<?php
/**
 * @package	HikaShop for Joomla!
 * @version	2.6.3
 * @author	hikashop.com
 * @copyright	(C) 2010-2016 HIKARI SOFTWARE. All rights reserved.
 * @license	GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
 */
defined('_JEXEC') or die('Restricted access');
?><?php

class Stripe_Util_Set implements IteratorAggregate
{
	private $_elts;

	public function __construct($members = array())
	{
		$this->_elts = array();
		foreach ($members as $item) {
			$this->_elts[$item] = true;
		}
	}

	public function includes($elt)
	{
		return isset($this->_elts[$elt]);
	}

	public function add($elt)
	{
		$this->_elts[$elt] = true;
	}

	public function discard($elt)
	{
		unset($this->_elts[$elt]);
	}

	public function toArray()
	{
		return array_keys($this->_elts);
	}

	public function getIterator()
	{
		return new ArrayIterator($this->toArray());
	}
}
