clang-tidy/performance/EnumSizeCheck.h

0001 //===--- EnumSizeCheck.h - clang-tidy ---------------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_ENUMSIZECHECK_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_ENUMSIZECHECK_H
0011
0012 #include "../ClangTidyCheck.h"
0013 #include <vector>
0014
0015 namespace clang::tidy::performance {
0016
0017 /// Finds `enum` type definitions that could use smaller integral type as a
0018 /// base.
0019 ///
0020 /// For the user-facing documentation see:
0021 /// http://clang.llvm.org/extra/clang-tidy/checks/performance/enum-size.html
0022 class EnumSizeCheck : public ClangTidyCheck {
0023 public:
0024   EnumSizeCheck(StringRef Name, ClangTidyContext *Context);
0025   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0026   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0027   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
0028   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override;
0029
0030 private:
0031   const std::vector<StringRef> EnumIgnoreList;
0032 };
0033
0034 } // namespace clang::tidy::performance
0035
0036 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_ENUMSIZECHECK_H