inc/Twig/Extensions/Node/Debug.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) 2010 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  * Represents a debug node.
  14  *
  15  * @package    twig
  16  * @subpackage Twig-extensions
  17  * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
  18  * @version    SVN: $Id$
  19  */
  20 class Twig_Extensions_Node_Debug extends Twig_Node
  21 {
  22     public function __construct(Twig_Node_Expression $expr = null, $lineno, $tag = null)
  23     {
  24         parent::__construct(array('expr' => $expr), array(), $lineno, $tag);
  25     }
  26
  27     /**
  28      * Compiles the node to PHP.
  29      *
  30      * @param Twig_Compiler A Twig_Compiler instance
  31      */
  32     public function compile(Twig_Compiler $compiler)
  33     {
  34         $compiler->addDebugInfo($this);
  35
  36         $compiler
  37             ->write("if (\$this->env->isDebug()) {\n")
  38             ->indent()
  39         ;
  40
  41         if (null === $this->getNode('expr')) {
  42             // remove embedded templates (macros) from the context
  43             $compiler
  44                 ->write("\$vars = array();\n")
  45                 ->write("foreach (\$context as \$key => \$value) {\n")
  46                 ->indent()
  47                 ->write("if (!\$value instanceof Twig_Template) {\n")
  48                 ->indent()
  49                 ->write("\$vars[\$key] = \$value;\n")
  50                 ->outdent()
  51                 ->write("}\n")
  52                 ->outdent()
  53                 ->write("}\n")
  54                 ->write("var_dump(\$vars);\n")
  55             ;
  56         } else {
  57             $compiler
  58                 ->write("var_dump(")
  59                 ->subcompile($this->getNode('expr'))
  60                 ->raw(");\n")
  61             ;
  62         }
  63
  64         $compiler
  65             ->outdent()
  66             ->write("}\n")
  67         ;
  68     }
  69 }