object_semantics.hxx

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/*
 * Copyright (C) 2024-2026 David C. Manuelda (StormBytePP)
 *
 * This file is part of StormByte.
 *
 * StormByte is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * or later, as published by the Free Software Foundation.
 *
 * StormByte 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 StormByte. If not, see
 * <https://www.gnu.org/licenses/lgpl-3.0.html>.
 */
 
#pragma once
 
#include <StormByte/type_traits/containers.hxx>
#include <StormByte/type_traits/ranges.hxx>
 
#include <type_traits>
 
namespace StormByte {
    namespace Type {
        namespace {
            template<typename T, typename = void>
            inline constexpr bool ReallyCopyConstructible =
                requires(const T& src) { T{src}; };
 
            template<typename T>
            inline constexpr bool ReallyCopyConstructible<
                T, std::enable_if_t<
                    Container<std::remove_cvref_t<T>> &&
                    !View<std::remove_cvref_t<T>>
                >
            > =
                requires(const T& src) { T{src}; } &&
                ReallyCopyConstructible<typename std::remove_cvref_t<T>::value_type>;
 
            template<typename T, typename = void>
            inline constexpr bool ReallyCopyAssignable =
                requires(T& dest, const T& src) { dest = src; };
 
            template<typename T>
            inline constexpr bool ReallyCopyAssignable<
                T, std::enable_if_t<
                    Container<std::remove_cvref_t<T>> &&
                    !View<std::remove_cvref_t<T>>
                >
            > =
                requires(T& dest, const T& src) { dest = src; } &&
                ReallyCopyAssignable<typename std::remove_cvref_t<T>::value_type>;
        }
 
        template<typename T>
        concept TriviallyCopyable = std::is_trivially_copyable_v<T>;
 
        template<typename T>
        concept TriviallyDestructible = std::is_trivially_destructible_v<T>;
 
        template<typename T>
        concept DefaultConstructible = std::is_default_constructible_v<T>;
 
        template<typename T>
        concept TriviallyDefaultConstructible = std::is_trivially_default_constructible_v<T>;
 
        template<typename T>
        concept CopyConstructible = ReallyCopyConstructible<T>;
 
        template<typename T>
        concept TriviallyCopyConstructible = std::is_trivially_copy_constructible_v<T>;
 
        template<typename T>
        concept CopyAssignable = ReallyCopyAssignable<T>;
 
        template<typename T>
        concept TriviallyCopyAssignable = std::is_trivially_copy_assignable_v<T>;
 
        template<typename T>
        concept MoveConstructible = std::is_move_constructible_v<T>;
 
        template<typename T>
        concept TriviallyMoveConstructible = std::is_trivially_move_constructible_v<T>;
 
        template<typename T>
        concept MoveAssignable = std::is_move_assignable_v<T>;
 
        template<typename T>
        concept TriviallyMoveAssignable = std::is_trivially_move_assignable_v<T>;
 
        template<typename T>
        concept Copyable = CopyConstructible<T> && CopyAssignable<T>;
 
        template<typename T>
        concept Movable = MoveConstructible<T> && MoveAssignable<T>;
 
        template<typename T>
        concept Swappable = std::is_swappable_v<T>;
    }
}