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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Twig_Node_SandboxedPrint adds a check for the __toString() method
* when the variable is an object and the sandbox is activated.
*
* When there is a simple Print statement, like {{ article }},
* and if the sandbox is enabled, we need to check that the __toString()
* method is allowed if 'article' is an object.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Twig_Node_SandboxedPrint extends Twig_Node_Print
{
public function compile(Twig_Compiler $compiler)
{
$compiler
->addDebugInfo($this)
->write('echo $this->env->getExtension(\'Twig_Extension_Sandbox\')->ensureToStringAllowed(')
->subcompile($this->getNode('expr'))
->raw(");\n")
;
}
/**
* Removes node filters.
*
* This is mostly needed when another visitor adds filters (like the escaper one).
*
* @return Twig_Node
*/
protected function removeNodeFilter(Twig_Node $node)
{
if ($node instanceof Twig_Node_Expression_Filter) {
return $this->removeNodeFilter($node->getNode('node'));
}
return $node;
}
}