core:
import edu.neu.ccs.demeter.dj.*;
import java.lang.*;
import java.util.*;

import edu.neu.ccs.demeter.*;
add: abstract class Opt_labeled_term extends Any_vertex {
  protected Term vertex;
  public Term get_vertex() {{ return vertex; }}
  public void set_vertex(Term new_vertex)
    {{ vertex = new_vertex; }}
  public constructor Opt_labeled_term() {{ super(); }}
  public constructor Opt_labeled_term(Term vertex) {{
    super();
    set_vertex(vertex);
  }}
{{
    private static String builtinTypes[] = {
      "boolean", "char", "byte", "short", "int", "long", "float", "double"
    };
    private static String terminalClasses[] = {
      // from java.lang.*:
      "Boolean", "Character", "Integer", "Long", "Float", "Double",
      "Number", "String", "StringBuffer",
      // from demeter.*:
      "Ident", "Text", "Line", "Word"
    };
  }}
  boolean isBuiltinType() {{
    String s = get_class_name();
    for (int i = 0; i < builtinTypes.length; i++) {
      if (builtinTypes[i].equals(s)) return true;
    }
    return false;
  }}
  boolean isTerminalClass() {{
    String s = get_class_name();
    for (int i = 0; i < terminalClasses.length; i++) {
      if (terminalClasses[i].equals(s)) return true;
    }
    return false;
  }}
  boolean isKnownTerminal() {{
    return isBuiltinType() || isTerminalClass();
  }}
  String get_class_name() {{
    __V_Opt_labeled_term_get_class_name v0 = new __V_Opt_labeled_term_get_class_name();
    v0.start();
    __trav_get_class_name(v0);
    v0.finish();
    return v0.get_return_val();
  }}
{{  void universal_trv0_bef(UniversalVisitor _v_) {
    super.universal_trv0_bef(_v_);
    ((UniversalVisitor) _v_).before(this);
  }
}}
{{  void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
    super.universal_trv0_aft(_v_);
  }
}}
{{  void universal_trv0(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).before_vertex(this, vertex);
    vertex.universal_trv0(_v_);
    ((UniversalVisitor) _v_).after_vertex(this, vertex);
    super.universal_trv0(_v_);
  }
}}
{{  void __trav_print_Cd_graph_trv_bef(PrintVisitor __v0) {
    super.__trav_print_Cd_graph_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_print_Cd_graph_trv_aft(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_print_Cd_graph_trv_aft(__v0);
  }
}}
{{  void __trav_print_Cd_graph_trv(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_print_Cd_graph_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_print_Cd_graph_trv(__v0);
  }
}}
{{  void __trav_display_Cd_graph_trv_bef(DisplayVisitor __v0) {
    super.__trav_display_Cd_graph_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_display_Cd_graph_trv_aft(DisplayVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_display_Cd_graph_trv_aft(__v0);
  }
}}
{{  void __trav_display_Cd_graph_trv(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_display_Cd_graph_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_display_Cd_graph_trv(__v0);
  }
}}
{{  void __trav_print_Adjacency_trv_bef(PrintVisitor __v0) {
    super.__trav_print_Adjacency_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_print_Adjacency_trv_aft(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_print_Adjacency_trv_aft(__v0);
  }
}}
{{  void __trav_print_Adjacency_trv(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_print_Adjacency_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_print_Adjacency_trv(__v0);
  }
}}
{{  void __trav_display_Any_vertex_trv_bef(DisplayVisitor __v0) {
    super.__trav_display_Any_vertex_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_display_Any_vertex_trv_aft(DisplayVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_display_Any_vertex_trv_aft(__v0);
  }
}}
{{  void __trav_display_Any_vertex_trv(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_display_Any_vertex_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_display_Any_vertex_trv(__v0);
  }
}}
{{  void __trav_print_Any_vertex_trv_bef(PrintVisitor __v0) {
    super.__trav_print_Any_vertex_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_print_Any_vertex_trv_aft(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_print_Any_vertex_trv_aft(__v0);
  }
}}
{{  void __trav_print_Any_vertex_trv(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_print_Any_vertex_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_print_Any_vertex_trv(__v0);
  }
}}
{{  public void __trav_get_class_name(__V_Opt_labeled_term_get_class_name __v0) {
    __trav_get_class_name_Opt_labeled_term_trv(__v0);
  }
}}
{{  void __trav_get_class_name_Opt_labeled_term_trv_bef(__V_Opt_labeled_term_get_class_name __v0) {
    super.__trav_get_class_name_Opt_labeled_term_trv_bef(__v0);
  }
}}
{{  void __trav_get_class_name_Opt_labeled_term_trv_aft(__V_Opt_labeled_term_get_class_name __v0) {
    super.__trav_get_class_name_Opt_labeled_term_trv_aft(__v0);
  }
}}
{{  void __trav_get_class_name_Opt_labeled_term_trv(__V_Opt_labeled_term_get_class_name __v0) {
    vertex.__trav_get_class_name_Opt_labeled_term_trv(__v0);
  }
}}
{{  void __trav_display_Any_vertex_List_trv_bef(DisplayVisitor __v0) {
    super.__trav_display_Any_vertex_List_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_display_Any_vertex_List_trv_aft(DisplayVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_display_Any_vertex_List_trv_aft(__v0);
  }
}}
{{  void __trav_display_Any_vertex_List_trv(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_display_Any_vertex_List_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_display_Any_vertex_List_trv(__v0);
  }
}}
{{  void __trav_print_Any_vertex_List_trv_bef(PrintVisitor __v0) {
    super.__trav_print_Any_vertex_List_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_print_Any_vertex_List_trv_aft(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_print_Any_vertex_List_trv_aft(__v0);
  }
}}
{{  void __trav_print_Any_vertex_List_trv(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).before_vertex(this, vertex);
    vertex.__trav_print_Any_vertex_List_trv(__v0);
    ((UniversalVisitor) __v0).after_vertex(this, vertex);
    super.__trav_print_Any_vertex_List_trv(__v0);
  }
}}
}