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<?php | ||
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/* | ||
* 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. | ||
*/ | ||
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namespace Twig\Node; | ||
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use Twig\Compiler; | ||
use Twig\Node\Expression\AbstractExpression; | ||
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/** | ||
* Checks if casting an expression to __toString() is allowed by the sandbox. | ||
* | ||
* For instance, 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. The same goes for {{ article|upper }} | ||
* or {{ random(article) }} | ||
* | ||
* @author Fabien Potencier <fabien@symfony.com> | ||
*/ | ||
class CheckToStringNode extends Node | ||
{ | ||
public function __construct(AbstractExpression $expr) | ||
{ | ||
parent::__construct(['expr' => $expr], [], $expr->getTemplateLine(), $expr->getNodeTag()); | ||
} | ||
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public function compile(Compiler $compiler) | ||
{ | ||
$compiler | ||
->raw('$this->sandbox->ensureToStringAllowed(') | ||
->subcompile($this->getNode('expr')) | ||
->raw(')') | ||
; | ||
} | ||
} |
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