field_codec_default.h

// Copyright 2014-2023:
//   GobySoft, LLC (2013-)
//   Massachusetts Institute of Technology (2007-2014)
//   Community contributors (see AUTHORS file)
// File authors:
//   Toby Schneider <toby@gobysoft.org>
//   Kyle Guilbert <kguilbert@aphysci.com>
//   Chris Murphy <cmurphy@aphysci.com>
//
//
// 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/>.
// implements FieldCodecBase for all the basic DCCL types for version 3
 
#ifndef DCCLV3FIELDCODECDEFAULT20140403H
#define DCCLV3FIELDCODECDEFAULT20140403H
 
#include "../codecs2/field_codec_default.h"
 
namespace dccl
{
namespace v3
{
// all these are the same as version 2
template <typename WireType, typename FieldType = WireType>
using DefaultNumericFieldCodec = v2::DefaultNumericFieldCodec<WireType, FieldType>;
 
template <typename TimeType> using TimeCodec = v2::TimeCodec<TimeType>;
template <typename T> using StaticCodec = v2::StaticCodec<T>;
 
using DefaultBoolCodec = v2::DefaultBoolCodec;
using DefaultBytesCodec = v2::DefaultBytesCodec;
// Enum Codec is identical to v2, except when packed_enum is set to false.
 
class DefaultEnumCodec
    : public DefaultNumericFieldCodec<int32, const google::protobuf::EnumValueDescriptor*>
{
  public:
    int32 pre_encode(const google::protobuf::EnumValueDescriptor* const& field_value) override;
    const google::protobuf::EnumValueDescriptor* post_decode(const int32& wire_value) override;
    void validate() override {}
    std::size_t hash() override
    {
        return std::hash<std::string>{}(this_field()->enum_type()->DebugString());
    }
 
  private:
    double max() override;
    double min() override;
};
 
class DefaultStringCodec : public TypedFieldCodec<std::string>
{
  public:
    void validate() override;
    Bitset encode() override;
    Bitset encode(const std::string& wire_value) override;
    std::string decode(Bitset* bits) override;
    unsigned size() override;
    unsigned size(const std::string& wire_value) override;
    unsigned max_size() override;
    unsigned min_size() override;
};
 
} // namespace v3
} // namespace dccl
 
#endif