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<?php /* * This file is part of Twig. * * (c) Fabien Potencier * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Twig\Node\Expression\Test; use Twig\Compiler; use Twig\Node\Expression\TestExpression; /** * Checks that a variable is null. * * {{ var is none }} * * @author Fabien Potencier <fabien@symfony.com> */ class NullTest extends TestExpression { public function compile(Compiler $compiler) { $compiler ->raw('(null === ') ->subcompile($this->getNode('node')) ->raw(')') ; } } class_alias('Twig\Node\Expression\Test\NullTest', 'Twig_Node_Expression_Test_Null');