rubycocoa-talk

[Rubycocoa-talk] gnustep port

[ibotty <rub...@ib...>]

hi devels,

i am very interested in a port of RubyCocoa to gnustep.

i have started and even got it to compile.

i think everything of RubyCocoa should work on gnu (and *BSD) systems, except 
static VALUE
osx_mf_objc_symbol_to_obj(VALUE mdl, VALUE const_name, VALUE const_ty
pe)

there is no dyld on linux/*BSD so, i can not easily port this function.
so what does this function do?
and has one of you an idea on how to implement this on linux/*bsd?

~ibotty

Re: [Rubycocoa-talk] gnustep port

[Chris T. <ch...@m-...>]

Hi ibotty,

What dyld function does osx_mf_objc_symbol_to_obj call?

(Also, have you taken a look at RIGS?)

Chris

On Thursday, June 12, 2003, at 04:34  AM, ibotty wrote:

> hi devels,
>
> i am very interested in a port of RubyCocoa to gnustep.
>
> i have started and even got it to compile.
>
> i think everything of RubyCocoa should work on gnu (and *BSD) systems, 
> except
> static VALUE
> osx_mf_objc_symbol_to_obj(VALUE mdl, VALUE const_name, VALUE const_ty
> pe)
>
> there is no dyld on linux/*BSD so, i can not easily port this function.
> so what does this function do?
> and has one of you an idea on how to implement this on linux/*bsd?
>
> ~ibotty
>
>
>
>
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Re: [Rubycocoa-talk] gnustep port

[ibotty <rub...@ib...>]

thx for helping me,
> What dyld function does osx_mf_objc_symbol_to_obj call?

it is:
sym = NSLookupAndBindSymbol( blah )
addr = NSAddressOfSymbol( sym );

i can now (vaguely) see what it will/should do. but i cannot see, how i may 
map this to the gnu runtime...

> (Also, have you taken a look at RIGS?)

yep, i did, even used it ;)
unfortunately, it cannot deal with nib/gorm files.
additionally, you cannot program the main app in obj-c and one plugin in 
ruby...
it simply cannot (correctly) propagate a ruby-method to obj-c. 

~ibotty

Re: [Rubycocoa-talk] gnustep port

[Chris T. <ch...@m-...>]

On Monday, June 16, 2003, at 06:14  AM, ibotty wrote:

> thx for helping me,
>> What dyld function does osx_mf_objc_symbol_to_obj call?
>
> it is:
> sym = NSLookupAndBindSymbol( blah )
> addr = NSAddressOfSymbol( sym );
>
> i can now (vaguely) see what it will/should do. but i cannot see, how 
> i may
> map this to the gnu runtime...

I'm not an expert on "standard" *nix dynamic runtime stuff, but I think 
this maps to:

void * executable_handle = dlopen("path/to/executable");
void * symbol_address = dlsym(executable_handle, blah);
dlclose(executable_handle);

on most GNUstep-supported platforms. man dlopen may be a good starting 
point.

>> (Also, have you taken a look at RIGS?)
>
> yep, i did, even used it ;)
> unfortunately, it cannot deal with nib/gorm files.
> additionally, you cannot program the main app in obj-c and one plugin 
> in
> ruby...
> it simply cannot (correctly) propagate a ruby-method to obj-c.

Ah, I didn't know about those limitations.

Chris

Re: [Rubycocoa-talk] gnustep port

[ibotty <rub...@ib...>]

> I'm not an expert on "standard" *nix dynamic runtime stuff, but I think
> this maps to:
>
> void * executable_handle = dlopen("path/to/executable");
> void * symbol_address = dlsym(executable_handle, blah);
> dlclose(executable_handle);
>
> on most GNUstep-supported platforms. man dlopen may be a good starting
> point.

this is the pointer, i need. thx again.

btw: are there any objections, if the gnustep port is merged with mainline 
rubycocoa

~ibotty