Re: Objective-C - Smalltalk bridge

[Nicolas Roard]

Le 21 mai 05 à 13:38, Marcel Weiher a écrit :
> With Objective-Smalltalk, you get that, but without a bridge or  
> proxies:
>
> marcel@tpol[marcel]cat > stexec.m
> #import <MPWTalk/MPWStCompiler.h>
>
> int main( int argc, char *argv[] ) {
>     id pool = [NSAutoreleasePool new];
>     id eval = [MPWStCompiler new];
>     id result = [eval evaluate:@"1+1."];
>     NSLog(@"result: %d",[result intValue]);
>     exit(0);
>     return 0;
> }
> marcel@tpol[marcel]cc -O -Wall -o stexec stexec.m -framework  
> MPWTalk -framework MPWFoundation -framework Foundation
> stexec.m: In function 'main':
> stexec.m:4: warning: unused variable 'pool'
> marcel@tpol[marcel]./stexec
> 2005-05-21 13:11:34.516 stexec[714] result: 2
> marcel@tpol[marcel]

very cool, indeed :-)

> What is Objective-Smalltalk?  In a nutshell:  a Smalltalk syntax  
> for the Objective-C runtime + language semantics.  So there are no  
> proxies and no two runtimes that have to talk to each other.  This  
> allows Objective-ST to be very compact, currently only around 1.5  
> KLOC, with several hundred of those being the unit tests.  That  
> includes a basic compiler/interpreter (compiler for the syntax,  
> 'interpreter' for running the returned Objective-C objects that  
> represent a script/method) ready for integration.  It is still  
> early days, but good enough to use in some of my shipping products.

is it possible to play with it already ? else, any release planned  
soon ? and what licence do you think you will use ?

> I am currently working on a (very primitive) little method browser:
(snip)

> Another part:  stsh, a smalltalk shell, both for interactive and  
> scripting use.

that's really interesting :-) -- now I want it :-D

> In the works:  a gcc front end, though that is *quite* a struggle.   
> Doing a JIT might be simpler... :-(

another question though, do you have a garbage collector ? Hm... I  
guess there's probably no GC, as in fact Objective-Smalltalk just
provides a different "syntax" to access the objc runtime ?

Ah, and how tied is it to the NeXT runtime (apparently, it runs on  
OSX, not on GNUstep) ?

Cheers,

--
Nicolas Roard
"Any sufficiently advanced technology is indistinguishable from magic."
 -Arthur C. Clarke