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