comp.lang.smalltalk Google Group

Re: Extending protocol of Object

kosch...@gmail.com (Tom) — Sun, 22 Nov 2009 23:41:35 UT

More efficient perhaps, but not object-oriented and not as efficient
as avoiding the test entirely. This is the sort of technique that
leads to case statements and other atrocities, making code harder to
maintain and extend. I can't think how much time I've spent tearing
out #isXXXX methods to create direct program flow. If your collection

Re: Extending protocol of Object

jtzec...@yahoo.com (jtzecher) — Sun, 22 Nov 2009 18:11:22 UT

One way that I have found it useful to extend Object is to teach it to
return a boolean to indicate whether it is a particular type of domain
object. For example, let's say you have a class called Customer and
you want to be able to query whether the domain object you have passed
to you as some argument or another is a Customer or not.

Re: What Killed Smalltalk?

gstep...@googlemail.com (Guido Stepken) — Sun, 22 Nov 2009 10:30:50 UT

Looking back, IMHO Smalltalk - at that time - when the Windows 3.11 de
facto standard came up - Smalltalk at that time was so much advanced,
that a integration into 3.11 would have meant a step backwards at high
costs. So nobody saw a need to invest money into adopting to industry
standards.
Later on, industry asked for standards and compatibility. Managers began

Re: (VW7.6) Help on implementing a CairoGraphics printer context

trinderj...@dsl.pipex.com (johnt) — Sat, 21 Nov 2009 13:24:36 UT

To add host printing capabilities to VW using Cairo, create the
following subclasses and their methods.
______________________________ ______________________________ ______________________________ ________________
Win32Surface >> hostPrintJob: aHostPrintJobCairo
^Win32PrintingSurface hostPrintJob: aHostPrintJobCairo

Re: What Killed Smalltalk?

ca...@libertybasic.com (Carl Gundel) — Fri, 20 Nov 2009 14:36:58 UT

Are you kidding? This was 20 years ago. Have you ever used a
computer with an Intel 80486 processor (before the Pentium)? By
today's standards this was not a "super machine" but it would be
considered really slow. Perhaps 100 times slower at least than your
typical computer today. Even a $200 netbook would trounce the

Re: What Killed Smalltalk?

gstep...@googlemail.com (Guido Stepken) — Thu, 19 Nov 2009 22:34:33 UT

Carl Gundel schrieb:
But where can I buy that super machine again, how do you call it - 486/25?
And my dealer told me, that he ran out of those "16MBRAM" pieces ...
Damn!
Have fun, Guido Stepken

Re: What Killed Smalltalk?

t...@tcltalk.ath.cx (Shin) — Thu, 19 Nov 2009 18:56:43 UT

I think, what killed Smalltalk on desktops most, was the availability
of compiling OO systems with rapid GUI prototyping capabilities, like
Borland's Delphi. Smalltalk simply fall of the bandwagon in the early
90s.
Thomas

Re: learning smalltalk

joaot...@gmail.com (ofilha) — Thu, 19 Nov 2009 16:12:30 UT

On Nov 18, 10:37 pm, Benjamin L. Russell <DekuDekup...@Yahoo.com>
wrote:
Thank you all for all the suggestions.

Re: What Killed Smalltalk?

ca...@libertybasic.com (Carl Gundel) — Thu, 19 Nov 2009 15:23:10 UT

In the early 90's I built a system in Smalltalk/V 286 that managed
production in a circuitboard factory on a single 486/25 with only 16MB
RAM. This machine serviced a couple of dozen terminals and several
printers. It was an interactive system providing order quotes,
engineering of jobs, tracking of bill of materials, split orders,

Re: What do you want in Redline Smalltalk?

ca...@libertybasic.com (Carl Gundel) — Thu, 19 Nov 2009 15:14:47 UT

What sort of debugger do you envision?
-Carl Gundel
[link]
Easy Web Programming in BASIC

Re: NYCST - Return to Smalltalk

dm...@erols.com (dmacq@erols.com) — Thu, 19 Nov 2009 15:07:12 UT

+2!
Donald

Re: learning smalltalk

dekudekup...@yahoo.com (Benjamin L. Russell) — Thu, 19 Nov 2009 06:37:07 UT

On Wed, 18 Nov 2009 09:29:56 -0800 (PST), ofilha <joaot...@gmail.com>
wrote:
One option is to try out Squeak [1] (see [link]).
Squeak provides an attractive, easy-to-use GUI environment for
Smalltalk.
For a tutorial, I would recommend either _Squeak: Learn Programming
with Robots_ [2], by Stephane Ducasse (see

Re: learning smalltalk

jaro...@gmail.com (jarober) — Wed, 18 Nov 2009 18:45:09 UT

Well, you can download VisualWorks or ObjectStudio (free for non-
commercial use):
[link]
And then check out the tutorials and screencasts:
[link]
[link]
You can subscribe to the screencasts in iTunes, and have a new one

learning smalltalk

joaot...@gmail.com (ofilha) — Wed, 18 Nov 2009 17:29:56 UT

Hi all,
I am interested in learning smalltalk just for fun. I was wondering
where i can get a good tutorial on the subject and a compiler that i
can get for free to learn smalltalk.
I also am wondering where is smalltalk's greatest strenght, in terms
of applications, i.e. gui,console,web etc...
thanks

Re: NYCST - Return to Smalltalk

l...@keystone-software.com (Louis LaBrunda) — Wed, 18 Nov 2009 14:18:09 UT

+1!
Lou
------------------------------ -----------------------------
Louis LaBrunda
Keystone Software Corp.
SkypeMe callto://PhotonDemon
mailto:L...@Keystone-Software. com [link]