AutoRankEditor.EnumExtensions.GetShortString C# (CSharp) Метод

        public static string GetShortString( this GroupNodeType op ) {
            switch( op ) {
                case GroupNodeType.AND:
                    return "and";
                case GroupNodeType.NAND:
                    return "and not";
                case GroupNodeType.NOR:
                    return "or not";
                case GroupNodeType.OR:
                    return "or";
                default:
                    throw new ArgumentOutOfRangeException( "op" );
            }
        }
    }