From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/tools/libclang/Indexing.cpp | 818 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 818 insertions(+) create mode 100644 clang/tools/libclang/Indexing.cpp (limited to 'clang/tools/libclang/Indexing.cpp') diff --git a/clang/tools/libclang/Indexing.cpp b/clang/tools/libclang/Indexing.cpp new file mode 100644 index 0000000..e660c4d --- /dev/null +++ b/clang/tools/libclang/Indexing.cpp @@ -0,0 +1,818 @@ +//===- CIndexHigh.cpp - Higher level API functions ------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "IndexingContext.h" +#include "CXCursor.h" +#include "CXSourceLocation.h" +#include "CXTranslationUnit.h" +#include "CXString.h" +#include "CIndexDiagnostic.h" +#include "CIndexer.h" + +#include "clang/Frontend/ASTUnit.h" +#include "clang/Frontend/CompilerInvocation.h" +#include "clang/Frontend/CompilerInstance.h" +#include "clang/Frontend/FrontendAction.h" +#include "clang/Frontend/Utils.h" +#include "clang/Sema/SemaConsumer.h" +#include "clang/AST/ASTConsumer.h" +#include "clang/AST/DeclVisitor.h" +#include "clang/Lex/Preprocessor.h" +#include "clang/Lex/PPCallbacks.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/CrashRecoveryContext.h" + +using namespace clang; +using namespace cxstring; +using namespace cxtu; +using namespace cxindex; + +static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx); + +namespace { + +//===----------------------------------------------------------------------===// +// IndexPPCallbacks +//===----------------------------------------------------------------------===// + +class IndexPPCallbacks : public PPCallbacks { + Preprocessor &PP; + IndexingContext &IndexCtx; + bool IsMainFileEntered; + +public: + IndexPPCallbacks(Preprocessor &PP, IndexingContext &indexCtx) + : PP(PP), IndexCtx(indexCtx), IsMainFileEntered(false) { } + + virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason, + SrcMgr::CharacteristicKind FileType, FileID PrevFID) { + if (IsMainFileEntered) + return; + + SourceManager &SM = PP.getSourceManager(); + SourceLocation MainFileLoc = SM.getLocForStartOfFile(SM.getMainFileID()); + + if (Loc == MainFileLoc && Reason == PPCallbacks::EnterFile) { + IsMainFileEntered = true; + IndexCtx.enteredMainFile(SM.getFileEntryForID(SM.getMainFileID())); + } + } + + virtual void InclusionDirective(SourceLocation HashLoc, + const Token &IncludeTok, + StringRef FileName, + bool IsAngled, + const FileEntry *File, + SourceLocation EndLoc, + StringRef SearchPath, + StringRef RelativePath) { + bool isImport = (IncludeTok.is(tok::identifier) && + IncludeTok.getIdentifierInfo()->getPPKeywordID() == tok::pp_import); + IndexCtx.ppIncludedFile(HashLoc, FileName, File, isImport, IsAngled); + } + + /// MacroDefined - This hook is called whenever a macro definition is seen. + virtual void MacroDefined(const Token &Id, const MacroInfo *MI) { + } + + /// MacroUndefined - This hook is called whenever a macro #undef is seen. + /// MI is released immediately following this callback. + virtual void MacroUndefined(const Token &MacroNameTok, const MacroInfo *MI) { + } + + /// MacroExpands - This is called by when a macro invocation is found. + virtual void MacroExpands(const Token &MacroNameTok, const MacroInfo* MI, + SourceRange Range) { + } + + /// SourceRangeSkipped - This hook is called when a source range is skipped. + /// \param Range The SourceRange that was skipped. The range begins at the + /// #if/#else directive and ends after the #endif/#else directive. + virtual void SourceRangeSkipped(SourceRange Range) { + } +}; + +//===----------------------------------------------------------------------===// +// IndexingConsumer +//===----------------------------------------------------------------------===// + +class IndexingConsumer : public ASTConsumer { + IndexingContext &IndexCtx; + +public: + explicit IndexingConsumer(IndexingContext &indexCtx) + : IndexCtx(indexCtx) { } + + // ASTConsumer Implementation + + virtual void Initialize(ASTContext &Context) { + IndexCtx.setASTContext(Context); + IndexCtx.startedTranslationUnit(); + } + + virtual void HandleTranslationUnit(ASTContext &Ctx) { + } + + virtual bool HandleTopLevelDecl(DeclGroupRef DG) { + IndexCtx.indexDeclGroupRef(DG); + return !IndexCtx.shouldAbort(); + } + + /// \brief Handle the specified top-level declaration that occurred inside + /// and ObjC container. + virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) { + // They will be handled after the interface is seen first. + IndexCtx.addTUDeclInObjCContainer(D); + } + + /// \brief This is called by the AST reader when deserializing things. + /// The default implementation forwards to HandleTopLevelDecl but we don't + /// care about them when indexing, so have an empty definition. + virtual void HandleInterestingDecl(DeclGroupRef D) {} + + virtual void HandleTagDeclDefinition(TagDecl *D) { + if (!IndexCtx.shouldIndexImplicitTemplateInsts()) + return; + + if (IndexCtx.isTemplateImplicitInstantiation(D)) + IndexCtx.indexDecl(D); + } + + virtual void HandleCXXImplicitFunctionInstantiation(FunctionDecl *D) { + if (!IndexCtx.shouldIndexImplicitTemplateInsts()) + return; + + IndexCtx.indexDecl(D); + } +}; + +//===----------------------------------------------------------------------===// +// CaptureDiagnosticConsumer +//===----------------------------------------------------------------------===// + +class CaptureDiagnosticConsumer : public DiagnosticConsumer { + SmallVector Errors; +public: + + virtual void HandleDiagnostic(DiagnosticsEngine::Level level, + const Diagnostic &Info) { + if (level >= DiagnosticsEngine::Error) + Errors.push_back(StoredDiagnostic(level, Info)); + } + + DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { + return new IgnoringDiagConsumer(); + } +}; + +//===----------------------------------------------------------------------===// +// IndexingFrontendAction +//===----------------------------------------------------------------------===// + +class IndexingFrontendAction : public ASTFrontendAction { + IndexingContext IndexCtx; + CXTranslationUnit CXTU; + +public: + IndexingFrontendAction(CXClientData clientData, + IndexerCallbacks &indexCallbacks, + unsigned indexOptions, + CXTranslationUnit cxTU) + : IndexCtx(clientData, indexCallbacks, indexOptions, cxTU), + CXTU(cxTU) { } + + virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI, + StringRef InFile) { + IndexCtx.setASTContext(CI.getASTContext()); + Preprocessor &PP = CI.getPreprocessor(); + PP.addPPCallbacks(new IndexPPCallbacks(PP, IndexCtx)); + IndexCtx.setPreprocessor(PP); + return new IndexingConsumer(IndexCtx); + } + + virtual void EndSourceFileAction() { + indexDiagnostics(CXTU, IndexCtx); + } + + virtual TranslationUnitKind getTranslationUnitKind() { + if (IndexCtx.shouldIndexImplicitTemplateInsts()) + return TU_Complete; + else + return TU_Prefix; + } + virtual bool hasCodeCompletionSupport() const { return false; } +}; + +//===----------------------------------------------------------------------===// +// clang_indexSourceFileUnit Implementation +//===----------------------------------------------------------------------===// + +struct IndexSourceFileInfo { + CXIndexAction idxAction; + CXClientData client_data; + IndexerCallbacks *index_callbacks; + unsigned index_callbacks_size; + unsigned index_options; + const char *source_filename; + const char *const *command_line_args; + int num_command_line_args; + struct CXUnsavedFile *unsaved_files; + unsigned num_unsaved_files; + CXTranslationUnit *out_TU; + unsigned TU_options; + int result; +}; + +struct MemBufferOwner { + SmallVector Buffers; + + ~MemBufferOwner() { + for (SmallVectorImpl::iterator + I = Buffers.begin(), E = Buffers.end(); I != E; ++I) + delete *I; + } +}; + +} // anonymous namespace + +static void clang_indexSourceFile_Impl(void *UserData) { + IndexSourceFileInfo *ITUI = + static_cast(UserData); + CXIndex CIdx = (CXIndex)ITUI->idxAction; + CXClientData client_data = ITUI->client_data; + IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; + unsigned index_callbacks_size = ITUI->index_callbacks_size; + unsigned index_options = ITUI->index_options; + const char *source_filename = ITUI->source_filename; + const char * const *command_line_args = ITUI->command_line_args; + int num_command_line_args = ITUI->num_command_line_args; + struct CXUnsavedFile *unsaved_files = ITUI->unsaved_files; + unsigned num_unsaved_files = ITUI->num_unsaved_files; + CXTranslationUnit *out_TU = ITUI->out_TU; + unsigned TU_options = ITUI->TU_options; + ITUI->result = 1; // init as error. + + if (out_TU) + *out_TU = 0; + bool requestedToGetTU = (out_TU != 0); + + if (!CIdx) + return; + if (!client_index_callbacks || index_callbacks_size == 0) + return; + + IndexerCallbacks CB; + memset(&CB, 0, sizeof(CB)); + unsigned ClientCBSize = index_callbacks_size < sizeof(CB) + ? index_callbacks_size : sizeof(CB); + memcpy(&CB, client_index_callbacks, ClientCBSize); + + CIndexer *CXXIdx = static_cast(CIdx); + + if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing)) + setThreadBackgroundPriority(); + + CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer(); + + // Configure the diagnostics. + DiagnosticOptions DiagOpts; + IntrusiveRefCntPtr + Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args, + command_line_args, + CaptureDiag, + /*ShouldOwnClient=*/true, + /*ShouldCloneClient=*/false)); + + // Recover resources if we crash before exiting this function. + llvm::CrashRecoveryContextCleanupRegistrar > + DiagCleanup(Diags.getPtr()); + + OwningPtr > + Args(new std::vector()); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar > + ArgsCleanup(Args.get()); + + Args->insert(Args->end(), command_line_args, + command_line_args + num_command_line_args); + + // The 'source_filename' argument is optional. If the caller does not + // specify it then it is assumed that the source file is specified + // in the actual argument list. + // Put the source file after command_line_args otherwise if '-x' flag is + // present it will be unused. + if (source_filename) + Args->push_back(source_filename); + + IntrusiveRefCntPtr + CInvok(createInvocationFromCommandLine(*Args, Diags)); + + if (!CInvok) + return; + + // Recover resources if we crash before exiting this function. + llvm::CrashRecoveryContextCleanupRegistrar > + CInvokCleanup(CInvok.getPtr()); + + if (CInvok->getFrontendOpts().Inputs.empty()) + return; + + OwningPtr BufOwner(new MemBufferOwner()); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar + BufOwnerCleanup(BufOwner.get()); + + for (unsigned I = 0; I != num_unsaved_files; ++I) { + StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); + const llvm::MemoryBuffer *Buffer + = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); + CInvok->getPreprocessorOpts().addRemappedFile(unsaved_files[I].Filename, Buffer); + BufOwner->Buffers.push_back(Buffer); + } + + // Since libclang is primarily used by batch tools dealing with + // (often very broken) source code, where spell-checking can have a + // significant negative impact on performance (particularly when + // precompiled headers are involved), we disable it. + CInvok->getLangOpts()->SpellChecking = false; + + if (!requestedToGetTU) + CInvok->getPreprocessorOpts().DetailedRecord = false; + + if (index_options & CXIndexOpt_SuppressWarnings) + CInvok->getDiagnosticOpts().IgnoreWarnings = true; + + ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags, + /*CaptureDiagnostics=*/true); + OwningPtr CXTU(new CXTUOwner(MakeCXTranslationUnit(CXXIdx, Unit))); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar + CXTUCleanup(CXTU.get()); + + OwningPtr IndexAction; + IndexAction.reset(new IndexingFrontendAction(client_data, CB, + index_options, CXTU->getTU())); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar + IndexActionCleanup(IndexAction.get()); + + bool Persistent = requestedToGetTU; + StringRef ResourceFilesPath = CXXIdx->getClangResourcesPath(); + bool OnlyLocalDecls = false; + bool PrecompilePreamble = false; + bool CacheCodeCompletionResults = false; + PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts(); + PPOpts.DetailedRecord = false; + PPOpts.AllowPCHWithCompilerErrors = true; + + if (requestedToGetTU) { + OnlyLocalDecls = CXXIdx->getOnlyLocalDecls(); + PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble; + // FIXME: Add a flag for modules. + CacheCodeCompletionResults + = TU_options & CXTranslationUnit_CacheCompletionResults; + if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) { + PPOpts.DetailedRecord = true; + } + } + + DiagnosticErrorTrap DiagTrap(*Diags); + bool Success = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags, + IndexAction.get(), + Unit, + Persistent, + ResourceFilesPath, + OnlyLocalDecls, + /*CaptureDiagnostics=*/true, + PrecompilePreamble, + CacheCodeCompletionResults); + if (DiagTrap.hasErrorOccurred() && CXXIdx->getDisplayDiagnostics()) + printDiagsToStderr(Unit); + + if (!Success) + return; + + if (out_TU) + *out_TU = CXTU->takeTU(); + + ITUI->result = 0; // success. +} + +//===----------------------------------------------------------------------===// +// clang_indexTranslationUnit Implementation +//===----------------------------------------------------------------------===// + +namespace { + +struct IndexTranslationUnitInfo { + CXIndexAction idxAction; + CXClientData client_data; + IndexerCallbacks *index_callbacks; + unsigned index_callbacks_size; + unsigned index_options; + CXTranslationUnit TU; + int result; +}; + +} // anonymous namespace + +static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) { + Preprocessor &PP = Unit.getPreprocessor(); + if (!PP.getPreprocessingRecord()) + return; + + PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); + + // FIXME: Only deserialize inclusion directives. + // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module + // that it depends on. + + bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); + PreprocessingRecord::iterator I, E; + if (OnlyLocal) { + I = PPRec.local_begin(); + E = PPRec.local_end(); + } else { + I = PPRec.begin(); + E = PPRec.end(); + } + + for (; I != E; ++I) { + PreprocessedEntity *PPE = *I; + + if (InclusionDirective *ID = dyn_cast(PPE)) { + IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(), + ID->getFile(), ID->getKind() == InclusionDirective::Import, + !ID->wasInQuotes()); + } + } +} + +static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) { + // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module + // that it depends on. + + bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); + + if (OnlyLocal) { + for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(), + TLEnd = Unit.top_level_end(); + TL != TLEnd; ++TL) { + IdxCtx.indexTopLevelDecl(*TL); + if (IdxCtx.shouldAbort()) + return; + } + + } else { + TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl(); + for (TranslationUnitDecl::decl_iterator + I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) { + IdxCtx.indexTopLevelDecl(*I); + if (IdxCtx.shouldAbort()) + return; + } + } +} + +static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) { + if (!IdxCtx.hasDiagnosticCallback()) + return; + + CXDiagnosticSetImpl *DiagSet = cxdiag::lazyCreateDiags(TU); + IdxCtx.handleDiagnosticSet(DiagSet); +} + +static void clang_indexTranslationUnit_Impl(void *UserData) { + IndexTranslationUnitInfo *ITUI = + static_cast(UserData); + CXTranslationUnit TU = ITUI->TU; + CXClientData client_data = ITUI->client_data; + IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; + unsigned index_callbacks_size = ITUI->index_callbacks_size; + unsigned index_options = ITUI->index_options; + ITUI->result = 1; // init as error. + + if (!TU) + return; + if (!client_index_callbacks || index_callbacks_size == 0) + return; + + CIndexer *CXXIdx = (CIndexer*)TU->CIdx; + if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing)) + setThreadBackgroundPriority(); + + IndexerCallbacks CB; + memset(&CB, 0, sizeof(CB)); + unsigned ClientCBSize = index_callbacks_size < sizeof(CB) + ? index_callbacks_size : sizeof(CB); + memcpy(&CB, client_index_callbacks, ClientCBSize); + + OwningPtr IndexCtx; + IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU)); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar + IndexCtxCleanup(IndexCtx.get()); + + OwningPtr IndexConsumer; + IndexConsumer.reset(new IndexingConsumer(*IndexCtx)); + + // Recover resources if we crash before exiting this method. + llvm::CrashRecoveryContextCleanupRegistrar + IndexConsumerCleanup(IndexConsumer.get()); + + ASTUnit *Unit = static_cast(TU->TUData); + if (!Unit) + return; + + FileManager &FileMgr = Unit->getFileManager(); + + if (Unit->getOriginalSourceFileName().empty()) + IndexCtx->enteredMainFile(0); + else + IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName())); + + IndexConsumer->Initialize(Unit->getASTContext()); + + indexPreprocessingRecord(*Unit, *IndexCtx); + indexTranslationUnit(*Unit, *IndexCtx); + indexDiagnostics(TU, *IndexCtx); + + ITUI->result = 0; +} + +//===----------------------------------------------------------------------===// +// libclang public APIs. +//===----------------------------------------------------------------------===// + +extern "C" { + +int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) { + return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory; +} + +const CXIdxObjCContainerDeclInfo * +clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) { + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + if (const ObjCContainerDeclInfo * + ContInfo = dyn_cast(DI)) + return &ContInfo->ObjCContDeclInfo; + + return 0; +} + +const CXIdxObjCInterfaceDeclInfo * +clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) { + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + if (const ObjCInterfaceDeclInfo * + InterInfo = dyn_cast(DI)) + return &InterInfo->ObjCInterDeclInfo; + + return 0; +} + +const CXIdxObjCCategoryDeclInfo * +clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){ + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + if (const ObjCCategoryDeclInfo * + CatInfo = dyn_cast(DI)) + return &CatInfo->ObjCCatDeclInfo; + + return 0; +} + +const CXIdxObjCProtocolRefListInfo * +clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) { + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + + if (const ObjCInterfaceDeclInfo * + InterInfo = dyn_cast(DI)) + return InterInfo->ObjCInterDeclInfo.protocols; + + if (const ObjCProtocolDeclInfo * + ProtInfo = dyn_cast(DI)) + return &ProtInfo->ObjCProtoRefListInfo; + + if (const ObjCCategoryDeclInfo *CatInfo = dyn_cast(DI)) + return CatInfo->ObjCCatDeclInfo.protocols; + + return 0; +} + +const CXIdxObjCPropertyDeclInfo * +clang_index_getObjCPropertyDeclInfo(const CXIdxDeclInfo *DInfo) { + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + if (const ObjCPropertyDeclInfo *PropInfo = dyn_cast(DI)) + return &PropInfo->ObjCPropDeclInfo; + + return 0; +} + +const CXIdxIBOutletCollectionAttrInfo * +clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) { + if (!AInfo) + return 0; + + const AttrInfo *DI = static_cast(AInfo); + if (const IBOutletCollectionInfo * + IBInfo = dyn_cast(DI)) + return &IBInfo->IBCollInfo; + + return 0; +} + +const CXIdxCXXClassDeclInfo * +clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) { + if (!DInfo) + return 0; + + const DeclInfo *DI = static_cast(DInfo); + if (const CXXClassDeclInfo *ClassInfo = dyn_cast(DI)) + return &ClassInfo->CXXClassInfo; + + return 0; +} + +CXIdxClientContainer +clang_index_getClientContainer(const CXIdxContainerInfo *info) { + if (!info) + return 0; + const ContainerInfo *Container = static_cast(info); + return Container->IndexCtx->getClientContainerForDC(Container->DC); +} + +void clang_index_setClientContainer(const CXIdxContainerInfo *info, + CXIdxClientContainer client) { + if (!info) + return; + const ContainerInfo *Container = static_cast(info); + Container->IndexCtx->addContainerInMap(Container->DC, client); +} + +CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) { + if (!info) + return 0; + const EntityInfo *Entity = static_cast(info); + return Entity->IndexCtx->getClientEntity(Entity->Dcl); +} + +void clang_index_setClientEntity(const CXIdxEntityInfo *info, + CXIdxClientEntity client) { + if (!info) + return; + const EntityInfo *Entity = static_cast(info); + Entity->IndexCtx->setClientEntity(Entity->Dcl, client); +} + +CXIndexAction clang_IndexAction_create(CXIndex CIdx) { + // For now, CXIndexAction is featureless. + return CIdx; +} + +void clang_IndexAction_dispose(CXIndexAction idxAction) { + // For now, CXIndexAction is featureless. +} + +int clang_indexSourceFile(CXIndexAction idxAction, + CXClientData client_data, + IndexerCallbacks *index_callbacks, + unsigned index_callbacks_size, + unsigned index_options, + const char *source_filename, + const char * const *command_line_args, + int num_command_line_args, + struct CXUnsavedFile *unsaved_files, + unsigned num_unsaved_files, + CXTranslationUnit *out_TU, + unsigned TU_options) { + + IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks, + index_callbacks_size, index_options, + source_filename, command_line_args, + num_command_line_args, unsaved_files, + num_unsaved_files, out_TU, TU_options, 0 }; + + if (getenv("LIBCLANG_NOTHREADS")) { + clang_indexSourceFile_Impl(&ITUI); + return ITUI.result; + } + + llvm::CrashRecoveryContext CRC; + + if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) { + fprintf(stderr, "libclang: crash detected during indexing source file: {\n"); + fprintf(stderr, " 'source_filename' : '%s'\n", source_filename); + fprintf(stderr, " 'command_line_args' : ["); + for (int i = 0; i != num_command_line_args; ++i) { + if (i) + fprintf(stderr, ", "); + fprintf(stderr, "'%s'", command_line_args[i]); + } + fprintf(stderr, "],\n"); + fprintf(stderr, " 'unsaved_files' : ["); + for (unsigned i = 0; i != num_unsaved_files; ++i) { + if (i) + fprintf(stderr, ", "); + fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename, + unsaved_files[i].Length); + } + fprintf(stderr, "],\n"); + fprintf(stderr, " 'options' : %d,\n", TU_options); + fprintf(stderr, "}\n"); + + return 1; + } else if (getenv("LIBCLANG_RESOURCE_USAGE")) { + if (out_TU) + PrintLibclangResourceUsage(*out_TU); + } + + return ITUI.result; +} + +int clang_indexTranslationUnit(CXIndexAction idxAction, + CXClientData client_data, + IndexerCallbacks *index_callbacks, + unsigned index_callbacks_size, + unsigned index_options, + CXTranslationUnit TU) { + + IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks, + index_callbacks_size, index_options, TU, + 0 }; + + if (getenv("LIBCLANG_NOTHREADS")) { + clang_indexTranslationUnit_Impl(&ITUI); + return ITUI.result; + } + + llvm::CrashRecoveryContext CRC; + + if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) { + fprintf(stderr, "libclang: crash detected during indexing TU\n"); + + return 1; + } + + return ITUI.result; +} + +void clang_indexLoc_getFileLocation(CXIdxLoc location, + CXIdxClientFile *indexFile, + CXFile *file, + unsigned *line, + unsigned *column, + unsigned *offset) { + if (indexFile) *indexFile = 0; + if (file) *file = 0; + if (line) *line = 0; + if (column) *column = 0; + if (offset) *offset = 0; + + SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); + if (!location.ptr_data[0] || Loc.isInvalid()) + return; + + IndexingContext &IndexCtx = + *static_cast(location.ptr_data[0]); + IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset); +} + +CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) { + SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); + if (!location.ptr_data[0] || Loc.isInvalid()) + return clang_getNullLocation(); + + IndexingContext &IndexCtx = + *static_cast(location.ptr_data[0]); + return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc); +} + +} // end: extern "C" + -- cgit v1.2.3