.clang-format

# Copyright (C) 2016 Olivier Goffart <ogoffart@woboq.com>
#
# You may use this file under the terms of the 3-clause BSD license.
# See the file LICENSE from this package for details.

# This is the clang-format configuration style to be used by Qt,
# based on the rules from https://wiki.qt.io/Qt_Coding_Style and
# https://wiki.qt.io/Coding_Conventions

---
# Webkit style was loosely based on the Qt style
BasedOnStyle: WebKit

Standard: c++14

# Column width is limited to 100 in accordance with Qt Coding Style.
# https://wiki.qt.io/Qt_Coding_Style
# Note that this may be changed at some point in the future.
ColumnLimit: 100
# How much weight do extra characters after the line length limit have.
# PenaltyExcessCharacter: 4

# Disable reflow of some specific comments
# qdoc comments: indentation rules are different.
# Translation comments and SPDX license identifiers are also excluded.
CommentPragmas: "^!|^:|^ SPDX-License-Identifier:"

# We want a space between the type and the star for pointer types.
PointerBindsToType: false

# We use template< without space.
SpaceAfterTemplateKeyword: false

# We want to break before the operators, but not before a '='.
BreakBeforeBinaryOperators: NonAssignment

# Braces are usually attached, but not after functions or class declarations.
BreakBeforeBraces: Custom
BraceWrapping:
    AfterClass: true
    AfterControlStatement: false
    AfterEnum: false
    AfterFunction: true
    AfterNamespace: false
    AfterObjCDeclaration: false
    AfterStruct: true
    AfterUnion: false
    BeforeCatch: false
    BeforeElse: false
    IndentBraces: false

# When constructor initializers do not fit on one line, put them each on a new line.
ConstructorInitializerAllOnOneLineOrOnePerLine: true
# Indent initializers by 4 spaces
ConstructorInitializerIndentWidth: 4

# Indent width for line continuations.
ContinuationIndentWidth: 8

# No indentation for namespaces.
NamespaceIndentation: None

# Allow indentation for preprocessing directives (if/ifdef/endif). https://reviews.llvm.org/rL312125
IndentPPDirectives: AfterHash
# We only indent with 2 spaces for preprocessor directives
PPIndentWidth: 2

# Horizontally align arguments after an open bracket.
# The coding style does not specify the following, but this is what gives
# results closest to the existing code.
AlignAfterOpenBracket: true
AlwaysBreakTemplateDeclarations: true

# Ideally we should also allow less short function in a single line, but
# clang-format does not handle that.
AllowShortFunctionsOnASingleLine: Inline

# The coding style specifies some include order categories, but also tells to
# separate categories with an empty line. It does not specify the order within
# the categories. Since the SortInclude feature of clang-format does not
# re-order includes separated by empty lines, the feature is not used.
SortIncludes: false

# macros for which the opening brace stays attached.
ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH, forever, Q_FOREVER, QBENCHMARK, QBENCHMARK_ONCE ]

# Break constructor initializers before the colon and after the commas.
BreakConstructorInitializers: BeforeColon

# Add "// namespace <namespace>" comments on closing brace for a namespace
# Ignored for namespaces that qualify as a short namespace,
# see 'ShortNamespaceLines'
FixNamespaceComments: true

# Definition of how short a short namespace is, default 1
ShortNamespaceLines: 1

# When escaping newlines in a macro attach the '\' as far left as possible, e.g.
##define a     \
#   something; \
#   other;     \
#   thelastlineislong;
AlignEscapedNewlines: Left

# Avoids the addition of a space between an identifier and the
# initializer list in list-initialization.
SpaceBeforeCpp11BracedList: false