| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
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| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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() |
| #ifdef Q_COMPILER_NOEXCEPT |
| noexcept |
| #else |
| throw() |
| #endif |
| ; |
| virtual void raise() const; |
| virtual QException *clone() const; |
| }; |
| |
| class Q_CORE_EXPORT QUnhandledException : public QException |
| { |
| public: |
| ~QUnhandledException() |
| #ifdef Q_COMPILER_NOEXCEPT |
| noexcept |
| #else |
| throw() |
| #endif |
| ; |
| void raise() const override; |
| QUnhandledException *clone() const override; |
| }; |
| |
| namespace QtPrivate { |
| |
| class Base; |
| class Q_CORE_EXPORT ExceptionHolder |
| { |
| public: |
| ExceptionHolder(QException *exception = nullptr); |
| ExceptionHolder(const ExceptionHolder &other); |
| void operator=(const ExceptionHolder &other); // ### Qt6: copy-assign operator shouldn't return void. Remove this method and the copy-ctor, they are unneeded. |
| ~ExceptionHolder(); |
| QException *exception() const; |
| QExplicitlySharedDataPointer<Base> base; |
| }; |
| |
| class Q_CORE_EXPORT ExceptionStore |
| { |
| public: |
| void setException(const QException &e); |
| bool hasException() const; |
| ExceptionHolder exception(); |
| void throwPossibleException(); |
| bool hasThrown() const; |
| ExceptionHolder exceptionHolder; |
| }; |
| |
| } // namespace QtPrivate |
| |
| #else // QT_NO_EXCEPTIONS |
| |
| namespace QtPrivate { |
| |
| class Q_CORE_EXPORT ExceptionStore |
| { |
| public: |
| ExceptionStore() { } |
| inline void throwPossibleException() {} |
| }; |
| |
| } // namespace QtPrivate |
| |
| #endif // QT_NO_EXCEPTIONS |
| |
| QT_END_NAMESPACE |
| |
| #endif |