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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_PERFORMANCE_MOVECONSTARGCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_MOVECONSTARGCHECK_H11 12#include "../ClangTidyCheck.h"13#include "llvm/ADT/DenseSet.h"14 15namespace clang::tidy::performance {16 17/// Find casts of calculation results to bigger type. Typically from int to18///19/// The options are20///21/// - `CheckTriviallyCopyableMove`: Whether to check for trivially-copyable22// types as their objects are not moved but copied. Enabled by default.23// - `CheckMoveToConstRef`: Whether to check if a `std::move()` is passed24// as a const reference argument.25class MoveConstArgCheck : public ClangTidyCheck {26public:27 MoveConstArgCheck(StringRef Name, ClangTidyContext *Context)28 : ClangTidyCheck(Name, Context), CheckTriviallyCopyableMove(Options.get(29 "CheckTriviallyCopyableMove", true)),30 CheckMoveToConstRef(Options.get("CheckMoveToConstRef", true)) {}31 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {32 return LangOpts.CPlusPlus;33 }34 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;35 void registerMatchers(ast_matchers::MatchFinder *Finder) override;36 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;37 38private:39 const bool CheckTriviallyCopyableMove;40 const bool CheckMoveToConstRef;41 llvm::DenseSet<const CallExpr *> AlreadyCheckedMoves;42};43 44} // namespace clang::tidy::performance45 46#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_MOVECONSTARGCHECK_H47