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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTCORE_QEXCEPTION_H
#define QTCORE_QEXCEPTION_H
#include <QtCore/qatomic.h>
#include <QtCore/qshareddata.h>
#ifndef QT_NO_EXCEPTIONS
# include <exception>
#endif
QT_REQUIRE_CONFIG(future);
QT_BEGIN_NAMESPACE
#if !defined(QT_NO_EXCEPTIONS) || defined(Q_CLANG_QDOC)
class Q_CORE_EXPORT QException : public std::exception
{
public:
~QException() noexcept;
virtual void raise() const;
virtual QException *clone() const;
};
class QUnhandledExceptionPrivate;
class Q_CORE_EXPORT QUnhandledException final : public QException
{
public:
QUnhandledException(std::exception_ptr exception = nullptr) noexcept;
~QUnhandledException() noexcept override;
QUnhandledException(QUnhandledException &&other) noexcept;
QUnhandledException(const QUnhandledException &other) noexcept;
void swap(QUnhandledException &other) noexcept { d.swap(other.d); }
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QUnhandledException)
QUnhandledException &operator=(const QUnhandledException &other) noexcept;
void raise() const override;
QUnhandledException *clone() const override;
std::exception_ptr exception() const;
private:
QSharedDataPointer<QUnhandledExceptionPrivate> d;
};
namespace QtPrivate {
class Q_CORE_EXPORT ExceptionStore
{
public:
void setException(const QException &e);
void setException(std::exception_ptr e);
bool hasException() const;
std::exception_ptr exception() const;
void throwPossibleException();
Q_NORETURN void rethrowException() const;
std::exception_ptr exceptionHolder;
};
} // namespace QtPrivate
#else // QT_NO_EXCEPTIONS
namespace QtPrivate {
class Q_CORE_EXPORT ExceptionStore
{
public:
ExceptionStore() { }
inline void throwPossibleException() {}
inline void rethrowException() const { }
};
} // namespace QtPrivate
#endif // QT_NO_EXCEPTIONS
QT_END_NAMESPACE
#endif
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