1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2 // expected-no-diagnostics 3 4 @interface MyParent { 5 int X; 6 } 7 @end 8 @implementation MyParent 9 @end 10 11 @interface MyParent(AA) { 12 } 13 @end 14 @implementation MyParent (AA) 15 - (void) setX: (int)in {X = in - 2;} 16 - (int) X {return X;} 17 @end 18 19 @interface MyClass : MyParent 20 @end 21 @implementation MyClass 22 @end 23 24 int foo(MyClass *o) { 25 o.X = 2; 26 return o.X; 27 }