struct-type.abap

DATA: LO_STRUCT TYPE REF TO CL_ABAP_STRUCTDESCR,
      lo_type type ref to cl_abap_typedescr.
data:   gI_COMP   TYPE ABAP_COMPONENT_TAB.
      
"Get list of structure
LO_STRUCT ?= CL_ABAP_TYPEDESCR=>DESCRIBE_BY_DATA( imi_table ).
gI_COMP = LO_STRUCT->GET_COMPONENTS( ).

"Get type of element  
clear lo_type.
LO_type ?= CL_ABAP_TYPEDESCR=>DESCRIBE_BY_DATA( <fs_value> ).
lv_datatype = LO_type->absolute_name.