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//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2021 KONDO Takatoshi and Daniil Kovalev
//
// 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 MSGPACK_V1_TYPE_CPP20_SPAN_HPP
#define MSGPACK_V1_TYPE_CPP20_SPAN_HPP
#include "msgpack/cpp_version.hpp"
// Some compilers still do not set the corresponding macro to 202002
#if MSGPACK_CPP_VERSION > 201703
#include "msgpack/versioning.hpp"
#include "msgpack/adaptor/adaptor_base.hpp"
#include "msgpack/object.hpp"
#include "msgpack/adaptor/check_container_size.hpp"
#include "msgpack/meta.hpp"
#include <span>
#include <cstring>
#include <cstddef>
namespace msgpack {
/// @cond
MSGPACK_API_VERSION_NAMESPACE(v1) {
/// @endcond
namespace adaptor {
#define MSGPACK_ADAPTOR_CONVERT_SPAN_BINARY(byte_t) \
template <> \
struct convert<std::span<const byte_t> > { \
msgpack::object const& operator()(msgpack::object const& o, std::span<const byte_t>& v) const { \
switch (o.type) { \
case msgpack::type::BIN: \
v = std::span(reinterpret_cast<const byte_t*>(o.via.bin.ptr), o.via.bin.size); \
break; \
default: \
throw msgpack::type_error(); \
break; \
} \
return o; \
} \
};
#define MSGPACK_ADAPTOR_PACK_SPAN_BINARY(byte_t) \
template <> \
struct pack<std::span<byte_t> > { \
template <typename Stream> \
msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::span<byte_t>& v) const { \
uint32_t size = checked_get_container_size(v.size()); \
o.pack_bin(size); \
if (size != 0) { \
o.pack_bin_body(reinterpret_cast<char const*>(v.data()), size); \
} \
return o; \
} \
};
#define MSGPACK_ADAPTOR_OBJECT_SPAN_BINARY(byte_t) \
template <> \
struct object<std::span<byte_t> > { \
void operator()(msgpack::object& o, const std::span<byte_t>& v) const { \
uint32_t size = checked_get_container_size(v.size()); \
o.type = msgpack::type::BIN; \
if (size != 0) { \
o.via.bin.ptr = reinterpret_cast<char const*>(v.data()); \
} \
o.via.bin.size = size; \
} \
};
#define MSGPACK_ADAPTOR_OBJECT_WITH_ZONE_SPAN_BINARY(byte_t) \
template <> \
struct object_with_zone<std::span<byte_t> > { \
void operator()(msgpack::object::with_zone& o, const std::span<byte_t>& v) const { \
uint32_t size = checked_get_container_size(v.size()); \
o.type = msgpack::type::BIN; \
o.via.bin.size = size; \
if (size != 0) { \
char* ptr = static_cast<char*>(o.zone.allocate_align(size, MSGPACK_ZONE_ALIGNOF(char))); \
o.via.bin.ptr = ptr; \
std::memcpy(ptr, v.data(), size); \
} \
} \
};
#define MSGPACK_ADAPTOR_SPAN_BINARY(byte_t) \
MSGPACK_ADAPTOR_CONVERT_SPAN_BINARY(byte_t) \
MSGPACK_ADAPTOR_PACK_SPAN_BINARY(byte_t) \
MSGPACK_ADAPTOR_PACK_SPAN_BINARY(const byte_t) \
MSGPACK_ADAPTOR_OBJECT_SPAN_BINARY(byte_t) \
MSGPACK_ADAPTOR_OBJECT_SPAN_BINARY(const byte_t) \
MSGPACK_ADAPTOR_OBJECT_WITH_ZONE_SPAN_BINARY(byte_t) \
MSGPACK_ADAPTOR_OBJECT_WITH_ZONE_SPAN_BINARY(const byte_t)
MSGPACK_ADAPTOR_SPAN_BINARY(char)
MSGPACK_ADAPTOR_SPAN_BINARY(unsigned char)
MSGPACK_ADAPTOR_SPAN_BINARY(std::byte)
#undef MSGPACK_ADAPTOR_SPAN_BINARY
#undef MSGPACK_ADAPTOR_OBJECT_WITH_ZONE_SPAN_BINARY
#undef MSGPACK_ADAPTOR_OBJECT_SPAN_BINARY
#undef MSGPACK_ADAPTOR_PACK_SPAN_BINARY
#undef MSGPACK_ADAPTOR_CONVERT_SPAN_BINARY
} // namespace adaptor
/// @cond
} // MSGPACK_API_VERSION_NAMESPACE(v1)
/// @endcond
} // namespace msgpack
#endif // MSGPACK_CPP_VERSION > 201703
#endif // MSGPACK_V1_TYPE_CPP11_ARRAY_HPP
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