Specify parameters of type registration in class declarations

Using this technique we can automatically register all necessary
revisions and minor versions of a type, using the metaobject system.
This greatly reduces the potential for mistakes and resulting
incompatibilities between versions of imports.

We assume that for each type we need to register all revisions of its
super types and its attached type, and that the revisions match. That
is, if you import version X of type A, you will also get version X of
its attached type and of any super types. As we previously didn't take
these dependencies into account when manually registering the types, a
number of extra revisions are now registered for some types.

Potentially, we can now generate the qmltypes files at compile time,
using moc.

Change-Id: I7abb8a5c39f5e63ad1a0cb41a783f2c91909491b
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/qml/types/qqmlconnections_p.h b/src/qml/types/qqmlconnections_p.h
index 5d28e8e8be..7bf688cf75 100644
--- a/src/qml/types/qqmlconnections_p.h
+++ b/src/qml/types/qqmlconnections_p.h
@@ -71,6 +71,7 @@ class Q_AUTOTEST_EXPORT QQmlConnections : public QObject, public QQmlParserStatu
     Q_PROPERTY(QObject *target READ target WRITE setTarget NOTIFY targetChanged)
     Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged REVISION 3)
     Q_PROPERTY(bool ignoreUnknownSignals READ ignoreUnknownSignals WRITE setIgnoreUnknownSignals)
+    QML_NAMED_ELEMENT(Connections)
 
 public:
     QQmlConnections(QObject *parent=nullptr);
@@ -106,6 +107,13 @@ public:
     void applyBindings(QObject *object, const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override;
 };
 
+// TODO: We won't need Connections to be a custom type anymore once we can drop the
+//       automatic signal handler inference from undeclared properties.
+template<>
+inline QQmlCustomParser *qmlCreateCustomParser<QQmlConnections>()
+{
+    return new QQmlConnectionsParser;
+}
 
 QT_END_NAMESPACE