1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 #if !__has_feature(objc_class_property) 4 #error does not support class property 5 #endif 6 7 @interface Root 8 -(id) alloc; 9 -(id) init; 10 @end 11 12 @interface A : Root { 13 int x; 14 int z; 15 } 16 @property int x; 17 @property int y; 18 @property int z; 19 @property(readonly) int ro, ro2; 20 @property (class) int c; 21 @property (class) int c2; // expected-note {{property declared here}} \ 22 // expected-note {{property declared here}} 23 @property (class) int x; 24 @end 25 26 @implementation A // expected-warning {{class property 'c2' requires method 'c2' to be defined}} \ 27 // expected-warning {{class property 'c2' requires method 'setC2:' to be defined}} 28 @dynamic x; // refers to the instance property 29 @dynamic (class) x; // refers to the class property 30 @synthesize z, c2; // expected-error {{@synthesize not allowed on a class property 'c2'}} 31 @dynamic c; // refers to the class property 32 @end 33 34 int test() { 35 A *a = [[A alloc] init]; 36 a.c; // expected-error {{property 'c' is a class property; did you mean to access it with class 'A'}} 37 return a.x + A.c; 38 } 39 40 void message_id(id me) { 41 [me y]; 42 } 43 44 void message_class(Class me) { 45 [me c2]; 46 } 47 48 @interface NSObject 49 @end 50 51 @interface MyClass : NSObject 52 @property(class, readonly) int classProp; // expected-note {{property declared here}} 53 @end 54 55 @implementation MyClass // expected-warning {{class property 'classProp' requires method 'classProp' to be defined}} 56 - (int)classProp { // Oops, mistakenly made this an instance method. 57 return 8; 58 } 59 @end 60
