Add PHP types to private methods and functions

Author: wouterj

Authenticator/JsonLoginAuthenticator.php

@@ -136,7 +136,7 @@ public function setTranslator(TranslatorInterface $translator)
         $this->translator = $translator;
     }
 
-    private function getCredentials(Request $request)
+    private function getCredentials(Request $request): array
     {
         $data = json_decode($request->getContent());
         if (!$data instanceof \stdClass) {

Firewall/AccessListener.php

@@ -86,7 +86,7 @@ public function authenticate(RequestEvent $event)
         }
     }
 
-    private function createAccessDeniedException(Request $request, array $attributes)
+    private function createAccessDeniedException(Request $request, array $attributes): AccessDeniedException
     {
         $exception = new AccessDeniedException();
         $exception->setAttributes($attributes);