20    virtual IR::MethodCallStatement *genHdrExtract(IR::Member *pkt_call, IR::Expression *mem);
 
   22                                    const IR::Type_HeaderUnion *hdru, IR::ArrayIndex *arr_ind,
 
   23                                    IR::Member *pkt_call);
 
   25    virtual IR::ParserState *genStartState();
 
   26    virtual IR::ParserState *genHdrStates();
 
   27    virtual void genState(
cstring name);
 
   28    virtual void buildParserTree();