anchor.diff:              {ok, Val}
       end;
   
  +spec(raw_atom, Val) when is_atom(Val) ->
  +    {ok, Val};
  +
  +spec(raw_atom, _Val) ->
  +    error;
  +
   spec(atom, Val) ->
       to_existing_atom(Val);
   
  
positive.code:             end;
          error ->
              error
      end;
  
  spec(atom_or_binary, Val) ->
      case to_existing_atom(Val) of
          {ok, Atom} ->
              {ok, Atom};
          error ->
              {ok, to_bin(Val)}
      end;
  
  spec({atom_or_binary, List}, Val) ->
  
negative.code: -type syntax_term() ::
      ignore |
      any |
      atom | {atom, [atom()]} | {atom_or_binary, [atom()]} |
      new_atom | raw_atom |
      boolean |
      list |
      pid |
  