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/*
SPDX-FileCopyrightText: 2016 Volker Krause <vkrause@kde.org>
SPDX-FileCopyrightText: 2018 Christoph Cullmann <cullmann@kde.org>
SPDX-License-Identifier: MIT
*/
#ifndef KSYNTAXHIGHLIGHTING_STATE_P_H
#define KSYNTAXHIGHLIGHTING_STATE_P_H
#include <QSharedData>
#include <QVector>
#include "definitionref_p.h"
namespace KSyntaxHighlighting
{
class Context;
class StateData : public QSharedData
{
friend class State;
friend class AbstractHighlighter;
public:
StateData() = default;
static StateData *get(State &state);
bool isEmpty() const;
void clear();
int size() const;
void push(Context *context, const QStringList &captures);
/**
* Pop the number of elements given from the top of the current stack.
* Will not pop the initial element.
* @param popCount number of elements to pop
* @return false if one has tried to pop the initial context, else true
*/
bool pop(int popCount);
Context *topContext() const;
const QStringList &topCaptures() const;
private:
/**
* weak reference to the used definition to filter out invalid states
*/
DefinitionRef m_defRef;
/**
* the context stack combines the active context + valid captures
*/
QVector<QPair<Context *, QStringList>> m_contextStack;
};
}
#endif
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