anchor.diff:      CLASS-DATA: gi_page        TYPE REF TO lif_gui_page,
                   gt_stack       TYPE TABLE OF REF TO lif_gui_page,
                   gt_assets      TYPE char40_t,
  +                go_router      TYPE REF TO lcl_gui_router,
                   go_html_viewer TYPE REF TO cl_gui_html_viewer.
   
       CLASS-METHODS view
  
positive.code: ENDINTERFACE.
  
  *----------------------------------------------------------------------*
  *       CLASS lcl_view DEFINITION
  *----------------------------------------------------------------------*
  *
  *----------------------------------------------------------------------*
  CLASS lcl_gui DEFINITION FINAL.
  
  
negative.code: 
      CLASS-METHODS back
        RETURNING VALUE(rv_exit) TYPE xfeld
        RAISING   lcx_exception.
  
      CLASS-METHODS go_home
        RAISING   lcx_exception.
  
      CLASS-METHODS call_page
  