add Command interface supertype, for Middleware typehinting;

Author: ashnazg

src/phpDocumentor/Reflection/Middleware/Command.php

@@ -0,0 +1,22 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * This file is part of phpDocumentor.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright 2010-2018 Mike van Riel<mike@phpdoc.org>
+ * @license   http://www.opensource.org/licenses/mit-license.php MIT
+ * @link      http://phpdoc.org
+ */
+
+namespace phpDocumentor\Reflection\Middleware;
+
+/**
+ * Commands are used by Middleware
+ */
+interface Command
+{
+}

src/phpDocumentor/Reflection/Middleware/Middleware.php

@@ -22,9 +22,7 @@ interface Middleware
     /**
      * Executes this middle ware class.
      *
-     * @param object $command
-     *
      * @return object
      */
-    public function execute($command, callable $next);
+    public function execute(Command $command, callable $next);
 }

src/phpDocumentor/Reflection/Php/Factory/File/CreateCommand.php

@@ -15,13 +15,14 @@
 namespace phpDocumentor\Reflection\Php\Factory\File;
 
 use phpDocumentor\Reflection\File;
+use phpDocumentor\Reflection\Middleware\Command;
 use phpDocumentor\Reflection\Php\StrategyContainer;
 
 /**
  * File Create command is used by the File Factory Strategy.
  * The command is passed to the registered middle ware classes.
  */
-final class CreateCommand
+final class CreateCommand implements Command
 {
     /**
      * @var File