add Twig & refactor poche

inc/Twig/Extensions/Node/Debug.php

@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a debug node.
+ *
+ * @package    twig
+ * @subpackage Twig-extensions
+ * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
+ * @version    SVN: $Id$
+ */
+class Twig_Extensions_Node_Debug extends Twig_Node
+{
+    public function __construct(Twig_Node_Expression $expr = null, $lineno, $tag = null)
+    {
+        parent::__construct(array('expr' => $expr), array(), $lineno, $tag);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param Twig_Compiler A Twig_Compiler instance
+     */
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+
+        $compiler
+            ->write("if (\$this->env->isDebug()) {\n")
+            ->indent()
+        ;
+
+        if (null === $this->getNode('expr')) {
+            // remove embedded templates (macros) from the context
+            $compiler
+                ->write("\$vars = array();\n")
+                ->write("foreach (\$context as \$key => \$value) {\n")
+                ->indent()
+                ->write("if (!\$value instanceof Twig_Template) {\n")
+                ->indent()
+                ->write("\$vars[\$key] = \$value;\n")
+                ->outdent()
+                ->write("}\n")
+                ->outdent()
+                ->write("}\n")
+                ->write("var_dump(\$vars);\n")
+            ;
+        } else {
+            $compiler
+                ->write("var_dump(")
+                ->subcompile($this->getNode('expr'))
+                ->raw(");\n")
+            ;
+        }
+
+        $compiler
+            ->outdent()
+            ->write("}\n")
+        ;
+    }
+}