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1//===----------------------------------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USENODISCARDCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USENODISCARDCHECK_H11 12#include "../ClangTidyCheck.h"13 14namespace clang::tidy::modernize {15 16/// Add ``[[nodiscard]]`` to non-void const-member functions with no17/// arguments or pass-by-value or pass by const-reference arguments.18/// \code19/// bool empty() const;20/// bool empty(const Bar &) const;21/// bool empty(int bar) const;22/// \endcode23/// Is converted to:24/// \code25/// [[nodiscard]] bool empty() const;26/// [[nodiscard]] bool empty(const Bar &) const;27/// [[nodiscard]] bool empty(int bar) const;28/// \endcode29///30/// For the user-facing documentation see:31/// https://clang.llvm.org/extra/clang-tidy/checks/modernize/use-nodiscard.html32class UseNodiscardCheck : public ClangTidyCheck {33public:34 UseNodiscardCheck(StringRef Name, ClangTidyContext *Context);35 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override;36 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;37 void registerMatchers(ast_matchers::MatchFinder *Finder) override;38 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;39 40private:41 const StringRef NoDiscardMacro;42};43 44} // namespace clang::tidy::modernize45 46#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USENODISCARDCHECK_H47