knowrob::py::python_optional< T > Struct Template Reference

#include <optional.h>

Inheritance diagram for knowrob::py::python_optional< T >:

Collaboration diagram for knowrob::py::python_optional< T >:

Classes
struct	conversion

Public Member Functions
	python_optional ()
	python_optional ()

Static Public Member Functions
static void *	convertible (PyObject *obj)
static void	constructor (PyObject *obj, boost::python::converter::rvalue_from_python_stage1_data *data)
static void *	convertible (PyObject *obj)
static void	constructor (PyObject *obj, boost::python::converter::rvalue_from_python_stage1_data *data)

Detailed Description

template<typename T>
struct knowrob::py::python_optional< T >

handling of std::optional, map no-value to None in Python.

Definition at line 15 of file optional.h.

Constructor & Destructor Documentation

python_optional() [1/2]

template<typename T >

knowrob::py::python_optional< T >::python_optional ( )

inlineexplicit

Definition at line 45 of file optional.h.

                                   {
            using namespace boost::python;
            if (!extract<std::optional<T> >(object()).check()) {
                to_python_converter<std::optional<T>, conversion, true>();
                converter::registry::push_back(
                        &convertible,
                        &constructor,
                        type_id<std::optional<T> >(),
                        &conversion::get_pytype
                );
            }
        }

python_optional() [2/2]

template<typename T >

knowrob::py::python_optional< T >::python_optional ( )

inlineexplicit

Definition at line 45 of file optional.h.

                                   {
            using namespace boost::python;
            if (!extract<std::optional<T> >(object()).check()) {
                to_python_converter<std::optional<T>, conversion, true>();
                converter::registry::push_back(
                        &convertible,
                        &constructor,
                        type_id<std::optional<T> >(),
                        &conversion::get_pytype
                );
            }
        }

Member Function Documentation

constructor() [1/2]

template<typename T >

static void knowrob::py::python_optional< T >::constructor ( PyObject *  obj, boost::python::converter::rvalue_from_python_stage1_data *  data  )

inlinestatic

Definition at line 28 of file optional.h.

          {
            using namespace boost::python;
            void *const storage =
                    reinterpret_cast<
                            converter::rvalue_from_python_storage<std::optional<T> > *
                            >(data)->storage.bytes;
            if (obj == Py_None) {
                new(storage) std::optional<T>();
            } else {
                new(storage) std::optional<T>(extract<T>(obj));
            }
            data->convertible = storage;
        }

constructor() [2/2]

template<typename T >

static void knowrob::py::python_optional< T >::constructor ( PyObject *  obj, boost::python::converter::rvalue_from_python_stage1_data *  data  )

inlinestatic

Definition at line 28 of file optional.h.

          {
            using namespace boost::python;
            void *const storage =
                    reinterpret_cast<
                            converter::rvalue_from_python_storage<std::optional<T> > *
                            >(data)->storage.bytes;
            if (obj == Py_None) {
                new(storage) std::optional<T>();
            } else {
                new(storage) std::optional<T>(extract<T>(obj));
            }
            data->convertible = storage;
        }

convertible() [1/2]

template<typename T >

static void* knowrob::py::python_optional< T >::convertible ( PyObject *  obj )

inlinestatic

Definition at line 23 of file optional.h.

                                                {
            using namespace boost::python;
            return obj == Py_None || extract<T>(obj).check() ? obj : NULL;
        }

convertible() [2/2]

template<typename T >

static void* knowrob::py::python_optional< T >::convertible ( PyObject *  obj )

inlinestatic

Definition at line 23 of file optional.h.

                                                {
            using namespace boost::python;
            return obj == Py_None || extract<T>(obj).check() ? obj : NULL;
        }

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The documentation for this struct was generated from the following file:

• build/_CPack_Packages/Linux/DEB/knowrob-2.1.0-Linux/usr/include/knowrob/integration/python/converter/optional.h