mirror of
https://git.libcamera.org/libcamera/libcamera.git
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0701f756b9
Remove the verbose #ifndef/#define/#endif pattern for maintaining header idempotency, and replace it with a simple #pragma once. This simplifies the headers, and prevents redundant changes when header files get moved. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
109 lines
2 KiB
C++
109 lines
2 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* class.h - Utilities and helpers for classes
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*/
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#pragma once
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#include <memory>
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namespace libcamera {
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#ifndef __DOXYGEN__
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#define LIBCAMERA_DISABLE_COPY(klass) \
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klass(const klass &) = delete; \
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klass &operator=(const klass &) = delete;
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#define LIBCAMERA_DISABLE_MOVE(klass) \
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klass(klass &&) = delete; \
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klass &operator=(klass &&) = delete;
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#define LIBCAMERA_DISABLE_COPY_AND_MOVE(klass) \
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LIBCAMERA_DISABLE_COPY(klass) \
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LIBCAMERA_DISABLE_MOVE(klass)
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#else
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#define LIBCAMERA_DISABLE_COPY(klass)
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#define LIBCAMERA_DISABLE_MOVE(klass)
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#define LIBCAMERA_DISABLE_COPY_AND_MOVE(klass)
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#endif
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#ifndef __DOXYGEN__
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#define LIBCAMERA_DECLARE_PRIVATE() \
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public: \
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class Private; \
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friend class Private; \
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template <bool B = true> \
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const Private *_d() const \
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{ \
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return Extensible::_d<Private>(); \
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} \
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template <bool B = true> \
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Private *_d() \
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{ \
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return Extensible::_d<Private>(); \
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}
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#define LIBCAMERA_DECLARE_PUBLIC(klass) \
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friend class klass; \
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using Public = klass;
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#define LIBCAMERA_O_PTR() \
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_o<Public>()
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#else
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#define LIBCAMERA_DECLARE_PRIVATE()
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#define LIBCAMERA_DECLARE_PUBLIC(klass)
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#define LIBCAMERA_O_PTR()
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#endif
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class Extensible
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{
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public:
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class Private
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{
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public:
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Private();
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virtual ~Private();
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#ifndef __DOXYGEN__
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template<typename T>
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const T *_o() const
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{
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return static_cast<const T *>(o_);
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}
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template<typename T>
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T *_o()
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{
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return static_cast<T *>(o_);
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}
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#endif
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private:
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/* To initialize o_ from Extensible. */
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friend class Extensible;
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Extensible *const o_;
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};
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Extensible(std::unique_ptr<Private> d);
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protected:
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template<typename T>
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const T *_d() const
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{
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return static_cast<const T *>(d_.get());
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}
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template<typename T>
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T *_d()
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{
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return static_cast<T *>(d_.get());
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}
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private:
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const std::unique_ptr<Private> d_;
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};
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} /* namespace libcamera */
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