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//===--- ForwardingReferenceOverloadCheck.h - clang-tidy---------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../ClangTidyCheck.h"
namespace clang {
namespace tidy {
namespace bugprone {
/// The checker looks for constructors that can act as copy or move constructors
/// through their forwarding reference parameters. If a non const lvalue
/// reference is passed to the constructor, the forwarding reference parameter
/// can be a perfect match while the const reference parameter of the copy
/// constructor can't. The forwarding reference constructor will be called,
/// which can lead to confusion.
/// For detailed description of this problem see: Scott Meyers, Effective Modern
/// C++ Design, item 26.
/// For the user-facing documentation see:
class ForwardingReferenceOverloadCheck : public ClangTidyCheck {
ForwardingReferenceOverloadCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context) {}
bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
return LangOpts.CPlusPlus11;
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
} // namespace bugprone
} // namespace tidy
} // namespace clang