Details
-
Bug
-
Resolution: Done
-
P1: Critical
-
4.7.4
-
None
Description
If an attached object has an enum-type property, the enum values can't be referenced using the Class.EnumValue syntax; instead, it has to be referenced as a string.
Attached is a modified version of the example under declarative/cppextensions/referenceexamples/attached.
The BirthdayPartyAttached class now has the property
Q_PROPERTY(SomeEnum someEnumValue READ someEnumValue WRITE setSomeEnumValue)
and includes this enum:
Q_ENUMS(SomeEnum)
...
enum SomeEnum {
SomeEnumValueA,
SomeEnumValueB
};
For each Girl or Boy object in example.qml, this will work:
Girl {
// the stored attached property can be found to be QVariant(int, 1) which is correct
BirthdayParty.someEnumValue: "SomeEnumValueB"
}
but, this will not:
Girl {
// the stored attached property can be found to be QVariant(int, 0) which is wrong
BirthdayParty.someEnumValue: BirthdayParty.SomeEnumValueB
}
Additionally, if the BirthdayParty.someEnumValue value is not set for the second entry ("Jack Smith") the example crashes with the following backtrace:
"Bob Jones" is having a birthday! He is inviting: "Leo Hodges" RSVP date: Mon Jul 6 2009 someEnumValue: QVariant(int, 1) "Jack Smith" RSVP date: Hasn't RSVP'd Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000008 0x00000001019bf468 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8) at qscopedpointer.h:135 135 return d; (gdb) bt #0 0x00000001019bf468 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8) at qscopedpointer.h:135 #1 0x0000000101b44581 in qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (p=@0x8) at qglobal.h:2369 #2 0x0000000101b4f34f in QObject::d_func (this=0x0) at qobject.h:116 #3 0x0000000101b45fdd in QObject::property (this=0x0, name=0x10000b7f5 "someEnumValue") at kernel/qobject.cpp:3556 #4 0x0000000100004eb2 in main (argc=1, argv=0x7fff5fbff5a8) at main.cpp:85
Attachments
Issue Links
- relates to
-
-
- Closed
-