diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp | 746 |
1 files changed, 537 insertions, 209 deletions
diff --git a/contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp b/contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp index 032adf3..e32fa63 100644 --- a/contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp +++ b/contrib/llvm/tools/clang/lib/Frontend/ASTUnit.cpp @@ -27,6 +27,7 @@ #include "clang/Frontend/FrontendActions.h" #include "clang/Frontend/FrontendDiagnostic.h" #include "clang/Frontend/FrontendOptions.h" +#include "clang/Frontend/MultiplexConsumer.h" #include "clang/Frontend/Utils.h" #include "clang/Serialization/ASTReader.h" #include "clang/Serialization/ASTWriter.h" @@ -46,6 +47,7 @@ #include "llvm/Support/Timer.h" #include "llvm/Support/FileSystem.h" #include "llvm/Support/Mutex.h" +#include "llvm/Support/MutexGuard.h" #include "llvm/Support/CrashRecoveryContext.h" #include <cstdlib> #include <cstdio> @@ -81,6 +83,121 @@ namespace { } } }; + + struct OnDiskData { + /// \brief The file in which the precompiled preamble is stored. + std::string PreambleFile; + + /// \brief Temporary files that should be removed when the ASTUnit is + /// destroyed. + SmallVector<llvm::sys::Path, 4> TemporaryFiles; + + /// \brief Erase temporary files. + void CleanTemporaryFiles(); + + /// \brief Erase the preamble file. + void CleanPreambleFile(); + + /// \brief Erase temporary files and the preamble file. + void Cleanup(); + }; +} + +static llvm::sys::SmartMutex<false> &getOnDiskMutex() { + static llvm::sys::SmartMutex<false> M(/* recursive = */ true); + return M; +} + +static void cleanupOnDiskMapAtExit(void); + +typedef llvm::DenseMap<const ASTUnit *, OnDiskData *> OnDiskDataMap; +static OnDiskDataMap &getOnDiskDataMap() { + static OnDiskDataMap M; + static bool hasRegisteredAtExit = false; + if (!hasRegisteredAtExit) { + hasRegisteredAtExit = true; + atexit(cleanupOnDiskMapAtExit); + } + return M; +} + +static void cleanupOnDiskMapAtExit(void) { + // No mutex required here since we are leaving the program. + OnDiskDataMap &M = getOnDiskDataMap(); + for (OnDiskDataMap::iterator I = M.begin(), E = M.end(); I != E; ++I) { + // We don't worry about freeing the memory associated with OnDiskDataMap. + // All we care about is erasing stale files. + I->second->Cleanup(); + } +} + +static OnDiskData &getOnDiskData(const ASTUnit *AU) { + // We require the mutex since we are modifying the structure of the + // DenseMap. + llvm::MutexGuard Guard(getOnDiskMutex()); + OnDiskDataMap &M = getOnDiskDataMap(); + OnDiskData *&D = M[AU]; + if (!D) + D = new OnDiskData(); + return *D; +} + +static void erasePreambleFile(const ASTUnit *AU) { + getOnDiskData(AU).CleanPreambleFile(); +} + +static void removeOnDiskEntry(const ASTUnit *AU) { + // We require the mutex since we are modifying the structure of the + // DenseMap. + llvm::MutexGuard Guard(getOnDiskMutex()); + OnDiskDataMap &M = getOnDiskDataMap(); + OnDiskDataMap::iterator I = M.find(AU); + if (I != M.end()) { + I->second->Cleanup(); + delete I->second; + M.erase(AU); + } +} + +static void setPreambleFile(const ASTUnit *AU, llvm::StringRef preambleFile) { + getOnDiskData(AU).PreambleFile = preambleFile; +} + +static const std::string &getPreambleFile(const ASTUnit *AU) { + return getOnDiskData(AU).PreambleFile; +} + +void OnDiskData::CleanTemporaryFiles() { + for (unsigned I = 0, N = TemporaryFiles.size(); I != N; ++I) + TemporaryFiles[I].eraseFromDisk(); + TemporaryFiles.clear(); +} + +void OnDiskData::CleanPreambleFile() { + if (!PreambleFile.empty()) { + llvm::sys::Path(PreambleFile).eraseFromDisk(); + PreambleFile.clear(); + } +} + +void OnDiskData::Cleanup() { + CleanTemporaryFiles(); + CleanPreambleFile(); +} + +void ASTUnit::clearFileLevelDecls() { + for (FileDeclsTy::iterator + I = FileDecls.begin(), E = FileDecls.end(); I != E; ++I) + delete I->second; + FileDecls.clear(); +} + +void ASTUnit::CleanTemporaryFiles() { + getOnDiskData(this).CleanTemporaryFiles(); +} + +void ASTUnit::addTemporaryFile(const llvm::sys::Path &TempFile) { + getOnDiskData(this).TemporaryFiles.push_back(TempFile); } /// \brief After failing to build a precompiled preamble (due to @@ -95,14 +212,14 @@ const unsigned DefaultPreambleRebuildInterval = 5; static llvm::sys::cas_flag ActiveASTUnitObjects; ASTUnit::ASTUnit(bool _MainFileIsAST) - : OnlyLocalDecls(false), CaptureDiagnostics(false), + : Reader(0), OnlyLocalDecls(false), CaptureDiagnostics(false), MainFileIsAST(_MainFileIsAST), TUKind(TU_Complete), WantTiming(getenv("LIBCLANG_TIMING")), OwnsRemappedFileBuffers(true), NumStoredDiagnosticsFromDriver(0), PreambleRebuildCounter(0), SavedMainFileBuffer(0), PreambleBuffer(0), + NumWarningsInPreamble(0), ShouldCacheCodeCompletionResults(false), - NestedMacroExpansions(true), CompletionCacheTopLevelHashValue(0), PreambleTopLevelHashValue(0), CurrentTopLevelHashValue(0), @@ -114,10 +231,11 @@ ASTUnit::ASTUnit(bool _MainFileIsAST) } ASTUnit::~ASTUnit() { - CleanTemporaryFiles(); - if (!PreambleFile.empty()) - llvm::sys::Path(PreambleFile).eraseFromDisk(); - + clearFileLevelDecls(); + + // Clean up the temporary files and the preamble file. + removeOnDiskEntry(this); + // Free the buffers associated with remapped files. We are required to // perform this operation here because we explicitly request that the // compiler instance *not* free these buffers for each invocation of the @@ -143,11 +261,7 @@ ASTUnit::~ASTUnit() { } } -void ASTUnit::CleanTemporaryFiles() { - for (unsigned I = 0, N = TemporaryFiles.size(); I != N; ++I) - TemporaryFiles[I].eraseFromDisk(); - TemporaryFiles.clear(); -} +void ASTUnit::setPreprocessor(Preprocessor *pp) { PP = pp; } /// \brief Determine the set of code-completion contexts in which this /// declaration should be shown. @@ -237,7 +351,8 @@ void ASTUnit::CacheCodeCompletionResults() { typedef CodeCompletionResult Result; SmallVector<Result, 8> Results; CachedCompletionAllocator = new GlobalCodeCompletionAllocator; - TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator, Results); + TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator, + getCodeCompletionTUInfo(), Results); // Translate global code completions into cached completions. llvm::DenseMap<CanQualType, unsigned> CompletionTypes; @@ -248,9 +363,10 @@ void ASTUnit::CacheCodeCompletionResults() { bool IsNestedNameSpecifier = false; CachedCodeCompletionResult CachedResult; CachedResult.Completion = Results[I].CreateCodeCompletionString(*TheSema, - *CachedCompletionAllocator); + *CachedCompletionAllocator, + getCodeCompletionTUInfo()); CachedResult.ShowInContexts = getDeclShowContexts(Results[I].Declaration, - Ctx->getLangOptions(), + Ctx->getLangOpts(), IsNestedNameSpecifier); CachedResult.Priority = Results[I].Priority; CachedResult.Kind = Results[I].CursorKind; @@ -283,7 +399,7 @@ void ASTUnit::CacheCodeCompletionResults() { CachedCompletionResults.push_back(CachedResult); /// Handle nested-name-specifiers in C++. - if (TheSema->Context.getLangOptions().CPlusPlus && + if (TheSema->Context.getLangOpts().CPlusPlus && IsNestedNameSpecifier && !Results[I].StartsNestedNameSpecifier) { // The contexts in which a nested-name-specifier can appear in C++. unsigned NNSContexts @@ -312,7 +428,8 @@ void ASTUnit::CacheCodeCompletionResults() { Results[I].StartsNestedNameSpecifier = true; CachedResult.Completion = Results[I].CreateCodeCompletionString(*TheSema, - *CachedCompletionAllocator); + *CachedCompletionAllocator, + getCodeCompletionTUInfo()); CachedResult.ShowInContexts = RemainingContexts; CachedResult.Priority = CCP_NestedNameSpecifier; CachedResult.TypeClass = STC_Void; @@ -333,7 +450,8 @@ void ASTUnit::CacheCodeCompletionResults() { CachedCodeCompletionResult CachedResult; CachedResult.Completion = Results[I].CreateCodeCompletionString(*TheSema, - *CachedCompletionAllocator); + *CachedCompletionAllocator, + getCodeCompletionTUInfo()); CachedResult.ShowInContexts = (1 << (CodeCompletionContext::CCC_TopLevel - 1)) | (1 << (CodeCompletionContext::CCC_ObjCInterface - 1)) @@ -378,7 +496,7 @@ class ASTInfoCollector : public ASTReaderListener { ASTContext &Context; LangOptions &LangOpt; HeaderSearch &HSI; - llvm::IntrusiveRefCntPtr<TargetInfo> &Target; + IntrusiveRefCntPtr<TargetInfo> &Target; std::string &Predefines; unsigned &Counter; @@ -388,7 +506,7 @@ class ASTInfoCollector : public ASTReaderListener { public: ASTInfoCollector(Preprocessor &PP, ASTContext &Context, LangOptions &LangOpt, HeaderSearch &HSI, - llvm::IntrusiveRefCntPtr<TargetInfo> &Target, + IntrusiveRefCntPtr<TargetInfo> &Target, std::string &Predefines, unsigned &Counter) : PP(PP), Context(Context), LangOpt(LangOpt), HSI(HSI), Target(Target), @@ -461,6 +579,9 @@ public: DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { // Just drop any diagnostics that come from cloned consumers; they'll // have different source managers anyway. + // FIXME: We'd like to be able to capture these somehow, even if it's just + // file/line/column, because they could occur when parsing module maps or + // building modules on-demand. return new IgnoringDiagConsumer(); } }; @@ -512,7 +633,7 @@ llvm::MemoryBuffer *ASTUnit::getBufferForFile(StringRef Filename, } /// \brief Configure the diagnostics object for use with ASTUnit. -void ASTUnit::ConfigureDiags(llvm::IntrusiveRefCntPtr<DiagnosticsEngine> &Diags, +void ASTUnit::ConfigureDiags(IntrusiveRefCntPtr<DiagnosticsEngine> &Diags, const char **ArgBegin, const char **ArgEnd, ASTUnit &AST, bool CaptureDiagnostics) { if (!Diags.getPtr()) { @@ -530,13 +651,14 @@ void ASTUnit::ConfigureDiags(llvm::IntrusiveRefCntPtr<DiagnosticsEngine> &Diags, } ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, - llvm::IntrusiveRefCntPtr<DiagnosticsEngine> Diags, + IntrusiveRefCntPtr<DiagnosticsEngine> Diags, const FileSystemOptions &FileSystemOpts, bool OnlyLocalDecls, RemappedFile *RemappedFiles, unsigned NumRemappedFiles, - bool CaptureDiagnostics) { - llvm::OwningPtr<ASTUnit> AST(new ASTUnit(true)); + bool CaptureDiagnostics, + bool AllowPCHWithCompilerErrors) { + OwningPtr<ASTUnit> AST(new ASTUnit(true)); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> @@ -553,7 +675,10 @@ ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, AST->FileMgr = new FileManager(FileSystemOpts); AST->SourceMgr = new SourceManager(AST->getDiagnostics(), AST->getFileManager()); - AST->HeaderInfo.reset(new HeaderSearch(AST->getFileManager())); + AST->HeaderInfo.reset(new HeaderSearch(AST->getFileManager(), + AST->getDiagnostics(), + AST->ASTFileLangOpts, + /*Target=*/0)); for (unsigned I = 0; I != NumRemappedFiles; ++I) { FilenameOrMemBuf fileOrBuf = RemappedFiles[I].second; @@ -608,7 +733,7 @@ ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, std::string Predefines; unsigned Counter; - llvm::OwningPtr<ASTReader> Reader; + OwningPtr<ASTReader> Reader; AST->PP = new Preprocessor(AST->getDiagnostics(), AST->ASTFileLangOpts, /*Target=*/0, AST->getSourceManager(), HeaderInfo, @@ -628,7 +753,11 @@ ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, /*DelayInitialization=*/true); ASTContext &Context = *AST->Ctx; - Reader.reset(new ASTReader(PP, Context)); + Reader.reset(new ASTReader(PP, Context, + /*isysroot=*/"", + /*DisableValidation=*/false, + /*DisableStatCache=*/false, + AllowPCHWithCompilerErrors)); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<ASTReader> @@ -657,7 +786,7 @@ ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, // source, so that declarations will be deserialized from the // AST file as needed. ASTReader *ReaderPtr = Reader.get(); - llvm::OwningPtr<ExternalASTSource> Source(Reader.take()); + OwningPtr<ExternalASTSource> Source(Reader.take()); // Unregister the cleanup for ASTReader. It will get cleaned up // by the ASTUnit cleanup. @@ -672,6 +801,7 @@ ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename, AST->TheSema.reset(new Sema(PP, Context, *AST->Consumer)); AST->TheSema->Initialize(); ReaderPtr->InitializeSema(*AST->TheSema); + AST->Reader = ReaderPtr; return AST.take(); } @@ -711,22 +841,7 @@ void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) { Hash = llvm::HashString(NameStr, Hash); } return; - } - - if (ObjCForwardProtocolDecl *Forward - = dyn_cast<ObjCForwardProtocolDecl>(D)) { - for (ObjCForwardProtocolDecl::protocol_iterator - P = Forward->protocol_begin(), - PEnd = Forward->protocol_end(); - P != PEnd; ++P) - AddTopLevelDeclarationToHash(*P, Hash); - return; - } - - if (ObjCClassDecl *Class = dyn_cast<ObjCClassDecl>(D)) { - AddTopLevelDeclarationToHash(Class->getForwardInterfaceDecl(), Hash); - return; - } + } } class TopLevelDeclTrackerConsumer : public ASTConsumer { @@ -738,24 +853,46 @@ public: : Unit(_Unit), Hash(Hash) { Hash = 0; } - - void HandleTopLevelDecl(DeclGroupRef D) { - for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it) { - Decl *D = *it; - // FIXME: Currently ObjC method declarations are incorrectly being - // reported as top-level declarations, even though their DeclContext - // is the containing ObjC @interface/@implementation. This is a - // fundamental problem in the parser right now. - if (isa<ObjCMethodDecl>(D)) - continue; - AddTopLevelDeclarationToHash(D, Hash); - Unit.addTopLevelDecl(D); + void handleTopLevelDecl(Decl *D) { + if (!D) + return; + + // FIXME: Currently ObjC method declarations are incorrectly being + // reported as top-level declarations, even though their DeclContext + // is the containing ObjC @interface/@implementation. This is a + // fundamental problem in the parser right now. + if (isa<ObjCMethodDecl>(D)) + return; + + AddTopLevelDeclarationToHash(D, Hash); + Unit.addTopLevelDecl(D); + + handleFileLevelDecl(D); + } + + void handleFileLevelDecl(Decl *D) { + Unit.addFileLevelDecl(D); + if (NamespaceDecl *NSD = dyn_cast<NamespaceDecl>(D)) { + for (NamespaceDecl::decl_iterator + I = NSD->decls_begin(), E = NSD->decls_end(); I != E; ++I) + handleFileLevelDecl(*I); } } + bool HandleTopLevelDecl(DeclGroupRef D) { + for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it) + handleTopLevelDecl(*it); + return true; + } + // We're not interested in "interesting" decls. void HandleInterestingDecl(DeclGroupRef) {} + + void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) { + for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it) + handleTopLevelDecl(*it); + } }; class TopLevelDeclTrackerAction : public ASTFrontendAction { @@ -787,12 +924,12 @@ class PrecompilePreambleConsumer : public PCHGenerator { public: PrecompilePreambleConsumer(ASTUnit &Unit, const Preprocessor &PP, StringRef isysroot, raw_ostream *Out) - : PCHGenerator(PP, "", /*IsModule=*/false, isysroot, Out), Unit(Unit), + : PCHGenerator(PP, "", 0, isysroot, Out), Unit(Unit), Hash(Unit.getCurrentTopLevelHashValue()) { Hash = 0; } - virtual void HandleTopLevelDecl(DeclGroupRef D) { + virtual bool HandleTopLevelDecl(DeclGroupRef D) { for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it) { Decl *D = *it; // FIXME: Currently ObjC method declarations are incorrectly being @@ -804,6 +941,7 @@ public: AddTopLevelDeclarationToHash(D, Hash); TopLevelDecls.push_back(D); } + return true; } virtual void HandleTranslationUnit(ASTContext &Ctx) { @@ -852,6 +990,34 @@ public: } +static void checkAndRemoveNonDriverDiags(SmallVectorImpl<StoredDiagnostic> & + StoredDiagnostics) { + // Get rid of stored diagnostics except the ones from the driver which do not + // have a source location. + for (unsigned I = 0; I < StoredDiagnostics.size(); ++I) { + if (StoredDiagnostics[I].getLocation().isValid()) { + StoredDiagnostics.erase(StoredDiagnostics.begin()+I); + --I; + } + } +} + +static void checkAndSanitizeDiags(SmallVectorImpl<StoredDiagnostic> & + StoredDiagnostics, + SourceManager &SM) { + // The stored diagnostic has the old source manager in it; update + // the locations to refer into the new source manager. Since we've + // been careful to make sure that the source manager's state + // before and after are identical, so that we can reuse the source + // location itself. + for (unsigned I = 0, N = StoredDiagnostics.size(); I < N; ++I) { + if (StoredDiagnostics[I].getLocation().isValid()) { + FullSourceLoc Loc(StoredDiagnostics[I].getLocation(), SM); + StoredDiagnostics[I].setLocation(Loc); + } + } +} + /// Parse the source file into a translation unit using the given compiler /// invocation, replacing the current translation unit. /// @@ -867,17 +1033,17 @@ bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) { } // Create the compiler instance to use for building the AST. - llvm::OwningPtr<CompilerInstance> Clang(new CompilerInstance()); + OwningPtr<CompilerInstance> Clang(new CompilerInstance()); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> CICleanup(Clang.get()); - llvm::IntrusiveRefCntPtr<CompilerInvocation> + IntrusiveRefCntPtr<CompilerInvocation> CCInvocation(new CompilerInvocation(*Invocation)); Clang->setInvocation(CCInvocation.getPtr()); - OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].second; + OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].File; // Set up diagnostics, capturing any diagnostics that would // otherwise be dropped. @@ -900,28 +1066,29 @@ bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) { assert(Clang->getFrontendOpts().Inputs.size() == 1 && "Invocation must have exactly one source file!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_AST && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_AST && "FIXME: AST inputs not yet supported here!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_LLVM_IR && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_LLVM_IR && "IR inputs not support here!"); // Configure the various subsystems. // FIXME: Should we retain the previous file manager? + LangOpts = &Clang->getLangOpts(); FileSystemOpts = Clang->getFileSystemOpts(); FileMgr = new FileManager(FileSystemOpts); SourceMgr = new SourceManager(getDiagnostics(), *FileMgr); TheSema.reset(); Ctx = 0; PP = 0; + Reader = 0; // Clear out old caches and data. TopLevelDecls.clear(); + clearFileLevelDecls(); CleanTemporaryFiles(); if (!OverrideMainBuffer) { - StoredDiagnostics.erase( - StoredDiagnostics.begin() + NumStoredDiagnosticsFromDriver, - StoredDiagnostics.end()); + checkAndRemoveNonDriverDiags(StoredDiagnostics); TopLevelDeclsInPreamble.clear(); } @@ -934,14 +1101,12 @@ bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) { // If the main file has been overridden due to the use of a preamble, // make that override happen and introduce the preamble. PreprocessorOptions &PreprocessorOpts = Clang->getPreprocessorOpts(); - PreprocessorOpts.DetailedRecordIncludesNestedMacroExpansions - = NestedMacroExpansions; if (OverrideMainBuffer) { PreprocessorOpts.addRemappedFile(OriginalSourceFile, OverrideMainBuffer); PreprocessorOpts.PrecompiledPreambleBytes.first = Preamble.size(); PreprocessorOpts.PrecompiledPreambleBytes.second = PreambleEndsAtStartOfLine; - PreprocessorOpts.ImplicitPCHInclude = PreambleFile; + PreprocessorOpts.ImplicitPCHInclude = getPreambleFile(this); PreprocessorOpts.DisablePCHValidation = true; // The stored diagnostic has the old source manager in it; update @@ -949,49 +1114,37 @@ bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) { // been careful to make sure that the source manager's state // before and after are identical, so that we can reuse the source // location itself. - for (unsigned I = NumStoredDiagnosticsFromDriver, - N = StoredDiagnostics.size(); - I < N; ++I) { - FullSourceLoc Loc(StoredDiagnostics[I].getLocation(), - getSourceManager()); - StoredDiagnostics[I].setLocation(Loc); - } + checkAndSanitizeDiags(StoredDiagnostics, getSourceManager()); // Keep track of the override buffer; SavedMainFileBuffer = OverrideMainBuffer; } - llvm::OwningPtr<TopLevelDeclTrackerAction> Act( + OwningPtr<TopLevelDeclTrackerAction> Act( new TopLevelDeclTrackerAction(*this)); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction> ActCleanup(Act.get()); - if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0].second, - Clang->getFrontendOpts().Inputs[0].first)) + if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) goto error; if (OverrideMainBuffer) { - std::string ModName = PreambleFile; + std::string ModName = getPreambleFile(this); TranslateStoredDiagnostics(Clang->getModuleManager(), ModName, getSourceManager(), PreambleDiagnostics, StoredDiagnostics); } Act->Execute(); - - // Steal the created target, context, and preprocessor. - TheSema.reset(Clang->takeSema()); - Consumer.reset(Clang->takeASTConsumer()); - Ctx = &Clang->getASTContext(); - PP = &Clang->getPreprocessor(); - Clang->setSourceManager(0); - Clang->setFileManager(0); - Target = &Clang->getTarget(); + + transferASTDataFromCompilerInstance(*Clang); Act->EndSourceFile(); + FailedParseDiagnostics.clear(); + return false; error: @@ -1000,8 +1153,13 @@ error: delete OverrideMainBuffer; SavedMainFileBuffer = 0; } - + + // Keep the ownership of the data in the ASTUnit because the client may + // want to see the diagnostics. + transferASTDataFromCompilerInstance(*Clang); + FailedParseDiagnostics.swap(StoredDiagnostics); StoredDiagnostics.clear(); + NumStoredDiagnosticsFromDriver = 0; return true; } @@ -1053,7 +1211,7 @@ ASTUnit::ComputePreamble(CompilerInvocation &Invocation, // command line (to another file) or directly through the compiler invocation // (to a memory buffer). llvm::MemoryBuffer *Buffer = 0; - llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].second); + llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].File); if (const llvm::sys::FileStatus *MainFileStatus = MainFilePath.getFileStatus()) { // Check whether there is a file-file remapping of the main file for (PreprocessorOptions::remapped_file_iterator @@ -1103,7 +1261,7 @@ ASTUnit::ComputePreamble(CompilerInvocation &Invocation, // If the main source file was not remapped, load it now. if (!Buffer) { - Buffer = getBufferForFile(FrontendOpts.Inputs[0].second); + Buffer = getBufferForFile(FrontendOpts.Inputs[0].File); if (!Buffer) return std::make_pair((llvm::MemoryBuffer*)0, std::make_pair(0, true)); @@ -1111,7 +1269,7 @@ ASTUnit::ComputePreamble(CompilerInvocation &Invocation, } return std::make_pair(Buffer, Lexer::ComputePreamble(Buffer, - Invocation.getLangOpts(), + *Invocation.getLangOpts(), MaxLines)); } @@ -1154,7 +1312,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( bool AllowRebuild, unsigned MaxLines) { - llvm::IntrusiveRefCntPtr<CompilerInvocation> + IntrusiveRefCntPtr<CompilerInvocation> PreambleInvocation(new CompilerInvocation(PreambleInvocationIn)); FrontendOptions &FrontendOpts = PreambleInvocation->getFrontendOpts(); PreprocessorOptions &PreprocessorOpts @@ -1165,7 +1323,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( = ComputePreamble(*PreambleInvocation, MaxLines, CreatedPreambleBuffer); // If ComputePreamble() Take ownership of the preamble buffer. - llvm::OwningPtr<llvm::MemoryBuffer> OwnedPreambleBuffer; + OwningPtr<llvm::MemoryBuffer> OwnedPreambleBuffer; if (CreatedPreambleBuffer) OwnedPreambleBuffer.reset(NewPreamble.first); @@ -1173,10 +1331,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // We couldn't find a preamble in the main source. Clear out the current // preamble, if we have one. It's obviously no good any more. Preamble.clear(); - if (!PreambleFile.empty()) { - llvm::sys::Path(PreambleFile).eraseFromDisk(); - PreambleFile.clear(); - } + erasePreambleFile(this); // The next time we actually see a preamble, precompile it. PreambleRebuildCounter = 1; @@ -1259,8 +1414,6 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // Set the state of the diagnostic object to mimic its state // after parsing the preamble. - // FIXME: This won't catch any #pragma push warning changes that - // have occurred in the preamble. getDiagnostics().Reset(); ProcessWarningOptions(getDiagnostics(), PreambleInvocation->getDiagnosticOpts()); @@ -1270,7 +1423,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // buffer size we reserved when creating the preamble. return CreatePaddedMainFileBuffer(NewPreamble.first, PreambleReservedSize, - FrontendOpts.Inputs[0].second); + FrontendOpts.Inputs[0].File); } } @@ -1282,7 +1435,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // We can't reuse the previously-computed preamble. Build a new one. Preamble.clear(); PreambleDiagnostics.clear(); - llvm::sys::Path(PreambleFile).eraseFromDisk(); + erasePreambleFile(this); PreambleRebuildCounter = 1; } else if (!AllowRebuild) { // We aren't allowed to rebuild the precompiled preamble; just @@ -1323,7 +1476,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // Save the preamble text for later; we'll need to compare against it for // subsequent reparses. - StringRef MainFilename = PreambleInvocation->getFrontendOpts().Inputs[0].second; + StringRef MainFilename = PreambleInvocation->getFrontendOpts().Inputs[0].File; Preamble.assign(FileMgr->getFile(MainFilename), NewPreamble.first->getBufferStart(), NewPreamble.first->getBufferStart() @@ -1333,7 +1486,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( delete PreambleBuffer; PreambleBuffer = llvm::MemoryBuffer::getNewUninitMemBuffer(PreambleReservedSize, - FrontendOpts.Inputs[0].second); + FrontendOpts.Inputs[0].File); memcpy(const_cast<char*>(PreambleBuffer->getBufferStart()), NewPreamble.first->getBufferStart(), Preamble.size()); memset(const_cast<char*>(PreambleBuffer->getBufferStart()) + Preamble.size(), @@ -1341,7 +1494,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( const_cast<char*>(PreambleBuffer->getBufferEnd())[-1] = '\n'; // Remap the main source file to the preamble buffer. - llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].second); + llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].File); PreprocessorOpts.addRemappedFile(MainFilePath.str(), PreambleBuffer); // Tell the compiler invocation to generate a temporary precompiled header. @@ -1352,14 +1505,14 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( PreprocessorOpts.PrecompiledPreambleBytes.second = false; // Create the compiler instance to use for building the precompiled preamble. - llvm::OwningPtr<CompilerInstance> Clang(new CompilerInstance()); + OwningPtr<CompilerInstance> Clang(new CompilerInstance()); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> CICleanup(Clang.get()); Clang->setInvocation(&*PreambleInvocation); - OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].second; + OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].File; // Set up diagnostics, capturing all of the diagnostics produced. Clang->setDiagnostics(&getDiagnostics()); @@ -1385,17 +1538,15 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( assert(Clang->getFrontendOpts().Inputs.size() == 1 && "Invocation must have exactly one source file!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_AST && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_AST && "FIXME: AST inputs not yet supported here!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_LLVM_IR && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_LLVM_IR && "IR inputs not support here!"); // Clear out old caches and data. getDiagnostics().Reset(); ProcessWarningOptions(getDiagnostics(), Clang->getDiagnosticOpts()); - StoredDiagnostics.erase( - StoredDiagnostics.begin() + NumStoredDiagnosticsFromDriver, - StoredDiagnostics.end()); + checkAndRemoveNonDriverDiags(StoredDiagnostics); TopLevelDecls.clear(); TopLevelDeclsInPreamble.clear(); @@ -1406,10 +1557,9 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( Clang->setSourceManager(new SourceManager(getDiagnostics(), Clang->getFileManager())); - llvm::OwningPtr<PrecompilePreambleAction> Act; + OwningPtr<PrecompilePreambleAction> Act; Act.reset(new PrecompilePreambleAction(*this)); - if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0].second, - Clang->getFrontendOpts().Inputs[0].first)) { + if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) { llvm::sys::Path(FrontendOpts.OutputFile).eraseFromDisk(); Preamble.clear(); PreambleRebuildCounter = DefaultPreambleRebuildInterval; @@ -1438,14 +1588,11 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( // of preamble diagnostics. PreambleDiagnostics.clear(); PreambleDiagnostics.insert(PreambleDiagnostics.end(), - StoredDiagnostics.begin() + NumStoredDiagnosticsFromDriver, - StoredDiagnostics.end()); - StoredDiagnostics.erase( - StoredDiagnostics.begin() + NumStoredDiagnosticsFromDriver, - StoredDiagnostics.end()); + stored_diag_afterDriver_begin(), stored_diag_end()); + checkAndRemoveNonDriverDiags(StoredDiagnostics); // Keep track of the preamble we precompiled. - PreambleFile = FrontendOpts.OutputFile; + setPreambleFile(this, FrontendOpts.OutputFile); NumWarningsInPreamble = getDiagnostics().getNumWarnings(); // Keep track of all of the files that the source manager knows about, @@ -1480,7 +1627,7 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble( return CreatePaddedMainFileBuffer(NewPreamble.first, PreambleReservedSize, - FrontendOpts.Inputs[0].second); + FrontendOpts.Inputs[0].File); } void ASTUnit::RealizeTopLevelDeclsFromPreamble() { @@ -1498,15 +1645,28 @@ void ASTUnit::RealizeTopLevelDeclsFromPreamble() { TopLevelDecls.insert(TopLevelDecls.begin(), Resolved.begin(), Resolved.end()); } +void ASTUnit::transferASTDataFromCompilerInstance(CompilerInstance &CI) { + // Steal the created target, context, and preprocessor. + TheSema.reset(CI.takeSema()); + Consumer.reset(CI.takeASTConsumer()); + Ctx = &CI.getASTContext(); + PP = &CI.getPreprocessor(); + CI.setSourceManager(0); + CI.setFileManager(0); + Target = &CI.getTarget(); + Reader = CI.getModuleManager(); +} + StringRef ASTUnit::getMainFileName() const { - return Invocation->getFrontendOpts().Inputs[0].second; + return Invocation->getFrontendOpts().Inputs[0].File; } ASTUnit *ASTUnit::create(CompilerInvocation *CI, - llvm::IntrusiveRefCntPtr<DiagnosticsEngine> Diags) { - llvm::OwningPtr<ASTUnit> AST; + IntrusiveRefCntPtr<DiagnosticsEngine> Diags, + bool CaptureDiagnostics) { + OwningPtr<ASTUnit> AST; AST.reset(new ASTUnit(false)); - ConfigureDiags(Diags, 0, 0, *AST, /*CaptureDiagnostics=*/false); + ConfigureDiags(Diags, 0, 0, *AST, CaptureDiagnostics); AST->Diagnostics = Diags; AST->Invocation = CI; AST->FileSystemOpts = CI->getFileSystemOpts(); @@ -1517,23 +1677,36 @@ ASTUnit *ASTUnit::create(CompilerInvocation *CI, } ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI, - llvm::IntrusiveRefCntPtr<DiagnosticsEngine> Diags, + IntrusiveRefCntPtr<DiagnosticsEngine> Diags, ASTFrontendAction *Action, - ASTUnit *Unit) { + ASTUnit *Unit, + bool Persistent, + StringRef ResourceFilesPath, + bool OnlyLocalDecls, + bool CaptureDiagnostics, + bool PrecompilePreamble, + bool CacheCodeCompletionResults, + OwningPtr<ASTUnit> *ErrAST) { assert(CI && "A CompilerInvocation is required"); - llvm::OwningPtr<ASTUnit> OwnAST; + OwningPtr<ASTUnit> OwnAST; ASTUnit *AST = Unit; if (!AST) { // Create the AST unit. - OwnAST.reset(create(CI, Diags)); + OwnAST.reset(create(CI, Diags, CaptureDiagnostics)); AST = OwnAST.get(); } - AST->OnlyLocalDecls = false; - AST->CaptureDiagnostics = false; + if (!ResourceFilesPath.empty()) { + // Override the resources path. + CI->getHeaderSearchOpts().ResourceDir = ResourceFilesPath; + } + AST->OnlyLocalDecls = OnlyLocalDecls; + AST->CaptureDiagnostics = CaptureDiagnostics; + if (PrecompilePreamble) + AST->PreambleRebuildCounter = 2; AST->TUKind = Action ? Action->getTranslationUnitKind() : TU_Complete; - AST->ShouldCacheCodeCompletionResults = false; + AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults; // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> @@ -1551,14 +1724,14 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI, AST->TargetFeatures = CI->getTargetOpts().Features; // Create the compiler instance to use for building the AST. - llvm::OwningPtr<CompilerInstance> Clang(new CompilerInstance()); + OwningPtr<CompilerInstance> Clang(new CompilerInstance()); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> CICleanup(Clang.get()); Clang->setInvocation(CI); - AST->OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].second; + AST->OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].File; // Set up diagnostics, capturing any diagnostics that would // otherwise be dropped. @@ -1579,15 +1752,16 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI, assert(Clang->getFrontendOpts().Inputs.size() == 1 && "Invocation must have exactly one source file!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_AST && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_AST && "FIXME: AST inputs not yet supported here!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_LLVM_IR && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_LLVM_IR && "IR inputs not supported here!"); // Configure the various subsystems. AST->TheSema.reset(); AST->Ctx = 0; AST->PP = 0; + AST->Reader = 0; // Create a file manager object to provide access to and cache the filesystem. Clang->setFileManager(&AST->getFileManager()); @@ -1597,7 +1771,7 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI, ASTFrontendAction *Act = Action; - llvm::OwningPtr<TopLevelDeclTrackerAction> TrackerAct; + OwningPtr<TopLevelDeclTrackerAction> TrackerAct; if (!Act) { TrackerAct.reset(new TopLevelDeclTrackerAction(*AST)); Act = TrackerAct.get(); @@ -1607,21 +1781,28 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI, llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction> ActCleanup(TrackerAct.get()); - if (!Act->BeginSourceFile(*Clang.get(), - Clang->getFrontendOpts().Inputs[0].second, - Clang->getFrontendOpts().Inputs[0].first)) + if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) { + AST->transferASTDataFromCompilerInstance(*Clang); + if (OwnAST && ErrAST) + ErrAST->swap(OwnAST); + return 0; - + } + + if (Persistent && !TrackerAct) { + Clang->getPreprocessor().addPPCallbacks( + new MacroDefinitionTrackerPPCallbacks(AST->getCurrentTopLevelHashValue())); + std::vector<ASTConsumer*> Consumers; + if (Clang->hasASTConsumer()) + Consumers.push_back(Clang->takeASTConsumer()); + Consumers.push_back(new TopLevelDeclTrackerConsumer(*AST, + AST->getCurrentTopLevelHashValue())); + Clang->setASTConsumer(new MultiplexConsumer(Consumers)); + } Act->Execute(); - + // Steal the created target, context, and preprocessor. - AST->TheSema.reset(Clang->takeSema()); - AST->Consumer.reset(Clang->takeASTConsumer()); - AST->Ctx = &Clang->getASTContext(); - AST->PP = &Clang->getPreprocessor(); - Clang->setSourceManager(0); - Clang->setFileManager(0); - AST->Target = &Clang->getTarget(); + AST->transferASTDataFromCompilerInstance(*Clang); Act->EndSourceFile(); @@ -1661,15 +1842,14 @@ bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) { } ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI, - llvm::IntrusiveRefCntPtr<DiagnosticsEngine> Diags, + IntrusiveRefCntPtr<DiagnosticsEngine> Diags, bool OnlyLocalDecls, bool CaptureDiagnostics, bool PrecompilePreamble, TranslationUnitKind TUKind, - bool CacheCodeCompletionResults, - bool NestedMacroExpansions) { + bool CacheCodeCompletionResults) { // Create the AST unit. - llvm::OwningPtr<ASTUnit> AST; + OwningPtr<ASTUnit> AST; AST.reset(new ASTUnit(false)); ConfigureDiags(Diags, 0, 0, *AST, CaptureDiagnostics); AST->Diagnostics = Diags; @@ -1678,7 +1858,6 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI, AST->TUKind = TUKind; AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults; AST->Invocation = CI; - AST->NestedMacroExpansions = NestedMacroExpansions; // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> @@ -1692,7 +1871,7 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI, ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin, const char **ArgEnd, - llvm::IntrusiveRefCntPtr<DiagnosticsEngine> Diags, + IntrusiveRefCntPtr<DiagnosticsEngine> Diags, StringRef ResourceFilesPath, bool OnlyLocalDecls, bool CaptureDiagnostics, @@ -1702,7 +1881,9 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin, bool PrecompilePreamble, TranslationUnitKind TUKind, bool CacheCodeCompletionResults, - bool NestedMacroExpansions) { + bool AllowPCHWithCompilerErrors, + bool SkipFunctionBodies, + OwningPtr<ASTUnit> *ErrAST) { if (!Diags.getPtr()) { // No diagnostics engine was provided, so create our own diagnostics object // with the default options. @@ -1713,7 +1894,7 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin, SmallVector<StoredDiagnostic, 4> StoredDiagnostics; - llvm::IntrusiveRefCntPtr<CompilerInvocation> CI; + IntrusiveRefCntPtr<CompilerInvocation> CI; { @@ -1738,18 +1919,21 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin, CI->getPreprocessorOpts().addRemappedFile(RemappedFiles[I].first, fname); } } - CI->getPreprocessorOpts().RemappedFilesKeepOriginalName = - RemappedFilesKeepOriginalName; + PreprocessorOptions &PPOpts = CI->getPreprocessorOpts(); + PPOpts.RemappedFilesKeepOriginalName = RemappedFilesKeepOriginalName; + PPOpts.AllowPCHWithCompilerErrors = AllowPCHWithCompilerErrors; // Override the resources path. CI->getHeaderSearchOpts().ResourceDir = ResourceFilesPath; + CI->getFrontendOpts().SkipFunctionBodies = SkipFunctionBodies; + // Create the AST unit. - llvm::OwningPtr<ASTUnit> AST; + OwningPtr<ASTUnit> AST; AST.reset(new ASTUnit(false)); ConfigureDiags(Diags, ArgBegin, ArgEnd, *AST, CaptureDiagnostics); AST->Diagnostics = Diags; - + Diags = 0; // Zero out now to ease cleanup during crash recovery. AST->FileSystemOpts = CI->getFileSystemOpts(); AST->FileMgr = new FileManager(AST->FileSystemOpts); AST->OnlyLocalDecls = OnlyLocalDecls; @@ -1759,24 +1943,30 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin, AST->NumStoredDiagnosticsFromDriver = StoredDiagnostics.size(); AST->StoredDiagnostics.swap(StoredDiagnostics); AST->Invocation = CI; - AST->NestedMacroExpansions = NestedMacroExpansions; + CI = 0; // Zero out now to ease cleanup during crash recovery. // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit> ASTUnitCleanup(AST.get()); - llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation, - llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> > - CICleanup(CI.getPtr()); - llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, - llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> > - DiagCleanup(Diags.getPtr()); - return AST->LoadFromCompilerInvocation(PrecompilePreamble) ? 0 : AST.take(); + if (AST->LoadFromCompilerInvocation(PrecompilePreamble)) { + // Some error occurred, if caller wants to examine diagnostics, pass it the + // ASTUnit. + if (ErrAST) { + AST->StoredDiagnostics.swap(AST->FailedParseDiagnostics); + ErrAST->swap(AST); + } + return 0; + } + + return AST.take(); } bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) { if (!Invocation) return true; + + clearFileLevelDecls(); SimpleTimer ParsingTimer(WantTiming); ParsingTimer.setOutput("Reparsing " + getMainFileName()); @@ -1808,15 +1998,15 @@ bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) { // If we have a preamble file lying around, or if we might try to // build a precompiled preamble, do so now. llvm::MemoryBuffer *OverrideMainBuffer = 0; - if (!PreambleFile.empty() || PreambleRebuildCounter > 0) + if (!getPreambleFile(this).empty() || PreambleRebuildCounter > 0) OverrideMainBuffer = getMainBufferWithPrecompiledPreamble(*Invocation); // Clear out the diagnostics state. - if (!OverrideMainBuffer) { - getDiagnostics().Reset(); - ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts()); - } - + getDiagnostics().Reset(); + ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts()); + if (OverrideMainBuffer) + getDiagnostics().setNumWarnings(NumWarningsInPreamble); + // Parse the sources bool Result = Parse(OverrideMainBuffer); @@ -1826,9 +2016,9 @@ bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) { CurrentTopLevelHashValue != CompletionCacheTopLevelHashValue) CacheCodeCompletionResults(); - // We now need to clear out the completion allocator for - // clang_getCursorCompletionString; it'll be recreated if necessary. - CursorCompletionAllocator = 0; + // We now need to clear out the completion info related to this translation + // unit; it'll be recreated if necessary. + CCTUInfo.reset(); return Result; } @@ -1870,7 +2060,7 @@ namespace { | (1LL << (CodeCompletionContext::CCC_ParenthesizedExpression - 1)) | (1LL << (CodeCompletionContext::CCC_Recovery - 1)); - if (AST.getASTContext().getLangOptions().CPlusPlus) + if (AST.getASTContext().getLangOpts().CPlusPlus) NormalContexts |= (1LL << (CodeCompletionContext::CCC_EnumTag - 1)) | (1LL << (CodeCompletionContext::CCC_UnionTag - 1)) | (1LL << (CodeCompletionContext::CCC_ClassOrStructTag - 1)); @@ -1890,6 +2080,10 @@ namespace { virtual CodeCompletionAllocator &getAllocator() { return Next.getAllocator(); } + + virtual CodeCompletionTUInfo &getCodeCompletionTUInfo() { + return Next.getCodeCompletionTUInfo(); + } }; } @@ -1961,7 +2155,7 @@ static void CalculateHiddenNames(const CodeCompletionContext &Context, unsigned HiddenIDNS = (Decl::IDNS_Type | Decl::IDNS_Member | Decl::IDNS_Namespace | Decl::IDNS_Ordinary | Decl::IDNS_NonMemberOperator); - if (Ctx.getLangOptions().CPlusPlus) + if (Ctx.getLangOpts().CPlusPlus) HiddenIDNS |= Decl::IDNS_Tag; Hiding = (IDNS & HiddenIDNS); } @@ -2021,7 +2215,7 @@ void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S, if (!Context.getPreferredType().isNull()) { if (C->Kind == CXCursor_MacroDefinition) { Priority = getMacroUsagePriority(C->Completion->getTypedText(), - S.getLangOptions(), + S.getLangOpts(), Context.getPreferredType()->isAnyPointerType()); } else if (C->Type) { CanQualType Expected @@ -2047,8 +2241,8 @@ void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S, Context.getKind() == CodeCompletionContext::CCC_MacroNameUse) { // Create a new code-completion string that just contains the // macro name, without its arguments. - CodeCompletionBuilder Builder(getAllocator(), CCP_CodePattern, - C->Availability); + CodeCompletionBuilder Builder(getAllocator(), getCodeCompletionTUInfo(), + CCP_CodePattern, C->Availability); Builder.AddTypedTextChunk(C->Completion->getTypedText()); CursorKind = CXCursor_NotImplemented; Priority = CCP_CodePattern; @@ -2089,7 +2283,7 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, CompletionTimer.setOutput("Code completion @ " + File + ":" + Twine(Line) + ":" + Twine(Column)); - llvm::IntrusiveRefCntPtr<CompilerInvocation> + IntrusiveRefCntPtr<CompilerInvocation> CCInvocation(new CompilerInvocation(*Invocation)); FrontendOptions &FrontendOpts = CCInvocation->getFrontendOpts(); @@ -2105,16 +2299,16 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, FrontendOpts.CodeCompletionAt.Column = Column; // Set the language options appropriately. - LangOpts = CCInvocation->getLangOpts(); + LangOpts = *CCInvocation->getLangOpts(); - llvm::OwningPtr<CompilerInstance> Clang(new CompilerInstance()); + OwningPtr<CompilerInstance> Clang(new CompilerInstance()); // Recover resources if we crash before exiting this method. llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance> CICleanup(Clang.get()); Clang->setInvocation(&*CCInvocation); - OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].second; + OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].File; // Set up diagnostics, capturing any diagnostics produced. Clang->setDiagnostics(&Diag); @@ -2140,9 +2334,9 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, assert(Clang->getFrontendOpts().Inputs.size() == 1 && "Invocation must have exactly one source file!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_AST && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_AST && "FIXME: AST inputs not yet supported here!"); - assert(Clang->getFrontendOpts().Inputs[0].first != IK_LLVM_IR && + assert(Clang->getFrontendOpts().Inputs[0].Kind != IK_LLVM_IR && "IR inputs not support here!"); @@ -2174,12 +2368,14 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, FrontendOpts.ShowGlobalSymbolsInCodeCompletion); Clang->setCodeCompletionConsumer(AugmentedConsumer); + Clang->getFrontendOpts().SkipFunctionBodies = true; + // If we have a precompiled preamble, try to use it. We only allow // the use of the precompiled preamble if we're if the completion // point is within the main file, after the end of the precompiled // preamble. llvm::MemoryBuffer *OverrideMainBuffer = 0; - if (!PreambleFile.empty()) { + if (!getPreambleFile(this).empty()) { using llvm::sys::FileStatus; llvm::sys::PathWithStatus CompleteFilePath(File); llvm::sys::PathWithStatus MainPath(OriginalSourceFile); @@ -2196,14 +2392,14 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, // make that override happen and introduce the preamble. PreprocessorOpts.DisableStatCache = true; StoredDiagnostics.insert(StoredDiagnostics.end(), - this->StoredDiagnostics.begin(), - this->StoredDiagnostics.begin() + NumStoredDiagnosticsFromDriver); + stored_diag_begin(), + stored_diag_afterDriver_begin()); if (OverrideMainBuffer) { PreprocessorOpts.addRemappedFile(OriginalSourceFile, OverrideMainBuffer); PreprocessorOpts.PrecompiledPreambleBytes.first = Preamble.size(); PreprocessorOpts.PrecompiledPreambleBytes.second = PreambleEndsAtStartOfLine; - PreprocessorOpts.ImplicitPCHInclude = PreambleFile; + PreprocessorOpts.ImplicitPCHInclude = getPreambleFile(this); PreprocessorOpts.DisablePCHValidation = true; OwnedBuffers.push_back(OverrideMainBuffer); @@ -2215,12 +2411,11 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, // Disable the preprocessing record PreprocessorOpts.DetailedRecord = false; - llvm::OwningPtr<SyntaxOnlyAction> Act; + OwningPtr<SyntaxOnlyAction> Act; Act.reset(new SyntaxOnlyAction); - if (Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0].second, - Clang->getFrontendOpts().Inputs[0].first)) { + if (Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) { if (OverrideMainBuffer) { - std::string ModName = PreambleFile; + std::string ModName = getPreambleFile(this); TranslateStoredDiagnostics(Clang->getModuleManager(), ModName, getSourceManager(), PreambleDiagnostics, StoredDiagnostics); @@ -2228,15 +2423,14 @@ void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column, Act->Execute(); Act->EndSourceFile(); } + + checkAndSanitizeDiags(StoredDiagnostics, getSourceManager()); } CXSaveError ASTUnit::Save(StringRef File) { - if (getDiagnostics().hasUnrecoverableErrorOccurred()) - return CXSaveError_TranslationErrors; - // Write to a temporary file and later rename it to the actual file, to avoid // possible race conditions. - llvm::SmallString<128> TempPath; + SmallString<128> TempPath; TempPath = File; TempPath += "-%%%%%%%%"; int fd; @@ -2250,10 +2444,12 @@ CXSaveError ASTUnit::Save(StringRef File) { serialize(Out); Out.close(); - if (Out.has_error()) + if (Out.has_error()) { + Out.clear_error(); return CXSaveError_Unknown; + } - if (llvm::error_code ec = llvm::sys::fs::rename(TempPath.str(), File)) { + if (llvm::sys::fs::rename(TempPath.str(), File)) { bool exists; llvm::sys::fs::remove(TempPath.str(), exists); return CXSaveError_Unknown; @@ -2263,14 +2459,13 @@ CXSaveError ASTUnit::Save(StringRef File) { } bool ASTUnit::serialize(raw_ostream &OS) { - if (getDiagnostics().hasErrorOccurred()) - return true; + bool hasErrors = getDiagnostics().hasErrorOccurred(); - std::vector<unsigned char> Buffer; + SmallString<128> Buffer; llvm::BitstreamWriter Stream(Buffer); ASTWriter Writer(Stream); // FIXME: Handle modules - Writer.WriteAST(getSema(), 0, std::string(), /*IsModule=*/false, ""); + Writer.WriteAST(getSema(), 0, std::string(), 0, "", hasErrors); // Write the generated bitstream to "Out". if (!Buffer.empty()) @@ -2303,7 +2498,7 @@ void ASTUnit::TranslateStoredDiagnostics( SmallVector<StoredDiagnostic, 4> Result; Result.reserve(Diags.size()); assert(MMan && "Don't have a module manager"); - serialization::Module *Mod = MMan->ModuleMgr.lookup(ModName); + serialization::ModuleFile *Mod = MMan->ModuleMgr.lookup(ModName); assert(Mod && "Don't have preamble module"); SLocRemap &Remap = Mod->SLocRemap; for (unsigned I = 0, N = Diags.size(); I != N; ++I) { @@ -2347,6 +2542,95 @@ void ASTUnit::TranslateStoredDiagnostics( Result.swap(Out); } +static inline bool compLocDecl(std::pair<unsigned, Decl *> L, + std::pair<unsigned, Decl *> R) { + return L.first < R.first; +} + +void ASTUnit::addFileLevelDecl(Decl *D) { + assert(D); + + // We only care about local declarations. + if (D->isFromASTFile()) + return; + + SourceManager &SM = *SourceMgr; + SourceLocation Loc = D->getLocation(); + if (Loc.isInvalid() || !SM.isLocalSourceLocation(Loc)) + return; + + // We only keep track of the file-level declarations of each file. + if (!D->getLexicalDeclContext()->isFileContext()) + return; + + SourceLocation FileLoc = SM.getFileLoc(Loc); + assert(SM.isLocalSourceLocation(FileLoc)); + FileID FID; + unsigned Offset; + llvm::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc); + if (FID.isInvalid()) + return; + + LocDeclsTy *&Decls = FileDecls[FID]; + if (!Decls) + Decls = new LocDeclsTy(); + + std::pair<unsigned, Decl *> LocDecl(Offset, D); + + if (Decls->empty() || Decls->back().first <= Offset) { + Decls->push_back(LocDecl); + return; + } + + LocDeclsTy::iterator + I = std::upper_bound(Decls->begin(), Decls->end(), LocDecl, compLocDecl); + + Decls->insert(I, LocDecl); +} + +void ASTUnit::findFileRegionDecls(FileID File, unsigned Offset, unsigned Length, + SmallVectorImpl<Decl *> &Decls) { + if (File.isInvalid()) + return; + + if (SourceMgr->isLoadedFileID(File)) { + assert(Ctx->getExternalSource() && "No external source!"); + return Ctx->getExternalSource()->FindFileRegionDecls(File, Offset, Length, + Decls); + } + + FileDeclsTy::iterator I = FileDecls.find(File); + if (I == FileDecls.end()) + return; + + LocDeclsTy &LocDecls = *I->second; + if (LocDecls.empty()) + return; + + LocDeclsTy::iterator + BeginIt = std::lower_bound(LocDecls.begin(), LocDecls.end(), + std::make_pair(Offset, (Decl*)0), compLocDecl); + if (BeginIt != LocDecls.begin()) + --BeginIt; + + // If we are pointing at a top-level decl inside an objc container, we need + // to backtrack until we find it otherwise we will fail to report that the + // region overlaps with an objc container. + while (BeginIt != LocDecls.begin() && + BeginIt->second->isTopLevelDeclInObjCContainer()) + --BeginIt; + + LocDeclsTy::iterator + EndIt = std::upper_bound(LocDecls.begin(), LocDecls.end(), + std::make_pair(Offset+Length, (Decl*)0), + compLocDecl); + if (EndIt != LocDecls.end()) + ++EndIt; + + for (LocDeclsTy::iterator DIt = BeginIt; DIt != EndIt; ++DIt) + Decls.push_back(DIt->second); +} + SourceLocation ASTUnit::getLocation(const FileEntry *File, unsigned Line, unsigned Col) const { const SourceManager &SM = getSourceManager(); @@ -2403,6 +2687,50 @@ SourceLocation ASTUnit::mapLocationToPreamble(SourceLocation Loc) { return Loc; } +bool ASTUnit::isInPreambleFileID(SourceLocation Loc) { + FileID FID; + if (SourceMgr) + FID = SourceMgr->getPreambleFileID(); + + if (Loc.isInvalid() || FID.isInvalid()) + return false; + + return SourceMgr->isInFileID(Loc, FID); +} + +bool ASTUnit::isInMainFileID(SourceLocation Loc) { + FileID FID; + if (SourceMgr) + FID = SourceMgr->getMainFileID(); + + if (Loc.isInvalid() || FID.isInvalid()) + return false; + + return SourceMgr->isInFileID(Loc, FID); +} + +SourceLocation ASTUnit::getEndOfPreambleFileID() { + FileID FID; + if (SourceMgr) + FID = SourceMgr->getPreambleFileID(); + + if (FID.isInvalid()) + return SourceLocation(); + + return SourceMgr->getLocForEndOfFile(FID); +} + +SourceLocation ASTUnit::getStartOfMainFileID() { + FileID FID; + if (SourceMgr) + FID = SourceMgr->getMainFileID(); + + if (FID.isInvalid()) + return SourceLocation(); + + return SourceMgr->getLocForStartOfFile(FID); +} + void ASTUnit::PreambleData::countLines() const { NumLines = 0; if (empty()) |
