Re: [pygccxml-development] Using pyplusplus with indexing suite

[Roman Y. <rom...@gm...>]

On 5/17/06, Allen Bierbaum <al...@vr...> wrote:
> Roman Yakovenko wrote:
>
> > On 5/17/06, Allen Bierbaum <al...@vr...> wrote:
> >
> >> I have a function class method that I am trying to wrap with pyplusplu=
s.
> >>
> >> The method is similar to:
> >>
> >> std::vector< boost::shared_ptr< ClassA > > MyClass::getData();
> >>
> >> I would like to use the indexing suite or something similar to make it
> >> possible to iterate over and use this list from python.  Is there any
> >> support for this directly in pyplusplus or can anyone tell me what I
> >> need to do custom to allow this?
> >
> >
> > There are 2 ways to solve the problem. I will not like both of them.
> >
> > 1. Add custom code to class A:
> >
> > class_<std::vector< boost::shared_ptr<A> > >("AVec")
> >        .def(vector_indexing_suite<std::vector< std::vector<
> > boost::shared_ptr<A> > > >())
> >    ;
> >
> > And then from Python create a reference from global scope to it:
> >
> > AVec =3D A.AVec
> >
> > http://boost.org/libs/python/doc/v2/indexing.html
>
> I will have to try this one.  I have to admit the code sample above
> doesn't make sense yet, but I will re-read the indexing documentation
> and see if I can figure it out.
>
> >
> > 2. I will accept the patch. Now when I think about it, it should be
> > fairly simple.
> >    1.  There is a need for vector_indexing_suite_ code creator.
> >    2.  After this small modification should be done to types_database_t=
.
> >         It should recognize, that data type is vector or map.
> >         pygccxml.declarations.templates parser will do the job easier
> >    3.  Modify module_creator.creator_t class
> >
> > I am running out of time, otherwise I would implement the patch by
> > myself.
> > I think it should take like 3-5 hours.
> >
> Unfortunately I am not skilled enough to implement this.  It is one
> thing to make patches that change interfaces slightly or fix small parts
> of code, it is an entirely different thing to understand the full code
> base and add a large new capability. :)
>
> I wish I had time to learn the code that well, but I do not right now.
> Sorry. :(

You don't have to be sorry. Your comments keeps me in focus. I will impleme=
nt
this feature in next release.

> Thanks for your help.


> -Allen
>


--=20
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/