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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\di;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Collection of services to be configured at container compile time.
*/
class service_collection extends \ArrayObject
{
/**
* Constructor
*
* @param ContainerInterface $container Container object
*/
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/**
* {@inheritdoc}
*/
public function getIterator()
{
return new service_collection_iterator($this->container, $this);
}
/**
* {@inheritdoc}
*/
public function offsetGet($index)
{
if (($task = parent::offsetGet($index)) == null)
{
$task = $this->container->get($index);
$this->offsetSet($index, $task);
}
return $task;
}
/**
* Add a service to the collection
*
* @param string $name The service name
* @return null
*/
public function add($name)
{
$this->offsetSet($name, null);
}
}
/**
* 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)
{
if (($task = parent::offsetGet($index)) == null)
{
$task = $this->container->get($index);
$this->offsetSet($index, $task);
}
return $task;
}
/**
* {@inheritdoc}
*/
public function current()
{
if (($task = parent::current()) == null)
{
$name = $this->key();
$task = $this->container->get($name);
$this->offsetSet($name, $task);
}
return $task;
}
}
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