cpphighlightingsupportinternal.cpp 3.43 KB
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** 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://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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**
** GNU Lesser General Public License Usage
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** Alternatively, 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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****************************************************************************/
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#include "cpphighlightingsupportinternal.h"
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#include "cppchecksymbols.h"
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#include "cpptoolsreuse.h"

#include <texteditor/itexteditor.h>
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#include <cplusplus/SimpleLexer.h>
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using namespace CPlusPlus;
using namespace CppTools;
using namespace CppTools::Internal;

CppHighlightingSupportInternal::CppHighlightingSupportInternal(TextEditor::ITextEditor *editor)
    : CppHighlightingSupport(editor)
{
}

CppHighlightingSupportInternal::~CppHighlightingSupportInternal()
{
}

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QFuture<TextEditor::HighlightingResult> CppHighlightingSupportInternal::highlightingFuture(
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        const Document::Ptr &doc,
        const Snapshot &snapshot) const
{
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    typedef TextEditor::HighlightingResult Result;
    QList<Result> macroUses;
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    // Get macro definitions
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    foreach (const CPlusPlus::Macro& macro, doc->definedMacros()) {
        int line, column;
        editor()->convertPosition(macro.offset(), &line, &column);
        ++column; //Highlighting starts at (column-1) --> compensate here
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        Result use(line, column, macro.name().size(), MacroUse);
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        macroUses.append(use);
    }

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    // Get macro uses
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    foreach (const Document::MacroUse &macro, doc->macroUses()) {
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        const QString name = QString::fromUtf8(macro.macro().name());

        //Filter out QtKeywords
        if (isQtKeyword(QStringRef(&name)))
            continue;

        //Filter out C++ keywords
        SimpleLexer tokenize;
        tokenize.setQtMocRunEnabled(false);
        tokenize.setObjCEnabled(false);
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        tokenize.setCxx0xEnabled(true);
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        const QList<Token> tokens = tokenize(name);
        if (tokens.length() && (tokens.at(0).isKeyword() || tokens.at(0).isObjCAtKeyword()))
            continue;

        int line, column;
        editor()->convertPosition(macro.begin(), &line, &column);
        ++column; //Highlighting starts at (column-1) --> compensate here
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        Result use(line, column, name.size(), MacroUse);
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        macroUses.append(use);
    }

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    LookupContext context(doc, snapshot);
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    return CheckSymbols::go(doc, context, macroUses);
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}