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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include <corelib_global.h>
namespace QmlDesigner {
namespace Internal {
class ModelRewriter;
class ModelPrivate;
}
/*!
\class QmlDesigner::ModificationGroupToken
\ingroup CoreModel
\brief TBD
*/
class CORESHARED_EXPORT ModificationGroupToken
{
friend class Internal::ModelRewriter;
friend class Internal::ModelPrivate;
public:
ModificationGroupToken(): m_depth(0), m_uniqueNumber(-1) {}
unsigned depth() const { return m_depth; }
bool isValid() const { return m_uniqueNumber != -1; }
bool operator==(const ModificationGroupToken& token) const { return m_uniqueNumber == token.m_uniqueNumber; }
bool operator!=(const ModificationGroupToken& token) const { return m_uniqueNumber != token.m_uniqueNumber; }
private:
void makeInvalid() { m_uniqueNumber = -1; }
ModificationGroupToken(unsigned depth);
private:
static long uniqueNumberCounter;
unsigned m_depth;
long m_uniqueNumber;
};
}
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