1 // RUN: %clang_cc1 -verify -fsyntax-only %s 2 3 __attribute__((objc_runtime_visible)) 4 @interface A 5 @end 6 7 @interface A(X) 8 @end 9 10 @implementation A(X) // expected-error{{cannot implement a category for class 'A' that is only visible via the Objective-C runtime}} 11 @end 12 13 @interface B : A 14 @end 15 16 @implementation B // expected-error{{cannot implement subclass 'B' of a superclass 'A' that is only visible via the Objective-C runtime}} 17 @end 18 19 20
