Change signature
The Change Signature refactoring combines several different modifications that can be applied to a function, method, or a method specification. You can use this refactoring for the following purposes:
To change the method/function name.
To add new parameters and remove the existing ones.
To assign default values to new non-variadic parameters.
To reorder parameters.
When changing a method/function signature, GoLand searches for all usages of the method/function and updates all the calls, implementations, and override replacements of the method/function that can be safely modified to reflect the change. When you refactor a method specification, you will see a notification dialog where you can select to update all implementations as well.
Change a method or function signature
Place a caret on a method/function name that you want to refactor.
Press Ctrl+F6. Alternatively, select from the main menu or from the context menu.
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In the Change Signature dialog, make the necessary changes to the method/function signature depending on your needs:
Change the method/function name. To change the name, edit the text in the Name field.
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Manage the method/function parameters. To configure the parameters, use the table and the buttons in the Parameters area:
To add a new parameter, click
and specify the properties of the new parameter in the corresponding table row. To remove a parameter, select any row and click
. To reorder the parameters, use the Up (
) and Down (
) icons. To change the name or the default value of a parameter, make the necessary updates in the table of parameters (in the fields Name and Default value respectively).
Click Refactor.
Add a return value
Click the function name and press Ctrl+F6. Alternatively, select from the main menu or from the context menu.
In the Change Signature dialog, click the Result parameters tab and click the Add icon (
).In the Type text field, specify the return value.
Click Refactor.
