C function ( ) { return instance ; }
returns the current list . this will be the underlying instance . this can be used if it 's to be kept once the current scope expires . concode_field_sep Deque<C> stack concode_elem_sep C instance concode_field_sep C init concode_elem_sep C apply concode_elem_sep boolean isEmpty concode_elem_sep C newInstance concode_elem_sep String toString concode_elem_sep Nestable<C> begin concode_elem_sep void close