code: @Override
  	public boolean eIsSet(int featureID)
  	{
  		switch (featureID)
  		{
  			case XbasePackage.XFEATURE_CALL__FEATURE_CALL_ARGUMENTS:
  				return featureCallArguments != null && !featureCallArguments.isEmpty();
  			case XbasePackage.XFEATURE_CALL__EXPLICIT_OPERATION_CALL:
  				return explicitOperationCall != EXPLICIT_OPERATION_CALL_EDEFAULT;
  			case XbasePackage.XFEATURE_CALL__TYPE_LITERAL:
  				return typeLiteral != TYPE_LITERAL_EDEFAULT;
  			case XbasePackage.XFEATURE_CALL__PACKAGE_FRAGMENT:
  				return packageFragment != PACKAGE_FRAGMENT_EDEFAULT;
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated