1 //===--- Refactoring.h - Framework for clang refactoring tools --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Interfaces supporting refactorings that span multiple translation units.
11 // While single translation unit refactorings are supported via the Rewriter,
12 // when refactoring multiple translation units changes must be stored in a
13 // SourceManager independent form, duplicate changes need to be removed, and
14 // all changes must be applied at once at the end of the refactoring so that
15 // the code is always parseable.
17 //===----------------------------------------------------------------------===//
19 #ifndef LLVM_CLANG_TOOLING_REFACTORING_H
20 #define LLVM_CLANG_TOOLING_REFACTORING_H
22 #include "clang/Tooling/Core/Replacement.h"
23 #include "clang/Tooling/Tooling.h"
32 /// \brief A tool to run refactorings.
34 /// This is a refactoring specific version of \see ClangTool. FrontendActions
35 /// passed to run() and runAndSave() should add replacements to
36 /// getReplacements().
37 class RefactoringTool : public ClangTool {
39 /// \see ClangTool::ClangTool.
40 RefactoringTool(const CompilationDatabase &Compilations,
41 ArrayRef<std::string> SourcePaths,
42 std::shared_ptr<PCHContainerOperations> PCHContainerOps =
43 std::make_shared<PCHContainerOperations>());
45 /// \brief Returns the set of replacements to which replacements should
46 /// be added during the run of the tool.
47 Replacements &getReplacements();
49 /// \brief Call run(), apply all generated replacements, and immediately save
50 /// the results to disk.
52 /// \returns 0 upon success. Non-zero upon failure.
53 int runAndSave(FrontendActionFactory *ActionFactory);
55 /// \brief Apply all stored replacements to the given Rewriter.
57 /// Replacement applications happen independently of the success of other
60 /// \returns true if all replacements apply. false otherwise.
61 bool applyAllReplacements(Rewriter &Rewrite);
64 /// \brief Write all refactored files to disk.
65 int saveRewrittenFiles(Rewriter &Rewrite);
71 /// \brief Groups \p Replaces by the file path and applies each group of
72 /// Replacements on the related file in \p Rewriter. In addition to applying
73 /// given Replacements, this function also formats the changed code.
75 /// \pre Replacements must be conflict-free.
77 /// Replacement applications happen independently of the success of other
80 /// \param[in] Replaces Replacements to apply.
81 /// \param[in] Rewrite The `Rewritter` to apply replacements on.
82 /// \param[in] Style The style name used for reformatting. See ```getStyle``` in
83 /// "include/clang/Format/Format.h" for all possible style forms.
85 /// \returns true if all replacements applied and formatted. false otherwise.
86 bool formatAndApplyAllReplacements(const Replacements &Replaces,
87 Rewriter &Rewrite, StringRef Style = "file");
89 } // end namespace tooling
90 } // end namespace clang
92 #endif // LLVM_CLANG_TOOLING_REFACTORING_H