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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
* Copyright (C) 2018 David Shah <dave@ds0.me>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef COMMON_PYBINDINGS_H
#define COMMON_PYBINDINGS_H
#include "pycontainers.h"
#include <Python.h>
#include <boost/python.hpp>
#include <boost/python/suite/indexing/map_indexing_suite.hpp>
#include <boost/python/suite/indexing/vector_indexing_suite.hpp>
#include <stdexcept>
#include <utility>
using namespace boost::python;
/*
A wrapper to enable custom type/ID to/from string conversions
*/
template <typename T> struct string_wrapper
{
template <typename F> struct from_pystring_converter
{
from_pystring_converter()
{
converter::registry::push_back(&convertible, &construct,
boost::python::type_id<T>());
};
static void *convertible(PyObject *object)
{
return PyUnicode_Check(object) ? object : 0;
}
static void construct(PyObject *object,
converter::rvalue_from_python_stage1_data *data)
{
const wchar_t *value = PyUnicode_AsUnicode(object);
const std::wstring value_ws(value);
if (value == 0)
throw_error_already_set();
void *storage =
((boost::python::converter::rvalue_from_python_storage<T> *)
data)
->storage.bytes;
new (storage) T(fn(std::string(value_ws.begin(), value_ws.end())));
data->convertible = storage;
}
static F fn;
};
template <typename F> struct to_str_wrapper
{
static F fn;
std::string str(T &x) { return fn(x); }
};
template <typename F1, typename F2>
static void wrap(const char *type_name, F1 to_str_fn, F2 from_str_fn)
{
from_pystring_converter<F2>::fn = from_str_fn;
from_pystring_converter<F2>();
to_str_wrapper<F1>::fn = to_str_fn;
class_<T>(type_name, no_init).def("__str__", to_str_wrapper<F1>::str);
};
};
std::string parse_python_exception();
template <typename Tn> void python_export_global(const char *name, Tn &x)
{
PyObject *m, *d;
m = PyImport_AddModule("__main__");
if (m == NULL)
return;
d = PyModule_GetDict(m);
try {
PyObject *p = incref(object(boost::ref(x)).ptr());
PyDict_SetItemString(d, name, p);
} catch (boost::python::error_already_set const &) {
// Parse and output the exception
std::string perror_str = parse_python_exception();
std::cout << "Error in Python: " << perror_str << std::endl;
std::terminate();
}
};
void init_python(const char *executable);
void deinit_python();
void execute_python_file(const char *python_file);
std::string parse_python_exception();
void arch_appendinittab();
#endif /* end of include guard: COMMON_PYBINDINGS_HH */
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