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<?php
/*
* 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\HttpKernel\DataCollector;
use Symfony\Component\HttpKernel\DataCollector\Util\ValueExporter;
use Symfony\Component\VarDumper\Caster\CutStub;
use Symfony\Component\VarDumper\Cloner\ClonerInterface;
use Symfony\Component\VarDumper\Cloner\Data;
use Symfony\Component\VarDumper\Cloner\Stub;
use Symfony\Component\VarDumper\Cloner\VarCloner;
/**
* DataCollector.
*
* Children of this class must store the collected data in the data property.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bernhard Schussek <bschussek@symfony.com>
*/
abstract class DataCollector implements DataCollectorInterface, \Serializable
{
protected $data = array();
/**
* @var ValueExporter
*/
private $valueExporter;
/**
* @var ClonerInterface
*/
private $cloner;
public function serialize()
{
return serialize($this->data);
}
public function unserialize($data)
{
$this->data = unserialize($data);
}
/**
* Converts the variable into a serializable Data instance.
*
* This array can be displayed in the template using
* the VarDumper component.
*
* @param mixed $var
*
* @return Data
*/
protected function cloneVar($var)
{
if ($var instanceof Data) {
return $var;
}
if (null === $this->cloner) {
if (class_exists(CutStub::class)) {
$this->cloner = new VarCloner();
$this->cloner->setMaxItems(-1);
$this->cloner->addCasters($this->getCasters());
} else {
@trigger_error(sprintf('Using the %s() method without the VarDumper component is deprecated since Symfony 3.2 and won\'t be supported in 4.0. Install symfony/var-dumper version 3.2 or above.', __METHOD__), E_USER_DEPRECATED);
$this->cloner = false;
}
}
if (false === $this->cloner) {
if (null === $this->valueExporter) {
$this->valueExporter = new ValueExporter();
}
return $this->valueExporter->exportValue($var);
}
return $this->cloner->cloneVar($var);
}
/**
* Converts a PHP variable to a string.
*
* @param mixed $var A PHP variable
*
* @return string The string representation of the variable
*
* @deprecated since version 3.2, to be removed in 4.0. Use cloneVar() instead.
*/
protected function varToString($var)
{
@trigger_error(sprintf('The %s() method is deprecated since Symfony 3.2 and will be removed in 4.0. Use cloneVar() instead.', __METHOD__), E_USER_DEPRECATED);
if (null === $this->valueExporter) {
$this->valueExporter = new ValueExporter();
}
return $this->valueExporter->exportValue($var);
}
/**
* @return callable[] The casters to add to the cloner
*/
protected function getCasters()
{
return array(
'*' => function ($v, array $a, Stub $s, $isNested) {
if (!$v instanceof Stub) {
foreach ($a as $k => $v) {
if (is_object($v) && !$v instanceof \DateTimeInterface && !$v instanceof Stub) {
$a[$k] = new CutStub($v);
}
}
}
return $a;
},
);
}
}