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@property (class, setter=customSet:) int customSetterProperty; 25@property (class, getter=customGet) int customGetterProperty; 26@end 27 28@implementation A // expected-warning {{class property 'c2' requires method 'c2' to be defined}} \ 29 // expected-warning {{class property 'c2' requires method 'setC2:' to be defined}} 30@dynamic x; // refers to the instance property 31@dynamic (class) x; // refers to the class property 32@synthesize z, c2; // expected-error {{@synthesize not allowed on a class property 'c2'}} 33@dynamic c; // refers to the class property 34@dynamic customSetterProperty; 35@dynamic customGetterProperty; 36@end 37 38int test() { 39 A *a = [[A alloc] init]; 40 a.c; // expected-error {{property 'c' is a class property; did you mean to access it with class 'A'}} 41 return a.x + A.c; 42} 43 44void customSelectors() { 45 A.customSetterProperty = 1; 46 (void)A.customGetterProperty; 47} 48 49void message_id(id me) { 50 [me y]; 51} 52 53void message_class(Class me) { 54 [me c2]; 55} 56 57@interface NSObject 58@end 59 60@interface MyClass : NSObject 61@property(class, readonly) int classProp; // expected-note {{property declared here}} 62@end 63 64@implementation MyClass // expected-warning {{class property 'classProp' requires method 'classProp' to be defined}} 65- (int)classProp { // Oops, mistakenly made this an instance method. 66 return 8; 67} 68@end 69