Unary.php

<?php

/*
 * This file is part of Twig.
 *
 * (c) 2009 Fabien Potencier
 * (c) 2009 Armin Ronacher
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
abstract class Twig_Node_Expression_Unary extends Twig_Node_Expression {
  public function __construct(Twig_NodeInterface $node, $lineno) {
    parent::__construct(array(
      'node' => $node,
    ), array(), $lineno);
  }
  public function compile(Twig_Compiler $compiler) {
    $compiler
      ->raw('(');
    $this
      ->operator($compiler);
    $compiler
      ->subcompile($this
      ->getNode('node'))
      ->raw(')');
  }
  public abstract function operator(Twig_Compiler $compiler);

}