREE_CODE (old) == RECORD_TYPE)
-    code_type_node = (CLASSTYPE_DECLARED_CLASS (old)
-		      ? class_type_node : record_type_node);
+    tag_kind = (CLASSTYPE_DECLARED_CLASS (old) ? class_type : record_type);
   else
-    code_type_node = union_type_node;
+    tag_kind  = union_type;
 
   if (id == NULL_TREE)
     id = TYPE_IDENTIFIER (old);
 
-  return xref_tag (code_type_node, id, globalize);
+  return xref_tag (tag_kind, id, /*attributes=*/NULL_TREE, globalize);
 }
 
 /* REF is a type (named NAME), for which we have just seen some

gcc/cp/decl2.c

@@ -3919,8 +3919,7 @@ build_expr_from_tree (t)
 				   TREE_OPERAND (field, 0),
 				   TREE_OPERAND (field, 1));
 	else
-	  return build_x_component_ref (object, field,
-					NULL_TREE, 1);
+	  return build_x_component_ref (object, field, NULL_TREE);
       }
 
     case THROW_EXPR:
@@ -5194,8 +5193,9 @@ mark_used (decl)
    Return a TYPE_DECL for the type declared by ID in SCOPE.  */
 
 tree
-handle_class_head (aggr, scope, id, defn_p, new_type_p)
-     tree aggr, scope, id;
+handle_class_head (tag_kind, scope, id, attributes, defn_p, new_type_p)
+     enum tag_types tag_kind;
+     tree scope, id, attributes;
      int defn_p;
      int *new_type_p;
 {
@@ -5244,7 +5244,7 @@ handle_class_head (aggr, scope, id, defn_p, new_type_p)
   
   if (!decl)
     {
-      decl = TYPE_MAIN_DECL (xref_tag (aggr, id, !defn_p));
+      decl = TYPE_MAIN_DECL (xref_tag (tag_kind, id, attributes, !defn_p));
       xrefd_p = true;
     }
 
@@ -5271,7 +5271,7 @@ handle_class_head (aggr, scope, id, defn_p, new_type_p)
 	/* It is legal to define a class with a different class key,
 	   and this changes the default member access.  */
 	CLASSTYPE_DECLARED_CLASS (TREE_TYPE (decl))
-	  = aggr == class_type_node;
+	  = (tag_kind == class_type);
 	
       if (!xrefd_p && PROCESSING_REAL_TEMPLATE_DECL_P ())
 	decl = push_template_decl (decl);

gcc/cp/parse.y

@@ -90,7 +90,6 @@ do {									\
   malloced_yyss = newss;						\
   malloced_yyvs = (void *) newvs;					\
 } while (0)
-
 #define OP0(NODE) (TREE_OPERAND (NODE, 0))
 #define OP1(NODE) (TREE_OPERAND (NODE, 1))
 
@@ -131,6 +130,8 @@ static tree parse_method PARAMS ((tree, tree, tree));
 static void frob_specs PARAMS ((tree, tree));
 static void check_class_key PARAMS ((tree, tree));
 static tree parse_scoped_id PARAMS ((tree));
+static tree parse_xref_tag (tree, tree, int);
+static tree parse_handle_class_head (tree, tree, tree, int, int *);
 
 /* Cons up an empty parameter list.  */
 static inline tree
@@ -1718,14 +1719,14 @@ primary:
 		{ $$ = finish_qualified_call_expr ($1, NULL_TREE); }
         | object object_template_id %prec UNARY
                 {
-		  $$ = build_x_component_ref ($$, $2, NULL_TREE, 1);
+		  $$ = build_x_component_ref ($$, $2, NULL_TREE);
 		}
         | object object_template_id '(' nonnull_exprlist ')'
                 { $$ = finish_object_call_expr ($2, $1, $4); }
 	| object object_template_id LEFT_RIGHT
                 { $$ = finish_object_call_expr ($2, $1, NULL_TREE); }
 	| object unqualified_id  %prec UNARY
-		{ $$ = build_x_component_ref ($$, $2, NULL_TREE, 1); }
+		{ $$ = build_x_component_ref ($$, $2, NULL_TREE); }
 	| object overqualified_id  %prec UNARY
 		{ if (processing_template_decl)
 		    $$ = build_min_nt (COMPONENT_REF, $1, $2);
@@ -2308,10 +2309,10 @@ structsp:
 		  current_enum_type = $<ttype>3;
 		  check_for_missing_semicolon ($$.t); }
 	| ENUM identifier
-		{ $$.t = xref_tag (enum_type_node, $2, 1);
+		{ $$.t = parse_xref_tag (enum_type_node, $2, 1);
 		  $$.new_type_flag = 0; }
 	| ENUM complex_type_name
-		{ $$.t = xref_tag (enum_type_node, $2, 1);
+		{ $$.t = parse_xref_tag (enum_type_node, $2, 1);
 		  $$.new_type_flag = 0; }
 	| TYPENAME_KEYWORD typename_sub
 		{ $$.t = $2;
@@ -2442,14 +2443,15 @@ class_head_apparent_template:
 class_head_decl:
 	  class_head %prec EMPTY
 		{
-		  $$.t = handle_class_head (current_aggr,
-					    TREE_PURPOSE ($1), TREE_VALUE ($1),
-					    0, &$$.new_type_flag);
+		  $$.t = parse_handle_class_head (current_aggr,
+						  TREE_PURPOSE ($1), 
+						  TREE_VALUE ($1),
+						  0, &$$.new_type_flag);
 		}
 	| aggr identifier_defn %prec EMPTY
 		{
 		  current_aggr = $1;
-		  $$.t = TYPE_MAIN_DECL (xref_tag (current_aggr, $2, 0));
+		  $$.t = TYPE_MAIN_DECL (parse_xref_tag (current_aggr, $2, 0));
 		  $$.new_type_flag = 1;
 		}
 	| class_head_apparent_template %prec EMPTY
@@ -2463,16 +2465,19 @@ class_head_defn:
 	  class_head '{'
 		{
 		  yyungetc ('{', 1);
-		  $$.t = handle_class_head (current_aggr,
-					    TREE_PURPOSE ($1), TREE_VALUE ($1),
-					    1, &$$.new_type_flag);
+		  $$.t = parse_handle_class_head (current_aggr,
+						  TREE_PURPOSE ($1), 
+						  TREE_VALUE ($1),
+						  1, 
+						  &$$.new_type_flag);
 		}
 	| class_head ':'
 		{
 		  yyungetc (':', 1);
-		  $$.t = handle_class_head (current_aggr,
-					    TREE_PURPOSE ($1), TREE_VALUE ($1),
-					    1, &$$.new_type_flag);
+		  $$.t = parse_handle_class_head (current_aggr,
+						  TREE_PURPOSE ($1), 
+						  TREE_VALUE ($1),
+						  1, &$$.new_type_flag);
 		}
 	| class_head_apparent_template '{'
 		{
@@ -2500,22 +2505,24 @@ class_head_defn:
 		{
 		  yyungetc ('{', 1);
 		  current_aggr = $1;
-		  $$.t = handle_class_head (current_aggr,
-					    NULL_TREE, $2,
-					    1, &$$.new_type_flag);
+		  $$.t = parse_handle_class_head (current_aggr,
+						  NULL_TREE, $2,
+						  1, &$$.new_type_flag);
 		}
 	| aggr identifier_defn ':'
 		{
 		  yyungetc (':', 1);
 		  current_aggr = $1;
-		  $$.t = handle_class_head (current_aggr,
-					    NULL_TREE, $2,
-					    1, &$$.new_type_flag);
+		  $$.t = parse_handle_class_head (current_aggr,
+						  NULL_TREE, $2,
+						  1, &$$.new_type_flag);
 		}
         | aggr '{'
 		{
 		  current_aggr = $1;
-		  $$.t = TYPE_MAIN_DECL (xref_tag ($1, make_anon_name (), 0));
+		  $$.t = TYPE_MAIN_DECL (parse_xref_tag ($1, 
+							 make_anon_name (), 
+							 0));
 		  $$.new_type_flag = 0;
 		  yyungetc ('{', 1);
 		}
@@ -4034,4 +4041,48 @@ parse_scoped_id (token)
   return do_scoped_id (token, id);
 }
 
+/* AGGR may be either a type node (like class_type_node) or a
+   TREE_LIST whose TREE_PURPOSE is a list of attributes and whose
+   TREE_VALUE is a type node.  Set *TAG_KIND and *ATTRIBUTES to
+   represent the information encoded.  */
+
+static void
+parse_split_aggr (tree aggr, enum tag_types *tag_kind, tree *attributes)
+{
+  if (TREE_CODE (aggr) == TREE_LIST) 
+    {
+      *attributes = TREE_PURPOSE (aggr);
+      aggr = TREE_VALUE (aggr);
+    }
+  else
+    *attributes = NULL_TREE;
+  *tag_kind = (enum tag_types) tree_low_cst (aggr, 1);
+}
+
+/* Like xref_tag, except that the AGGR may be either a type node (like
+   class_type_node) or a TREE_LIST whose TREE_PURPOSE is a list of
+   attributes and whose TREE_VALUE is a type node.  */
+
+static tree
+parse_xref_tag (tree aggr, tree name, int globalize)
+{
+  tree attributes;
+  enum tag_types tag_kind;
+  parse_split_aggr (aggr, &tag_kind, &attributes);
+  return xref_tag (tag_kind, name, attributes, globalize);
+}
+
+/* Like handle_class_head, but AGGR may be as for parse_xref_tag. */
+
+static tree
+parse_handle_class_head (tree aggr, tree scope, tree id, 
+			 int defn_p, int *new_type_p)
+{
+  tree attributes;
+  enum tag_types tag_kind;
+  parse_split_aggr (aggr, &tag_kind, &attributes);
+  return handle_class_head (tag_kind, scope, id, attributes, 
+			    defn_p, new_type_p);
+}
+
 #include "gt-cp-parse.h"

gcc/cp/rtti.c

@@ -72,8 +72,9 @@ void
 init_rtti_processing ()
 {
   push_namespace (std_identifier);
-  type_info_type_node = xref_tag
-    (class_type_node, get_identifier ("type_info"), 1);
+  type_info_type_node 
+    = xref_tag (class_type, get_identifier ("type_info"),
+		/*attributes=*/NULL_TREE, 1);
   pop_namespace ();
   tinfo_decl_type = 
     build_qualified_type (type_info_type_node, TYPE_QUAL_CONST);
@@ -573,8 +574,9 @@ build_dynamic_cast_1 (type, expr)
 	      const char *name;
 	      
 	      push_nested_namespace (ns);
-	      tinfo_ptr = xref_tag (class_type_node,
+	      tinfo_ptr = xref_tag (class_type,
 				    get_identifier ("__class_type_info"),
+				    /*attributes=*/NULL_TREE,
 				    1);
 	      
 	      tinfo_ptr = build_pointer_type
@@ -1166,7 +1168,8 @@ create_pseudo_type_info VPARAMS((const char *real_name, int ident, ...))
     sprintf (pseudo_name + strlen (pseudo_name), "%d", ident);
   
   /* Get the vtable decl. */
-  real_type = xref_tag (class_type_node, get_identifier (real_name), 1);
+  real_type = xref_tag (class_type, get_identifier (real_name), 
+			/*attributes=*/NULL_TREE, 1);
   if (! TYPE_SIZE (real_type))
     {
       /* We never saw a definition of this type, so we need to tell the
@@ -1370,8 +1373,10 @@ emit_support_tinfos ()
   tree bltn_type, dtor;
   
   push_nested_namespace (abi_node);
-  bltn_type = xref_tag (class_type_node,
-                        get_identifier ("__fundamental_type_info"), 1);
+  bltn_type = xref_tag (class_type,
+			get_identifier ("__fundamental_type_info"), 
+			/*attributes=*/NULL_TREE,
+			1);
   pop_nested_namespace (abi_node);
   if (!COMPLETE_TYPE_P (bltn_type))
     return;

gcc/cp/typeck.c

@@ -1844,7 +1844,7 @@ build_object_ref (datum, basetype, field)
     {
       tree binfo = NULL_TREE;
       datum = build_scoped_ref (datum, basetype, &binfo);
-      return build_x_component_ref (datum, field, binfo, 1);
+      return build_x_component_ref (datum, field, binfo);
     }
   return error_mark_node;
 }
@@ -2256,11 +2256,11 @@ invalid offsetof from non-POD type `%#T'; use pointer to member instead",
    never have REFERENCE_TYPE.  */
 
 tree
-build_x_component_ref (datum, component, basetype_path, protect)
+build_x_component_ref (datum, component, basetype_path)
      tree datum, component, basetype_path;
-     int protect;
 {
-  tree t = build_component_ref (datum, component, basetype_path, protect);
+  tree t = build_component_ref (datum, component, basetype_path, 
+				/*protect=*/1);
 
   if (! processing_template_decl)
     t = convert_from_reference (t);