Using ::class notation

Modules/Dashboard/Providers/WidgetServiceProvider.php

@@ -9,10 +9,10 @@ class WidgetServiceProvider extends ServiceProvider
 {
     public function register()
     {
-        $this->app->singleton('Modules\Dashboard\Composers\WidgetViewComposer', function () {
+        $this->app->singleton(WidgetViewComposer::class, function () {
             return new WidgetViewComposer();
         });
 
-        $this->app['view']->composer('dashboard::admin.dashboard', 'Modules\Dashboard\Composers\WidgetViewComposer');
+        $this->app['view']->composer('dashboard::admin.dashboard', WidgetViewComposer::class);
     }
 }