/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the qt3to4 porting application of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** 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 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, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef RPPEXPRESSIONBUILDER_H

#define RPPEXPRESSIONBUILDER_H

#include "tokens.h"

#include "tokenengine.h"

#include "smallobject.h"

#include "rpp.h"

#include <QByteArray>

QT_BEGIN_NAMESPACE

namespace Rpp {

class ExpressionBuilder

{

public:

    ExpressionBuilder(const TokenEngine::TokenList &tokenList, const QVector<Type> &typeList, TypedPool<Item> *memoryPool);

    Rpp::Expression *parse();

private:

    inline bool hasNext() const { return (i < m_tokenList.count()); }

    Type next();

    bool test(int);

    bool moreTokens(int delta);

    inline void prev() {--i;}

    Type lookup(int k = 1);

    inline Type token() { return typeAt(i-1);}

    inline QByteArray lexem() { return m_tokenList.text(i-1);}

    inline Type typeAt(int t) { return m_typeList.at(m_tokenList.containerIndex(t));}

    Expression *conditional_expression();

    Expression *logical_OR_expression();

    Expression *logical_AND_expression();

    Expression *inclusive_OR_expression();

    Expression *exclusive_OR_expression();

    Expression *AND_expression();

    Expression *equality_expression();

    Expression *relational_expression();

    Expression *shift_expression();

    Expression *additive_expression();

    Expression *multiplicative_expression();

    Expression *unary_expression();

    Expression *primary_expression();

    bool unary_expression_lookup();

    bool primary_expression_lookup();

    UnaryExpression *createUnaryExpression(int op, Expression *expression);

    BinaryExpression *createBinaryExpression(int op, Expression *leftExpresson, Expression *rightExpression);

    ConditionalExpression *createConditionalExpression(Expression *condition, Expression *leftExpression, Expression *rightExpression);

    MacroReference *createMacroReference(MacroReference::Type type, TokenEngine::TokenList token);

    IntLiteral *createIntLiteral(const int arg);

    TokenEngine::TokenList createTokenList(int tokenIndex) const;

    int i;

    TokenEngine::TokenList m_tokenList;

    QVector<Type> m_typeList;

    TypedPool<Item> *m_memoryPool;

};

}

QT_END_NAMESPACE

#endif