vendor/twig/twig/lib/Twig/Node/Include.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 include node.
  15  *
  16  * @author Fabien Potencier <fabien@symfony.com>
  17  */
  18 class Twig_Node_Include extends Twig_Node implements Twig_NodeOutputInterface
  19 {
  20     public function __construct(Twig_Node_Expression $expr, Twig_Node_Expression $variables = null, $only = false, $ignoreMissing = false, $lineno, $tag = null)
  21     {
  22         parent::__construct(array('expr' => $expr, 'variables' => $variables), array('only' => (Boolean) $only, 'ignore_missing' => (Boolean) $ignoreMissing), $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
  34         if ($this->getAttribute('ignore_missing')) {
  35             $compiler
  36                 ->write("try {\n")
  37                 ->indent()
  38             ;
  39         }
  40
  41         $this->addGetTemplate($compiler);
  42
  43         $compiler->raw('->display(');
  44
  45         $this->addTemplateArguments($compiler);
  46
  47         $compiler->raw(");\n");
  48
  49         if ($this->getAttribute('ignore_missing')) {
  50             $compiler
  51                 ->outdent()
  52                 ->write("} catch (Twig_Error_Loader \$e) {\n")
  53                 ->indent()
  54                 ->write("// ignore missing template\n")
  55                 ->outdent()
  56                 ->write("}\n\n")
  57             ;
  58         }
  59     }
  60
  61     protected function addGetTemplate(Twig_Compiler $compiler)
  62     {
  63         if ($this->getNode('expr') instanceof Twig_Node_Expression_Constant) {
  64             $compiler
  65                 ->write("\$this->env->loadTemplate(")
  66                 ->subcompile($this->getNode('expr'))
  67                 ->raw(")")
  68             ;
  69         } else {
  70             $compiler
  71                 ->write("\$template = \$this->env->resolveTemplate(")
  72                 ->subcompile($this->getNode('expr'))
  73                 ->raw(");\n")
  74                 ->write('$template')
  75             ;
  76         }
  77     }
  78
  79     protected function addTemplateArguments(Twig_Compiler $compiler)
  80     {
  81         if (false === $this->getAttribute('only')) {
  82             if (null === $this->getNode('variables')) {
  83                 $compiler->raw('$context');
  84             } else {
  85                 $compiler
  86                     ->raw('array_merge($context, ')
  87                     ->subcompile($this->getNode('variables'))
  88                     ->raw(')')
  89                 ;
  90             }
  91         } else {
  92             if (null === $this->getNode('variables')) {
  93                 $compiler->raw('array()');
  94             } else {
  95                 $compiler->subcompile($this->getNode('variables'));
  96             }
  97         }
  98     }
  99 }