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    41 

    42 #ifndef RPPEXPRESSIONBUILDER_H

    43 #define RPPEXPRESSIONBUILDER_H

    44 

    45 #include "tokens.h"

    46 #include "tokenengine.h"

    47 #include "smallobject.h"

    48 #include "rpp.h"

    49 #include <QByteArray>

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 namespace Rpp {

    54 

    55 class ExpressionBuilder

    56 {

    57 public:

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

    59     Rpp::Expression *parse();

    60 private:

    61 

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

    63     Type next();

    64     bool test(int);

    65     bool moreTokens(int delta);

    66     inline void prev() {--i;}

    67     Type lookup(int k = 1);

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

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

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

    71 

    72     Expression *conditional_expression();

    73     Expression *logical_OR_expression();

    74     Expression *logical_AND_expression();

    75     Expression *inclusive_OR_expression();

    76     Expression *exclusive_OR_expression();

    77     Expression *AND_expression();

    78     Expression *equality_expression();

    79     Expression *relational_expression();

    80     Expression *shift_expression();

    81     Expression *additive_expression();

    82     Expression *multiplicative_expression();

    83     Expression *unary_expression();

    84     Expression *primary_expression();

    85 

    86     bool unary_expression_lookup();

    87     bool primary_expression_lookup();

    88 

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

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

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

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

    93     IntLiteral *createIntLiteral(const int arg);

    94 

    95     TokenEngine::TokenList createTokenList(int tokenIndex) const;

    96 

    97     int i;

    98     TokenEngine::TokenList m_tokenList;

    99     QVector<Type> m_typeList;

   100     TypedPool<Item> *m_memoryPool;

   101 };

   102 

   103 }

   104 

   105 QT_END_NAMESPACE

   106 

   107 #endif