FastPreprocessor.cpp 2.6 KB
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/**************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
**
** GNU Lesser General Public License Usage
**
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** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
**************************************************************************/

#include "FastPreprocessor.h"
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#include <Literals.h>
#include <TranslationUnit.h>
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#include <QDebug>
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using namespace CPlusPlus;

FastPreprocessor::FastPreprocessor(const Snapshot &snapshot)
    : _snapshot(snapshot),
      _preproc(this, &_env)
{ }

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QByteArray FastPreprocessor::run(QString fileName, const QString &source)
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{
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    _preproc.setExpandMacros(false);
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    _preproc.setKeepComments(true);
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    if (Document::Ptr doc = _snapshot.document(fileName)) {
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        _merged.insert(fileName);

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        mergeEnvironment(QLatin1String("<configuration>"));
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        foreach (const Document::Include &i, doc->includes())
            mergeEnvironment(i.fileName());
    }

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    const QByteArray preprocessed = _preproc.run(fileName, source);
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//    qDebug("FastPreprocessor::run for %s produced [[%s]]", fileName.toUtf8().constData(), preprocessed.constData());
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    return preprocessed;
}

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void FastPreprocessor::sourceNeeded(unsigned, QString &fileName, IncludeType)
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{ mergeEnvironment(fileName); }

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void FastPreprocessor::mergeEnvironment(const QString &fileName)
{
    if (! _merged.contains(fileName)) {
        _merged.insert(fileName);

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        if (Document::Ptr doc = _snapshot.document(fileName)) {
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            foreach (const Document::Include &i, doc->includes())
                mergeEnvironment(i.fileName());

            _env.addMacros(doc->definedMacros());
        }
    }
}