Fix Event deprecations messages

Author: Jeremiah VALERIE

.travis.yml

@@ -47,7 +47,7 @@ jobs:
         - php: 7.3
           env: SYMFONY_VERSION=4.2.*
         - php: 7.3
-          env: SYMFONY_VERSION=4.3.*
+          env: SYMFONY_VERSION=4.3.* SYMFONY_DEPRECATIONS_HELPER=max[total]=0
         - php: nightly
           env: COMPOSER_UPDATE_FLAGS=--ignore-platform-reqs
 

src/Event/ErrorFormattingEvent.php

@@ -3,32 +3,63 @@
 namespace Overblog\GraphQLBundle\Event;
 
 use GraphQL\Error\Error;
-use Symfony\Component\EventDispatcher\Event;
+use Symfony\Contracts\EventDispatcher\Event;
 
-final class ErrorFormattingEvent extends Event
-{
-    /** @var Error */
-    private $error;
+// TODO(mcg-web): remove hack after migrating Symfony >= 4.3
+if (EventDispatcherVersionHelper::isForLegacy()) {
+    final class ErrorFormattingEvent extends \Symfony\Component\EventDispatcher\Event
+    {
+        /** @var Error */
+        private $error;
 
-    /** @var \ArrayObject */
-    private $formattedError;
+        /** @var \ArrayObject */
+        private $formattedError;
 
-    public function __construct(Error $error, array $formattedError)
-    {
-        $this->error = $error;
-        $this->formattedError = new \ArrayObject($formattedError);
-    }
+        public function __construct(Error $error, array $formattedError)
+        {
+            $this->error = $error;
+            $this->formattedError = new \ArrayObject($formattedError);
+        }
 
-    public function getError()
-    {
-        return $this->error;
-    }
+        public function getError()
+        {
+            return $this->error;
+        }
 
-    /**
-     * @return \ArrayObject
-     */
-    public function getFormattedError()
+        /**
+         * @return \ArrayObject
+         */
+        public function getFormattedError()
+        {
+            return $this->formattedError;
+        }
+    }
+} else {
+    final class ErrorFormattingEvent extends Event
     {
-        return $this->formattedError;
+        /** @var Error */
+        private $error;
+
+        /** @var \ArrayObject */
+        private $formattedError;
+
+        public function __construct(Error $error, array $formattedError)
+        {
+            $this->error = $error;
+            $this->formattedError = new \ArrayObject($formattedError);
+        }
+
+        public function getError()
+        {
+            return $this->error;
+        }
+
+        /**
+         * @return \ArrayObject
+         */
+        public function getFormattedError()
+        {
+            return $this->formattedError;
+        }
     }
 }

src/Event/EventDispatcherVersionHelper.php

@@ -7,6 +7,7 @@
 
 /**
  * @internal
+ * TODO(mcg-web): delete hack after migrating Symfony >= 4.3
  */
 final class EventDispatcherVersionHelper
 {