Sample code for https://stackoverflow.com/questions/27336390/can-i-extract-common-code-from-switch-cases-with-only-resharper-transformation

switch-after.cs

class Program
{
    private static void Main(string[] args)
    {
        IOperation operation;
        switch (args[0])
        {
            case "foo":
                {
                    operation = new FooOperation();
                    break;
                }
            case "bar":
                {
                    operation = new BarOperation();
                    break;
                }
            case "baz":
                {
                    operation = new BazOperation();
                    break;
                }
            default:
                throw new System.Exception();
        }
        operation.Do();
    }
}

class BazOperation : IOperation
{
    public void Do()
    {
    }
}

class FooOperation : IOperation
{
    public void Do()
    {
    }
}

class BarOperation : IOperation
{
    public void Do()
    {
    }
}

interface IOperation
{
    void Do();
}