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-rw-r--r--mpm/python/converters.hpp94
1 files changed, 0 insertions, 94 deletions
diff --git a/mpm/python/converters.hpp b/mpm/python/converters.hpp
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--- a/mpm/python/converters.hpp
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-//
-// Copyright 2017 Ettus Research, a National Instruments Company
-//
-// SPDX-License-Identifier: GPL-3.0-or-later
-//
-
-#pragma once
-
-#include <boost/python.hpp>
-#include <boost/python/stl_iterator.hpp>
-#include <vector>
-#include <string>
-
-namespace bp = boost::python;
-
-template<typename MapType>
-struct map_to_python_dict
-{
- static PyObject* convert(MapType const& input_map)
- {
- bp::dict py_dict;
- for (const auto& element: input_map){
- py_dict[element.first] = element.second;
- }
- return bp::incref(py_dict.ptr());
- }
-
-};
-
-template<typename Container>
-struct iterable_to_python_list
-{
- static PyObject* convert(Container const& input)
- {
- bp::list py_list;
- for (const auto& element: input){
- py_list.append(element);
- }
- return bp::incref(py_list.ptr());
- }
-};
-
-// Converter for std::vector / std::list arguments from python iterables
-struct iterable_converter
-{
- template <typename Container>
- iterable_converter&
- from_python()
- {
- bp::converter::registry::push_back(
- &iterable_converter::convertible,
- &iterable_converter::construct<Container>,
- bp::type_id<Container>());
- return *this;
- }
-
- static void* convertible(PyObject* object)
- {
- return PyObject_GetIter(object) ? object : NULL;
- }
-
- template <typename Container>
- static void construct(
- PyObject* object,
- bp::converter::rvalue_from_python_stage1_data* data)
- {
- // Object is a borrowed reference, so create a handle indicting it is
- // borrowed for proper reference counting.
- bp::handle<> handle(bp::borrowed(object));
-
- // Obtain a handle to the memory block that the converter has allocated
- // for the C++ type.
- typedef bp::converter::rvalue_from_python_storage<Container>
- storage_type;
- void* storage = reinterpret_cast<storage_type*>(data)->storage.bytes;
-
- typedef bp::stl_input_iterator<typename Container::value_type>
- iterator;
-
- // Allocate the C++ type into the converter's memory block, and assign
- // its handle to the converter's convertible variable. The C++
- // container is populated by passing the begin and end iterators of
- // the python object to the container's constructor.
- new (storage) Container(
- iterator(bp::object(handle)), // begin
- iterator()); // end
- data->convertible = storage;
- }
-};
-
-void export_converter(){
- // LIBMPM_BOOST_PREAMBLE("helper")
- bp::to_python_converter<std::vector< std::string >, iterable_to_python_list<std::vector< std::string > >, false>();
-}