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DumpExtension.php
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/
DumpExtension.php
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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\Bridge\Twig\Extension;
use Symfony\Bridge\Twig\TokenParser\DumpTokenParser;
use Symfony\Component\VarDumper\Cloner\ClonerInterface;
use Symfony\Component\VarDumper\Dumper\HtmlDumper;
use Twig\Environment;
use Twig\Extension\AbstractExtension;
use Twig\Template;
use Twig\TwigFunction;
/**
* Provides integration of the dump() function with Twig.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
class DumpExtension extends AbstractExtension
{
private $cloner;
private $dumper;
public function __construct(ClonerInterface $cloner, HtmlDumper $dumper = null)
{
$this->cloner = $cloner;
$this->dumper = $dumper;
}
public function getFunctions()
{
return array(
new TwigFunction('dump', array($this, 'dump'), array('is_safe' => array('html'), 'needs_context' => true, 'needs_environment' => true)),
);
}
public function getTokenParsers()
{
return array(new DumpTokenParser());
}
public function getName()
{
return 'dump';
}
public function dump(Environment $env, $context)
{
if (!$env->isDebug()) {
return;
}
if (2 === func_num_args()) {
$vars = array();
foreach ($context as $key => $value) {
if (!$value instanceof Template) {
$vars[$key] = $value;
}
}
$vars = array($vars);
} else {
$vars = func_get_args();
unset($vars[0], $vars[1]);
}
$dump = fopen('php://memory', 'r+b');
$this->dumper = $this->dumper ?: new HtmlDumper();
$this->dumper->setCharset($env->getCharset());
foreach ($vars as $value) {
$this->dumper->dump($this->cloner->cloneVar($value), $dump);
}
return stream_get_contents($dump, -1, 0);
}
}