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#pragma once
#include <vector>
// These headers are necessary for cross-python compilation.
// Python3 does not have PyString_* methods. One should use PyBytes_* instead.
// bytesobject.h contains a mapping from PyBytes_* to PyString_*.
// See https://docs.python.org/2/howto/cporting.html for more.
#include "Python.h"
#include "bytesobject.h"
#include <boost/python.hpp>
#include <boost/python/suite/indexing/map_indexing_suite.hpp>
namespace
{
using namespace boost::python;
// Converts a vector<uint8_t> to Python2 str or Python3 bytes.
struct vector_uint8t_to_str
{
static PyObject * convert(std::vector<uint8_t> const & v)
{
auto bytes = PyBytes_FromStringAndSize(
reinterpret_cast<char const *>(v.data()),
v.size());
Py_INCREF(bytes);
return bytes;
}
};
// Converts a vector<uint8_t> from Python2 str or Python3 bytes.
struct vector_uint8t_from_python_str
{
vector_uint8t_from_python_str()
{
converter::registry::push_back(&convertible, &construct, type_id<std::vector<uint8_t>>());
}
static void * convertible(PyObject * obj_ptr)
{
if (!PyBytes_Check(obj_ptr))
return nullptr;
return obj_ptr;
}
static void construct(PyObject * obj_ptr, converter::rvalue_from_python_stage1_data * data)
{
const char * value = PyBytes_AsString(obj_ptr);
if (value == nullptr)
throw_error_already_set();
void * storage =
((converter::rvalue_from_python_storage<std::vector<uint8_t>> *)data)->storage.bytes;
new (storage) std::vector<uint8_t>(value, value + PyBytes_Size(obj_ptr));
data->convertible = storage;
}
};
} // namespace
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