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#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