On Sun, 31 Oct 2004 13:47:06 -0400, <lex at cc.gatech.edu> wrote:

> I meant in Pascal or C.  In these languages, there is a single
> declaration that lists all the possibilities.  To add more possibilities
> you have to modify that declaration.

True. But necessary? (Maybe.<s>)

> These languages don't have
> subclasses, so it is not a big deal.  I wonder what C++ does for this,
> though?  Can a C++ subclass add items to an enumerated type its
> superclass uses?  I bet not -- figuring out what it would mean is a
> headache!

No, in both C++ and Object Pascal, the enumerated types are unchanged from  
their ancestral non-object forms.

> Chuck is a project to help people browse Smalltalk code.  Its browser
> lets you point to a variable and say "what is your type", among other
> things.  The type system of Chuck includes types like "#foo or #bar or
> #baz", ie lists of symbols.  And that's my answer to your second
> question: I think that lists of symbols would be the Squeak-equivalent
> of an enumerated type.
>
> Chuck is on SqueakMap, and has this home page:

'k. I'll have to check Chuck out.