Add default to switch

src/playlist/playlistlistmodel.cpp

@@ -117,6 +117,9 @@ void PlaylistListModel::AddRowItem(QStandardItem *item, const QString &parent_pa
         AddRowItem(child_item, parent_path);
       }
       break;
+
+    default:
+      break;
   }
 
 }
@@ -139,6 +142,9 @@ void PlaylistListModel::RowsAboutToBeRemoved(const QModelIndex &parent, const in
 
       case Type_Folder:
         break;
+
+      default:
+        break;
     }
   }
 
@@ -228,6 +234,9 @@ bool PlaylistListModel::setData(const QModelIndex &idx, const QVariant &value, i
       // Walk all the children and modify their paths.
       UpdatePathsRecursive(idx);
       break;
+
+    default:
+      break;
   }
 
   return true;