Code inspection: Redundant 'case' label before default section

This inspection reports an enum case label in a switch section that already contains default: and therefore matches everything that reaches that section. The extra enum label is redundant because default already covers it.

                enum State
                {
                    Ready,
                    Done
                }
                class C
                {
                    void M(State state)
                    {
                        switch (state)
                        {
                            default:
                            case State.Ready:
                                break;
                        }
                    }
                }
            

                enum State
                {
                    Ready,
                    Done
                }
                class C
                {
                    void M(State state)
                    {
                        switch (state)
                        {
                            default:
                                break;
                        }
                    }
                }
            

This inspection is specific to enum switches where that section is already the catch-all branch.

13 April 2026