TupleAsString.h

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/** @noop License Comment
 *  @file
 *  @copyright
 *  This Source Code is subject to the terms of the Mozilla Public License, v2.0.
 *  If a copy of the MPL was not distributed with this file You can obtain one at
 *  https://mozilla.org/MPL/2.0/
 *  
 *  @author David Mórász
 *  @date 2025
 */
 
#pragma once
#include "CoreMinimal.h"
 
#include "Mcro/Text.h"
#include "Mcro/Tuples.h"
 
namespace Mcro::Text
{
    using namespace Mcro::Tuples;
 
    /** @brief Convert Unreal/STL/Range-V3 tuples to string the following way: `(Item0, Item1, Item2, ...)`*/
    template <CTuple Operand>
    struct TAsFormatArgument<Operand>
    {
        template <typename Tuple, size_t... Indices>
        static FString Render(Tuple const& tuple, std::index_sequence<Indices...>&&)
        {
            auto body = Join(TEXT_", ", AsString(GetItem<Indices>(tuple))...);
            return TEXT_"(" + body + TEXT_")";
        }
        static FString Render(Tuple const& tuple, std::index_sequence<Indices...>&&) {…}
        
        template <CConvertibleToDecayed<Operand> Arg>
        FString operator () (Arg&& left) const
        {
            return Render(left, TIndexSequenceForTuple<Operand>());
        }
        FString operator () (Arg&& left) const {…}
    };
    struct TAsFormatArgument<Operand> {…};
}