<?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.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Twig_Node_Sandbox extends Twig_Node
{
  public function __construct(Twig_NodeInterface $body, $lineno, $tag = null)
  {
    parent::__construct(['body' => $body], [], $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");
  }
}
