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  1. Qt
  2. QTBUG-81945

[REG 5.14.1 -> 5.15] "Trying to construct an instance of an invalid type" when using array of strings for ListView model

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    • 19cc92d170eaba83812be2abda15348ecfa2f072 (qt/qtdeclarative/5.14)

    Description

      Regression from 5.14.

      Also seems to be triggered by an array of JS objects.

      import QtQuick 2.12
import QtQuick.Window 2.12

Window {
    id: window
    width: 640
    height: 800
    visible: true
    color: "black"

    ListView {
        id: listView
        model: ["A", "B", "C"]
    }
}

      Call stack:

      1   (anonymous namespace)::customConstruct(QVariant::Private *, void const *)                                                                                                     qvariant.cpp             1459 0x1073bd5af 
2   QVariant::create(int, void const *)                                                                                                                                           qvariant.cpp             1811 0x10733bc8b 
3   QVariant::QVariant(int, void const *)                                                                                                                                         qvariant.cpp             2132 0x10733c7f3 
4   QVariant::QVariant(int, void const *)                                                                                                                                         qvariant.cpp             2132 0x10733c883 
5   toVariant(QV4::ExecutionEngine *, QV4::Value const&, int, bool, QSet<QV4::Heap::Object *> *)                                                                                  qv4engine.cpp            1522 0x104545fe1 
6   QV4::ExecutionEngine::toVariant(QV4::Value const&, int, bool)                                                                                                                 qv4engine.cpp            1452 0x104544e44 
7   QJSValue::toVariant() const                                                                                                                                                   qjsvalue.cpp             713  0x1044ebbc2 
8   QQuickItemView::setModel(QVariant const&)                                                                                                                                     qquickitemview.cpp       190  0x100a66b9d 
9   QQuickItemView::qt_static_metacall(QObject *, QMetaObject::Call, int, void * *)                                                                                               moc_qquickitemview_p.cpp 892  0x100a9c248 
10  QQmlPropertyData::writeProperty(QObject *, void *, QFlags<QQmlPropertyData::WriteFlag>) const                                                                                 qqmlpropertydata_p.h     375  0x104d2c86c 
11  QQmlPropertyPrivate::write(QObject *, QQmlPropertyData const&, QVariant const&, QQmlContextData *, QFlags<QQmlPropertyData::WriteFlag>)                                       qqmlproperty.cpp         1300 0x104d29f50 
12  QQmlPropertyPrivate::writeValueProperty(QObject *, QQmlPropertyData const&, QQmlPropertyData const&, QVariant const&, QQmlContextData *, QFlags<QQmlPropertyData::WriteFlag>) qqmlproperty.cpp         1209 0x104d27586 
13  QQmlBinding::slowWrite(QQmlPropertyData const&, QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyData::WriteFlag>)                                        qqmlbinding.cpp          474  0x104ee8b57 
14  GenericBinding<0>::write(QV4::Value const&, bool, QFlags<QQmlPropertyData::WriteFlag>)                                                                                        qqmlbinding.cpp          335  0x104efc3c6 
15  QQmlNonbindingBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&)                                             qqmlbinding.cpp          258  0x104ef071a 
16  QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>)                                                                                                                      qqmlbinding.cpp          194  0x104ee64a6 
17  QQmlBinding::setEnabled(bool, QFlags<QQmlPropertyData::WriteFlag>)                                                                                                            qqmlbinding.cpp          566  0x104eea28e 
18  non-virtual thunk to QQmlBinding::setEnabled(bool, QFlags<QQmlPropertyData::WriteFlag>)                                                                                       qqmlbinding.cpp               0x104eeabac 
19  QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&)                                                                                                                      qqmlobjectcreator.cpp    1389 0x104f47c62 
20  QQmlComponentPrivate::complete(QQmlEnginePrivate *, QQmlComponentPrivate::ConstructionState *)                                                                                qqmlcomponent.cpp        988  0x104d3d75f 
... <More>

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          Bug - A problem which impairs or prevents the functions of the product. QTBUG-82136 REG->5.15Alpha: QtQuickControl2 gallery warns "Trying to construct an instance of an invalid type, type id: 1073741823"

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              fabiankosmale Fabian Kosmale
              mitch_curtis Mitch Curtis
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                Updated:
                Resolved:

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