ladybird/AK/Noncopyable.h

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/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#define AK_MAKE_NONCOPYABLE(c) \
private: \
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c(c const&) = delete; \
c& operator=(c const&) = delete
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#define AK_MAKE_NONMOVABLE(c) \
private: \
c(c&&) = delete; \
c& operator=(c&&) = delete
#define AK_MAKE_DEFAULT_MOVABLE(c) \
public: \
c(c&&) = default; \
c& operator=(c&&) = default
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#define AK_MAKE_DEFAULT_COPYABLE(c) \
public: \
c(c const&) = default; \
c& operator=(c const&) = default
#define AK_MAKE_CONDITIONALLY_NONMOVABLE(c, ...) \
public: \
c(c&&) \
requires(!(AK::Detail::IsMoveConstructible __VA_ARGS__)) \
= delete; \
c& operator=(c&&) \
requires(!(AK::Detail::IsMoveConstructible __VA_ARGS__) \
|| !(AK::Detail::IsDestructible __VA_ARGS__)) \
= delete
#define AK_MAKE_CONDITIONALLY_MOVABLE(c, T) \
AK_MAKE_CONDITIONALLY_NONMOVABLE(c, T); \
c(c&&) = default; \
c& operator=(c&&) = default
#define AK_MAKE_CONDITIONALLY_NONCOPYABLE(c, ...) \
public: \
c(c const&) \
requires(!(AK::Detail::IsCopyConstructible __VA_ARGS__)) \
= delete; \
c& operator=(c const&) \
requires(!(AK::Detail::IsCopyConstructible __VA_ARGS__) \
|| !(AK::Detail::IsDestructible __VA_ARGS__)) \
= delete
#define AK_MAKE_CONDITIONALLY_COPYABLE(c, ...) \
AK_MAKE_CONDITIONALLY_NONCOPYABLE(c, __VA_ARGS__); \
c(c const&) = default; \
c& operator=(c const&) = default
#define AK_MAKE_CONDITIONALLY_NONDESTRUCTIBLE(c, ...) \
public: \
~c() \
requires(!(AK::Detail::IsDestructible __VA_ARGS__)) \
= delete
#define AK_MAKE_CONDITIONALLY_DESTRUCTIBLE(c, ...) \
public: \
~c() \
requires(!(AK::Detail::IsDestructible __VA_ARGS__)) \
= delete; \
~c() = default