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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQMLV8ENGINE_P_H
-#define QQMLV8ENGINE_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 <QtCore/qvariant.h>
-#include <QtCore/qset.h>
-#include <QtCore/qmutex.h>
-#include <QtCore/qstack.h>
-#include <QtCore/qstringlist.h>
-#include <QtCore/QElapsedTimer>
-#include <QtCore/QThreadStorage>
-
-#include <QtQml/qjsengine.h>
-#include "private/qintrusivelist_p.h"
-
-
-#include <private/qv4value_p.h>
-#include <private/qv4identifier_p.h>
-#include <private/qv4context_p.h>
-#include <private/qv4stackframe_p.h>
-#include <private/qqmldelayedcallqueue_p.h>
-
-QT_BEGIN_NAMESPACE
-
-namespace QV4 {
- struct ArrayObject;
- struct ExecutionEngine;
- struct QObjectMethod;
-}
-
-#define V4_DEFINE_EXTENSION(dataclass, datafunction) \
- static inline dataclass *datafunction(QV4::ExecutionEngine *engine) \
- { \
- static int extensionId = -1; \
- if (extensionId == -1) { \
- QV8Engine::registrationMutex()->lock(); \
- if (extensionId == -1) \
- extensionId = QV8Engine::registerExtension(); \
- QV8Engine::registrationMutex()->unlock(); \
- } \
- dataclass *rv = (dataclass *)engine->v8Engine->extensionData(extensionId); \
- if (!rv) { \
- rv = new dataclass(engine); \
- engine->v8Engine->setExtensionData(extensionId, rv); \
- } \
- return rv; \
- } \
-
-// Used to allow a QObject method take and return raw V4 handles without having to expose
-// 48 in the public API.
-// Use like this:
-// class MyClass : public QObject {
-// Q_OBJECT
-// ...
-// Q_INVOKABLE void myMethod(QQmlV4Function*);
-// };
-// The QQmlV8Function - and consequently the arguments and return value - only remains
-// valid during the call. If the return value isn't set within myMethod(), the will return
-// undefined.
-
-class QQmlV4Function
-{
-public:
- int length() const { return callData->argc(); }
- QV4::ReturnedValue operator[](int idx) const { return (idx < callData->argc() ? callData->args[idx].asReturnedValue() : QV4::Encode::undefined()); }
- void setReturnValue(QV4::ReturnedValue rv) { *retVal = rv; }
- QV4::ExecutionEngine *v4engine() const { return e; }
-private:
- friend struct QV4::QObjectMethod;
- QQmlV4Function();
- QQmlV4Function(const QQmlV4Function &);
- QQmlV4Function &operator=(const QQmlV4Function &);
-
- QQmlV4Function(QV4::CallData *callData, QV4::Value *retVal, QV4::ExecutionEngine *e)
- : callData(callData), retVal(retVal), e(e)
- {
- callData->thisObject = QV4::Encode::undefined();
- }
-
- QV4::CallData *callData;
- QV4::Value *retVal;
- QV4::ExecutionEngine *e;
-};
-
-class QObject;
-class QQmlEngine;
-class QNetworkAccessManager;
-class QQmlContextData;
-
-class Q_QML_PRIVATE_EXPORT QV8Engine
-{
- friend class QJSEngine;
-public:
-// static QJSEngine* get(QV8Engine* d) { Q_ASSERT(d); return d->q; }
- static QV4::ExecutionEngine *getV4(QV8Engine *d) { return d->m_v4Engine; }
-
- QV8Engine(QV4::ExecutionEngine *v4);
- virtual ~QV8Engine();
-
- // This enum should be in sync with QQmlEngine::ObjectOwnership
- enum ObjectOwnership { CppOwnership, JavaScriptOwnership };
-
- struct Deletable {
- virtual ~Deletable() {}
- };
-
- void initQmlGlobalObject();
- void setEngine(QQmlEngine *engine);
- QQmlEngine *engine() { return m_engine; }
- QQmlDelayedCallQueue *delayedCallQueue() { return &m_delayedCallQueue; }
-
-#if QT_CONFIG(qml_xml_http_request)
- void *xmlHttpRequestData() const { return m_xmlHttpRequestData; }
-#endif
-
- void freezeObject(const QV4::Value &value);
-
-#if QT_CONFIG(qml_network)
- // Return the network access manager for this engine. By default this returns the network
- // access manager of the QQmlEngine. It is overridden in the case of a threaded v8
- // instance (like in WorkerScript).
- virtual QNetworkAccessManager *networkAccessManager();
-#endif
-
- // Return the list of illegal id names (the names of the properties on the global object)
- const QSet<QString> &illegalNames() const;
-
- static QMutex *registrationMutex();
- static int registerExtension();
-
- inline Deletable *extensionData(int) const;
- void setExtensionData(int, Deletable *);
-
-public:
- // used for console.time(), console.timeEnd()
- void startTimer(const QString &timerName);
- qint64 stopTimer(const QString &timerName, bool *wasRunning);
-
- // used for console.count()
- int consoleCountHelper(const QString &file, quint16 line, quint16 column);
-
-protected:
- QQmlEngine *m_engine;
- QQmlDelayedCallQueue m_delayedCallQueue;
-
- QV4::ExecutionEngine *m_v4Engine;
-
-#if QT_CONFIG(qml_xml_http_request)
- void *m_xmlHttpRequestData;
-#endif
-
- QVector<Deletable *> m_extensionData;
-
- QSet<QString> m_illegalNames;
-
- QElapsedTimer m_time;
- QHash<QString, qint64> m_startedTimers;
-
- QHash<QString, quint32> m_consoleCount;
-
- void initializeGlobal();
-
-private:
- Q_DISABLE_COPY(QV8Engine)
-};
-
-inline QV8Engine::Deletable *QV8Engine::extensionData(int index) const
-{
- if (index < m_extensionData.count())
- return m_extensionData[index];
- else
- return nullptr;
-}
-
-
-QT_END_NAMESPACE
-
-#endif // QQMLV8ENGINE_P_H
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