4 * This file is part of Twig.
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
13 * Checks that a variable is null.
19 * @author Fabien Potencier <fabien@symfony.com>
21 class Twig_Node_Expression_Test_Null extends Twig_Node_Expression_Test
23 public function compile(Twig_Compiler $compiler)
27 ->subcompile($this->getNode('node'))
33 class_alias('Twig_Node_Expression_Test_Null', 'Twig\Node\Expression\Test\NullTest', false);