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      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(const CompilationDatabase &Compilations,
     29                                  ArrayRef<std::string> SourcePaths)
     30   : ClangTool(Compilations, SourcePaths) {}
     31 
     32 Replacements &RefactoringTool::getReplacements() { return Replace; }
     33 
     34 int RefactoringTool::runAndSave(FrontendActionFactory *ActionFactory) {
     35   if (int Result = run(ActionFactory)) {
     36     return Result;
     37   }
     38 
     39   LangOptions DefaultLangOptions;
     40   IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
     41   TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
     42   DiagnosticsEngine Diagnostics(
     43       IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
     44       &*DiagOpts, &DiagnosticPrinter, false);
     45   SourceManager Sources(Diagnostics, getFiles());
     46   Rewriter Rewrite(Sources, DefaultLangOptions);
     47 
     48   if (!applyAllReplacements(Rewrite)) {
     49     llvm::errs() << "Skipped some replacements.\n";
     50   }
     51 
     52   return saveRewrittenFiles(Rewrite);
     53 }
     54 
     55 bool RefactoringTool::applyAllReplacements(Rewriter &Rewrite) {
     56   return tooling::applyAllReplacements(Replace, Rewrite);
     57 }
     58 
     59 int RefactoringTool::saveRewrittenFiles(Rewriter &Rewrite) {
     60   return Rewrite.overwriteChangedFiles() ? 1 : 0;
     61 }
     62 
     63 } // end namespace tooling
     64 } // end namespace clang
     65