Re: [Chicken-users] operations

[Kon Lovett]

On Jul 16, 2007, at 9:55 AM, Robin Lee Powell wrote:

> On Mon, Jul 16, 2007 at 12:12:27PM +0200, felix winkelmann wrote:
> > A quick and dirty implementation of T's
> > (http://mumble.net/~jar/tproject/) object system
>
> Wow.  What an amazing mess, including that the "T Revival" page
> linked to near the top has been taken down.
>
> Before I kill myself trying to figure out WTH that page is about
> just because Felix thinks it's cool (which is sufficient reason, for
> the most part, but still) can anyone give me a precis of why this is
> interesting?

Not sure "cool" is the word, it is of historical interest. T was  
Yale's implementation of Scheme, sort-of. It was a much larger  
language than what Scheme was at that time. A "real-world"  
implementation of Scheme.

The T object system is a clear extension of the "generic" functions  
found in Scheme, like '+' for example. It is much more lightweight  
than CLOS generic functions. Single-dispatch only, but that fits with  
the usual semantics of Scheme functions - they usually deal with  
parameters of the same "class", like numbers.

In the context of Chicken see it as Yet Another Object System.

I doubt T will have a "revival." In practice it has been eclipsed by  
MzScheme, Chez Scheme, Chicken, etc. All of which provide a  
programming system larger than basic Scheme. (And it had  
idiosyncrasies of its' own. If you can find a copy of "The T  
Programming Language" it is worth a look.)

Best Wishes,
Kon

> -Robin
>
> --
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