Concat.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "TypeList.hpp"
 
#include <type_traits>
 
namespace CeresEngine::MPL {
 
    template<typename...> struct ConcatHelper { using type = TypeList<>; };
 
    template<typename... TTypeLists> using Concat = typename ConcatHelper<TTypeLists...>::type;
 
    template<typename... Ts> struct ConcatHelper<TypeList<Ts...>> { using type = TypeList<Ts...>; };
 
    template<typename... Ts0, typename... Ts1, typename... TRest> struct ConcatHelper<TypeList<Ts0...>, TypeList<Ts1...>, TRest...> {
        using type = Concat<TypeList<Ts0..., Ts1...>, TRest...>;
    };
 
} // namespace CeresEngine::MPL