Question

I am porting a project from C# to Objective-C, and I would like to know how to implement an Internal class in Objective-C (Internal meaning only visible inside of this project).

For example, I have the code in C#:

public abstract class AbstractBaseClass : AInterface
{
     // methods go here
}

internal class InternalSubclass : AbstractBaseClass
{
     // methods go here
}

This Is the code I have converted so far:

// AbstractBaseClass.h
#import <Foundation/Foundation.h>
#import "AInterface.h"

@interface AbstractBaseClass : NSObject<AInterface>

// methods go here

@end

// AbstractBaseClass.m
#import "AbstractBaseClass.h"

@implementation AbstractBaseClass

-(void) abstractMethod
{
      [NSException raise:@"abstract method" format:@"This method is abstract, and thus cannot be called"];
}

// more methods

@end

Where should I put the interfaces and implementations of InternalSubclasses? Should they be in a separate file called InternalClasses.h/m? Or should I just not have a header for those files and just have a .m file for them.

Any help would be appreciated!

Answer 1

Thank you for all your answers, I have decided to make the classes public, as I will be the only one using this library at this time. I was really just wondering if I had missed something in the documentation of the Objective C language about internal classes, because you can mark variables as @package.