| //===-- ReplaceAutoPtr.h ------------ std::auto_ptr replacement -*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief This file provides the declaration of the ReplaceAutoPtrTransform |
| /// class. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef CLANG_MODERNIZE_REPLACE_AUTO_PTR_H |
| #define CLANG_MODERNIZE_REPLACE_AUTO_PTR_H |
| |
| #include "Core/Transform.h" |
| #include "llvm/Support/Compiler.h" |
| |
| /// \brief Subclass of Transform that transforms the deprecated \c std::auto_ptr |
| /// into the C++11 \c std::unique_ptr. |
| /// |
| /// Note that both the \c std::auto_ptr type and the transfer of ownership are |
| /// transformed. \c std::auto_ptr provides two ways to transfer the ownership, |
| /// the copy-constructor and the assignment operator. Unlike most classes theses |
| /// operations do not 'copy' the resource but they 'steal' it. |
| /// \c std::unique_ptr uses move semantics instead, which makes the intent of |
| /// transferring the resource explicit. This difference between the two smart |
| /// pointers requires to wrap the copy-ctor and assign-operator with |
| /// \c std::move(). |
| /// |
| /// For example, given: |
| /// \code |
| /// std::auto_ptr<int> i, j; |
| /// i = j; |
| /// \endcode |
| /// the code is transformed to: |
| /// \code |
| /// std::unique_ptr<int> i, j; |
| /// i = std::move(j); |
| /// \endcode |
| class ReplaceAutoPtrTransform : public Transform { |
| public: |
| ReplaceAutoPtrTransform(const TransformOptions &Options) |
| : Transform("ReplaceAutoPtr", Options) {} |
| |
| /// \see Transform::run(). |
| virtual int apply(const clang::tooling::CompilationDatabase &Database, |
| const std::vector<std::string> &SourcePaths) override; |
| }; |
| |
| #endif // CLANG_MODERNIZE_REPLACE_AUTO_PTR_H |