cpp

// Replacement for osh/arith_parse

#ifndef FRONTEND_TDOP_H

#define FRONTEND_TDOP_H

#include "_gen/frontend/id_kind.asdl.h"

#include "_gen/frontend/syntax.asdl.h"

using id_kind_asdl::Id_t;

using syntax_asdl::arith_expr_t;

using syntax_asdl::word_t;

namespace tdop {

class TdopParser;  // forward declaration

typedef arith_expr_t* (*LeftFunc)(TdopParser*, word_t*, arith_expr_t*, int);

typedef arith_expr_t* (*NullFunc)(TdopParser*, word_t*, int);

struct LeftInfo {

  LeftFunc led;

  int lbp;

  int rbp;

  DISALLOW_COPY_AND_ASSIGN(LeftInfo)

};

struct NullInfo {

  NullFunc nud;

  int bp;

  DISALLOW_COPY_AND_ASSIGN(NullInfo)

};

class ParserSpec {

 public:

  // No fields

  ParserSpec() {

  }

  LeftInfo* LookupLed(Id_t id);

  NullInfo* LookupNud(Id_t id);

  static constexpr ObjHeader obj_header() {

    return ObjHeader::ClassFixed(kZeroMask, sizeof(ParserSpec));

  }

  DISALLOW_COPY_AND_ASSIGN(ParserSpec)

};

}  // namespace tdop

#endif  // FRONTEND_TDOP_H