IronRuby.Builtins.RubyModule.Mutate C# (CSharp) Method

        private void Mutate() {
            Debug.Assert(!IsDummySingletonClass);
            if (IsFrozen) {
                throw RubyExceptions.CreateRuntimeError(String.Format("can't modify frozen {0}", IsClass ? "class" : "module"));
            }
        }