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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_BUGPRONE_FORWARDINGREFERENCEOVERLOADCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_FORWARDINGREFERENCEOVERLOADCHECK_H11 12#include "../ClangTidyCheck.h"13 14namespace clang::tidy::bugprone {15 16/// The checker looks for constructors that can act as copy or move constructors17/// through their forwarding reference parameters. If a non const lvalue18/// reference is passed to the constructor, the forwarding reference parameter19/// can be a perfect match while the const reference parameter of the copy20/// constructor can't. The forwarding reference constructor will be called,21/// which can lead to confusion.22/// For detailed description of this problem see: Scott Meyers, Effective Modern23/// C++ Design, item 26.24///25/// For the user-facing documentation see:26/// https://clang.llvm.org/extra/clang-tidy/checks/bugprone/forwarding-reference-overload.html27class ForwardingReferenceOverloadCheck : public ClangTidyCheck {28public:29 ForwardingReferenceOverloadCheck(StringRef Name, ClangTidyContext *Context)30 : ClangTidyCheck(Name, Context) {}31 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {32 return LangOpts.CPlusPlus11;33 }34 void registerMatchers(ast_matchers::MatchFinder *Finder) override;35 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;36};37 38} // namespace clang::tidy::bugprone39 40#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_FORWARDINGREFERENCEOVERLOADCHECK_H41