headers: Add missing override and remove redundant virtual

Change-Id: Ifa816ebcd79372afca42dbd0dc0ecde006bb688a
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

43 files changed, 213 insertions, 213 deletions

diff --git a/src/plugins/qmltooling/qmldbg_debugger/qqmldebuggerservicefactory.h b/src/plugins/qmltooling/qmldbg_debugger/qqmldebuggerservicefactory.h
index 99d6679833..50eed2369c 100644
--- a/src/plugins/qmltooling/qmldbg_debugger/qqmldebuggerservicefactory.h
+++ b/src/plugins/qmltooling/qmldbg_debugger/qqmldebuggerservicefactory.h
@@ -49,7 +49,7 @@ class QQmlDebuggerServiceFactory : public QQmlDebugServiceFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugServiceFactory_iid FILE "qqmldebuggerservice.json")
 public:
-    QQmlDebugService *create(const QString &key);
+    QQmlDebugService *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_debugger/qv4debugjob.h b/src/plugins/qmltooling/qmldbg_debugger/qv4debugjob.h
index aff2ea1b6c..b28adffae5 100644
--- a/src/plugins/qmltooling/qmldbg_debugger/qv4debugjob.h
+++ b/src/plugins/qmltooling/qmldbg_debugger/qv4debugjob.h
@@ -112,7 +112,7 @@ class ScopeJob: public CollectJob
 
 public:
     ScopeJob(QV4DataCollector *collector, int frameNr, int scopeNr);
-    void run();
+    void run() override;
     bool wasSuccessful() const;
 };
 
diff --git a/src/plugins/qmltooling/qmldbg_inspector/highlight.h b/src/plugins/qmltooling/qmldbg_inspector/highlight.h
index 2bf4fc1ad5..3f910e833b 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/highlight.h
+++ b/src/plugins/qmltooling/qmldbg_inspector/highlight.h
@@ -81,7 +81,7 @@ class SelectionHighlight : public Highlight
 
 public:
     SelectionHighlight(const QString &name, QQuickItem *item, QQuickItem *parent);
-    void paint(QPainter *painter);
+    void paint(QPainter *painter) override;
     void showName(const QPointF &displayPoint);
 
 private:
@@ -104,7 +104,7 @@ public:
         setZ(1); // hover highlight on top of selection highlight
     }
 
-    void paint(QPainter *painter);
+    void paint(QPainter *painter) override;
 };
 
 } // namespace QmlJSDebugger
diff --git a/src/plugins/qmltooling/qmldbg_inspector/qqmlinspectorservicefactory.h b/src/plugins/qmltooling/qmldbg_inspector/qqmlinspectorservicefactory.h
index 09e6a01f96..3214532c8d 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/qqmlinspectorservicefactory.h
+++ b/src/plugins/qmltooling/qmldbg_inspector/qqmlinspectorservicefactory.h
@@ -64,7 +64,7 @@ class QQmlInspectorServiceFactory : public QQmlDebugServiceFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugServiceFactory_iid FILE "qqmlinspectorservice.json")
 public:
-    QQmlDebugService *create(const QString &key);
+    QQmlDebugService *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_inspector/qquickwindowinspector.h b/src/plugins/qmltooling/qmldbg_inspector/qquickwindowinspector.h
index b37a9face1..fc18f33ad3 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/qquickwindowinspector.h
+++ b/src/plugins/qmltooling/qmldbg_inspector/qquickwindowinspector.h
@@ -78,7 +78,7 @@ public:
     void setEnabled(bool enabled);
 
 protected:
-    bool eventFilter(QObject *, QEvent *);
+    bool eventFilter(QObject *, QEvent *) override;
 
 private:
     QQuickItem *m_overlay;
diff --git a/src/plugins/qmltooling/qmldbg_local/qlocalclientconnectionfactory.h b/src/plugins/qmltooling/qmldbg_local/qlocalclientconnectionfactory.h
index b884a1ec23..b64a1fff95 100644
--- a/src/plugins/qmltooling/qmldbg_local/qlocalclientconnectionfactory.h
+++ b/src/plugins/qmltooling/qmldbg_local/qlocalclientconnectionfactory.h
@@ -50,7 +50,7 @@ class QLocalClientConnectionFactory : public QQmlDebugServerConnectionFactory
     Q_PLUGIN_METADATA(IID QQmlDebugServerConnectionFactory_iid FILE "qlocalclientconnection.json")
     Q_INTERFACES(QQmlDebugServerConnectionFactory)
 public:
-    QQmlDebugServerConnection *create(const QString &key);
+    QQmlDebugServerConnection *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservice.h b/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservice.h
index c25e756c2d..24fd27514b 100644
--- a/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservice.h
+++ b/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservice.h
@@ -68,10 +68,10 @@ public:
     QDebugMessageServiceImpl(QObject *parent = 0);
 
     void sendDebugMessage(QtMsgType type, const QMessageLogContext &ctxt, const QString &buf);
-    void synchronizeTime(const QElapsedTimer &otherTimer);
+    void synchronizeTime(const QElapsedTimer &otherTimer) override;
 
 protected:
-    void stateChanged(State);
+    void stateChanged(State) override;
 
 private:
     friend class QQmlDebuggerServiceFactory;
diff --git a/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservicefactory.h b/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservicefactory.h
index e09efd1304..0c5f0f5d0a 100644
--- a/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservicefactory.h
+++ b/src/plugins/qmltooling/qmldbg_messages/qdebugmessageservicefactory.h
@@ -49,7 +49,7 @@ class QDebugMessageServiceFactory : public QQmlDebugServiceFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugServiceFactory_iid FILE "qdebugmessageservice.json")
 public:
-    QQmlDebugService *create(const QString &key);
+    QQmlDebugService *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.h b/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.h
index 1184925e53..f8b7e1d527 100644
--- a/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.h
+++ b/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.h
@@ -78,7 +78,7 @@ class QQmlNativeDebugConnectorFactory : public QQmlDebugConnectorFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugConnectorFactory_iid FILE "qqmlnativedebugconnector.json")
 public:
-    QQmlDebugConnector *create(const QString &key);
+    QQmlDebugConnector *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_nativedebugger/qqmlnativedebugservicefactory.h b/src/plugins/qmltooling/qmldbg_nativedebugger/qqmlnativedebugservicefactory.h
index c4a8850bec..f2b2e4792e 100644
--- a/src/plugins/qmltooling/qmldbg_nativedebugger/qqmlnativedebugservicefactory.h
+++ b/src/plugins/qmltooling/qmldbg_nativedebugger/qqmlnativedebugservicefactory.h
@@ -49,7 +49,7 @@ class QQmlNativeDebugServiceFactory : public QQmlDebugServiceFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugServiceFactory_iid FILE "qqmlnativedebugservice.json")
 public:
-    QQmlDebugService *create(const QString &key);
+    QQmlDebugService *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservicefactory.h b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservicefactory.h
index 772e53bde7..cdce4cd240 100644
--- a/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservicefactory.h
+++ b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservicefactory.h
@@ -60,7 +60,7 @@ class QQmlProfilerServiceFactory : public QQmlDebugServiceFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlDebugServiceFactory_iid FILE "qqmlprofilerservice.json")
 public:
-    QQmlDebugService *create(const QString &key);
+    QQmlDebugService *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_quickprofiler/qquickprofileradapterfactory.h b/src/plugins/qmltooling/qmldbg_quickprofiler/qquickprofileradapterfactory.h
index 489545b504..41b9875c03 100644
--- a/src/plugins/qmltooling/qmldbg_quickprofiler/qquickprofileradapterfactory.h
+++ b/src/plugins/qmltooling/qmldbg_quickprofiler/qquickprofileradapterfactory.h
@@ -61,7 +61,7 @@ class QQuickProfilerAdapterFactory : public QQmlAbstractProfilerAdapterFactory
     Q_OBJECT
     Q_PLUGIN_METADATA(IID QQmlAbstractProfilerAdapterFactory_iid FILE "qquickprofileradapter.json")
 public:
-    QQmlAbstractProfilerAdapter *create(const QString &key);
+    QQmlAbstractProfilerAdapter *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_server/qqmldebugserverfactory.h b/src/plugins/qmltooling/qmldbg_server/qqmldebugserverfactory.h
index fd71b03019..2debabaeb2 100644
--- a/src/plugins/qmltooling/qmldbg_server/qqmldebugserverfactory.h
+++ b/src/plugins/qmltooling/qmldbg_server/qqmldebugserverfactory.h
@@ -63,7 +63,7 @@ class QQmlDebugServerFactory : public QQmlDebugConnectorFactory
     // QQmlDebugServer is for connection plugins.
     Q_PLUGIN_METADATA(IID QQmlDebugConnectorFactory_iid FILE "qqmldebugserver.json")
 public:
-    QQmlDebugConnector *create(const QString &key);
+    QQmlDebugConnector *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnectionfactory.h b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnectionfactory.h
index 52d9f4b709..d3b0e00584 100644
--- a/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnectionfactory.h
+++ b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnectionfactory.h
@@ -50,7 +50,7 @@ class QTcpServerConnectionFactory : public QQmlDebugServerConnectionFactory
     Q_PLUGIN_METADATA(IID QQmlDebugServerConnectionFactory_iid FILE "qtcpserverconnection.json")
     Q_INTERFACES(QQmlDebugServerConnectionFactory)
 public:
-    QQmlDebugServerConnection *create(const QString &key);
+    QQmlDebugServerConnection *create(const QString &key) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/qml/animations/qabstractanimationjob_p.h b/src/qml/animations/qabstractanimationjob_p.h
index efc86a5823..95a39b1301 100644
--- a/src/qml/animations/qabstractanimationjob_p.h
+++ b/src/qml/animations/qabstractanimationjob_p.h
@@ -218,11 +218,11 @@ public:
     */
     static void updateAnimationTimer();
 
-    void restartAnimationTimer();
-    void updateAnimationsTime(qint64 timeStep);
+    void restartAnimationTimer() override;
+    void updateAnimationsTime(qint64 timeStep) override;
 
     //useful for profiling/debugging
-    int runningAnimationCount() { return animations.count(); }
+    int runningAnimationCount() override { return animations.count(); }
 
     bool hasStartAnimationPending() const { return startAnimationPending; }
 
diff --git a/src/qml/animations/qcontinuinganimationgroupjob_p.h b/src/qml/animations/qcontinuinganimationgroupjob_p.h
index f34a118cad..baf4ff1ae5 100644
--- a/src/qml/animations/qcontinuinganimationgroupjob_p.h
+++ b/src/qml/animations/qcontinuinganimationgroupjob_p.h
@@ -62,14 +62,14 @@ public:
     QContinuingAnimationGroupJob();
     ~QContinuingAnimationGroupJob();
 
-    int duration() const { return -1; }
+    int duration() const override { return -1; }
 
 protected:
-    void updateCurrentTime(int currentTime);
-    void updateState(QAbstractAnimationJob::State newState, QAbstractAnimationJob::State oldState);
-    void updateDirection(QAbstractAnimationJob::Direction direction);
-    void uncontrolledAnimationFinished(QAbstractAnimationJob *animation);
-    void debugAnimation(QDebug d) const;
+    void updateCurrentTime(int currentTime) override;
+    void updateState(QAbstractAnimationJob::State newState, QAbstractAnimationJob::State oldState) override;
+    void updateDirection(QAbstractAnimationJob::Direction direction) override;
+    void uncontrolledAnimationFinished(QAbstractAnimationJob *animation) override;
+    void debugAnimation(QDebug d) const override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/qml/animations/qpauseanimationjob_p.h b/src/qml/animations/qpauseanimationjob_p.h
index 2967e1cf60..e228f46daa 100644
--- a/src/qml/animations/qpauseanimationjob_p.h
+++ b/src/qml/animations/qpauseanimationjob_p.h
@@ -62,12 +62,12 @@ public:
     explicit QPauseAnimationJob(int duration = 250);
     ~QPauseAnimationJob();
 
-    int duration() const;
+    int duration() const override;
     void setDuration(int msecs);
 
 protected:
-    void updateCurrentTime(int);
-    void debugAnimation(QDebug d) const;
+    void updateCurrentTime(int) override;
+    void debugAnimation(QDebug d) const override;
 
 private:
     //definition
diff --git a/src/qml/animations/qsequentialanimationgroupjob_p.h b/src/qml/animations/qsequentialanimationgroupjob_p.h
index bb481d1322..5fbafcb9ac 100644
--- a/src/qml/animations/qsequentialanimationgroupjob_p.h
+++ b/src/qml/animations/qsequentialanimationgroupjob_p.h
@@ -63,16 +63,16 @@ public:
     QSequentialAnimationGroupJob();
     ~QSequentialAnimationGroupJob();
 
-    int duration() const;
+    int duration() const override;
 
     QAbstractAnimationJob *currentAnimation() const { return m_currentAnimation; }
 
 protected:
-    void updateCurrentTime(int);
-    void updateState(QAbstractAnimationJob::State newState, QAbstractAnimationJob::State oldState);
-    void updateDirection(QAbstractAnimationJob::Direction direction);
-    void uncontrolledAnimationFinished(QAbstractAnimationJob *animation);
-    void debugAnimation(QDebug d) const;
+    void updateCurrentTime(int) override;
+    void updateState(QAbstractAnimationJob::State newState, QAbstractAnimationJob::State oldState) override;
+    void updateDirection(QAbstractAnimationJob::Direction direction) override;
+    void uncontrolledAnimationFinished(QAbstractAnimationJob *animation) override;
+    void debugAnimation(QDebug d) const override;
 
 private:
     struct AnimationIndex
@@ -91,8 +91,8 @@ private:
     void setCurrentAnimation(QAbstractAnimationJob *anim, bool intermediate = false);
     void activateCurrentAnimation(bool intermediate = false);
 
-    void animationInserted(QAbstractAnimationJob *anim);
-    void animationRemoved(QAbstractAnimationJob *anim,QAbstractAnimationJob*,QAbstractAnimationJob*);
+    void animationInserted(QAbstractAnimationJob *anim) override;
+    void animationRemoved(QAbstractAnimationJob *anim, QAbstractAnimationJob *, QAbstractAnimationJob *) override;
 
     bool atEnd() const;
 
diff --git a/src/qml/jit/qv4isel_masm_p.h b/src/qml/jit/qv4isel_masm_p.h
index 5c693e0736..012745c5f2 100644
--- a/src/qml/jit/qv4isel_masm_p.h
+++ b/src/qml/jit/qv4isel_masm_p.h
@@ -80,61 +80,61 @@ public:
     InstructionSelection(QQmlEnginePrivate *qmlEngine, QV4::ExecutableAllocator *execAllocator, IR::Module *module, QV4::Compiler::JSUnitGenerator *jsGenerator, EvalISelFactory *iselFactory);
     ~InstructionSelection();
 
-    virtual void run(int functionIndex);
+    void run(int functionIndex) override;
 
 protected:
-    virtual QQmlRefPointer<QV4::CompiledData::CompilationUnit> backendCompileStep();
-
-    virtual void callBuiltinInvalid(IR::Name *func, IR::ExprList *args, IR::Expr *result);
-    virtual void callBuiltinTypeofQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::Expr *result);
-    virtual void callBuiltinTypeofMember(IR::Expr *base, const QString &name, IR::Expr *result);
-    virtual void callBuiltinTypeofSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result);
-    virtual void callBuiltinTypeofName(const QString &name, IR::Expr *result);
-    virtual void callBuiltinTypeofValue(IR::Expr *value, IR::Expr *result);
-    virtual void callBuiltinDeleteMember(IR::Expr *base, const QString &name, IR::Expr *result);
-    virtual void callBuiltinDeleteSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result);
-    virtual void callBuiltinDeleteName(const QString &name, IR::Expr *result);
-    virtual void callBuiltinDeleteValue(IR::Expr *result);
-    virtual void callBuiltinThrow(IR::Expr *arg);
-    virtual void callBuiltinReThrow();
-    virtual void callBuiltinUnwindException(IR::Expr *);
-    virtual void callBuiltinPushCatchScope(const QString &exceptionName);
-    virtual void callBuiltinForeachIteratorObject(IR::Expr *arg, IR::Expr *result);
-    virtual void callBuiltinForeachNextPropertyname(IR::Expr *arg, IR::Expr *result);
-    virtual void callBuiltinPushWithScope(IR::Expr *arg);
-    virtual void callBuiltinPopScope();
-    virtual void callBuiltinDeclareVar(bool deletable, const QString &name);
-    virtual void callBuiltinDefineArray(IR::Expr *result, IR::ExprList *args);
-    virtual void callBuiltinDefineObjectLiteral(IR::Expr *result, int keyValuePairCount, IR::ExprList *keyValuePairs, IR::ExprList *arrayEntries, bool needSparseArray);
-    virtual void callBuiltinSetupArgumentObject(IR::Expr *result);
-    virtual void callBuiltinConvertThisToObject();
-    virtual void callValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result);
-    virtual void callQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::ExprList *args, IR::Expr *result);
-    virtual void callProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result);
-    virtual void callSubscript(IR::Expr *base, IR::Expr *index, IR::ExprList *args, IR::Expr *result);
-    virtual void convertType(IR::Expr *source, IR::Expr *target);
-    virtual void loadThisObject(IR::Expr *temp);
-    virtual void loadQmlContext(IR::Expr *target);
-    virtual void loadQmlImportedScripts(IR::Expr *target);
-    virtual void loadQmlSingleton(const QString &name, IR::Expr *target);
-    virtual void loadConst(IR::Const *sourceConst, IR::Expr *target);
-    virtual void loadString(const QString &str, IR::Expr *target);
-    virtual void loadRegexp(IR::RegExp *sourceRegexp, IR::Expr *target);
-    virtual void getActivationProperty(const IR::Name *name, IR::Expr *target);
-    virtual void setActivationProperty(IR::Expr *source, const QString &targetName);
-    virtual void initClosure(IR::Closure *closure, IR::Expr *target);
-    virtual void getProperty(IR::Expr *base, const QString &name, IR::Expr *target);
-    virtual void getQmlContextProperty(IR::Expr *source, IR::Member::MemberKind kind, int index, bool captureRequired, IR::Expr *target);
-    virtual void getQObjectProperty(IR::Expr *base, int propertyIndex, bool captureRequired, bool isSingleton, int attachedPropertiesId, IR::Expr *target);
-    virtual void setProperty(IR::Expr *source, IR::Expr *targetBase, const QString &targetName);
-    virtual void setQmlContextProperty(IR::Expr *source, IR::Expr *targetBase, IR::Member::MemberKind kind, int propertyIndex);
-    virtual void setQObjectProperty(IR::Expr *source, IR::Expr *targetBase, int propertyIndex);
-    virtual void getElement(IR::Expr *base, IR::Expr *index, IR::Expr *target);
-    virtual void setElement(IR::Expr *source, IR::Expr *targetBase, IR::Expr *targetIndex);
-    virtual void copyValue(IR::Expr *source, IR::Expr *target);
-    virtual void swapValues(IR::Expr *source, IR::Expr *target);
-    virtual void unop(IR::AluOp oper, IR::Expr *sourceTemp, IR::Expr *target);
-    virtual void binop(IR::AluOp oper, IR::Expr *leftSource, IR::Expr *rightSource, IR::Expr *target);
+    QQmlRefPointer<QV4::CompiledData::CompilationUnit> backendCompileStep() override;
+
+    void callBuiltinInvalid(IR::Name *func, IR::ExprList *args, IR::Expr *result) override;
+    void callBuiltinTypeofQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::Expr *result) override;
+    void callBuiltinTypeofMember(IR::Expr *base, const QString &name, IR::Expr *result) override;
+    void callBuiltinTypeofSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result) override;
+    void callBuiltinTypeofName(const QString &name, IR::Expr *result) override;
+    void callBuiltinTypeofValue(IR::Expr *value, IR::Expr *result) override;
+    void callBuiltinDeleteMember(IR::Expr *base, const QString &name, IR::Expr *result) override;
+    void callBuiltinDeleteSubscript(IR::Expr *base, IR::Expr *index, IR::Expr *result) override;
+    void callBuiltinDeleteName(const QString &name, IR::Expr *result) override;
+    void callBuiltinDeleteValue(IR::Expr *result) override;
+    void callBuiltinThrow(IR::Expr *arg) override;
+    void callBuiltinReThrow() override;
+    void callBuiltinUnwindException(IR::Expr *) override;
+    void callBuiltinPushCatchScope(const QString &exceptionName) override;
+    void callBuiltinForeachIteratorObject(IR::Expr *arg, IR::Expr *result) override;
+    void callBuiltinForeachNextPropertyname(IR::Expr *arg, IR::Expr *result) override;
+    void callBuiltinPushWithScope(IR::Expr *arg) override;
+    void callBuiltinPopScope() override;
+    void callBuiltinDeclareVar(bool deletable, const QString &name) override;
+    void callBuiltinDefineArray(IR::Expr *result, IR::ExprList *args) override;
+    void callBuiltinDefineObjectLiteral(IR::Expr *result, int keyValuePairCount, IR::ExprList *keyValuePairs, IR::ExprList *arrayEntries, bool needSparseArray) override;
+    void callBuiltinSetupArgumentObject(IR::Expr *result) override;
+    void callBuiltinConvertThisToObject() override;
+    void callValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result) override;
+    void callQmlContextProperty(IR::Expr *base, IR::Member::MemberKind kind, int propertyIndex, IR::ExprList *args, IR::Expr *result) override;
+    void callProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr *result) override;
+    void callSubscript(IR::Expr *base, IR::Expr *index, IR::ExprList *args, IR::Expr *result) override;
+    void convertType(IR::Expr *source, IR::Expr *target) override;
+    void loadThisObject(IR::Expr *temp) override;
+    void loadQmlContext(IR::Expr *target) override;
+    void loadQmlImportedScripts(IR::Expr *target) override;
+    void loadQmlSingleton(const QString &name, IR::Expr *target) override;
+    void loadConst(IR::Const *sourceConst, IR::Expr *target) override;
+    void loadString(const QString &str, IR::Expr *target) override;
+    void loadRegexp(IR::RegExp *sourceRegexp, IR::Expr *target) override;
+    void getActivationProperty(const IR::Name *name, IR::Expr *target) override;
+    void setActivationProperty(IR::Expr *source, const QString &targetName) override;
+    void initClosure(IR::Closure *closure, IR::Expr *target) override;
+    void getProperty(IR::Expr *base, const QString &name, IR::Expr *target) override;
+    void getQmlContextProperty(IR::Expr *source, IR::Member::MemberKind kind, int index, bool captureRequired, IR::Expr *target) override;
+    void getQObjectProperty(IR::Expr *base, int propertyIndex, bool captureRequired, bool isSingleton, int attachedPropertiesId, IR::Expr *target) override;
+    void setProperty(IR::Expr *source, IR::Expr *targetBase, const QString &targetName) override;
+    void setQmlContextProperty(IR::Expr *source, IR::Expr *targetBase, IR::Member::MemberKind kind, int propertyIndex) override;
+    void setQObjectProperty(IR::Expr *source, IR::Expr *targetBase, int propertyIndex) override;
+    void getElement(IR::Expr *base, IR::Expr *index, IR::Expr *target) override;
+    void setElement(IR::Expr *source, IR::Expr *targetBase, IR::Expr *targetIndex) override;
+    void copyValue(IR::Expr *source, IR::Expr *target) override;
+    void swapValues(IR::Expr *source, IR::Expr *target) override;
+    void unop(IR::AluOp oper, IR::Expr *sourceTemp, IR::Expr *target) override;
+    void binop(IR::AluOp oper, IR::Expr *leftSource, IR::Expr *rightSource, IR::Expr *target) override;
 
     typedef Assembler::Address Address;
     typedef Assembler::Pointer Pointer;
@@ -159,13 +159,13 @@ protected:
         return _as->stackLayout().callDataAddress();
     }
 
-    virtual void constructActivationProperty(IR::Name *func, IR::ExprList *args, IR::Expr *result);
-    virtual void constructProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr*result);
-    virtual void constructValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result);
+    void constructActivationProperty(IR::Name *func, IR::ExprList *args, IR::Expr *result) override;
+    void constructProperty(IR::Expr *base, const QString &name, IR::ExprList *args, IR::Expr*result) override;
+    void constructValue(IR::Expr *value, IR::ExprList *args, IR::Expr *result) override;
 
-    virtual void visitJump(IR::Jump *);
-    virtual void visitCJump(IR::CJump *);
-    virtual void visitRet(IR::Ret *);
+    void visitJump(IR::Jump *) override;
+    void visitCJump(IR::CJump *) override;
+    void visitRet(IR::Ret *) override;
 
     bool visitCJumpDouble(IR::AluOp op, IR::Expr *left, IR::Expr *right,
                           IR::BasicBlock *iftrue, IR::BasicBlock *iffalse);
diff --git a/src/qml/parser/qqmljsast_p.h b/src/qml/parser/qqmljsast_p.h
index 846ea42571..d31e464e99 100644
--- a/src/qml/parser/qqmljsast_p.h
+++ b/src/qml/parser/qqmljsast_p.h
@@ -253,7 +253,7 @@ class QML_PARSER_EXPORT ExpressionNode: public Node
 public:
     ExpressionNode() {}
 
-    virtual ExpressionNode *expressionCast();
+    ExpressionNode *expressionCast() override;
 };
 
 class QML_PARSER_EXPORT Statement: public Node
@@ -261,7 +261,7 @@ class QML_PARSER_EXPORT Statement: public Node
 public:
     Statement() {}
 
-    virtual Statement *statementCast();
+    Statement *statementCast() override;
 };
 
 class QML_PARSER_EXPORT NestedExpression: public ExpressionNode
diff --git a/src/qml/qml/qqmlcontext_p.h b/src/qml/qml/qqmlcontext_p.h
index 162fbcc8f6..4d2bb72352 100644
--- a/src/qml/qml/qqmlcontext_p.h
+++ b/src/qml/qml/qqmlcontext_p.h
@@ -197,7 +197,7 @@ public:
     {
         inline ContextGuard();
         inline ContextGuard &operator=(QObject *obj);
-        inline void objectDestroyed(QObject *);
+        inline void objectDestroyed(QObject *) override;
 
         inline bool wasSet() const;
 
diff --git a/src/qml/qml/qqmlopenmetaobject_p.h b/src/qml/qml/qqmlopenmetaobject_p.h
index 183baec941..4bb92489a5 100644
--- a/src/qml/qml/qqmlopenmetaobject_p.h
+++ b/src/qml/qml/qqmlopenmetaobject_p.h
@@ -83,7 +83,7 @@ public:
 
 protected:
     virtual void propertyCreated(int, QMetaPropertyBuilder &);
-    virtual void clear();
+    void clear() override;
 
 private:
     QQmlOpenMetaObjectTypePrivate *d;
diff --git a/src/qml/qml/qqmltypeloader_p.h b/src/qml/qml/qqmltypeloader_p.h
index abbbf89ea2..b1d6451974 100644
--- a/src/qml/qml/qqmltypeloader_p.h
+++ b/src/qml/qml/qqmltypeloader_p.h
@@ -577,8 +577,8 @@ public:
     void setPriority(int);
 
 protected:
-    virtual void dataReceived(const Data &);
-    virtual void initializeFromCachedUnit(const QQmlPrivate::CachedQmlUnit*);
+    void dataReceived(const Data &) override;
+    void initializeFromCachedUnit(const QQmlPrivate::CachedQmlUnit*) override;
 
 private:
     QString m_content;
diff --git a/src/qml/qml/qqmlvmemetaobject_p.h b/src/qml/qml/qqmlvmemetaobject_p.h
index 9a13e0047d..bb6fede7c8 100644
--- a/src/qml/qml/qqmlvmemetaobject_p.h
+++ b/src/qml/qml/qqmlvmemetaobject_p.h
@@ -83,7 +83,7 @@ public:
     inline QQmlVMEVariantQObjectPtr();
     inline ~QQmlVMEVariantQObjectPtr();
 
-    inline void objectDestroyed(QObject *);
+    inline void objectDestroyed(QObject *) override;
     inline void setGuardedValue(QObject *obj, QQmlVMEMetaObject *target, int index);
 
     QQmlVMEMetaObject *m_target;
diff --git a/src/qml/types/qqmldelegatemodel_p_p.h b/src/qml/types/qqmldelegatemodel_p_p.h
index f4ffdf38aa..07e35d3fd7 100644
--- a/src/qml/types/qqmldelegatemodel_p_p.h
+++ b/src/qml/types/qqmldelegatemodel_p_p.h
@@ -294,7 +294,7 @@ public:
             const QVector<Compositor::Remove> &removes, const QVector<Compositor::Insert> &inserts);
     void itemsChanged(const QVector<Compositor::Change> &changes);
     void emitChanges();
-    void emitModelUpdated(const QQmlChangeSet &changeSet, bool reset);
+    void emitModelUpdated(const QQmlChangeSet &changeSet, bool reset) override;
 
     bool insert(Compositor::insert_iterator &before, const QV4::Value &object, int groups);
 
diff --git a/src/qml/util/qqmladaptormodel_p.h b/src/qml/util/qqmladaptormodel_p.h
index 8e400f9146..78d964236e 100644
--- a/src/qml/util/qqmladaptormodel_p.h
+++ b/src/qml/util/qqmladaptormodel_p.h
@@ -143,7 +143,7 @@ public:
     inline void fetchMore() { return accessors->fetchMore(*this); }
 
 protected:
-    void objectDestroyed(QObject *);
+    void objectDestroyed(QObject *) override;
 };
 
 class QQmlAdaptorModelProxyInterface
diff --git a/src/qmldebug/qqmlenginecontrolclient_p.h b/src/qmldebug/qqmlenginecontrolclient_p.h
index 6affc46ffc..9b4ea3acb1 100644
--- a/src/qmldebug/qqmlenginecontrolclient_p.h
+++ b/src/qmldebug/qqmlenginecontrolclient_p.h
@@ -78,7 +78,7 @@ protected:
     QQmlEngineControlClient(QQmlEngineControlClientPrivate &dd);
 
 private:
-    void messageReceived(const QByteArray &);
+    void messageReceived(const QByteArray &) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/qmldebug/qqmlprofilerclient_p.h b/src/qmldebug/qqmlprofilerclient_p.h
index b4054ed0d9..a328cad26c 100644
--- a/src/qmldebug/qqmlprofilerclient_p.h
+++ b/src/qmldebug/qqmlprofilerclient_p.h
@@ -73,7 +73,7 @@ protected:
     QQmlProfilerClient(QQmlProfilerClientPrivate &dd);
 
 private:
-    virtual void messageReceived(const QByteArray &message);
+    void messageReceived(const QByteArray &message) override;
 
     virtual void traceStarted(qint64 time, int engineId);
     virtual void traceFinished(qint64 time, int engineId);
diff --git a/src/quick/items/qquickdrag_p.h b/src/quick/items/qquickdrag_p.h
index f9faca55e0..06239c7193 100644
--- a/src/quick/items/qquickdrag_p.h
+++ b/src/quick/items/qquickdrag_p.h
@@ -77,7 +77,7 @@ class QQuickDragGrabber
 
         QIntrusiveListNode node;
     protected:
-        void objectDestroyed(QQuickItem *) { delete this; }
+        void objectDestroyed(QQuickItem *) override { delete this; }
     };
 
     typedef QIntrusiveList<Item, &Item::node> ItemList;
diff --git a/src/quick/scenegraph/qsgadaptationlayer_p.h b/src/quick/scenegraph/qsgadaptationlayer_p.h
index 5880c67af0..bf267ccf92 100644
--- a/src/quick/scenegraph/qsgadaptationlayer_p.h
+++ b/src/quick/scenegraph/qsgadaptationlayer_p.h
@@ -141,7 +141,7 @@ public:
 
     virtual void update() = 0;
 
-    virtual void accept(QSGNodeVisitorEx *visitor) { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
+    void accept(QSGNodeVisitorEx *visitor) override { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
 };
 
 
@@ -165,7 +165,7 @@ public:
 
     virtual void update() = 0;
 
-    virtual void accept(QSGNodeVisitorEx *visitor) { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
+    void accept(QSGNodeVisitorEx *visitor) override { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
 };
 
 class Q_QUICK_PRIVATE_EXPORT QSGPainterNode : public QSGVisitableNode
@@ -188,7 +188,7 @@ public:
     virtual void update() = 0;
     virtual QSGTexture *texture() const = 0;
 
-    virtual void accept(QSGNodeVisitorEx *visitor) { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
+    void accept(QSGNodeVisitorEx *visitor) override { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
 };
 
 class Q_QUICK_EXPORT QSGLayer : public QSGDynamicTexture
@@ -231,7 +231,7 @@ public:
 
     virtual void update() = 0;
 
-    virtual void accept(QSGNodeVisitorEx *visitor) { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
+    void accept(QSGNodeVisitorEx *visitor) override { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
 };
 
 #endif
@@ -389,7 +389,7 @@ public:
     void setOwnerElement(QQuickItem *ownerElement) { m_ownerElement = ownerElement; }
     QQuickItem *ownerElement() const { return m_ownerElement; }
 
-    virtual void accept(QSGNodeVisitorEx *visitor) { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
+    void accept(QSGNodeVisitorEx *visitor) override { if (visitor->visit(this)) visitor->visitChildren(this); visitor->endVisit(this); }
 protected:
     QRectF m_bounding_rect;
     QQuickItem *m_ownerElement;
diff --git a/src/quick/scenegraph/qsgbasicglyphnode_p.h b/src/quick/scenegraph/qsgbasicglyphnode_p.h
index 1d09367ea5..0a43d17d2b 100644
--- a/src/quick/scenegraph/qsgbasicglyphnode_p.h
+++ b/src/quick/scenegraph/qsgbasicglyphnode_p.h
@@ -63,16 +63,16 @@ public:
     QSGBasicGlyphNode();
     virtual ~QSGBasicGlyphNode();
 
-    virtual QPointF baseLine() const { return m_baseLine; }
-    virtual void setGlyphs(const QPointF &position, const QGlyphRun &glyphs);
-    virtual void setColor(const QColor &color);
+    QPointF baseLine() const override { return m_baseLine; }
+    void setGlyphs(const QPointF &position, const QGlyphRun &glyphs) override;
+    void setColor(const QColor &color) override;
 
-    virtual void setPreferredAntialiasingMode(AntialiasingMode) { }
-    virtual void setStyle(QQuickText::TextStyle);
-    virtual void setStyleColor(const QColor &);
+    void setPreferredAntialiasingMode(AntialiasingMode) override { }
+    void setStyle(QQuickText::TextStyle) override;
+    void setStyleColor(const QColor &) override;
 
     virtual void setMaterialColor(const QColor &color) = 0;
-    virtual void update() = 0;
+    void update() override = 0;
 
 protected:
     QGlyphRun m_glyphs;
diff --git a/src/quick/scenegraph/qsgcontextplugin_p.h b/src/quick/scenegraph/qsgcontextplugin_p.h
index 08c3d21408..5914b42809 100644
--- a/src/quick/scenegraph/qsgcontextplugin_p.h
+++ b/src/quick/scenegraph/qsgcontextplugin_p.h
@@ -90,10 +90,10 @@ public:
     explicit QSGContextPlugin(QObject *parent = 0);
     virtual ~QSGContextPlugin();
 
-    virtual QStringList keys() const = 0;
+    virtual QStringList keys() const override = 0;
 
-    virtual QQuickTextureFactory *createTextureFactoryFromImage(const QImage &) { return 0; }
-    virtual QSGRenderLoop *createWindowManager() { return 0; }
+    QQuickTextureFactory *createTextureFactoryFromImage(const QImage &) override { return 0; }
+    QSGRenderLoop *createWindowManager() override { return 0; }
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache_p.h b/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache_p.h
index 0fefb95328..57dc4a5d07 100644
--- a/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache_p.h
+++ b/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache_p.h
@@ -72,10 +72,10 @@ public:
     QSGDefaultDistanceFieldGlyphCache(QSGDistanceFieldGlyphCacheManager *man, QOpenGLContext *c, const QRawFont &font);
     virtual ~QSGDefaultDistanceFieldGlyphCache();
 
-    void requestGlyphs(const QSet<glyph_t> &glyphs);
-    void storeGlyphs(const QList<QDistanceField> &glyphs);
-    void referenceGlyphs(const QSet<glyph_t> &glyphs);
-    void releaseGlyphs(const QSet<glyph_t> &glyphs);
+    void requestGlyphs(const QSet<glyph_t> &glyphs) override;
+    void storeGlyphs(const QList<QDistanceField> &glyphs) override;
+    void referenceGlyphs(const QSet<glyph_t> &glyphs) override;
+    void releaseGlyphs(const QSet<glyph_t> &glyphs) override;
 
     bool useTextureResizeWorkaround() const;
     bool useTextureUploadWorkaround() const;
diff --git a/src/quick/scenegraph/qsgdefaultglyphnode_p_p.h b/src/quick/scenegraph/qsgdefaultglyphnode_p_p.h
index caa7dfad07..b0a2788dd8 100644
--- a/src/quick/scenegraph/qsgdefaultglyphnode_p_p.h
+++ b/src/quick/scenegraph/qsgdefaultglyphnode_p_p.h
@@ -71,9 +71,9 @@ public:
     QSGTextMaskMaterial(const QRawFont &font, QFontEngine::GlyphFormat glyphFormat = QFontEngine::Format_None);
     virtual ~QSGTextMaskMaterial();
 
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
-    virtual int compare(const QSGMaterial *other) const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
+    int compare(const QSGMaterial *other) const override;
 
     void setColor(const QColor &c) { m_color = QVector4D(c.redF(), c.greenF(), c.blueF(), c.alphaF()); }
     void setColor(const QVector4D &color) { m_color = color; }
@@ -115,10 +115,10 @@ public:
     void setStyleColor(const QVector4D &color) { m_styleColor = color; }
     const QVector4D &styleColor() const { return m_styleColor; }
 
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
 
-    int compare(const QSGMaterial *other) const;
+    int compare(const QSGMaterial *other) const override;
 
 private:
     QVector2D m_styleShift;
@@ -131,8 +131,8 @@ public:
     QSGOutlinedTextMaterial(const QRawFont &font);
     ~QSGOutlinedTextMaterial() { }
 
-    QSGMaterialType *type() const;
-    QSGMaterialShader *createShader() const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/scenegraph/qsgdistancefieldglyphnode_p.h b/src/quick/scenegraph/qsgdistancefieldglyphnode_p.h
index 22c68558ef..c0c6bda718 100644
--- a/src/quick/scenegraph/qsgdistancefieldglyphnode_p.h
+++ b/src/quick/scenegraph/qsgdistancefieldglyphnode_p.h
@@ -67,19 +67,19 @@ public:
     QSGDistanceFieldGlyphNode(QSGRenderContext *context);
     ~QSGDistanceFieldGlyphNode();
 
-    virtual QPointF baseLine() const { return m_baseLine; }
-    virtual void setGlyphs(const QPointF &position, const QGlyphRun &glyphs);
-    virtual void setColor(const QColor &color);
+    QPointF baseLine() const override { return m_baseLine; }
+    void setGlyphs(const QPointF &position, const QGlyphRun &glyphs) override;
+    void setColor(const QColor &color) override;
 
-    virtual void setPreferredAntialiasingMode(AntialiasingMode mode);
+    void setPreferredAntialiasingMode(AntialiasingMode mode) override;
 
-    virtual void setStyle(QQuickText::TextStyle style);
-    virtual void setStyleColor(const QColor &color);
+    void setStyle(QQuickText::TextStyle style) override;
+    void setStyleColor(const QColor &color) override;
 
-    virtual void update();
-    void preprocess();
+    void update() override;
+    void preprocess() override;
 
-    void invalidateGlyphs(const QVector<quint32> &glyphs);
+    void invalidateGlyphs(const QVector<quint32> &glyphs) override;
 
     void updateGeometry();
 
diff --git a/src/quick/scenegraph/qsgdistancefieldglyphnode_p_p.h b/src/quick/scenegraph/qsgdistancefieldglyphnode_p_p.h
index 38dcf3d307..c13a0898eb 100644
--- a/src/quick/scenegraph/qsgdistancefieldglyphnode_p_p.h
+++ b/src/quick/scenegraph/qsgdistancefieldglyphnode_p_p.h
@@ -63,9 +63,9 @@ public:
     QSGDistanceFieldTextMaterial();
     ~QSGDistanceFieldTextMaterial();
 
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
-    virtual int compare(const QSGMaterial *other) const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
+    int compare(const QSGMaterial *other) const override;
 
     virtual void setColor(const QColor &color);
     const QVector4D &color() const { return m_color; }
@@ -97,9 +97,9 @@ public:
     QSGDistanceFieldStyledTextMaterial();
     ~QSGDistanceFieldStyledTextMaterial();
 
-    virtual QSGMaterialType *type() const = 0;
-    virtual QSGMaterialShader *createShader() const = 0;
-    virtual int compare(const QSGMaterial *other) const;
+    QSGMaterialType *type() const override = 0;
+    QSGMaterialShader *createShader() const override = 0;
+    int compare(const QSGMaterial *other) const override;
 
     void setStyleColor(const QColor &color);
     const QVector4D &styleColor() const { return m_styleColor; }
@@ -114,8 +114,8 @@ public:
     QSGDistanceFieldOutlineTextMaterial();
     ~QSGDistanceFieldOutlineTextMaterial();
 
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
 };
 
 class Q_QUICK_PRIVATE_EXPORT QSGDistanceFieldShiftedStyleTextMaterial : public QSGDistanceFieldStyledTextMaterial
@@ -124,9 +124,9 @@ public:
     QSGDistanceFieldShiftedStyleTextMaterial();
     ~QSGDistanceFieldShiftedStyleTextMaterial();
 
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
-    virtual int compare(const QSGMaterial *other) const;
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
+    int compare(const QSGMaterial *other) const override;
 
     void setShift(const QPointF &shift) { m_shift = shift; }
     const QPointF &shift() const { return m_shift; }
@@ -138,17 +138,17 @@ protected:
 class Q_QUICK_PRIVATE_EXPORT QSGHiQSubPixelDistanceFieldTextMaterial : public QSGDistanceFieldTextMaterial
 {
 public:
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
-    void setColor(const QColor &color) { m_color = QVector4D(color.redF(), color.greenF(), color.blueF(), color.alphaF()); }
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
+    void setColor(const QColor &color) override { m_color = QVector4D(color.redF(), color.greenF(), color.blueF(), color.alphaF()); }
 };
 
 class Q_QUICK_PRIVATE_EXPORT QSGLoQSubPixelDistanceFieldTextMaterial : public QSGDistanceFieldTextMaterial
 {
 public:
-    virtual QSGMaterialType *type() const;
-    virtual QSGMaterialShader *createShader() const;
-    void setColor(const QColor &color) { m_color = QVector4D(color.redF(), color.greenF(), color.blueF(), color.alphaF()); }
+    QSGMaterialType *type() const override;
+    QSGMaterialShader *createShader() const override;
+    void setColor(const QColor &color) override { m_color = QVector4D(color.redF(), color.greenF(), color.blueF(), color.alphaF()); }
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/scenegraph/qsgthreadedrenderloop_p.h b/src/quick/scenegraph/qsgthreadedrenderloop_p.h
index 0ab83b444a..32bfcb7148 100644
--- a/src/quick/scenegraph/qsgthreadedrenderloop_p.h
+++ b/src/quick/scenegraph/qsgthreadedrenderloop_p.h
@@ -68,29 +68,29 @@ public:
     QSGThreadedRenderLoop();
     ~QSGThreadedRenderLoop();
 
-    void show(QQuickWindow *) {}
-    void hide(QQuickWindow *);
+    void show(QQuickWindow *) override {}
+    void hide(QQuickWindow *) override;
 
-    void windowDestroyed(QQuickWindow *window);
-    void exposureChanged(QQuickWindow *window);
+    void windowDestroyed(QQuickWindow *window) override;
+    void exposureChanged(QQuickWindow *window) override;
 
-    QImage grab(QQuickWindow *);
+    QImage grab(QQuickWindow *) override;
 
-    void update(QQuickWindow *window);
-    void maybeUpdate(QQuickWindow *window);
-    void handleUpdateRequest(QQuickWindow *window);
+    void update(QQuickWindow *window) override;
+    void maybeUpdate(QQuickWindow *window) override;
+    void handleUpdateRequest(QQuickWindow *window) override;
 
-    QSGContext *sceneGraphContext() const;
-    QSGRenderContext *createRenderContext(QSGContext *) const;
+    QSGContext *sceneGraphContext() const override;
+    QSGRenderContext *createRenderContext(QSGContext *) const override;
 
-    QAnimationDriver *animationDriver() const;
+    QAnimationDriver *animationDriver() const override;
 
-    void releaseResources(QQuickWindow *window);
+    void releaseResources(QQuickWindow *window) override;
 
-    bool event(QEvent *);
-    void postJob(QQuickWindow *window, QRunnable *job);
+    bool event(QEvent *) override;
+    void postJob(QQuickWindow *window, QRunnable *job) override;
 
-    bool interleaveIncubation() const;
+    bool interleaveIncubation() const override;
 
 public Q_SLOTS:
     void animationStarted();
diff --git a/src/quick/scenegraph/qsgwindowsrenderloop_p.h b/src/quick/scenegraph/qsgwindowsrenderloop_p.h
index 9e5d7f04d3..1940a66af2 100644
--- a/src/quick/scenegraph/qsgwindowsrenderloop_p.h
+++ b/src/quick/scenegraph/qsgwindowsrenderloop_p.h
@@ -70,31 +70,31 @@ public:
     explicit QSGWindowsRenderLoop();
     ~QSGWindowsRenderLoop();
 
-    void show(QQuickWindow *window);
-    void hide(QQuickWindow *window);
+    void show(QQuickWindow *window) override;
+    void hide(QQuickWindow *window) override;
 
-    void windowDestroyed(QQuickWindow *window);
+    void windowDestroyed(QQuickWindow *window) override;
 
-    void exposureChanged(QQuickWindow *window);
-    QImage grab(QQuickWindow *window);
+    void exposureChanged(QQuickWindow *window) override;
+    QImage grab(QQuickWindow *window) override;
 
-    void update(QQuickWindow *window);
-    void maybeUpdate(QQuickWindow *window);
+    void update(QQuickWindow *window) override;
+    void maybeUpdate(QQuickWindow *window) override;
 
-    QAnimationDriver *animationDriver() const { return m_animationDriver; }
+    QAnimationDriver *animationDriver() const override { return m_animationDriver; }
 
-    QSGContext *sceneGraphContext() const { return m_sg; }
-    QSGRenderContext *createRenderContext(QSGContext *) const;
+    QSGContext *sceneGraphContext() const override { return m_sg; }
+    QSGRenderContext *createRenderContext(QSGContext *) const override;
 
-    void releaseResources(QQuickWindow *) { }
+    void releaseResources(QQuickWindow *) override { }
 
     void render();
     void renderWindow(QQuickWindow *window);
 
-    bool event(QEvent *event);
+    bool event(QEvent *event) override;
     bool anyoneShowing() const;
 
-    bool interleaveIncubation() const;
+    bool interleaveIncubation() const override;
 
 public Q_SLOTS:
     void started();
diff --git a/src/quick/scenegraph/util/qsgsimplematerial.h b/src/quick/scenegraph/util/qsgsimplematerial.h
index 01f98767fd..c14ba506ec 100644
--- a/src/quick/scenegraph/util/qsgsimplematerial.h
+++ b/src/quick/scenegraph/util/qsgsimplematerial.h
@@ -48,7 +48,7 @@ template <typename State>
 class QSGSimpleMaterialShader : public QSGMaterialShader
 {
 public:
-    void initialize() {
+    void initialize() override {
         QSGMaterialShader::initialize();
 #ifndef QT_NO_OPENGL
         m_id_matrix = program()->uniformLocation(uniformMatrixName());
@@ -74,7 +74,7 @@ public:
     const char *uniformMatrixName() const { return "qt_Matrix"; }
     const char *uniformOpacityName() const { return "qt_Opacity"; }
 
-    void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial);
+    void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override;
 
     virtual void updateState(const State *newState, const State *oldState) = 0;
 
@@ -82,7 +82,7 @@ public:
 
     virtual QList<QByteArray> attributes() const = 0;
 
-    char const *const *attributeNames() const
+    char const *const *attributeNames() const override
     {
         if (m_attribute_pointers.size())
             return m_attribute_pointers.constData();
diff --git a/src/quick/util/qquickstate_p_p.h b/src/quick/util/qquickstate_p_p.h
index af97390efb..eba1dabecf 100644
--- a/src/quick/util/qquickstate_p_p.h
+++ b/src/quick/util/qquickstate_p_p.h
@@ -217,7 +217,7 @@ public:
             setObject(static_cast<QQuickStateOperation *>(obj));
         }
         QList<OperationGuard> *list;
-        void objectDestroyed(QQuickStateOperation *) {
+        void objectDestroyed(QQuickStateOperation *) override {
             // we assume priv will always be destroyed after objectDestroyed calls
             list->removeOne(*this);
         }
diff --git a/tools/qmleasing/mainwindow.h b/tools/qmleasing/mainwindow.h
index 9af5c8050c..7ca4dbfd5c 100644
--- a/tools/qmleasing/mainwindow.h
+++ b/tools/qmleasing/mainwindow.h
@@ -51,9 +51,9 @@ public slots:
     void importData(int result);
 
 protected:
-    virtual void moveEvent(QMoveEvent *event);
-    virtual void resizeEvent(QResizeEvent *event);
-    virtual void closeEvent(QCloseEvent *event);
+    void moveEvent(QMoveEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void closeEvent(QCloseEvent *event) override;
     void initQml();
 
 private:
diff --git a/tools/qmleasing/splineeditor.h b/tools/qmleasing/splineeditor.h
index 243e199cd0..f21713d6a7 100644
--- a/tools/qmleasing/splineeditor.h
+++ b/tools/qmleasing/splineeditor.h
@@ -75,12 +75,12 @@ public slots:
     void setEasingCurve(const QString &code);
 
 protected:
-    void paintEvent(QPaintEvent *);
-    void mousePressEvent(QMouseEvent *);
-    void mouseMoveEvent(QMouseEvent *);
-    void mouseReleaseEvent(QMouseEvent *);
+    void paintEvent(QPaintEvent *) override;
+    void mousePressEvent(QMouseEvent *) override;
+    void mouseMoveEvent(QMouseEvent *) override;
+    void mouseReleaseEvent(QMouseEvent *) override;
 #ifndef QT_NO_CONTEXTMENU
-    void contextMenuEvent(QContextMenuEvent *);
+    void contextMenuEvent(QContextMenuEvent *) override;
 #endif // QT_NO_CONTEXTMENU
 
     void invalidate();
diff --git a/tools/qmlprofiler/qmlprofilerclient.h b/tools/qmlprofiler/qmlprofilerclient.h
index 1da04db42a..a04a412bb0 100644
--- a/tools/qmlprofiler/qmlprofilerclient.h
+++ b/tools/qmlprofiler/qmlprofilerclient.h
@@ -50,24 +50,24 @@ signals:
     void error(const QString &error);
 
 private:
-    virtual void stateChanged(State state);
+    void stateChanged(State state) override;
 
-    void traceStarted(qint64 time, int engineId);
-    void traceFinished(qint64 time, int engineId);
-    void rangeStart(QQmlProfilerDefinitions::RangeType type, qint64 startTime);
-    void rangeData(QQmlProfilerDefinitions::RangeType type, qint64 time, const QString &data);
+    void traceStarted(qint64 time, int engineId) override;
+    void traceFinished(qint64 time, int engineId) override;
+    void rangeStart(QQmlProfilerDefinitions::RangeType type, qint64 startTime) override;
+    void rangeData(QQmlProfilerDefinitions::RangeType type, qint64 time, const QString &data) override;
     void rangeLocation(QQmlProfilerDefinitions::RangeType type, qint64 time,
-                       const QQmlEventLocation &location);
-    void rangeEnd(QQmlProfilerDefinitions::RangeType type, qint64 endTime);
-    void animationFrame(qint64 time, int frameRate, int animationCount, int threadId);
+                       const QQmlEventLocation &location) override;
+    void rangeEnd(QQmlProfilerDefinitions::RangeType type, qint64 endTime) override;
+    void animationFrame(qint64 time, int frameRate, int animationCount, int threadId) override;
     void sceneGraphEvent(QQmlProfilerDefinitions::SceneGraphFrameType type, qint64 time,
                          qint64 numericData1, qint64 numericData2, qint64 numericData3,
-                         qint64 numericData4, qint64 numericData5);
+                         qint64 numericData4, qint64 numericData5) override;
     void pixmapCacheEvent(QQmlProfilerDefinitions::PixmapEventType type, qint64 time,
-                          const QString &url, int numericData1, int numericData2);
-    void memoryAllocation(QQmlProfilerDefinitions::MemoryType type, qint64 time, qint64 amount);
-    void inputEvent(QQmlProfilerDefinitions::InputEventType type, qint64 time, int a, int b);
-    void complete();
+                          const QString &url, int numericData1, int numericData2) override;
+    void memoryAllocation(QQmlProfilerDefinitions::MemoryType type, qint64 time, qint64 amount) override;
+    void inputEvent(QQmlProfilerDefinitions::InputEventType type, qint64 time, int a, int b) override;
+    void complete() override;
 };
 
 #endif // QMLPROFILERCLIENT_H