diff options
Diffstat (limited to 'tests/auto/corelib/kernel/qobject/tst_qobject.cpp')
| -rw-r--r-- | tests/auto/corelib/kernel/qobject/tst_qobject.cpp | 316 |
1 files changed, 235 insertions, 81 deletions
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp index 31268c5cf3..a805bfb747 100644 --- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp +++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp @@ -32,7 +32,6 @@ #include <qcoreapplication.h> #include <qpointer.h> #include <qtimer.h> -#include <qregexp.h> #include <qregularexpression.h> #include <qmetaobject.h> #include <qvariant.h> @@ -82,7 +81,9 @@ private slots: void senderTest(); void declareInterface(); void qpointerResetBeforeDestroyedSignal(); +#ifndef QT_NO_USERDATA void testUserData(); +#endif void childDeletesItsSibling(); void dynamicProperties(); void floatProperty(); @@ -154,6 +155,8 @@ private slots: void mutableFunctor(); void checkArgumentsForNarrowing(); void nullReceiver(); + void functorReferencesConnection(); + void disconnectDisconnects(); }; struct QObjectCreatedOnShutdown @@ -535,91 +538,91 @@ void tst_QObject::findChildren() QObject *op = 0; - op = qFindChild<QObject*>(&o, "o1"); + op = o.findChild<QObject*>("o1"); QCOMPARE(op, &o1); - op = qFindChild<QObject*>(&o, "o2"); + op = o.findChild<QObject*>("o2"); QCOMPARE(op, &o2); - op = qFindChild<QObject*>(&o, "o11"); + op = o.findChild<QObject*>("o11"); QCOMPARE(op, &o11); - op = qFindChild<QObject*>(&o, "o12"); + op = o.findChild<QObject*>("o12"); QCOMPARE(op, &o12); - op = qFindChild<QObject*>(&o, "o111"); + op = o.findChild<QObject*>("o111"); QCOMPARE(op, &o111); - op = qFindChild<QObject*>(&o, "t1"); + op = o.findChild<QObject*>("t1"); QCOMPARE(op, static_cast<QObject *>(&t1)); - op = qFindChild<QObject*>(&o, "t121"); + op = o.findChild<QObject*>("t121"); QCOMPARE(op, static_cast<QObject *>(&t121)); - op = qFindChild<QTimer*>(&o, "t1"); + op = o.findChild<QTimer*>("t1"); QCOMPARE(op, static_cast<QObject *>(&t1)); - op = qFindChild<QTimer*>(&o, "t121"); + op = o.findChild<QTimer*>("t121"); QCOMPARE(op, static_cast<QObject *>(&t121)); - op = qFindChild<QTimer*>(&o, "o12"); + op = o.findChild<QTimer*>("o12"); QCOMPARE(op, static_cast<QObject *>(0)); - op = qFindChild<QObject*>(&o, "o"); + op = o.findChild<QObject*>("o"); QCOMPARE(op, static_cast<QObject *>(0)); - op = qFindChild<QObject*>(&o, "harry"); + op = o.findChild<QObject*>("harry"); QCOMPARE(op, static_cast<QObject *>(0)); - op = qFindChild<QObject*>(&o, "o1"); + op = o.findChild<QObject*>("o1"); QCOMPARE(op, &o1); QList<QObject*> l; QList<QTimer*> tl; - l = qFindChildren<QObject*>(&o, "o1"); + l = o.findChildren<QObject*>("o1"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o1); - l = qFindChildren<QObject*>(&o, "o2"); + l = o.findChildren<QObject*>("o2"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o2); - l = qFindChildren<QObject*>(&o, "o11"); + l = o.findChildren<QObject*>("o11"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o11); - l = qFindChildren<QObject*>(&o, "o12"); + l = o.findChildren<QObject*>("o12"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o12); - l = qFindChildren<QObject*>(&o, "o111"); + l = o.findChildren<QObject*>("o111"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o111); - l = qFindChildren<QObject*>(&o, "t1"); + l = o.findChildren<QObject*>("t1"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), static_cast<QObject *>(&t1)); - l = qFindChildren<QObject*>(&o, "t121"); + l = o.findChildren<QObject*>("t121"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), static_cast<QObject *>(&t121)); - tl = qFindChildren<QTimer*>(&o, "t1"); + tl = o.findChildren<QTimer*>("t1"); QCOMPARE(tl.size(), 1); QCOMPARE(tl.at(0), &t1); - tl = qFindChildren<QTimer*>(&o, "t121"); + tl = o.findChildren<QTimer*>("t121"); QCOMPARE(tl.size(), 1); QCOMPARE(tl.at(0), &t121); - l = qFindChildren<QObject*>(&o, "o"); + l = o.findChildren<QObject*>("o"); QCOMPARE(l.size(), 0); - l = qFindChildren<QObject*>(&o, "harry"); + l = o.findChildren<QObject*>("harry"); QCOMPARE(l.size(), 0); - tl = qFindChildren<QTimer*>(&o, "o12"); + tl = o.findChildren<QTimer*>("o12"); QCOMPARE(tl.size(), 0); - l = qFindChildren<QObject*>(&o, "o1"); + l = o.findChildren<QObject*>("o1"); QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o1); - l = qFindChildren<QObject*>(&o, QRegExp("o.*")); + l = o.findChildren<QObject*>(QRegularExpression("^o.*$")); QCOMPARE(l.size(), 5); QVERIFY(l.contains(&o1)); QVERIFY(l.contains(&o2)); QVERIFY(l.contains(&o11)); QVERIFY(l.contains(&o12)); QVERIFY(l.contains(&o111)); - l = qFindChildren<QObject*>(&o, QRegExp("t.*")); + l = o.findChildren<QObject*>(QRegularExpression("t.*")); QCOMPARE(l.size(), 2); QVERIFY(l.contains(&t1)); QVERIFY(l.contains(&t121)); - tl = qFindChildren<QTimer*>(&o, QRegExp(".*")); + tl = o.findChildren<QTimer*>(QRegularExpression("^.*$")); QCOMPARE(tl.size(), 3); QVERIFY(tl.contains(&t1)); QVERIFY(tl.contains(&t121)); - tl = qFindChildren<QTimer*>(&o, QRegExp("o.*")); + tl = o.findChildren<QTimer*>(QRegularExpression("^o.*$")); QCOMPARE(tl.size(), 0); - l = qFindChildren<QObject*>(&o, QRegExp("harry")); + l = o.findChildren<QObject*>(QRegularExpression("^harry$")); QCOMPARE(l.size(), 0); l = o.findChildren<QObject*>(QRegularExpression("o.*")); @@ -643,18 +646,18 @@ void tst_QObject::findChildren() QCOMPARE(l.size(), 0); // empty and null string check - op = qFindChild<QObject*>(&o); + op = o.findChild<QObject*>(); QCOMPARE(op, &o1); - op = qFindChild<QObject*>(&o, ""); + op = o.findChild<QObject*>(""); QCOMPARE(op, &unnamed); - op = qFindChild<QObject*>(&o, "unnamed"); + op = o.findChild<QObject*>("unnamed"); QCOMPARE(op, static_cast<QObject *>(0)); - l = qFindChildren<QObject*>(&o); + l = o.findChildren<QObject*>(); QCOMPARE(l.size(), 9); - l = qFindChildren<QObject*>(&o, ""); + l = o.findChildren<QObject*>(""); QCOMPARE(l.size(), 2); - l = qFindChildren<QObject*>(&o, "unnamed"); + l = o.findChildren<QObject*>("unnamed"); QCOMPARE(l.size(), 0); tl = o.findChildren<QTimer *>("t1"); @@ -722,19 +725,19 @@ void tst_QObject::findChildren() QCOMPARE(l.size(), 1); QCOMPARE(l.at(0), &o1); - l = o.findChildren<QObject*>(QRegExp("o.*"), Qt::FindDirectChildrenOnly); + l = o.findChildren<QObject*>(QRegularExpression("^o.*$"), Qt::FindDirectChildrenOnly); QCOMPARE(l.size(), 2); QVERIFY(l.contains(&o1)); QVERIFY(l.contains(&o2)); - l = o.findChildren<QObject*>(QRegExp("t.*"), Qt::FindDirectChildrenOnly); + l = o.findChildren<QObject*>(QRegularExpression("^t.*$"), Qt::FindDirectChildrenOnly); QCOMPARE(l.size(), 1); QVERIFY(l.contains(&t1)); - tl = o.findChildren<QTimer*>(QRegExp(".*"), Qt::FindDirectChildrenOnly); + tl = o.findChildren<QTimer*>(QRegularExpression("^.*$"), Qt::FindDirectChildrenOnly); QCOMPARE(tl.size(), 2); QVERIFY(tl.contains(&t1)); - tl = o.findChildren<QTimer*>(QRegExp("o.*"), Qt::FindDirectChildrenOnly); + tl = o.findChildren<QTimer*>(QRegularExpression("^o.*$"), Qt::FindDirectChildrenOnly); QCOMPARE(tl.size(), 0); - l = o.findChildren<QObject*>(QRegExp("harry"), Qt::FindDirectChildrenOnly); + l = o.findChildren<QObject*>(QRegularExpression("^harry$"), Qt::FindDirectChildrenOnly); QCOMPARE(l.size(), 0); // empty and null string check @@ -1033,18 +1036,16 @@ public Q_SLOTS: void tst_QObject::connectNotify_connectSlotsByName() { ConnectByNameNotifyReceiverObject testObject; - QList<ConnectByNameNotifySenderObject *> senders = - qFindChildren<ConnectByNameNotifySenderObject *>(&testObject); - for (int i = 0; i < senders.size(); ++i) { - ConnectByNameNotifySenderObject *o = senders.at(i); + const QList<ConnectByNameNotifySenderObject *> senders = + testObject.findChildren<ConnectByNameNotifySenderObject *>(); + for (ConnectByNameNotifySenderObject *o : senders) { QVERIFY(o->connectedSignals.isEmpty()); QVERIFY(o->disconnectedSignals.isEmpty()); } QMetaObject::connectSlotsByName(&testObject); - for (int i = 0; i < senders.size(); ++i) { - ConnectByNameNotifySenderObject *o = senders.at(i); + for (ConnectByNameNotifySenderObject *o : senders) { QCOMPARE(o->connectedSignals.size(), 1); QCOMPARE(o->connectedSignals.at(0), QMetaMethod::fromSignal(&ConnectByNameNotifySenderObject::signal1)); QVERIFY(o->disconnectedSignals.isEmpty()); @@ -1400,6 +1401,7 @@ struct CustomType CustomType(const CustomType &other): i1(other.i1), i2(other.i2), i3(other.i3) { ++instanceCount; playWithObjects(); } ~CustomType() { --instanceCount; playWithObjects(); } + CustomType &operator=(const CustomType &) = default; int i1, i2, i3; int value() { return i1 + i2 + i3; } @@ -1629,7 +1631,7 @@ void tst_QObject::thread() QObject object; // thread affinity for objects with no parent should be the // current thread - QVERIFY(object.thread() != 0); + QVERIFY(object.thread() != nullptr); QCOMPARE(object.thread(), currentThread); // children inherit their parent's thread QObject child(&object); @@ -1641,7 +1643,7 @@ void tst_QObject::thread() { TestThread thr; - QVERIFY(thr.thread() != 0); + QVERIFY(thr.thread() != nullptr); QCOMPARE(thr.thread(), currentThread); thr.object = &object; @@ -1800,8 +1802,8 @@ void tst_QObject::moveToThread() QMetaObject::invokeMethod(object, "deleteLater", Qt::QueuedConnection); thread.wait(); - QVERIFY(opointer == 0); - QVERIFY(cpointer == 0); + QVERIFY(opointer == nullptr); + QVERIFY(cpointer == nullptr); } { @@ -2339,6 +2341,7 @@ void tst_QObject::declareInterface() } +#ifndef QT_NO_USERDATA class CustomData : public QObjectUserData { public: @@ -2377,10 +2380,11 @@ void tst_QObject::testUserData() for (int i=0; i<USER_DATA_COUNT; ++i) { int id = user_data_ids[i]; CustomData *data = static_cast<CustomData *>(my_test_object.userData(id)); - QVERIFY(data != 0); + QVERIFY(data != nullptr); QCOMPARE(data->id, id); } } +#endif // QT_NO_USERDATA class DestroyedListener : public QObject { @@ -3409,12 +3413,11 @@ void tst_QObject::disconnectSelfInSlotAndDeleteAfterEmit() void tst_QObject::dumpObjectInfo() { QObject a, b; - QObject::connect(&a, SIGNAL(destroyed(QObject*)), &b, SLOT(deleteLater())); - a.disconnect(&b); + QObject::connect(&a, &QObject::destroyed, &b, &QObject::deleteLater); QTest::ignoreMessage(QtDebugMsg, "OBJECT QObject::unnamed"); QTest::ignoreMessage(QtDebugMsg, " SIGNALS OUT"); QTest::ignoreMessage(QtDebugMsg, " signal: destroyed(QObject*)"); - QTest::ignoreMessage(QtDebugMsg, " <Disconnected receiver>"); + QTest::ignoreMessage(QtDebugMsg, " <functor or function pointer>"); QTest::ignoreMessage(QtDebugMsg, " SIGNALS IN"); QTest::ignoreMessage(QtDebugMsg, " <None>"); a.dumpObjectInfo(); // should not crash @@ -3626,7 +3629,7 @@ class OverloadObject : public QObject void sig(int i, int j = 12); void sig(QObject *o, QObject *p, QObject *q = 0, QObject *r = 0) const; void other(int a = 0); - void sig(QObject *o, OverloadObject *p = 0, QObject *q = 0, QObject *r = 0); + void sig(QObject *o, OverloadObject *p = 0, QObject *q = 0, QObject *r = nullptr); void sig(double r = 0.5); public slots: void slo(int i, int j = 43) @@ -4793,13 +4796,13 @@ class LotsOfSignalsAndSlots: public QObject public slots: void slot_v() {} - void slot_v_noexcept() Q_DECL_NOTHROW {} + void slot_v_noexcept() noexcept {} void slot_vi(int) {} - void slot_vi_noexcept() Q_DECL_NOTHROW {} + void slot_vi_noexcept() noexcept {} void slot_vii(int, int) {} void slot_viii(int, int, int) {} int slot_i() { return 0; } - int slot_i_noexcept() Q_DECL_NOTHROW { return 0; } + int slot_i_noexcept() noexcept { return 0; } int slot_ii(int) { return 0; } int slot_iii(int, int) { return 0; } int slot_iiii(int, int, int) { return 0; } @@ -4813,18 +4816,18 @@ class LotsOfSignalsAndSlots: public QObject void slot_vPFvvE(fptr) {} void const_slot_v() const {}; - void const_slot_v_noexcept() const Q_DECL_NOTHROW {} + void const_slot_v_noexcept() const noexcept {} void const_slot_vi(int) const {}; - void const_slot_vi_noexcept(int) const Q_DECL_NOTHROW {} + void const_slot_vi_noexcept(int) const noexcept {} static void static_slot_v() {} - static void static_slot_v_noexcept() Q_DECL_NOTHROW {} + static void static_slot_v_noexcept() noexcept {} static void static_slot_vi(int) {} - static void static_slot_vi_noexcept(int) Q_DECL_NOTHROW {} + static void static_slot_vi_noexcept(int) noexcept {} static void static_slot_vii(int, int) {} static void static_slot_viii(int, int, int) {} static int static_slot_i() { return 0; } - static int static_slot_i_noexcept() Q_DECL_NOTHROW { return 0; } + static int static_slot_i_noexcept() noexcept { return 0; } static int static_slot_ii(int) { return 0; } static int static_slot_iii(int, int) { return 0; } static int static_slot_iiii(int, int, int) { return 0; } @@ -4987,11 +4990,11 @@ void tst_QObject::connectCxx0xTypeMatching() } -void receiverFunction_noexcept() Q_DECL_NOTHROW {} -struct Functor_noexcept { void operator()() Q_DECL_NOTHROW {} }; +void receiverFunction_noexcept() noexcept {} +struct Functor_noexcept { void operator()() noexcept {} }; void tst_QObject::connectCxx17Noexcept() { - // this is about connecting signals to slots with the Q_DECL_NOTHROW qualifier + // this is about connecting signals to slots with the noexcept qualifier // as semantics changed due to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html typedef LotsOfSignalsAndSlots Foo; Foo obj; @@ -5981,7 +5984,7 @@ void ConnectToPrivateSlot::test(SenderObject* obj1) { obj1->signal1(); QCOMPARE(d->receivedCount, 1); QCOMPARE(d->receivedValue, QVariant()); - obj1->signal7(666, QLatin1Literal("_")); + obj1->signal7(666, QLatin1String("_")); QCOMPARE(d->receivedCount, 2); QCOMPARE(d->receivedValue, QVariant(666)); QVERIFY(QObjectPrivate::connect(obj1, &SenderObject::signal2, d, &ConnectToPrivateSlotPrivate::thisIsAPrivateSlot, Qt::UniqueConnection)); @@ -6028,7 +6031,6 @@ void tst_QObject::connectFunctorArgDifference() QStringListModel model; connect(&model, &QStringListModel::rowsInserted, SlotFunctor()); -#if defined(Q_COMPILER_LAMBDA) connect(&timer, &QTimer::timeout, [=](){}); connect(&timer, &QTimer::objectNameChanged, [=](const QString &){}); connect(qApp, &QCoreApplication::aboutToQuit, [=](){}); @@ -6036,7 +6038,6 @@ void tst_QObject::connectFunctorArgDifference() connect(&timer, &QTimer::objectNameChanged, [=](){}); connect(&model, &QStringListModel::rowsInserted, [=](){}); connect(&model, &QStringListModel::rowsInserted, [=](const QModelIndex &){}); -#endif QVERIFY(true); } @@ -6074,7 +6075,6 @@ void tst_QObject::connectFunctorQueued() e.exec(); QCOMPARE(status, 2); -#if defined(Q_COMPILER_LAMBDA) status = 1; connect(&obj, &SenderObject::signal1, this, [&status] { status = 2; }, Qt::QueuedConnection); @@ -6082,7 +6082,6 @@ void tst_QObject::connectFunctorQueued() QCOMPARE(status, 1); e.exec(); QCOMPARE(status, 2); -#endif } void tst_QObject::connectFunctorWithContext() @@ -6116,7 +6115,6 @@ void tst_QObject::connectFunctorWithContext() e.exec(); QCOMPARE(status, 2); -#if defined(Q_COMPILER_LAMBDA) status = 1; connect(&obj, &SenderObject::signal1, this, [this, &status, &obj] { status = 2; QCOMPARE(sender(), &obj); }, Qt::QueuedConnection); @@ -6124,7 +6122,6 @@ void tst_QObject::connectFunctorWithContext() QCOMPARE(status, 1); e.exec(); QCOMPARE(status, 2); -#endif // Free context->deleteLater(); @@ -6434,7 +6431,7 @@ void connectFunctorOverload_impl(Signal signal, int expOverload, QList<QVariant> void tst_QObject::connectFunctorOverloads() { -#if defined (Q_COMPILER_DECLTYPE) && defined (Q_COMPILER_VARIADIC_TEMPLATES) +#if defined (Q_COMPILER_VARIADIC_TEMPLATES) connectFunctorOverload_impl<ComplexFunctor>(&FunctorArgDifferenceObject::signal_ii, 1, (QList<QVariant>() << 1 << 2)); connectFunctorOverload_impl<ComplexFunctor>(&FunctorArgDifferenceObject::signal_iiS, 1, @@ -6608,7 +6605,6 @@ void tst_QObject::disconnectDoesNotLeakFunctor() } QCOMPARE(countedStructObjectsCount, 0); { -#if defined(Q_COMPILER_LAMBDA) CountedStruct s; QCOMPARE(countedStructObjectsCount, 1); QTimer timer; @@ -6618,7 +6614,6 @@ void tst_QObject::disconnectDoesNotLeakFunctor() QCOMPARE(countedStructObjectsCount, 2); QVERIFY(QObject::disconnect(c)); QCOMPARE(countedStructObjectsCount, 1); -#endif // Q_COMPILER_LAMBDA } QCOMPARE(countedStructObjectsCount, 0); } @@ -6666,7 +6661,6 @@ void tst_QObject::contextDoesNotLeakFunctor() } QCOMPARE(countedStructObjectsCount, 0); { -#if defined(Q_COMPILER_LAMBDA) CountedStruct s; QEventLoop e; ContextObject *context = new ContextObject; @@ -6679,7 +6673,6 @@ void tst_QObject::contextDoesNotLeakFunctor() context->deleteLater(); e.exec(); QCOMPARE(countedStructObjectsCount, 1); -#endif // Q_COMPILER_LAMBDA } QCOMPARE(countedStructObjectsCount, 0); } @@ -7487,6 +7480,167 @@ void tst_QObject::nullReceiver() QVERIFY(!connect(&o, SIGNAL(destroyed()), nullObj, SLOT(deleteLater()))); } +void tst_QObject::functorReferencesConnection() +{ + countedStructObjectsCount = 0; + QMetaObject::Connection globalCon; + { + GetSenderObject obj; + CountedStruct counted(&obj); + QCOMPARE(countedStructObjectsCount, 1); + auto c = QSharedPointer<QMetaObject::Connection>::create(); + int slotCalled = 0; + *c = connect(&obj, &GetSenderObject::aSignal, &obj, [&slotCalled, c, counted] { + QObject::disconnect(*c); + slotCalled++; + }); + globalCon = *c; // keep a handle to the connection somewhere; + QVERIFY(globalCon); + QCOMPARE(countedStructObjectsCount, 2); + obj.triggerSignal(); + QCOMPARE(slotCalled, 1); + QCOMPARE(countedStructObjectsCount, 1); + QVERIFY(!globalCon); + obj.triggerSignal(); + QCOMPARE(slotCalled, 1); + QCOMPARE(countedStructObjectsCount, 1); + } + QCOMPARE(countedStructObjectsCount, 0); + + { + GetSenderObject obj; + CountedStruct counted(&obj); + QCOMPARE(countedStructObjectsCount, 1); + auto *rec = new QObject; + int slotCalled = 0; + globalCon = connect(&obj, &GetSenderObject::aSignal, rec, [&slotCalled, rec, counted] { + delete rec; + slotCalled++; + }); + QCOMPARE(countedStructObjectsCount, 2); + obj.triggerSignal(); + QCOMPARE(slotCalled, 1); + QCOMPARE(countedStructObjectsCount, 1); + QVERIFY(!globalCon); + obj.triggerSignal(); + QCOMPARE(slotCalled, 1); + QCOMPARE(countedStructObjectsCount, 1); + } + QCOMPARE(countedStructObjectsCount, 0); + { + int slotCalled = 0; + QEventLoop eventLoop; + { + // Sender will be destroyed when the labda goes out of scope lambda, so it will exit the event loop + auto sender = QSharedPointer<GetSenderObject>::create(); + connect(sender.data(), &QObject::destroyed, &eventLoop, &QEventLoop::quit, Qt::QueuedConnection); + globalCon = connect(sender.data(), &GetSenderObject::aSignal, this, [&slotCalled, sender, &globalCon, this] { + ++slotCalled; + // This signal will be connected, but should never be called as the sender will be destroyed before + auto c2 = connect(sender.data(), &GetSenderObject::aSignal, [] { QFAIL("Should not be called"); }); + QVERIFY(c2); + QVERIFY(QObject::disconnect(sender.data(), nullptr, this, nullptr)); + QVERIFY(!globalCon); // this connection has been disconnected + QVERIFY(c2); // sender should not have been deleted yet, only after the emission is done + }); + QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection); + QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection); + QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection); + } + eventLoop.exec(); + QCOMPARE(slotCalled, 1); + } + + { + GetSenderObject obj; + CountedStruct counted(&obj); + QCOMPARE(countedStructObjectsCount, 1); + auto c1 = QSharedPointer<QMetaObject::Connection>::create(); + auto c2 = QSharedPointer<QMetaObject::Connection>::create(); + int slot1Called = 0; + int slot3Called = 0; + *c1 = connect(&obj, &GetSenderObject::aSignal, &obj, [&slot1Called, &slot3Called, &obj, c1, c2, counted] { + auto c3 = connect(&obj, &GetSenderObject::aSignal, [counted, &slot3Called] { + slot3Called++; + }); + // top-level + the one in the 3 others lambdas + QCOMPARE(countedStructObjectsCount, 4); + QObject::disconnect(*c2); + slot1Called++; + }); + connect(&obj, &GetSenderObject::aSignal, [] {}); // just a dummy signal to fill the connection list + *c2 = connect(&obj, &GetSenderObject::aSignal, [counted, c2] { QFAIL("should not be called"); }); + QVERIFY(c1 && c2); + QCOMPARE(countedStructObjectsCount, 3); // top-level + c1 + c2 + obj.triggerSignal(); + QCOMPARE(slot1Called, 1); + QCOMPARE(slot3Called, 0); + QCOMPARE(countedStructObjectsCount, 3); // top-level + c1 + c3 + QObject::disconnect(*c1); + QCOMPARE(countedStructObjectsCount, 2); // top-level + c3 + obj.triggerSignal(); + QCOMPARE(slot1Called, 1); + QCOMPARE(slot3Called, 1); + } + { + struct DestroyEmit { + Q_DISABLE_COPY(DestroyEmit); + explicit DestroyEmit(SenderObject *obj) : obj(obj) {} + SenderObject *obj; + ~DestroyEmit() { + obj->emitSignal1(); + } + }; + SenderObject obj; + int slot1Called = 0; + int slot2Called = 0; + int slot3Called = 0; + auto c1 = QSharedPointer<QMetaObject::Connection>::create(); + auto de = QSharedPointer<DestroyEmit>::create(&obj); + *c1 = connect(&obj, &SenderObject::signal1, [&slot1Called, &slot3Called, de, c1, &obj] { + connect(&obj, &SenderObject::signal1, [&slot3Called] { slot3Called++; }); + slot1Called++; + QObject::disconnect(*c1); + }); + de.clear(); + connect(&obj, &SenderObject::signal1, [&slot2Called] { slot2Called++; }); + obj.emitSignal1(); + QCOMPARE(slot1Called, 1); + QCOMPARE(slot2Called, 2); // because also called from ~DestroyEmit + QCOMPARE(slot3Called, 1); + } +} + +void tst_QObject::disconnectDisconnects() +{ + // Test what happens if the destructor of an functor slot also disconnects more slot; + + SenderObject s1; + QScopedPointer<QObject> receiver(new QObject); + + auto s2 = QSharedPointer<SenderObject>::create(); + QPointer<QObject> s2_tracker = s2.data(); + int count = 0; + connect(&s1, &SenderObject::signal1, [&count] { count++; }); // α + connect(&s1, &SenderObject::signal1, receiver.data(), [s2] { QFAIL("!!"); }); // β + connect(s2.data(), &SenderObject::signal1, receiver.data(), [] { QFAIL("!!"); }); + connect(&s1, &SenderObject::signal2, receiver.data(), [] { QFAIL("!!"); }); + connect(s2.data(), &SenderObject::signal2, receiver.data(), [] { QFAIL("!!"); }); + connect(&s1, &SenderObject::signal1, [&count] { count++; }); // γ + connect(&s1, &SenderObject::signal2, [&count] { count++; }); // δ + s2.clear(); + + QVERIFY(s2_tracker); + receiver + .reset(); // this will delete the receiver which must also delete s2 as β is disconnected + QVERIFY(!s2_tracker); + // test that the data structures are still in order + s1.emitSignal1(); + QCOMPARE(count, 2); // α + γ + s1.emitSignal2(); + QCOMPARE(count, 3); // + δ +} + // Test for QtPrivate::HasQ_OBJECT_Macro Q_STATIC_ASSERT(QtPrivate::HasQ_OBJECT_Macro<tst_QObject>::Value); Q_STATIC_ASSERT(!QtPrivate::HasQ_OBJECT_Macro<SiblingDeleter>::Value); |