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QtWidgets: use Q_UNLIKELY for every qWarning() (1)

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If, after checking a condition, we issue a qWarning(),
by definition that check is unlikely to be true.

Tell the compiler so it can move the error handling
code out of the normal code path to increase the
effective icache size.

This change contains the changes to the util/,
dialogs/ and widgets/ subdirs.

Moved conditional code around where possible so that
we could always use Q_UNLIKELY, instead of having to
revert to Q_LIKELY here and there.

In QSystemTrayIcon::setVisible(), as a drive-by, I
swapped the evaluation order of an &&-expression
(newly wrapped in Q_UNLIKELY) to be more readable
and more efficient (cheaper check first) at the same
time.

Change-Id: I3564c5a5deacba49d67d3989fb0b53e680c57fcb
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This commit is contained in:
Marc Mutz 2015-11-12 10:16:22 +01:00
parent f5a650735e
commit 496823b9a8
33 changed files with 99 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/widgets/dialogs/qdialog.cpp
View File

@ -516,7 +516,7 @@ int QDialog::exec()
{
Q_D(QDialog);
if (d->eventLoop) {
if (Q_UNLIKELY(d->eventLoop)) {
qWarning("QDialog::exec: Recursive call detected");
return -1;
}

2
src/widgets/dialogs/qfiledialog.cpp
View File

@ -976,7 +976,7 @@ void QFileDialog::setDirectoryUrl(const QUrl &directory)
d->setDirectory_sys(directory);
else if (directory.isLocalFile())
setDirectory(directory.toLocalFile());
else if (d->usingWidgets())
else if (Q_UNLIKELY(d->usingWidgets()))
qWarning("Non-native QFileDialog supports only local files");
}

10
src/widgets/dialogs/qprogressdialog.cpp
View File

@ -353,7 +353,7 @@ void QProgressDialog::setLabel(QLabel *label)
{
Q_D(QProgressDialog);
if (label == d->label) {
if (label)
if (Q_UNLIKELY(label))
qWarning("QProgressDialog::setLabel: Attempt to set the same label again");
return;
}
@ -402,7 +402,7 @@ void QProgressDialog::setCancelButton(QPushButton *cancelButton)
{
Q_D(QProgressDialog);
if (d->cancel == cancelButton) {
if (cancelButton)
if (Q_UNLIKELY(cancelButton))
qWarning("QProgressDialog::setCancelButton: Attempt to set the same button again");
return;
}
@ -465,16 +465,16 @@ void QProgressDialogPrivate::setCancelButtonText(const QString &cancelButtonText
void QProgressDialog::setBar(QProgressBar *bar)
{
Q_D(QProgressDialog);
if (!bar) {
if (Q_UNLIKELY(!bar)) {
qWarning("QProgressDialog::setBar: Cannot set a null progress bar");
return;
}
#ifndef QT_NO_DEBUG
if (value() > 0)
if (Q_UNLIKELY(value() > 0))
qWarning("QProgressDialog::setBar: Cannot set a new progress bar "
"while the old one is active");
#endif
if (bar == d->bar) {
if (Q_UNLIKELY(bar == d->bar)) {
qWarning("QProgressDialog::setBar: Attempt to set the same progress bar again");
return;
}

38
src/widgets/dialogs/qwizard.cpp
View File

@ -799,7 +799,7 @@ void QWizardPrivate::addField(const QWizardField &field)
QWizardField myField = field;
myField.resolve(defaultPropertyTable);
if (fieldIndexMap.contains(myField.name)) {
if (Q_UNLIKELY(fieldIndexMap.contains(myField.name))) {
qWarning("QWizardPage::addField: Duplicate field '%ls'", qUtf16Printable(myField.name));
return;
}
@ -2256,17 +2256,17 @@ void QWizard::setPage(int theid, QWizardPage *page)
{
Q_D(QWizard);
if (!page) {
if (Q_UNLIKELY(!page)) {
qWarning("QWizard::setPage: Cannot insert null page");
return;
}
if (theid == -1) {
if (Q_UNLIKELY(theid == -1)) {
qWarning("QWizard::setPage: Cannot insert page with ID -1");
return;
}
if (d->pageMap.contains(theid)) {
if (Q_UNLIKELY(d->pageMap.contains(theid))) {
qWarning("QWizard::setPage: Page with duplicate ID %d ignored", theid);
return;
}
@ -2450,7 +2450,7 @@ void QWizard::setStartId(int theid)
return;
}
if (!d->pageMap.contains(newStart)) {
if (Q_UNLIKELY(!d->pageMap.contains(newStart))) {
qWarning("QWizard::setStartId: Invalid page ID %d", newStart);
return;
}
@ -2508,15 +2508,15 @@ void QWizard::setField(const QString &name, const QVariant &value)
Q_D(QWizard);
int index = d->fieldIndexMap.value(name, -1);
if (index != -1) {
const QWizardField &field = d->fields.at(index);
if (!field.object->setProperty(field.property, value))
qWarning("QWizard::setField: Couldn't write to property '%s'",
field.property.constData());
if (Q_UNLIKELY(index == -1)) {
qWarning("QWizard::setField: No such field '%ls'", qUtf16Printable(name));
return;
}
qWarning("QWizard::setField: No such field '%ls'", qUtf16Printable(name));
const QWizardField &field = d->fields.at(index);
if (Q_UNLIKELY(!field.object->setProperty(field.property, value)))
qWarning("QWizard::setField: Couldn't write to property '%s'",
field.property.constData());
}
/*!
@ -2531,15 +2531,15 @@ QVariant QWizard::field(const QString &name) const
Q_D(const QWizard);
int index = d->fieldIndexMap.value(name, -1);
if (index != -1) {
const QWizardField &field = d->fields.at(index);
return field.object->property(field.property);
}
if (Q_UNLIKELY(index == -1)) {
qWarning("QWizard::field: No such field '%ls'", qUtf16Printable(name));
return QVariant();
}
const QWizardField &field = d->fields.at(index);
return field.object->property(field.property);
}
/*!
\property QWizard::wizardStyle
\brief the look and feel of the wizard
@ -2763,7 +2763,7 @@ void QWizard::setButtonLayout(const QList<WizardButton> &layout)
// O(n^2), but n is very small
for (int j = 0; j < i; ++j) {
WizardButton button2 = layout.at(j);
if (button2 == button1) {
if (Q_UNLIKELY(button2 == button1)) {
qWarning("QWizard::setButtonLayout: Duplicate button in layout");
return;
}
@ -3140,11 +3140,11 @@ void QWizard::next()
if (validateCurrentPage()) {
int next = nextId();
if (next != -1) {
if (d->history.contains(next)) {
if (Q_UNLIKELY(d->history.contains(next))) {
qWarning("QWizard::next: Page %d already met", next);
return;
}
if (!d->pageMap.contains(next)) {
if (Q_UNLIKELY(!d->pageMap.contains(next))) {
qWarning("QWizard::next: No such page %d", next);
return;
}

2
src/widgets/util/qcolormap.cpp
View File

@ -58,7 +58,7 @@ static QColormapPrivate *screenMap = 0;
void QColormap::initialize()
{
screenMap = new QColormapPrivate;
if (!QGuiApplication::primaryScreen()) {
if (Q_UNLIKELY(!QGuiApplication::primaryScreen())) {
qWarning("no screens available, assuming 24-bit color");
screenMap->depth = 24;
screenMap->mode = QColormap::Direct;

8
src/widgets/util/qcompleter.cpp
View File

@ -1144,9 +1144,9 @@ void QCompleter::setFilterMode(Qt::MatchFlags filterMode)
if (d->filterMode == filterMode)
return;
if (filterMode != Qt::MatchStartsWith
&& filterMode != Qt::MatchContains
&& filterMode != Qt::MatchEndsWith) {
if (Q_UNLIKELY(filterMode != Qt::MatchStartsWith &&
filterMode != Qt::MatchContains &&
filterMode != Qt::MatchEndsWith)) {
qWarning("Unhandled QCompleter::filterMode flag is used.");
return;
}
@ -1641,7 +1641,7 @@ int QCompleter::maxVisibleItems() const
void QCompleter::setMaxVisibleItems(int maxItems)
{
Q_D(QCompleter);
if (maxItems < 0) {
if (Q_UNLIKELY(maxItems < 0)) {
qWarning("QCompleter::setMaxVisibleItems: "
"Invalid max visible items (%d) must be >= 0", maxItems);
return;

4
src/widgets/util/qscroller.cpp
View File

@ -159,8 +159,8 @@ static qreal differentialForProgress(const QEasingCurve &curve, qreal pos)
static qreal progressForValue(const QEasingCurve &curve, qreal value)
{
if (curve.type() >= QEasingCurve::InElastic &&
curve.type() < QEasingCurve::Custom) {
if (Q_UNLIKELY(curve.type() >= QEasingCurve::InElastic &&
curve.type() < QEasingCurve::Custom)) {
qWarning("progressForValue(): QEasingCurves of type %d do not have an inverse, since they are not injective.", curve.type());
return value;
}

2
src/widgets/util/qsystemtrayicon.cpp
View File

@ -264,7 +264,7 @@ void QSystemTrayIcon::setVisible(bool visible)
Q_D(QSystemTrayIcon);
if (visible == d->visible)
return;
if (d->icon.isNull() && visible)
if (Q_UNLIKELY(visible && d->icon.isNull()))
qWarning("QSystemTrayIcon::setVisible: No Icon set");
d->visible = visible;
if (d->visible)

12
src/widgets/util/qundostack.cpp
View File

@ -633,7 +633,7 @@ void QUndoStack::push(QUndoCommand *cmd)
void QUndoStack::setClean()
{
Q_D(QUndoStack);
if (!d->macro_stack.isEmpty()) {
if (Q_UNLIKELY(!d->macro_stack.isEmpty())) {
qWarning("QUndoStack::setClean(): cannot set clean in the middle of a macro");
return;
}
@ -688,7 +688,7 @@ void QUndoStack::undo()
if (d->index == 0)
return;
if (!d->macro_stack.isEmpty()) {
if (Q_UNLIKELY(!d->macro_stack.isEmpty())) {
qWarning("QUndoStack::undo(): cannot undo in the middle of a macro");
return;
}
@ -714,7 +714,7 @@ void QUndoStack::redo()
if (d->index == d->command_list.size())
return;
if (!d->macro_stack.isEmpty()) {
if (Q_UNLIKELY(!d->macro_stack.isEmpty())) {
qWarning("QUndoStack::redo(): cannot redo in the middle of a macro");
return;
}
@ -761,7 +761,7 @@ int QUndoStack::index() const
void QUndoStack::setIndex(int idx)
{
Q_D(QUndoStack);
if (!d->macro_stack.isEmpty()) {
if (Q_UNLIKELY(!d->macro_stack.isEmpty())) {
qWarning("QUndoStack::setIndex(): cannot set index in the middle of a macro");
return;
}
@ -981,7 +981,7 @@ void QUndoStack::beginMacro(const QString &text)
void QUndoStack::endMacro()
{
Q_D(QUndoStack);
if (d->macro_stack.isEmpty()) {
if (Q_UNLIKELY(d->macro_stack.isEmpty())) {
qWarning("QUndoStack::endMacro(): no matching beginMacro()");
return;
}
@ -1049,7 +1049,7 @@ void QUndoStack::setUndoLimit(int limit)
{
Q_D(QUndoStack);
if (!d->command_list.isEmpty()) {
if (Q_UNLIKELY(!d->command_list.isEmpty())) {
qWarning("QUndoStack::setUndoLimit(): an undo limit can only be set when the stack is empty");
return;
}

4
src/widgets/widgets/qabstractscrollarea.cpp
View File

@ -705,7 +705,7 @@ QScrollBar *QAbstractScrollArea::verticalScrollBar() const
void QAbstractScrollArea::setVerticalScrollBar(QScrollBar *scrollBar)
{
Q_D(QAbstractScrollArea);
if (!scrollBar) {
if (Q_UNLIKELY(!scrollBar)) {
qWarning("QAbstractScrollArea::setVerticalScrollBar: Cannot set a null scroll bar");
return;
}
@ -766,7 +766,7 @@ QScrollBar *QAbstractScrollArea::horizontalScrollBar() const
void QAbstractScrollArea::setHorizontalScrollBar(QScrollBar *scrollBar)
{
Q_D(QAbstractScrollArea);
if (!scrollBar) {
if (Q_UNLIKELY(!scrollBar)) {
qWarning("QAbstractScrollArea::setHorizontalScrollBar: Cannot set a null scroll bar");
return;
}

4
src/widgets/widgets/qabstractspinbox.cpp
View File

@ -1931,7 +1931,7 @@ void QSpinBoxValidator::fixup(QString &input) const
QVariant operator+(const QVariant &arg1, const QVariant &arg2)
{
QVariant ret;
if (arg1.type() != arg2.type())
if (Q_UNLIKELY(arg1.type() != arg2.type()))
qWarning("QAbstractSpinBox: Internal error: Different types (%s vs %s) (%s:%d)",
arg1.typeName(), arg2.typeName(), __FILE__, __LINE__);
switch (arg1.type()) {
@ -1970,7 +1970,7 @@ QVariant operator+(const QVariant &arg1, const QVariant &arg2)
QVariant operator-(const QVariant &arg1, const QVariant &arg2)
{
QVariant ret;
if (arg1.type() != arg2.type())
if (Q_UNLIKELY(arg1.type() != arg2.type()))
qWarning("QAbstractSpinBox: Internal error: Different types (%s vs %s) (%s:%d)",
arg1.typeName(), arg2.typeName(), __FILE__, __LINE__);
switch (arg1.type()) {

2
src/widgets/widgets/qcalendarwidget.cpp
View File

@ -2917,7 +2917,7 @@ void QCalendarWidget::setDateEditAcceptDelay(int delay)
*/
void QCalendarWidget::updateCell(const QDate &date)
{
if (!date.isValid()) {
if (Q_UNLIKELY(!date.isValid())) {
qWarning("QCalendarWidget::updateCell: Invalid date");
return;
}

14
src/widgets/widgets/qcombobox.cpp
View File

@ -1360,7 +1360,7 @@ int QComboBox::maxVisibleItems() const
void QComboBox::setMaxVisibleItems(int maxItems)
{
Q_D(QComboBox);
if (maxItems < 0) {
if (Q_UNLIKELY(maxItems < 0)) {
qWarning("QComboBox::setMaxVisibleItems: "
"Invalid max visible items (%d) must be >= 0", maxItems);
return;
@ -1395,7 +1395,7 @@ int QComboBox::count() const
void QComboBox::setMaxCount(int max)
{
Q_D(QComboBox);
if (max < 0) {
if (Q_UNLIKELY(max < 0)) {
qWarning("QComboBox::setMaxCount: Invalid count (%d) must be >= 0", max);
return;
}
@ -1448,7 +1448,7 @@ void QComboBox::setAutoCompletion(bool enable)
Q_D(QComboBox);
#ifdef QT_KEYPAD_NAVIGATION
if (QApplication::keypadNavigationEnabled() && !enable && isEditable())
if (Q_UNLIKELY(QApplication::keypadNavigationEnabled() && !enable && isEditable()))
qWarning("QComboBox::setAutoCompletion: auto completion is mandatory when combo box editable");
#endif
@ -1758,7 +1758,7 @@ void QComboBox::setEditable(bool editable)
void QComboBox::setLineEdit(QLineEdit *edit)
{
Q_D(QComboBox);
if (!edit) {
if (Q_UNLIKELY(!edit)) {
qWarning("QComboBox::setLineEdit: cannot set a 0 line edit");
return;
}
@ -1917,7 +1917,7 @@ QAbstractItemDelegate *QComboBox::itemDelegate() const
*/
void QComboBox::setItemDelegate(QAbstractItemDelegate *delegate)
{
if (!delegate) {
if (Q_UNLIKELY(!delegate)) {
qWarning("QComboBox::setItemDelegate: cannot set a 0 delegate");
return;
}
@ -1949,7 +1949,7 @@ void QComboBox::setModel(QAbstractItemModel *model)
{
Q_D(QComboBox);
if (!model) {
if (Q_UNLIKELY(!model)) {
qWarning("QComboBox::setModel: cannot set a 0 model");
return;
}
@ -2395,7 +2395,7 @@ QAbstractItemView *QComboBox::view() const
void QComboBox::setView(QAbstractItemView *itemView)
{
Q_D(QComboBox);
if (!itemView) {
if (Q_UNLIKELY(!itemView)) {
qWarning("QComboBox::setView: cannot set a 0 view");
return;
}

8
src/widgets/widgets/qdatetimeedit.cpp
View File

@ -760,17 +760,17 @@ QCalendarWidget *QDateTimeEdit::calendarWidget() const
void QDateTimeEdit::setCalendarWidget(QCalendarWidget *calendarWidget)
{
Q_D(QDateTimeEdit);
if (!calendarWidget) {
if (Q_UNLIKELY(!calendarWidget)) {
qWarning("QDateTimeEdit::setCalendarWidget: Cannot set a null calendar widget");
return;
}
if (!d->calendarPopup) {
if (Q_UNLIKELY(!d->calendarPopup)) {
qWarning("QDateTimeEdit::setCalendarWidget: calendarPopup is set to false");
return;
}
if (!(d->display & QDateTimeParser::DateSectionMask)) {
if (Q_UNLIKELY(!(d->display & QDateTimeParser::DateSectionMask))) {
qWarning("QDateTimeEdit::setCalendarWidget: no date sections specified");
return;
}
@ -1864,7 +1864,7 @@ void QDateTimeEditPrivate::clearSection(int index)
const QSignalBlocker blocker(edit);
QString t = edit->text();
const int pos = sectionPos(index);
if (pos == -1) {
if (Q_UNLIKELY(pos == -1)) {
qWarning("QDateTimeEdit: Internal error (%s:%d)", __FILE__, __LINE__);
return;
}

11
src/widgets/widgets/qdialogbuttonbox.cpp
View File

@ -405,11 +405,10 @@ QPushButton *QDialogButtonBoxPrivate::createButton(QDialogButtonBox::StandardBut
button->setStyle(style);
standardButtonHash.insert(button, sbutton);
QPlatformDialogHelper::ButtonRole role = QPlatformDialogHelper::buttonRole(static_cast<QPlatformDialogHelper::StandardButton>(sbutton));
if (role != QPlatformDialogHelper::InvalidRole) {
addButton(button, static_cast<QDialogButtonBox::ButtonRole>(role), doLayout);
} else {
if (Q_UNLIKELY(role == QPlatformDialogHelper::InvalidRole))
qWarning("QDialogButtonBox::createButton: Invalid ButtonRole, button not added");
}
else
addButton(button, static_cast<QDialogButtonBox::ButtonRole>(role), doLayout);
#ifdef Q_DEAD_CODE_FROM_QT4_MAC
// Since mnemonics is off by default on Mac, we add a Cmd-D
@ -753,7 +752,7 @@ void QDialogButtonBox::removeButton(QAbstractButton *button)
void QDialogButtonBox::addButton(QAbstractButton *button, ButtonRole role)
{
Q_D(QDialogButtonBox);
if (role <= InvalidRole || role >= NRoles) {
if (Q_UNLIKELY(role <= InvalidRole || role >= NRoles)) {
qWarning("QDialogButtonBox::addButton: Invalid ButtonRole, button not added");
return;
}
@ -772,7 +771,7 @@ void QDialogButtonBox::addButton(QAbstractButton *button, ButtonRole role)
QPushButton *QDialogButtonBox::addButton(const QString &text, ButtonRole role)
{
Q_D(QDialogButtonBox);
if (role <= InvalidRole || role >= NRoles) {
if (Q_UNLIKELY(role <= InvalidRole || role >= NRoles)) {
qWarning("QDialogButtonBox::addButton: Invalid ButtonRole, button not added");
return 0;
}

8
src/widgets/widgets/qdockarealayout.cpp
View File

@ -1802,7 +1802,7 @@ void QDockAreaLayoutInfo::saveState(QDataStream &stream) const
stream << (uchar) WidgetMarker;
QWidget *w = item.widgetItem->widget();
QString name = w->objectName();
if (name.isEmpty()) {
if (Q_UNLIKELY(name.isEmpty())) {
qWarning("QMainWindow::saveState(): 'objectName' not set for QDockWidget %p '%ls;",
w, qUtf16Printable(w->windowTitle()));
}
@ -3109,7 +3109,7 @@ void QDockAreaLayout::tabifyDockWidget(QDockWidget *first, QDockWidget *second)
void QDockAreaLayout::resizeDocks(const QList<QDockWidget *> &docks,
const QList<int> &sizes, Qt::Orientation o)
{
if (docks.count() != sizes.count()) {
if (Q_UNLIKELY(docks.count() != sizes.count())) {
qWarning("QMainWidget::resizeDocks: size of the lists are not the same");
return;
}
@ -3117,12 +3117,12 @@ void QDockAreaLayout::resizeDocks(const QList<QDockWidget *> &docks,
fallbackToSizeHints = false;
for (int i = 0; i < count; ++i) {
QList<int> path = indexOf(docks[i]);
if (path.isEmpty()) {
if (Q_UNLIKELY(path.isEmpty())) {
qWarning("QMainWidget::resizeDocks: one QDockWidget is not part of the layout");
continue;
}
int size = sizes[i];
if (size <= 0) {
if (Q_UNLIKELY(size <= 0)) {
qWarning("QMainWidget::resizeDocks: all sizes need to be larger than 0");
size = 1;
}

4
src/widgets/widgets/qlcdnumber.cpp
View File

@ -402,12 +402,12 @@ QLCDNumber::~QLCDNumber()
void QLCDNumber::setDigitCount(int numDigits)
{
Q_D(QLCDNumber);
if (numDigits > 99) {
if (Q_UNLIKELY(numDigits > 99)) {
qWarning("QLCDNumber::setNumDigits: (%s) Max 99 digits allowed",
objectName().toLocal8Bit().constData());
numDigits = 99;
}
if (numDigits < 0) {
if (Q_UNLIKELY(numDigits < 0)) {
qWarning("QLCDNumber::setNumDigits: (%s) Min 0 digits allowed",
objectName().toLocal8Bit().constData());
numDigits = 0;

2
src/widgets/widgets/qlineedit.cpp
View File

@ -982,7 +982,7 @@ int QLineEdit::selectionStart() const
void QLineEdit::setSelection(int start, int length)
{
Q_D(QLineEdit);
if (start < 0 || start > (int)d->control->end()) {
if (Q_UNLIKELY(start < 0 || start > (int)d->control->end())) {
qWarning("QLineEdit::setSelection: Invalid start position (%d)", start);
return;
}

2
src/widgets/widgets/qmaccocoaviewcontainer_mac.mm
View File

@ -93,7 +93,7 @@ inline QPlatformNativeInterface::NativeResourceForIntegrationFunction resolvePla
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
QPlatformNativeInterface::NativeResourceForIntegrationFunction function =
nativeInterface->nativeResourceFunctionForIntegration(functionName);
if (!function)
if (Q_UNLIKELY(!function))
qWarning() << "Qt could not resolve function" << functionName
<< "from QGuiApplication::platformNativeInterface()->nativeResourceFunctionForIntegration()";
return function;

2
src/widgets/widgets/qmacnativewidget_mac.mm
View File

@ -82,7 +82,7 @@ inline QPlatformNativeInterface::NativeResourceForIntegrationFunction resolvePla
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
QPlatformNativeInterface::NativeResourceForIntegrationFunction function =
nativeInterface->nativeResourceFunctionForIntegration(functionName);
if (!function)
if (Q_UNLIKELY(!function))
qWarning() << "Qt could not resolve function" << functionName
<< "from QGuiApplication::platformNativeInterface()->nativeResourceFunctionForIntegration()";
return function;

2
src/widgets/widgets/qmainwindow.cpp
View File

@ -693,7 +693,7 @@ void QMainWindow::setCorner(Qt::Corner corner, Qt::DockWidgetArea area)
valid = (area == Qt::BottomDockWidgetArea || area == Qt::RightDockWidgetArea);
break;
}
if (!valid)
if (Q_UNLIKELY(!valid))
qWarning("QMainWindow::setCorner(): 'area' is not valid for 'corner'");
else
d_func()->layout->setCorner(corner, area);

20
src/widgets/widgets/qmdiarea.cpp
View File

@ -179,7 +179,7 @@ using namespace QMdi;
// Asserts in debug mode, gives warning otherwise.
static bool sanityCheck(const QMdiSubWindow * const child, const char *where)
{
if (!child) {
if (Q_UNLIKELY(!child)) {
const char error[] = "null pointer";
Q_ASSERT_X(false, where, error);
qWarning("%s:%s", where, error);
@ -190,13 +190,13 @@ static bool sanityCheck(const QMdiSubWindow * const child, const char *where)
static bool sanityCheck(const QList<QWidget *> &widgets, const int index, const char *where)
{
if (index < 0 || index >= widgets.size()) {
if (Q_UNLIKELY(index < 0 || index >= widgets.size())) {
const char error[] = "index out of range";
Q_ASSERT_X(false, where, error);
qWarning("%s:%s", where, error);
return false;
}
if (!widgets.at(index)) {
if (Q_UNLIKELY(!widgets.at(index))) {
const char error[] = "null pointer";
Q_ASSERT_X(false, where, error);
qWarning("%s:%s", where, error);
@ -1831,12 +1831,12 @@ void QMdiArea::setActiveSubWindow(QMdiSubWindow *window)
return;
}
if (d->childWindows.isEmpty()) {
if (Q_UNLIKELY(d->childWindows.isEmpty())) {
qWarning("QMdiArea::setActiveSubWindow: workspace is empty");
return;
}
if (d->childWindows.indexOf(window) == -1) {
if (Q_UNLIKELY(d->childWindows.indexOf(window) == -1)) {
qWarning("QMdiArea::setActiveSubWindow: window is not inside workspace");
return;
}
@ -1960,7 +1960,7 @@ void QMdiArea::activatePreviousSubWindow()
*/
QMdiSubWindow *QMdiArea::addSubWindow(QWidget *widget, Qt::WindowFlags windowFlags)
{
if (!widget) {
if (Q_UNLIKELY(!widget)) {
qWarning("QMdiArea::addSubWindow: null pointer to widget");
return 0;
}
@ -1972,7 +1972,7 @@ QMdiSubWindow *QMdiArea::addSubWindow(QWidget *widget, Qt::WindowFlags windowFla
// Widget is already a QMdiSubWindow
if (child) {
if (d->childWindows.indexOf(child) != -1) {
if (Q_UNLIKELY(d->childWindows.indexOf(child) != -1)) {
qWarning("QMdiArea::addSubWindow: window is already added");
return child;
}
@ -2003,7 +2003,7 @@ QMdiSubWindow *QMdiArea::addSubWindow(QWidget *widget, Qt::WindowFlags windowFla
*/
void QMdiArea::removeSubWindow(QWidget *widget)
{
if (!widget) {
if (Q_UNLIKELY(!widget)) {
qWarning("QMdiArea::removeSubWindow: null pointer to widget");
return;
}
@ -2014,7 +2014,7 @@ void QMdiArea::removeSubWindow(QWidget *widget)
if (QMdiSubWindow *child = qobject_cast<QMdiSubWindow *>(widget)) {
int index = d->childWindows.indexOf(child);
if (index == -1) {
if (Q_UNLIKELY(index == -1)) {
qWarning("QMdiArea::removeSubWindow: window is not inside workspace");
return;
}
@ -2038,7 +2038,7 @@ void QMdiArea::removeSubWindow(QWidget *widget)
}
}
if (!found)
if (Q_UNLIKELY(!found))
qWarning("QMdiArea::removeSubWindow: widget is not child of any window inside QMdiArea");
}

4
src/widgets/widgets/qmdisubwindow.cpp
View File

@ -2309,7 +2309,7 @@ void QMdiSubWindow::setWidget(QWidget *widget)
return;
}
if (widget == d->baseWidget) {
if (Q_UNLIKELY(widget == d->baseWidget)) {
qWarning("QMdiSubWindow::setWidget: widget is already set");
return;
}
@ -2507,7 +2507,7 @@ void QMdiSubWindow::setKeyboardPageStep(int step)
void QMdiSubWindow::setSystemMenu(QMenu *systemMenu)
{
Q_D(QMdiSubWindow);
if (systemMenu && systemMenu == d->systemMenu) {
if (Q_UNLIKELY(systemMenu && systemMenu == d->systemMenu)) {
qWarning("QMdiSubWindow::setSystemMenu: system menu is already set");
return;
}

2
src/widgets/widgets/qmenu_mac.mm
View File

@ -55,7 +55,7 @@ inline QPlatformNativeInterface::NativeResourceForIntegrationFunction resolvePla
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
QPlatformNativeInterface::NativeResourceForIntegrationFunction function =
nativeInterface->nativeResourceFunctionForIntegration(functionName);
if (!function)
if (Q_UNLIKELY(!function))
qWarning() << "Qt could not resolve function" << functionName
<< "from QGuiApplication::platformNativeInterface()->nativeResourceFunctionForIntegration()";
return function;

2
src/widgets/widgets/qplaintextedit.cpp
View File

@ -1291,7 +1291,7 @@ void QPlainTextEdit::setDocument(QTextDocument *document)
document->setDocumentLayout(documentLayout);
} else {
documentLayout = qobject_cast<QPlainTextDocumentLayout*>(document->documentLayout());
if (!documentLayout) {
if (Q_UNLIKELY(!documentLayout)) {
qWarning("QPlainTextEdit::setDocument: Document set does not support QPlainTextDocumentLayout");
return;
}

2
src/widgets/widgets/qspinbox.cpp
View File

@ -438,7 +438,7 @@ void QSpinBox::setDisplayIntegerBase(int base)
{
Q_D(QSpinBox);
// Falls back to base 10 on invalid bases (like QString)
if (base < 2 || base > 36) {
if (Q_UNLIKELY(base < 2 || base > 36)) {
qWarning("QSpinBox::setDisplayIntegerBase: Invalid base (%d)", base);
base = 10;
}

6
src/widgets/widgets/qsplitter.cpp
View File

@ -1058,7 +1058,7 @@ void QSplitter::setCollapsible(int index, bool collapse)
{
Q_D(QSplitter);
if (index < 0 || index >= d->list.size()) {
if (Q_UNLIKELY(index < 0 || index >= d->list.size())) {
qWarning("QSplitter::setCollapsible: Index %d out of range", index);
return;
}
@ -1071,7 +1071,7 @@ void QSplitter::setCollapsible(int index, bool collapse)
bool QSplitter::isCollapsible(int index) const
{
Q_D(const QSplitter);
if (index < 0 || index >= d->list.size()) {
if (Q_UNLIKELY(index < 0 || index >= d->list.size())) {
qWarning("QSplitter::isCollapsible: Index %d out of range", index);
return false;
}
@ -1215,7 +1215,7 @@ void QSplitter::childEvent(QChildEvent *c)
{
Q_D(QSplitter);
if (!c->child()->isWidgetType()) {
if (c->type() == QEvent::ChildAdded && qobject_cast<QLayout *>(c->child()))
if (Q_UNLIKELY(c->type() == QEvent::ChildAdded && qobject_cast<QLayout *>(c->child())))
qWarning("Adding a QLayout to a QSplitter is not supported.");
return;
}

2
src/widgets/widgets/qstackedwidget.cpp
View File

@ -237,7 +237,7 @@ QWidget *QStackedWidget::currentWidget() const
void QStackedWidget::setCurrentWidget(QWidget *widget)
{
Q_D(QStackedWidget);
if (d->layout->indexOf(widget) == -1) {
if (Q_UNLIKELY(d->layout->indexOf(widget) == -1)) {
qWarning("QStackedWidget::setCurrentWidget: widget %p not contained in stack", widget);
return;
}

4
src/widgets/widgets/qstatusbar.cpp
View File

@ -296,7 +296,7 @@ int QStatusBar::insertWidget(int index, QWidget *widget, int stretch)
QStatusBarPrivate::SBItem* item = new QStatusBarPrivate::SBItem(widget, stretch, false);
int idx = d->indexToLastNonPermanentWidget();
if (index < 0 || index > d->items.size() || (idx >= 0 && index > idx + 1)) {
if (Q_UNLIKELY(index < 0 || index > d->items.size() || (idx >= 0 && index > idx + 1))) {
qWarning("QStatusBar::insertWidget: Index out of range (%d), appending widget", index);
index = idx + 1;
}
@ -361,7 +361,7 @@ int QStatusBar::insertPermanentWidget(int index, QWidget *widget, int stretch)
QStatusBarPrivate::SBItem* item = new QStatusBarPrivate::SBItem(widget, stretch, true);
int idx = d->indexToLastNonPermanentWidget();
if (index < 0 || index > d->items.size() || (idx >= 0 && index <= idx)) {
if (Q_UNLIKELY(index < 0 || index > d->items.size() || (idx >= 0 && index <= idx))) {
qWarning("QStatusBar::insertPermanentWidget: Index out of range (%d), appending widget", index);
index = d->items.size();
}

2
src/widgets/widgets/qtextbrowser.cpp
View File

@ -292,7 +292,7 @@ void QTextBrowserPrivate::setSource(const QUrl &url)
txt = data.toString();
#endif
}
if (txt.isEmpty())
if (Q_UNLIKELY(txt.isEmpty()))
qWarning("QTextBrowser: No document for %s", url.toString().toLatin1().constData());
if (q->isVisible()) {

4
src/widgets/widgets/qtoolbararealayout.cpp
View File

@ -1128,7 +1128,7 @@ QRect QToolBarAreaLayout::itemRect(const QList<int> &path) const
QLayoutItem *QToolBarAreaLayout::plug(const QList<int> &path)
{
QToolBarAreaLayoutItem *item = this->item(path);
if (!item) {
if (Q_UNLIKELY(!item)) {
qWarning() << Q_FUNC_INFO << "No item at" << path;
return 0;
}
@ -1260,7 +1260,7 @@ void QToolBarAreaLayout::saveState(QDataStream &stream) const
const QToolBarAreaLayoutItem &item = line.toolBarItems.at(k);
QWidget *widget = const_cast<QLayoutItem*>(item.widgetItem)->widget();
QString objectName = widget->objectName();
if (objectName.isEmpty()) {
if (Q_UNLIKELY(objectName.isEmpty())) {
qWarning("QMainWindow::saveState(): 'objectName' not set for QToolBar %p '%s'",
widget, widget->windowTitle().toLocal8Bit().constData());
}

6
src/widgets/widgets/qtoolbox.cpp
View File

@ -521,10 +521,10 @@ QWidget * QToolBox::currentWidget() const
void QToolBox::setCurrentWidget(QWidget *widget)
{
int i = indexOf(widget);
if (i >= 0)
setCurrentIndex(i);
else
if (Q_UNLIKELY(i < 0))
qWarning("QToolBox::setCurrentWidget: widget not contained in tool box");
else
setCurrentIndex(i);
}
/*!

2
src/widgets/widgets/qwidgetlinecontrol.cpp
View File

@ -309,7 +309,7 @@ void QWidgetLineControl::setSelection(int start, int length)
{
commitPreedit();
if(start < 0 || start > (int)m_text.length()){
if (Q_UNLIKELY(start < 0 || start > m_text.size())) {
qWarning("QWidgetLineControl::setSelection: Invalid start position");
return;
}