inc/3rdparty/Twig/Node/Expression/Test/Constant.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) 2011 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
  12 /**
  13  * Checks if a variable is the exact same value as a constant.
  14  *
  15  * <pre>
  16  *  {% if post.status is constant('Post::PUBLISHED') %}
  17  *    the status attribute is exactly the same as Post::PUBLISHED
  18  *  {% endif %}
  19  * </pre>
  20  *
  21  * @author Fabien Potencier <fabien@symfony.com>
  22  */
  23 class Twig_Node_Expression_Test_Constant extends Twig_Node_Expression_Test
  24 {
  25     public function compile(Twig_Compiler $compiler)
  26     {
  27         $compiler
  28             ->raw('(')
  29             ->subcompile($this->getNode('node'))
  30             ->raw(' === constant(')
  31         ;
  32
  33         if ($this->getNode('arguments')->hasNode(1)) {
  34             $compiler
  35                 ->raw('get_class(')
  36                 ->subcompile($this->getNode('arguments')->getNode(1))
  37                 ->raw(')."::".')
  38             ;
  39         }
  40
  41         $compiler
  42             ->subcompile($this->getNode('arguments')->getNode(0))
  43             ->raw('))')
  44         ;
  45     }
  46 }