Add compatability for Symfony\Contracts\EventDispatcher\Event

Author: André R

src/BaseEvent.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the FOSHttpCache package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FOS\HttpCache;
+
+use Symfony\Contracts\EventDispatcher\Event as ContractEvent;
+use Symfony\Component\EventDispatcher\Event as OldEvent;
+
+if (class_exists(ContractEvent::class)) {
+    class BaseEvent extends ContractEvent
+    {
+    }
+} else {
+    /**
+     * @codeCoverageIgnore
+     * @ignore This is purely for 3.4 comparability.
+     */
+    class BaseEvent extends OldEvent
+    {
+    }
+}

src/Event.php

@@ -11,8 +11,6 @@
 
 namespace FOS\HttpCache;
 
-use Symfony\Component\EventDispatcher\Event as BaseEvent;
-
 class Event extends BaseEvent
 {
     private $exception;

src/SymfonyCache/CacheEvent.php

@@ -11,7 +11,7 @@
 
 namespace FOS\HttpCache\SymfonyCache;
 
-use Symfony\Component\EventDispatcher\Event;
+use FOS\HttpCache\BaseEvent;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
@@ -21,7 +21,7 @@
  *
  * @author David Buchmann <[email protected]>
  */
-class CacheEvent extends Event
+class CacheEvent extends BaseEvent
 {
     /**
      * @var CacheInvalidation