--- /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\Argument\Token;
+
+/**
+ * Argument token interface.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+interface TokenInterface
+{
+ /**
+ * Calculates token match score for provided argument.
+ *
+ * @param $argument
+ *
+ * @return bool|int
+ */
+ public function scoreArgument($argument);
+
+ /**
+ * Returns true if this token prevents check of other tokens (is last one).
+ *
+ * @return bool|int
+ */
+ public function isLast();
+
+ /**
+ * Returns string representation for token.
+ *
+ * @return string
+ */
+ public function __toString();
+}