src/tools/clangbackend/ipcsource/codecompletionsextractor.h


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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** 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 Digia.  For licensing terms and
** conditions see http://www.qt.io/licensing.  For further information
** use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#ifndef CLANGBACKEND_CODECOMPLETIONSEXTRACTOR_H
#define CLANGBACKEND_CODECOMPLETIONSEXTRACTOR_H

#include <codecompletion.h>

#include <clang-c/Index.h>

#include <QVector>

namespace ClangBackEnd {

class CodeCompletionsExtractor
{
public:
    CodeCompletionsExtractor(CXCodeCompleteResults *cxCodeCompleteResults);

    CodeCompletionsExtractor(CodeCompletionsExtractor&) = delete;
    CodeCompletionsExtractor &operator=(CodeCompletionsExtractor&) = delete;

    CodeCompletionsExtractor(CodeCompletionsExtractor&&) = delete;
    CodeCompletionsExtractor &operator=(CodeCompletionsExtractor&&) = delete;

    bool next();
    bool peek(const Utf8String &name);

    CodeCompletions extractAll();

    const CodeCompletion &currentCodeCompletion() const;

private:
    void extractCompletionKind();
    void extractText();
    void extractMethodCompletionKind();
    void extractMacroCompletionKind();
    void extractPriority();
    void extractAvailability();
    void extractHasParameters();
    void extractCompletionChunks();

    void adaptPriority();
    void decreasePriorityForNonAvailableCompletions();
    void decreasePriorityForDestructors();
    void decreasePriorityForSignals();
    void decreasePriorityForQObjectInternals();
    void decreasePriorityForOperators();

    bool hasText(const Utf8String &text, CXCompletionString cxCompletionString) const;

private:
    CodeCompletion currentCodeCompletion_;
    CXCompletionResult currentCxCodeCompleteResult;
    CXCodeCompleteResults *cxCodeCompleteResults;
    uint cxCodeCompleteResultIndex = -1;
};

#ifdef CLANGBACKEND_TESTS
void PrintTo(const CodeCompletionsExtractor &extractor, ::std::ostream* os);
#endif
} // namespace ClangBackEnd

#endif // CLANGBACKEND_CODECOMPLETIONSEXTRACTOR_H