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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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.
#ifndef Patternist_CallSite_H
#define Patternist_CallSite_H
#include "qunlimitedcontainer_p.h"
#include "qcalltargetdescription_p.h"
#include "qxmlname.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Abstract base-class for Expression instances that are callsites
* to other components, such as templates or user functions.
*
* @author Frans Englich <frans.englich@nokia.com>
* @ingroup Patternist_expressions
* @since 4.5
*/
class CallSite : public UnlimitedContainer
{
public:
QXmlName name() const;
bool isRecursive() const;
void setIsRecursive(const bool value);
/**
* Called in the earliest stages of the compilation process. @p sign can
* be any function signature for a user declared function. If @p sign
* matches this UserFunctionCallsite, it means the UserFunction represented
* by @p sign is recursive and that this UserFunctionCallsite should take
* appropriate measures.
*
* @returns @c true if is recursive, otherwise @c false
*/
virtual bool configureRecursion(const CallTargetDescription::Ptr &sign) = 0;
/**
* @short Returns the body of the function/template/component that is
* being called.
*/
virtual Expression::Ptr body() const = 0;
virtual CallTargetDescription::Ptr callTargetDescription() const = 0;
protected:
CallSite(const QXmlName &name = QXmlName());
private:
Q_DISABLE_COPY(CallSite)
bool m_isRecursive;
const QXmlName m_name;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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