[ABAP] 변수 속성 가져오기 (ref to cl_abap_typedescr)

TYPES: my_type TYPE i.
DATA: my_data TYPE my_type,
      descr_ref TYPE ref to cl_abap_typedescr.

START-OF-SELECTION.

descr_ref = cl_abap_typedescr=>describe_by_data( my_data ).

WRITE: / 'Typename:', descr_ref-> absolute_name.
WRITE: / 'Kind :', descr_ref->type_kind.
WRITE: / 'Length :', descr_ref->length.
WRITE: / 'Decimals:', descr_ref->decimals.