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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLVALUETYPEWRAPPER_P_H
#define QQMLVALUETYPEWRAPPER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qglobal.h>
#include <private/qtqmlglobal_p.h>
#include <private/qv4value_p.h>
#include <private/qv4object_p.h>
#include <private/qqmlpropertycache_p.h>
QT_BEGIN_NAMESPACE
class QQmlValueType;
namespace QV4 {
namespace Heap {
struct QQmlValueTypeWrapper : Object {
void init() { Object::init(); }
void destroy();
void setValueType(QQmlValueType *valueType)
{
Q_ASSERT(valueType != nullptr);
m_valueType = valueType;
}
QQmlValueType *valueType() const
{
Q_ASSERT(m_valueType != nullptr);
return m_valueType;
}
void setGadgetPtr(void *gadgetPtr) const
{
m_gadgetPtr = gadgetPtr;
}
void *gadgetPtr() const
{
return m_gadgetPtr;
}
void setMetaObject(const QMetaObject *metaObject)
{
m_metaObject = metaObject;
}
const QMetaObject *metaObject() const
{
return m_metaObject;
}
void setData(const void *data) const;
void setValue(const QVariant &value) const;
QVariant toVariant() const;
private:
mutable void *m_gadgetPtr;
QQmlValueType *m_valueType;
const QMetaObject *m_metaObject;
};
struct QQmlValueTypeReference : QQmlValueTypeWrapper
{
void init() {
QQmlValueTypeWrapper::init();
object.init();
}
void destroy() {
object.destroy();
QQmlValueTypeWrapper::destroy();
}
void writeBack() {
const QMetaProperty writebackProperty = object->metaObject()->property(property);
if (!writebackProperty.isWritable())
return;
int flags = 0;
int status = -1;
if (writebackProperty.metaType() == QMetaType::fromType<QVariant>()) {
QVariant variantReferenceValue = toVariant();
void *a[] = { &variantReferenceValue, nullptr, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, property, a);
} else {
void *a[] = { gadgetPtr(), nullptr, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, property, a);
}
}
QV4QPointer<QObject> object;
int property;
};
}
struct Q_QML_EXPORT QQmlValueTypeWrapper : Object
{
V4_OBJECT2(QQmlValueTypeWrapper, Object)
V4_PROTOTYPE(valueTypeWrapperPrototype)
V4_NEEDS_DESTROY
public:
static ReturnedValue create(ExecutionEngine *engine, QObject *, int, const QMetaObject *metaObject, QMetaType type);
static ReturnedValue create(ExecutionEngine *engine, const QVariant &, const QMetaObject *metaObject, QMetaType type);
static ReturnedValue create(ExecutionEngine *engine, const void *, const QMetaObject *metaObject, QMetaType type);
QVariant toVariant() const;
bool toGadget(void *data) const;
bool isEqual(const QVariant& value) const;
int typeId() const;
QMetaType type() const;
bool write(QObject *target, int propertyIndex) const;
QQmlPropertyData dataForPropertyKey(PropertyKey id) const;
static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty);
static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
static bool virtualIsEqualTo(Managed *m, Managed *other);
static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p);
static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target);
static ReturnedValue method_toString(const FunctionObject *b, const Value *thisObject, const Value *argv, int argc);
static ReturnedValue virtualResolveLookupGetter(const Object *object, ExecutionEngine *engine, Lookup *lookup);
static bool virtualResolveLookupSetter(Object *object, ExecutionEngine *engine, Lookup *lookup, const Value &value);
static ReturnedValue lookupGetter(Lookup *lookup, ExecutionEngine *engine, const Value &object);
static bool lookupSetter(QV4::Lookup *l, QV4::ExecutionEngine *engine,
QV4::Value &object, const QV4::Value &value);
static void initProto(ExecutionEngine *v4);
};
struct QQmlValueTypeReference : public QQmlValueTypeWrapper
{
V4_OBJECT2(QQmlValueTypeReference, QQmlValueTypeWrapper)
V4_NEEDS_DESTROY
bool readReferenceValue() const;
};
}
QT_END_NAMESPACE
#endif // QV8VALUETYPEWRAPPER_P_H
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