FieldBase.h

//
// Copyright 2015 - 2026 (C). Alex Robenko. All rights reserved.
//
// SPDX-License-Identifier: MPL-2.0
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
#pragma once
 
#include "comms/options.h"
#include "comms/traits.h"
 
namespace comms
{
 
namespace details
{
 
template <typename... TOptions>
class FieldBase;
 
template <>
class FieldBase<>
{
protected:
    // Use big endian by default
    using Endian = comms::traits::endian::Big;
 
    // Use unsigned type by default for versioning
    using VersionType = unsigned;
};
 
template <typename TEndian, typename... TOptions>
class FieldBase<comms::option::def::Endian<TEndian>, TOptions...> : public FieldBase<TOptions...>
{
protected:
    using Endian = TEndian;
};
 
template <typename T, typename... TOptions>
class FieldBase<comms::option::def::VersionType<T>, TOptions...> : public FieldBase<TOptions...>
{
protected:
    using VersionType = T;
};
 
template <typename... TOptions>
class FieldBase<comms::option::app::EmptyOption, TOptions...> : public FieldBase<TOptions...>
{
};
 
template <typename... TTuple, typename... TOptions>
class FieldBase<std::tuple<TTuple...>, TOptions...> : public FieldBase<TTuple..., TOptions...>
{
};
 
}  // namespace details
 
}  // namespace comms