vichan/inc/lib/Twig/Node/Expression/Unary/Neg.php

<?php

/*
 * This file is part of Twig.
 *
 * (c) Fabien Potencier
 * (c) Armin Ronacher
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
class Twig_Node_Expression_Unary_Neg extends Twig_Node_Expression_Unary
{
    public function operator(Twig_Compiler $compiler)
    {
        $compiler->raw('-');
    }
}

class_alias('Twig_Node_Expression_Unary_Neg', 'Twig\Node\Expression\Unary\NegUnary', false);