WB 2.11.0

<?php

/*

 * This file is part of Twig.

 *

 * (c) 2011 Fabien Potencier

 *

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

 * file that was distributed with this source code.

 */

/**

 * Checks that a variable is null.

 *

 * <pre>

 *  {{ var is none }}

 * </pre>

 *

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

 */

class Twig_Node_Expression_Test_Null extends Twig_Node_Expression_Test

{

    public function compile(Twig_Compiler $compiler)

    {

        $compiler

            ->raw('(null === ')

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

            ->raw(')')

        ;

    }

}