mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-22 18:32:05 +00:00
70 lines
3 KiB
C++
70 lines
3 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <vapours.hpp>
|
|
|
|
namespace ams::fssystem {
|
|
|
|
namespace impl {
|
|
|
|
template<typename T, size_t Size>
|
|
struct PimplHelper {
|
|
static void Construct(void *);
|
|
static void Destroy(void *);
|
|
};
|
|
|
|
}
|
|
|
|
template<typename T, size_t Size>
|
|
class Pimpl {
|
|
private:
|
|
#if defined(ATMOSPHERE_OS_HORIZON) || defined(ATMOSPHERE_OS_WINDOWS) || defined(ATMOSPHERE_OS_LINUX)
|
|
static constexpr size_t ExtraSizeToEnsureCompatibility = 0;
|
|
#elif defined(ATMOSPHERE_OS_MACOS)
|
|
static constexpr size_t ExtraSizeToEnsureCompatibility = 0x20;
|
|
#endif
|
|
|
|
static constexpr size_t StorageSize = Size + ExtraSizeToEnsureCompatibility;
|
|
private:
|
|
alignas(0x10) u8 m_storage[StorageSize];
|
|
public:
|
|
ALWAYS_INLINE Pimpl() { impl::PimplHelper<T, StorageSize>::Construct(m_storage); }
|
|
ALWAYS_INLINE ~Pimpl() { impl::PimplHelper<T, StorageSize>::Destroy(m_storage); }
|
|
|
|
ALWAYS_INLINE T *Get() { return reinterpret_cast<T *>(m_storage + 0); }
|
|
ALWAYS_INLINE T *operator->() { return reinterpret_cast<T *>(m_storage + 0); }
|
|
};
|
|
|
|
#define AMS_FSSYSTEM_ENABLE_PIMPL(_CLASSNAME_) \
|
|
namespace ams::fssystem::impl { \
|
|
\
|
|
template<size_t Size> \
|
|
struct PimplHelper<_CLASSNAME_, Size> { \
|
|
static ALWAYS_INLINE void Construct(void *p) { \
|
|
static_assert(sizeof(_CLASSNAME_) <= Size); \
|
|
static_assert(alignof(_CLASSNAME_) <= 0x10); \
|
|
\
|
|
std::construct_at(static_cast<_CLASSNAME_ *>(p)); \
|
|
} \
|
|
\
|
|
static ALWAYS_INLINE void Destroy(void *p) { \
|
|
std::destroy_at(static_cast<_CLASSNAME_ *>(p)); \
|
|
} \
|
|
}; \
|
|
\
|
|
}
|
|
|
|
}
|