www.aleph1.co.uk Git - yaffs-website/blob - vendor/twig/twig/lib/Twig/Node/Macro.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) 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 macro node.
  14  *
  15  * @author Fabien Potencier <fabien@symfony.com>
  16  */
  17 class Twig_Node_Macro extends Twig_Node
  18 {
  19     const VARARGS_NAME = 'varargs';
  20
  21     public function __construct($name, Twig_NodeInterface $body, Twig_NodeInterface $arguments, $lineno, $tag = null)
  22     {
  23         foreach ($arguments as $argumentName => $argument) {
  24             if (self::VARARGS_NAME === $argumentName) {
  25                 throw new Twig_Error_Syntax(sprintf('The argument "%s" in macro "%s" cannot be defined because the variable "%s" is reserved for arbitrary arguments.', self::VARARGS_NAME, $name, self::VARARGS_NAME), $argument->getTemplateLine());
  26             }
  27         }
  28
  29         parent::__construct(array('body' => $body, 'arguments' => $arguments), array('name' => $name), $lineno, $tag);
  30     }
  31
  32     public function compile(Twig_Compiler $compiler)
  33     {
  34         $compiler
  35             ->addDebugInfo($this)
  36             ->write(sprintf('public function get%s(', $this->getAttribute('name')))
  37         ;
  38
  39         $count = count($this->getNode('arguments'));
  40         $pos = 0;
  41         foreach ($this->getNode('arguments') as $name => $default) {
  42             $compiler
  43                 ->raw('$__'.$name.'__ = ')
  44                 ->subcompile($default)
  45             ;
  46
  47             if (++$pos < $count) {
  48                 $compiler->raw(', ');
  49             }
  50         }
  51
  52         if (PHP_VERSION_ID >= 50600) {
  53             if ($count) {
  54                 $compiler->raw(', ');
  55             }
  56
  57             $compiler->raw('...$__varargs__');
  58         }
  59
  60         $compiler
  61             ->raw(")\n")
  62             ->write("{\n")
  63             ->indent()
  64         ;
  65
  66         $compiler
  67             ->write("\$context = \$this->env->mergeGlobals(array(\n")
  68             ->indent()
  69         ;
  70
  71         foreach ($this->getNode('arguments') as $name => $default) {
  72             $compiler
  73                 ->write('')
  74                 ->string($name)
  75                 ->raw(' => $__'.$name.'__')
  76                 ->raw(",\n")
  77             ;
  78         }
  79
  80         $compiler
  81             ->write('')
  82             ->string(self::VARARGS_NAME)
  83             ->raw(' => ')
  84         ;
  85
  86         if (PHP_VERSION_ID >= 50600) {
  87             $compiler->raw("\$__varargs__,\n");
  88         } else {
  89             $compiler
  90                 ->raw('func_num_args() > ')
  91                 ->repr($count)
  92                 ->raw(' ? array_slice(func_get_args(), ')
  93                 ->repr($count)
  94                 ->raw(") : array(),\n")
  95             ;
  96         }
  97
  98         $compiler
  99             ->outdent()
 100             ->write("));\n\n")
 101             ->write("\$blocks = array();\n\n")
 102             ->write("ob_start();\n")
 103             ->write("try {\n")
 104             ->indent()
 105             ->subcompile($this->getNode('body'))
 106             ->outdent()
 107             ->write("} catch (Exception \$e) {\n")
 108             ->indent()
 109             ->write("ob_end_clean();\n\n")
 110             ->write("throw \$e;\n")
 111             ->outdent()
 112             ->write("} catch (Throwable \$e) {\n")
 113             ->indent()
 114             ->write("ob_end_clean();\n\n")
 115             ->write("throw \$e;\n")
 116             ->outdent()
 117             ->write("}\n\n")
 118             ->write("return ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());\n")
 119             ->outdent()
 120             ->write("}\n\n")
 121         ;
 122     }
 123 }
 124
 125 class_alias('Twig_Node_Macro', 'Twig\Node\MacroNode', false);