Return a plain QMetaObject* from toDynamicMetaObject()

The only place where we use it, we swiftly cast it to QMetaObject*
anyway. Generating an object with virtual methods, only to then cast to
its non-virtual base type is dangerous. Also, if we are required to
return a QAbstractDynamicMetaObject from a method of
QDynamicMetaObjectData, we cannot implement QDynamicMetaObjectData
without also implementing QAbstractDynamicMetaObject. This indirectly
forces us to copy metaobjects around as we cannot wrap an existing
metaobject into a QDynamicMetaObjectData subclass.

Copying metaobjects around makes QMetaObject::inherits() unusable
because inherits() assumes identity is determined by identity of the
pointer.

Change-Id: Icbe697efa6fd66649eef3c91260c95cda62e3c90
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

0 files changed, 0 insertions, 0 deletions