Cleanup lots of V8 dependencies in QJS* classes

Implement a good part of QJSValue using V4.
Keep the QV8Engine for now (as it is used everywhere),
but add an ExecutionEngine pointer to it so other parts
can more easily be ported to V4.
Remove a lot of other stuff that's not required anymore.

Change-Id: Ibe2c9ab10f0ee977e0e3d05a42f526206d7b22b5
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 0 insertions, 177 deletions

diff --git a/src/qml/qml/v8/qscriptoriginalglobalobject_p.h b/src/qml/qml/v8/qscriptoriginalglobalobject_p.h
deleted file mode 100644
index 2ecdbdac91..0000000000
--- a/src/qml/qml/v8/qscriptoriginalglobalobject_p.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** 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 Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QSCRIPTORIGINALGLOBALOBJECT_P_H
-#define QSCRIPTORIGINALGLOBALOBJECT_P_H
-
-#include "QtCore/qglobal.h"
-#include "qjsvalue_p.h"
-
-#include <private/qv8_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class QV8Engine;
-
-/*!
-    \internal
-    This class is a workaround for missing V8 API functionality. This class keeps all important
-    properties of an original (default) global object, so we can use it even if the global object was
-    changed.
-
-    FIXME this class is a container for workarounds :-) it should be replaced by proper API calls.
-
-    The class have to be created on the QV8Engine creation time (before any change got applied to
-    global object).
-
-    \attention All methods (apart from constructor) assumes that a context and a scope are prepared correctly.
-*/
-class QScriptOriginalGlobalObject
-{
-public:
-    inline QScriptOriginalGlobalObject() {}
-    inline void init(v8::Handle<v8::Context> context);
-    inline void destroy();
-
-    inline QJSValuePrivate::PropertyFlags getPropertyFlags(v8::Handle<v8::Object> object, v8::Handle<v8::Value> property);
-    inline v8::Local<v8::Object> getOwnPropertyDescriptor(v8::Handle<v8::Object> object, v8::Handle<v8::Value> property) const;
-    inline bool strictlyEquals(v8::Handle<v8::Object> object);
-private:
-    Q_DISABLE_COPY(QScriptOriginalGlobalObject)
-
-    // Copy of constructors and prototypes used in isType functions.
-    v8::Persistent<v8::Function> m_ownPropertyDescriptor;
-    v8::Persistent<v8::Object> m_globalObject;
-};
-
-void QScriptOriginalGlobalObject::init(v8::Handle<v8::Context> context)
-{
-    // Please notice that engine is not fully initialized at this point.
-
-    v8::Context::Scope contextScope(context);
-
-    v8::HandleScope scope;
-
-    m_globalObject = v8::Persistent<v8::Object>::New(context->Global());
-
-    v8::Local<v8::Object> objectConstructor = m_globalObject->Get(v8::String::New("Object"))->ToObject();
-    Q_ASSERT(objectConstructor->IsObject());
-    {   // Initialize m_ownPropertyDescriptor.
-        v8::Local<v8::Value> ownPropertyDescriptor = objectConstructor->Get(v8::String::New("getOwnPropertyDescriptor"));
-        Q_ASSERT(!ownPropertyDescriptor.IsEmpty());
-        m_ownPropertyDescriptor = v8::Persistent<v8::Function>::New(v8::Local<v8::Function>::Cast(ownPropertyDescriptor));
-    }
-}
-
-/*!
-    \internal
-    QScriptOriginalGlobalObject lives as long as QV8Engine that keeps it. In ~QSEP
-    the v8 context is removed, so we need to remove our handlers before. to break this dependency
-    destroy method should be called before or insight QSEP destructor.
-*/
-inline void QScriptOriginalGlobalObject::destroy()
-{
-    m_ownPropertyDescriptor.Dispose();
-    m_globalObject.Dispose();
-    // After this line this instance is unusable.
-}
-
-inline QJSValuePrivate::PropertyFlags QScriptOriginalGlobalObject::getPropertyFlags(v8::Handle<v8::Object> object, v8::Handle<v8::Value> property)
-{
-    Q_ASSERT(object->IsObject());
-    Q_ASSERT(!property.IsEmpty());
-    v8::Local<v8::Object> descriptor = getOwnPropertyDescriptor(object, property);
-    if (descriptor.IsEmpty()) {
-//        // Property isn't owned by this object.
-//        if (!(mode & QScriptValue::ResolvePrototype))
-//            return 0;
-        v8::Local<v8::Value> prototype = object->GetPrototype();
-        if (prototype->IsNull())
-            return 0;
-        return getPropertyFlags(v8::Local<v8::Object>::Cast(prototype), property);
-    }
-    v8::Local<v8::String> writableName = v8::String::New("writable");
-    v8::Local<v8::String> configurableName = v8::String::New("configurable");
-    v8::Local<v8::String> enumerableName = v8::String::New("enumerable");
-//    v8::Local<v8::String> getName = v8::String::New("get");
-//    v8::Local<v8::String> setName = v8::String::New("set");
-
-    unsigned flags = 0;
-
-    if (!descriptor->Get(configurableName)->BooleanValue())
-        flags |= QJSValuePrivate::Undeletable;
-    if (!descriptor->Get(enumerableName)->BooleanValue())
-        flags |= QJSValuePrivate::SkipInEnumeration;
-
-    //"writable" is only a property of the descriptor if it is not an accessor
-    if (descriptor->Has(writableName)) {
-        if (!descriptor->Get(writableName)->BooleanValue())
-            flags |= QJSValuePrivate::ReadOnly;
-    } else {
-//        if (descriptor->Get(getName)->IsObject())
-//            flags |= QScriptValue::PropertyGetter;
-//        if (descriptor->Get(setName)->IsObject())
-//            flags |= QScriptValue::PropertySetter;
-    }
-
-    return QJSValuePrivate::PropertyFlag(flags);
-}
-
-inline v8::Local<v8::Object> QScriptOriginalGlobalObject::getOwnPropertyDescriptor(v8::Handle<v8::Object> object, v8::Handle<v8::Value> property) const
-{
-    Q_ASSERT(object->IsObject());
-    Q_ASSERT(!property.IsEmpty());
-    // FIXME do we need try catch here?
-    v8::Handle<v8::Value> argv[] = {object, property};
-    v8::Local<v8::Value> descriptor = m_ownPropertyDescriptor->Call(m_globalObject, /* argc */ 2, argv);
-    if (descriptor.IsEmpty() || !descriptor->IsObject())
-        return v8::Local<v8::Object>();
-    return v8::Local<v8::Object>::Cast(descriptor);
-}
-
-inline bool QScriptOriginalGlobalObject::strictlyEquals(v8::Handle<v8::Object> object)
-{
-    return m_globalObject->GetPrototype()->StrictEquals(object);
-}
-
-QT_END_NAMESPACE
-
-#endif