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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
****************************************************************************/
//
// 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 <private/qunlimitedcontainer_p.h>
#include <private/qcalltargetdescription_p.h>
#include <QXmlName>
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
#endif
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