objc-act.h (CLASS_SUPER_NAME): Add a little typechecking.

	* objc/objc-act.h (CLASS_SUPER_NAME): Add a little typechecking.
	(TYPE_PROTOCOL_LIST): Share use of type.context with C frontend.
	(SET_TYPE_PROTOCOL_LIST): New.
	* objc/objc-act.c (get_static_reference): Use SET_TYPE_PROTOCOL_LIST.
	(get_object_reference): Likewise.

From-SVN: r69364

gcc/ChangeLog

+2003-07-14  Geoffrey Keating  <geoffk@apple.com>
+
+	* objc/objc-act.h (CLASS_SUPER_NAME): Add a little typechecking.
+	(TYPE_PROTOCOL_LIST): Share use of type.context with C frontend.
+	(SET_TYPE_PROTOCOL_LIST): New.
+	* objc/objc-act.c (get_static_reference): Use SET_TYPE_PROTOCOL_LIST.
+	(get_object_reference): Likewise.
+
 Mon Jul 14 23:14:28 CEST 2003  Jan Hubicka  <jh@suse.cz>
 
 	* cfglayout.c (locator_file): Break out from ....

gcc/objc/objc-act.c

@@ -939,7 +939,7 @@ get_static_reference (interface, protocols)
 
       /* Look up protocols and install in lang specific list.  Note
 	 that the protocol list can have a different lifetime than T!  */
-      TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
+      SET_TYPE_PROTOCOL_LIST (t, lookup_and_install_protocols (protocols));
 
       /* This forces a new pointer type to be created later
 	 (in build_pointer_type)...so that the new template
@@ -988,7 +988,7 @@ get_object_reference (protocols)
       TYPE_NEXT_VARIANT (m) = t;
 
       /* Look up protocols...and install in lang specific list */
-      TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
+      SET_TYPE_PROTOCOL_LIST (t, lookup_and_install_protocols (protocols));
 
       /* This forces a new pointer type to be created later
 	 (in build_pointer_type)...so that the new template

gcc/objc/objc-act.h

@@ -90,7 +90,7 @@ tree build_encode_expr				PARAMS ((tree));
    CATEGORY_INTERFACE_TYPE, CATEGORY_IMPLEMENTATION_TYPE,
    PROTOCOL_INTERFACE_TYPE */
 #define CLASS_NAME(CLASS) ((CLASS)->type.name)
-#define CLASS_SUPER_NAME(CLASS) ((CLASS)->type.context)
+#define CLASS_SUPER_NAME(CLASS) (TYPE_CHECK (CLASS)->type.context)
 #define CLASS_IVARS(CLASS) TREE_VEC_ELT (TYPE_BINFO (CLASS), 0)
 #define CLASS_RAW_IVARS(CLASS) TREE_VEC_ELT (TYPE_BINFO (CLASS), 1)
 #define CLASS_NST_METHODS(CLASS) ((CLASS)->type.minval)
@@ -105,7 +105,11 @@ tree build_encode_expr				PARAMS ((tree));
 #define PROTOCOL_CLS_METHODS(CLASS) ((CLASS)->type.maxval)
 #define PROTOCOL_FORWARD_DECL(CLASS) TREE_VEC_ELT (TYPE_BINFO (CLASS), 1)
 #define PROTOCOL_DEFINED(CLASS) TREE_USED (CLASS)
-#define TYPE_PROTOCOL_LIST(TYPE) ((TYPE)->type.context)
+#define TYPE_PROTOCOL_LIST(TYPE)					\
+  ((!TYPE_CHECK (TYPE)->type.context					\
+    || TREE_CODE ((TYPE)->type.context) == TRANSLATION_UNIT_DECL)	\
+   ? NULL_TREE : (TYPE)->type.context)
+#define SET_TYPE_PROTOCOL_LIST(TYPE, P) (TYPE_CHECK (TYPE)->type.context = (P))
 
 /* Set by `continue_class' and checked by `is_public'.  */