================ @@ -0,0 +1,60 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USETOUNDERLYINGCHECK_H +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USETOUNDERLYINGCHECK_H + +#include "../ClangTidyCheck.h" +#include "../utils/IncludeInserter.h" +#include <optional> + +namespace clang::tidy::modernize { + +/// Finds casts from a scoped enumeration to its underlying integer type and +/// replaces them with a call to ``std::to_underlying`` (C++23). +/// +/// For the user-facing documentation see: +/// https://clang.llvm.org/extra/clang-tidy/checks/modernize/use-to-underlying.html +class UseToUnderlyingCheck : public ClangTidyCheck { +public: + /// How to treat an imprecise cast, i.e. a cast whose destination type is an + /// integer type other than the enumeration's underlying type. + enum class ImpreciseCastsKind { + /// Do not diagnose imprecise casts. + Ignore, + /// Diagnose imprecise casts but do not offer a fix-it. + Warn, + /// Wrap the operand in a call to the replacement function, preserving the + /// original destination type. + PreserveType, + /// Replace the whole cast with a call to the replacement function, changing + /// the resulting type to the underlying type. + UseUnderlyingType, + }; + + UseToUnderlyingCheck(StringRef Name, ClangTidyContext *Context); + bool isLanguageVersionSupported(const LangOptions &LangOpts) const override; + void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP, + Preprocessor *ModuleExpanderPP) override; + void storeOptions(ClangTidyOptions::OptionMap &Opts) override; + void registerMatchers(ast_matchers::MatchFinder *Finder) override; + void check(const ast_matchers::MatchFinder::MatchResult &Result) override; + std::optional<TraversalKind> getCheckTraversalKind() const override { + return TK_IgnoreUnlessSpelledInSource; + } + +private: + const ImpreciseCastsKind ImpreciseCasts; + const StringRef ReplacementFunction; + utils::IncludeInserter IncludeInserter; + std::optional<StringRef> MaybeHeaderToInclude; ---------------- zwuis wrote:
Can we use empty `StringRef` to indicate not prividing `#include` in fixit? https://github.com/llvm/llvm-project/pull/210459 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
