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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_USESCOPEDLOCKCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USESCOPEDLOCKCHECK_H11 12#include "../ClangTidyCheck.h"13#include "clang/AST/ASTTypeTraits.h"14#include "clang/AST/Stmt.h"15#include <optional>16 17namespace clang::tidy::modernize {18 19/// Finds uses of ``std::lock_guard`` and suggests replacing them with C++17's20/// alternative ``std::scoped_lock``.21///22/// For the user-facing documentation see:23/// https://clang.llvm.org/extra/clang-tidy/checks/modernize/use-scoped-lock.html24class UseScopedLockCheck : public ClangTidyCheck {25public:26 UseScopedLockCheck(StringRef Name, ClangTidyContext *Context);27 void registerMatchers(ast_matchers::MatchFinder *Finder) override;28 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;29 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;30 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {31 return LangOpts.CPlusPlus17;32 }33 std::optional<TraversalKind> getCheckTraversalKind() const override {34 return TK_IgnoreUnlessSpelledInSource;35 }36 37private:38 void diagOnSingleLock(const VarDecl *LockGuard,39 const ast_matchers::MatchFinder::MatchResult &Result);40 void diagOnMultipleLocks(41 const llvm::SmallVector<llvm::SmallVector<const VarDecl *>> &LockGroups,42 const ast_matchers::MatchFinder::MatchResult &Result);43 void diagOnSourceInfo(const TypeSourceInfo *LockGuardSourceInfo,44 const ast_matchers::MatchFinder::MatchResult &Result);45 void diagOnUsingDecl(const UsingDecl *UsingDecl,46 const ast_matchers::MatchFinder::MatchResult &Result);47 48 const bool WarnOnSingleLocks;49 const bool WarnOnUsingAndTypedef;50};51 52} // namespace clang::tidy::modernize53 54#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USESCOPEDLOCKCHECK_H55