Re: Attempting to Create Obj-C Gecko Framework

[Brian Powell]

On Monday, April 9, 2001, at 07:28 PM, Pascal Bourguignon wrote:
> Writting  C functions could  do the  job, but  this would  probably be
> quite labor intensive.
>
> A better way would be, IMHO, to take advantage of the dynamical aspect
> of Objective-C.   Have a look at objc/objc.h  and objc/objc-api.h. The
> Objective-C machinery  is published  as C functions  that you  can use
> directly  from C++. You  could write  a single  C++ class  "ObjC" that
> would allow  you to instanciate  Objective-C objects and to  send them
> Objective-C messages. Minimally, something like this:

Pascal, thank you for the suggestion.  I will look into this and make 
some small demos.  The only question regarding that is how would the 
ObjC make a corresponding call to C++?  That is why I believed that a C 
wrapper may be the requirement.

> Note however  that the Objective-C  runtimes have some  differences in
> GNUstep and MacOSX,  which means that two versions  of this ObjC class
> (or two concrete subclasses) would have to be written

No problem, I would tend to believe that once I've figured out how to do 
it, it shouldn't be TOO terribly different between the two (famous last 
words).  Isn't Apple contributing their gcc version of objc back to egcs?

Thanks for the support!

--Brian