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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtScript 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 QSCRIPTFUNCTION_P_H
#define QSCRIPTFUNCTION_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 "qscriptobjectdata_p.h"
#ifndef QT_NO_SCRIPT
#include "qscriptglobals_p.h"
#include "qscriptnodepool_p.h"
#include <QtCore/QList>
#ifndef QT_NO_QOBJECT
# include <QtCore/QPointer>
# include <QtCore/QMetaMethod>
#endif
QT_BEGIN_NAMESPACE
class QScriptContext;
class QScriptContextPrivate;
class QScriptNameIdImpl;
class QScriptFunction: public QScriptObjectData
{
public:
enum Type {
Unknown,
Script,
C,
C2,
C3,
Qt,
QtProperty
};
QScriptFunction(int len = 0)
: length(len)
{ }
virtual ~QScriptFunction();
virtual void execute(QScriptContextPrivate *context) = 0;
virtual QString toString(QScriptContextPrivate *context) const;
virtual Type type() const { return Unknown; }
// name of the file the function is defined in
virtual QString fileName() const;
virtual QString functionName() const;
virtual int startLineNumber() const;
virtual int endLineNumber() const;
virtual void mark(QScriptEnginePrivate *engine, int generation);
public: // ### private
int length;
QList<QScriptNameIdImpl*> formals;
};
namespace QScript {
// public API function
class CFunction: public QScriptFunction
{
public:
CFunction(QScriptFunctionSignature funPtr, int length)
: QScriptFunction(length), m_funPtr(funPtr)
{ }
virtual ~CFunction() { }
virtual void execute(QScriptContextPrivate *context);
virtual Type type() const { return QScriptFunction::C; }
virtual QString functionName() const;
private:
QScriptFunctionSignature m_funPtr;
};
// internal API function
class C2Function: public QScriptFunction
{
public:
C2Function(QScriptInternalFunctionSignature funPtr, int length,
QScriptClassInfo *classInfo, const QString &name)
: QScriptFunction(length), m_funPtr(funPtr),
m_classInfo(classInfo), m_name(name)
{ }
virtual ~C2Function() {}
virtual void execute(QScriptContextPrivate *context);
virtual Type type() const { return QScriptFunction::C2; }
virtual QString functionName() const;
private:
QScriptInternalFunctionSignature m_funPtr;
QScriptClassInfo *m_classInfo;
QString m_name;
};
class C3Function: public QScriptFunction
{
public:
C3Function(QScriptFunctionWithArgSignature funPtr, void *arg, int length)
: QScriptFunction(length), m_funPtr(funPtr), m_arg(arg)
{ }
virtual ~C3Function() { }
virtual void execute(QScriptContextPrivate *context);
virtual Type type() const { return QScriptFunction::C3; }
private:
QScriptFunctionWithArgSignature m_funPtr;
void *m_arg;
};
namespace AST {
class FunctionExpression;
}
// implemented in qscriptcontext_p.cpp
class ScriptFunction: public QScriptFunction
{
public:
ScriptFunction(AST::FunctionExpression *definition, NodePool *astPool):
m_definition(definition), m_astPool(astPool), m_compiledCode(0) {}
virtual ~ScriptFunction() {}
virtual void execute(QScriptContextPrivate *context);
virtual QString toString(QScriptContextPrivate *context) const;
virtual Type type() const
{ return QScriptFunction::Script; }
virtual QString fileName() const;
virtual QString functionName() const;
virtual int startLineNumber() const;
virtual int endLineNumber() const;
private:
AST::FunctionExpression *m_definition;
QExplicitlySharedDataPointer<NodePool> m_astPool;
Code *m_compiledCode;
};
} // namespace QScript
QT_END_NAMESPACE
#endif // QT_NO_SCRIPT
#endif // QSCRIPTFUNCTION_P_H
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