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Diffstat (limited to 'src/corelib/io/qdebug.h')
| -rw-r--r-- | src/corelib/io/qdebug.h | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/corelib/io/qdebug.h b/src/corelib/io/qdebug.h new file mode 100644 index 0000000000..8334146d30 --- /dev/null +++ b/src/corelib/io/qdebug.h @@ -0,0 +1,262 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDEBUG_H +#define QDEBUG_H + +#include <QtCore/qalgorithms.h> +#include <QtCore/qhash.h> +#include <QtCore/qlist.h> +#include <QtCore/qmap.h> +#include <QtCore/qpair.h> +#include <QtCore/qtextstream.h> +#include <QtCore/qstring.h> +#include <QtCore/qvector.h> +#include <QtCore/qset.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Core) + +class Q_CORE_EXPORT QDebug +{ + struct Stream { + Stream(QIODevice *device) : ts(device), ref(1), type(QtDebugMsg), space(true), message_output(false) {} + Stream(QString *string) : ts(string, QIODevice::WriteOnly), ref(1), type(QtDebugMsg), space(true), message_output(false) {} + Stream(QtMsgType t) : ts(&buffer, QIODevice::WriteOnly), ref(1), type(t), space(true), message_output(true) {} + QTextStream ts; + QString buffer; + int ref; + QtMsgType type; + bool space; + bool message_output; + } *stream; +public: + inline QDebug(QIODevice *device) : stream(new Stream(device)) {} + inline QDebug(QString *string) : stream(new Stream(string)) {} + inline QDebug(QtMsgType t) : stream(new Stream(t)) {} + inline QDebug(const QDebug &o):stream(o.stream) { ++stream->ref; } + inline QDebug &operator=(const QDebug &other); + inline ~QDebug() { + if (!--stream->ref) { + if(stream->message_output) + qt_message_output(stream->type, stream->buffer.toLocal8Bit().data()); + delete stream; + } + } + inline QDebug &space() { stream->space = true; stream->ts << " "; return *this; } + inline QDebug &nospace() { stream->space = false; return *this; } + inline QDebug &maybeSpace() { if (stream->space) stream->ts << " "; return *this; } + + inline QDebug &operator<<(QChar t) { stream->ts << "\'" << t << "\'"; return maybeSpace(); } + inline QDebug &operator<<(QBool t) { stream->ts << (bool(t) ? "true" : "false"); return maybeSpace(); } + inline QDebug &operator<<(bool t) { stream->ts << (t ? "true" : "false"); return maybeSpace(); } + inline QDebug &operator<<(char t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(signed short t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(unsigned short t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(signed int t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(unsigned int t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(signed long t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(unsigned long t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(qint64 t) + { stream->ts << QString::number(t); return maybeSpace(); } + inline QDebug &operator<<(quint64 t) + { stream->ts << QString::number(t); return maybeSpace(); } + inline QDebug &operator<<(float t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(double t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(const char* t) { stream->ts << QString::fromAscii(t); return maybeSpace(); } + inline QDebug &operator<<(const QString & t) { stream->ts << "\"" << t << "\""; return maybeSpace(); } + inline QDebug &operator<<(const QStringRef & t) { return operator<<(t.toString()); } + inline QDebug &operator<<(const QLatin1String &t) { stream->ts << "\"" << t.latin1() << "\""; return maybeSpace(); } + inline QDebug &operator<<(const QByteArray & t) { stream->ts << "\"" << t << "\""; return maybeSpace(); } + inline QDebug &operator<<(const void * t) { stream->ts << t; return maybeSpace(); } + inline QDebug &operator<<(QTextStreamFunction f) { + stream->ts << f; + return *this; + } + + inline QDebug &operator<<(QTextStreamManipulator m) + { stream->ts << m; return *this; } +}; + +class QNoDebug +{ +public: + inline QNoDebug(){} + inline QNoDebug(const QDebug &){} + inline ~QNoDebug(){} +#if !defined( QT_NO_TEXTSTREAM ) + inline QNoDebug &operator<<(QTextStreamFunction) { return *this; } + inline QNoDebug &operator<<(QTextStreamManipulator) { return *this; } +#endif + inline QNoDebug &space() { return *this; } + inline QNoDebug &nospace() { return *this; } + inline QNoDebug &maybeSpace() { return *this; } + +#ifndef QT_NO_MEMBER_TEMPLATES + template<typename T> + inline QNoDebug &operator<<(const T &) { return *this; } +#endif +}; + +Q_CORE_EXPORT_INLINE QDebug qCritical() { return QDebug(QtCriticalMsg); } + +inline QDebug &QDebug::operator=(const QDebug &other) +{ + if (this != &other) { + QDebug copy(other); + qSwap(stream, copy.stream); + } + return *this; +} + +#if defined(FORCE_UREF) +template <class T> +inline QDebug &operator<<(QDebug debug, const QList<T> &list) +#else +template <class T> +inline QDebug operator<<(QDebug debug, const QList<T> &list) +#endif +{ + debug.nospace() << "("; + for (Q_TYPENAME QList<T>::size_type i = 0; i < list.count(); ++i) { + if (i) + debug << ", "; + debug << list.at(i); + } + debug << ")"; + return debug.space(); +} + +#if defined(FORCE_UREF) +template <typename T> +inline QDebug &operator<<(QDebug debug, const QVector<T> &vec) +#else +template <typename T> +inline QDebug operator<<(QDebug debug, const QVector<T> &vec) +#endif +{ + debug.nospace() << "QVector"; + return operator<<(debug, vec.toList()); +} + +#if defined(FORCE_UREF) +template <class aKey, class aT> +inline QDebug &operator<<(QDebug debug, const QMap<aKey, aT> &map) +#else +template <class aKey, class aT> +inline QDebug operator<<(QDebug debug, const QMap<aKey, aT> &map) +#endif +{ + debug.nospace() << "QMap("; + for (typename QMap<aKey, aT>::const_iterator it = map.constBegin(); + it != map.constEnd(); ++it) { + debug << "(" << it.key() << ", " << it.value() << ")"; + } + debug << ")"; + return debug.space(); +} + +#if defined(FORCE_UREF) +template <class aKey, class aT> +inline QDebug &operator<<(QDebug debug, const QHash<aKey, aT> &hash) +#else +template <class aKey, class aT> +inline QDebug operator<<(QDebug debug, const QHash<aKey, aT> &hash) +#endif +{ + debug.nospace() << "QHash("; + for (typename QHash<aKey, aT>::const_iterator it = hash.constBegin(); + it != hash.constEnd(); ++it) + debug << "(" << it.key() << ", " << it.value() << ")"; + debug << ")"; + return debug.space(); +} + +#if defined(FORCE_UREF) +template <class T1, class T2> +inline QDebug &operator<<(QDebug debug, const QPair<T1, T2> &pair) +#else +template <class T1, class T2> +inline QDebug operator<<(QDebug debug, const QPair<T1, T2> &pair) +#endif +{ + debug.nospace() << "QPair(" << pair.first << "," << pair.second << ")"; + return debug.space(); +} + +template <typename T> +inline QDebug operator<<(QDebug debug, const QSet<T> &set) +{ + debug.nospace() << "QSet"; + return operator<<(debug, set.toList()); +} + +#if !defined(QT_NO_DEBUG_STREAM) +Q_CORE_EXPORT_INLINE QDebug qDebug() { return QDebug(QtDebugMsg); } + +#else // QT_NO_DEBUG_STREAM +#undef qDebug +inline QNoDebug qDebug() { return QNoDebug(); } +#define qDebug QT_NO_QDEBUG_MACRO + +#ifdef QT_NO_MEMBER_TEMPLATES +template<typename T> +inline QNoDebug operator<<(QNoDebug debug, const T &) { return debug; } +#endif + +#endif + +#if !defined(QT_NO_WARNING_OUTPUT) +Q_CORE_EXPORT_INLINE QDebug qWarning() { return QDebug(QtWarningMsg); } +#else +#undef qWarning +inline QNoDebug qWarning() { return QNoDebug(); } +#define qWarning QT_NO_QWARNING_MACRO +#endif + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QDEBUG_H |