gistfile1.m

import Cocoa;

export MyFramework.DataStructures;
//Objective-C Modules

@class Queue : NSObject
//implicitly because we are exporting group names we have a "namespace" of sorts
//which is why this class doesn't have a prefix. Since we have modules now @class
//can serve a different purpose than it currently serves

@property(private,retain) NSMutableArray *storage;

-(public id)init
{
  self = [super init];
	if(self) {
		_storage = [NSMutableArray array];
	}
	return self;
}

-(public void)enqueue:(id)object
{
	NSParameterAssert(object);
	[self.storage addObject:object];
}

-(public id)dequeue
{
	if(self.storage.count == 0) return nil;
	id object = self.storage[0];
	[self.storage removeObjectAtIndex:0];
	return object;
}

@end

//You could have a default rule that everything is public and
//only have to explicitly mark things as private