llvm-project/clang/test/SemaObjC/objc-class-property.m

60 lines
1.5 KiB
Objective-C

// RUN: %clang_cc1 -fsyntax-only -verify %s
#if !__has_feature(objc_class_property)
#error does not support class property
#endif
@interface Root
-(id) alloc;
-(id) init;
@end
@interface A : Root {
int x;
int z;
}
@property int x;
@property int y;
@property int z;
@property(readonly) int ro, ro2;
@property (class) int c;
@property (class) int c2; // expected-note {{property declared here}} \
// expected-note {{property declared here}}
@property (class) int x;
@end
@implementation A // expected-warning {{class property 'c2' requires method 'c2' to be defined}} \
// expected-warning {{class property 'c2' requires method 'setC2:' to be defined}}
@dynamic x; // refers to the instance property
@dynamic (class) x; // refers to the class property
@synthesize z, c2; // expected-error {{@synthesize not allowed on a class property 'c2'}}
@dynamic c; // refers to the class property
@end
int test() {
A *a = [[A alloc] init];
a.c; // expected-error {{property 'c' is a class property; did you mean to access it with class 'A'}}
return a.x + A.c;
}
void message_id(id me) {
[me y];
}
void message_class(Class me) {
[me c2];
}
@interface NSObject
@end
@interface MyClass : NSObject
@property(class, readonly) int classProp; // expected-note {{property declared here}}
@end
@implementation MyClass // expected-warning {{class property 'classProp' requires method 'classProp' to be defined}}
- (int)classProp { // Oops, mistakenly made this an instance method.
return 8;
}
@end