.clang-tidy

Checks: '
  clang-diagnostic-*,
  clang-analyzer-*,
  readability-*,
  llvm-*,
  darwin-*,
  -readability-convert-member-functions-to-static,
'
CheckOptions:
  ########################################################################
  # LLVM
  ########################################################################
  - key: llvm-header-guard.HeaderFileExtensions
    value: "h"
  - key: llvm-namespace-comment
    value: "ShortNamespaceLines"
  ########################################################################
  # Darwin
  ########################################################################
  - key: darwin-avoid-spinlock
    value: true
  - key: darwin-dispatch-once-nonstatic
    value: true
  ########################################################################
  # Readability
  ########################################################################
  - key: readability-avoid-const-params-in-decls
    value: true
  - key: readability-braces-around-statements
    value: true
  - key: readability-const-return-type
    value: true
  - key: readability-container-contains
    value: true
  - key: readability-container-data-pointer
    value: true
  - key: readability-container-size-empty
    value: true
  - key: readability-delete-null-pointer
    value: true
  - key: readability-duplicate-include
    value: true
  - key: readability-else-after-return
    value: true # FIXME: Symmetry also improves readibility.
  ########################################################################
  # Readability - Function Cognitive Complexity Began
  ########################################################################
  - key: readability-function-cognitive-complexity.Threshold
    value: 25
  - key: readability-function-cognitive-complexity.DescribeBasicIncrements
    value: true
  - key: readability-function-cognitive-complexity.IgnoreMacros
    value: true
  ########################################################################
  # Readability - Function Cognitive Complexity Ended
  ########################################################################
  ########################################################################
  # Readability - Identifier Length Began
  ########################################################################
  - key: readability-identifier-length.MinimumVariableNameLength
    value: 1
  - key: readability-identifier-length.MinimumParameterNameLength
    value: 1
  - key: readability-identifier-length.MinimumLoopCounterNameLength
    value: 1
  - key: readability-identifier-length.MinimumExceptionNameLength
    value: 1
  ########################################################################
  # Readability - Identifier Length Ended
  ########################################################################
  ########################################################################
  # Readability - Identifier Naming Began
  ########################################################################
  - key: readability-identifier-naming
    value: CamelCase
  - key: readability-identifier-naming.AbstractClassCase
    value: CamelCase
  - key: readability-identifier-naming.ClassCase
    value: CamelCase
  - key: readability-identifier-naming.ClassConstantCase
    value: CamelCase
  - key: readability-identifier-naming.ClassMemberCase
    value: CamelCase
  - key: readability-identifier-naming.ClassMethodCase
    value: camelBack
  - key: readability-identifier-naming.ConstantCase
    value: CamelCase
  - key: readability-identifier-naming.ConstantMemberCase
    value: CamelCase
  - key: readability-identifier-naming.ConstantParameterCase
    value: CamelCase
  - key: readability-identifier-naming.ConstantPointerParameterCase
    value: CamelCase
  - key: readability-identifier-naming.ConstexprFunctionCase
    value: camelBack
  - key: readability-identifier-naming.ConstexprMethodCase
    value: camelBack
  - key: readability-identifier-naming.ConstexprVariableCase
    value: CamelCase
  - key: readability-identifier-naming.EnumCase
    value: CamelCase
  - key: readability-identifier-naming.EnumIgnoredRegexp
    value: "[A-Za-z0-9]+_t"
  - key: readability-identifier-naming.EnumConstantCase
    value: CamelCase
  - key: readability-identifier-naming.FunctionCase
    value: camelBack
  - key: readability-identifier-naming.FunctionIgnoredRegexp
    # This affects friend function despite there is public/protected/private
    # method case & ignored regexp.
    value: "simple_display|hash_value|.+_begin|.+_end|find_as"
  - key: readability-identifier-naming.GlobalConstantCase
    value: CamelCase
  - key: readability-identifier-naming.GlobalConstantPointerCase
    value: CamelCase
  - key: readability-identifier-naming.GlobalFunctionCase
    value: camelBack
  - key: readability-identifier-naming.GlobalFunctionIgnoredRegexp
    # Multi-line regex literal: double quote is required, `\` to break.
    value: "\
proto_implemented\
|report_prototype_implementation\
|report_assertion\
|simple_display\
|hash_value\
|make_tracer"
  - key: readability-identifier-naming.GlobalPointerCase
    value: CamelCase
  - key: readability-identifier-naming.GlobalVariableCase
    value: CamelCase
  - key: readability-identifier-naming.InlineNamespaceCase
    value: lower_case
  - key: readability-identifier-naming.LocalConstantCase
    value: CamelCase
  - key: readability-identifier-naming.LocalConstantPointerCase
    value: CamelCase
  - key: readability-identifier-naming.LocalPointerCase
    value: CamelCase
  - key: readability-identifier-naming.LocalVariableCase
    value: CamelCase
  - key: readability-identifier-naming.MacroDefinitionCase
    value: UPPER_CASE
  - key: readability-identifier-naming.MacroDefinitionPrefix
    value: W2N_
  - key: readability-identifier-naming.MacroDefinitionIgnoredRegexp
    # Multi-line regex literal: double quote is required, `\` to break.
    value: "\
((_)?w2n_[a-zA-Z0-9][a-zA-Z0-9_]+)\
|DECL\
|STMT\
|EXPR\
|TYPE\
|FIRST_(DECL|STMT|EXPR|TYPE)\
|LAST_(DECL|STMT|EXPR|TYPE)\
|(DECL|STMT|EXPR|TYPE)_RANGE\
|BUILTIN|BUILTIN_.+\
|ERROR|WARNING|NOTE|REMARK|FIXIT|DIAG|EDUCATIONAL_NOTES\
|HAS_TRIVIAL_DISPLAY\
|([A-Z]+_STATISTIC)"
  # readability-identifier-naming.MemberCase no longer works because we
  # defined public/private member's case separately
  # readability-identifier-naming.MethodCase no longer works because we
  # defined public/private method's case separately
  - key: readability-identifier-naming.NamespaceCase
    value: lower_case
  - key: readability-identifier-naming.NamespaceIgnoredRegexp
    value: 'Lowering|MachO'
  - key: readability-identifier-naming.ParameterCase
    value: CamelCase
  - key: readability-identifier-naming.ParameterIgnoredRegexp
  # os: simple_display(llvm::raw_ostream& os, const T& ss), output stream
  # ss: simple_display(llvm::raw_ostream& os, const T& ss), streamed subject
  # hs: llvm::hash_code hash_value(const T& hs), hashed subject
    value: '(os|ss|hs)'
  - key: readability-identifier-naming.ParameterPackCase
    value: CamelCase
  - key: readability-identifier-naming.PointerParameterCase
    value: CamelCase
  - key: readability-identifier-naming.PointerParameterIgnoredRegexp
  # ss: simple_display(llvm::raw_ostream& os, const T * ss), streamed subject
  # hs: llvm::hash_code hash_value(const T * hs), hashed subject
    value: '(ss|hs)'
  - key: readability-identifier-naming.PrivateMemberCase
    value: CamelCase
  - key: readability-identifier-naming.PrivateMethodCase
    value: camelBack
  - key: readability-identifier-naming.privateMethodIgnoredRegexp
    value: "simple_display|hash_value|.+_begin|.+_end|find_as"
  - key: readability-identifier-naming.ProtectedMemberCase
    value: CamelCase
  - key: readability-identifier-naming.ProtectedMethodCase
    value: camelBack
  - key: readability-identifier-naming.ProtectedMethodIgnoredRegexp
    value: "simple_display|hash_value|.+_begin|.+_end|find_as"
  - key: readability-identifier-naming.PublicMemberCase
    value: CamelCase
  - key: readability-identifier-naming.PublicMethodCase
    value: camelBack
  - key: readability-identifier-naming.PublicMethodIgnoredRegexp
    value: "simple_display|hash_value|.+_begin|.+_end|find_as"
  - key: readability-identifier-naming.ScopedEnumConstantCase
    value: CamelCase
  - key: readability-identifier-naming.ScopedEnumConstantIgnoredRegexp
    value: '(First|Last)_[A-Za-z0-9]+'
  - key: readability-identifier-naming.StaticConstantCase
    value: CamelCase
  - key: readability-identifier-naming.StaticVariableCase
    value: CamelCase
  - key: readability-identifier-naming.StructCase
    value: CamelCase
  - key: readability-identifier-naming.TemplateParameterCase
    value: CamelCase
  - key: readability-identifier-naming.TemplateTemplateParameterCase
    value: CamelCase
  - key: readability-identifier-naming.TypeAliasCase
    value: CamelCase
  - key: readability-identifier-naming.TypeAliasIgnoredRegexp
    # Multi-line regex literal: double quote is required, `\` to break.
    value: "\
.+_iterator\
|[A-Za-z0-9]+_t"
  - key: readability-identifier-naming.TypedefCase
    value: CamelCase
  - key: readability-identifier-naming.TypeTemplateParameterCase
    value: CamelCase
  - key: readability-identifier-naming.UnionCase
    value: CamelCase
  - key: readability-identifier-naming.ValueTemplateParameterCase
    value: CamelCase
  - key: readability-identifier-naming.VariableCase
    value: CamelCase
  - key: readability-identifier-naming.VirtualMethodCase
    value: camelBack
  ########################################################################
  # Readability - Identifier Naming Ended
  ########################################################################
  - key: readability-implicit-bool-conversion
    value: true
  - key: readability-inconsistent-declaration-parameter-name
    value: true
  - key: readability-inconsistent-declaration-parameter-name
    value: true
  - key: readability-isolate-declaration
    value: true
  - key: readability-magic-numbers
    value: true
  - key: readability-magic-numbers
    value: true
  - key: readability-make-member-function-const
    value: true
  - key: readability-misleading-indentation
    value: true
  - key: readability-misplaced-array-index
    value: true
  - key: readability-named-parameter
    value: true
  - key: readability-named-parameter
    value: true
  - key: readability-non-const-parameter
    value: true
  - key: readability-qualified-auto
    value: true
  - key: readability-redundant-access-specifiers
    value: false
  - key: readability-redundant-control-flow
    value: true
  - key: readability-redundant-declaration
    value: true
  - key: readability-redundant-function-ptr-dereference
    value: true
  - key: readability-redundant-member-init
    value: true
  - key: readability-redundant-preprocessor
    value: true
  - key: readability-redundant-smartptr-get
    value: true
  - key: readability-redundant-string-cstr
    value: true
  - key: readability-redundant-string-init
    value: true
  - key: readability-redundant-string-init.StringNames
    value: ::std::basic_string;::std::basic_string_view,::llvm::StringRef
  - key: readability-simplify-boolean-expr
    value: true
  - key: readability-simplify-boolean-expr.SimplifyDeMorgan
    value: false
  - key: readability-simplify-subscript-expr
    value: true
  - key: readability-simplify-subscript-expr.Types
    value: '
    ::std::basic_string;
    ::std::basic_string_view;
    ::std::vector;
    ::std::array;
    ::llvm::ArrayRef;
    ::llvm::MutableArrayRef;
    '
  - key: readability-static-accessed-through-instance
    value: true
  - key: readability-static-definition-in-anonymous-namespace
    value: true
  - key: readability-string-compare
    value: true
  - key: readability-suspicious-call-argument
    value: false
  - key: readability-uniqueptr-delete-release
    value: true
  - key: readability-uppercase-literal-suffix
    value: true
  - key: readability-use-anyofallof
    value: true