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#include <QtCore/QObject>
class MyObj;
class MyObj : public QObject
{
Q_OBJECT
public:
void foo();
int bar() { return 1; }
signals:
void mySig();
virtual void myVirtualSig();
public Q_SLOTS:
void mySlot();
};
void test()
{
auto *o = new MyObj();
o->connect(o, &MyObj::mySig, o, &MyObj::mySlot); // OK
o->connect(o, &MyObj::foo, o, &MyObj::mySlot); // Warning
o->connect(o, SIGNAL(foo()), o, SLOT(mySlot())); // OK, only PMF is checked
}
class MyObj2 : public QObject
{
Q_OBJECT
public:
void foo();
signals:
void mySig();
};
void test2()
{
auto *o2 = new MyObj2();
o2->connect(o2, &MyObj2::mySig, o2, &MyObj2::foo); // OK
QObject::connect(o2, &MyObj2::mySig, o2, &MyObj2::foo); // OK
QObject::connect(o2, &MyObj2::foo, o2, &MyObj2::foo); // OK
}
class MyDerivedObj : public MyObj
{
Q_OBJECT
public:
void myVirtualSig() override;
};
void test3()
{
auto *o = new MyDerivedObj();
QObject::connect(o, &MyDerivedObj::myVirtualSig, o, &MyObj::foo); // Warn, overriden but not a signal now
QObject::connect(o, &MyObj::myVirtualSig, o, &MyObj::foo); // OK
}
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