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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. */ namespace Twig\Node; use Twig\Compiler; use Twig\Node\Expression\AbstractExpression; /** * 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 <[email protected]> */ class CheckToStringNode extends AbstractExpression { public function __construct(AbstractExpression $expr) { parent::__construct(['expr' => $expr], [], $expr->getTemplateLine(), $expr->getNodeTag()); } public function compile(Compiler $compiler) { $expr = $this->getNode('expr'); $compiler ->raw('$this->sandbox->ensureToStringAllowed(') ->subcompile($expr) ->raw(', ') ->repr($expr->getTemplateLine()) ->raw(', $this->source)') ; } }