Avoid Classic List Processing Statements

WarningAnti-Patterns & Bad Practices#EC LIST_PROCRemote Enabled

Overview

Prohibit classic list processing statements.

ATC Finding Message: List processing statement is forbidden in OO/Cloud ABAP

Rationale

Classic list processing with WRITE, ULINE, FORMAT, and READ LINE only works in SAP GUI list reports and is unavailable in ABAP Cloud. It couples business logic to screen output and makes the code impossible to test independently. Use application logging or a modern UI framework instead of writing directly to a list.

Non-Compliant

WRITE / 'Order processed:'.
ULINE.

Compliant

mo_logger->info( 'Order processed:' ).

Configuration & Thresholds

This check can be fine-tuned directly in the ATC Check Variant Editor (CHKV) in Eclipse ADT:

Parameter Name	Data Type	Default Value
CHECK_WRITE	Boolean	true
CHECK_ULINE	Boolean	true
CHECK_SKIP	Boolean	true
CHECK_OTHER	Boolean	true
IGN_WRITE_TO	Boolean	true
CHECK_LEAVE	Boolean	true
CHECK_REJECT	Boolean	true

Suppression

To suppress findings for this rule, append the pseudo-comment to the statement:

" Standard pseudo-comment:
... "#EC LIST_PROC

" SAP CI_ prefix format:
... "#EC CI_LIST_PROC

Technical Details

• Native ATC Class: ZCL_SKYLINT_NO_LIST_PROC
• Implementation File: zcl_skylint_no_list_proc.clas.abap