Accessibility of ivars synthesised from readonly @properties in subclasses

main.m

#import <Foundation/Foundation.h>

@interface Animal : NSObject 
{
    // The instance variable 'name' that would normally be generated by @property, is not visible in subclasses.
    // Thus, leaving the subclasses with no way to set the 'name'.
    // Because of this, we have to declare the instance variable publicly as well.
    
    NSString *_name;
}

@property (nonatomic, readonly) NSString *name;

@end

@implementation Animal
@end

///////

@interface Wolf : Animal

- (instancetype)initWithName:(NSString *)name;

@end

@implementation Wolf

- (instancetype)initWithName:(NSString *)name
{
    self = [super init];
    if (self) {
        _name = name;
    }
    return self;
}

@end

int main(int argc, char * argv[])
{
    @autoreleasepool {
        Wolf *wolf = [[Wolf alloc] initWithName:@"Okami"];
        NSLog(@"%@", wolf.name); // Outputs 'Okami'.
    }
}