python/include/boost/python/object/pickle_support.hpp at python313 · boostorg/python · GitHub

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// (C) Copyright R.W. Grosse-Kunstleve 2002.

// Distributed under the Boost Software License, Version 1.0. (See

// accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP

# define BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP

# include <boost/python/detail/prefix.hpp>

namespace boost { namespace python {

namespace api

{

class object;

}

using api::object;

class tuple;

BOOST_PYTHON_DECL object const& make_instance_reduce_function();

struct pickle_suite;

namespace error_messages {

template <class T>

struct missing_pickle_suite_function_or_incorrect_signature {};

inline void must_be_derived_from_pickle_suite(pickle_suite const&) {}

}

namespace detail { struct pickle_suite_registration; }

struct pickle_suite

{

private:

struct inaccessible {};

friend struct detail::pickle_suite_registration;

public:

static inaccessible* getinitargs() { return 0; }

static inaccessible* getstate() { return 0; }

static inaccessible* setstate() { return 0; }

static bool getstate_manages_dict() { return false; }

};

namespace detail {

struct pickle_suite_registration

{

typedef pickle_suite::inaccessible inaccessible;

template <class Class_, class Tgetinitargs>

static

void

register_(

Class_& cl,

tuple (*getinitargs_fn)(Tgetinitargs),

inaccessible* (* /*getstate_fn*/)(),

inaccessible* (* /*setstate_fn*/)(),

bool)

{

cl.enable_pickling_(false);

cl.def("__getinitargs__", getinitargs_fn);

}

template <class Class_,

class Rgetstate, class Tgetstate,

class Tsetstate, class Ttuple>

static

void

register_(

Class_& cl,

inaccessible* (* /*getinitargs_fn*/)(),

Rgetstate (*getstate_fn)(Tgetstate),

void (*setstate_fn)(Tsetstate, Ttuple),

bool getstate_manages_dict)

{

cl.enable_pickling_(getstate_manages_dict);

cl.def("__getstate__", getstate_fn);

cl.def("__setstate__", setstate_fn);

}

template <class Class_,

class Tgetinitargs,

class Rgetstate, class Tgetstate,

class Tsetstate, class Ttuple>

static

void

register_(

Class_& cl,

tuple (*getinitargs_fn)(Tgetinitargs),

Rgetstate (*getstate_fn)(Tgetstate),

void (*setstate_fn)(Tsetstate, Ttuple),

bool getstate_manages_dict)

{

cl.enable_pickling_(getstate_manages_dict);

cl.def("__getinitargs__", getinitargs_fn);

cl.def("__getstate__", getstate_fn);

cl.def("__setstate__", setstate_fn);

}

template <class Class_>

static

void

register_(

Class_&,

...)

{

typedef typename

error_messages::missing_pickle_suite_function_or_incorrect_signature<

Class_>::error_type error_type BOOST_ATTRIBUTE_UNUSED;

}

};

template <typename PickleSuiteType>

struct pickle_suite_finalize

: PickleSuiteType,

pickle_suite_registration

{};

} // namespace detail

}} // namespace boost::python

#endif // BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP

python/include/boost/python/object/pickle_support.hpp at python313 · boostorg/python · GitHub

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