<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\View\Model\Layout;

/**
* Layout cache key model
*/
class CacheKey implements \Magento\Framework\View\Layout\LayoutCacheKeyInterface
{
/**
* Cache keys to be able to generate different cache id for same handles
*
* @var array
*/
private $cacheKeys = [];

/**
* Add cache key(s) for generating different cache id for same handles
*
* @param array|string $cacheKeys
* @return void
*/
public function addCacheKeys($cacheKeys)
{
if (!is_array($cacheKeys)) {
$cacheKeys = [$cacheKeys];
}
$this->cacheKeys = array_merge($this->cacheKeys, $cacheKeys);
}

/**
* Return cache keys array
*
* @return array
*/
public function getCacheKeys()
{
return $this->cacheKeys;
}
}