diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/qml/qml/qqmlcontext.cpp | 13 | ||||
-rw-r--r-- | src/qml/qml/qqmlcontext_p.h | 5 | ||||
-rw-r--r-- | src/qml/types/qqmldelegatemodel.cpp | 2 |
3 files changed, 14 insertions, 6 deletions
diff --git a/src/qml/qml/qqmlcontext.cpp b/src/qml/qml/qqmlcontext.cpp index 5dd3278b4c..3dcfa92416 100644 --- a/src/qml/qml/qqmlcontext.cpp +++ b/src/qml/qml/qqmlcontext.cpp @@ -536,7 +536,7 @@ QQmlContextData::QQmlContextData() QQmlContextData::QQmlContextData(QQmlContext *ctxt) : engine(nullptr), isInternal(false), isJSContext(false), isPragmaLibraryContext(false), unresolvedNames(false), hasEmittedDestruction(false), isRootObjectInCreation(false), - publicContext(ctxt), incubator(nullptr), componentObjectIndex(-1), + stronglyReferencedByParent(false), publicContext(ctxt), incubator(nullptr), componentObjectIndex(-1), contextObject(nullptr), nextChild(nullptr), prevChild(nullptr), expressions(nullptr), contextObjects(nullptr), idValues(nullptr), idValueCount(0), componentAttached(nullptr) @@ -577,7 +577,10 @@ void QQmlContextData::invalidate() while (childContexts) { Q_ASSERT(childContexts != this); - childContexts->invalidate(); + if (childContexts->stronglyReferencedByParent && !--childContexts->refCount) + childContexts->destroy(); + else + childContexts->invalidate(); } if (prevChild) { @@ -672,12 +675,16 @@ void QQmlContextData::destroy() delete this; } -void QQmlContextData::setParent(QQmlContextData *p) +void QQmlContextData::setParent(QQmlContextData *p, bool stronglyReferencedByParent) { if (p == parent) return; if (p) { + Q_ASSERT(!parent); parent = p; + this->stronglyReferencedByParent = stronglyReferencedByParent; + if (stronglyReferencedByParent) + ++refCount; // balanced in QQmlContextData::invalidate() engine = p->engine; nextChild = p->childContexts; if (nextChild) nextChild->prevChild = &nextChild; diff --git a/src/qml/qml/qqmlcontext_p.h b/src/qml/qml/qqmlcontext_p.h index 5dfee48848..290b7fc7ee 100644 --- a/src/qml/qml/qqmlcontext_p.h +++ b/src/qml/qml/qqmlcontext_p.h @@ -126,7 +126,7 @@ public: QQmlContextData *parent = nullptr; QQmlEngine *engine; - void setParent(QQmlContextData *); + void setParent(QQmlContextData *, bool stronglyReferencedByParent = false); void refreshExpressions(); void addObject(QObject *); @@ -144,7 +144,8 @@ public: quint32 unresolvedNames:1; // True if expressions in this context failed to resolve a toplevel name quint32 hasEmittedDestruction:1; quint32 isRootObjectInCreation:1; - quint32 dummy:26; + quint32 stronglyReferencedByParent:1; + quint32 dummy:25; QQmlContext *publicContext; // The incubator that is constructing this context if any diff --git a/src/qml/types/qqmldelegatemodel.cpp b/src/qml/types/qqmldelegatemodel.cpp index 26c20d043f..eb02e8045a 100644 --- a/src/qml/types/qqmldelegatemodel.cpp +++ b/src/qml/types/qqmldelegatemodel.cpp @@ -989,7 +989,7 @@ QObject *QQmlDelegateModelPrivate::object(Compositor::Group group, int index, QQ if (QQmlAdaptorModelProxyInterface *proxy = qobject_cast<QQmlAdaptorModelProxyInterface *>(cacheItem)) { ctxt = new QQmlContextData; - ctxt->setParent(cacheItem->contextData); + ctxt->setParent(cacheItem->contextData, /*stronglyReferencedByParent*/true); ctxt->contextObject = proxy->proxiedObject(); } } |