/usr/share/php/Symfony/Component/Cache/Traits/ArrayTrait.php is in php-symfony-cache 3.4.6+dfsg-1.
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/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Cache\Traits;
use Psr\Log\LoggerAwareTrait;
use Symfony\Component\Cache\CacheItem;
/**
* @author Nicolas Grekas <p@tchwork.com>
*
* @internal
*/
trait ArrayTrait
{
use LoggerAwareTrait;
private $storeSerialized;
private $values = array();
private $expiries = array();
/**
* Returns all cached values, with cache miss as null.
*
* @return array
*/
public function getValues()
{
return $this->values;
}
/**
* {@inheritdoc}
*/
public function hasItem($key)
{
CacheItem::validateKey($key);
return isset($this->expiries[$key]) && ($this->expiries[$key] >= time() || !$this->deleteItem($key));
}
/**
* {@inheritdoc}
*/
public function clear()
{
$this->values = $this->expiries = array();
return true;
}
/**
* {@inheritdoc}
*/
public function deleteItem($key)
{
CacheItem::validateKey($key);
unset($this->values[$key], $this->expiries[$key]);
return true;
}
/**
* {@inheritdoc}
*/
public function reset()
{
$this->clear();
}
private function generateItems(array $keys, $now, $f)
{
foreach ($keys as $i => $key) {
try {
if (!$isHit = isset($this->expiries[$key]) && ($this->expiries[$key] >= $now || !$this->deleteItem($key))) {
$this->values[$key] = $value = null;
} elseif (!$this->storeSerialized) {
$value = $this->values[$key];
} elseif ('b:0;' === $value = $this->values[$key]) {
$value = false;
} elseif (false === $value = unserialize($value)) {
$this->values[$key] = $value = null;
$isHit = false;
}
} catch (\Exception $e) {
CacheItem::log($this->logger, 'Failed to unserialize key "{key}"', array('key' => $key, 'exception' => $e));
$this->values[$key] = $value = null;
$isHit = false;
}
unset($keys[$i]);
yield $key => $f($key, $value, $isHit);
}
foreach ($keys as $key) {
yield $key => $f($key, null, false);
}
}
}
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