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  1. Qt
  2. QTBUG-40745

QQuickWidget crashes on delete when it sets itself as a context property.

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    Description

      When a QQuickWidget has a context property as itself, the program crashes when the QQuickWidget is deleted.

      * thread #1: tid = 0xd347c, 0x00000001017ac00b QtQml_debug`QQmlData::destroyed(this=0x0000000104b4af60, object=0x0000000104b45df0) + 59 at qqmlengine.cpp:1583, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x50)
    frame #0: 0x00000001017ac00b QtQml_debug`QQmlData::destroyed(this=0x0000000104b4af60, object=0x0000000104b45df0) + 59 at qqmlengine.cpp:1583
   1579	
   1580	void QQmlData::destroyed(QObject *object)
   1581	{
   1582	    if (nextContextObject)
-> 1583	        nextContextObject->prevContextObject = prevContextObject;
   1584	    if (prevContextObject)
   1585	        *prevContextObject = nextContextObject;
   1586	
   1587	    QQmlAbstractBinding *binding = bindings;
      main.cpp
      #include <QApplication>
#include <QQmlContext>
#include <QQuickWidget>

int main(int argc, char** argv)
{
    QApplication app(argc, argv);

    QQuickWidget* widget = new QQuickWidget();
    widget->rootContext()->setContextProperty("widget", widget);
    widget->setSource(QUrl("qrc:/widget.qml"));
    widget->deleteLater();

    return app.exec();
}
      widget.qml
      import QtQuick 2.2

Rectangle {
    Connections {
        target: widget
    }
}

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-54313 QQuickWidget: crash on application exit

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-54076 [Reg 5.5-5.6]: QtQuickWidget crashes on destruction if context property is set to itself

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              srutledg Shawn Rutledge
              dwchung Dan Chung
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              Dates

                Created:
                Updated:
                Resolved:

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