class Twig_Function_Method

class Twig_Function_Method extends Twig_Function {
  protected $extension;
  protected $method;
  public function __construct(Twig_ExtensionInterface $extension, $method, array $options = array()) {
    $options['callable'] = array(
      $extension,
      $method,
    );
    parent::__construct($options);
    $this->extension = $extension;
    $this->method = $method;
  }
  public function compile() {
    return sprintf('$this->env->getExtension(\'%s\')->%s', $this->extension
      ->getName(), $this->method);
  }

}