Re: [Rubycocoa-talk] bridging between ruby and objective-C

[Jason F. <ja...@th...>]

You could, if so inclined, provide a declaration of the class in a  
header and no declaration, which should let you define a (pointer)  
variable of that type.  That means you'd have some duplicate code- 
you'd have to decide if the extra maintenance is worth the gain.

Jason


On Feb 10, 2009, at 4:19 AM, Allison Newman <dem...@ma...> wrote:

> Just to add to what Eloy has said, the problem is that Ruby classes  
> don't exist at compile time, they are created by the ruby compiler  
> at runtime, so the compiler can't know about them (with the possible  
> exception of the built-in classes; you'd have to ask Laurent about  
> that!).  So even for MacRuby, where Ruby classes ARE Objective-C  
> classes, you can't use static typing for Ruby objects.  You'll have  
> the compiler complaining about an unknown type, or some other  
> syntatic error, depending on where you try to use the definition.
>
> One way to think about this is that you don't have .h files in  
> Ruby.  These files exist for precisely this reason in the various  
> flavours of C.
>
> Hope that helps,
>
> Alli
>
> On Tuesday, February 10, 2009, at 11:11AM, "Eloy Duran" <elo...@gm... 
> > wrote:
>> Hi,
>>
>> Looking at your blog post it seems you are talking about MacRuby,
>> which is a different project then RubyCocoa to which you have posted
>> this.
>>
>> Having said that, no I don't think it's possible.
>>
>> - Eloy
>>
>> On 10 feb 2009, at 09:03, S. Woodside wrote:
>>
>>> I want to call back and forth between Ruby and ObjC objects, I've
>>> figured it out in a basic way and posted it here:
>>>
>>> http://simonwoodside.com/weblog/2009/2/10/wondeful_joy_mix_ruby_and/
>>>
>>> However, it would be nice if on the ObjC side I could actually  
>>> declare
>>> objects of a type defined on the Ruby side instead of using "id"...
>>> and have the compiler, or at least just the linker understand that.
>>> Does anyone know if it's possible?
>>>
>>> --simon
>>>
>>>
>>> PS sorry for cross-posting with the google group, but i realized  
>>> that
>>> it doesn't seem to be active.
>>>
>>> --- 
>>> --- 
>>> --- 
>>> --- 
>>> ------------------------------------------------------------------
>>> Create and Deploy Rich Internet Apps outside the browser with
>>> Adobe(R)AIR(TM)
>>> software. With Adobe AIR, Ajax developers can use existing skills
>>> and code to
>>> build responsive, highly engaging applications that combine the
>>> power of local
>>> resources and data with the reach of the web. Download the Adobe AIR
>>> SDK and
>>> Ajax docs to start building applications today-http://p.sf.net/sfu/ 
>>> adobe-com
>>> _______________________________________________
>>> Rubycocoa-talk mailing list
>>> Rub...@li...
>>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>>
>> --- 
>> --- 
>> --- 
>> ---------------------------------------------------------------------
>> Create and Deploy Rich Internet Apps outside the browser with  
>> Adobe(R)AIR(TM)
>> software. With Adobe AIR, Ajax developers can use existing skills  
>> and code to
>> build responsive, highly engaging applications that combine the  
>> power of local
>> resources and data with the reach of the web. Download the Adobe  
>> AIR SDK and
>> Ajax docs to start building applications today-http://p.sf.net/sfu/ 
>> adobe-com
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>>
>
> --- 
> --- 
> --- 
> ---------------------------------------------------------------------
> Create and Deploy Rich Internet Apps outside the browser with  
> Adobe(R)AIR(TM)
> software. With Adobe AIR, Ajax developers can use existing skills  
> and code to
> build responsive, highly engaging applications that combine the  
> power of local
> resources and data with the reach of the web. Download the Adobe AIR  
> SDK and
> Ajax docs to start building applications today-http://p.sf.net/sfu/ 
> adobe-com
> _______________________________________________
> Rubycocoa-talk mailing list
> Rub...@li...
> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk