Extensionsystem: Modernize

modernize-use-auto
modernize-use-nullptr
modernize-use-override
modernize-use-equals-default

Change-Id: I20b4508e98ad3f8d6cd0ca2339bfc4c7dcb2ef2c
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

8 files changed, 42 insertions, 50 deletions

diff --git a/src/libs/extensionsystem/invoker.cpp b/src/libs/extensionsystem/invoker.cpp
index d4a19804a0..1506c4910a 100644
--- a/src/libs/extensionsystem/invoker.cpp
+++ b/src/libs/extensionsystem/invoker.cpp
@@ -34,7 +34,7 @@ InvokerBase::InvokerBase()
     nag = true;
     success = true;
     connectionType = Qt::AutoConnection;
-    target = 0;
+    target = nullptr;
 }
 
 InvokerBase::~InvokerBase()
diff --git a/src/libs/extensionsystem/optionsparser.cpp b/src/libs/extensionsystem/optionsparser.cpp
index 9dc6327b65..c3daed5daa 100644
--- a/src/libs/extensionsystem/optionsparser.cpp
+++ b/src/libs/extensionsystem/optionsparser.cpp
@@ -265,9 +265,9 @@ bool OptionsParser::checkForUnknownOption()
 
 void OptionsParser::forceDisableAllPluginsExceptTestedAndForceEnabled()
 {
-    for (const PluginManagerPrivate::TestSpec &testSpec : m_pmPrivate->testSpecs)
+    for (const PluginManagerPrivate::TestSpec &testSpec : qAsConst(m_pmPrivate->testSpecs))
         testSpec.pluginSpec->d->setForceEnabled(true);
-    for (PluginSpec *spec : m_pmPrivate->pluginSpecs) {
+    for (PluginSpec *spec : qAsConst(m_pmPrivate->pluginSpecs)) {
         if (!spec->isForceEnabled() && !spec->isRequired())
             spec->d->setForceDisabled(true);
     }
diff --git a/src/libs/extensionsystem/pluginerroroverview.cpp b/src/libs/extensionsystem/pluginerroroverview.cpp
index a5d82a1c62..828bd013f4 100644
--- a/src/libs/extensionsystem/pluginerroroverview.cpp
+++ b/src/libs/extensionsystem/pluginerroroverview.cpp
@@ -65,7 +65,7 @@ PluginErrorOverview::~PluginErrorOverview()
 void PluginErrorOverview::showDetails(QListWidgetItem *item)
 {
     if (item) {
-        PluginSpec *spec = item->data(Qt::UserRole).value<PluginSpec *>();
+        auto *spec = item->data(Qt::UserRole).value<PluginSpec *>();
         m_ui->pluginError->setText(spec->errorString());
     } else {
         m_ui->pluginError->clear();
diff --git a/src/libs/extensionsystem/pluginmanager.cpp b/src/libs/extensionsystem/pluginmanager.cpp
index d92a4ec67b..9edb0cdb62 100644
--- a/src/libs/extensionsystem/pluginmanager.cpp
+++ b/src/libs/extensionsystem/pluginmanager.cpp
@@ -256,8 +256,8 @@ namespace ExtensionSystem {
 
 using namespace Internal;
 
-static Internal::PluginManagerPrivate *d = 0;
-static PluginManager *m_instance = 0;
+static Internal::PluginManagerPrivate *d = nullptr;
+static PluginManager *m_instance = nullptr;
 
 /*!
     Gets the unique plugin manager instance.
@@ -282,7 +282,7 @@ PluginManager::PluginManager()
 PluginManager::~PluginManager()
 {
     delete d;
-    d = 0;
+    d = nullptr;
 }
 
 /*!
@@ -625,7 +625,7 @@ void PluginManager::remoteArguments(const QString &serializedArgument, QObject *
                                                                 arguments);
             if (socketParent && socket) {
                 socket->setParent(socketParent);
-                socket = 0;
+                socket = nullptr;
             }
         }
     }
@@ -829,7 +829,7 @@ void PluginManagerPrivate::nextDelayedInitialize()
     if (delayedInitializeQueue.isEmpty()) {
         m_isInitializationDone = true;
         delete delayedInitializeTimer;
-        delayedInitializeTimer = 0;
+        delayedInitializeTimer = nullptr;
         profilingSummary();
         emit q->initializationDone();
 #ifdef WITH_TESTS
@@ -845,12 +845,6 @@ void PluginManagerPrivate::nextDelayedInitialize()
     \internal
 */
 PluginManagerPrivate::PluginManagerPrivate(PluginManager *pluginManager) :
-    delayedInitializeTimer(0),
-    shutdownEventLoop(0),
-    m_profileElapsedMS(0),
-    m_profilingVerbosity(0),
-    settings(0),
-    globalSettings(0),
     q(pluginManager)
 {
 }
@@ -907,7 +901,7 @@ void PluginManagerPrivate::stopAll()
     if (delayedInitializeTimer && delayedInitializeTimer->isActive()) {
         delayedInitializeTimer->stop();
         delete delayedInitializeTimer;
-        delayedInitializeTimer = 0;
+        delayedInitializeTimer = nullptr;
     }
     QList<PluginSpec *> queue = loadQueue();
     foreach (PluginSpec *spec, queue) {
@@ -927,8 +921,8 @@ void PluginManagerPrivate::deleteAll()
 
 #ifdef WITH_TESTS
 
-typedef QMap<QObject *, QStringList> TestPlan; // Object -> selected test functions
-typedef QMapIterator<QObject *, QStringList> TestPlanIterator;
+using TestPlan = QMap<QObject *, QStringList>; // Object -> selected test functions
+using TestPlanIterator = QMapIterator<QObject *, QStringList>;
 
 static bool isTestFunction(const QMetaMethod &metaMethod)
 {
@@ -999,7 +993,7 @@ static QStringList matchingTestFunctions(const QStringList &testFunctions,
 
 static QObject *objectWithClassName(const QList<QObject *> &objects, const QString &className)
 {
-    return Utils::findOr(objects, 0, [className] (QObject *object) -> bool {
+    return Utils::findOr(objects, nullptr, [className] (QObject *object) -> bool {
         QString candidate = QString::fromUtf8(object->metaObject()->className());
         const int colonIndex = candidate.lastIndexOf(QLatin1Char(':'));
         if (colonIndex != -1 && colonIndex < candidate.size() - 1)
@@ -1159,7 +1153,7 @@ void PluginManagerPrivate::addObject(QObject *obj)
 {
     {
         QWriteLocker lock(&m_lock);
-        if (obj == 0) {
+        if (obj == nullptr) {
             qWarning() << "PluginManagerPrivate::addObject(): trying to add null object";
             return;
         }
@@ -1188,7 +1182,7 @@ void PluginManagerPrivate::addObject(QObject *obj)
 */
 void PluginManagerPrivate::removeObject(QObject *obj)
 {
-    if (obj == 0) {
+    if (obj == nullptr) {
         qWarning() << "PluginManagerPrivate::removeObject(): trying to remove null object";
         return;
     }
@@ -1265,7 +1259,7 @@ void PluginManagerPrivate::shutdown()
 */
 void PluginManagerPrivate::asyncShutdownFinished()
 {
-    IPlugin *plugin = qobject_cast<IPlugin *>(sender());
+    auto *plugin = qobject_cast<IPlugin *>(sender());
     Q_ASSERT(plugin);
     asynchronousPlugins.removeAll(plugin->pluginSpec());
     if (asynchronousPlugins.isEmpty())
@@ -1442,7 +1436,7 @@ void PluginManagerPrivate::readPluginPaths()
     pluginCategories.insert(QString(), QList<PluginSpec *>());
 
     foreach (const QString &pluginFile, pluginFiles(pluginPaths)) {
-        PluginSpec *spec = new PluginSpec;
+        auto *spec = new PluginSpec;
         if (!spec->d->read(pluginFile)) { // not a Qt Creator plugin
             delete spec;
             continue;
@@ -1505,7 +1499,7 @@ PluginSpec *PluginManagerPrivate::pluginForOption(const QString &option, bool *r
             return spec;
         }
     }
-    return 0;
+    return nullptr;
 }
 
 PluginSpec *PluginManagerPrivate::pluginByName(const QString &name) const
diff --git a/src/libs/extensionsystem/pluginmanager_p.h b/src/libs/extensionsystem/pluginmanager_p.h
index 6b7a2cc75b..b21a3f7ce4 100644
--- a/src/libs/extensionsystem/pluginmanager_p.h
+++ b/src/libs/extensionsystem/pluginmanager_p.h
@@ -55,7 +55,7 @@ class EXTENSIONSYSTEM_EXPORT PluginManagerPrivate : public QObject
     Q_OBJECT
 public:
     PluginManagerPrivate(PluginManager *pluginManager);
-    virtual ~PluginManagerPrivate();
+    ~PluginManagerPrivate() override;
 
     // Object pool operations
     void addObject(QObject *obj);
@@ -106,19 +106,19 @@ public:
     QStringList disabledPlugins;
     QStringList forceEnabledPlugins;
     // delayed initialization
-    QTimer *delayedInitializeTimer;
+    QTimer *delayedInitializeTimer = nullptr;
     QList<PluginSpec *> delayedInitializeQueue;
     // ansynchronous shutdown
     QList<PluginSpec *> asynchronousPlugins; // plugins that have requested async shutdown
-    QEventLoop *shutdownEventLoop; // used for async shutdown
+    QEventLoop *shutdownEventLoop = nullptr; // used for async shutdown
 
     QStringList arguments;
     QScopedPointer<QTime> m_profileTimer;
     QHash<const PluginSpec *, int> m_profileTotal;
-    int m_profileElapsedMS;
-    unsigned m_profilingVerbosity;
-    QSettings *settings;
-    QSettings *globalSettings;
+    int m_profileElapsedMS = 0;
+    unsigned m_profilingVerbosity = 0;
+    QSettings *settings = nullptr;
+    QSettings *globalSettings = nullptr;
 
     // Look in argument descriptions of the specs for the option.
     PluginSpec *pluginForOption(const QString &option, bool *requiresArgument) const;
diff --git a/src/libs/extensionsystem/pluginspec.cpp b/src/libs/extensionsystem/pluginspec.cpp
index b439c54f64..501ceba009 100644
--- a/src/libs/extensionsystem/pluginspec.cpp
+++ b/src/libs/extensionsystem/pluginspec.cpp
@@ -182,7 +182,7 @@ PluginSpec::PluginSpec()
 PluginSpec::~PluginSpec()
 {
     delete d;
-    d = 0;
+    d = nullptr;
 }
 
 /*!
@@ -963,7 +963,7 @@ bool PluginSpecPrivate::loadLibrary()
             + QString::fromLatin1(": ") + loader.errorString();
         return false;
     }
-    IPlugin *pluginObject = qobject_cast<IPlugin*>(loader.instance());
+    auto *pluginObject = qobject_cast<IPlugin*>(loader.instance());
     if (!pluginObject) {
         hasError = true;
         errorString = QCoreApplication::translate("PluginSpec", "Plugin is not valid (does not derive from IPlugin)");
@@ -1065,6 +1065,6 @@ void PluginSpecPrivate::kill()
     if (!plugin)
         return;
     delete plugin;
-    plugin = 0;
+    plugin = nullptr;
     state = PluginSpec::Deleted;
 }
diff --git a/src/libs/extensionsystem/pluginspec.h b/src/libs/extensionsystem/pluginspec.h
index 25c08cd412..e7c2987ebe 100644
--- a/src/libs/extensionsystem/pluginspec.h
+++ b/src/libs/extensionsystem/pluginspec.h
@@ -106,7 +106,7 @@ public:
     QVector<PluginDependency> dependencies() const;
     QJsonObject metaData() const;
 
-    typedef QVector<PluginArgumentDescription> PluginArgumentDescriptions;
+    using PluginArgumentDescriptions = QVector<PluginArgumentDescription>;
     PluginArgumentDescriptions argumentDescriptions() const;
 
     // other information, valid after 'Read' state is reached
diff --git a/src/libs/extensionsystem/pluginview.cpp b/src/libs/extensionsystem/pluginview.cpp
index af80a2747a..65b44307be 100644
--- a/src/libs/extensionsystem/pluginview.cpp
+++ b/src/libs/extensionsystem/pluginview.cpp
@@ -110,7 +110,7 @@ public:
 
     int columnCount() const { return 4; }
 
-    QVariant data(int column, int role) const
+    QVariant data(int column, int role) const override
     {
         if (role == HiddenByDefaultRole)
             return m_spec->isHiddenByDefault() || !m_spec->isAvailableForHostPlatform();
@@ -177,7 +177,7 @@ public:
         return QVariant();
     }
 
-    bool setData(int column, const QVariant &data, int role)
+    bool setData(int column, const QVariant &data, int role) override
     {
         if (column == LoadedColumn && role == Qt::CheckStateRole)
             return m_view->setPluginsEnabled(QSet<PluginSpec *>() << m_spec, data.toBool());
@@ -189,7 +189,7 @@ public:
         return m_spec->isAvailableForHostPlatform() && !m_spec->isRequired();
     }
 
-    Qt::ItemFlags flags(int column) const
+    Qt::ItemFlags flags(int column) const override
     {
         Qt::ItemFlags ret = Qt::ItemIsSelectable;
 
@@ -221,7 +221,7 @@ public:
 
     int columnCount() const { return 4; }
 
-    QVariant data(int column, int role) const
+    QVariant data(int column, int role) const override
     {
         if (role == HiddenByDefaultRole)
             return false;
@@ -260,7 +260,7 @@ public:
         return QVariant();
     }
 
-    bool setData(int column, const QVariant &data, int role)
+    bool setData(int column, const QVariant &data, int role) override
     {
         if (column == LoadedColumn && role == Qt::CheckStateRole) {
             const QList<PluginSpec *> affectedPlugins =
@@ -273,7 +273,7 @@ public:
         return false;
     }
 
-    Qt::ItemFlags flags(int column) const
+    Qt::ItemFlags flags(int column) const override
     {
         Qt::ItemFlags ret = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
         if (column == LoadedColumn)
@@ -290,7 +290,7 @@ public:
 class PluginFilterModel : public CategorySortFilterModel
 {
 public:
-    PluginFilterModel(QObject *parent = 0) : CategorySortFilterModel(parent) {}
+    PluginFilterModel(QObject *parent = nullptr) : CategorySortFilterModel(parent) {}
 
     void setShowHidden(bool show)
     {
@@ -355,7 +355,7 @@ PluginView::PluginView(QWidget *parent)
     m_sortModel->setFilterKeyColumn(-1/*all*/);
     m_categoryView->setModel(m_sortModel);
 
-    QGridLayout *gridLayout = new QGridLayout(this);
+    auto *gridLayout = new QGridLayout(this);
     gridLayout->setContentsMargins(2, 2, 2, 2);
     gridLayout->addWidget(m_categoryView, 1, 0, 1, 1);
 
@@ -367,10 +367,10 @@ PluginView::PluginView(QWidget *parent)
             this, &PluginView::updatePlugins);
 
     connect(m_categoryView, &QAbstractItemView::activated,
-            [this](const QModelIndex &idx) { pluginActivated(pluginForIndex(idx)); });
+            [this](const QModelIndex &idx) { emit pluginActivated(pluginForIndex(idx)); });
 
     connect(m_categoryView->selectionModel(), &QItemSelectionModel::currentChanged,
-            [this](const QModelIndex &idx) { currentPluginChanged(pluginForIndex(idx)); });
+            [this](const QModelIndex &idx) { emit currentPluginChanged(pluginForIndex(idx)); });
 
     updatePlugins();
 }
@@ -378,9 +378,7 @@ PluginView::PluginView(QWidget *parent)
 /*!
     \internal
 */
-PluginView::~PluginView()
-{
-}
+PluginView::~PluginView() = default;
 
 /*!
     Returns the current selection in the list of plugins.
@@ -411,7 +409,7 @@ PluginSpec *PluginView::pluginForIndex(const QModelIndex &index) const
 {
     const QModelIndex &sourceIndex = m_sortModel->mapToSource(index);
     PluginItem *item = m_model->itemForIndexAtLevel<2>(sourceIndex);
-    return item ? item->m_spec: 0;
+    return item ? item->m_spec: nullptr;
 }
 
 void PluginView::updatePlugins()
@@ -432,7 +430,7 @@ void PluginView::updatePlugins()
     foreach (CollectionItem *collection, collections)
         m_model->rootItem()->appendChild(collection);
 
-    m_model->layoutChanged();
+    emit m_model->layoutChanged();
     m_categoryView->expandAll();
 }