topic New Syntax Read/ASSERT in Application Development and Automation Discussions

New Syntax Read/ASSERT

former_member647100 — Wed, 08 Apr 2020 06:45:27 GMT

Hello together,

I used a READ TABLE statement in combination with ASSIGNING and now replaced it by the following coding:

TRY.           

ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ]  TO <ls_fu_root>.         

CATCH cx_sy_itab_line_not_found.           

" TBD: Error Handling       

ENDTRY.

Directly after this read statement, there was an ASSERT sy-subrc = 0 in the old version.

How to enable this by using the new syntax? Can that be replaced if we now do something like ASSERT cx_sy_itab_line_not_found is bound in the CATCH statement?

Any Ideas?

Kind regards

Re: New Syntax Read/ASSERT

Sandra_Rossi — Wed, 08 Apr 2020 08:23:43 GMT

As of 7.53, ASSERT has no replacement, hopefully.

If you understand what ASSERT means, don't replace it with TRY CATCH.

Re: New Syntax Read/ASSERT

former_member647100 — Wed, 08 Apr 2020 08:52:21 GMT

That means, it is not possible to replace the read statement when an assert follows, correct?

Re: New Syntax Read/ASSERT

michael_piesche — Wed, 08 Apr 2020 10:30:35 GMT

Why are you trying to 'replace' everything?
The READ TABLE statement and the ASSERT statement are not directly LINKED to each other.
After a failed ASSIGN statement, the sy-subrc is still set to "4 Assignment not completed.", if the assignment couldnt be performed in various instances, so the ASSERT sy-subrc = 0. statement still works for your coding (unless you add more coding in between the ASSIGN and the ASSERT that could potentially change the sy-subrc):

TRY.           
  ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ]  TO <ls_fu_root>.         
CATCH cx_sy_itab_line_not_found.                 
ENDTRY.
ASSERT sy-subrc = 0.

In other instances, you might want to rewrite it to something like this, to make sure that the assignment was successfull. This way you dont rely on sy-subrc, which would also make it more robust and more straight forward:

UNASSIGN <ls_fu_root>.
TRY.           
  ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ]  TO <ls_fu_root>.         
CATCH cx_sy_itab_line_not_found.           
  " TBD: Error Handling       
ENDTRY.
ASSERT <ls_fu_root> IS ASSIGNED.

Re: New Syntax Read/ASSERT

teshanappadoo — Wed, 08 Apr 2020 12:54:12 GMT

If you are using ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ] TO <ls_fu_root>.

then why not check sy-subrc = 0 or if you want to raise some exception then sy-subrc <> 0.

ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ] TO <ls_fu_root>.

if sy-subrc = 0.

" do something

endif,

ASSIGN mt_fu_root_data[ key = <ls_dlv_kl_fu>-target_key ] TO <ls_fu_root>.

if sy-subrc <> 0.

" raise exception.

endif.

Refer to: https://blogs.sap.com/2015/10/25/abap-740-quick-reference/

Regards,

Teshan