Question

Lets say I got the extension which does something with the enum and then just returns it.

public static T Do<T>(this Enum e) where T : struct
{
    // Do something.
    return // e? .. (T)e? .. or (T)(object)e? ;
}

So what should I return to let my code be successefully built and run with this example:

Roles role = Roles.Admin | Roles.Moderator;
role.Do<Roles>().SomethingElse().AndMore<Roles>().Etc<int>();

__

return (T)e;

http://pasteboard.s3.amazonaws.com/images/1349685696025173.png

__

return e;

http://pasteboard.s3.amazonaws.com/images/1349685753912110.png

__

return (T)(object)e;

Actually works, but does boxing and then unboxing.

Answer 1

    public static T Do<T>(this Enum e) where T : struct
    {
        return (T) Convert.ChangeType(e, typeof(T));
    }