--- /dev/null
+<?php
+
+/*
+ * This file is part of the Prophecy.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ * Marcello Duarte <marcello.duarte@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Prophecy\Doubler;
+
+use ReflectionClass;
+
+/**
+ * Name generator.
+ * Generates classname for double.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+class NameGenerator
+{
+ private static $counter = 1;
+
+ /**
+ * Generates name.
+ *
+ * @param ReflectionClass $class
+ * @param ReflectionClass[] $interfaces
+ *
+ * @return string
+ */
+ public function name(ReflectionClass $class = null, array $interfaces)
+ {
+ $parts = array();
+
+ if (null !== $class) {
+ $parts[] = $class->getName();
+ } else {
+ foreach ($interfaces as $interface) {
+ $parts[] = $interface->getShortName();
+ }
+ }
+
+ if (!count($parts)) {
+ $parts[] = 'stdClass';
+ }
+
+ return sprintf('Double\%s\P%d', implode('\\', $parts), self::$counter++);
+ }
+}