clang-tools-extra/clang-tidy/modernize/MinMaxUseInitializerListCheck.h

   1 //===--- MinMaxUseInitializerListCheck.h - clang-tidy -----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
  11
  12 #include "../ClangTidyCheck.h"
  13 #include "../utils/IncludeInserter.h"
  14
  15 namespace clang::tidy::modernize {
  16
  17 /// Replaces nested ``std::min`` and ``std::max`` calls with an initializer list
  18 /// where applicable.
  19 ///
  20 /// For example:
  21 ///
  22 /// \code
  23 ///   int a = std::max(std::max(i, j), k);
  24 /// \endcode
  25 ///
  26 /// This code is transformed to:
  27 ///
  28 /// \code
  29 ///   int a = std::max({i, j, k});
  30 /// \endcode
  31 class MinMaxUseInitializerListCheck : public ClangTidyCheck {
  32 public:
  33   MinMaxUseInitializerListCheck(StringRef Name, ClangTidyContext *Context);
  34
  35   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  36   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  37   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
  38                            Preprocessor *ModuleExpanderPP) override;
  39   void check(const ast_matchers::MatchFinder::MatchResult &Match) override;
  40
  41   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
  42     return LangOpts.CPlusPlus11;
  43   }
  44   std::optional<TraversalKind> getCheckTraversalKind() const override {
  45     return TK_IgnoreUnlessSpelledInSource;
  46   }
  47
  48 private:
  49   bool IgnoreNonTrivialTypes;
  50   std::uint64_t IgnoreTrivialTypesOfSizeAbove;
  51   utils::IncludeInserter Inserter;
  52 };
  53
  54 } // namespace clang::tidy::modernize
  55
  56 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H