| //===-- Core/ReplacementHandling.h ------------------------------*- 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 defines the ReplacementHandling class which abstracts |
| /// serialization and application of serialized replacements. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef CLANG_MODERNIZE_REPLACEMENTHANDLING_H |
| #define CLANG_MODERNIZE_REPLACEMENTHANDLING_H |
| |
| #include "Core/Transform.h" |
| #include "llvm/ADT/StringRef.h" |
| |
| class ReplacementHandling { |
| public: |
| |
| ReplacementHandling() : DoFormat(false) {} |
| |
| /// \brief Finds the path to the executable 'clang-apply-replacements'. |
| /// |
| /// The executable is searched for on the PATH. If not found, looks in the |
| /// same directory as the image used to start the current executable. |
| /// |
| /// \param[in] Argv0 argv[0] as passed to main(). |
| /// |
| /// \returns \li true if clang-apply-replacements was found. |
| /// \li false otherwise. |
| bool findClangApplyReplacements(const char *Argv0); |
| |
| /// \brief Set the name of the directory in which replacements will be |
| /// serialized. |
| /// |
| /// \param[in] Dir Destination directory name |
| void setDestinationDir(llvm::StringRef Dir) { DestinationDir = Dir; } |
| |
| /// \brief Create a new temporary directory to serialize replacements into. |
| /// |
| /// \returns The name of the directory createdy. |
| llvm::StringRef useTempDestinationDir(); |
| |
| /// \brief Enable clang-apply-replacements do code reformatting when applying |
| /// serialized replacements. |
| /// |
| /// \param[in] Style Value to pass to clang-apply-replacement's --style |
| /// option. |
| /// \param[in] StyleConfigDir If non-empty, value to pass to |
| /// clang-apply-replacement's --style-config option. |
| void enableFormatting(llvm::StringRef Style, |
| llvm::StringRef StyleConfigDir = ""); |
| |
| /// \brief Write all TranslationUnitReplacements stored in \c Replacements |
| /// to disk. |
| /// |
| /// \pre Destination directory must have been previously set by calling |
| /// setDestiantionDir() or useTempDestinationDir(). |
| /// \pre Destination dir must exist. |
| /// |
| /// \param[in] Replacements Container of replacements to serialize. |
| /// |
| /// \returns \li true if all replacements were serialized successfully to |
| /// disk. |
| /// \li false otherwise. |
| bool serializeReplacements(const TUReplacementsMap &Replacements); |
| |
| /// \brief Invoke clang-apply-replacements to apply all serialized |
| /// replacements stored in the destination directory. |
| /// |
| /// \pre Destination directory must have been previously set by calling |
| /// setDestiantionDir() or useTempDestinationDir(). |
| /// |
| /// \returns \li true if clang-apply-replacements was successfully launched |
| /// and successfully completed. |
| /// \li false otherwise. |
| bool applyReplacements(); |
| |
| /// \brief Generate a unique filename to store the replacements. |
| /// |
| /// Generates a unique filename in \c DestinationDir. The filename is generated |
| /// following this pattern: |
| /// |
| /// DestinationDir/Prefix_%%_%%_%%_%%_%%_%%.yaml |
| /// |
| /// where Prefix := llvm::sys::path::filename(MainSourceFile) and all '%' will |
| /// be replaced by a randomly chosen hex digit. |
| /// |
| /// \param[in] DestinationDir Directory the unique file should be placed in. |
| /// \param[in] MainSourceFile Full path to the source file. |
| /// \param[out] Result The resulting unique filename. |
| /// \param[out] Error If an error occurs a description of that error is |
| /// placed in this string. |
| /// |
| /// \returns \li true on success |
| /// \li false if a unique file name could not be created. |
| static bool generateReplacementsFileName(llvm::StringRef DestinationDir, |
| llvm::StringRef MainSourceFile, |
| llvm::SmallVectorImpl<char> &Result, |
| llvm::SmallVectorImpl<char> &Error); |
| |
| /// \brief Helper to create a temporary directory name. |
| /// |
| /// \post The directory named by the returned string exists. |
| /// |
| /// \returns A temp directory name. |
| static std::string generateTempDir(); |
| |
| private: |
| |
| std::string CARPath; |
| std::string DestinationDir; |
| bool DoFormat; |
| std::string FormatStyle; |
| std::string StyleConfigDir; |
| }; |
| |
| #endif // CLANG_MODERNIZE_REPLACEMENTHANDLING_H |