#define nonnull_strong nonnull, strong #define myatomic nonatomic @interface UCTestClass () @property (nonatomic,readonly,strong,null_unspecified) NSString* test1; @property (nonatomic,readonly,strong,nullable) NSString* test2; @property (nonatomic,readonly,strong,nonnull,getter=test2Getter) NSString* test3; @property (nonatomic,readonly,strong,null_resettable,getter=test2Getter,setter=test2Setter:) NSString* test4; @property (class,nonatomic,readonly,assign,nonnull,getter=test5Getter) NSString* test5; @property (class,assign,getter=test5Getter,myatomic,nonnull_strong) NSString* test6; @end