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-rw-r--r--src/qml/doc/snippets/code/src_script_qjsengine.cpp20
-rw-r--r--src/qml/jsapi/qjsengine.cpp24
-rw-r--r--src/qml/jsruntime/qv4value_p.h4
-rw-r--r--src/qml/memory/qv4mm.cpp15
-rw-r--r--src/qml/qml/qqmldata_p.h10
-rw-r--r--src/qml/qml/qqmlengine.cpp24
-rw-r--r--src/qml/qml/qqmlobjectcreator.cpp3
-rw-r--r--src/qml/qml/qqmlobjectcreator_p.h2
8 files changed, 83 insertions, 19 deletions
diff --git a/src/qml/doc/snippets/code/src_script_qjsengine.cpp b/src/qml/doc/snippets/code/src_script_qjsengine.cpp
index 3799189f83..6c58fd8a18 100644
--- a/src/qml/doc/snippets/code/src_script_qjsengine.cpp
+++ b/src/qml/doc/snippets/code/src_script_qjsengine.cpp
@@ -114,3 +114,23 @@ engine.globalObject().setProperty("myObject", myScriptQObject);
qDebug() << engine.evaluate("myObject.dynamicProperty").toInt();
//! [6]
+
+
+//! [7]
+class MyObject : public QObject
+{
+ Q_OBJECT
+
+public:
+ Q_INVOKABLE MyObject() {}
+};
+//! [7]
+
+//! [8]
+QJSValue jsMetaObject = engine.newQMetaObject(&MyObject::staticMetaObject);
+engine.globalObject().setProperty("MyObject", jsMetaObject);
+//! [8]
+
+//! [9]
+engine.evaluate("var myObject = new MyObject()");
+//! [9]
diff --git a/src/qml/jsapi/qjsengine.cpp b/src/qml/jsapi/qjsengine.cpp
index d5b8b295a7..6cab8def4f 100644
--- a/src/qml/jsapi/qjsengine.cpp
+++ b/src/qml/jsapi/qjsengine.cpp
@@ -166,16 +166,30 @@ Q_DECLARE_METATYPE(QList<int>)
properties of the proxy object. No binding code is needed because it
is done dynamically using the Qt meta object system.
+ \snippet code/src_script_qjsengine.cpp 5
+
Use newQMetaObject() to wrap a QMetaObject; this gives you a
"script representation" of a QObject-based class. newQMetaObject()
returns a proxy script object; enum values of the class are available
as properties of the proxy object.
- Constructors exposed to the meta-object system ( using Q_INVOKABLE ) can be
+ Constructors exposed to the meta-object system (using Q_INVOKABLE) can be
called from the script to create a new QObject instance with
- JavaScriptOwnership.
+ JavaScriptOwnership. For example, given the following class definition:
- \snippet code/src_script_qjsengine.cpp 5
+ \snippet code/src_script_qjsengine.cpp 7
+
+ The \c staticMetaObject for the class can be exposed to JavaScript like so:
+
+ \snippet code/src_script_qjsengine.cpp 8
+
+ Instances of the class can then be created in JavaScript:
+
+ \snippet code/src_script_qjsengine.cpp 9
+
+ \note Currently only classes using the Q_OBJECT macro are supported; it is
+ not possible to expose the \c staticMetaObject of a Q_GADGET class to
+ JavaScript.
\section2 Dynamic QObject Properties
@@ -537,7 +551,7 @@ QJSValue QJSEngine::newQObject(QObject *object)
When called as a constructor, a new instance of the class will be created.
Only constructors exposed by Q_INVOKABLE will be visible from the script engine.
- \sa newQObject()
+ \sa newQObject(), {QObject Integration}
*/
QJSValue QJSEngine::newQMetaObject(const QMetaObject* metaObject) {
@@ -554,7 +568,7 @@ QJSValue QJSEngine::newQMetaObject(const QMetaObject* metaObject) {
Creates a JavaScript object that wraps the static QMetaObject associated
with class \c{T}.
- \sa newQObject()
+ \sa newQObject(), {QObject Integration}
*/
diff --git a/src/qml/jsruntime/qv4value_p.h b/src/qml/jsruntime/qv4value_p.h
index 50cecb6598..1158b82318 100644
--- a/src/qml/jsruntime/qv4value_p.h
+++ b/src/qml/jsruntime/qv4value_p.h
@@ -56,6 +56,8 @@
#include "qv4global_p.h"
#include <private/qv4heap_p.h>
+#include <private/qnumeric_p.h>
+
#if QT_POINTER_SIZE == 8
#define QV4_USE_64_BIT_VALUE_ENCODING
#endif
@@ -362,6 +364,8 @@ public:
return d;
}
QML_NEARLY_ALWAYS_INLINE void setDouble(double d) {
+ if (qt_is_nan(d))
+ d = qt_qnan();
memcpy(&_val, &d, 8);
#ifdef QV4_USE_64_BIT_VALUE_ENCODING
_val ^= NaNEncodeMask;
diff --git a/src/qml/memory/qv4mm.cpp b/src/qml/memory/qv4mm.cpp
index 27b3c756c5..d420572606 100644
--- a/src/qml/memory/qv4mm.cpp
+++ b/src/qml/memory/qv4mm.cpp
@@ -400,6 +400,9 @@ bool Chunk::sweep(ExecutionEngine *engine)
v->destroy(b);
b->_checkIsDestroyed();
}
+#ifdef V4_USE_HEAPTRACK
+ heaptrack_report_free(itemToFree);
+#endif
}
Q_V4_PROFILE_DEALLOC(engine, qPopulationCount((objectBitmap[i] | extendsBitmap[i])
- (blackBitmap[i] | e)) * Chunk::SlotSize,
@@ -448,6 +451,9 @@ void Chunk::freeAll(ExecutionEngine *engine)
b->vtable()->destroy(b);
b->_checkIsDestroyed();
}
+#ifdef V4_USE_HEAPTRACK
+ heaptrack_report_free(itemToFree);
+#endif
}
Q_V4_PROFILE_DEALLOC(engine, (qPopulationCount(objectBitmap[i]|extendsBitmap[i])
- qPopulationCount(e)) * Chunk::SlotSize, Profiling::SmallItem);
@@ -705,6 +711,9 @@ HeapItem *BlockAllocator::allocate(size_t size, bool forceAllocation) {
done:
m->setAllocatedSlots(slotsRequired);
Q_V4_PROFILE_ALLOC(engine, slotsRequired * Chunk::SlotSize, Profiling::SmallItem);
+#ifdef V4_USE_HEAPTRACK
+ heaptrack_report_alloc(m, slotsRequired * Chunk::SlotSize);
+#endif
// DEBUG << " " << hex << m->chunk() << m->chunk()->objectBitmap[0] << m->chunk()->extendsBitmap[0] << (m - m->chunk()->realBase());
return m;
}
@@ -762,6 +771,9 @@ HeapItem *HugeItemAllocator::allocate(size_t size) {
chunks.push_back(HugeChunk{c, size});
Chunk::setBit(c->objectBitmap, c->first() - c->realBase());
Q_V4_PROFILE_ALLOC(engine, size, Profiling::LargeItem);
+#ifdef V4_USE_HEAPTRACK
+ heaptrack_report_alloc(c, size);
+#endif
return c->first();
}
@@ -778,6 +790,9 @@ static void freeHugeChunk(ChunkAllocator *chunkAllocator, const HugeItemAllocato
b->_checkIsDestroyed();
}
chunkAllocator->free(c.chunk, c.size);
+#ifdef V4_USE_HEAPTRACK
+ heaptrack_report_free(c.chunk);
+#endif
}
void HugeItemAllocator::sweep(ClassDestroyStatsCallback classCountPtr)
diff --git a/src/qml/qml/qqmldata_p.h b/src/qml/qml/qqmldata_p.h
index 5794e6f0c5..17d145f939 100644
--- a/src/qml/qml/qqmldata_p.h
+++ b/src/qml/qml/qqmldata_p.h
@@ -56,6 +56,7 @@
#include <private/qqmlpropertyindex_p.h>
#include <private/qv4value_p.h>
#include <private/qv4persistent_p.h>
+#include <private/qqmlrefcount_p.h>
#include <qjsengine.h>
#include <qvector.h>
@@ -116,6 +117,7 @@ class Q_QML_PRIVATE_EXPORT QQmlData : public QAbstractDeclarativeData
{
public:
QQmlData();
+ ~QQmlData();
static inline void init() {
static bool initialized = false;
@@ -219,12 +221,15 @@ public:
quint32 jsEngineId; // id of the engine that created the jsWrapper
struct DeferredData {
+ DeferredData();
+ ~DeferredData();
unsigned int deferredIdx;
QMultiHash<int, const QV4::CompiledData::Binding *> bindings;
- QV4::CompiledData::CompilationUnit *compilationUnit;//Not always the same as the other compilation unit
+ QQmlRefPointer<QV4::CompiledData::CompilationUnit> compilationUnit;//Not always the same as the other compilation unit
QQmlContextData *context;//Could be either context or outerContext
+ Q_DISABLE_COPY(DeferredData);
};
- QV4::CompiledData::CompilationUnit *compilationUnit;
+ QQmlRefPointer<QV4::CompiledData::CompilationUnit> compilationUnit;
QVector<DeferredData *> deferredData;
void deferData(int objectIndex, QV4::CompiledData::CompilationUnit *, QQmlContextData *);
@@ -299,6 +304,7 @@ private:
const BindingBitsType *bits = (bindingBitsArraySize == InlineBindingArraySize) ? bindingBitsValue : bindingBits;
return bits[offset] & bitFlagForBit(bit);
}
+ Q_DISABLE_COPY(QQmlData);
};
bool QQmlData::wasDeleted(const QObject *object)
diff --git a/src/qml/qml/qqmlengine.cpp b/src/qml/qml/qqmlengine.cpp
index d53c94e901..8e3b0a790f 100644
--- a/src/qml/qml/qqmlengine.cpp
+++ b/src/qml/qml/qqmlengine.cpp
@@ -752,13 +752,17 @@ QQmlData::QQmlData()
hasInterceptorMetaObject(false), hasVMEMetaObject(false), parentFrozen(false),
bindingBitsArraySize(InlineBindingArraySize), notifyList(0),
bindings(0), signalHandlers(0), nextContextObject(0), prevContextObject(0),
- lineNumber(0), columnNumber(0), jsEngineId(0), compilationUnit(0),
+ lineNumber(0), columnNumber(0), jsEngineId(0),
propertyCache(0), guards(0), extendedData(0)
{
memset(bindingBitsValue, 0, sizeof(bindingBitsValue));
init();
}
+QQmlData::~QQmlData()
+{
+}
+
void QQmlData::destroyed(QAbstractDeclarativeData *d, QObject *o)
{
QQmlData *ddata = static_cast<QQmlData *>(d);
@@ -930,6 +934,14 @@ void QQmlData::flushPendingBindingImpl(QQmlPropertyIndex index)
QQmlPropertyData::DontRemoveBinding);
}
+QQmlData::DeferredData::DeferredData()
+{
+}
+
+QQmlData::DeferredData::~DeferredData()
+{
+}
+
bool QQmlEnginePrivate::baseModulesUninitialized = true;
void QQmlEnginePrivate::init()
{
@@ -1684,7 +1696,6 @@ void QQmlData::deferData(int objectIndex, QV4::CompiledData::CompilationUnit *co
QQmlData::DeferredData *deferData = new QQmlData::DeferredData;
deferData->deferredIdx = objectIndex;
deferData->compilationUnit = compilationUnit;
- deferData->compilationUnit->addref();
deferData->context = context;
const QV4::CompiledData::Object *compiledObject = compilationUnit->objectAt(objectIndex);
@@ -1706,7 +1717,6 @@ void QQmlData::releaseDeferredData()
while (it != deferredData.end()) {
DeferredData *deferData = *it;
if (deferData->bindings.isEmpty()) {
- deferData->compilationUnit->release();
delete deferData;
it = deferredData.erase(it);
} else {
@@ -1784,12 +1794,10 @@ void QQmlData::destroyed(QObject *object)
if (bindings && !bindings->ref.deref())
delete bindings;
- if (compilationUnit) {
- compilationUnit->release();
- compilationUnit = 0;
- }
+ compilationUnit = nullptr;
- releaseDeferredData();
+ qDeleteAll(deferredData);
+ deferredData.clear();
QQmlBoundSignal *signalHandler = signalHandlers;
while (signalHandler) {
diff --git a/src/qml/qml/qqmlobjectcreator.cpp b/src/qml/qml/qqmlobjectcreator.cpp
index 7caab2a5d3..9114fbb83a 100644
--- a/src/qml/qml/qqmlobjectcreator.cpp
+++ b/src/qml/qml/qqmlobjectcreator.cpp
@@ -203,10 +203,7 @@ QObject *QQmlObjectCreator::create(int subComponentIndex, QObject *parent, QQmlI
if (instance) {
QQmlData *ddata = QQmlData::get(instance);
Q_ASSERT(ddata);
- if (ddata->compilationUnit)
- ddata->compilationUnit->release();
ddata->compilationUnit = compilationUnit;
- ddata->compilationUnit->addref();
}
if (topLevelCreator)
diff --git a/src/qml/qml/qqmlobjectcreator_p.h b/src/qml/qml/qqmlobjectcreator_p.h
index f4c03af5b7..bef58b8c9a 100644
--- a/src/qml/qml/qqmlobjectcreator_p.h
+++ b/src/qml/qml/qqmlobjectcreator_p.h
@@ -137,7 +137,7 @@ private:
QQmlEngine *engine;
QV4::ExecutionEngine *v4;
- QV4::CompiledData::CompilationUnit *compilationUnit;
+ QQmlRefPointer<QV4::CompiledData::CompilationUnit> compilationUnit;
const QV4::CompiledData::Unit *qmlUnit;
QQmlGuardedContextData parentContext;
QQmlContextData *context;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 10:36:22 +0000