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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Bridge\Twig\Extension;
  13  
  14  use Symfony\Component\ExpressionLanguage\Expression;
  15  use Twig\Extension\AbstractExtension;
  16  use Twig\TwigFunction;
  17  
  18  /**
  19   * ExpressionExtension gives a way to create Expressions from a template.
  20   *
  21   * @author Fabien Potencier <fabien@symfony.com>
  22   */
  23  class ExpressionExtension extends AbstractExtension
  24  {
  25      /**
  26       * {@inheritdoc}
  27       */
  28      public function getFunctions()
  29      {
  30          return [
  31              new TwigFunction('expression', [$this, 'createExpression']),
  32          ];
  33      }
  34  
  35      public function createExpression($expression)
  36      {
  37          return new Expression($expression);
  38      }
  39  
  40      /**
  41       * Returns the name of the extension.
  42       *
  43       * @return string The extension name
  44       */
  45      public function getName()
  46      {
  47          return 'expression';
  48      }
  49  }