forked from OSchip/llvm-project
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
//===--- Refactoring.cpp - Framework for clang refactoring tools ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Implements tools to support refactorings.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Tooling/Refactoring.h"
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#include "clang/Basic/DiagnosticOptions.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Format/Format.h"
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#include "clang/Frontend/TextDiagnosticPrinter.h"
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#include "clang/Lex/Lexer.h"
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#include "clang/Rewrite/Core/Rewriter.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_os_ostream.h"
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namespace clang {
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namespace tooling {
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RefactoringTool::RefactoringTool(
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const CompilationDatabase &Compilations, ArrayRef<std::string> SourcePaths,
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std::shared_ptr<PCHContainerOperations> PCHContainerOps)
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: ClangTool(Compilations, SourcePaths, PCHContainerOps) {}
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std::map<std::string, Replacements> &RefactoringTool::getReplacements() {
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return FileToReplaces;
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}
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int RefactoringTool::runAndSave(FrontendActionFactory *ActionFactory) {
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if (int Result = run(ActionFactory)) {
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return Result;
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}
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LangOptions DefaultLangOptions;
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
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TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
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DiagnosticsEngine Diagnostics(
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IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
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&*DiagOpts, &DiagnosticPrinter, false);
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SourceManager Sources(Diagnostics, getFiles());
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Rewriter Rewrite(Sources, DefaultLangOptions);
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if (!applyAllReplacements(Rewrite)) {
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llvm::errs() << "Skipped some replacements.\n";
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}
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return saveRewrittenFiles(Rewrite);
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}
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bool RefactoringTool::applyAllReplacements(Rewriter &Rewrite) {
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bool Result = true;
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for (const auto &Entry : groupReplacementsByFile(
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Rewrite.getSourceMgr().getFileManager(), FileToReplaces))
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Result = tooling::applyAllReplacements(Entry.second, Rewrite) && Result;
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return Result;
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}
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int RefactoringTool::saveRewrittenFiles(Rewriter &Rewrite) {
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return Rewrite.overwriteChangedFiles() ? 1 : 0;
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}
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bool formatAndApplyAllReplacements(
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const std::map<std::string, Replacements> &FileToReplaces,
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Rewriter &Rewrite, StringRef Style) {
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SourceManager &SM = Rewrite.getSourceMgr();
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FileManager &Files = SM.getFileManager();
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bool Result = true;
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for (const auto &FileAndReplaces : groupReplacementsByFile(
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Rewrite.getSourceMgr().getFileManager(), FileToReplaces)) {
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const std::string &FilePath = FileAndReplaces.first;
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auto &CurReplaces = FileAndReplaces.second;
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const FileEntry *Entry = Files.getFile(FilePath);
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FileID ID = SM.getOrCreateFileID(Entry, SrcMgr::C_User);
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StringRef Code = SM.getBufferData(ID);
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auto CurStyle = format::getStyle(Style, FilePath, "LLVM");
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if (!CurStyle) {
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llvm::errs() << llvm::toString(CurStyle.takeError()) << "\n";
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return false;
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}
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auto NewReplacements =
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format::formatReplacements(Code, CurReplaces, *CurStyle);
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if (!NewReplacements) {
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llvm::errs() << llvm::toString(NewReplacements.takeError()) << "\n";
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return false;
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}
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Result = applyAllReplacements(*NewReplacements, Rewrite) && Result;
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}
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return Result;
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}
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} // end namespace tooling
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} // end namespace clang
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