*----------------------------------------------------------------------*
*       CLASS lcl_sorter DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_sorter DEFINITION.
  PUBLIC SECTION.
    CLASS-METHODS:
      do_sort
        CHANGING ct_data TYPE REF TO data.
ENDCLASS.                    "lcl_sorter DEFINITION

*----------------------------------------------------------------------*
*       CLASS lcl_sorter IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_sorter IMPLEMENTATION.

  METHOD do_sort.

    DATA: lo_table_descr TYPE REF TO cl_abap_tabledescr.

    FIELD-SYMBOLS: <data> TYPE table.

    lo_table_descr
      ?= cl_abap_tabledescr=>describe_by_data_ref( p_data_ref = ct_data ).

    IF lo_table_descr->table_kind <> cl_abap_tabledescr=>tablekind_sorted.
      ASSIGN ct_data->* TO <data>.
      SORT <data>.
    ENDIF.

  ENDMETHOD.                    "do_sort

ENDCLASS.                    "lcl_sorter IMPLEMENTATION

  GET REFERENCE OF it_data INTO tab_ref.
  lcl_sorter=>do_sort( CHANGING ct_data = tab_ref ).