contrib/llvm/tools/clang/lib/Tooling/Refactoring.cpp

   1 //===--- Refactoring.cpp - Framework for clang refactoring tools ----------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //  Implements tools to support refactorings.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "clang/Basic/DiagnosticOptions.h"
  15 #include "clang/Basic/FileManager.h"
  16 #include "clang/Basic/SourceManager.h"
  17 #include "clang/Frontend/TextDiagnosticPrinter.h"
  18 #include "clang/Lex/Lexer.h"
  19 #include "clang/Rewrite/Core/Rewriter.h"
  20 #include "clang/Tooling/Refactoring.h"
  21 #include "llvm/Support/FileSystem.h"
  22 #include "llvm/Support/Path.h"
  23 #include "llvm/Support/raw_os_ostream.h"
  24
  25 namespace clang {
  26 namespace tooling {
  27
  28 RefactoringTool::RefactoringTool(
  29     const CompilationDatabase &Compilations, ArrayRef<std::string> SourcePaths,
  30     std::shared_ptr<PCHContainerOperations> PCHContainerOps)
  31     : ClangTool(Compilations, SourcePaths, PCHContainerOps) {}
  32
  33 Replacements &RefactoringTool::getReplacements() { return Replace; }
  34
  35 int RefactoringTool::runAndSave(FrontendActionFactory *ActionFactory) {
  36   if (int Result = run(ActionFactory)) {
  37     return Result;
  38   }
  39
  40   LangOptions DefaultLangOptions;
  41   IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
  42   TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
  43   DiagnosticsEngine Diagnostics(
  44       IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
  45       &*DiagOpts, &DiagnosticPrinter, false);
  46   SourceManager Sources(Diagnostics, getFiles());
  47   Rewriter Rewrite(Sources, DefaultLangOptions);
  48
  49   if (!applyAllReplacements(Rewrite)) {
  50     llvm::errs() << "Skipped some replacements.\n";
  51   }
  52
  53   return saveRewrittenFiles(Rewrite);
  54 }
  55
  56 bool RefactoringTool::applyAllReplacements(Rewriter &Rewrite) {
  57   return tooling::applyAllReplacements(Replace, Rewrite);
  58 }
  59
  60 int RefactoringTool::saveRewrittenFiles(Rewriter &Rewrite) {
  61   return Rewrite.overwriteChangedFiles() ? 1 : 0;
  62 }
  63
  64 } // end namespace tooling
  65 } // end namespace clang