Avoid Obsolete ! Escape Prefix in Parameter Names

WarningAnti-Patterns & Bad PracticesQuickFix Ready#EC PARAM_ESCAPERemote Enabled

Overview

Avoid unnecessary parameter escape (!param).

ATC Finding Message: Escape params with ! only on keyword clash

Rationale

The ! escape prefix is legacy syntax used to force a parameter name to be treated literally. It adds noise to signatures and is unnecessary in modern ABAP, where parameter names are unambiguous. Remove the ! and use a clear parameter name instead.

Non-Compliant

METHODS process
  IMPORTING !iv_data TYPE string.

Compliant

METHODS process
  IMPORTING iv_data TYPE string.

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 PARAM_ESCAPE

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

Technical Details

• Native ATC Class: ZCL_SKYLINT_NO_PARAM_ESCAPE
• Implementation File: zcl_skylint_no_param_escape.clas.abap