Re: [pygccxml-development] Help with single header setup

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

On Thu, Jul 30, 2009 at 6:53 PM, Brendan
Duncan<Bre...@di...> wrote:
> I've been testing Py++ lately as an alternative to swig.  Some of the
> libraries I'm trying to wrap cause Py++/PyGCCXML to consume well over
> 6GB of RAM, and take quite a while to process (considerably longer than
> swig).

Interesting. I would like to investigate the problem. Is this an open
source project?

> I read the section of documentation that said putting all of the headers
> into a single header is the way to go.  This is where I'm stuck, and I
> don't have a lot of time to try and figure it out.
>
> Here's a greatly simplified version of what I'm currently doing.  Can
> anyone tell me what I need to be doing instead?
>
> Foo.h:
> class Foo {
> public:
>    Foo(void) { }
>    void test(void) { }
> };
>
> headers.h:
> #include "Foo.h"
>
> generate.py:
> from pyplusplus import module_builder
> GCCXML = '/path/to/gccxml'
> mb = module_builder.module_builder_t(files=['headers.h'],
> gccxml_path=GCCXML)
> mb.build_code_creator(module_name='_test')
> targets = mb.split_module('build')
>
> When I run generate.py, it produces _test.main.cpp:
> #include "boost/python.hpp"
> #include "headers.h"
> namespace bp = boost::python;
> BOOST_PYTHON_MODULE(_test){
> }
>
>
> If instead of headers.h I pass Foo.h to module_builder_t, then it builds
> fine, except this is the case where in my large project it consumes far
> too much memory and takes too long.  I tried having the pygccxml parser
> generate an xml for headers.h and passing that to module_builder, but
> that didn't work either.  Looking at the xml file I do see the Foo
> declarations though, so it's just module_builder that's ignoring them.
>
> Any ideas would be greatly appreciated.  I'm using the SVN version, on
> Linux (if that matters).

The following documents should help you:
* http://language-binding.net/pyplusplus/documentation/tutorials/module_builder/module_builder.html
* http://language-binding.net/pygccxml/query_interface.html

In general you can write:

mb.class_( 'Foo' ).include()

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