On Nov 20, 2007 8:23 AM, David Jones <email@example.com
> On 20 Nov 2007, at 09:40, Miles Bader wrote:
> > I suppose an important adjunct to a Lua compiler would be a way for
> > program writers to add annotations declaring their intent about such
> > things (e.g. common-lisp's "declare" special-form).
> I have thought so for a long time (in fact I think every language
> should have something similar to Common Lisp's "declare"), and
> occasionally I try and think of Lua-like ways of adding it to the
> core language. To me it seems like the best candidate for a new
> language feature. A declaration feature that is extensible in a way
> that language processors (like the PUC-Rio compiler, documentation
> tools, test harnesses) can invent declarations for their own use, but
> can still tell when they come across a mandatory declaration that
> they don't understand (so that they can bail). Like critical chunks
> in PNG.