Change signature

Position the caret at the name of the method/function that you want to refactor.

Press ⌃ F6. Alternatively, select Refactor | Change Signature from the main or context menu. The Change Signature dialog opens.

In the Change Signature dialog, make necessary changes to the method/function signature depending on your needs:

For Objective-C: change the type of a callable procedure. In the Callable Type filed, select Function, Method, or Block.
For Swift: change the visibility type. In the Visibility field, select public, internal, private, or another type.
Change the method/function name. To change the name, edit the text in the Name field.
Change the method/function return type by editing the contents of the Return type field.
Manage the method/function parameters. To configure the parameters, use the table and buttons in the Parameters area:
- To add a new parameter, click and specify the new parameter's properties in the corresponding table row.
  tip
  Auto-completion is available when typing the parameter type.
- To remove a parameter, select any row and click .
- To reorder the parameters, click and .