CLion 2023.2 Help

Refactoring

Refactoring is a process of improving your source code without creating a new functionality. Refactoring helps you keep your code solid , dry, and easy to maintain.

Invoke refactoring

  1. Select an item to refactor. You can select a file/folder in the Project tool window or expression/symbol in the editor.

  2. Press Control+Alt+Shift+T to open the list of refactorings:

    Refactor This popup

Undo refactoring

  • Press Control+Z.

Preview changes

For some refactorings, you can preview changes before applying them.

  1. Click Preview in the Refactoring Preview dialog:

    Refactoring dialog

  2. Check the changes that are going to be made in the Find tool window. You can exclude Delete or remove Control+X changes that you consider unnecessary.

    Refactoring Preview window

  3. Click Do Refactor to proceed with the changes.

Resolve conflicts

When CLion encounters problems with your refactoring, it opens a dialog with the list of conflicts and their brief descriptions.

Cl refactoring conflicts dialog

  • Click Continue to ignore the problem and proceed to open the preview in the Find tool window.

  • Click Show Conflicts in View to open the conflict entries in the Find tool window and deal with them further.

    For example, you can try to exclude an entry from refactoring by pressing Delete or click Cancel and return to the editor.

    Cl refactoring conflicts toolwindow

    Configure refactoring settings

    1. In the Settings dialog (Control+Alt+S), select Editor | Code Editing.

    2. On the Code Editing page, in the Refactorings section, adjust the refactoring options and click OK.

    Safe Delete

    Alt+Delete

    Makes sure that you do not delete files that are referenced in your source code.

    Safe delete

    Copy/Move

    F5 / F6

    Copies/Moves an element.

    Move and Copy

    Extract Method

    Control+Alt+M

    These refactoring actions help you reduce the code duplication.

    Extract function

    Extract Constant

    Control+Alt+C

    Declares a new constant and initializes it with the selected expression.

    Extract constant

    Extract Parameter

    Control+Alt+P

    Adds a new parameter to a method declaration and updates the Function calls accordingly.

    Extract parameter

    Introduce Variable

    Control+Alt+V

    Declares a new variable and initializes it with the selected expression.

    Extract/Introduce variable

    Rename

    Shift+F6

    Renames an element.

    Rename

    Inline

    Control+Alt+N

    Inlines an element. Acts as the opposite of extracting.

    Inline

    Change signature

    Control+F6

    Changes the call signature of a method or class.

    Change signature

    Last modified: 14 September 2023
    Doxygen documentation Rename