--- /dev/null
+<?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.
+ */
+
+/**
+ * Exception thrown when an error occurs during template loading.
+ *
+ * Automatic template information guessing is always turned off as
+ * if a template cannot be loaded, there is nothing to guess.
+ * However, when a template is loaded from another one, then, we need
+ * to find the current context and this is automatically done by
+ * Twig_Template::displayWithErrorHandling().
+ *
+ * This strategy makes Twig_Environment::resolveTemplate() much faster.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error_Loader extends Twig_Error
+{
+ public function __construct($message, $lineno = -1, $source = null, Exception $previous = null)
+ {
+ if (PHP_VERSION_ID < 50300) {
+ $this->previous = $previous;
+ Exception::__construct('');
+ } else {
+ Exception::__construct('', 0, $previous);
+ }
+ $this->appendMessage($message);
+ $this->setTemplateLine(false);
+ }
+}