Syntax sugar idea for collections in ObjC 2.0

collections.m

/*
 * Syntax sugar for collections
 * [overlap :@"key"].integer = 0;
 *
 * gcc -framework Foundation collections.m
 *
 */
 
#import <Foundation/Foundation.h>

@interface Hash : NSObject {
	NSMutableDictionary *dict;
}

+ (Hash *)forKey:(id)k target:(Hash *)target;
- (Hash *):(id)key;

@property (readwrite) int integer;
@property (readwrite, assign) Hash *target;
@property (readwrite, assign) id key;

@end

@implementation Hash

@synthesize integer;
@synthesize key;
@synthesize target;

- (id)init
{
	if ((self = [super init])) {
		dict = [[NSMutableDictionary alloc] init];
	}
	return self;
}

- (void)setValue:(id)v forKey:(id)k
{
	[dict setValue:v forKey:k];
}

- (void)dealloc
{
	[dict release];
	return [super dealloc];
}

- (NSString *)description
{
	return [dict description];
}

+ (Hash *)forKey:(id)k target:(Hash *)target
{
	Hash *tmp = [Hash new];
	tmp.key = k;
	tmp.target = target;
	return [tmp autorelease];
}

- (void)setInteger:(int)i
{
	[target setValue:[NSNumber numberWithInteger:i] forKey:key];
}

- (Hash *):(id)k
{
	return [Hash forKey:k target:self];
}

@end

int main(void)
{
	Hash *overlap = [Hash new];
	[overlap :@"key1"].integer = 1;
	[overlap :@"key2"].integer = 2;
	NSLog(@"%@", overlap);
	return 0;
}