diff options
| -rw-r--r-- | src/qml/qml/qqmlmetatype.cpp | 16 | ||||
| -rw-r--r-- | tests/auto/qml/qqmlmetatype/tst_qqmlmetatype.cpp | 39 |
2 files changed, 51 insertions, 4 deletions
diff --git a/src/qml/qml/qqmlmetatype.cpp b/src/qml/qml/qqmlmetatype.cpp index 11806a89a0..708859be00 100644 --- a/src/qml/qml/qqmlmetatype.cpp +++ b/src/qml/qml/qqmlmetatype.cpp @@ -497,9 +497,9 @@ QQmlType::QQmlType(QQmlMetaTypeData *data, const QString &elementName, const QQm d->extraData.cd->attachedPropertiesFunc = type.attachedPropertiesFunction; d->extraData.cd->attachedPropertiesType = type.attachedPropertiesMetaObject; if (d->extraData.cd->attachedPropertiesType) { - QHash<const QMetaObject *, int>::Iterator iter = d->attachedPropertyIds.find(d->baseMetaObject); - if (iter == d->attachedPropertyIds.end()) - iter = d->attachedPropertyIds.insert(d->baseMetaObject, d->index); + auto iter = QQmlTypePrivate::attachedPropertyIds.find(d->baseMetaObject); + if (iter == QQmlTypePrivate::attachedPropertyIds.end()) + iter = QQmlTypePrivate::attachedPropertyIds.insert(d->baseMetaObject, d->index); d->extraData.cd->attachedPropertiesId = *iter; } else { d->extraData.cd->attachedPropertiesId = -1; @@ -569,8 +569,16 @@ QQmlType::QQmlType(QQmlTypePrivate *priv) QQmlType::~QQmlType() { - if (d && !d->refCount.deref()) + if (d && !d->refCount.deref()) { + // If attached properties were successfully registered, deregister them. + // (They may not have been registered if some other type used the same baseMetaObject) + if (d->regType == CppType && d->extraData.cd->attachedPropertiesType) { + auto it = QQmlTypePrivate::attachedPropertyIds.find(d->baseMetaObject); + if (it != QQmlTypePrivate::attachedPropertyIds.end() && *it == d->index) + QQmlTypePrivate::attachedPropertyIds.erase(it); + } delete d; + } } QHashedString QQmlType::module() const diff --git a/tests/auto/qml/qqmlmetatype/tst_qqmlmetatype.cpp b/tests/auto/qml/qqmlmetatype/tst_qqmlmetatype.cpp index e83dac48fb..7139a1c952 100644 --- a/tests/auto/qml/qqmlmetatype/tst_qqmlmetatype.cpp +++ b/tests/auto/qml/qqmlmetatype/tst_qqmlmetatype.cpp @@ -35,6 +35,7 @@ #include <private/qqmlmetatype_p.h> #include <private/qqmlpropertyvalueinterceptor_p.h> +#include <private/qqmlengine_p.h> #include <private/qhashedstring_p.h> #include "../../shared/util.h" @@ -64,6 +65,7 @@ private slots: void unregisterCustomSingletonType(); void normalizeUrls(); + void unregisterAttachedProperties(); }; class TestType : public QObject @@ -533,6 +535,43 @@ void tst_qqmlmetatype::normalizeUrls() QVERIFY(!QQmlMetaType::qmlType(url, /*includeNonFileImports=*/true).isValid()); } +void tst_qqmlmetatype::unregisterAttachedProperties() +{ + qmlClearTypeRegistrations(); + + const QUrl dummy("qrc:///doesnotexist.qml"); + { + QQmlEngine e; + QQmlComponent c(&e); + c.setData("import QtQuick 2.2\n Item { }", dummy); + + const QQmlType attachedType = QQmlMetaType::qmlType("QtQuick/KeyNavigation", 2, 2); + QCOMPARE(attachedType.attachedPropertiesId(QQmlEnginePrivate::get(&e)), + attachedType.index()); + + QVERIFY(c.create()); + } + + qmlClearTypeRegistrations(); + { + QQmlEngine e; + QQmlComponent c(&e); + + // The extra import shuffles the type IDs around, so that we + // get a different ID for the attached properties. If the attached + // properties aren't properly cleared, this will crash. + c.setData("import QtQml.StateMachine 1.0 \n" + "import QtQuick 2.2 \n" + "Item { KeyNavigation.up: null }", dummy); + + const QQmlType attachedType = QQmlMetaType::qmlType("QtQuick/KeyNavigation", 2, 2); + QCOMPARE(attachedType.attachedPropertiesId(QQmlEnginePrivate::get(&e)), + attachedType.index()); + + QVERIFY(c.create()); + } +} + QTEST_MAIN(tst_qqmlmetatype) #include "tst_qqmlmetatype.moc" |