On 09:20 Thu 31 Mar , Phil Thompson wrote:
> You can lie to SIP as much as you want. For example if B is derived from A
> in C++ you can tell SIP that it doesn't derive from anything and you won't
> get access to any of A's methods from Python. You could even say that B
> contained some of A's methods. The main problem area is virtuals (if you
> want to expose them) which really have to be in the right class (including
> all their reimplementations).
I understand. This means:
1/ I can remove superclass from a class definition
In which case, I can add methods to a class wich are actually in the superclass
2/ I can create custom methods which are not in the original C++ library
But of course the motivation should be to stay as close as possible to the C++
declaration.
(Given that this is core concept, it may be useful to have a test case in the
doc!)
So I get it, with SIP we can lie through your teeth.
But as my wife once told me, I am not a very good liair.
And that's confirmed by SIP...
$ grep UserMessage *
CaFramework.sip://sip %Include UserMessage.sip
QCaObject.sip://sip QCaObject( const QString& recordName, QObject
*eventObject, UserMessage* userMessageIn );
QCaObject.sip://sip void setUserMessage( UserMessage* userMessageIn );
QCaObject.sip://sip void initialise( const QString& newRecordName, QObject
*newEventHandler, UserMessage* userMessageIn );
QCaWidget.sip://sip UserMessage userMessage;
but
g++ -c -pipe -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Wall -W
-D_REENTRANT -DNDEBUG -DQT_NO_DEBUG -DQT_CORE_LIB -DQT_GUI_LIB -I.
-I/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//widgets/include
-I/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include
-I/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//api/include
-I/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//plugins/include
-I/usr/include/QtCore
-I/usr/include/QtGui -I/usr/include/python2.6 -I/usr/lib64/qt4/mkspecs/default
-I/usr/include -I/usr/X11R6/include -o sipCaFrameworkQCaWidget.o
sipCaFrameworkQCaWidget.cpp
In file included from
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/QCaObject.h:46,
from
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/QCaWidget.h:36,
from QCaWidget.sip:4:
/usr/include/QtCore/qobject.h: In copy constructor
'UserMessage::UserMessage(const UserMessage&)':
/usr/include/QtCore/qobject.h:309: error: 'QObject::QObject(const QObject&)' is
private
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/UserMessage.h:38:
error: within this context
In file included from QCaWidget.sip:4:
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/QCaWidget.h:
In copy constructor 'QCaWidget::QCaWidget(const QCaWidget&)':
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/QCaWidget.h:43:
note: synthesized method 'UserMessage::UserMessage(const UserMessage&)' first
required here
sipCaFrameworkQCaWidget.cpp: In constructor 'sipQCaWidget::sipQCaWidget(const
QCaWidget&)':
sipCaFrameworkQCaWidget.cpp:59: note: synthesized method
'QCaWidget::QCaWidget(const QCaWidget&)' first required here
sipCaFrameworkQCaWidget.cpp: In function 'void*
init_QCaWidget(sipSimpleWrapper*, PyObject*, PyObject*, PyObject**, PyObject**,
PyObject**)':
sipCaFrameworkQCaWidget.cpp:281: error: cannot allocate an object of abstract
type 'sipQCaWidget'
sipCaFrameworkQCaWidget.cpp:22: note: because the following virtual functions
are pure within 'sipQCaWidget':
/home/cls1fs/epics/epics2//workspace/epicsqt/epicsqt-1.1.1-src//ca_framework//data/include/QCaWidget.h:60:
note: virtual qcaobject::QCaObject* QCaWidget::createQcaItem(unsigned int)
sipCaFrameworkQCaWidget.cpp:296: error: cannot allocate an object of abstract
type 'sipQCaWidget'
sipCaFrameworkQCaWidget.cpp:22: note: since type 'sipQCaWidget' has pure
virtual functions
make: *** [sipCaFrameworkQCaWidget.o] Error 1
make: Leaving directory
`/home/cls1fs/epics/epics2/workspace/epicsqt/epicsqt-1.1.1-src/ca_framework/sip/sipcode'
Well, it seems I have several different errors...
--
Emmanuel
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