1
我有一个QML/C++混合应用程序，它相当复杂，只有少数线程在后台更新数据。一切都完美的作品，除了当我做出了一定的ListView可见，填充它，然后退出应用程序，有一个断言失败的调试器中断在以下位置：QT QML/C++应用程序崩溃退出
QDeclarativeAbstractBinding::~QDeclarativeAbstractBinding()
{
Q_ASSERT(m_prevBinding == 0); //<---- THIS GUY IS THE OFFENDING LINE
Q_ASSERT(m_mePtr == 0);
}
，这里是堆栈跟踪：
> QtCored4.dll!qt_message_output(QtMsgType msgType, const char * buf) Line 2270 C++
QtCored4.dll!qt_message(QtMsgType msgType, const char * msg, char * ap) Line 2328 + 0x12 bytes C++
QtCored4.dll!qFatal(const char * msg, ...) Line 2511 + 0xf bytes C++
QtCored4.dll!qt_assert(const char * assertion, const char * file, int line) Line 2027 + 0x16 bytes C++
QtDeclaratived4.dll!QDeclarativeAbstractBinding::~QDeclarativeAbstractBinding() Line 293 + 0x1e bytes C++
QtDeclaratived4.dll!QDeclarativeCompiledBindingsPrivate::Binding::~Binding() + 0x3d bytes C++
QtDeclaratived4.dll!`eh vector destructor iterator'(void * ptr, unsigned int size, int count, void (void *)* pDtor) + 0x6b bytes C++
QtDeclaratived4.dll!QDeclarativeCompiledBindingsPrivate::Binding::`vector deleting destructor'() + 0x26 bytes C++
QtDeclaratived4.dll!QDeclarativeCompiledBindings::~QDeclarativeCompiledBindings() Line 274 + 0x33 bytes C++
QtDeclaratived4.dll!QDeclarativeCompiledBindings::`scalar deleting destructor'() + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativeRefCount::release() Line 66 + 0x20 bytes C++
QtDeclaratived4.dll!QDeclarativeCompiledBindingsPrivate::Binding::destroy() Line 328 C++
QtDeclaratived4.dll!QDeclarativeData::destroyed(QObject * object) Line 1000 C++
QtDeclaratived4.dll!QDeclarativeData::destroyed(QAbstractDeclarativeData * d, QObject * o) Line 463 C++
QtCored4.dll!QObject::~QObject() Line 860 + 0x11 bytes C++
QtDeclaratived4.dll!QDeclarativeAbstractAnimation::~QDeclarativeAbstractAnimation() Line 94 + 0x2a bytes C++
QtDeclaratived4.dll!QDeclarativePropertyAnimation::~QDeclarativePropertyAnimation() Line 1827 + 0x8 bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativePropertyAnimation>::~QDeclarativeElement<QDeclarativePropertyAnimation>() Line 90 + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativePropertyAnimation>::`scalar deleting destructor'() + 0xf bytes C++
QtCored4.dll!QObjectPrivate::deleteChildren() Line 1949 + 0x24 bytes C++
QtCored4.dll!QObject::~QObject() Line 947 C++
QtDeclaratived4.dll!QDeclarativeTransition::~QDeclarativeTransition() Line 168 + 0x9 bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativeTransition>::~QDeclarativeElement<QDeclarativeTransition>() Line 90 + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativeTransition>::`scalar deleting destructor'() + 0xf bytes C++
QtCored4.dll!QObjectPrivate::deleteChildren() Line 1949 + 0x24 bytes C++
QtCored4.dll!QObject::~QObject() Line 947 C++
QtGuid4.dll!QGraphicsObject::~QGraphicsObject() + 0x48 bytes C++
QtDeclaratived4.dll!QDeclarativeItem::~QDeclarativeItem() Line 1504 + 0x1f bytes C++
QtDeclaratived4.dll!QDeclarativeRectangle::~QDeclarativeRectangle() + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativeRectangle>::~QDeclarativeElement<QDeclarativeRectangle>() Line 90 + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativePrivate::QDeclarativeElement<QDeclarativeRectangle>::`scalar deleting destructor'() + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativeViewPrivate::~QDeclarativeViewPrivate() Line 135 + 0x67 bytes C++
QtDeclaratived4.dll!QDeclarativeViewPrivate::`scalar deleting destructor'() + 0xf bytes C++
QtCored4.dll!QScopedPointerDeleter<QObjectData>::cleanup(QObjectData * pointer) Line 62 + 0x20 bytes C++
QtCored4.dll!QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData> >::~QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData> >() Line 100 + 0x9 bytes C++
QtCored4.dll!QObject::~QObject() Line 963 + 0x12 bytes C++
QtGuid4.dll!QWidget::~QWidget() Line 1620 + 0x25 bytes C++
QtGuid4.dll!QFrame::~QFrame() Line 242 + 0x8 bytes C++
QtGuid4.dll!QAbstractScrollArea::~QAbstractScrollArea() Line 526 + 0xf bytes C++
QtGuid4.dll!QGraphicsView::~QGraphicsView() Line 1165 + 0xf bytes C++
QtDeclaratived4.dll!QDeclarativeView::~QDeclarativeView() Line 300 + 0x9 bytes C++
MyApplication.exe!QDeclarativeView::`scalar deleting destructor'() + 0x10 bytes C++
QtCored4.dll!QObjectPrivate::deleteChildren() Line 1949 + 0x24 bytes C++
QtGuid4.dll!QWidget::~QWidget() Line 1602 C++
QtGuid4.dll!QMainWindow::~QMainWindow() Line 389 + 0x22 bytes C++
MyApplication.exe!MainWindow::~MainWindow() Line 77 + 0x66 bytes C++
MyApplication.exe!MainWindow::`scalar deleting destructor'() + 0xf bytes C++
MyApplication.exe!boost::checked_delete<MainWindow>(MainWindow * x) Line 34 + 0x21 bytes C++
MyApplication.exe!boost::detail::sp_counted_impl_p<MainWindow>::dispose() Line 78 + 0xc bytes C++
MyApplication.exe!boost::detail::sp_counted_base::release() Line 103 C++
MyApplication.exe!boost::detail::shared_count::~shared_count() Line 221 C++
MyApplication.exe!boost::shared_ptr<MainWindow>::~shared_ptr<MainWindow>() + 0x12 bytes C++
MyApplication.exe!boost::shared_ptr<MainWindow>::reset() Line 387 C++
MyApplication.exe!main(int argc, char * * argv) Line 68 C++
MyApplication.exe!WinMain(HINSTANCE__ * instance, HINSTANCE__ * prevInstance, char * __formal, int cmdShow) Line 131 + 0x12 bytes C++
MyApplication.exe!__tmainCRTStartup() Line 547 + 0x2c bytes C
MyApplication.exe!WinMainCRTStartup() Line 371 C
[email protected]@12() + 0x12 bytes
[email protected]() + 0x27 bytes
[email protected]() + 0x1b bytes
编辑：
问题： 我该如何消除这个问题？我的代码可能有什么问题？没有关于如何发生的信息。
我不确定你在问什么。如果断言失败，那意味着那个时候'm_prevBinding！= 0'。既然你的问题没有背景，我真的不知道你在问什么问题。 – Mat 2011-03-12 09:33:08