diff options
Diffstat (limited to 'gcc/objc/objc-act.c')
| -rw-r--r-- | gcc/objc/objc-act.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c index b9ed32d..e410386 100644 --- a/gcc/objc/objc-act.c +++ b/gcc/objc/objc-act.c @@ -571,11 +571,11 @@ lookup_protocol_in_reflist (tree rproto_list, tree lproto) } void -objc_start_class_interface (tree klass, tree super_class, +objc_start_class_interface (tree klass, location_t name_loc, tree super_class, tree protos, tree attributes) { if (flag_objc1_only && attributes) - error_at (input_location, "class attributes are not available in Objective-C 1.0"); + error_at (name_loc, "class attributes are not available in Objective-C 1.0"); objc_interface_context = objc_ivar_context @@ -7014,6 +7014,12 @@ start_class (enum tree_code code, tree class_name, tree super_name, CLASS_SUPER_NAME (objc_implementation_context) = CLASS_SUPER_NAME (implementation_template); } + + if (!CLASS_SUPER_NAME (objc_implementation_context) + && !lookup_attribute ("objc_root_class", + TYPE_ATTRIBUTES (implementation_template))) + warning (OPT_Wobjc_root_class, "class %qE defined without" + " specifying a base class", class_name); break; case CLASS_INTERFACE_TYPE: @@ -7044,6 +7050,8 @@ start_class (enum tree_code code, tree class_name, tree super_name, TREE_DEPRECATED (klass) = 1; else if (is_attribute_p ("objc_exception", name)) CLASS_HAS_EXCEPTION_ATTR (klass) = 1; + else if (is_attribute_p ("objc_root_class", name)) + ; else if (is_attribute_p ("visibility", name)) ; else |