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<?php
/**
*
* @package phpBB3
* @copyright (c) 2011 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\di;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Iterator which load the services when they are requested
*
* @package phpBB3
*/
class service_collection_iterator extends \ArrayIterator
{
protected $container;
/**
* Construct an ArrayIterator for service_collection
*
* @param ContainerInterface $container Container object
* @param array $array The array or object to be iterated on.
* @param int $flags Flags to control the behaviour of the ArrayObject object.
* @see ArrayObject::setFlags()
*/
public function __construct(ContainerInterface $container, $array = array(), $flags = 0)
{
parent::__construct($array, $flags);
$this->container = $container;
}
/**
* {@inheritdoc}
*/
public function offsetGet($index)
{
$task = parent::offsetGet($index);
if ($task == null)
{
$task = $this->container->get($index);
$this->offsetSet($index, $task);
}
return $task;
}
/**
* {@inheritdoc}
*/
public function offsetExists($index)
{
parent::offsetExists($index);
}
/**
* {@inheritdoc}
*/
public function current()
{
$task = parent::current();
if ($task == null)
{
$name = $this->key();
$task = $this->container->get($name);
$this->offsetSet($name, $task);
}
return $task;
}
}
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