Add a freeze() method to QQmlPropertyMap

After freezing a QQmlPropertyMap you cannot add any more properties, but
in turn the property access is cached, and therefore faster.

Task-number: QTBUG-57792
Change-Id: I2c6d768039c3b59eb2411194e463ee0de55f8bed
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 5 insertions, 2 deletions

diff --git a/src/qml/qml/qqmlopenmetaobject_p.h b/src/qml/qml/qqmlopenmetaobject_p.h
index f6397c8c59..47bba085b5 100644
--- a/src/qml/qml/qqmlopenmetaobject_p.h
+++ b/src/qml/qml/qqmlopenmetaobject_p.h
@@ -93,8 +93,8 @@ class QQmlOpenMetaObjectPrivate;
 class Q_QML_PRIVATE_EXPORT QQmlOpenMetaObject : public QAbstractDynamicMetaObject
 {
 public:
-    QQmlOpenMetaObject(QObject *, const QMetaObject * = nullptr, bool = true);
-    QQmlOpenMetaObject(QObject *, QQmlOpenMetaObjectType *, bool = true);
+    QQmlOpenMetaObject(QObject *, const QMetaObject * = nullptr);
+    QQmlOpenMetaObject(QObject *, QQmlOpenMetaObjectType *);
     ~QQmlOpenMetaObject() override;
 
     QVariant value(const QByteArray &) const;
@@ -115,6 +115,9 @@ public:
     // longer automatically called for new properties.
     void setCached(bool);
 
+    bool autoCreatesProperties() const;
+    void setAutoCreatesProperties(bool autoCreate);
+
     QQmlOpenMetaObjectType *type() const;
 
     void emitPropertyNotification(const QByteArray &propertyName);