1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 typedef struct objc_object { 4 struct objc_class *isa; 5 } *id; 6 7 @interface NSObject { 8 struct objc_class *isa; 9 } 10 @end 11 @interface Whatever : NSObject 12 +self; 13 @end 14 15 static void func() { 16 17 id x; 18 19 [(*x).isa self]; 20 [x->isa self]; 21 22 Whatever *y; 23 24 // GCC allows this, with the following warning: 25 // instance variable 'isa' is @protected; this will be a hard error in the future 26 // 27 // FIXME: see if we can avoid the 2 warnings that follow the error. 28 [(*y).isa self]; // expected-error {{instance variable 'isa' is protected}} \ 29 expected-warning{{receiver type 'struct objc_class *' is not 'id' or interface pointer, consider casting it to 'id'}} \ 30 expected-warning{{method '-self' not found (return type defaults to 'id')}} 31 [y->isa self]; // expected-error {{instance variable 'isa' is protected}} \ 32 expected-warning{{receiver type 'struct objc_class *' is not 'id' or interface pointer, consider casting it to 'id'}} \ 33 expected-warning{{method '-self' not found (return type defaults to 'id')}} 34 } 35
