import edu.neu.ccs.demeter.dj.*;
import java.util.*;
import edu.neu.ccs.demeter.*;
 class Kernel {
  protected Term nonempty;
  public Term get_nonempty() { return nonempty;   }
  public void set_nonempty(Term new_nonempty) { nonempty = new_nonempty;   }
  protected Term_Sandwich repeated;
  public Term_Sandwich get_repeated() { return repeated;   }
  public void set_repeated(Term_Sandwich new_repeated) { repeated = new_repeated;   }
  public Kernel() { super();   }
  public Kernel(Term nonempty, Term_Sandwich repeated) {
    super();
    set_nonempty(nonempty);
    set_repeated(repeated);
    }
  public static Kernel parse(java.io.Reader in) throws ParseException { return new Parser(in)._Kernel();   }
  public static Kernel parse(java.io.InputStream in) throws ParseException { return new Parser(in)._Kernel();   }
  public static Kernel parse(String s) {
    try { return parse(new java.io.StringReader(s)); }
    catch (ParseException e) {
      throw new RuntimeException(e.toString());
    }
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    if (nonempty != null) {
      ((UniversalVisitor) _v_).before_nonempty(this, nonempty);
      nonempty.universal_trv0(_v_);
      ((UniversalVisitor) _v_).after_nonempty(this, nonempty);
    }
    ((UniversalVisitor) _v_).before_repeated(this, repeated);
    repeated.universal_trv0(_v_);
    ((UniversalVisitor) _v_).after_repeated(this, repeated);
    universal_trv0_aft(_v_);
  }

}