generic-library/msgpack
1
0
Fork 0
mirror of https://github.com/msgpack/msgpack-c.git synced 2025-10-15 15:16:51 +02:00
Code Issues Projects Releases Wiki Activity
Files
79a127a8b62286034a6cbfd9aefb902da747c275
msgpack/include/msgpack/object.hpp
Takatoshi Kondo 79a127a8b6 Moved serialize operator.
2015-03-10 21:14:20 +09:00

713 lines
20 KiB
C++
Raw Blame History

//
// MessagePack for C++ static resolution routine
//
// Copyright (C) 2008-2014 FURUHASHI Sadayuki and KONDO Takatoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef MSGPACK_OBJECT_HPP
#define MSGPACK_OBJECT_HPP
#include "msgpack/versioning.hpp"
#include "msgpack/object_fwd.hpp"
#include "msgpack/pack.hpp"
#include "msgpack/zone.hpp"
#include "msgpack/adaptor/int_fwd.hpp"
#include "msgpack/adaptor/bool_fwd.hpp"
#include "msgpack/adaptor/char_ptr_fwd.hpp"
#include "msgpack/adaptor/deque_fwd.hpp"
#include "msgpack/adaptor/fixint_fwd.hpp"
#include "msgpack/adaptor/float_fwd.hpp"
#include "msgpack/adaptor/int_fwd.hpp"
#include "msgpack/adaptor/list_fwd.hpp"
#include "msgpack/adaptor/map_fwd.hpp"
#include "msgpack/adaptor/msgpack_tuple_fwd.hpp"
#include "msgpack/adaptor/nil_fwd.hpp"
#include "msgpack/adaptor/pair_fwd.hpp"
#include "msgpack/adaptor/raw_fwd.hpp"
#include "msgpack/adaptor/set_fwd.hpp"
#include "msgpack/adaptor/string_fwd.hpp"
#include "msgpack/adaptor/vector_fwd.hpp"
#include "msgpack/adaptor/vector_bool_fwd.hpp"
#include "msgpack/adaptor/vector_char_fwd.hpp"
#if defined(MSGPACK_USE_CPP03)
#include "msgpack/adaptor/tr1/unordered_map_fwd.hpp"
#include "msgpack/adaptor/tr1/unordered_set_fwd.hpp"
#else // defined(MSGPACK_USE_CPP03)
#include "adaptor/cpp11/array_fwd.hpp"
#include "adaptor/cpp11/array_char_fwd.hpp"
#include "adaptor/cpp11/forward_list_fwd.hpp"
#include "adaptor/cpp11/tuple_fwd.hpp"
#include "adaptor/cpp11/unordered_map_fwd.hpp"
#include "adaptor/cpp11/unordered_set_fwd.hpp"
#endif // defined(MSGPACK_USE_CPP03)
#include <string.h>
#include <stdexcept>
#include <typeinfo>
#include <limits>
#include <ostream>
namespace msgpack {
MSGPACK_API_VERSION_NAMESPACE(v1) {
struct object::with_zone : object {
with_zone(msgpack::zone& zone) : zone(zone) { }
msgpack::zone& zone;
private:
with_zone();
};
struct object::implicit_type {
implicit_type(object const& o) : obj(o) { }
~implicit_type() { }
template <typename T>
operator T() { return obj.as<T>(); }
private:
msgpack::object const& obj;
};
inline msgpack::object const& operator>> (msgpack::object const& o, msgpack::object& v)
{
v = o;
return o;
}
template <typename T>
inline msgpack::object const& operator>> (msgpack::object const& o, T& v)
{
// If you get a error 'class your_class has no member named 'msgpack_unpack',
// check the following:
// 1. The class your_class should have MSGPACK_DEFINE macro or
//
// 2. The class your_class should have the following operator declaration and
// definition:
// inline object const& operator>> (object const& o, std::string& v)
//
// See 3.
//
// 3. #include "msgpack.hpp" too early.
// Replace msgpack.hpp with msgpack_fwd.hpp, then,
// place operator declarations as follows:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// object const& operator>> (object const& o, std::string& v);
// }
// }
//
// then, #include "msgpack.hpp", finally place the operator definitions as follows:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// object const& operator>> (object const& o, std::string& v) {
// // converting operations here
// }
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
v.msgpack_unpack(o.convert());
return o;
}
// obsolete
template <typename Type>
class define : public Type {
public:
typedef Type msgpack_type;
typedef define<Type> define_type;
define() {}
define(const msgpack_type& v) : msgpack_type(v) {}
template <typename Packer>
void msgpack_pack(Packer& o) const
{
msgpack::operator<<(o, static_cast<const msgpack_type&>(*this));
}
void msgpack_unpack(object const& o)
{
msgpack::operator>>(o, static_cast<msgpack_type&>(*this));
}
};
namespace detail {
template <typename Stream, typename T>
struct packer_serializer {
static msgpack::packer<Stream>& pack(msgpack::packer<Stream>& o, const T& v) {
// If you get a error 'const class your_class has no member named 'msgpack_pack',
// check the following:
// 1. The class your_class should have MSGPACK_DEFINE macro or
//
// 2. The class your_class should have the following operator declaration and
// definition:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// template <typename Stream>
// inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const your_class& v)
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// See 3.
//
// 3. #include "msgpack.hpp" too early.
// Replace msgpack.hpp with msgpack_fwd.hpp, then,
// place operator declarations as follows:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// template <typename Stream>
// msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const your_class& v);
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// then, #include "msgpack.hpp", finally place the operator definitions as follows:
//
// template <typename Stream>
// inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const your_class& v) {
// // packing operation
// }
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
v.msgpack_pack(o);
return o;
}
};
}
inline void operator<< (msgpack::object::with_zone& o, const msgpack::object& v)
{
o.type = v.type;
switch(v.type) {
case msgpack::type::NIL:
case msgpack::type::BOOLEAN:
case msgpack::type::POSITIVE_INTEGER:
case msgpack::type::NEGATIVE_INTEGER:
case msgpack::type::FLOAT:
std::memcpy(&o.via, &v.via, sizeof(v.via));
return;
case msgpack::type::STR: {
char* ptr = static_cast<char*>(o.zone.allocate_align(v.via.str.size));
o.via.str.ptr = ptr;
o.via.str.size = v.via.str.size;
std::memcpy(ptr, v.via.str.ptr, v.via.str.size);
return;
}
case msgpack::type::BIN: {
char* ptr = static_cast<char*>(o.zone.allocate_align(v.via.bin.size));
o.via.bin.ptr = ptr;
o.via.bin.size = v.via.bin.size;
std::memcpy(ptr, v.via.bin.ptr, v.via.bin.size);
return;
}
case msgpack::type::EXT: {
char* ptr = static_cast<char*>(o.zone.allocate_align(v.via.ext.size + 1));
o.via.ext.ptr = ptr;
o.via.ext.size = v.via.ext.size;
std::memcpy(ptr, v.via.ext.ptr, v.via.ext.size + 1);
return;
}
case msgpack::type::ARRAY:
o.via.array.ptr = static_cast<object*>(o.zone.allocate_align(sizeof(object) * v.via.array.size));
o.via.array.size = v.via.array.size;
for (msgpack::object
* po(o.via.array.ptr),
* pv(v.via.array.ptr),
* const pvend(v.via.array.ptr + v.via.array.size);
pv < pvend;
++po, ++pv) {
new (po) msgpack::object(*pv, o.zone);
}
return;
case msgpack::type::MAP:
o.via.map.ptr = (object_kv*)o.zone.allocate_align(sizeof(object_kv) * v.via.map.size);
o.via.map.size = v.via.map.size;
for(msgpack::object_kv
* po(o.via.map.ptr),
* pv(v.via.map.ptr),
* const pvend(v.via.map.ptr + v.via.map.size);
pv < pvend;
++po, ++pv) {
object_kv* kv = new (po) object_kv;
new (&kv->key) msgpack::object(pv->key, o.zone);
new (&kv->val) msgpack::object(pv->val, o.zone);
}
return;
default:
throw msgpack::type_error();
}
}
inline void operator<< (msgpack::object::with_zone& o, const msgpack::object::with_zone& v)
{
return o << static_cast<msgpack::object const&>(v);
}
// deconvert operator
template <typename T>
inline void operator<< (msgpack::object::with_zone& o, const T& v)
{
// If you get a error 'const class your_class has no member named 'msgpack_object',
// check the following:
// 1. The class your_class should have MSGPACK_DEFINE macro or
//
// 2. The class your_class should have the following operator declaration and
// definition:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// void operator<< (object::with_zone& o, const your_class& v);
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// See 3.
//
// 3. #include "msgpack.hpp" too early.
// Replace msgpack.hpp with msgpack_fwd.hpp, then,
// place operator declarations as follows:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// void operator<< (object::with_zone& o, const your_class& v);
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// then, #include "msgpack.hpp", finally place the operator definitions as follows:
//
// void operator<< (object::with_zone& o, const your_class& v) {
// // set object attributes using v.
// }
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
v.msgpack_object(static_cast<object*>(&o), o.zone);
}
template <typename Stream>
template <typename T>
inline msgpack::packer<Stream>& packer<Stream>::pack(const T& v)
{
msgpack::operator<<(*this, v);
return *this;
}
inline bool operator==(const msgpack::object& x, const msgpack::object& y)
{
if(x.type != y.type) { return false; }
switch(x.type) {
case msgpack::type::NIL:
return true;
case msgpack::type::BOOLEAN:
return x.via.boolean == y.via.boolean;
case msgpack::type::POSITIVE_INTEGER:
return x.via.u64 == y.via.u64;
case msgpack::type::NEGATIVE_INTEGER:
return x.via.i64 == y.via.i64;
case msgpack::type::FLOAT:
return x.via.f64 == y.via.f64;
case msgpack::type::STR:
return x.via.str.size == y.via.str.size &&
std::memcmp(x.via.str.ptr, y.via.str.ptr, x.via.str.size) == 0;
case msgpack::type::BIN:
return x.via.bin.size == y.via.bin.size &&
std::memcmp(x.via.bin.ptr, y.via.bin.ptr, x.via.bin.size) == 0;
case msgpack::type::EXT:
return x.via.ext.size == y.via.ext.size &&
std::memcmp(x.via.ext.ptr, y.via.ext.ptr, x.via.ext.size) == 0;
case msgpack::type::ARRAY:
if(x.via.array.size != y.via.array.size) {
return false;
} else if(x.via.array.size == 0) {
return true;
} else {
msgpack::object* px = x.via.array.ptr;
msgpack::object* const pxend = x.via.array.ptr + x.via.array.size;
msgpack::object* py = y.via.array.ptr;
do {
if(!(*px == *py)) {
return false;
}
++px;
++py;
} while(px < pxend);
return true;
}
case msgpack::type::MAP:
if(x.via.map.size != y.via.map.size) {
return false;
} else if(x.via.map.size == 0) {
return true;
} else {
msgpack::object_kv* px = x.via.map.ptr;
msgpack::object_kv* const pxend = x.via.map.ptr + x.via.map.size;
msgpack::object_kv* py = y.via.map.ptr;
do {
if(!(px->key == py->key) || !(px->val == py->val)) {
return false;
}
++px;
++py;
} while(px < pxend);
return true;
}
default:
return false;
}
}
template <typename T>
inline bool operator==(const msgpack::object& x, const T& y)
try {
return x == msgpack::object(y);
} catch (msgpack::type_error&) {
return false;
}
inline bool operator!=(const msgpack::object& x, const msgpack::object& y)
{ return !(x == y); }
template <typename T>
inline bool operator==(const T& y, const msgpack::object x)
{ return x == y; }
template <typename T>
inline bool operator!=(const msgpack::object& x, const T& y)
{ return !(x == y); }
template <typename T>
inline bool operator!=(const T& y, const msgpack::object& x)
{ return x != y; }
inline msgpack::object::implicit_type object::convert() const
{
return msgpack::object::implicit_type(*this);
}
template <typename T>
inline void object::convert(T& v) const
{
msgpack::operator>>(*this, v);
}
template <typename T>
inline void object::convert(T* v) const
{
convert(*v);
}
template <typename T>
inline T object::as() const
{
T v;
convert(v);
return v;
}
inline object::object()
{
type = msgpack::type::NIL;
}
template <typename T>
inline object::object(const T& v)
{
// If you get a error 'no matching function call to
// operator<<(msgpack::v?::object::object(const T&)
// [with T = your_class]'
//
// check the following:
// 1. The class your_class should have MSGPACK_DEFINE macro or
//
// 2. The class your_class should have the following operator declaration and
// definition:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// void operator<< (object& o, const your_class& v);
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// See 3.
//
// 3. #include "msgpack.hpp" too early.
// Replace msgpack.hpp with msgpack_fwd.hpp, then,
// place operator declarations as follows:
//
// namespace msgpack {
// MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS) {
// void operator<< (object& o, const your_class& v);
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
// then, #include "msgpack.hpp", finally place the operator definitions as follows:
//
// void operator<< (object& o, const your_class& v) {
// // set object attributes using v.
// }
// } // MSGPACK_API_VERSION_NAMESPACE(MSGPACK_DEFAULT_API_NS)
// } // namespace msgpack
//
msgpack::operator<<(*this, v);
}
template <typename T>
inline object& object::operator=(const T& v)
{
*this = object(v);
return *this;
}
template <typename T>
object::object(const T& v, msgpack::zone& z)
{
with_zone oz(z);
msgpack::operator<<(oz, v);
type = oz.type;
via = oz.via;
}
template <typename T>
object::object(const T& v, msgpack::zone* z)
{
with_zone oz(*z);
msgpack::operator<<(oz, v);
type = oz.type;
via = oz.via;
}
inline object::object(const msgpack_object& o)
{
// FIXME beter way?
std::memcpy(this, &o, sizeof(o));
}
inline void operator<< (msgpack::object& o, const msgpack_object& v)
{
// FIXME beter way?
std::memcpy(&o, &v, sizeof(v));
}
inline object::operator msgpack_object() const
{
// FIXME beter way?
msgpack_object obj;
std::memcpy(&obj, this, sizeof(obj));
return obj;
}
// obsolete
template <typename T>
inline void convert(T& v, msgpack::object const& o)
{
o.convert(v);
}
// obsolete
template <typename Stream, typename T>
inline void pack(msgpack::packer<Stream>& o, const T& v)
{
o.pack(v);
}
// obsolete
template <typename Stream, typename T>
inline void pack_copy(msgpack::packer<Stream>& o, T v)
{
pack(o, v);
}
template <typename Stream>
inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const msgpack::object& v)
{
switch(v.type) {
case msgpack::type::NIL:
o.pack_nil();
return o;
case msgpack::type::BOOLEAN:
if(v.via.boolean) {
o.pack_true();
} else {
o.pack_false();
}
return o;
case msgpack::type::POSITIVE_INTEGER:
o.pack_uint64(v.via.u64);
return o;
case msgpack::type::NEGATIVE_INTEGER:
o.pack_int64(v.via.i64);
return o;
case msgpack::type::FLOAT:
o.pack_double(v.via.f64);
return o;
case msgpack::type::STR:
o.pack_str(v.via.str.size);
o.pack_str_body(v.via.str.ptr, v.via.str.size);
return o;
case msgpack::type::BIN:
o.pack_bin(v.via.bin.size);
o.pack_bin_body(v.via.bin.ptr, v.via.bin.size);
return o;
case msgpack::type::EXT:
o.pack_ext(v.via.ext.size, v.via.ext.type());
o.pack_ext_body(v.via.ext.data(), v.via.ext.size);
return o;
case msgpack::type::ARRAY:
o.pack_array(v.via.array.size);
for(msgpack::object* p(v.via.array.ptr),
* const pend(v.via.array.ptr + v.via.array.size);
p < pend; ++p) {
msgpack::operator<<(o, *p);
}
return o;
case msgpack::type::MAP:
o.pack_map(v.via.map.size);
for(msgpack::object_kv* p(v.via.map.ptr),
* const pend(v.via.map.ptr + v.via.map.size);
p < pend; ++p) {
msgpack::operator<<(o, p->key);
msgpack::operator<<(o, p->val);
}
return o;
default:
throw msgpack::type_error();
}
}
template <typename Stream>
msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const msgpack::object::with_zone& v)
{
return o << static_cast<msgpack::object>(v);
}
inline std::ostream& operator<< (std::ostream& s, const msgpack::object& o)
{
switch(o.type) {
case msgpack::type::NIL:
s << "nil";
break;
case msgpack::type::BOOLEAN:
s << (o.via.boolean ? "true" : "false");
break;
case msgpack::type::POSITIVE_INTEGER:
s << o.via.u64;
break;
case msgpack::type::NEGATIVE_INTEGER:
s << o.via.i64;
break;
case msgpack::type::FLOAT:
s << o.via.f64;
break;
case msgpack::type::STR:
(s << '"').write(o.via.str.ptr, o.via.str.size) << '"';
break;
case msgpack::type::BIN:
(s << '"').write(o.via.bin.ptr, o.via.bin.size) << '"';
break;
case msgpack::type::EXT:
s << "EXT";
break;
case msgpack::type::ARRAY:
s << "[";
if(o.via.array.size != 0) {
msgpack::object* p(o.via.array.ptr);
s << *p;
++p;
for(msgpack::object* const pend(o.via.array.ptr + o.via.array.size);
p < pend; ++p) {
s << ", " << *p;
}
}
s << "]";
break;
case msgpack::type::MAP:
s << "{";
if(o.via.map.size != 0) {
msgpack::object_kv* p(o.via.map.ptr);
s << p->key << "=>" << p->val;
++p;
for(msgpack::object_kv* const pend(o.via.map.ptr + o.via.map.size);
p < pend; ++p) {
s << ", " << p->key << "=>" << p->val;
}
}
s << "}";
break;
default:
// FIXME
s << "#<UNKNOWN " << static_cast<uint16_t>(o.type) << ">";
}
return s;
}
} // MSGPACK_API_VERSION_NAMESPACE(v1)
} // namespace msgpack
#include "msgpack/type.hpp"
#endif /* msgpack/object.hpp */
Reference in New Issue View Git Blame Copy Permalink