clang-tools-extra/clang-tidy/performance/EnumSizeCheck.h

   1 //===--- EnumSizeCheck.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_PERFORMANCE_ENUMSIZECHECK_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_ENUMSIZECHECK_H
  11
  12 #include "../ClangTidyCheck.h"
  13 #include <vector>
  14
  15 namespace clang::tidy::performance {
  16
  17 /// Finds `enum` type definitions that could use smaller integral type as a
  18 /// base.
  19 ///
  20 /// For the user-facing documentation see:
  21 /// http://clang.llvm.org/extra/clang-tidy/checks/performance/enum-size.html
  22 class EnumSizeCheck : public ClangTidyCheck {
  23 public:
  24   EnumSizeCheck(StringRef Name, ClangTidyContext *Context);
  25   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  26   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  27   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  28   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override;
  29
  30 private:
  31   const std::vector<StringRef> EnumIgnoreList;
  32 };
  33
  34 } // namespace clang::tidy::performance
  35
  36 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_ENUMSIZECHECK_H