| //===--- ARCMT.cpp - Migration to ARC mode --------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Internals.h" |
| #include "clang/ARCMigrate/ARCMT.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/Basic/DiagnosticCategories.h" |
| #include "clang/Frontend/ASTUnit.h" |
| #include "clang/Frontend/CompilerInstance.h" |
| #include "clang/Frontend/FrontendAction.h" |
| #include "clang/Frontend/TextDiagnosticPrinter.h" |
| #include "clang/Frontend/Utils.h" |
| #include "clang/Lex/Preprocessor.h" |
| #include "clang/Lex/PreprocessorOptions.h" |
| #include "clang/Rewrite/Core/Rewriter.h" |
| #include "clang/Sema/SemaDiagnostic.h" |
| #include "clang/Serialization/ASTReader.h" |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include <utility> |
| using namespace clang; |
| using namespace arcmt; |
| |
| bool CapturedDiagList::clearDiagnostic(ArrayRef<unsigned> IDs, |
| SourceRange range) { |
| if (range.isInvalid()) |
| return false; |
| |
| bool cleared = false; |
| ListTy::iterator I = List.begin(); |
| while (I != List.end()) { |
| FullSourceLoc diagLoc = I->getLocation(); |
| if ((IDs.empty() || // empty means clear all diagnostics in the range. |
| llvm::is_contained(IDs, I->getID())) && |
| !diagLoc.isBeforeInTranslationUnitThan(range.getBegin()) && |
| (diagLoc == range.getEnd() || |
| diagLoc.isBeforeInTranslationUnitThan(range.getEnd()))) { |
| cleared = true; |
| ListTy::iterator eraseS = I++; |
| if (eraseS->getLevel() != DiagnosticsEngine::Note) |
| while (I != List.end() && I->getLevel() == DiagnosticsEngine::Note) |
| ++I; |
| // Clear the diagnostic and any notes following it. |
| I = List.erase(eraseS, I); |
| continue; |
| } |
| |
| ++I; |
| } |
| |
| return cleared; |
| } |
| |
| bool CapturedDiagList::hasDiagnostic(ArrayRef<unsigned> IDs, |
| SourceRange range) const { |
| if (range.isInvalid()) |
| return false; |
| |
| ListTy::const_iterator I = List.begin(); |
| while (I != List.end()) { |
| FullSourceLoc diagLoc = I->getLocation(); |
| if ((IDs.empty() || // empty means any diagnostic in the range. |
| llvm::is_contained(IDs, I->getID())) && |
| !diagLoc.isBeforeInTranslationUnitThan(range.getBegin()) && |
| (diagLoc == range.getEnd() || |
| diagLoc.isBeforeInTranslationUnitThan(range.getEnd()))) { |
| return true; |
| } |
| |
| ++I; |
| } |
| |
| return false; |
| } |
| |
| void CapturedDiagList::reportDiagnostics(DiagnosticsEngine &Diags) const { |
| for (ListTy::const_iterator I = List.begin(), E = List.end(); I != E; ++I) |
| Diags.Report(*I); |
| } |
| |
| bool CapturedDiagList::hasErrors() const { |
| for (ListTy::const_iterator I = List.begin(), E = List.end(); I != E; ++I) |
| if (I->getLevel() >= DiagnosticsEngine::Error) |
| return true; |
| |
| return false; |
| } |
| |
| namespace { |
| |
| class CaptureDiagnosticConsumer : public DiagnosticConsumer { |
| DiagnosticsEngine &Diags; |
| DiagnosticConsumer &DiagClient; |
| CapturedDiagList &CapturedDiags; |
| bool HasBegunSourceFile; |
| public: |
| CaptureDiagnosticConsumer(DiagnosticsEngine &diags, |
| DiagnosticConsumer &client, |
| CapturedDiagList &capturedDiags) |
| : Diags(diags), DiagClient(client), CapturedDiags(capturedDiags), |
| HasBegunSourceFile(false) { } |
| |
| void BeginSourceFile(const LangOptions &Opts, |
| const Preprocessor *PP) override { |
| // Pass BeginSourceFile message onto DiagClient on first call. |
| // The corresponding EndSourceFile call will be made from an |
| // explicit call to FinishCapture. |
| if (!HasBegunSourceFile) { |
| DiagClient.BeginSourceFile(Opts, PP); |
| HasBegunSourceFile = true; |
| } |
| } |
| |
| void FinishCapture() { |
| // Call EndSourceFile on DiagClient on completion of capture to |
| // enable VerifyDiagnosticConsumer to check diagnostics *after* |
| // it has received the diagnostic list. |
| if (HasBegunSourceFile) { |
| DiagClient.EndSourceFile(); |
| HasBegunSourceFile = false; |
| } |
| } |
| |
| ~CaptureDiagnosticConsumer() override { |
| assert(!HasBegunSourceFile && "FinishCapture not called!"); |
| } |
| |
| void HandleDiagnostic(DiagnosticsEngine::Level level, |
| const Diagnostic &Info) override { |
| if (DiagnosticIDs::isARCDiagnostic(Info.getID()) || |
| level >= DiagnosticsEngine::Error || level == DiagnosticsEngine::Note) { |
| if (Info.getLocation().isValid()) |
| CapturedDiags.push_back(StoredDiagnostic(level, Info)); |
| return; |
| } |
| |
| // Non-ARC warnings are ignored. |
| Diags.setLastDiagnosticIgnored(true); |
| } |
| }; |
| |
| } // end anonymous namespace |
| |
| static bool HasARCRuntime(CompilerInvocation &origCI) { |
| // This duplicates some functionality from Darwin::AddDeploymentTarget |
| // but this function is well defined, so keep it decoupled from the driver |
| // and avoid unrelated complications. |
| llvm::Triple triple(origCI.getTargetOpts().Triple); |
| |
| if (triple.isiOS()) |
| return triple.getOSMajorVersion() >= 5; |
| |
| if (triple.isWatchOS()) |
| return true; |
| |
| if (triple.getOS() == llvm::Triple::Darwin) |
| return triple.getOSMajorVersion() >= 11; |
| |
| if (triple.getOS() == llvm::Triple::MacOSX) { |
| unsigned Major, Minor, Micro; |
| triple.getOSVersion(Major, Minor, Micro); |
| return Major > 10 || (Major == 10 && Minor >= 7); |
| } |
| |
| return false; |
| } |
| |
| static CompilerInvocation * |
| createInvocationForMigration(CompilerInvocation &origCI, |
| const PCHContainerReader &PCHContainerRdr) { |
| std::unique_ptr<CompilerInvocation> CInvok; |
| CInvok.reset(new CompilerInvocation(origCI)); |
| PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts(); |
| if (!PPOpts.ImplicitPCHInclude.empty()) { |
| // We can't use a PCH because it was likely built in non-ARC mode and we |
| // want to parse in ARC. Include the original header. |
| FileManager FileMgr(origCI.getFileSystemOpts()); |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(), |
| new IgnoringDiagConsumer())); |
| std::string OriginalFile = ASTReader::getOriginalSourceFile( |
| PPOpts.ImplicitPCHInclude, FileMgr, PCHContainerRdr, *Diags); |
| if (!OriginalFile.empty()) |
| PPOpts.Includes.insert(PPOpts.Includes.begin(), OriginalFile); |
| PPOpts.ImplicitPCHInclude.clear(); |
| } |
| std::string define = std::string(getARCMTMacroName()); |
| define += '='; |
| CInvok->getPreprocessorOpts().addMacroDef(define); |
| CInvok->getLangOpts()->ObjCAutoRefCount = true; |
| CInvok->getLangOpts()->setGC(LangOptions::NonGC); |
| CInvok->getDiagnosticOpts().ErrorLimit = 0; |
| CInvok->getDiagnosticOpts().PedanticErrors = 0; |
| |
| // Ignore -Werror flags when migrating. |
| std::vector<std::string> WarnOpts; |
| for (std::vector<std::string>::iterator |
| I = CInvok->getDiagnosticOpts().Warnings.begin(), |
| E = CInvok->getDiagnosticOpts().Warnings.end(); I != E; ++I) { |
| if (!StringRef(*I).startswith("error")) |
| WarnOpts.push_back(*I); |
| } |
| WarnOpts.push_back("error=arc-unsafe-retained-assign"); |
| CInvok->getDiagnosticOpts().Warnings = std::move(WarnOpts); |
| |
| CInvok->getLangOpts()->ObjCWeakRuntime = HasARCRuntime(origCI); |
| CInvok->getLangOpts()->ObjCWeak = CInvok->getLangOpts()->ObjCWeakRuntime; |
| |
| return CInvok.release(); |
| } |
| |
| static void emitPremigrationErrors(const CapturedDiagList &arcDiags, |
| DiagnosticOptions *diagOpts, |
| Preprocessor &PP) { |
| TextDiagnosticPrinter printer(llvm::errs(), diagOpts); |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, diagOpts, &printer, |
| /*ShouldOwnClient=*/false)); |
| Diags->setSourceManager(&PP.getSourceManager()); |
| |
| printer.BeginSourceFile(PP.getLangOpts(), &PP); |
| arcDiags.reportDiagnostics(*Diags); |
| printer.EndSourceFile(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // checkForManualIssues. |
| //===----------------------------------------------------------------------===// |
| |
| bool arcmt::checkForManualIssues( |
| CompilerInvocation &origCI, const FrontendInputFile &Input, |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
| DiagnosticConsumer *DiagClient, bool emitPremigrationARCErrors, |
| StringRef plistOut) { |
| if (!origCI.getLangOpts()->ObjC) |
| return false; |
| |
| LangOptions::GCMode OrigGCMode = origCI.getLangOpts()->getGC(); |
| bool NoNSAllocReallocError = origCI.getMigratorOpts().NoNSAllocReallocError; |
| bool NoFinalizeRemoval = origCI.getMigratorOpts().NoFinalizeRemoval; |
| |
| std::vector<TransformFn> transforms = arcmt::getAllTransformations(OrigGCMode, |
| NoFinalizeRemoval); |
| assert(!transforms.empty()); |
| |
| std::unique_ptr<CompilerInvocation> CInvok; |
| CInvok.reset( |
| createInvocationForMigration(origCI, PCHContainerOps->getRawReader())); |
| CInvok->getFrontendOpts().Inputs.clear(); |
| CInvok->getFrontendOpts().Inputs.push_back(Input); |
| |
| CapturedDiagList capturedDiags; |
| |
| assert(DiagClient); |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(), |
| DiagClient, /*ShouldOwnClient=*/false)); |
| |
| // Filter of all diagnostics. |
| CaptureDiagnosticConsumer errRec(*Diags, *DiagClient, capturedDiags); |
| Diags->setClient(&errRec, /*ShouldOwnClient=*/false); |
| |
| std::unique_ptr<ASTUnit> Unit(ASTUnit::LoadFromCompilerInvocationAction( |
| std::move(CInvok), PCHContainerOps, Diags)); |
| if (!Unit) { |
| errRec.FinishCapture(); |
| return true; |
| } |
| |
| // Don't filter diagnostics anymore. |
| Diags->setClient(DiagClient, /*ShouldOwnClient=*/false); |
| |
| ASTContext &Ctx = Unit->getASTContext(); |
| |
| if (Diags->hasFatalErrorOccurred()) { |
| Diags->Reset(); |
| DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor()); |
| capturedDiags.reportDiagnostics(*Diags); |
| DiagClient->EndSourceFile(); |
| errRec.FinishCapture(); |
| return true; |
| } |
| |
| if (emitPremigrationARCErrors) |
| emitPremigrationErrors(capturedDiags, &origCI.getDiagnosticOpts(), |
| Unit->getPreprocessor()); |
| if (!plistOut.empty()) { |
| SmallVector<StoredDiagnostic, 8> arcDiags; |
| for (CapturedDiagList::iterator |
| I = capturedDiags.begin(), E = capturedDiags.end(); I != E; ++I) |
| arcDiags.push_back(*I); |
| writeARCDiagsToPlist(std::string(plistOut), arcDiags, |
| Ctx.getSourceManager(), Ctx.getLangOpts()); |
| } |
| |
| // After parsing of source files ended, we want to reuse the |
| // diagnostics objects to emit further diagnostics. |
| // We call BeginSourceFile because DiagnosticConsumer requires that |
| // diagnostics with source range information are emitted only in between |
| // BeginSourceFile() and EndSourceFile(). |
| DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor()); |
| |
| // No macros will be added since we are just checking and we won't modify |
| // source code. |
| std::vector<SourceLocation> ARCMTMacroLocs; |
| |
| TransformActions testAct(*Diags, capturedDiags, Ctx, Unit->getPreprocessor()); |
| MigrationPass pass(Ctx, OrigGCMode, Unit->getSema(), testAct, capturedDiags, |
| ARCMTMacroLocs); |
| pass.setNoFinalizeRemoval(NoFinalizeRemoval); |
| if (!NoNSAllocReallocError) |
| Diags->setSeverity(diag::warn_arcmt_nsalloc_realloc, diag::Severity::Error, |
| SourceLocation()); |
| |
| for (unsigned i=0, e = transforms.size(); i != e; ++i) |
| transforms[i](pass); |
| |
| capturedDiags.reportDiagnostics(*Diags); |
| |
| DiagClient->EndSourceFile(); |
| errRec.FinishCapture(); |
| |
| return capturedDiags.hasErrors() || testAct.hasReportedErrors(); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // applyTransformations. |
| //===----------------------------------------------------------------------===// |
| |
| static bool |
| applyTransforms(CompilerInvocation &origCI, const FrontendInputFile &Input, |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
| DiagnosticConsumer *DiagClient, StringRef outputDir, |
| bool emitPremigrationARCErrors, StringRef plistOut) { |
| if (!origCI.getLangOpts()->ObjC) |
| return false; |
| |
| LangOptions::GCMode OrigGCMode = origCI.getLangOpts()->getGC(); |
| |
| // Make sure checking is successful first. |
| CompilerInvocation CInvokForCheck(origCI); |
| if (arcmt::checkForManualIssues(CInvokForCheck, Input, PCHContainerOps, |
| DiagClient, emitPremigrationARCErrors, |
| plistOut)) |
| return true; |
| |
| CompilerInvocation CInvok(origCI); |
| CInvok.getFrontendOpts().Inputs.clear(); |
| CInvok.getFrontendOpts().Inputs.push_back(Input); |
| |
| MigrationProcess migration(CInvok, PCHContainerOps, DiagClient, outputDir); |
| bool NoFinalizeRemoval = origCI.getMigratorOpts().NoFinalizeRemoval; |
| |
| std::vector<TransformFn> transforms = arcmt::getAllTransformations(OrigGCMode, |
| NoFinalizeRemoval); |
| assert(!transforms.empty()); |
| |
| for (unsigned i=0, e = transforms.size(); i != e; ++i) { |
| bool err = migration.applyTransform(transforms[i]); |
| if (err) return true; |
| } |
| |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, &origCI.getDiagnosticOpts(), |
| DiagClient, /*ShouldOwnClient=*/false)); |
| |
| if (outputDir.empty()) { |
| origCI.getLangOpts()->ObjCAutoRefCount = true; |
| return migration.getRemapper().overwriteOriginal(*Diags); |
| } else { |
| return migration.getRemapper().flushToDisk(outputDir, *Diags); |
| } |
| } |
| |
| bool arcmt::applyTransformations( |
| CompilerInvocation &origCI, const FrontendInputFile &Input, |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
| DiagnosticConsumer *DiagClient) { |
| return applyTransforms(origCI, Input, PCHContainerOps, DiagClient, |
| StringRef(), false, StringRef()); |
| } |
| |
| bool arcmt::migrateWithTemporaryFiles( |
| CompilerInvocation &origCI, const FrontendInputFile &Input, |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
| DiagnosticConsumer *DiagClient, StringRef outputDir, |
| bool emitPremigrationARCErrors, StringRef plistOut) { |
| assert(!outputDir.empty() && "Expected output directory path"); |
| return applyTransforms(origCI, Input, PCHContainerOps, DiagClient, outputDir, |
| emitPremigrationARCErrors, plistOut); |
| } |
| |
| bool arcmt::getFileRemappings(std::vector<std::pair<std::string,std::string> > & |
| remap, |
| StringRef outputDir, |
| DiagnosticConsumer *DiagClient) { |
| assert(!outputDir.empty()); |
| |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, new DiagnosticOptions, |
| DiagClient, /*ShouldOwnClient=*/false)); |
| |
| FileRemapper remapper; |
| bool err = remapper.initFromDisk(outputDir, *Diags, |
| /*ignoreIfFilesChanged=*/true); |
| if (err) |
| return true; |
| |
| remapper.forEachMapping( |
| [&](StringRef From, StringRef To) { |
| remap.push_back(std::make_pair(From.str(), To.str())); |
| }, |
| [](StringRef, const llvm::MemoryBufferRef &) {}); |
| |
| return false; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // CollectTransformActions. |
| //===----------------------------------------------------------------------===// |
| |
| namespace { |
| |
| class ARCMTMacroTrackerPPCallbacks : public PPCallbacks { |
| std::vector<SourceLocation> &ARCMTMacroLocs; |
| |
| public: |
| ARCMTMacroTrackerPPCallbacks(std::vector<SourceLocation> &ARCMTMacroLocs) |
| : ARCMTMacroLocs(ARCMTMacroLocs) { } |
| |
| void MacroExpands(const Token &MacroNameTok, const MacroDefinition &MD, |
| SourceRange Range, const MacroArgs *Args) override { |
| if (MacroNameTok.getIdentifierInfo()->getName() == getARCMTMacroName()) |
| ARCMTMacroLocs.push_back(MacroNameTok.getLocation()); |
| } |
| }; |
| |
| class ARCMTMacroTrackerAction : public ASTFrontendAction { |
| std::vector<SourceLocation> &ARCMTMacroLocs; |
| |
| public: |
| ARCMTMacroTrackerAction(std::vector<SourceLocation> &ARCMTMacroLocs) |
| : ARCMTMacroLocs(ARCMTMacroLocs) { } |
| |
| std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI, |
| StringRef InFile) override { |
| CI.getPreprocessor().addPPCallbacks( |
| std::make_unique<ARCMTMacroTrackerPPCallbacks>(ARCMTMacroLocs)); |
| return std::make_unique<ASTConsumer>(); |
| } |
| }; |
| |
| class RewritesApplicator : public TransformActions::RewriteReceiver { |
| Rewriter &rewriter; |
| MigrationProcess::RewriteListener *Listener; |
| |
| public: |
| RewritesApplicator(Rewriter &rewriter, ASTContext &ctx, |
| MigrationProcess::RewriteListener *listener) |
| : rewriter(rewriter), Listener(listener) { |
| if (Listener) |
| Listener->start(ctx); |
| } |
| ~RewritesApplicator() override { |
| if (Listener) |
| Listener->finish(); |
| } |
| |
| void insert(SourceLocation loc, StringRef text) override { |
| bool err = rewriter.InsertText(loc, text, /*InsertAfter=*/true, |
| /*indentNewLines=*/true); |
| if (!err && Listener) |
| Listener->insert(loc, text); |
| } |
| |
| void remove(CharSourceRange range) override { |
| Rewriter::RewriteOptions removeOpts; |
| removeOpts.IncludeInsertsAtBeginOfRange = false; |
| removeOpts.IncludeInsertsAtEndOfRange = false; |
| removeOpts.RemoveLineIfEmpty = true; |
| |
| bool err = rewriter.RemoveText(range, removeOpts); |
| if (!err && Listener) |
| Listener->remove(range); |
| } |
| |
| void increaseIndentation(CharSourceRange range, |
| SourceLocation parentIndent) override { |
| rewriter.IncreaseIndentation(range, parentIndent); |
| } |
| }; |
| |
| } // end anonymous namespace. |
| |
| /// Anchor for VTable. |
| MigrationProcess::RewriteListener::~RewriteListener() { } |
| |
| MigrationProcess::MigrationProcess( |
| const CompilerInvocation &CI, |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps, |
| DiagnosticConsumer *diagClient, StringRef outputDir) |
| : OrigCI(CI), PCHContainerOps(std::move(PCHContainerOps)), |
| DiagClient(diagClient), HadARCErrors(false) { |
| if (!outputDir.empty()) { |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, &CI.getDiagnosticOpts(), |
| DiagClient, /*ShouldOwnClient=*/false)); |
| Remapper.initFromDisk(outputDir, *Diags, /*ignoreIfFilesChanged=*/true); |
| } |
| } |
| |
| bool MigrationProcess::applyTransform(TransformFn trans, |
| RewriteListener *listener) { |
| std::unique_ptr<CompilerInvocation> CInvok; |
| CInvok.reset( |
| createInvocationForMigration(OrigCI, PCHContainerOps->getRawReader())); |
| CInvok->getDiagnosticOpts().IgnoreWarnings = true; |
| |
| Remapper.applyMappings(CInvok->getPreprocessorOpts()); |
| |
| CapturedDiagList capturedDiags; |
| std::vector<SourceLocation> ARCMTMacroLocs; |
| |
| assert(DiagClient); |
| IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| IntrusiveRefCntPtr<DiagnosticsEngine> Diags( |
| new DiagnosticsEngine(DiagID, new DiagnosticOptions, |
| DiagClient, /*ShouldOwnClient=*/false)); |
| |
| // Filter of all diagnostics. |
| CaptureDiagnosticConsumer errRec(*Diags, *DiagClient, capturedDiags); |
| Diags->setClient(&errRec, /*ShouldOwnClient=*/false); |
| |
| std::unique_ptr<ARCMTMacroTrackerAction> ASTAction; |
| ASTAction.reset(new ARCMTMacroTrackerAction(ARCMTMacroLocs)); |
| |
| std::unique_ptr<ASTUnit> Unit(ASTUnit::LoadFromCompilerInvocationAction( |
| std::move(CInvok), PCHContainerOps, Diags, ASTAction.get())); |
| if (!Unit) { |
| errRec.FinishCapture(); |
| return true; |
| } |
| Unit->setOwnsRemappedFileBuffers(false); // FileRemapper manages that. |
| |
| HadARCErrors = HadARCErrors || capturedDiags.hasErrors(); |
| |
| // Don't filter diagnostics anymore. |
| Diags->setClient(DiagClient, /*ShouldOwnClient=*/false); |
| |
| ASTContext &Ctx = Unit->getASTContext(); |
| |
| if (Diags->hasFatalErrorOccurred()) { |
| Diags->Reset(); |
| DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor()); |
| capturedDiags.reportDiagnostics(*Diags); |
| DiagClient->EndSourceFile(); |
| errRec.FinishCapture(); |
| return true; |
| } |
| |
| // After parsing of source files ended, we want to reuse the |
| // diagnostics objects to emit further diagnostics. |
| // We call BeginSourceFile because DiagnosticConsumer requires that |
| // diagnostics with source range information are emitted only in between |
| // BeginSourceFile() and EndSourceFile(). |
| DiagClient->BeginSourceFile(Ctx.getLangOpts(), &Unit->getPreprocessor()); |
| |
| Rewriter rewriter(Ctx.getSourceManager(), Ctx.getLangOpts()); |
| TransformActions TA(*Diags, capturedDiags, Ctx, Unit->getPreprocessor()); |
| MigrationPass pass(Ctx, OrigCI.getLangOpts()->getGC(), |
| Unit->getSema(), TA, capturedDiags, ARCMTMacroLocs); |
| |
| trans(pass); |
| |
| { |
| RewritesApplicator applicator(rewriter, Ctx, listener); |
| TA.applyRewrites(applicator); |
| } |
| |
| DiagClient->EndSourceFile(); |
| errRec.FinishCapture(); |
| |
| if (DiagClient->getNumErrors()) |
| return true; |
| |
| for (Rewriter::buffer_iterator |
| I = rewriter.buffer_begin(), E = rewriter.buffer_end(); I != E; ++I) { |
| FileID FID = I->first; |
| RewriteBuffer &buf = I->second; |
| const FileEntry *file = Ctx.getSourceManager().getFileEntryForID(FID); |
| assert(file); |
| std::string newFname = std::string(file->getName()); |
| newFname += "-trans"; |
| SmallString<512> newText; |
| llvm::raw_svector_ostream vecOS(newText); |
| buf.write(vecOS); |
| std::unique_ptr<llvm::MemoryBuffer> memBuf( |
| llvm::MemoryBuffer::getMemBufferCopy( |
| StringRef(newText.data(), newText.size()), newFname)); |
| SmallString<64> filePath(file->getName()); |
| Unit->getFileManager().FixupRelativePath(filePath); |
| Remapper.remap(filePath.str(), std::move(memBuf)); |
| } |
| |
| return false; |
| } |