[Security] PHPDoc in SecurityEvents

src/Symfony/Component/Security/Http/SecurityEvents.php

@@ -13,7 +13,25 @@ namespace Symfony\Component\Security\Http;
 
 final class SecurityEvents
 {
+    /**
+     * The INTERACTIVE_LOGIN event occurs after a user is logged in
+     * interactively for authentication based on http, cookies or X509.
+     *
+     * The event listener method receives a
+     * Symfony\Component\Security\Http\Event\InteractiveLoginEvent instance.
+     *
+     * @var string
+     */
     const INTERACTIVE_LOGIN = 'security.interactive_login';
 
+    /**
+     * The SWITCH_USER event occurs before switch to another user and
+     * before exit from an already switched user.
+     *
+     * The event listener method receives a
+     * Symfony\Component\Security\Http\Event\SwitchUserEvent instance.
+     *
+     * @var string
+     */
     const SWITCH_USER = 'security.switch_user';
 }