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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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