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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_REPLACEAUTOPTRCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_REPLACEAUTOPTRCHECK_H11 12#include "../ClangTidyCheck.h"13#include "../utils/IncludeInserter.h"14 15namespace clang::tidy::modernize {16 17/// Transforms the deprecated `std::auto_ptr` into the C++11 `std::unique_ptr`.18///19/// Note that both the `std::auto_ptr` type and the transfer of ownership are20/// transformed. `std::auto_ptr` provides two ways to transfer the ownership,21/// the copy-constructor and the assignment operator. Unlike most classes these22/// operations do not 'copy' the resource but they 'steal' it.23/// `std::unique_ptr` uses move semantics instead, which makes the intent of24/// transferring the resource explicit. This difference between the two smart25/// pointers requires wrapping the copy-ctor and assign-operator with26/// `std::move()`.27///28/// For example, given:29///30/// \code31/// std::auto_ptr<int> i, j;32/// i = j;33/// \endcode34///35/// This code is transformed to:36///37/// \code38/// std::unique_ptr<in> i, j;39/// i = std::move(j);40/// \endcode41class ReplaceAutoPtrCheck : public ClangTidyCheck {42public:43 ReplaceAutoPtrCheck(StringRef Name, ClangTidyContext *Context);44 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {45 return LangOpts.CPlusPlus11;46 }47 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;48 void registerMatchers(ast_matchers::MatchFinder *Finder) override;49 void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,50 Preprocessor *ModuleExpanderPP) override;51 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;52 53private:54 utils::IncludeInserter Inserter;55};56 57} // namespace clang::tidy::modernize58 59#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_REPLACEAUTOPTRCHECK_H60