1 //===--- UniqueptrResetReleaseCheck.h - clang-tidy --------------*- C++ -*-===//
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-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNIQUEPTRRESETRELEASECHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNIQUEPTRRESETRELEASECHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 #include "../utils/IncludeInserter.h"
14 
15 namespace clang {
16 namespace tidy {
17 namespace misc {
18 
19 /// Find and replace `unique_ptr::reset(release())` with `std::move()`.
20 ///
21 /// Example:
22 ///
23 /// \code
24 ///   std::unique_ptr<Foo> x, y;
25 ///   x.reset(y.release()); -> x = std::move(y);
26 /// \endcode
27 ///
28 /// If `y` is already rvalue, `std::move()` is not added.  `x` and `y` can also
29 /// be `std::unique_ptr<Foo>*`.
30 class UniqueptrResetReleaseCheck : public ClangTidyCheck {
31 public:
32   UniqueptrResetReleaseCheck(StringRef Name, ClangTidyContext *Context);
33 
isLanguageVersionSupported(const LangOptions & LangOpts)34   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
35     // Only register the matchers for C++11; the functionality currently does
36     // not
37     // provide any benefit to other languages, despite being benign.
38     return LangOpts.CPlusPlus11;
39   }
40   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
41                            Preprocessor *ModuleExpanderPP) override;
42   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
43   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
44   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
45 
46 private:
47   utils::IncludeInserter Inserter;
48 };
49 
50 } // namespace misc
51 } // namespace tidy
52 } // namespace clang
53 
54 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNIQUEPTRRESETRELEASECHECK_H
55