Smalltalk Interface to Objective-C (Product Announcement)

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4 total messages Started by Christopher A Lozinski Wed, 11 Nov 1992 05:05

#186

Author: Christopher A Lozinski
Date: Wed, 11 Nov 1992 05:05

36 lines
2096 bytes

PRODUCT ANNOUNCEMENT

     The Smalltalk Interface to Objective-C makes Objective-C
objects look like Smalltalk objects.  The interface is based on the
simple concept that every remote Objective-C class and instance can
be represented by a local Smalltalk proxy object.  Messages sent to a
local Smalltalk proxy object are transparently forwarded to the
actual Objective-C object it represents, and the results are returned
as Smalltalk objects.  To the Smalltalk developer, there are just
Smalltalk messages being sent to Smalltalk objects.  To the
Objective-C developer, there are just Objective-C messages being sent
to Objective-C objects.  The net result is that the two languages are
very smoothly integrated.  

     No longer do developers have to choose between using Objective-C
or Smalltalk; they can use both languages together, each where it is
best suited.  Prototypes can be quickly implemented in Smalltalk, and
performance-critical code can be developed in Objective-C. 
Alternatively, portable applications engines can be written in
Objective-C, moved to the platform of choice, and integrated with a
new interface quickly developed in Smalltalk.  Existing Smalltalk
interface building tools can be used, while existing Objective-C
libraries can be reused.

     The product is currently shipping under Microsoft Windows.  It
comes bundled with the Borland Extensions to Objective-C.  For
further information please send your postal address, telephone
number, and preferred platform to:

Berkeley Productivity Group
35032 Maidstone Court
Newark, CA 94560, USA
Tel:(510) 795-6086  
Fax:(510) 795-8077
CompuServe:71201,1175  
Internet:lozinski@cup.portal.com

Re: Smalltalk Interface to Objective-C (Product Announcement)

#187

Author: Kresten Krab Thorup
Date: Wed, 11 Nov 1992 16:42

16 lines
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>>>>> On Tue, 10 Nov 92 21:05:16 PST, lozinski@cup.portal.com (Christopher A Lozinski) said:
Chris>      The product is currently shipping under Microsoft Windows.  It
Chris> comes bundled with the Borland Extensions to Objective-C.  For
Chris> further information please send your postal address, telephone
Chris> number, and preferred platform to:

Is Borland C 3.1 shipped with an obj-c extension, really?  

/Kresten
--
Kresten Krab Thorup, DAT3, D2-117 |       /   | E-mail : krab@iesd.auc.dk
Institute of Electronic Systems   |   ,-'/(   | S-mail : Sigrid Undsetsvej 234A
Aalborg University                |  /  |  \  |          9220 Aalborg \O
Fr. Bajers vej 7, 9220 Aalb. \O   |  A  U  C  |          98 15 18 44
-------------------------------------------------------------------------------
           Member of the LPF - The League for Programming Freedom

Re: Smalltalk Interface to Objective-C (Product Announcement)

#190

Author: Jim Howe
Date: Wed, 11 Nov 1992 20:18

24 lines
1643 bytes

In article <69283@cup.portal.com>, lozinski@cup.portal.com (Christopher A Lozinski) writes:
|> PRODUCT ANNOUNCEMENT
|> 
|>      The Smalltalk Interface to Objective-C makes Objective-C
|> objects look like Smalltalk objects.  The interface is based on the
|> simple concept that every remote Objective-C class and instance can
|> be represented by a local Smalltalk proxy object.  Messages sent to a
|> local Smalltalk proxy object are transparently forwarded to the
|> actual Objective-C object it represents, and the results are returned
|> as Smalltalk objects.  To the Smalltalk developer, there are just
|> Smalltalk messages being sent to Smalltalk objects.  To the
|> Objective-C developer, there are just Objective-C messages being sent
|> to Objective-C objects.  The net result is that the two languages are
|> very smoothly integrated.  
|> 

Is communication one-way or two-way?  For example, can a Smalltalk
method call an Objective-C method which in turn calls a Smalltalk
method?


James W. Howe                  internet: jwh@citi.umich.edu
University of Michigan             uucp: uunet!mailrus!citi.umich.edu!jwh
Ann Arbor, MI   48103-4943

Re: Smalltalk Interface to Objective-C (Product Announcement)

#193

Author: Christopher A Lozinski
Date: Mon, 16 Nov 1992 01:25

13 lines
970 bytes

The following question was asked about the Smalltalk Interface 
to Objective-C
>Is communication one-way or two-way?  For example, can a Smalltalk
>method call an Objective-C method which in turn calls a Smalltalk
>method?

Yes, two way communication is supported.  Smalltalk already allows
callbacks from Objective-C.  BPG is working to build on that service
to allow event notification where Smalltalk clients will be notified
about significant events in the Objective-C server.  


Christopher Lozinski

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