On 29.04.2010 21:06, Roman Yakovenko wrote:
...
First of all the error you see. In your case, py++ compiles separately
both files and then it tries to merge their declarations tree.
Obviously it fails. I will try to find time and fix this bug.
The work around is pretty simple: create a helper file, which will
include both files and path it to py++. It should resolve this
problem.
Yes, that helped :)
Unfortunately, py++ doesn't support/generate code for boost::tuple, so
some additional work from you is needed:
...
And you should be fine.
All that worked, I was able to create python module.
I created a test and verified that the proposed solution actually
works. I will try to add "boost::tuple" support to py++ next week.
boost::tuple automatic support in py++ would be a really nice feature :)
Let me know, if you need more help with this issue.
Problem... as always when there's not enough knowledge:
I got the warning:
WARNING: boost::tuples::null_type [struct]
> execution error W1040: The declaration is unexposed, but there are
other declarations, which refer to it. This could cause "no to_python
converter found" run time error. Declarations:
boost::tuples::tuple<JobIdWrapper::RESULT,
> JobIdWrapper, std::string, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type,
boost::tuples::null_type>::tuple(JobIdWrapper::RESULT
> const & t0, JobIdWrapper const & t1,
std::basic_string<char,std::char_traits<char>,std::allocator<char> >
const & t2, boost::tuples::null_type const & t3) [constructor]
boost::tuples::tuple<JobIdWrapper::RESULT, JobIdWrapper,
> std::string, boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type>::tuple(JobIdWrapper::RESULT const & t0,
Compilation went successfully, but I can't import the module. I'm
getting an error:
python:
/home/macieks/boost/boost_1_42_0/libs/python/src/converter/registry.cpp:212:
void boost::python::converter::registry::insert(PyObject* (*)(const
void*), boost::python::type_info, const PyTypeObject* (*)()): Assertion
`slot->m_to_python == 0' failed.
Aborted
To fix the warning I included boost::python::null_type:
mb.class_( 'null_type' ).include()
the warning disapeared but the module still couldn't be loaded.
Best regards
--
Maciek Sitarz
#ifndef __ALL_H__
#define __ALL_H__
#include "tuples.hpp"
#include "problem.h"
#endif // __ALL_H__
import os
import sys
from pyplusplus import module_builder
mb = module_builder.module_builder_t(
files=['all.h'],
include_paths=[
os.getcwd()
, "/usr/include"
, "/usr/include/python2.4"
, "/home/macieks/boost/boost_1_42_0"
],
indexing_suite_version=2
)
mb.class_( 'JobIdWrapper' ).include()
mb.class_( 'null_type' ).include()
mb.class_( 'tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>' ).include()
mb.class_( 'map<std::string, boost::tuples::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, std::less<std::string>, std::allocator<std::pair<std::string const, boost::tuples::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > > >' ).include()
mb.add_registration_code( 'boost::python::register_tuple< TupleJobId >();' );
#mb.print_declarations()
mb.build_code_creator( module_name='problem' )
mb.code_creator.add_include( 'tuples.hpp' )
mb.code_creator.user_defined_directories.append( os.path.abspath('.') )
mb.write_module( os.path.join( os.path.abspath('.'), 'generated.cpp' ) )
#ifndef __TEST_H__
#define __TEST_H__
#include <map>
#include <utility>
#include <string>
#include <boost/tuple/tuple.hpp>
class JobIdWrapper {
public:
JobIdWrapper() : a(0) { }
JobIdWrapper(int i) : a(i) { }
int a;
enum RESULT {
OK,
ERROR
};
};
typedef boost::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string> TupleJobId;
typedef std::map< std::string, TupleJobId > RegisterArrayResult;
void fun( RegisterArrayResult *regArray) {
boost::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string> tuple1(JobIdWrapper::OK, JobIdWrapper(1), "1");
boost::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string> tuple2(JobIdWrapper::ERROR, JobIdWrapper(2), "2");
regArray->insert(
std::pair<std::string, boost::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string> >( "one", tuple1 )
);
regArray->insert(
std::pair<std::string, boost::tuple<JobIdWrapper::RESULT, JobIdWrapper, std::string> >( "two", tuple2 )
);
}
namespace python_problem {
namespace details {
inline void instantiate() {
sizeof( JobIdWrapper );
sizeof( RegisterArrayResult );
JobIdWrapper c( 0 );
RegisterArrayResult reg();
}
}
}
int main( void ){
JobIdWrapper a( 0 );
RegisterArrayResult r();
}
#endif // __TEST_H__
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