anchor.diff:  get_vars(File, FunName, Arity, Range={range, _,_}) ->
       [Range];
   get_vars(File, FunName, Arity, VarFilter) ->
  -    io:format("getvars:~p\n", [{File, FunName, Arity, VarFilter}]),
       ModName=list_to_atom(filename:basename(File, ".erl")),
       FunDef=api_refac:mfa_to_fun_def(File, {ModName, FunName, Arity}),
       case FunDef of 
  
positive.code:     lists:append(CmdLists);
  rename_var(ModOrFile, FA, OldVarName, NewVarName, true, SearchPaths) ->
      File=gen_file_names(ModOrFile, true, SearchPaths),
      io:format("File:~p\n", [File]),
      case File of
          [] -> 
              [];
  
negative.code:  
  rename_var_1(File, FA, VarFilter, NewVarName, SearchPaths) ->
      FAs= get_fun_arity(File, FA),
      [{refactoring, rename_var, 
        [File, {F, A}, V, new_name_gen(File, {F, A}, V, NewVarName), 
         SearchPaths, ?context]}
  