Hmmmm I guess it depends on what we consider code-switching. :P If you consider code-switching to be formal vs casual, then yeah I'm probably using code-switching entirely in the wrong sense.

Though would it be considered more than one dialect, if there is formal, semi-formal and casual? Which there is, in Singlish, where it goes all the way to very casual, and then very close to approaching standard English. So it could be just two languages/dialects, but with percentage allowed?