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  * @package    twig

    17  * @author     Fabien Potencier <fabien@symfony.com>

    18  */

    19 class Twig_Node_If extends Twig_Node

    20 {

    21     public function __construct(Twig_NodeInterface $tests, Twig_NodeInterface $else = null, $lineno, $tag = null)

    22     {

    23         parent::__construct(array('tests' => $tests, 'else' => $else), array(), $lineno, $tag);

    24     }

    25 

    26     /**

    27      * Compiles the node to PHP.

    28      *

    29      * @param Twig_Compiler A Twig_Compiler instance

    30      */

    31     public function compile(Twig_Compiler $compiler)

    32     {

    33         $compiler->addDebugInfo($this);

    34         for ($i = 0; $i < count($this->getNode('tests')); $i += 2) {

    35             if ($i > 0) {

    36                 $compiler

    37                     ->outdent()

    38                     ->write("} elseif (")

    39                 ;

    40             } else {

    41                 $compiler

    42                     ->write('if (')

    43                 ;

    44             }

    45 

    46             $compiler

    47                 ->subcompile($this->getNode('tests')->getNode($i))

    48                 ->raw(") {\n")

    49                 ->indent()

    50                 ->subcompile($this->getNode('tests')->getNode($i + 1))

    51             ;

    52         }

    53 

    54         if ($this->hasNode('else') && null !== $this->getNode('else')) {

    55             $compiler

    56                 ->outdent()

    57                 ->write("} else {\n")

    58                 ->indent()

    59                 ->subcompile($this->getNode('else'))

    60             ;

    61         }

    62 

    63         $compiler

    64             ->outdent()

    65             ->write("}\n");

    66     }

    67 }