Re: Design Patterns and Collection Classes

Hi David,

Would someone be kind enough to produce ascii-text (or at least
non-binary) versions of the Strongtalk sources, since I don't have a
readily-handy new Windows machine, and the Strongtalk system is totally
unusable on older Windows versions? (I gave up after the hundredth blue
screen.)

I'm working on a new language, and want to incorporate the best ideas that
I can into my collection hierarchy. I've already ported and augmented,
trimmed, and modified Squeak's collection types, but without real access
to Strongtalk, there are some aspects of this that aren't apparent.

TIA,
~

On Fri, 30 Aug 2002, David Griswold wrote:

> "Richard A. O'Keefe" <ok@xxxxxxxxxxxxxx> wrote:
> > Helge.Horch@xxxxxxxxxxx (Helge Horch) provided LessPvt.1.cs.
>
> Cook's work on cleaner specification of the Collection classes was
> incorporated into the Strongtalk libraries.   The Extensible protocol I
> mentioned earlier is an example of that.  Since I had a type system at
> my disposal, I was also able to do a lot more formal verification of
> signature compatibility in the hierarchy.  Additionally, lots of
> semantic substitutability cleanups were made, that go beyond the typing
> issues.
>
> So if anyone is interested in what an actual implementation of such a
> cleaner heirarchy would look like, it is right there in Strongtalk (and
> is freely borrowable, as well).
>
> Cheers,
> Dave