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#include <QtCore/QObject>
class MyObject_hasEventFilter : public QObject
{
protected:
bool eventFilter(QObject *, QEvent *) override;
};
class MyObject_doesntHaveEventFilter : public QObject
{
};
class Obj : public QObject
{
public:
Obj(MyObject_hasEventFilter* other)
{
other->installEventFilter(this); // OK
other->installEventFilter(other); // OK
installEventFilter(other); // OK
installEventFilter(this); // Warning
this->installEventFilter(other); // OK
}
void test2(MyObject_doesntHaveEventFilter *other)
{
other->installEventFilter(this); // OK
other->installEventFilter(other); // OK
installEventFilter(this); // Warning
this->installEventFilter(other); // Warning
installEventFilter(other); // Warning
}
};
class DerivedDerived : public Obj {};
class DerivedDerived2 : public MyObject_hasEventFilter {};
class TestBiggerHierarchy : public QObject
{
void test(DerivedDerived *d1, DerivedDerived2 *d2)
{
installEventFilter(d1); // Warning
installEventFilter(d2); // OK
}
};
class NoThisInvolved : public QObject
{
void installEventFilterLocal()
{
QObject o;
o.installEventFilter(this); // OK, no crash
}
};
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