vendor/twig/twig/lib/Twig/Node/If.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) 2009 Fabien Potencier
   7  * (c) 2009 Armin Ronacher
   8  *
   9  * For the full copyright and license information, please view the LICENSE
  10  * file that was distributed with this source code.
  11  */
  12
  13 /**
  14  * Represents an if node.
  15  *
  16  * @author Fabien Potencier <fabien@symfony.com>
  17  */
  18 class Twig_Node_If extends Twig_Node
  19 {
  20     public function __construct(Twig_NodeInterface $tests, Twig_NodeInterface $else = null, $lineno, $tag = null)
  21     {
  22         parent::__construct(array('tests' => $tests, 'else' => $else), array(), $lineno, $tag);
  23     }
  24
  25     /**
  26      * Compiles the node to PHP.
  27      *
  28      * @param Twig_Compiler A Twig_Compiler instance
  29      */
  30     public function compile(Twig_Compiler $compiler)
  31     {
  32         $compiler->addDebugInfo($this);
  33         for ($i = 0; $i < count($this->getNode('tests')); $i += 2) {
  34             if ($i > 0) {
  35                 $compiler
  36                     ->outdent()
  37                     ->write("} elseif (")
  38                 ;
  39             } else {
  40                 $compiler
  41                     ->write('if (')
  42                 ;
  43             }
  44
  45             $compiler
  46                 ->subcompile($this->getNode('tests')->getNode($i))
  47                 ->raw(") {\n")
  48                 ->indent()
  49                 ->subcompile($this->getNode('tests')->getNode($i + 1))
  50             ;
  51         }
  52
  53         if ($this->hasNode('else') && null !== $this->getNode('else')) {
  54             $compiler
  55                 ->outdent()
  56                 ->write("} else {\n")
  57                 ->indent()
  58                 ->subcompile($this->getNode('else'))
  59             ;
  60         }
  61
  62         $compiler
  63             ->outdent()
  64             ->write("}\n");
  65     }
  66 }