1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) Fabien Potencier
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Twig\Node\Expression\Test;
13
14use Twig\Compiler;
15use Twig\Node\Expression\TestExpression;
16
17/**
18 * Checks if a variable is the exact same value as a constant.
19 *
20 *    {% if post.status is constant('Post::PUBLISHED') %}
21 *      the status attribute is exactly the same as Post::PUBLISHED
22 *    {% endif %}
23 *
24 * @author Fabien Potencier <fabien@symfony.com>
25 */
26class ConstantTest extends TestExpression
27{
28    public function compile(Compiler $compiler)
29    {
30        $compiler
31            ->raw('(')
32            ->subcompile($this->getNode('node'))
33            ->raw(' === constant(')
34        ;
35
36        if ($this->getNode('arguments')->hasNode(1)) {
37            $compiler
38                ->raw('get_class(')
39                ->subcompile($this->getNode('arguments')->getNode(1))
40                ->raw(')."::".')
41            ;
42        }
43
44        $compiler
45            ->subcompile($this->getNode('arguments')->getNode(0))
46            ->raw('))')
47        ;
48    }
49}
50
51class_alias('Twig\Node\Expression\Test\ConstantTest', 'Twig_Node_Expression_Test_Constant');
52