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** Copyright (C) 2016 The Qt Company Ltd.
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#pragma once

#include "tokeninfo.h"

#include <iterator>
#include <vector>

#include <clang-c/Index.h>

namespace ClangBackEnd {

using uint = unsigned int;

class DiagnosticSet;
class Diagnostic;

class TokenInfosIterator : public std::iterator<std::forward_iterator_tag, TokenInfo, uint>
{
public:
    TokenInfosIterator(std::vector<CXCursor>::const_iterator cxCursorIterator,
                              CXToken *cxToken,
                              CXTranslationUnit cxTranslationUnit,
                              std::vector<CXSourceRange> &currentOutputArgumentRanges)
        : cxCursorIterator(cxCursorIterator),
          cxToken(cxToken),
          cxTranslationUnit(cxTranslationUnit),
          currentOutputArgumentRanges(currentOutputArgumentRanges)
    {}

    TokenInfosIterator& operator++()
    {
        ++cxCursorIterator;
        ++cxToken;

        return *this;
    }

    TokenInfosIterator operator++(int)
    {
        return TokenInfosIterator(cxCursorIterator++,
                                         cxToken++,
                                         cxTranslationUnit,
                                         currentOutputArgumentRanges);
    }

    bool operator==(TokenInfosIterator other) const
    {
        return cxCursorIterator == other.cxCursorIterator;
    }

    bool operator!=(TokenInfosIterator other) const
    {
        return cxCursorIterator != other.cxCursorIterator;
    }

    TokenInfo operator*()
    {
        return TokenInfo(*cxCursorIterator,
                                cxToken,
                                cxTranslationUnit,
                                currentOutputArgumentRanges);
    }

private:
    std::vector<CXCursor>::const_iterator cxCursorIterator;
    CXToken *cxToken;
    CXTranslationUnit cxTranslationUnit;
    std::vector<CXSourceRange> &currentOutputArgumentRanges;
};

} // namespace ClangBackEnd
