/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the qt3to4 porting application of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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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+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** 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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**+
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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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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "rpptreewalker.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace Rpp {+
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+
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void RppTreeWalker::evaluateItem(const Item *item)+
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{+
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    if(!item)+
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        return;+
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    if (Source *source = item->toSource())+
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        evaluateSource(source);+
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    else if (Directive *directive = item->toDirective())+
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        evaluateDirective(directive);+
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    else if (IfSection *ifSection = item->toIfSection())+
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        evaluateIfSection(ifSection);+
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    else if (Text *text = item->toText())+
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        evaluateText(text);+
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}+
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+
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void RppTreeWalker::evaluateItemComposite(const ItemComposite *itemComposite)+
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{+
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    if (!itemComposite)+
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        return;+
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    for (int i = 0; i < itemComposite->count(); ++i) {+
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        evaluateItem(itemComposite->item(i));+
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    }+
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}+
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+
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void RppTreeWalker::evaluateSource(const Source *source)+
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{+
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    evaluateItemComposite(source->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateDirective(const Directive *directive)+
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{+
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    if (!directive)+
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        return;+
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    if (EmptyDirective *dir = directive->toEmptyDirective())+
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        evaluateEmptyDirective(dir);+
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    else if (ErrorDirective *dir = directive->toErrorDirective())+
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        evaluateErrorDirective(dir);+
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    else if (PragmaDirective *dir = directive->toPragmaDirective())+
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        evaluatePragmaDirective(dir);+
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    else if (IncludeDirective *dir = directive->toIncludeDirective())+
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        evaluateIncludeDirective(dir);+
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    else if (DefineDirective *dir = directive->toDefineDirective())+
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        evaluateDefineDirective(dir);+
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    else if (UndefDirective *dir = directive->toUndefDirective())+
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        evaluateUndefDirective(dir);+
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    else if (LineDirective *dir = directive->toLineDirective())+
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        evaluateLineDirective(dir);+
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    else if (NonDirective *dir = directive->toNonDirective())+
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        evaluateNonDirective(dir);+
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    else if (NonDirective *dir = directive->toNonDirective())+
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        evaluateNonDirective(dir);+
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    else if (ConditionalDirective *dir = directive->toConditionalDirective())+
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        evaluateConditionalDirective(dir);+
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}+
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+
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/*+
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    This function evaluates all the branches of an IfSection. You should +
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    override it if you want to only evaluate the "correct" branch.+
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*/+
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void RppTreeWalker::evaluateIfSection(const IfSection *ifSection)+
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{+
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    if (!ifSection)+
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        return;+
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    evaluateItemComposite(ifSection->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateConditionalDirective(const ConditionalDirective *conditionalDirective)+
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{+
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    if (!conditionalDirective)+
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        return;+
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    if (IfdefDirective *dir = conditionalDirective->toIfdefDirective())+
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         evaluateIfdefDirective(dir);+
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    else if (IfndefDirective *dir = conditionalDirective->toIfndefDirective())+
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         evaluateIfndefDirective(dir);+
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    else if (IfDirective *dir = conditionalDirective->toIfDirective())+
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         evaluateIfDirective(dir);+
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    else if (ElifDirective *dir = conditionalDirective->toElifDirective())+
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         evaluateElifDirective(dir);+
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    else if (ElseDirective *dir = conditionalDirective->toElseDirective())+
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         evaluateElseDirective(dir);+
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}+
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+
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void RppTreeWalker::evaluateIfdefDirective(const IfdefDirective *directive)+
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{+
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   if (!directive) +
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       return;+
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   evaluateItemComposite(directive->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateIfndefDirective(const IfndefDirective *directive)+
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{+
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   if (!directive) +
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       return;+
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   evaluateItemComposite(directive->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateIfDirective(const IfDirective *directive)+
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{+
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   if (!directive) +
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       return;+
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   evaluateItemComposite(directive->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateElifDirective(const ElifDirective *directive)+
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{+
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   if (!directive) +
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       return;+
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   evaluateItemComposite(directive->toItemComposite());+
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}+
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+
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void RppTreeWalker::evaluateElseDirective(const ElseDirective *directive)+
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{+
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   if (!directive) +
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       return;+
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   evaluateItemComposite(directive->toItemComposite());+
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}+
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+
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}+
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+
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QT_END_NAMESPACE+
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