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msgpack-3.3.0/include/msgpack/v2/create_object_visitor.hpp  view on Meta::CPAN

//
// MessagePack for C++ deserializing routine
//
// Copyright (C) 2017 KONDO Takatoshi
//
//    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_V2_CREATE_OBJECT_VISITOR_HPP
#define MSGPACK_V2_CREATE_OBJECT_VISITOR_HPP

#include "msgpack/unpack_decl.hpp"
#include "msgpack/unpack_exception.hpp"
#include "msgpack/v2/create_object_visitor_decl.hpp"
#include "msgpack/v2/null_visitor.hpp"

namespace msgpack {

/// @cond
MSGPACK_API_VERSION_NAMESPACE(v2) {
/// @endcond

namespace detail {

class create_object_visitor : public msgpack::v2::null_visitor {
public:
    create_object_visitor(unpack_reference_func f, void* user_data, unpack_limit const& limit)
        :m_func(f), m_user_data(user_data), m_limit(limit) {
        m_stack.reserve(MSGPACK_EMBED_STACK_SIZE);
        m_stack.push_back(&m_obj);
    }

#if !defined(MSGPACK_USE_CPP03)
    create_object_visitor(create_object_visitor&& other)
        :m_func(other.m_func),
         m_user_data(other.m_user_data),
         m_limit(std::move(other.m_limit)),
         m_stack(std::move(other.m_stack)),
         m_zone(other.m_zone),
         m_referenced(other.m_referenced) {
        other.m_zone = MSGPACK_NULLPTR;
        m_stack[0] = &m_obj;
    }
    create_object_visitor& operator=(create_object_visitor&& other) {
        this->~create_object_visitor();
        new (this) create_object_visitor(std::move(other));
        return *this;
    }
#endif // !defined(MSGPACK_USE_CPP03)

    void init() {
        m_stack.resize(1);
        m_obj = msgpack::object();
        m_stack[0] = &m_obj;
    }
    msgpack::object const& data() const
    {
        return m_obj;
    }
    msgpack::zone const& zone() const { return *m_zone; }
    msgpack::zone& zone() { return *m_zone; }
    void set_zone(msgpack::zone& zone) { m_zone = &zone; }
    bool referenced() const { return m_referenced; }
    void set_referenced(bool referenced) { m_referenced = referenced; }
    // visit functions
    bool visit_nil() {
        msgpack::object* obj = m_stack.back();
        obj->type = msgpack::type::NIL;
        return true;
    }
    bool visit_boolean(bool v) {
        msgpack::object* obj = m_stack.back();
        obj->type = msgpack::type::BOOLEAN;
        obj->via.boolean = v;
        return true;
    }
    bool visit_positive_integer(uint64_t v) {
        msgpack::object* obj = m_stack.back();
        obj->type = msgpack::type::POSITIVE_INTEGER;
        obj->via.u64 = v;
        return true;
    }
    bool visit_negative_integer(int64_t v) {
        msgpack::object* obj = m_stack.back();
        if(v >= 0) {
            obj->type = msgpack::type::POSITIVE_INTEGER;
            obj->via.u64 = static_cast<uint64_t>(v);
        }
        else {