Const'ify variable when possible

plugins/messageviewerplugins/createtodoplugin/createtodojob.h

@@ -30,7 +30,7 @@ private Q_SLOTS:
 private:
     void createTodo();
     Akonadi::Item mItem;
-    Akonadi::Collection mCollection;
+    const Akonadi::Collection mCollection;
     KCalendarCore::Todo::Ptr mTodoPtr;
 };
 }

plugins/plasma/pimeventsplugin/eventdatavisitor.h

@@ -30,9 +30,9 @@ protected:
 
     QVector<CalendarEvents::EventData> explodeIncidenceOccurences(const CalendarEvents::EventData &ed, const KCalendarCore::Incidence::Ptr &incidence, bool &ok);
 protected:
-    PimDataSource *mDataSource = nullptr;
-    QDate mStart;
-    QDate mEnd;
+    PimDataSource *const mDataSource;
+    const QDate mStart;
+    const QDate mEnd;
 };
 
 class EventDataVisitor : public BaseEventDataVisitor

sieveeditor/imapfoldercompletion/selectimapfolderwidget.h

@@ -38,7 +38,7 @@ private:
     void slotCurrentChanged(const QModelIndex &current, const QModelIndex &previous);
     void slotRefreshImap();
 
-    KSieveUi::SieveImapAccountSettings mAccount;
+    const KSieveUi::SieveImapAccountSettings mAccount;
     QLineEdit *mSearchLineEdit = nullptr;
     SelectImapFolderTreeView *mTreeView = nullptr;
     QStandardItemModel *mModel = nullptr;

sieveeditor/imapfoldercompletion/selectimaplineeditcompletermodel.cpp

@@ -12,8 +12,8 @@
 
 SelectImapLineEditCompleterModel::SelectImapLineEditCompleterModel(const KSieveUi::SieveImapAccountSettings &account, QObject *parent)
     : QObject(parent)
+    , mFlatProxy(new KDescendantsProxyModel(this))
 {
-    mFlatProxy = new KDescendantsProxyModel(this);
     mFlatProxy->setDisplayAncestorData(true);
     mFlatProxy->setAncestorSeparator(QStringLiteral("/"));
     bool modelIsInitalized = false;

sieveeditor/imapfoldercompletion/selectimaplineeditcompletermodel.h

@@ -20,9 +20,9 @@ public:
     explicit SelectImapLineEditCompleterModel(const KSieveUi::SieveImapAccountSettings &account, QObject *parent = nullptr);
     ~SelectImapLineEditCompleterModel();
 
-    QAbstractProxyModel *completerModel() const;
+    Q_REQUIRED_RESULT QAbstractProxyModel *completerModel() const;
 private:
-    KDescendantsProxyModel *mFlatProxy = nullptr;
+    KDescendantsProxyModel *const mFlatProxy;
 };
 
 #endif // SELECTIMAPLINEEDITCOMPLETERMODEL_H