Prefer Calculation Assignment Operators (+=, -=, *=)

WarningClean ABAP & Modern SyntaxQuickFix Ready#EC CALC_ASSIGNRemote Enabled

Overview

Prefer calculation assignment operators (+=, -=, *=, /=).

ATC Finding Message: Use calculation assignment operator (+=, -=) or ADD statement replacement

Rationale

Assignments such as lv_total = lv_total + 1 repeat the target variable and make the update harder to scan. Compound operators +=, -=, and *= express the change directly and avoid duplicating the left-hand side. Use them for simple arithmetic updates where the target is both source and result.

Non-Compliant

lv_stock = lv_stock - 1.
lv_price = lv_price * 1.19.

Compliant

lv_stock -= 1.
lv_price *= 1.19.

Automated QuickFix

This rule provides an automated QuickFix directly in Eclipse ABAP Development Tools (ADT):

1. Position the cursor on the flagged statement.
2. Press Ctrl + 1 (Quick Assist).
3. Select the automated refactoring to apply the clean syntax immediately.

Suppression

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

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

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

Technical Details

• Native ATC Class: ZCL_SKYLINT_PREF_CALC_OP
• Implementation File: zcl_skylint_pref_calc_op.clas.abap