<?php

/*

 * This file is part of Twig.

 *

 * (c) 2010 Fabien Potencier

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

/**

 * Represents a sandbox node.

 *

 * @package    twig

 * @author     Fabien Potencier <fabien@symfony.com>

 */

class Twig_Node_Sandbox extends Twig_Node

{

    public function __construct(Twig_NodeInterface $body, $lineno, $tag = null)

    {

        parent::__construct(array('body' => $body), array(), $lineno, $tag);

    }

    /**

     * Compiles the node to PHP.

     *

     * @param Twig_Compiler A Twig_Compiler instance

     */

    public function compile(Twig_Compiler $compiler)

    {

        $compiler

            ->addDebugInfo($this)

            ->write("\$sandbox = \$this->env->getExtension('sandbox');\n")

            ->write("if (!\$alreadySandboxed = \$sandbox->isSandboxed()) {\n")

            ->indent()

            ->write("\$sandbox->enableSandbox();\n")

            ->outdent()

            ->write("}\n")

            ->subcompile($this->getNode('body'))

            ->write("if (!\$alreadySandboxed) {\n")

            ->indent()

            ->write("\$sandbox->disableSandbox();\n")

            ->outdent()

            ->write("}\n")

        ;

    }

}