Question

我有一个if语句，其中包含多个or个参数。为了便于阅读，我将它们垂直堆叠如下。

    if (health.flag_a || 
       health.flag_b ||
       health.flag_c ||
       health.flag_d ||
       health.flag_e ||
       health.flag_f ||
       health.flag_g ||
       health.flag_h ||
       health.flag_i ||
       health.flag_k) {
    do_something();
    return false;
}

clang-format将此转换为：

if (health.flag_a || health.flag_b || health.flag_c || health.flag_d || health.flag_e || health.flag_f || health.flag_g || health.flag_h ||
    health.flag_i || health.flag_k) {
    do_something();
    return false;
}

如果它们不适合一行，我希望clang-format像上面一样堆叠它们。我期望BinPackArguments这样做，但我没有运气。

这可以实现吗？

请参阅下面的.clang-format。

感谢您的帮助。

---
Language:        Cpp
# BasedOnStyle:  Google
AccessModifierOffset: -4
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: true
AlignConsecutiveDeclarations: true
AlignEscapedNewlinesLeft: false
AlignOperands:   true
AlignTrailingComments: true
AllowAllParametersOfDeclarationOnNextLine: true
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: Inline
AllowShortIfStatementsOnASingleLine: true
AllowShortLoopsOnASingleLine: true
AlwaysBreakAfterDefinitionReturnType: None
AlwaysBreakAfterReturnType: None
AlwaysBreakBeforeMultilineStrings: true
AlwaysBreakTemplateDeclarations: true
BinPackArguments: false
BinPackParameters: false
BraceWrapping:   
  AfterClass:      false
  AfterControlStatement: false
  AfterEnum:       false
  AfterFunction:   false
  AfterNamespace:  false
  AfterObjCDeclaration: false
  AfterStruct:     false
  AfterUnion:      false
  BeforeCatch:     false
  BeforeElse:      false
  IndentBraces:    false
BreakBeforeBinaryOperators: None
BreakBeforeBraces: Attach
BreakBeforeTernaryOperators: true
BreakConstructorInitializersBeforeComma: false
ColumnLimit:     145
CommentPragmas:  '^ IWYU pragma:'
ConstructorInitializerAllOnOneLineOrOnePerLine: true
ConstructorInitializerIndentWidth: 4
ContinuationIndentWidth: 4
Cpp11BracedListStyle: true
DerivePointerAlignment: true
DisableFormat:   false
ExperimentalAutoDetectBinPacking: false
ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
IncludeCategories: 
  - Regex:           '^<.*\.h>'
    Priority:        1
  - Regex:           '^<.*'
    Priority:        2
  - Regex:           '.*'
    Priority:        3
IndentCaseLabels: true
IndentWidth:     4
IndentWrappedFunctionNames: false
KeepEmptyLinesAtTheStartOfBlocks: false
MacroBlockBegin: ''
MacroBlockEnd:   ''
MaxEmptyLinesToKeep: 1
NamespaceIndentation: None
ObjCBlockIndentWidth: 2
ObjCSpaceAfterProperty: false
ObjCSpaceBeforeProtocolList: false
PenaltyBreakBeforeFirstCallParameter: 1
PenaltyBreakComment: 300
PenaltyBreakFirstLessLess: 120
PenaltyBreakString: 1000
PenaltyExcessCharacter: 1000000
PenaltyReturnTypeOnItsOwnLine: 200
PointerAlignment: Left
ReflowComments:  true
SortIncludes:    true
SpaceAfterCStyleCast: false
SpaceBeforeAssignmentOperators: true
SpaceBeforeParens: ControlStatements
SpaceInEmptyParentheses: false
SpacesBeforeTrailingComments: 2
SpacesInAngles:  false
SpacesInContainerLiterals: true
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
SpacesInSquareBrackets: false
Standard:        Auto
TabWidth:        4
UseTab:          ForIndentation
...

Answer 1

不直接，但您可以使用BreakBeforeBinaryOperators实现类似的功能。尝试将此值设置为NonAssignment。这会将||运算符放在之前的每个附加条件中，但不会在它们之后。

Answer 2

我发现的唯一解决方案是使用// clang-format off和// clang-format on注释对。例如

// clang-format off
if (health.flag_a || 
   health.flag_b ||
   health.flag_c ||
   health.flag_d ||
   health.flag_e ||
   health.flag_f ||
   health.flag_g ||
   health.flag_h ||
   health.flag_i ||
   health.flag_k) {
do_something();
return false;
}
// clang-format on

是的，这根本不是解决方案，但是至少可以防止clang-format重新格式化堆积的条件。

clang-format堆栈所有if语句参数，如果它们太长

2 个答案: