--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Exception;
+
+/**
+ * This exception is thrown when a circular reference in a parameter is detected.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ParameterCircularReferenceException extends RuntimeException
+{
+ private $parameters;
+
+ public function __construct($parameters, \Exception $previous = null)
+ {
+ parent::__construct(sprintf('Circular reference detected for parameter "%s" ("%s" > "%s").', $parameters[0], implode('" > "', $parameters), $parameters[0]), 0, $previous);
+
+ $this->parameters = $parameters;
+ }
+
+ public function getParameters()
+ {
+ return $this->parameters;
+ }
+}