Update Twig. This closes #295

inc/lib/Twig/TemplateWrapper.php

@@ -0,0 +1,133 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exposes a template to userland.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+final class Twig_TemplateWrapper
+{
+    private $env;
+    private $template;
+
+    /**
+     * This method is for internal use only and should never be called
+     * directly (use Twig_Environment::load() instead).
+     *
+     * @internal
+     */
+    public function __construct(Twig_Environment $env, Twig_Template $template)
+    {
+        $this->env = $env;
+        $this->template = $template;
+    }
+
+    /**
+     * Renders the template.
+     *
+     * @param array $context An array of parameters to pass to the template
+     *
+     * @return string The rendered template
+     */
+    public function render($context = array())
+    {
+        return $this->template->render($context);
+    }
+
+    /**
+     * Displays the template.
+     *
+     * @param array $context An array of parameters to pass to the template
+     */
+    public function display($context = array())
+    {
+        $this->template->display($context);
+    }
+
+    /**
+     * Checks if a block is defined.
+     *
+     * @param string $name    The block name
+     * @param array  $context An array of parameters to pass to the template
+     *
+     * @return bool
+     */
+    public function hasBlock($name, $context = array())
+    {
+        return $this->template->hasBlock($name, $context);
+    }
+
+    /**
+     * Returns defined block names in the template.
+     *
+     * @param array $context An array of parameters to pass to the template
+     *
+     * @return string[] An array of defined template block names
+     */
+    public function getBlockNames($context = array())
+    {
+        return $this->template->getBlockNames($context);
+    }
+
+    /**
+     * Renders a template block.
+     *
+     * @param string $name    The block name to render
+     * @param array  $context An array of parameters to pass to the template
+     *
+     * @return string The rendered block
+     */
+    public function renderBlock($name, $context = array())
+    {
+        $context = $this->env->mergeGlobals($context);
+        $level = ob_get_level();
+        ob_start();
+        try {
+            $this->template->displayBlock($name, $context);
+        } catch (Exception $e) {
+            while (ob_get_level() > $level) {
+                ob_end_clean();
+            }
+
+            throw $e;
+        } catch (Throwable $e) {
+            while (ob_get_level() > $level) {
+                ob_end_clean();
+            }
+
+            throw $e;
+        }
+
+        return ob_get_clean();
+    }
+
+    /**
+     * Displays a template block.
+     *
+     * @param string $name    The block name to render
+     * @param array  $context An array of parameters to pass to the template
+     */
+    public function displayBlock($name, $context = array())
+    {
+        $this->template->displayBlock($name, $this->env->mergeGlobals($context));
+    }
+
+    /**
+     * @return Twig_Source
+     */
+    public function getSourceContext()
+    {
+        return $this->template->getSourceContext();
+    }
+}
+
+class_alias('Twig_TemplateWrapper', 'Twig\TemplateWrapper', false);