anchor.diff:      _ -> {[], false}
     end.
   
  -%% =====================================================================
  -%% @spec pos_to_app(Node::syntaxtree(),Pos::{integer(), integer()})
  -%%                                  -> {ok, syntaxTree()} | {error, none}
  -%% 
  -%% @end
  -%% =====================================================================
  +%% =====================================================================
  +%% @spec pos_to_app(Node::syntaxtree(),Pos::{integer(), integer()})
  +%%                                  -> {ok, syntaxTree()} | {error, none}
  +%% 
  +%% @end
  +%% =====================================================================
   pos_to_app(Node, Pos) ->
     case refac_util:once_tdTU(fun pos_to_app_1/2, Node, Pos) of
       {_, false} -> {error, none};
  
positive.code:   end.
  
  
  %% =====================================================================
  %% @spec get_fun_def_info(Node::syntaxtree())
  %%                  -> {atom(), atom(), integer(), {integer(), integer()}}
  %% 
  %% @end
  %% =====================================================================
  get_fun_def_info(Node) ->
    As = refac_syntax:get_ann(Node),
    case lists:keysearch(fun_def, 1, As) of
  
negative.code:   end.
  
  
  %% =====================================================================
  %% @spec transform_spawn_call(Node::syntaxtree(), {C::integer(),
  %%       N::integer(), Name::atom(), Arity::integer(), ModName::atom()}) 
  %%                                               -> syntaxtree()
  %% 
  %% @end
  %% =====================================================================
  transform_spawn_call(Node, {C, N, Name, Arity, ModName}) ->
    Operator = refac_syntax:application_operator(Node),
    Arguments = refac_syntax:application_arguments(Node),
  