field_codec_data.h

// Copyright 2023:
//   GobySoft, LLC (2013-)
//   Community contributors (see AUTHORS file)
// File authors:
//   Toby Schneider <toby@gobysoft.org>
//
//
// This file is part of the Dynamic Compact Control Language Library
// ("DCCL").
//
// DCCL is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// DCCL is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DCCL.  If not, see <http://www.gnu.org/licenses/>.
#ifndef DCCLFIELDCODECDATAH
#define DCCLFIELDCODECDATAH
 
#include "../dynamic_conditions.h"
 
#include "field_codec_message_stack.h"
 
#include <typeindex>
 
namespace google
{
namespace protobuf
{
class Message;
class Descriptor;
} // namespace protobuf
} // namespace google
 
namespace dccl
{
namespace internal
{
// Data shared amongst all the FieldCodecs for a single message
struct CodecData
{
    MessagePart part_{dccl::UNKNOWN};
    bool strict_{false};
    const google::protobuf::Message* root_message_{nullptr};
    const google::protobuf::Descriptor* root_descriptor_{nullptr};
    MessageStackData message_data_;
    DynamicConditions dynamic_conditions_;
    
    template <typename FieldCodecType>
    void set_codec_specific_data(std::shared_ptr<dccl::any> data)
    {
        codec_specific_[std::type_index(typeid(FieldCodecType))] = data;
    }
 
    template <typename FieldCodecType> std::shared_ptr<dccl::any> codec_specific_data()
    {
        return codec_specific_.at(std::type_index(typeid(FieldCodecType)));
    }
 
    template <typename FieldCodecType> bool has_codec_specific_data()
    {
        return codec_specific_.count(std::type_index(typeid(FieldCodecType)));
    }
 
  private:
    std::map<std::type_index, std::shared_ptr<dccl::any>> codec_specific_;
};
} // namespace internal
} // namespace dccl
 
#endif