1 //===--- CompilerInstance.cpp ---------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInstance.h"
11 #include "clang/AST/ASTConsumer.h"
12 #include "clang/AST/ASTContext.h"
13 #include "clang/AST/Decl.h"
14 #include "clang/Basic/Diagnostic.h"
15 #include "clang/Basic/FileManager.h"
16 #include "clang/Basic/SourceManager.h"
17 #include "clang/Basic/TargetInfo.h"
18 #include "clang/Basic/Version.h"
19 #include "clang/Frontend/ChainedDiagnosticConsumer.h"
20 #include "clang/Frontend/FrontendAction.h"
21 #include "clang/Frontend/FrontendActions.h"
22 #include "clang/Frontend/FrontendDiagnostic.h"
23 #include "clang/Frontend/LogDiagnosticPrinter.h"
24 #include "clang/Frontend/SerializedDiagnosticPrinter.h"
25 #include "clang/Frontend/TextDiagnosticPrinter.h"
26 #include "clang/Frontend/Utils.h"
27 #include "clang/Frontend/VerifyDiagnosticConsumer.h"
28 #include "clang/Lex/HeaderSearch.h"
29 #include "clang/Lex/PTHManager.h"
30 #include "clang/Lex/Preprocessor.h"
31 #include "clang/Sema/CodeCompleteConsumer.h"
32 #include "clang/Sema/Sema.h"
33 #include "clang/Serialization/ASTReader.h"
34 #include "llvm/ADT/Statistic.h"
35 #include "llvm/Config/config.h"
36 #include "llvm/Support/CrashRecoveryContext.h"
37 #include "llvm/Support/FileSystem.h"
38 #include "llvm/Support/Host.h"
39 #include "llvm/Support/LockFileManager.h"
40 #include "llvm/Support/MemoryBuffer.h"
41 #include "llvm/Support/Path.h"
42 #include "llvm/Support/Program.h"
43 #include "llvm/Support/Signals.h"
44 #include "llvm/Support/Timer.h"
45 #include "llvm/Support/raw_ostream.h"
46 #include "llvm/Support/system_error.h"
50 using namespace clang;
52 CompilerInstance::CompilerInstance()
53 : Invocation(new CompilerInvocation()), ModuleManager(0),
54 BuildGlobalModuleIndex(false), ModuleBuildFailed(false) {
57 CompilerInstance::~CompilerInstance() {
58 assert(OutputFiles.empty() && "Still output files in flight?");
61 void CompilerInstance::setInvocation(CompilerInvocation *Value) {
65 bool CompilerInstance::shouldBuildGlobalModuleIndex() const {
66 return (BuildGlobalModuleIndex ||
67 (ModuleManager && ModuleManager->isGlobalIndexUnavailable() &&
68 getFrontendOpts().GenerateGlobalModuleIndex)) &&
72 void CompilerInstance::setDiagnostics(DiagnosticsEngine *Value) {
76 void CompilerInstance::setTarget(TargetInfo *Value) {
80 void CompilerInstance::setFileManager(FileManager *Value) {
84 void CompilerInstance::setSourceManager(SourceManager *Value) {
88 void CompilerInstance::setPreprocessor(Preprocessor *Value) { PP = Value; }
90 void CompilerInstance::setASTContext(ASTContext *Value) { Context = Value; }
92 void CompilerInstance::setSema(Sema *S) {
96 void CompilerInstance::setASTConsumer(ASTConsumer *Value) {
97 Consumer.reset(Value);
100 void CompilerInstance::setCodeCompletionConsumer(CodeCompleteConsumer *Value) {
101 CompletionConsumer.reset(Value);
105 static void SetUpDiagnosticLog(DiagnosticOptions *DiagOpts,
106 const CodeGenOptions *CodeGenOpts,
107 DiagnosticsEngine &Diags) {
108 std::string ErrorInfo;
109 bool OwnsStream = false;
110 raw_ostream *OS = &llvm::errs();
111 if (DiagOpts->DiagnosticLogFile != "-") {
112 // Create the output stream.
113 llvm::raw_fd_ostream *FileOS(
114 new llvm::raw_fd_ostream(DiagOpts->DiagnosticLogFile.c_str(),
115 ErrorInfo, llvm::raw_fd_ostream::F_Append));
116 if (!ErrorInfo.empty()) {
117 Diags.Report(diag::warn_fe_cc_log_diagnostics_failure)
118 << DiagOpts->DiagnosticLogFile << ErrorInfo;
120 FileOS->SetUnbuffered();
121 FileOS->SetUseAtomicWrites(true);
127 // Chain in the diagnostic client which will log the diagnostics.
128 LogDiagnosticPrinter *Logger = new LogDiagnosticPrinter(*OS, DiagOpts,
131 Logger->setDwarfDebugFlags(CodeGenOpts->DwarfDebugFlags);
132 Diags.setClient(new ChainedDiagnosticConsumer(Diags.takeClient(), Logger));
135 static void SetupSerializedDiagnostics(DiagnosticOptions *DiagOpts,
136 DiagnosticsEngine &Diags,
137 StringRef OutputFile) {
138 std::string ErrorInfo;
139 OwningPtr<llvm::raw_fd_ostream> OS;
140 OS.reset(new llvm::raw_fd_ostream(OutputFile.str().c_str(), ErrorInfo,
141 llvm::raw_fd_ostream::F_Binary));
143 if (!ErrorInfo.empty()) {
144 Diags.Report(diag::warn_fe_serialized_diag_failure)
145 << OutputFile << ErrorInfo;
149 DiagnosticConsumer *SerializedConsumer =
150 clang::serialized_diags::create(OS.take(), DiagOpts);
153 Diags.setClient(new ChainedDiagnosticConsumer(Diags.takeClient(),
154 SerializedConsumer));
157 void CompilerInstance::createDiagnostics(DiagnosticConsumer *Client,
158 bool ShouldOwnClient,
159 bool ShouldCloneClient) {
160 Diagnostics = createDiagnostics(&getDiagnosticOpts(), Client,
161 ShouldOwnClient, ShouldCloneClient,
165 IntrusiveRefCntPtr<DiagnosticsEngine>
166 CompilerInstance::createDiagnostics(DiagnosticOptions *Opts,
167 DiagnosticConsumer *Client,
168 bool ShouldOwnClient,
169 bool ShouldCloneClient,
170 const CodeGenOptions *CodeGenOpts) {
171 IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
172 IntrusiveRefCntPtr<DiagnosticsEngine>
173 Diags(new DiagnosticsEngine(DiagID, Opts));
175 // Create the diagnostic client for reporting errors or for
176 // implementing -verify.
178 if (ShouldCloneClient)
179 Diags->setClient(Client->clone(*Diags), ShouldOwnClient);
181 Diags->setClient(Client, ShouldOwnClient);
183 Diags->setClient(new TextDiagnosticPrinter(llvm::errs(), Opts));
185 // Chain in -verify checker, if requested.
186 if (Opts->VerifyDiagnostics)
187 Diags->setClient(new VerifyDiagnosticConsumer(*Diags));
189 // Chain in -diagnostic-log-file dumper, if requested.
190 if (!Opts->DiagnosticLogFile.empty())
191 SetUpDiagnosticLog(Opts, CodeGenOpts, *Diags);
193 if (!Opts->DiagnosticSerializationFile.empty())
194 SetupSerializedDiagnostics(Opts, *Diags,
195 Opts->DiagnosticSerializationFile);
197 // Configure our handling of diagnostics.
198 ProcessWarningOptions(*Diags, *Opts);
205 void CompilerInstance::createFileManager() {
206 FileMgr = new FileManager(getFileSystemOpts());
211 void CompilerInstance::createSourceManager(FileManager &FileMgr) {
212 SourceMgr = new SourceManager(getDiagnostics(), FileMgr);
217 void CompilerInstance::createPreprocessor() {
218 const PreprocessorOptions &PPOpts = getPreprocessorOpts();
220 // Create a PTH manager if we are using some form of a token cache.
221 PTHManager *PTHMgr = 0;
222 if (!PPOpts.TokenCache.empty())
223 PTHMgr = PTHManager::Create(PPOpts.TokenCache, getDiagnostics());
225 // Create the Preprocessor.
226 HeaderSearch *HeaderInfo = new HeaderSearch(&getHeaderSearchOpts(),
231 PP = new Preprocessor(&getPreprocessorOpts(),
232 getDiagnostics(), getLangOpts(), &getTarget(),
233 getSourceManager(), *HeaderInfo, *this, PTHMgr,
234 /*OwnsHeaderSearch=*/true);
236 // Note that this is different then passing PTHMgr to Preprocessor's ctor.
237 // That argument is used as the IdentifierInfoLookup argument to
238 // IdentifierTable's ctor.
240 PTHMgr->setPreprocessor(&*PP);
241 PP->setPTHManager(PTHMgr);
244 if (PPOpts.DetailedRecord)
245 PP->createPreprocessingRecord();
247 InitializePreprocessor(*PP, PPOpts, getHeaderSearchOpts(), getFrontendOpts());
249 PP->setPreprocessedOutput(getPreprocessorOutputOpts().ShowCPP);
251 // Set up the module path, including the hash for the
252 // module-creation options.
253 SmallString<256> SpecificModuleCache(
254 getHeaderSearchOpts().ModuleCachePath);
255 if (!getHeaderSearchOpts().DisableModuleHash)
256 llvm::sys::path::append(SpecificModuleCache,
257 getInvocation().getModuleHash());
258 PP->getHeaderSearchInfo().setModuleCachePath(SpecificModuleCache);
260 // Handle generating dependencies, if requested.
261 const DependencyOutputOptions &DepOpts = getDependencyOutputOpts();
262 if (!DepOpts.OutputFile.empty())
263 AttachDependencyFileGen(*PP, DepOpts);
264 if (!DepOpts.DOTOutputFile.empty())
265 AttachDependencyGraphGen(*PP, DepOpts.DOTOutputFile,
266 getHeaderSearchOpts().Sysroot);
269 // Handle generating header include information, if requested.
270 if (DepOpts.ShowHeaderIncludes)
271 AttachHeaderIncludeGen(*PP);
272 if (!DepOpts.HeaderIncludeOutputFile.empty()) {
273 StringRef OutputPath = DepOpts.HeaderIncludeOutputFile;
274 if (OutputPath == "-")
276 AttachHeaderIncludeGen(*PP, /*ShowAllHeaders=*/true, OutputPath,
277 /*ShowDepth=*/false);
283 void CompilerInstance::createASTContext() {
284 Preprocessor &PP = getPreprocessor();
285 Context = new ASTContext(getLangOpts(), PP.getSourceManager(),
286 &getTarget(), PP.getIdentifierTable(),
287 PP.getSelectorTable(), PP.getBuiltinInfo(),
288 /*size_reserve=*/ 0);
293 void CompilerInstance::createPCHExternalASTSource(StringRef Path,
294 bool DisablePCHValidation,
295 bool AllowPCHWithCompilerErrors,
296 void *DeserializationListener){
297 OwningPtr<ExternalASTSource> Source;
298 bool Preamble = getPreprocessorOpts().PrecompiledPreambleBytes.first != 0;
299 Source.reset(createPCHExternalASTSource(Path, getHeaderSearchOpts().Sysroot,
300 DisablePCHValidation,
301 AllowPCHWithCompilerErrors,
302 getPreprocessor(), getASTContext(),
303 DeserializationListener,
305 getFrontendOpts().UseGlobalModuleIndex));
306 ModuleManager = static_cast<ASTReader*>(Source.get());
307 getASTContext().setExternalSource(Source);
311 CompilerInstance::createPCHExternalASTSource(StringRef Path,
312 const std::string &Sysroot,
313 bool DisablePCHValidation,
314 bool AllowPCHWithCompilerErrors,
317 void *DeserializationListener,
319 bool UseGlobalModuleIndex) {
320 OwningPtr<ASTReader> Reader;
321 Reader.reset(new ASTReader(PP, Context,
322 Sysroot.empty() ? "" : Sysroot.c_str(),
323 DisablePCHValidation,
324 AllowPCHWithCompilerErrors,
325 UseGlobalModuleIndex));
327 Reader->setDeserializationListener(
328 static_cast<ASTDeserializationListener *>(DeserializationListener));
329 switch (Reader->ReadAST(Path,
330 Preamble ? serialization::MK_Preamble
331 : serialization::MK_PCH,
333 ASTReader::ARR_None)) {
334 case ASTReader::Success:
335 // Set the predefines buffer as suggested by the PCH reader. Typically, the
336 // predefines buffer will be empty.
337 PP.setPredefines(Reader->getSuggestedPredefines());
338 return Reader.take();
340 case ASTReader::Failure:
341 // Unrecoverable failure: don't even try to process the input file.
344 case ASTReader::Missing:
345 case ASTReader::OutOfDate:
346 case ASTReader::VersionMismatch:
347 case ASTReader::ConfigurationMismatch:
348 case ASTReader::HadErrors:
349 // No suitable PCH file could be found. Return an error.
358 static bool EnableCodeCompletion(Preprocessor &PP,
359 const std::string &Filename,
362 // Tell the source manager to chop off the given file at a specific
364 const FileEntry *Entry = PP.getFileManager().getFile(Filename);
366 PP.getDiagnostics().Report(diag::err_fe_invalid_code_complete_file)
371 // Truncate the named file at the given line/column.
372 PP.SetCodeCompletionPoint(Entry, Line, Column);
376 void CompilerInstance::createCodeCompletionConsumer() {
377 const ParsedSourceLocation &Loc = getFrontendOpts().CodeCompletionAt;
378 if (!CompletionConsumer) {
379 setCodeCompletionConsumer(
380 createCodeCompletionConsumer(getPreprocessor(),
381 Loc.FileName, Loc.Line, Loc.Column,
382 getFrontendOpts().CodeCompleteOpts,
384 if (!CompletionConsumer)
386 } else if (EnableCodeCompletion(getPreprocessor(), Loc.FileName,
387 Loc.Line, Loc.Column)) {
388 setCodeCompletionConsumer(0);
392 if (CompletionConsumer->isOutputBinary() &&
393 llvm::sys::Program::ChangeStdoutToBinary()) {
394 getPreprocessor().getDiagnostics().Report(diag::err_fe_stdout_binary);
395 setCodeCompletionConsumer(0);
399 void CompilerInstance::createFrontendTimer() {
400 FrontendTimer.reset(new llvm::Timer("Clang front-end timer"));
403 CodeCompleteConsumer *
404 CompilerInstance::createCodeCompletionConsumer(Preprocessor &PP,
405 const std::string &Filename,
408 const CodeCompleteOptions &Opts,
410 if (EnableCodeCompletion(PP, Filename, Line, Column))
413 // Set up the creation routine for code-completion.
414 return new PrintingCodeCompleteConsumer(Opts, OS);
417 void CompilerInstance::createSema(TranslationUnitKind TUKind,
418 CodeCompleteConsumer *CompletionConsumer) {
419 TheSema.reset(new Sema(getPreprocessor(), getASTContext(), getASTConsumer(),
420 TUKind, CompletionConsumer));
425 void CompilerInstance::addOutputFile(const OutputFile &OutFile) {
426 assert(OutFile.OS && "Attempt to add empty stream to output list!");
427 OutputFiles.push_back(OutFile);
430 void CompilerInstance::clearOutputFiles(bool EraseFiles) {
431 for (std::list<OutputFile>::iterator
432 it = OutputFiles.begin(), ie = OutputFiles.end(); it != ie; ++it) {
434 if (!it->TempFilename.empty()) {
437 llvm::sys::fs::remove(it->TempFilename, existed);
439 SmallString<128> NewOutFile(it->Filename);
441 // If '-working-directory' was passed, the output filename should be
443 FileMgr->FixupRelativePath(NewOutFile);
444 if (llvm::error_code ec = llvm::sys::fs::rename(it->TempFilename,
446 getDiagnostics().Report(diag::err_unable_to_rename_temp)
447 << it->TempFilename << it->Filename << ec.message();
450 llvm::sys::fs::remove(it->TempFilename, existed);
453 } else if (!it->Filename.empty() && EraseFiles)
454 llvm::sys::Path(it->Filename).eraseFromDisk();
460 llvm::raw_fd_ostream *
461 CompilerInstance::createDefaultOutputFile(bool Binary,
463 StringRef Extension) {
464 return createOutputFile(getFrontendOpts().OutputFile, Binary,
465 /*RemoveFileOnSignal=*/true, InFile, Extension,
466 /*UseTemporary=*/true);
469 llvm::raw_fd_ostream *
470 CompilerInstance::createOutputFile(StringRef OutputPath,
471 bool Binary, bool RemoveFileOnSignal,
475 bool CreateMissingDirectories) {
476 std::string Error, OutputPathName, TempPathName;
477 llvm::raw_fd_ostream *OS = createOutputFile(OutputPath, Error, Binary,
481 CreateMissingDirectories,
485 getDiagnostics().Report(diag::err_fe_unable_to_open_output)
486 << OutputPath << Error;
490 // Add the output file -- but don't try to remove "-", since this means we are
492 addOutputFile(OutputFile((OutputPathName != "-") ? OutputPathName : "",
498 llvm::raw_fd_ostream *
499 CompilerInstance::createOutputFile(StringRef OutputPath,
502 bool RemoveFileOnSignal,
506 bool CreateMissingDirectories,
507 std::string *ResultPathName,
508 std::string *TempPathName) {
509 assert((!CreateMissingDirectories || UseTemporary) &&
510 "CreateMissingDirectories is only allowed when using temporary files");
512 std::string OutFile, TempFile;
513 if (!OutputPath.empty()) {
514 OutFile = OutputPath;
515 } else if (InFile == "-") {
517 } else if (!Extension.empty()) {
518 llvm::sys::Path Path(InFile);
520 Path.appendSuffix(Extension);
521 OutFile = Path.str();
526 OwningPtr<llvm::raw_fd_ostream> OS;
529 if (UseTemporary && OutFile != "-") {
530 // Only create the temporary if the parent directory exists (or create
531 // missing directories is true) and we can actually write to OutPath,
532 // otherwise we want to fail early.
533 SmallString<256> AbsPath(OutputPath);
534 llvm::sys::fs::make_absolute(AbsPath);
535 llvm::sys::Path OutPath(AbsPath);
536 bool ParentExists = false;
537 if (llvm::sys::fs::exists(llvm::sys::path::parent_path(AbsPath.str()),
539 ParentExists = false;
541 if ((CreateMissingDirectories || ParentExists) &&
542 ((llvm::sys::fs::exists(AbsPath.str(), Exists) || !Exists) ||
543 (OutPath.isRegularFile() && OutPath.canWrite()))) {
544 // Create a temporary file.
545 SmallString<128> TempPath;
547 TempPath += "-%%%%%%%%";
549 if (llvm::sys::fs::unique_file(TempPath.str(), fd, TempPath,
550 /*makeAbsolute=*/false, 0664)
551 == llvm::errc::success) {
552 OS.reset(new llvm::raw_fd_ostream(fd, /*shouldClose=*/true));
553 OSFile = TempFile = TempPath.str();
561 new llvm::raw_fd_ostream(OSFile.c_str(), Error,
562 (Binary ? llvm::raw_fd_ostream::F_Binary : 0)));
567 // Make sure the out stream file gets removed if we crash.
568 if (RemoveFileOnSignal)
569 llvm::sys::RemoveFileOnSignal(llvm::sys::Path(OSFile));
572 *ResultPathName = OutFile;
574 *TempPathName = TempFile;
579 // Initialization Utilities
581 bool CompilerInstance::InitializeSourceManager(const FrontendInputFile &Input){
582 return InitializeSourceManager(Input, getDiagnostics(),
583 getFileManager(), getSourceManager(),
587 bool CompilerInstance::InitializeSourceManager(const FrontendInputFile &Input,
588 DiagnosticsEngine &Diags,
589 FileManager &FileMgr,
590 SourceManager &SourceMgr,
591 const FrontendOptions &Opts) {
592 SrcMgr::CharacteristicKind
593 Kind = Input.isSystem() ? SrcMgr::C_System : SrcMgr::C_User;
595 if (Input.isBuffer()) {
596 SourceMgr.createMainFileIDForMemBuffer(Input.getBuffer(), Kind);
597 assert(!SourceMgr.getMainFileID().isInvalid() &&
598 "Couldn't establish MainFileID!");
602 StringRef InputFile = Input.getFile();
604 // Figure out where to get and map in the main file.
605 if (InputFile != "-") {
606 const FileEntry *File = FileMgr.getFile(InputFile);
608 Diags.Report(diag::err_fe_error_reading) << InputFile;
612 // The natural SourceManager infrastructure can't currently handle named
613 // pipes, but we would at least like to accept them for the main
614 // file. Detect them here, read them with the more generic MemoryBuffer
615 // function, and simply override their contents as we do for STDIN.
616 if (File->isNamedPipe()) {
617 OwningPtr<llvm::MemoryBuffer> MB;
618 if (llvm::error_code ec = llvm::MemoryBuffer::getFile(InputFile, MB)) {
619 Diags.Report(diag::err_cannot_open_file) << InputFile << ec.message();
623 // Create a new virtual file that will have the correct size.
624 File = FileMgr.getVirtualFile(InputFile, MB->getBufferSize(), 0);
625 SourceMgr.overrideFileContents(File, MB.take());
628 SourceMgr.createMainFileID(File, Kind);
630 OwningPtr<llvm::MemoryBuffer> SB;
631 if (llvm::MemoryBuffer::getSTDIN(SB)) {
632 // FIXME: Give ec.message() in this diag.
633 Diags.Report(diag::err_fe_error_reading_stdin);
636 const FileEntry *File = FileMgr.getVirtualFile(SB->getBufferIdentifier(),
637 SB->getBufferSize(), 0);
638 SourceMgr.createMainFileID(File, Kind);
639 SourceMgr.overrideFileContents(File, SB.take());
642 assert(!SourceMgr.getMainFileID().isInvalid() &&
643 "Couldn't establish MainFileID!");
647 // High-Level Operations
649 bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
650 assert(hasDiagnostics() && "Diagnostics engine is not initialized!");
651 assert(!getFrontendOpts().ShowHelp && "Client must handle '-help'!");
652 assert(!getFrontendOpts().ShowVersion && "Client must handle '-version'!");
654 // FIXME: Take this as an argument, once all the APIs we used have moved to
655 // taking it as an input instead of hard-coding llvm::errs.
656 raw_ostream &OS = llvm::errs();
658 // Create the target instance.
659 setTarget(TargetInfo::CreateTargetInfo(getDiagnostics(), &getTargetOpts()));
663 // Inform the target of the language options.
665 // FIXME: We shouldn't need to do this, the target should be immutable once
666 // created. This complexity should be lifted elsewhere.
667 getTarget().setForcedLangOptions(getLangOpts());
669 // rewriter project will change target built-in bool type from its default.
670 if (getFrontendOpts().ProgramAction == frontend::RewriteObjC)
671 getTarget().noSignedCharForObjCBool();
673 // Validate/process some options.
674 if (getHeaderSearchOpts().Verbose)
675 OS << "clang -cc1 version " CLANG_VERSION_STRING
676 << " based upon " << PACKAGE_STRING
677 << " default target " << llvm::sys::getDefaultTargetTriple() << "\n";
679 if (getFrontendOpts().ShowTimers)
680 createFrontendTimer();
682 if (getFrontendOpts().ShowStats)
683 llvm::EnableStatistics();
685 for (unsigned i = 0, e = getFrontendOpts().Inputs.size(); i != e; ++i) {
686 // Reset the ID tables if we are reusing the SourceManager.
687 if (hasSourceManager())
688 getSourceManager().clearIDTables();
690 if (Act.BeginSourceFile(*this, getFrontendOpts().Inputs[i])) {
696 // Notify the diagnostic client that all files were processed.
697 getDiagnostics().getClient()->finish();
699 if (getDiagnosticOpts().ShowCarets) {
700 // We can have multiple diagnostics sharing one diagnostic client.
701 // Get the total number of warnings/errors from the client.
702 unsigned NumWarnings = getDiagnostics().getClient()->getNumWarnings();
703 unsigned NumErrors = getDiagnostics().getClient()->getNumErrors();
706 OS << NumWarnings << " warning" << (NumWarnings == 1 ? "" : "s");
707 if (NumWarnings && NumErrors)
710 OS << NumErrors << " error" << (NumErrors == 1 ? "" : "s");
711 if (NumWarnings || NumErrors)
712 OS << " generated.\n";
715 if (getFrontendOpts().ShowStats && hasFileManager()) {
716 getFileManager().PrintStats();
720 return !getDiagnostics().getClient()->getNumErrors();
723 /// \brief Determine the appropriate source input kind based on language
725 static InputKind getSourceInputKindFromOptions(const LangOptions &LangOpts) {
731 return LangOpts.CPlusPlus? IK_ObjCXX : IK_ObjC;
732 return LangOpts.CPlusPlus? IK_CXX : IK_C;
736 struct CompileModuleMapData {
737 CompilerInstance &Instance;
738 GenerateModuleAction &CreateModuleAction;
742 /// \brief Helper function that executes the module-generating action under
743 /// a crash recovery context.
744 static void doCompileMapModule(void *UserData) {
745 CompileModuleMapData &Data
746 = *reinterpret_cast<CompileModuleMapData *>(UserData);
747 Data.Instance.ExecuteAction(Data.CreateModuleAction);
751 /// \brief Function object that checks with the given macro definition should
752 /// be removed, because it is one of the ignored macros.
753 class RemoveIgnoredMacro {
754 const HeaderSearchOptions &HSOpts;
757 explicit RemoveIgnoredMacro(const HeaderSearchOptions &HSOpts)
760 bool operator()(const std::pair<std::string, bool> &def) const {
761 StringRef MacroDef = def.first;
762 return HSOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first) > 0;
767 /// \brief Compile a module file for the given module, using the options
768 /// provided by the importing compiler instance.
769 static void compileModule(CompilerInstance &ImportingInstance,
770 SourceLocation ImportLoc,
772 StringRef ModuleFileName) {
773 llvm::LockFileManager Locked(ModuleFileName);
775 case llvm::LockFileManager::LFS_Error:
778 case llvm::LockFileManager::LFS_Owned:
779 // We're responsible for building the module ourselves. Do so below.
782 case llvm::LockFileManager::LFS_Shared:
783 // Someone else is responsible for building the module. Wait for them to
785 Locked.waitForUnlock();
790 = ImportingInstance.getPreprocessor().getHeaderSearchInfo().getModuleMap();
792 // Construct a compiler invocation for creating this module.
793 IntrusiveRefCntPtr<CompilerInvocation> Invocation
794 (new CompilerInvocation(ImportingInstance.getInvocation()));
796 PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
798 // For any options that aren't intended to affect how a module is built,
799 // reset them to their default values.
800 Invocation->getLangOpts()->resetNonModularOptions();
801 PPOpts.resetNonModularOptions();
803 // Remove any macro definitions that are explicitly ignored by the module.
804 // They aren't supposed to affect how the module is built anyway.
805 const HeaderSearchOptions &HSOpts = Invocation->getHeaderSearchOpts();
806 PPOpts.Macros.erase(std::remove_if(PPOpts.Macros.begin(), PPOpts.Macros.end(),
807 RemoveIgnoredMacro(HSOpts)),
808 PPOpts.Macros.end());
811 // Note the name of the module we're building.
812 Invocation->getLangOpts()->CurrentModule = Module->getTopLevelModuleName();
814 // Make sure that the failed-module structure has been allocated in
815 // the importing instance, and propagate the pointer to the newly-created
817 PreprocessorOptions &ImportingPPOpts
818 = ImportingInstance.getInvocation().getPreprocessorOpts();
819 if (!ImportingPPOpts.FailedModules)
820 ImportingPPOpts.FailedModules = new PreprocessorOptions::FailedModulesSet;
821 PPOpts.FailedModules = ImportingPPOpts.FailedModules;
823 // If there is a module map file, build the module using the module map.
824 // Set up the inputs/outputs so that we build the module from its umbrella
826 FrontendOptions &FrontendOpts = Invocation->getFrontendOpts();
827 FrontendOpts.OutputFile = ModuleFileName.str();
828 FrontendOpts.DisableFree = false;
829 FrontendOpts.GenerateGlobalModuleIndex = false;
830 FrontendOpts.Inputs.clear();
831 InputKind IK = getSourceInputKindFromOptions(*Invocation->getLangOpts());
833 // Get or create the module map that we'll use to build this module.
834 SmallString<128> TempModuleMapFileName;
835 if (const FileEntry *ModuleMapFile
836 = ModMap.getContainingModuleMapFile(Module)) {
837 // Use the module map where this module resides.
838 FrontendOpts.Inputs.push_back(FrontendInputFile(ModuleMapFile->getName(),
841 // Create a temporary module map file.
842 TempModuleMapFileName = Module->Name;
843 TempModuleMapFileName += "-%%%%%%%%.map";
845 if (llvm::sys::fs::unique_file(TempModuleMapFileName.str(), FD,
846 TempModuleMapFileName,
847 /*makeAbsolute=*/true)
848 != llvm::errc::success) {
849 ImportingInstance.getDiagnostics().Report(diag::err_module_map_temp_file)
850 << TempModuleMapFileName;
853 // Print the module map to this file.
854 llvm::raw_fd_ostream OS(FD, /*shouldClose=*/true);
856 FrontendOpts.Inputs.push_back(
857 FrontendInputFile(TempModuleMapFileName.str().str(), IK));
860 // Don't free the remapped file buffers; they are owned by our caller.
861 PPOpts.RetainRemappedFileBuffers = true;
863 Invocation->getDiagnosticOpts().VerifyDiagnostics = 0;
864 assert(ImportingInstance.getInvocation().getModuleHash() ==
865 Invocation->getModuleHash() && "Module hash mismatch!");
867 // Construct a compiler instance that will be used to actually create the
869 CompilerInstance Instance;
870 Instance.setInvocation(&*Invocation);
871 Instance.createDiagnostics(&ImportingInstance.getDiagnosticClient(),
872 /*ShouldOwnClient=*/true,
873 /*ShouldCloneClient=*/true);
875 // Note that this module is part of the module build stack, so that we
876 // can detect cycles in the module graph.
877 Instance.createFileManager(); // FIXME: Adopt file manager from importer?
878 Instance.createSourceManager(Instance.getFileManager());
879 SourceManager &SourceMgr = Instance.getSourceManager();
880 SourceMgr.setModuleBuildStack(
881 ImportingInstance.getSourceManager().getModuleBuildStack());
882 SourceMgr.pushModuleBuildStack(Module->getTopLevelModuleName(),
883 FullSourceLoc(ImportLoc, ImportingInstance.getSourceManager()));
886 // Construct a module-generating action.
887 GenerateModuleAction CreateModuleAction;
889 // Execute the action to actually build the module in-place. Use a separate
890 // thread so that we get a stack large enough.
891 const unsigned ThreadStackSize = 8 << 20;
892 llvm::CrashRecoveryContext CRC;
893 CompileModuleMapData Data = { Instance, CreateModuleAction };
894 CRC.RunSafelyOnThread(&doCompileMapModule, &Data, ThreadStackSize);
896 // Delete the temporary module map file.
897 // FIXME: Even though we're executing under crash protection, it would still
898 // be nice to do this with RemoveFileOnSignal when we can. However, that
899 // doesn't make sense for all clients, so clean this up manually.
900 Instance.clearOutputFiles(/*EraseFiles=*/true);
901 if (!TempModuleMapFileName.empty())
902 llvm::sys::Path(TempModuleMapFileName).eraseFromDisk();
904 // We've rebuilt a module. If we're allowed to generate or update the global
905 // module index, record that fact in the importing compiler instance.
906 if (ImportingInstance.getFrontendOpts().GenerateGlobalModuleIndex) {
907 ImportingInstance.setBuildGlobalModuleIndex(true);
911 /// \brief Diagnose differences between the current definition of the given
912 /// configuration macro and the definition provided on the command line.
913 static void checkConfigMacro(Preprocessor &PP, StringRef ConfigMacro,
914 Module *Mod, SourceLocation ImportLoc) {
915 IdentifierInfo *Id = PP.getIdentifierInfo(ConfigMacro);
916 SourceManager &SourceMgr = PP.getSourceManager();
918 // If this identifier has never had a macro definition, then it could
920 if (!Id->hadMacroDefinition())
923 // If this identifier does not currently have a macro definition,
924 // check whether it had one on the command line.
925 if (!Id->hasMacroDefinition()) {
926 MacroDirective::DefInfo LatestDef =
927 PP.getMacroDirectiveHistory(Id)->getDefinition();
928 for (MacroDirective::DefInfo Def = LatestDef; Def;
929 Def = Def.getPreviousDefinition()) {
930 FileID FID = SourceMgr.getFileID(Def.getLocation());
934 // We only care about the predefines buffer.
935 if (FID != PP.getPredefinesFileID())
938 // This macro was defined on the command line, then #undef'd later.
940 PP.Diag(ImportLoc, diag::warn_module_config_macro_undef)
941 << true << ConfigMacro << Mod->getFullModuleName();
942 if (LatestDef.isUndefined())
943 PP.Diag(LatestDef.getUndefLocation(), diag::note_module_def_undef_here)
948 // Okay: no definition in the predefines buffer.
952 // This identifier has a macro definition. Check whether we had a definition
953 // on the command line.
954 MacroDirective::DefInfo LatestDef =
955 PP.getMacroDirectiveHistory(Id)->getDefinition();
956 MacroDirective::DefInfo PredefinedDef;
957 for (MacroDirective::DefInfo Def = LatestDef; Def;
958 Def = Def.getPreviousDefinition()) {
959 FileID FID = SourceMgr.getFileID(Def.getLocation());
963 // We only care about the predefines buffer.
964 if (FID != PP.getPredefinesFileID())
971 // If there was no definition for this macro in the predefines buffer,
973 if (!PredefinedDef ||
974 (!PredefinedDef.getLocation().isValid() &&
975 PredefinedDef.getUndefLocation().isValid())) {
976 PP.Diag(ImportLoc, diag::warn_module_config_macro_undef)
977 << false << ConfigMacro << Mod->getFullModuleName();
978 PP.Diag(LatestDef.getLocation(), diag::note_module_def_undef_here)
983 // If the current macro definition is the same as the predefined macro
984 // definition, it's okay.
985 if (LatestDef.getMacroInfo() == PredefinedDef.getMacroInfo() ||
986 LatestDef.getMacroInfo()->isIdenticalTo(*PredefinedDef.getMacroInfo(),PP,
987 /*Syntactically=*/true))
990 // The macro definitions differ.
991 PP.Diag(ImportLoc, diag::warn_module_config_macro_undef)
992 << false << ConfigMacro << Mod->getFullModuleName();
993 PP.Diag(LatestDef.getLocation(), diag::note_module_def_undef_here)
997 /// \brief Write a new timestamp file with the given path.
998 static void writeTimestampFile(StringRef TimestampFile) {
999 std::string ErrorInfo;
1000 llvm::raw_fd_ostream Out(TimestampFile.str().c_str(), ErrorInfo,
1001 llvm::raw_fd_ostream::F_Binary);
1004 /// \brief Prune the module cache of modules that haven't been accessed in
1006 static void pruneModuleCache(const HeaderSearchOptions &HSOpts) {
1007 struct stat StatBuf;
1008 llvm::SmallString<128> TimestampFile;
1009 TimestampFile = HSOpts.ModuleCachePath;
1010 llvm::sys::path::append(TimestampFile, "modules.timestamp");
1012 // Try to stat() the timestamp file.
1013 if (::stat(TimestampFile.c_str(), &StatBuf)) {
1014 // If the timestamp file wasn't there, create one now.
1015 if (errno == ENOENT) {
1016 writeTimestampFile(TimestampFile);
1021 // Check whether the time stamp is older than our pruning interval.
1022 // If not, do nothing.
1023 time_t TimeStampModTime = StatBuf.st_mtime;
1024 time_t CurrentTime = time(0);
1025 if (CurrentTime - TimeStampModTime <= time_t(HSOpts.ModuleCachePruneInterval))
1028 // Write a new timestamp file so that nobody else attempts to prune.
1029 // There is a benign race condition here, if two Clang instances happen to
1030 // notice at the same time that the timestamp is out-of-date.
1031 writeTimestampFile(TimestampFile);
1033 // Walk the entire module cache, looking for unused module files and module
1035 llvm::error_code EC;
1036 SmallString<128> ModuleCachePathNative;
1037 llvm::sys::path::native(HSOpts.ModuleCachePath, ModuleCachePathNative);
1038 for (llvm::sys::fs::directory_iterator
1039 Dir(ModuleCachePathNative.str(), EC), DirEnd;
1040 Dir != DirEnd && !EC; Dir.increment(EC)) {
1041 // If we don't have a directory, there's nothing to look into.
1043 if (llvm::sys::fs::is_directory(Dir->path(), IsDirectory) || !IsDirectory)
1046 // Walk all of the files within this directory.
1047 bool RemovedAllFiles = true;
1048 for (llvm::sys::fs::directory_iterator File(Dir->path(), EC), FileEnd;
1049 File != FileEnd && !EC; File.increment(EC)) {
1050 // We only care about module and global module index files.
1051 if (llvm::sys::path::extension(File->path()) != ".pcm" &&
1052 llvm::sys::path::filename(File->path()) != "modules.idx") {
1053 RemovedAllFiles = false;
1057 // Look at this file. If we can't stat it, there's nothing interesting
1059 if (::stat(File->path().c_str(), &StatBuf)) {
1060 RemovedAllFiles = false;
1064 // If the file has been used recently enough, leave it there.
1065 time_t FileAccessTime = StatBuf.st_atime;
1066 if (CurrentTime - FileAccessTime <=
1067 time_t(HSOpts.ModuleCachePruneAfter)) {
1068 RemovedAllFiles = false;
1074 if (llvm::sys::fs::remove(File->path(), Existed) || !Existed) {
1075 RemovedAllFiles = false;
1079 // If we removed all of the files in the directory, remove the directory
1081 if (RemovedAllFiles) {
1083 llvm::sys::fs::remove(Dir->path(), Existed);
1089 CompilerInstance::loadModule(SourceLocation ImportLoc,
1091 Module::NameVisibilityKind Visibility,
1092 bool IsInclusionDirective) {
1093 // If we've already handled this import, just return the cached result.
1094 // This one-element cache is important to eliminate redundant diagnostics
1095 // when both the preprocessor and parser see the same import declaration.
1096 if (!ImportLoc.isInvalid() && LastModuleImportLoc == ImportLoc) {
1097 // Make the named module visible.
1098 if (LastModuleImportResult)
1099 ModuleManager->makeModuleVisible(LastModuleImportResult, Visibility,
1100 ImportLoc, /*Complain=*/false);
1101 return LastModuleImportResult;
1104 // Determine what file we're searching from.
1105 StringRef ModuleName = Path[0].first->getName();
1106 SourceLocation ModuleNameLoc = Path[0].second;
1108 clang::Module *Module = 0;
1110 // If we don't already have information on this module, load the module now.
1111 llvm::DenseMap<const IdentifierInfo *, clang::Module *>::iterator Known
1112 = KnownModules.find(Path[0].first);
1113 if (Known != KnownModules.end()) {
1114 // Retrieve the cached top-level module.
1115 Module = Known->second;
1116 } else if (ModuleName == getLangOpts().CurrentModule) {
1117 // This is the module we're building.
1118 Module = PP->getHeaderSearchInfo().getModuleMap().findModule(ModuleName);
1119 Known = KnownModules.insert(std::make_pair(Path[0].first, Module)).first;
1121 // Search for a module with the given name.
1122 Module = PP->getHeaderSearchInfo().lookupModule(ModuleName);
1123 std::string ModuleFileName;
1125 ModuleFileName = PP->getHeaderSearchInfo().getModuleFileName(Module);
1127 ModuleFileName = PP->getHeaderSearchInfo().getModuleFileName(ModuleName);
1129 // If we don't already have an ASTReader, create one now.
1130 if (!ModuleManager) {
1131 if (!hasASTContext())
1134 // If we're not recursively building a module, check whether we
1135 // need to prune the module cache.
1136 if (getSourceManager().getModuleBuildStack().empty() &&
1137 getHeaderSearchOpts().ModuleCachePruneInterval > 0 &&
1138 getHeaderSearchOpts().ModuleCachePruneAfter > 0) {
1139 pruneModuleCache(getHeaderSearchOpts());
1142 std::string Sysroot = getHeaderSearchOpts().Sysroot;
1143 const PreprocessorOptions &PPOpts = getPreprocessorOpts();
1144 ModuleManager = new ASTReader(getPreprocessor(), *Context,
1145 Sysroot.empty() ? "" : Sysroot.c_str(),
1146 PPOpts.DisablePCHValidation,
1147 /*AllowASTWithCompilerErrors=*/false,
1148 getFrontendOpts().UseGlobalModuleIndex);
1149 if (hasASTConsumer()) {
1150 ModuleManager->setDeserializationListener(
1151 getASTConsumer().GetASTDeserializationListener());
1152 getASTContext().setASTMutationListener(
1153 getASTConsumer().GetASTMutationListener());
1155 OwningPtr<ExternalASTSource> Source;
1156 Source.reset(ModuleManager);
1157 getASTContext().setExternalSource(Source);
1159 ModuleManager->InitializeSema(getSema());
1160 if (hasASTConsumer())
1161 ModuleManager->StartTranslationUnit(&getASTConsumer());
1164 // Try to load the module file.
1165 unsigned ARRFlags = ASTReader::ARR_OutOfDate | ASTReader::ARR_Missing;
1166 switch (ModuleManager->ReadAST(ModuleFileName, serialization::MK_Module,
1167 ImportLoc, ARRFlags)) {
1168 case ASTReader::Success:
1171 case ASTReader::OutOfDate: {
1172 // The module file is out-of-date. Remove it, then rebuild it.
1174 llvm::sys::fs::remove(ModuleFileName, Existed);
1176 // Fall through to build the module again.
1178 case ASTReader::Missing: {
1179 // The module file is (now) missing. Build it.
1181 // If we don't have a module, we don't know how to build the module file.
1182 // Complain and return.
1184 getDiagnostics().Report(ModuleNameLoc, diag::err_module_not_found)
1186 << SourceRange(ImportLoc, ModuleNameLoc);
1187 ModuleBuildFailed = true;
1188 return ModuleLoadResult();
1191 // Check whether there is a cycle in the module graph.
1192 ModuleBuildStack ModPath = getSourceManager().getModuleBuildStack();
1193 ModuleBuildStack::iterator Pos = ModPath.begin(), PosEnd = ModPath.end();
1194 for (; Pos != PosEnd; ++Pos) {
1195 if (Pos->first == ModuleName)
1199 if (Pos != PosEnd) {
1200 SmallString<256> CyclePath;
1201 for (; Pos != PosEnd; ++Pos) {
1202 CyclePath += Pos->first;
1203 CyclePath += " -> ";
1205 CyclePath += ModuleName;
1207 getDiagnostics().Report(ModuleNameLoc, diag::err_module_cycle)
1208 << ModuleName << CyclePath;
1209 return ModuleLoadResult();
1212 // Check whether we have already attempted to build this module (but
1214 if (getPreprocessorOpts().FailedModules &&
1215 getPreprocessorOpts().FailedModules->hasAlreadyFailed(ModuleName)) {
1216 getDiagnostics().Report(ModuleNameLoc, diag::err_module_not_built)
1218 << SourceRange(ImportLoc, ModuleNameLoc);
1219 ModuleBuildFailed = true;
1220 return ModuleLoadResult();
1223 // Try to compile the module.
1224 compileModule(*this, ModuleNameLoc, Module, ModuleFileName);
1226 // Try to read the module file, now that we've compiled it.
1227 ASTReader::ASTReadResult ReadResult
1228 = ModuleManager->ReadAST(ModuleFileName,
1229 serialization::MK_Module, ImportLoc,
1230 ASTReader::ARR_Missing);
1231 if (ReadResult != ASTReader::Success) {
1232 if (ReadResult == ASTReader::Missing) {
1233 getDiagnostics().Report(ModuleNameLoc,
1234 Module? diag::err_module_not_built
1235 : diag::err_module_not_found)
1237 << SourceRange(ImportLoc, ModuleNameLoc);
1240 if (getPreprocessorOpts().FailedModules)
1241 getPreprocessorOpts().FailedModules->addFailed(ModuleName);
1242 KnownModules[Path[0].first] = 0;
1243 ModuleBuildFailed = true;
1244 return ModuleLoadResult();
1247 // Okay, we've rebuilt and now loaded the module.
1251 case ASTReader::VersionMismatch:
1252 case ASTReader::ConfigurationMismatch:
1253 case ASTReader::HadErrors:
1254 // FIXME: The ASTReader will already have complained, but can we showhorn
1255 // that diagnostic information into a more useful form?
1256 KnownModules[Path[0].first] = 0;
1257 return ModuleLoadResult();
1259 case ASTReader::Failure:
1260 // Already complained, but note now that we failed.
1261 KnownModules[Path[0].first] = 0;
1262 ModuleBuildFailed = true;
1263 return ModuleLoadResult();
1267 // If we loaded the module directly, without finding a module map first,
1268 // we'll have loaded the module's information from the module itself.
1269 Module = PP->getHeaderSearchInfo().getModuleMap()
1270 .findModule((Path[0].first->getName()));
1273 // Cache the result of this top-level module lookup for later.
1274 Known = KnownModules.insert(std::make_pair(Path[0].first, Module)).first;
1277 // If we never found the module, fail.
1279 return ModuleLoadResult();
1281 // Verify that the rest of the module path actually corresponds to
1283 if (Path.size() > 1) {
1284 for (unsigned I = 1, N = Path.size(); I != N; ++I) {
1285 StringRef Name = Path[I].first->getName();
1286 clang::Module *Sub = Module->findSubmodule(Name);
1289 // Attempt to perform typo correction to find a module name that works.
1290 SmallVector<StringRef, 2> Best;
1291 unsigned BestEditDistance = (std::numeric_limits<unsigned>::max)();
1293 for (clang::Module::submodule_iterator J = Module->submodule_begin(),
1294 JEnd = Module->submodule_end();
1296 unsigned ED = Name.edit_distance((*J)->Name,
1297 /*AllowReplacements=*/true,
1299 if (ED <= BestEditDistance) {
1300 if (ED < BestEditDistance) {
1302 BestEditDistance = ED;
1305 Best.push_back((*J)->Name);
1309 // If there was a clear winner, user it.
1310 if (Best.size() == 1) {
1311 getDiagnostics().Report(Path[I].second,
1312 diag::err_no_submodule_suggest)
1313 << Path[I].first << Module->getFullModuleName() << Best[0]
1314 << SourceRange(Path[0].second, Path[I-1].second)
1315 << FixItHint::CreateReplacement(SourceRange(Path[I].second),
1318 Sub = Module->findSubmodule(Best[0]);
1323 // No submodule by this name. Complain, and don't look for further
1325 getDiagnostics().Report(Path[I].second, diag::err_no_submodule)
1326 << Path[I].first << Module->getFullModuleName()
1327 << SourceRange(Path[0].second, Path[I-1].second);
1335 // Make the named module visible, if it's not already part of the module
1337 if (ModuleName != getLangOpts().CurrentModule) {
1338 if (!Module->IsFromModuleFile) {
1339 // We have an umbrella header or directory that doesn't actually include
1340 // all of the headers within the directory it covers. Complain about
1341 // this missing submodule and recover by forgetting that we ever saw
1343 // FIXME: Should we detect this at module load time? It seems fairly
1344 // expensive (and rare).
1345 getDiagnostics().Report(ImportLoc, diag::warn_missing_submodule)
1346 << Module->getFullModuleName()
1347 << SourceRange(Path.front().second, Path.back().second);
1349 return ModuleLoadResult(0, true);
1352 // Check whether this module is available.
1354 if (!Module->isAvailable(getLangOpts(), getTarget(), Feature)) {
1355 getDiagnostics().Report(ImportLoc, diag::err_module_unavailable)
1356 << Module->getFullModuleName()
1358 << SourceRange(Path.front().second, Path.back().second);
1359 LastModuleImportLoc = ImportLoc;
1360 LastModuleImportResult = ModuleLoadResult();
1361 return ModuleLoadResult();
1364 ModuleManager->makeModuleVisible(Module, Visibility, ImportLoc,
1368 // Check for any configuration macros that have changed.
1369 clang::Module *TopModule = Module->getTopLevelModule();
1370 for (unsigned I = 0, N = TopModule->ConfigMacros.size(); I != N; ++I) {
1371 checkConfigMacro(getPreprocessor(), TopModule->ConfigMacros[I],
1375 // If this module import was due to an inclusion directive, create an
1376 // implicit import declaration to capture it in the AST.
1377 if (IsInclusionDirective && hasASTContext()) {
1378 TranslationUnitDecl *TU = getASTContext().getTranslationUnitDecl();
1379 ImportDecl *ImportD = ImportDecl::CreateImplicit(getASTContext(), TU,
1381 Path.back().second);
1382 TU->addDecl(ImportD);
1384 Consumer->HandleImplicitImportDecl(ImportD);
1387 LastModuleImportLoc = ImportLoc;
1388 LastModuleImportResult = ModuleLoadResult(Module, false);
1389 return LastModuleImportResult;
1392 void CompilerInstance::makeModuleVisible(Module *Mod,
1393 Module::NameVisibilityKind Visibility,
1394 SourceLocation ImportLoc,
1396 ModuleManager->makeModuleVisible(Mod, Visibility, ImportLoc, Complain);