//
//  BlockEnumerator.m
//  Ross Utils Library
//
//  Created by Richard Ross on 2/1/11.
//  Copyright 2011 Ultimate Computer Services Inc. All rights reserved.
//

#import "BlockEnumerator.h"

MoveNextBlock MOVENEXT_NULL_BLOCK = ^ { return NO; };
CurrentBlock CURRENT_NULL_BLOCK = ^ { return (id)(nil); };
ResetBlock RESET_NULL_BLOCK = ^ { return; };
DeallocBlock DEALLOC_NULL_BLOCK = ^ { return; };


@implementation BlockEnumerator

@synthesize moveNext=m_moveNext, current=m_current, reset=m_reset, dealloc=m_dealloc;

-(id) init
{
	if (self = [super init])
	{
		[self setMoveNext:MOVENEXT_NULL_BLOCK];
		[self setCurrent:CURRENT_NULL_BLOCK];
		[self setReset:RESET_NULL_BLOCK];
		[self setDealloc:DEALLOC_NULL_BLOCK];
	}

	return self;
}

-(BOOL) moveNext
{
	if (m_moveNext == NULL)
	{
		return NO;
	}
	else return m_moveNext();

}

-(id) current
{
	if (m_current == NULL)
		return nil;

	else return m_current();
}

-(void) reset
{
	if (m_reset == NULL)
		return;
	else m_reset();
}

-(void) dealloc {
	m_dealloc();
	Block_release(m_moveNext);
	Block_release(m_current);
	Block_release(m_reset);
	Block_release(m_dealloc);
	[super dealloc];
}

@end