Hello ,

I've got a crash with source produced by scc.

this is a small example to explain my problem :

//#######################cut here
//controller.scxml

<?xml version="1.0" encoding="ISO-8859-1"?>
<scxml xmlns="http://www.w3.org/2005/07/scxml&quot;
xmlns:Qt="http://www.qtsoftware.com scxml-ext"
initial="test">

<state id="test">
<transition event="test(bool)" cond="_event.data[0].toBool()" target="test" />
</state>
</scxml>

//#######################cut here
//main.cpp :

#include <QApplication>
#include "sc_controller.h"

class Test : public SMClass_controller
{
Q_OBJECT
public:
Test(QObject* o = NULL):SMClass_controller(o) {
setupStateMachine();
start();
QTimer::singleShot(5000,this,SLOT(test()));
}
public slots:
void test() {
event_test(true);
}
};

int main(int argc, char *argv[]) {
QApplication a(argc, argv);
Test t;
return a.exec();
}
#include <main.moc>
//#######################cut here

This example produce a crash when trying to execute : cond="_event.data[0].toBool()"

$ gdb -q ./test_scxml
Reading symbols for shared libraries ..... done
(gdb) r
Starting program: /Users/hsivank/Desktop/test_scxml/test_scxml
Reading symbols for shared libraries .++++.............................................................................................. done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
ASSERT failure in QList<T>::operator[]: "index out of range", file /opt/local/libexec/qt4-mac/include/QtCore/qlist.h, line 447

Program received signal SIGABRT, Aborted.
0x00007fff87286fe6 in __kill ()
(gdb) bt
#0 0x00007fff87286fe6 in __kill ()
#1 0x00007fff87327e32 in abort ()
#2 0x0000000100b1cdef in qt_message_output ()
#3 0x0000000100b1cf88 in qt_message ()
#4 0x0000000100b1d159 in qFatal ()
#5 0x0000000100b6764e in qt_assert_x ()
#6 0x000000010000458e in QList<QVariant>::operator[] (this=0x7fff5fbff7b8, i=0) at qlist.h:447
#7 0x000000010000460c in SMClass_controller::testCondition_T430966940870 (this=0x7fff5fbff798) at sc_controller.h:67
#8 0x000000010000339c in (anonymous namespace)::Transition_T430966940870::eventTest (this=0x100fab410, e=0x10211ad60) at sc_controller.h:116
#9 0x0000000100c1fabe in QAbstractTransitionPrivate::callEventTest ()
#10 0x0000000100c17122 in QStateMachinePrivate::selectTransitions ()
#11 0x0000000100c172fa in QStateMachinePrivate::_q_process ()
#12 0x0000000100c17833 in QStateMachinePrivate::processEvents ()
#13 0x0000000100c18f6c in QStateMachinePrivate::handleTransitionSignal ()
#14 0x0000000100c138a5 in QSignalEventGenerator::qt_metacall ()
#15 0x0000000100b51138 in QMetaObject::metacall ()
#16 0x0000000100b53707 in QMetaObject::activate ()
#17 0x0000000100004906 in SMClass_controller::event_test (this=0x7fff5fbff798, _t1=true) at moc_sc_controller.cpp:89
#18 0x0000000100003b62 in Test::test (this=0x7fff5fbff798) at main.cpp:21
#19 0x0000000100003153 in Test::qt_metacall (this=0x7fff5fbff798, _c=InvokeMetaMethod, _id=0, _a=0x7fff5fbfde30) at main.moc:71
#20 0x0000000100b51138 in QMetaObject::metacall ()
#21 0x0000000100b53707 in QMetaObject::activate ()
#22 0x0000000100c01365 in QSingleShotTimer::timerEvent ()
#23 0x0000000100bfdbf1 in QObject::event ()
#24 0x000000010007592a in QApplicationPrivate::notify_helper ()
#25 0x0000000100076d22 in QApplication::notify ()
#26 0x0000000100b502e8 in QCoreApplication::notifyInternal ()
#27 0x0000000100074e78 in qt_sendSpontaneousEvent ()
#28 0x0000000100038c63 in QEventDispatcherMacPrivate::activateTimer ()
#29 0x00007fff8869da58 in __CFRunLoopRun ()
#30 0x00007fff8869bc2f in CFRunLoopRunSpecific ()
#31 0x00007fff8422ea4e in RunCurrentEventLoopInMode ()
#32 0x00007fff8422e853 in ReceiveNextEventCommon ()
#33 0x00007fff8422e70c in BlockUntilNextEventMatchingListInMode ()
#34 0x00007fff835ef1f2 in _DPSNextEvent ()
#35 0x00007fff835eeb41 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] ()
#36 0x00007fff835b4747 in -[NSApplication run] ()
#37 0x0000000100039cd2 in QEventDispatcherMac::processEvents ()
#38 0x0000000100bf005a in QEventLoop::processEvents ()
#39 0x0000000100bf01be in QEventLoop::exec ()
#40 0x0000000100bf15a8 in QCoreApplication::exec ()
#41 0x0000000100077418 in QApplication::exec ()
#42 0x0000000100002d7c in main (argc=1, argv=0x7fff5fbff868) at main.cpp:31
(gdb)

=> _event.data is empty ...

looking at scc/scc.xslt:271, it seems that beginSelectTransitions(QEvent *event) is added *IF* Qt:property is present in scxml file

I would like to know if there is any reason to not always add beginSelectTransitions(QEvent *event) ?

Thanks a lot in advance.

PS : scxml is realy a cool feature for Qt :-)