Can I pass a table using field-symbols to a PERFORM

Question

Can I pass an internal table using a field-symbol via a PERFORM that is stored in another program.
For example, I want to pass lt_data using a field-symbol.  If I can do this, please tell me how to define a field-symbol for a table and how I setup the parameters on the FORM.
   perform TEST_FIELD_SYMBOLS in program zadd_data
                  changing lt_data[]
                   if found.
Thanks.
Regards,
Ryan

Answer 1

Since in ABAP all FORM-paramters are passe call-by reference, it makes imho no difference if u pass a table directly or via a fieldsymbol.
U can pass a REF TO DATA to a form and then assign it to an FS like shown in the following example.
TYPES: BEGIN OF s_data,
         data TYPE c,
       END OF s_data,
       s_tab TYPE STANDARD TABLE OF s_data.
TYPES: r_tab TYPE REF TO data.
START-OF-SELECTION.
  DATA: t_foo TYPE s_tab.
  DATA: ref_foo TYPE r_tab.
  GET REFERENCE OF t_foo INTO ref_foo.
  PERFORM my_form_fs USING ref_foo.
FORM my_form_fs USING u_ref TYPE r_tab.
  FIELD-SYMBOLS: <fs> TYPE s_tab.
  DATA: w_tab TYPE s_data.
  ASSIGN u_ref->* TO <fs>.
  w_tab-data = 'X'.
  APPEND w_tab TO <fs>.
ENDFORM.
This also works for external performs....
Best regards,
    Sebastian
Message was edited by:
        Sebastian Rötzel