/* $Id: ValidationKitCodingGuidelines.cpp $ */ /** @file * VirtualBox Validation Kit - Coding Guidelines. */ /* * Copyright (C) 2010-2019 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ /** @page pg_validationkit_guideline Validation Kit Coding Guidelines * * The guidelines extends the VBox coding guidelines (@ref pg_vbox_guideline) * and currently only defines python prefixes and linting. * * * @section sec_validationkit_guideline_python Python * * Python is a typeless language so using prefixes to indicate the intended * type of a variable or attribute can be very helpful. * * Type prefixes: * - 'b' for byte (octect). * - 'ch' for a single character. * - 'f' for boolean and flags. * - 'fn' for function or method references. * - 'fp' for floating point values. * - 'i' for integers. * - 'l' for long integers. * - 'o' for objects, structures and anything with attributes that doesn't * match any of the other type prefixes. * - 'r' for a range or xrange. * - 's' for a string (can be unicode). * - 'su' for a unicode string when the distinction is important. * * Collection qualifiers: * - 'a' for a list or an array. * - 'd' for a dictionary. * - 'h' for a hash. * - 't' for a tuple. * * Other qualifiers: * - 'c' for a count. Implies integer or long integer type. Higest * priority. * - 'sec' for a second value. Implies long integer type. * - 'ms' for a millisecond value. Implies long integer type. * - 'us' for a microsecond value. Implies long integer type. * - 'ns' for a nanosecond value. Implies long integer type. * * The 'ms', 'us', 'ns' and 'se' qualifiers can be capitalized when prefixed by * 'c', e.g. cMsElapsed. While this technically means they are no longer a * prefix, it's easier to read and everyone understands what it means. * * The type collection qualifiers comes first, then the other qualifiers and * finally the type qualifier. * * Python statements are terminated by semicolons (';') as a convention. * */