.clang-tidy

---
  # TODO(crbug.com/1282228): reenable google-readability-casting once it no
  # longer has as many false-positives.
  Checks:          '-*,
                    bugprone-argument-comment,
                    bugprone-assert-side-effect,
                    bugprone-dangling-handle,
                    bugprone-inaccurate-erase,
                    bugprone-string-constructor,
                    bugprone-string-integer-assignment,
                    bugprone-undefined-memory-manipulation,
                    bugprone-unused-raii,
                    bugprone-use-after-move,
                    google-build-explicit-make-pair,
                    google-explicit-constructor,
                    misc-misleading-identifier,
                    misc-homoglyph,
                    modernize-avoid-bind,
                    modernize-concat-nested-namespaces,
                    modernize-loop-convert,
                    modernize-make-shared,
                    modernize-make-unique,
                    modernize-redundant-void-arg,
                    modernize-replace-random-shuffle,
                    modernize-shrink-to-fit,
                    modernize-use-bool-literals,
                    modernize-use-default-member-init,
                    modernize-use-emplace,
                    modernize-use-equals-default,
                    modernize-use-equals-delete,
                    modernize-use-noexcept,
                    modernize-use-nullptr,
                    modernize-use-override,
                    modernize-use-transparent-functors,
                    readability-braces-around-statements,
                    readability-identifier-naming,
                    readability-implicit-bool-conversion,
                    readability-qualified-auto,
                    readability-redundant-member-init'
  CheckOptions:
    - key:          bugprone-assert-side-effect.AssertMacros
      value:        assert,DCHECK
    - key:          bugprone-dangling-handle.HandleClasses
      value:        ::std::basic_string_view;::std::span;::absl::string_view;::base::BasicStringPiece;::base::span
    - key:          bugprone-string-constructor.StringNames
      value:        ::std::basic_string;::std::basic_string_view;::base::BasicStringPiece;::absl::string_view
    - key:          modernize-use-default-member-init.UseAssignment
      value:        1
    # crbug.com/1342136, crbug.com/1343915: At times, this check makes
    # suggestions that break builds. Safe mode allows us to sidestep that.
    - key:          modernize-use-transparent-functors.SafeMode
      value:        1
    # This relaxes modernize-use-emplace in some cases; we might want to make it
    # more aggressive in the future. See discussion on
    # https://groups.google.com/a/chromium.org/g/cxx/c/noMMTNYiM0w .
    - key:          modernize-use-emplace.IgnoreImplicitConstructors
      value:        1
    # crbug.com/1402090: until we support C++20 everywhere, we shouldn't be
    # suggesting constructs that require C++20. Prefer base::Reversed.
    # TODO(crbug.com/1404958): remove these once C++20 is everywhere.
    - key:          modernize-loop-convert.MakeReverseRangeFunction
      value:        base::Reversed
    - key:          modernize-loop-convert.MakeReverseRangeHeader
      value:        base/containers/adapters.h
    - { key: readability-identifier-naming.ClassCase,           value: CamelCase  }
    - { key: readability-identifier-naming.StructCase,          value: CamelCase  }
    - { key: readability-identifier-naming.EnumCase,            value: CamelCase  }
    - { key: readability-identifier-naming.EnumConstantCase,    value: UPPER_CASE }
    - { key: readability-identifier-naming.NamespaceCase,       value: lower_case }
    - { key: readability-identifier-naming.ClassMemberCase,     value: lower_case }
    - { key: readability-identifier-naming.FunctionCase,        value: lower_case }
    - { key: readability-identifier-naming.VariableCase,        value: lower_case }
    - { key: readability-identifier-naming.MacroDefinitionCase, value: UPPER_CASE }
    - { key: readability-identifier-naming.GlobalConstantCase,  value: UPPER_CASE }
...