mirror of
https://github.com/msgpack/msgpack-c
synced 2026-06-08 16:11:40 +00:00
Takatoshi Kondo
2865a96ba5
Changed macro name from MSGPACK_USE_LEGACY_NIL to MSGPACK_DISABLE_LEGACY_NIL. msgpack-c shouldn't make compile error on existing codes by default without major version up. So if you want to disable msgpack::type::nil, you need to define MSGPACK_DISABLE_LEGACY_NIL macro.
91 lines
1.8 KiB
C++
91 lines
1.8 KiB
C++
//
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// MessagePack for C++ static resolution routine
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//
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// Copyright (C) 2008-2009 FURUHASHI Sadayuki
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef MSGPACK_TYPE_NIL_HPP
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#define MSGPACK_TYPE_NIL_HPP
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#include "msgpack/versioning.hpp"
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#include "msgpack/adaptor/adaptor_base.hpp"
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namespace msgpack {
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/// @cond
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MSGPACK_API_VERSION_NAMESPACE(v1) {
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/// @endcond
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namespace type {
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struct nil_t { };
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#if !defined(MSGPACK_DISABLE_LEGACY_NIL)
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typedef nil_t nil;
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#endif // !defined(MSGPACK_DISABLE_LEGACY_NIL)
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inline bool operator<(nil_t const& lhs, nil_t const& rhs) {
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return &lhs < &rhs;
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}
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inline bool operator==(nil_t const& lhs, nil_t const& rhs) {
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return &lhs == &rhs;
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}
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} // namespace type
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namespace adaptor {
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template <>
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struct convert<type::nil_t> {
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msgpack::object const& operator()(msgpack::object const& o, type::nil_t&) const {
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if(o.type != msgpack::type::NIL) { throw msgpack::type_error(); }
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return o;
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}
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};
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template <>
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struct pack<type::nil_t> {
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template <typename Stream>
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msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const type::nil_t&) const {
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o.pack_nil();
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return o;
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}
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};
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template <>
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struct object<type::nil_t> {
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void operator()(msgpack::object& o, type::nil_t) const {
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o.type = msgpack::type::NIL;
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}
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};
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template <>
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struct object_with_zone<type::nil_t> {
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void operator()(msgpack::object::with_zone& o, type::nil_t v) const {
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static_cast<msgpack::object&>(o) << v;
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}
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};
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} // namespace adaptor
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template <>
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inline void msgpack::object::as<void>() const
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{
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msgpack::type::nil_t v;
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convert(v);
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}
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/// @cond
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} // MSGPACK_API_VERSION_NAMESPACE(v1)
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/// @endcond
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} // namespace msgpack
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#endif // MSGPACK_TYPE_NIL_HPP
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