QObjectList registered twice when used together with QtScript

[JulienMaille]

Getting this error on init: QMetaType::registerTypedef: -- Type name 'QObjectList' previously registered as typedef of 'QObjectList' [1032], now registering as typedef of 'QList ' [1074]. because I have a project that still has bits of QtScript and pythonqt at the same time.

From qscriptengine.cpp

QScriptEnginePrivate::QScriptEnginePrivate()
    : originalGlobalObjectProxy(0), currentFrame(0),
      qobjectPrototype(0), qmetaobjectPrototype(0), variantPrototype(0),
      activeAgent(0), agentLineNumber(-1),
      registeredScriptValues(0), freeScriptValues(0), freeScriptValuesCount(0),
      registeredScriptStrings(0), processEventsInterval(-1), inEval(false),
      uncaughtExceptionLineNumber(-1)
{
    qMetaTypeId<QScriptValue>();
    qMetaTypeId<QList<int> >();
#ifndef QT_NO_QOBJECT
    qMetaTypeId<QObjectList>();
#endif

and

pythonqt/src/PythonQt.cpp

Line 124 in f63bee1

qRegisterMetaType<QObjectList>("QObjectList");

[usiems]

Interesting. Which Qt version is this? I looked into the implementation of qRegisterMetaType for Qt 6.9.3, and had the impression that getting an error message when registering the same type twice shouldn't be easily possible. But the code may have changed across Qt versions. What I also could imagine is that Qt and PythonQt have been compiled with different compilers in your case, which could explain the difference in the detected type name. (In Qt 6.9.3 QMetaType uses the __FUNCSIG__ or __PRETTY_FUNCTION__ macros to extract the type name via a helper template.)

[JulienMaille]

That's Qt5.15.18 and both Qt and PythonQt have been compiled with it