Evaluate all shared bindings together using a shared context

The vast majority of bindings are capable of being shared (that is, don't
introduce closures themselves) and consequently this improves the
performance of almost every app.

1 files changed, 94 insertions, 0 deletions

diff --git a/src/declarative/qml/v8/qv8bindings_p.h b/src/declarative/qml/v8/qv8bindings_p.h
new file mode 100644
index 0000000000..e99e3c834d
--- /dev/null
+++ b/src/declarative/qml/v8/qv8bindings_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QV8BINDINGS_P_H
+#define QV8BINDINGS_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 "private/qdeclarativeexpression_p.h"
+#include "private/qdeclarativebinding_p.h"
+#include "private/qdeclarativev4instruction_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeCompiledData;
+
+class QV8BindingsPrivate;
+class QV8Bindings : public QObject, 
+                    public QDeclarativeAbstractExpression, 
+                    public QDeclarativeRefCount
+{
+public:
+    QV8Bindings(const QString &program, int line,
+                QDeclarativeCompiledData *compiled,
+                QDeclarativeContextData *context);
+    virtual ~QV8Bindings();
+
+    QDeclarativeAbstractBinding *configBinding(int index, QObject *target, QObject *scope, 
+                                               const QDeclarativeProperty &prop, int line);
+
+protected:
+    int qt_metacall(QMetaObject::Call, int, void **);
+
+private:
+    Q_DISABLE_COPY(QV8Bindings)
+    Q_DECLARE_PRIVATE(QV8Bindings)
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QV8BINDINGS_P_H
+
+