Limit Cyclomatic Complexity

WarningMetrics & Complexity Limits#EC CYCLO_COMPRemote Enabled

Overview

Cyclomatic Complexity Threshold.

ATC Finding Message: Procedure cyclomatic complexity exceeds threshold

Rationale

Cyclomatic complexity counts the independent decision paths through a method, so a high value means many branches need separate tests. Such methods are hard to understand and easy to break when one condition changes. Split the decisions into cohesive helper methods or strategy objects.

Non-Compliant

METHOD check_order.
  IF is_blocked( ).
    RETURN.
  ENDIF.
  IF has_no_stock( ).
    RETURN.
  ENDIF.
  IF is_over_limit( ).
    RETURN.
  ENDIF.
  IF needs_approval( ).
    approve( ).
  ENDIF.
  IF is_priority( ).
    expedite( ).
  ENDIF.
  release( ).
ENDMETHOD.

Compliant

METHOD check_order.
  validate_order( ).
  approve_order( ).
  release_order( ).
ENDMETHOD.

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
MAX_COMPLEXITY	Integer	5

Suppression

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

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

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

Technical Details

• Native ATC Class: ZCL_SKYLINT_MAX_CYCLO_COMP
• Implementation File: zcl_skylint_max_cyclo_comp.clas.abap