// This file is automatically generated by DemeterJ.

EqualVisitor {
  {{
    private java.util.Stack history = new java.util.Stack();
    public EqualVisitor(Object obj) {
      history.push(obj);
    }
  }}

  before Main {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Cd_graph, globalimports, GlobalImports {{
    if (is_equal) {
      Cd_graph obj = (Cd_graph) history.peek();
      Object temp1 = obj.get_globalimports();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  }}
  after -> Cd_graph, globalimports, GlobalImports {{
    if (is_equal) history.pop();
  }}

  before -> Cd_graph, adjacencies, Adjacency_Nlist {{
    if (is_equal) {
      Cd_graph obj = (Cd_graph) history.peek();
      Object temp2 = obj.get_adjacencies();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  }}
  after -> Cd_graph, adjacencies, Adjacency_Nlist {{
    if (is_equal) history.pop();
  }}

  before Cd_graph {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> GlobalImports, imports, Import_SList {{
    if (is_equal) {
      GlobalImports obj = (GlobalImports) history.peek();
      Object temp3 = obj.get_imports();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> GlobalImports, imports, Import_SList {{
    if (is_equal) history.pop();
  }}

  before GlobalImports {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Import, packagename, PackageName {{
    if (is_equal) {
      Import obj = (Import) history.peek();
      Object temp4 = obj.get_packagename();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Import, packagename, PackageName {{
    if (is_equal) history.pop();
  }}

  before -> Import, importallclasses, ImportAllClasses {{
    if (is_equal) {
      Import obj = (Import) history.peek();
      Object temp5 = obj.get_importallclasses();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  after -> Import, importallclasses, ImportAllClasses {{
    if (is_equal) history.pop();
  }}

  before Import {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before ImportAllClasses {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> PackageName, first, Nonempty_PackageName {{
    if (is_equal) {
      PackageName obj = (PackageName) history.peek();
      Object temp6 = obj.get_first();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  }}
  after -> PackageName, first, Nonempty_PackageName {{
    if (is_equal) history.pop();
  }}

  before PackageName {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Adjacency, source, Vertex {{
    if (is_equal) {
      Adjacency obj = (Adjacency) history.peek();
      Object temp7 = obj.get_source();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  after -> Adjacency, source, Vertex {{
    if (is_equal) history.pop();
  }}

  before -> Adjacency, parameters, Vertex_Comma_list {{
    if (is_equal) {
      Adjacency obj = (Adjacency) history.peek();
      Object temp8 = obj.get_parameters();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> Adjacency, parameters, Vertex_Comma_list {{
    if (is_equal) history.pop();
  }}

  before -> Adjacency, ns, Neighbors {{
    if (is_equal) {
      Adjacency obj = (Adjacency) history.peek();
      Object temp9 = obj.get_ns();
      if(temp9==null) { is_equal = false; return; }
      history.push(temp9);
    }
  }}
  after -> Adjacency, ns, Neighbors {{
    if (is_equal) history.pop();
  }}

  before -> Adjacency, supers, SuperClasses {{
    if (is_equal) {
      Adjacency obj = (Adjacency) history.peek();
      Object temp10 = obj.get_supers();
      if(temp10==null) { is_equal = false; return; }
      history.push(temp10);
    }
  }}
  after -> Adjacency, supers, SuperClasses {{
    if (is_equal) history.pop();
  }}

  before Adjacency {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> SuperClasses, superclass_comma_list, SuperClass_Comma_list {{
    if (is_equal) {
      SuperClasses obj = (SuperClasses) history.peek();
      Object temp11 = obj.get_superclass_comma_list();
      if(temp11==null) { is_equal = false; return; }
      history.push(temp11);
    }
  }}
  after -> SuperClasses, superclass_comma_list, SuperClass_Comma_list {{
    if (is_equal) history.pop();
  }}

  before SuperClasses {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before SuperClass {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp12 = host.get_super_name();
    Object temp13 = ((SuperClass) obj).get_super_name();
    if(temp12 == null && temp13 == null) {}
    else if(temp12 == null ||
            temp13 == null ||
            !temp12.equals(temp13)) { is_equal = false; return; }
  }}

  before Neighbors {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Neighbors_wc, construct_ns, Any_vertex_List {{
    if (is_equal) {
      Neighbors_wc obj = (Neighbors_wc) history.peek();
      Object temp14 = obj.get_construct_ns();
      if(temp14==null) { is_equal = false; return; }
      history.push(temp14);
    }
  }}
  after -> Neighbors_wc, construct_ns, Any_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Neighbors_wc {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Construct_ns {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Alternat_ns, alternat_ns, Term_Bar_list {{
    if (is_equal) {
      Alternat_ns obj = (Alternat_ns) history.peek();
      Object temp15 = obj.get_alternat_ns();
      if(temp15==null) { is_equal = false; return; }
      history.push(temp15);
    }
  }}
  after -> Alternat_ns, alternat_ns, Term_Bar_list {{
    if (is_equal) history.pop();
  }}

  before -> Alternat_ns, common, Common {{
    if (is_equal) {
      Alternat_ns obj = (Alternat_ns) history.peek();
      Object temp16 = obj.get_common();
      if(temp16==null) { is_equal = false; return; }
      history.push(temp16);
    }
  }}
  after -> Alternat_ns, common, Common {{
    if (is_equal) history.pop();
  }}

  before Alternat_ns {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Common {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Repetit_n, sandwiched, Kernel_Sandwich {{
    if (is_equal) {
      Repetit_n obj = (Repetit_n) history.peek();
      Object temp17 = obj.get_sandwiched();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  after -> Repetit_n, sandwiched, Kernel_Sandwich {{
    if (is_equal) history.pop();
  }}

  before Repetit_n {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Kernel, nonempty, Term {{
    if (is_equal) {
      Kernel obj = (Kernel) history.peek();
      Object temp18 = obj.get_nonempty();
      if(temp18==null) { is_equal = false; return; }
      history.push(temp18);
    }
  }}
  after -> Kernel, nonempty, Term {{
    if (is_equal) history.pop();
  }}

  before -> Kernel, repeated, Term_Sandwich {{
    if (is_equal) {
      Kernel obj = (Kernel) history.peek();
      Object temp19 = obj.get_repeated();
      if(temp19==null) { is_equal = false; return; }
      history.push(temp19);
    }
  }}
  after -> Kernel, repeated, Term_Sandwich {{
    if (is_equal) history.pop();
  }}

  before Kernel {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Any_vertex {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Vertex {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp20 = host.get_vertex_name();
    Object temp21 = ((Vertex) obj).get_vertex_name();
    if(temp20 == null && temp21 == null) {}
    else if(temp20 == null ||
            temp21 == null ||
            !temp20.equals(temp21)) { is_equal = false; return; }
  }}

  before Syntax_vertex {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Print_command {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Print_indent {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Print_unindent {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Print_skip {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Print_space {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Regular_syntax {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp22 = host.get_string();
    Object temp23 = ((Regular_syntax) obj).get_string();
    if(temp22 == null && temp23 == null) {}
    else if(temp22 == null ||
            temp23 == null ||
            !temp22.equals(temp23)) { is_equal = false; return; }
  }}

  before -> Opt_labeled_term, vertex, Term {{
    if (is_equal) {
      Opt_labeled_term obj = (Opt_labeled_term) history.peek();
      Object temp24 = obj.get_vertex();
      if(temp24==null) { is_equal = false; return; }
      history.push(temp24);
    }
  }}
  after -> Opt_labeled_term, vertex, Term {{
    if (is_equal) history.pop();
  }}

  before Opt_labeled_term {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Regular {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Labeled {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp25 = host.get_label_name();
    Object temp26 = ((Labeled) obj).get_label_name();
    if(temp25 == null && temp26 == null) {}
    else if(temp25 == null ||
            temp26 == null ||
            !temp25.equals(temp26)) { is_equal = false; return; }
  }}

  before -> Term, vertex, Vertex {{
    if (is_equal) {
      Term obj = (Term) history.peek();
      Object temp27 = obj.get_vertex();
      if(temp27==null) { is_equal = false; return; }
      history.push(temp27);
    }
  }}
  after -> Term, vertex, Vertex {{
    if (is_equal) history.pop();
  }}

  before -> Term, module_name, Module_name {{
    if (is_equal) {
      Term obj = (Term) history.peek();
      Object temp28 = obj.get_module_name();
      if(temp28==null) { is_equal = false; return; }
      history.push(temp28);
    }
  }}
  after -> Term, module_name, Module_name {{
    if (is_equal) history.pop();
  }}

  before -> Term, actual_parameters, Term_Comma_list {{
    if (is_equal) {
      Term obj = (Term) history.peek();
      Object temp29 = obj.get_actual_parameters();
      if(temp29==null) { is_equal = false; return; }
      history.push(temp29);
    }
  }}
  after -> Term, actual_parameters, Term_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Term {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Module_name {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp30 = host.get_module_name();
    Object temp31 = ((Module_name) obj).get_module_name();
    if(temp30 == null && temp31 == null) {}
    else if(temp30 == null ||
            temp31 == null ||
            !temp30.equals(temp31)) { is_equal = false; return; }
  }}

  before Normal {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Optional_term, opt, Opt_labeled_term_Sandwich {{
    if (is_equal) {
      Optional_term obj = (Optional_term) history.peek();
      Object temp32 = obj.get_opt();
      if(temp32==null) { is_equal = false; return; }
      history.push(temp32);
    }
  }}
  after -> Optional_term, opt, Opt_labeled_term_Sandwich {{
    if (is_equal) history.pop();
  }}

  before Optional_term {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before PrintVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((PrintVisitor) obj).get_indent();
    is_equal = is_equal && host.get_needSpace() == ((PrintVisitor) obj).get_needSpace();
  }}

  before CopyVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp33 = host.get_copy();
    Object temp34 = ((CopyVisitor) obj).get_copy();
    if(temp33 == null && temp34 == null) {}
    else if(temp33 == null ||
            temp34 == null ||
            !temp33.equals(temp34)) { is_equal = false; return; }
  }}

  before SubgraphVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_is_equal() == ((SubgraphVisitor) obj).get_is_equal();
  }}

  before EqualVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_is_equal() == ((EqualVisitor) obj).get_is_equal();
  }}

  before DisplayVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((DisplayVisitor) obj).get_indent();
  }}

  before TraceVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((TraceVisitor) obj).get_indent();
  }}

  before UniversalVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Adjacency_Nlist, first, Nonempty_Adjacency_Nlist {{
    if (is_equal) {
      Adjacency_Nlist obj = (Adjacency_Nlist) history.peek();
      Object temp35 = obj.get_first();
      if(temp35==null) { is_equal = false; return; }
      history.push(temp35);
    }
  }}
  after -> Adjacency_Nlist, first, Nonempty_Adjacency_Nlist {{
    if (is_equal) history.pop();
  }}

  before Adjacency_Nlist {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Import_SList, first, Nonempty_Import_SList {{
    if (is_equal) {
      Import_SList obj = (Import_SList) history.peek();
      Object temp36 = obj.get_first();
      if(temp36==null) { is_equal = false; return; }
      history.push(temp36);
    }
  }}
  after -> Import_SList, first, Nonempty_Import_SList {{
    if (is_equal) history.pop();
  }}

  before Import_SList {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Vertex_Comma_list, first, Nonempty_Vertex_Comma_list {{
    if (is_equal) {
      Vertex_Comma_list obj = (Vertex_Comma_list) history.peek();
      Object temp37 = obj.get_first();
      if(temp37==null) { is_equal = false; return; }
      history.push(temp37);
    }
  }}
  after -> Vertex_Comma_list, first, Nonempty_Vertex_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Vertex_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> SuperClass_Comma_list, first, Nonempty_SuperClass_Comma_list {{
    if (is_equal) {
      SuperClass_Comma_list obj = (SuperClass_Comma_list) history.peek();
      Object temp38 = obj.get_first();
      if(temp38==null) { is_equal = false; return; }
      history.push(temp38);
    }
  }}
  after -> SuperClass_Comma_list, first, Nonempty_SuperClass_Comma_list {{
    if (is_equal) history.pop();
  }}

  before SuperClass_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Any_vertex_List, first, Nonempty_Any_vertex_List {{
    if (is_equal) {
      Any_vertex_List obj = (Any_vertex_List) history.peek();
      Object temp39 = obj.get_first();
      if(temp39==null) { is_equal = false; return; }
      history.push(temp39);
    }
  }}
  after -> Any_vertex_List, first, Nonempty_Any_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Any_vertex_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Term_Bar_list, first, Nonempty_Term_Bar_list {{
    if (is_equal) {
      Term_Bar_list obj = (Term_Bar_list) history.peek();
      Object temp40 = obj.get_first();
      if(temp40==null) { is_equal = false; return; }
      history.push(temp40);
    }
  }}
  after -> Term_Bar_list, first, Nonempty_Term_Bar_list {{
    if (is_equal) history.pop();
  }}

  before Term_Bar_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Kernel_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) {
      Kernel_Sandwich obj = (Kernel_Sandwich) history.peek();
      Object temp41 = obj.get_first();
      if(temp41==null) { is_equal = false; return; }
      history.push(temp41);
    }
  }}
  after -> Kernel_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before -> Kernel_Sandwich, inner, Kernel {{
    if (is_equal) {
      Kernel_Sandwich obj = (Kernel_Sandwich) history.peek();
      Object temp42 = obj.get_inner();
      if(temp42==null) { is_equal = false; return; }
      history.push(temp42);
    }
  }}
  after -> Kernel_Sandwich, inner, Kernel {{
    if (is_equal) history.pop();
  }}

  before -> Kernel_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) {
      Kernel_Sandwich obj = (Kernel_Sandwich) history.peek();
      Object temp43 = obj.get_second();
      if(temp43==null) { is_equal = false; return; }
      history.push(temp43);
    }
  }}
  after -> Kernel_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Kernel_Sandwich {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Term_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) {
      Term_Sandwich obj = (Term_Sandwich) history.peek();
      Object temp44 = obj.get_first();
      if(temp44==null) { is_equal = false; return; }
      history.push(temp44);
    }
  }}
  after -> Term_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before -> Term_Sandwich, inner, Term {{
    if (is_equal) {
      Term_Sandwich obj = (Term_Sandwich) history.peek();
      Object temp45 = obj.get_inner();
      if(temp45==null) { is_equal = false; return; }
      history.push(temp45);
    }
  }}
  after -> Term_Sandwich, inner, Term {{
    if (is_equal) history.pop();
  }}

  before -> Term_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) {
      Term_Sandwich obj = (Term_Sandwich) history.peek();
      Object temp46 = obj.get_second();
      if(temp46==null) { is_equal = false; return; }
      history.push(temp46);
    }
  }}
  after -> Term_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Term_Sandwich {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Term_Comma_list, first, Nonempty_Term_Comma_list {{
    if (is_equal) {
      Term_Comma_list obj = (Term_Comma_list) history.peek();
      Object temp47 = obj.get_first();
      if(temp47==null) { is_equal = false; return; }
      history.push(temp47);
    }
  }}
  after -> Term_Comma_list, first, Nonempty_Term_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Term_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Opt_labeled_term_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) {
      Opt_labeled_term_Sandwich obj = (Opt_labeled_term_Sandwich) history.peek();
      Object temp48 = obj.get_first();
      if(temp48==null) { is_equal = false; return; }
      history.push(temp48);
    }
  }}
  after -> Opt_labeled_term_Sandwich, first, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before -> Opt_labeled_term_Sandwich, inner, Opt_labeled_term {{
    if (is_equal) {
      Opt_labeled_term_Sandwich obj = (Opt_labeled_term_Sandwich) history.peek();
      Object temp49 = obj.get_inner();
      if(temp49==null) { is_equal = false; return; }
      history.push(temp49);
    }
  }}
  after -> Opt_labeled_term_Sandwich, inner, Opt_labeled_term {{
    if (is_equal) history.pop();
  }}

  before -> Opt_labeled_term_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) {
      Opt_labeled_term_Sandwich obj = (Opt_labeled_term_Sandwich) history.peek();
      Object temp50 = obj.get_second();
      if(temp50==null) { is_equal = false; return; }
      history.push(temp50);
    }
  }}
  after -> Opt_labeled_term_Sandwich, second, Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Opt_labeled_term_Sandwich {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Syntax_vertex_List, first, Nonempty_Syntax_vertex_List {{
    if (is_equal) {
      Syntax_vertex_List obj = (Syntax_vertex_List) history.peek();
      Object temp51 = obj.get_first();
      if(temp51==null) { is_equal = false; return; }
      history.push(temp51);
    }
  }}
  after -> Syntax_vertex_List, first, Nonempty_Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Syntax_vertex_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_PackageName, next, Nonempty_PackageName {{
    if (is_equal) {
      Nonempty_PackageName obj = (Nonempty_PackageName) history.peek();
      Object temp54 = obj.get_next();
      if(temp54==null) { is_equal = false; return; }
      history.push(temp54);
    }
  }}
  after -> Nonempty_PackageName, next, Nonempty_PackageName {{
    if (is_equal) history.pop();
  }}

  before Nonempty_PackageName {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp52 = host.get_it();
    Object temp53 = ((Nonempty_PackageName) obj).get_it();
    if(temp52 == null && temp53 == null) {}
    else if(temp52 == null ||
            temp53 == null ||
            !temp52.equals(temp53)) { is_equal = false; return; }
  }}

  before -> Nonempty_Adjacency_Nlist, it, Adjacency {{
    if (is_equal) {
      Nonempty_Adjacency_Nlist obj = (Nonempty_Adjacency_Nlist) history.peek();
      Object temp55 = obj.get_it();
      if(temp55==null) { is_equal = false; return; }
      history.push(temp55);
    }
  }}
  after -> Nonempty_Adjacency_Nlist, it, Adjacency {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Adjacency_Nlist, next, Nonempty_Adjacency_Nlist {{
    if (is_equal) {
      Nonempty_Adjacency_Nlist obj = (Nonempty_Adjacency_Nlist) history.peek();
      Object temp56 = obj.get_next();
      if(temp56==null) { is_equal = false; return; }
      history.push(temp56);
    }
  }}
  after -> Nonempty_Adjacency_Nlist, next, Nonempty_Adjacency_Nlist {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Adjacency_Nlist {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Import_SList, it, Import {{
    if (is_equal) {
      Nonempty_Import_SList obj = (Nonempty_Import_SList) history.peek();
      Object temp57 = obj.get_it();
      if(temp57==null) { is_equal = false; return; }
      history.push(temp57);
    }
  }}
  after -> Nonempty_Import_SList, it, Import {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Import_SList, next, Nonempty_Import_SList {{
    if (is_equal) {
      Nonempty_Import_SList obj = (Nonempty_Import_SList) history.peek();
      Object temp58 = obj.get_next();
      if(temp58==null) { is_equal = false; return; }
      history.push(temp58);
    }
  }}
  after -> Nonempty_Import_SList, next, Nonempty_Import_SList {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Import_SList {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Vertex_Comma_list, it, Vertex {{
    if (is_equal) {
      Nonempty_Vertex_Comma_list obj = (Nonempty_Vertex_Comma_list) history.peek();
      Object temp59 = obj.get_it();
      if(temp59==null) { is_equal = false; return; }
      history.push(temp59);
    }
  }}
  after -> Nonempty_Vertex_Comma_list, it, Vertex {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Vertex_Comma_list, next, Nonempty_Vertex_Comma_list {{
    if (is_equal) {
      Nonempty_Vertex_Comma_list obj = (Nonempty_Vertex_Comma_list) history.peek();
      Object temp60 = obj.get_next();
      if(temp60==null) { is_equal = false; return; }
      history.push(temp60);
    }
  }}
  after -> Nonempty_Vertex_Comma_list, next, Nonempty_Vertex_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Vertex_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_SuperClass_Comma_list, it, SuperClass {{
    if (is_equal) {
      Nonempty_SuperClass_Comma_list obj = (Nonempty_SuperClass_Comma_list) history.peek();
      Object temp61 = obj.get_it();
      if(temp61==null) { is_equal = false; return; }
      history.push(temp61);
    }
  }}
  after -> Nonempty_SuperClass_Comma_list, it, SuperClass {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_SuperClass_Comma_list, next, Nonempty_SuperClass_Comma_list {{
    if (is_equal) {
      Nonempty_SuperClass_Comma_list obj = (Nonempty_SuperClass_Comma_list) history.peek();
      Object temp62 = obj.get_next();
      if(temp62==null) { is_equal = false; return; }
      history.push(temp62);
    }
  }}
  after -> Nonempty_SuperClass_Comma_list, next, Nonempty_SuperClass_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Nonempty_SuperClass_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Any_vertex_List, it, Any_vertex {{
    if (is_equal) {
      Nonempty_Any_vertex_List obj = (Nonempty_Any_vertex_List) history.peek();
      Object temp63 = obj.get_it();
      if(temp63==null) { is_equal = false; return; }
      history.push(temp63);
    }
  }}
  after -> Nonempty_Any_vertex_List, it, Any_vertex {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Any_vertex_List, next, Nonempty_Any_vertex_List {{
    if (is_equal) {
      Nonempty_Any_vertex_List obj = (Nonempty_Any_vertex_List) history.peek();
      Object temp64 = obj.get_next();
      if(temp64==null) { is_equal = false; return; }
      history.push(temp64);
    }
  }}
  after -> Nonempty_Any_vertex_List, next, Nonempty_Any_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Any_vertex_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Term_Bar_list, it, Term {{
    if (is_equal) {
      Nonempty_Term_Bar_list obj = (Nonempty_Term_Bar_list) history.peek();
      Object temp65 = obj.get_it();
      if(temp65==null) { is_equal = false; return; }
      history.push(temp65);
    }
  }}
  after -> Nonempty_Term_Bar_list, it, Term {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Term_Bar_list, next, Nonempty_Term_Bar_list {{
    if (is_equal) {
      Nonempty_Term_Bar_list obj = (Nonempty_Term_Bar_list) history.peek();
      Object temp66 = obj.get_next();
      if(temp66==null) { is_equal = false; return; }
      history.push(temp66);
    }
  }}
  after -> Nonempty_Term_Bar_list, next, Nonempty_Term_Bar_list {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Term_Bar_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Term_Comma_list, it, Term {{
    if (is_equal) {
      Nonempty_Term_Comma_list obj = (Nonempty_Term_Comma_list) history.peek();
      Object temp67 = obj.get_it();
      if(temp67==null) { is_equal = false; return; }
      history.push(temp67);
    }
  }}
  after -> Nonempty_Term_Comma_list, it, Term {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Term_Comma_list, next, Nonempty_Term_Comma_list {{
    if (is_equal) {
      Nonempty_Term_Comma_list obj = (Nonempty_Term_Comma_list) history.peek();
      Object temp68 = obj.get_next();
      if(temp68==null) { is_equal = false; return; }
      history.push(temp68);
    }
  }}
  after -> Nonempty_Term_Comma_list, next, Nonempty_Term_Comma_list {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Term_Comma_list {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Syntax_vertex_List, it, Syntax_vertex {{
    if (is_equal) {
      Nonempty_Syntax_vertex_List obj = (Nonempty_Syntax_vertex_List) history.peek();
      Object temp69 = obj.get_it();
      if(temp69==null) { is_equal = false; return; }
      history.push(temp69);
    }
  }}
  after -> Nonempty_Syntax_vertex_List, it, Syntax_vertex {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Syntax_vertex_List, next, Nonempty_Syntax_vertex_List {{
    if (is_equal) {
      Nonempty_Syntax_vertex_List obj = (Nonempty_Syntax_vertex_List) history.peek();
      Object temp70 = obj.get_next();
      if(temp70==null) { is_equal = false; return; }
      history.push(temp70);
    }
  }}
  after -> Nonempty_Syntax_vertex_List, next, Nonempty_Syntax_vertex_List {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Syntax_vertex_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  return boolean {{ is_equal }}
}