Re: [DotGNU]Swig and C# (was: Strategy for dealing with C++ )

[James Michael DuPont]

--- Gopal V <address@hidden> wrote:
> If memory serves me right, James Michael DuPont wrote:
> > > I have used Swig for python and found it grossly insufficent for
> my
> > > work ... (easy, but not sufficent) ... I finally wrote my own
> > > wrappers
> > > in C for Python ... which is a lot more flexible than SWIG 
> > 
> > But did you report the problems or look how the swig generators
> could
> > be modified?
> 
> My work was far too specialized to modify something so general like
> swig.
> Swig is useful for wrapping C functions , it is not useful for
> building
> Python wrappers . 

OK, but for calling C from python?

> Especially when I need a custom marshalling scheme.
> The
> Swig is sort of hard coded for a standard wrapping code ... It does
> not 
> handle mapping VarArg python methods onto vararg C methods ...

Ok, makes sense.

> (AFAIK).
> 
>       case 'i':
>               params[count].int32Value\
>                       
> =(int)(PyInt_AsLong(PyTuple_GetItem(args,count+prefix)));
>               count++;
>               break;
>       case 'c':
>               params[count].int32Value=\
>                       
> (PyString_AsString(PyTuple_GetItem(args,count+prefix))[0]);
>               count++;
>               break;
> 
> Swig is a "Simple Wrapper Interface Generator" IIRC , I'd rather
> write my
> own generator than hack swig to handle this very special case ... 
> 
> The quoted code is from my Python wrapper shell for C# , And after
> all I 
> need to inherit Objects from C# into Python which cannot be done with
> Swig
> at all ...


OK gopal. I see your point. I am looking at the Libxml right now, but
it seems that the xsharp is cleaner code, he does not use any local
functions. 

I am looking into this, I hope to have some examples for librdf soon, 
with a modified swig to do the job.

mike

=====
James Michael DuPont
http://introspector.sourceforge.net/

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