LCOV - code coverage report
Current view: top level - usr/include/x86_64-linux-gnu/qt5/QtCore - qdebug.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 15 0.0 %
Date: 2016-11-29 15:07:43 Functions: 0 7 0.0 %

          Line data    Source code
       1             : /****************************************************************************
       2             : **
       3             : ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
       4             : ** Contact: http://www.qt-project.org/legal
       5             : **
       6             : ** This file is part of the QtCore module of the Qt Toolkit.
       7             : **
       8             : ** $QT_BEGIN_LICENSE:LGPL$
       9             : ** Commercial License Usage
      10             : ** Licensees holding valid commercial Qt licenses may use this file in
      11             : ** accordance with the commercial license agreement provided with the
      12             : ** Software or, alternatively, in accordance with the terms contained in
      13             : ** a written agreement between you and Digia.  For licensing terms and
      14             : ** conditions see http://qt.digia.com/licensing.  For further information
      15             : ** use the contact form at http://qt.digia.com/contact-us.
      16             : **
      17             : ** GNU Lesser General Public License Usage
      18             : ** Alternatively, this file may be used under the terms of the GNU Lesser
      19             : ** General Public License version 2.1 as published by the Free Software
      20             : ** Foundation and appearing in the file LICENSE.LGPL included in the
      21             : ** packaging of this file.  Please review the following information to
      22             : ** ensure the GNU Lesser General Public License version 2.1 requirements
      23             : ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
      24             : **
      25             : ** In addition, as a special exception, Digia gives you certain additional
      26             : ** rights.  These rights are described in the Digia Qt LGPL Exception
      27             : ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
      28             : **
      29             : ** GNU General Public License Usage
      30             : ** Alternatively, this file may be used under the terms of the GNU
      31             : ** General Public License version 3.0 as published by the Free Software
      32             : ** Foundation and appearing in the file LICENSE.GPL included in the
      33             : ** packaging of this file.  Please review the following information to
      34             : ** ensure the GNU General Public License version 3.0 requirements will be
      35             : ** met: http://www.gnu.org/copyleft/gpl.html.
      36             : **
      37             : **
      38             : ** $QT_END_LICENSE$
      39             : **
      40             : ****************************************************************************/
      41             : 
      42             : #ifndef QDEBUG_H
      43             : #define QDEBUG_H
      44             : 
      45             : #include <QtCore/qalgorithms.h>
      46             : #include <QtCore/qhash.h>
      47             : #include <QtCore/qlist.h>
      48             : #include <QtCore/qmap.h>
      49             : #include <QtCore/qpair.h>
      50             : #include <QtCore/qtextstream.h>
      51             : #include <QtCore/qstring.h>
      52             : #include <QtCore/qvector.h>
      53             : #include <QtCore/qset.h>
      54             : #include <QtCore/qcontiguouscache.h>
      55             : 
      56             : QT_BEGIN_NAMESPACE
      57             : 
      58             : 
      59             : class Q_CORE_EXPORT QDebug
      60             : {
      61             :     friend class QMessageLogger;
      62             :     friend class QDebugStateSaverPrivate;
      63           0 :     struct Stream {
      64             :         Stream(QIODevice *device) : ts(device), ref(1), type(QtDebugMsg), space(true), message_output(false) {}
      65             :         Stream(QString *string) : ts(string, QIODevice::WriteOnly), ref(1), type(QtDebugMsg), space(true), message_output(false) {}
      66             :         Stream(QtMsgType t) : ts(&buffer, QIODevice::WriteOnly), ref(1), type(t), space(true), message_output(true) {}
      67             :         QTextStream ts;
      68             :         QString buffer;
      69             :         int ref;
      70             :         QtMsgType type;
      71             :         bool space;
      72             :         bool message_output;
      73             :         QMessageLogContext context;
      74             :     } *stream;
      75             : public:
      76             :     inline QDebug(QIODevice *device) : stream(new Stream(device)) {}
      77             :     inline QDebug(QString *string) : stream(new Stream(string)) {}
      78             :     inline QDebug(QtMsgType t) : stream(new Stream(t)) {}
      79             :     inline QDebug(const QDebug &o):stream(o.stream) { ++stream->ref; }
      80             :     inline QDebug &operator=(const QDebug &other);
      81           0 :     inline ~QDebug() {
      82           0 :         if (!--stream->ref) {
      83           0 :             if (stream->space && stream->buffer.endsWith(QLatin1Char(' ')))
      84           0 :                 stream->buffer.chop(1);
      85           0 :             if (stream->message_output) {
      86             :                 QT_TRY {
      87             :                     qt_message_output(stream->type,
      88             :                                       stream->context,
      89           0 :                                       stream->buffer);
      90           0 :                 } QT_CATCH(std::bad_alloc&) { /* We're out of memory - give up. */ }
      91             :             }
      92           0 :             delete stream;
      93             :         }
      94           0 :     }
      95             :     inline void swap(QDebug &other) { qSwap(stream, other.stream); }
      96             : 
      97             :     inline QDebug &space() { stream->space = true; stream->ts << ' '; return *this; }
      98             :     inline QDebug &nospace() { stream->space = false; return *this; }
      99           0 :     inline QDebug &maybeSpace() { if (stream->space) stream->ts << ' '; return *this; }
     100             : 
     101             :     bool autoInsertSpaces() const { return stream->space; }
     102             :     void setAutoInsertSpaces(bool b) { stream->space = b; }
     103             : 
     104             :     inline QDebug &operator<<(QChar t) { stream->ts << '\'' << t << '\''; return maybeSpace(); }
     105           0 :     inline QDebug &operator<<(bool t) { stream->ts << (t ? "true" : "false"); return maybeSpace(); }
     106             :     inline QDebug &operator<<(char t) { stream->ts << t; return maybeSpace(); }
     107             :     inline QDebug &operator<<(signed short t) { stream->ts << t; return maybeSpace(); }
     108             :     inline QDebug &operator<<(unsigned short t) { stream->ts << t; return maybeSpace(); }
     109             :     inline QDebug &operator<<(signed int t) { stream->ts << t; return maybeSpace(); }
     110             :     inline QDebug &operator<<(unsigned int t) { stream->ts << t; return maybeSpace(); }
     111             :     inline QDebug &operator<<(signed long t) { stream->ts << t; return maybeSpace(); }
     112             :     inline QDebug &operator<<(unsigned long t) { stream->ts << t; return maybeSpace(); }
     113           0 :     inline QDebug &operator<<(qint64 t) { stream->ts << t; return maybeSpace(); }
     114             :     inline QDebug &operator<<(quint64 t) { stream->ts << t; return maybeSpace(); }
     115             :     inline QDebug &operator<<(float t) { stream->ts << t; return maybeSpace(); }
     116             :     inline QDebug &operator<<(double t) { stream->ts << t; return maybeSpace(); }
     117           0 :     inline QDebug &operator<<(const char* t) { stream->ts << QString::fromUtf8(t); return maybeSpace(); }
     118           0 :     inline QDebug &operator<<(const QString & t) { stream->ts << '\"' << t  << '\"'; return maybeSpace(); }
     119             :     inline QDebug &operator<<(const QStringRef & t) { return operator<<(t.toString()); }
     120             :     inline QDebug &operator<<(QLatin1String t) { stream->ts << '\"'  << t << '\"'; return maybeSpace(); }
     121             :     inline QDebug &operator<<(const QByteArray & t) { stream->ts  << '\"' << t << '\"'; return maybeSpace(); }
     122             :     inline QDebug &operator<<(const void * t) { stream->ts << t; return maybeSpace(); }
     123             :     inline QDebug &operator<<(QTextStreamFunction f) {
     124             :         stream->ts << f;
     125             :         return *this;
     126             :     }
     127             : 
     128             :     inline QDebug &operator<<(QTextStreamManipulator m)
     129             :     { stream->ts << m; return *this; }
     130             : };
     131             : 
     132             : Q_DECLARE_SHARED(QDebug)
     133             : 
     134             : class QDebugStateSaverPrivate;
     135             : class Q_CORE_EXPORT QDebugStateSaver
     136             : {
     137             : public:
     138             :     QDebugStateSaver(QDebug &dbg);
     139             :     ~QDebugStateSaver();
     140             : private:
     141             :     Q_DISABLE_COPY(QDebugStateSaver)
     142             :     QScopedPointer<QDebugStateSaverPrivate> d;
     143             : };
     144             : 
     145             : class QNoDebug
     146             : {
     147             : public:
     148             :     inline QNoDebug &operator<<(QTextStreamFunction) { return *this; }
     149             :     inline QNoDebug &operator<<(QTextStreamManipulator) { return *this; }
     150             :     inline QNoDebug &space() { return *this; }
     151             :     inline QNoDebug &nospace() { return *this; }
     152             :     inline QNoDebug &maybeSpace() { return *this; }
     153             : 
     154             :     template<typename T>
     155             :     inline QNoDebug &operator<<(const T &) { return *this; }
     156             : };
     157             : 
     158             : inline QDebug &QDebug::operator=(const QDebug &other)
     159             : {
     160             :     if (this != &other) {
     161             :         QDebug copy(other);
     162             :         qSwap(stream, copy.stream);
     163             :     }
     164             :     return *this;
     165             : }
     166             : 
     167             : #if defined(FORCE_UREF)
     168             : template <class T>
     169             : inline QDebug &operator<<(QDebug debug, const QList<T> &list)
     170             : #else
     171             : template <class T>
     172             : inline QDebug operator<<(QDebug debug, const QList<T> &list)
     173             : #endif
     174             : {
     175             :     const bool oldSetting = debug.autoInsertSpaces();
     176             :     debug.nospace() << '(';
     177             :     for (typename QList<T>::size_type i = 0; i < list.count(); ++i) {
     178             :         if (i)
     179             :             debug << ", ";
     180             :         debug << list.at(i);
     181             :     }
     182             :     debug << ')';
     183             :     debug.setAutoInsertSpaces(oldSetting);
     184             :     return debug.maybeSpace();
     185             : }
     186             : 
     187             : #if defined(FORCE_UREF)
     188             : template <typename T>
     189             : inline QDebug &operator<<(QDebug debug, const QVector<T> &vec)
     190             : #else
     191             : template <typename T>
     192             : inline QDebug operator<<(QDebug debug, const QVector<T> &vec)
     193             : #endif
     194             : {
     195             :     const bool oldSetting = debug.autoInsertSpaces();
     196             :     debug.nospace() << "QVector";
     197             :     debug.setAutoInsertSpaces(oldSetting);
     198             :     return operator<<(debug, vec.toList());
     199             : }
     200             : 
     201             : #if defined(FORCE_UREF)
     202             : template <class aKey, class aT>
     203             : inline QDebug &operator<<(QDebug debug, const QMap<aKey, aT> &map)
     204             : #else
     205             : template <class aKey, class aT>
     206             : inline QDebug operator<<(QDebug debug, const QMap<aKey, aT> &map)
     207             : #endif
     208             : {
     209             :     const bool oldSetting = debug.autoInsertSpaces();
     210             :     debug.nospace() << "QMap(";
     211             :     for (typename QMap<aKey, aT>::const_iterator it = map.constBegin();
     212             :          it != map.constEnd(); ++it) {
     213             :         debug << '(' << it.key() << ", " << it.value() << ')';
     214             :     }
     215             :     debug << ')';
     216             :     debug.setAutoInsertSpaces(oldSetting);
     217             :     return debug.maybeSpace();
     218             : }
     219             : 
     220             : #if defined(FORCE_UREF)
     221             : template <class aKey, class aT>
     222             : inline QDebug &operator<<(QDebug debug, const QHash<aKey, aT> &hash)
     223             : #else
     224             : template <class aKey, class aT>
     225             : inline QDebug operator<<(QDebug debug, const QHash<aKey, aT> &hash)
     226             : #endif
     227             : {
     228             :     const bool oldSetting = debug.autoInsertSpaces();
     229             :     debug.nospace() << "QHash(";
     230             :     for (typename QHash<aKey, aT>::const_iterator it = hash.constBegin();
     231             :             it != hash.constEnd(); ++it)
     232             :         debug << '(' << it.key() << ", " << it.value() << ')';
     233             :     debug << ')';
     234             :     debug.setAutoInsertSpaces(oldSetting);
     235             :     return debug.maybeSpace();
     236             : }
     237             : 
     238             : #if defined(FORCE_UREF)
     239             : template <class T1, class T2>
     240             : inline QDebug &operator<<(QDebug debug, const QPair<T1, T2> &pair)
     241             : #else
     242             : template <class T1, class T2>
     243             : inline QDebug operator<<(QDebug debug, const QPair<T1, T2> &pair)
     244             : #endif
     245             : {
     246             :     const bool oldSetting = debug.autoInsertSpaces();
     247             :     debug.nospace() << "QPair(" << pair.first << ',' << pair.second << ')';
     248             :     debug.setAutoInsertSpaces(oldSetting);
     249             :     return debug.maybeSpace();
     250             : }
     251             : 
     252             : template <typename T>
     253             : inline QDebug operator<<(QDebug debug, const QSet<T> &set)
     254             : {
     255             :     const bool oldSetting = debug.autoInsertSpaces();
     256             :     debug.nospace() << "QSet";
     257             :     debug.setAutoInsertSpaces(oldSetting);
     258             :     return operator<<(debug, set.toList());
     259             : }
     260             : 
     261             : #if defined(FORCE_UREF)
     262             : template <class T>
     263             : inline QDebug &operator<<(QDebug debug, const QContiguousCache<T> &cache)
     264             : #else
     265             : template <class T>
     266             : inline QDebug operator<<(QDebug debug, const QContiguousCache<T> &cache)
     267             : #endif
     268             : {
     269             :     const bool oldSetting = debug.autoInsertSpaces();
     270             :     debug.nospace() << "QContiguousCache(";
     271             :     for (int i = cache.firstIndex(); i <= cache.lastIndex(); ++i) {
     272             :         debug << cache[i];
     273             :         if (i != cache.lastIndex())
     274             :             debug << ", ";
     275             :     }
     276             :     debug << ')';
     277             :     debug.setAutoInsertSpaces(oldSetting);
     278             :     return debug.maybeSpace();
     279             : }
     280             : 
     281             : #if defined(FORCE_UREF)
     282             : template <class T>
     283             : inline QDebug &operator<<(QDebug debug, const QFlags<T> &flags)
     284             : #else
     285             : template <class T>
     286             : inline QDebug operator<<(QDebug debug, const QFlags<T> &flags)
     287             : #endif
     288             : {
     289             :     const bool oldSetting = debug.autoInsertSpaces();
     290             :     debug.nospace() << "QFlags(";
     291             :     bool needSeparator = false;
     292             :     for (uint i = 0; i < sizeof(T) * 8; ++i) {
     293             :         if (flags.testFlag(T(1 << i))) {
     294             :             if (needSeparator)
     295             :                 debug.nospace() << '|';
     296             :             else
     297             :                 needSeparator = true;
     298             :             debug.nospace() << "0x" << QByteArray::number(typename QFlags<T>::Int(1) << i, 16).constData();
     299             :         }
     300             :     }
     301             :     debug << ')';
     302             :     debug.setAutoInsertSpaces(oldSetting);
     303             :     return debug.maybeSpace();
     304             : }
     305             : 
     306             : QT_END_NAMESPACE
     307             : 
     308             : #endif // QDEBUG_H

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