1 //===- CIndexHigh.cpp - Higher level API functions ------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "IndexingContext.h" 11 #include "CXCursor.h" 12 #include "CXSourceLocation.h" 13 #include "CXTranslationUnit.h" 14 #include "CXString.h" 15 #include "CIndexDiagnostic.h" 16 #include "CIndexer.h" 17 18 #include "clang/Frontend/ASTUnit.h" 19 #include "clang/Frontend/CompilerInvocation.h" 20 #include "clang/Frontend/CompilerInstance.h" 21 #include "clang/Frontend/FrontendAction.h" 22 #include "clang/Frontend/Utils.h" 23 #include "clang/Sema/SemaConsumer.h" 24 #include "clang/AST/ASTConsumer.h" 25 #include "clang/AST/DeclVisitor.h" 26 #include "clang/Lex/Preprocessor.h" 27 #include "clang/Lex/PPCallbacks.h" 28 #include "llvm/Support/MemoryBuffer.h" 29 #include "llvm/Support/CrashRecoveryContext.h" 30 31 using namespace clang; 32 using namespace cxstring; 33 using namespace cxtu; 34 using namespace cxindex; 35 36 static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx); 37 38 namespace { 39 40 //===----------------------------------------------------------------------===// 41 // IndexPPCallbacks 42 //===----------------------------------------------------------------------===// 43 44 class IndexPPCallbacks : public PPCallbacks { 45 Preprocessor &PP; 46 IndexingContext &IndexCtx; 47 bool IsMainFileEntered; 48 49 public: 50 IndexPPCallbacks(Preprocessor &PP, IndexingContext &indexCtx) 51 : PP(PP), IndexCtx(indexCtx), IsMainFileEntered(false) { } 52 53 virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason, 54 SrcMgr::CharacteristicKind FileType, FileID PrevFID) { 55 if (IsMainFileEntered) 56 return; 57 58 SourceManager &SM = PP.getSourceManager(); 59 SourceLocation MainFileLoc = SM.getLocForStartOfFile(SM.getMainFileID()); 60 61 if (Loc == MainFileLoc && Reason == PPCallbacks::EnterFile) { 62 IsMainFileEntered = true; 63 IndexCtx.enteredMainFile(SM.getFileEntryForID(SM.getMainFileID())); 64 } 65 } 66 67 virtual void InclusionDirective(SourceLocation HashLoc, 68 const Token &IncludeTok, 69 StringRef FileName, 70 bool IsAngled, 71 const FileEntry *File, 72 SourceLocation EndLoc, 73 StringRef SearchPath, 74 StringRef RelativePath) { 75 bool isImport = (IncludeTok.is(tok::identifier) && 76 IncludeTok.getIdentifierInfo()->getPPKeywordID() == tok::pp_import); 77 IndexCtx.ppIncludedFile(HashLoc, FileName, File, isImport, IsAngled); 78 } 79 80 /// MacroDefined - This hook is called whenever a macro definition is seen. 81 virtual void MacroDefined(const Token &Id, const MacroInfo *MI) { 82 } 83 84 /// MacroUndefined - This hook is called whenever a macro #undef is seen. 85 /// MI is released immediately following this callback. 86 virtual void MacroUndefined(const Token &MacroNameTok, const MacroInfo *MI) { 87 } 88 89 /// MacroExpands - This is called by when a macro invocation is found. 90 virtual void MacroExpands(const Token &MacroNameTok, const MacroInfo* MI, 91 SourceRange Range) { 92 } 93 94 /// SourceRangeSkipped - This hook is called when a source range is skipped. 95 /// \param Range The SourceRange that was skipped. The range begins at the 96 /// #if/#else directive and ends after the #endif/#else directive. 97 virtual void SourceRangeSkipped(SourceRange Range) { 98 } 99 }; 100 101 //===----------------------------------------------------------------------===// 102 // IndexingConsumer 103 //===----------------------------------------------------------------------===// 104 105 class IndexingConsumer : public ASTConsumer { 106 IndexingContext &IndexCtx; 107 108 public: 109 explicit IndexingConsumer(IndexingContext &indexCtx) 110 : IndexCtx(indexCtx) { } 111 112 // ASTConsumer Implementation 113 114 virtual void Initialize(ASTContext &Context) { 115 IndexCtx.setASTContext(Context); 116 IndexCtx.startedTranslationUnit(); 117 } 118 119 virtual void HandleTranslationUnit(ASTContext &Ctx) { 120 } 121 122 virtual bool HandleTopLevelDecl(DeclGroupRef DG) { 123 IndexCtx.indexDeclGroupRef(DG); 124 return !IndexCtx.shouldAbort(); 125 } 126 127 /// \brief Handle the specified top-level declaration that occurred inside 128 /// and ObjC container. 129 virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) { 130 // They will be handled after the interface is seen first. 131 IndexCtx.addTUDeclInObjCContainer(D); 132 } 133 134 /// \brief This is called by the AST reader when deserializing things. 135 /// The default implementation forwards to HandleTopLevelDecl but we don't 136 /// care about them when indexing, so have an empty definition. 137 virtual void HandleInterestingDecl(DeclGroupRef D) {} 138 139 virtual void HandleTagDeclDefinition(TagDecl *D) { 140 if (!IndexCtx.shouldIndexImplicitTemplateInsts()) 141 return; 142 143 if (IndexCtx.isTemplateImplicitInstantiation(D)) 144 IndexCtx.indexDecl(D); 145 } 146 147 virtual void HandleCXXImplicitFunctionInstantiation(FunctionDecl *D) { 148 if (!IndexCtx.shouldIndexImplicitTemplateInsts()) 149 return; 150 151 IndexCtx.indexDecl(D); 152 } 153 }; 154 155 //===----------------------------------------------------------------------===// 156 // CaptureDiagnosticConsumer 157 //===----------------------------------------------------------------------===// 158 159 class CaptureDiagnosticConsumer : public DiagnosticConsumer { 160 SmallVector<StoredDiagnostic, 4> Errors; 161 public: 162 163 virtual void HandleDiagnostic(DiagnosticsEngine::Level level, 164 const Diagnostic &Info) { 165 if (level >= DiagnosticsEngine::Error) 166 Errors.push_back(StoredDiagnostic(level, Info)); 167 } 168 169 DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { 170 return new IgnoringDiagConsumer(); 171 } 172 }; 173 174 //===----------------------------------------------------------------------===// 175 // IndexingFrontendAction 176 //===----------------------------------------------------------------------===// 177 178 class IndexingFrontendAction : public ASTFrontendAction { 179 IndexingContext IndexCtx; 180 CXTranslationUnit CXTU; 181 182 public: 183 IndexingFrontendAction(CXClientData clientData, 184 IndexerCallbacks &indexCallbacks, 185 unsigned indexOptions, 186 CXTranslationUnit cxTU) 187 : IndexCtx(clientData, indexCallbacks, indexOptions, cxTU), 188 CXTU(cxTU) { } 189 190 virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI, 191 StringRef InFile) { 192 IndexCtx.setASTContext(CI.getASTContext()); 193 Preprocessor &PP = CI.getPreprocessor(); 194 PP.addPPCallbacks(new IndexPPCallbacks(PP, IndexCtx)); 195 IndexCtx.setPreprocessor(PP); 196 return new IndexingConsumer(IndexCtx); 197 } 198 199 virtual void EndSourceFileAction() { 200 indexDiagnostics(CXTU, IndexCtx); 201 } 202 203 virtual TranslationUnitKind getTranslationUnitKind() { 204 if (IndexCtx.shouldIndexImplicitTemplateInsts()) 205 return TU_Complete; 206 else 207 return TU_Prefix; 208 } 209 virtual bool hasCodeCompletionSupport() const { return false; } 210 }; 211 212 //===----------------------------------------------------------------------===// 213 // clang_indexSourceFileUnit Implementation 214 //===----------------------------------------------------------------------===// 215 216 struct IndexSourceFileInfo { 217 CXIndexAction idxAction; 218 CXClientData client_data; 219 IndexerCallbacks *index_callbacks; 220 unsigned index_callbacks_size; 221 unsigned index_options; 222 const char *source_filename; 223 const char *const *command_line_args; 224 int num_command_line_args; 225 struct CXUnsavedFile *unsaved_files; 226 unsigned num_unsaved_files; 227 CXTranslationUnit *out_TU; 228 unsigned TU_options; 229 int result; 230 }; 231 232 struct MemBufferOwner { 233 SmallVector<const llvm::MemoryBuffer *, 8> Buffers; 234 235 ~MemBufferOwner() { 236 for (SmallVectorImpl<const llvm::MemoryBuffer *>::iterator 237 I = Buffers.begin(), E = Buffers.end(); I != E; ++I) 238 delete *I; 239 } 240 }; 241 242 } // anonymous namespace 243 244 static void clang_indexSourceFile_Impl(void *UserData) { 245 IndexSourceFileInfo *ITUI = 246 static_cast<IndexSourceFileInfo*>(UserData); 247 CXIndex CIdx = (CXIndex)ITUI->idxAction; 248 CXClientData client_data = ITUI->client_data; 249 IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; 250 unsigned index_callbacks_size = ITUI->index_callbacks_size; 251 unsigned index_options = ITUI->index_options; 252 const char *source_filename = ITUI->source_filename; 253 const char * const *command_line_args = ITUI->command_line_args; 254 int num_command_line_args = ITUI->num_command_line_args; 255 struct CXUnsavedFile *unsaved_files = ITUI->unsaved_files; 256 unsigned num_unsaved_files = ITUI->num_unsaved_files; 257 CXTranslationUnit *out_TU = ITUI->out_TU; 258 unsigned TU_options = ITUI->TU_options; 259 ITUI->result = 1; // init as error. 260 261 if (out_TU) 262 *out_TU = 0; 263 bool requestedToGetTU = (out_TU != 0); 264 265 if (!CIdx) 266 return; 267 if (!client_index_callbacks || index_callbacks_size == 0) 268 return; 269 270 IndexerCallbacks CB; 271 memset(&CB, 0, sizeof(CB)); 272 unsigned ClientCBSize = index_callbacks_size < sizeof(CB) 273 ? index_callbacks_size : sizeof(CB); 274 memcpy(&CB, client_index_callbacks, ClientCBSize); 275 276 CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); 277 278 if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing)) 279 setThreadBackgroundPriority(); 280 281 CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer(); 282 283 // Configure the diagnostics. 284 DiagnosticOptions DiagOpts; 285 IntrusiveRefCntPtr<DiagnosticsEngine> 286 Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args, 287 command_line_args, 288 CaptureDiag, 289 /*ShouldOwnClient=*/true, 290 /*ShouldCloneClient=*/false)); 291 292 // Recover resources if we crash before exiting this function. 293 llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, 294 llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> > 295 DiagCleanup(Diags.getPtr()); 296 297 OwningPtr<std::vector<const char *> > 298 Args(new std::vector<const char*>()); 299 300 // Recover resources if we crash before exiting this method. 301 llvm::CrashRecoveryContextCleanupRegistrar<std::vector<const char*> > 302 ArgsCleanup(Args.get()); 303 304 Args->insert(Args->end(), command_line_args, 305 command_line_args + num_command_line_args); 306 307 // The 'source_filename' argument is optional. If the caller does not 308 // specify it then it is assumed that the source file is specified 309 // in the actual argument list. 310 // Put the source file after command_line_args otherwise if '-x' flag is 311 // present it will be unused. 312 if (source_filename) 313 Args->push_back(source_filename); 314 315 IntrusiveRefCntPtr<CompilerInvocation> 316 CInvok(createInvocationFromCommandLine(*Args, Diags)); 317 318 if (!CInvok) 319 return; 320 321 // Recover resources if we crash before exiting this function. 322 llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation, 323 llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> > 324 CInvokCleanup(CInvok.getPtr()); 325 326 if (CInvok->getFrontendOpts().Inputs.empty()) 327 return; 328 329 OwningPtr<MemBufferOwner> BufOwner(new MemBufferOwner()); 330 331 // Recover resources if we crash before exiting this method. 332 llvm::CrashRecoveryContextCleanupRegistrar<MemBufferOwner> 333 BufOwnerCleanup(BufOwner.get()); 334 335 for (unsigned I = 0; I != num_unsaved_files; ++I) { 336 StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); 337 const llvm::MemoryBuffer *Buffer 338 = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); 339 CInvok->getPreprocessorOpts().addRemappedFile(unsaved_files[I].Filename, Buffer); 340 BufOwner->Buffers.push_back(Buffer); 341 } 342 343 // Since libclang is primarily used by batch tools dealing with 344 // (often very broken) source code, where spell-checking can have a 345 // significant negative impact on performance (particularly when 346 // precompiled headers are involved), we disable it. 347 CInvok->getLangOpts()->SpellChecking = false; 348 349 if (!requestedToGetTU) 350 CInvok->getPreprocessorOpts().DetailedRecord = false; 351 352 if (index_options & CXIndexOpt_SuppressWarnings) 353 CInvok->getDiagnosticOpts().IgnoreWarnings = true; 354 355 ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags, 356 /*CaptureDiagnostics=*/true); 357 OwningPtr<CXTUOwner> CXTU(new CXTUOwner(MakeCXTranslationUnit(CXXIdx, Unit))); 358 359 // Recover resources if we crash before exiting this method. 360 llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner> 361 CXTUCleanup(CXTU.get()); 362 363 OwningPtr<IndexingFrontendAction> IndexAction; 364 IndexAction.reset(new IndexingFrontendAction(client_data, CB, 365 index_options, CXTU->getTU())); 366 367 // Recover resources if we crash before exiting this method. 368 llvm::CrashRecoveryContextCleanupRegistrar<IndexingFrontendAction> 369 IndexActionCleanup(IndexAction.get()); 370 371 bool Persistent = requestedToGetTU; 372 StringRef ResourceFilesPath = CXXIdx->getClangResourcesPath(); 373 bool OnlyLocalDecls = false; 374 bool PrecompilePreamble = false; 375 bool CacheCodeCompletionResults = false; 376 PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts(); 377 PPOpts.DetailedRecord = false; 378 PPOpts.AllowPCHWithCompilerErrors = true; 379 380 if (requestedToGetTU) { 381 OnlyLocalDecls = CXXIdx->getOnlyLocalDecls(); 382 PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble; 383 // FIXME: Add a flag for modules. 384 CacheCodeCompletionResults 385 = TU_options & CXTranslationUnit_CacheCompletionResults; 386 if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) { 387 PPOpts.DetailedRecord = true; 388 } 389 } 390 391 DiagnosticErrorTrap DiagTrap(*Diags); 392 bool Success = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags, 393 IndexAction.get(), 394 Unit, 395 Persistent, 396 ResourceFilesPath, 397 OnlyLocalDecls, 398 /*CaptureDiagnostics=*/true, 399 PrecompilePreamble, 400 CacheCodeCompletionResults); 401 if (DiagTrap.hasErrorOccurred() && CXXIdx->getDisplayDiagnostics()) 402 printDiagsToStderr(Unit); 403 404 if (!Success) 405 return; 406 407 if (out_TU) 408 *out_TU = CXTU->takeTU(); 409 410 ITUI->result = 0; // success. 411 } 412 413 //===----------------------------------------------------------------------===// 414 // clang_indexTranslationUnit Implementation 415 //===----------------------------------------------------------------------===// 416 417 namespace { 418 419 struct IndexTranslationUnitInfo { 420 CXIndexAction idxAction; 421 CXClientData client_data; 422 IndexerCallbacks *index_callbacks; 423 unsigned index_callbacks_size; 424 unsigned index_options; 425 CXTranslationUnit TU; 426 int result; 427 }; 428 429 } // anonymous namespace 430 431 static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) { 432 Preprocessor &PP = Unit.getPreprocessor(); 433 if (!PP.getPreprocessingRecord()) 434 return; 435 436 PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); 437 438 // FIXME: Only deserialize inclusion directives. 439 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 440 // that it depends on. 441 442 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 443 PreprocessingRecord::iterator I, E; 444 if (OnlyLocal) { 445 I = PPRec.local_begin(); 446 E = PPRec.local_end(); 447 } else { 448 I = PPRec.begin(); 449 E = PPRec.end(); 450 } 451 452 for (; I != E; ++I) { 453 PreprocessedEntity *PPE = *I; 454 455 if (InclusionDirective *ID = dyn_cast<InclusionDirective>(PPE)) { 456 IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(), 457 ID->getFile(), ID->getKind() == InclusionDirective::Import, 458 !ID->wasInQuotes()); 459 } 460 } 461 } 462 463 static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) { 464 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 465 // that it depends on. 466 467 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 468 469 if (OnlyLocal) { 470 for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(), 471 TLEnd = Unit.top_level_end(); 472 TL != TLEnd; ++TL) { 473 IdxCtx.indexTopLevelDecl(*TL); 474 if (IdxCtx.shouldAbort()) 475 return; 476 } 477 478 } else { 479 TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl(); 480 for (TranslationUnitDecl::decl_iterator 481 I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) { 482 IdxCtx.indexTopLevelDecl(*I); 483 if (IdxCtx.shouldAbort()) 484 return; 485 } 486 } 487 } 488 489 static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) { 490 if (!IdxCtx.hasDiagnosticCallback()) 491 return; 492 493 CXDiagnosticSetImpl *DiagSet = cxdiag::lazyCreateDiags(TU); 494 IdxCtx.handleDiagnosticSet(DiagSet); 495 } 496 497 static void clang_indexTranslationUnit_Impl(void *UserData) { 498 IndexTranslationUnitInfo *ITUI = 499 static_cast<IndexTranslationUnitInfo*>(UserData); 500 CXTranslationUnit TU = ITUI->TU; 501 CXClientData client_data = ITUI->client_data; 502 IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; 503 unsigned index_callbacks_size = ITUI->index_callbacks_size; 504 unsigned index_options = ITUI->index_options; 505 ITUI->result = 1; // init as error. 506 507 if (!TU) 508 return; 509 if (!client_index_callbacks || index_callbacks_size == 0) 510 return; 511 512 CIndexer *CXXIdx = (CIndexer*)TU->CIdx; 513 if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing)) 514 setThreadBackgroundPriority(); 515 516 IndexerCallbacks CB; 517 memset(&CB, 0, sizeof(CB)); 518 unsigned ClientCBSize = index_callbacks_size < sizeof(CB) 519 ? index_callbacks_size : sizeof(CB); 520 memcpy(&CB, client_index_callbacks, ClientCBSize); 521 522 OwningPtr<IndexingContext> IndexCtx; 523 IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU)); 524 525 // Recover resources if we crash before exiting this method. 526 llvm::CrashRecoveryContextCleanupRegistrar<IndexingContext> 527 IndexCtxCleanup(IndexCtx.get()); 528 529 OwningPtr<IndexingConsumer> IndexConsumer; 530 IndexConsumer.reset(new IndexingConsumer(*IndexCtx)); 531 532 // Recover resources if we crash before exiting this method. 533 llvm::CrashRecoveryContextCleanupRegistrar<IndexingConsumer> 534 IndexConsumerCleanup(IndexConsumer.get()); 535 536 ASTUnit *Unit = static_cast<ASTUnit *>(TU->TUData); 537 if (!Unit) 538 return; 539 540 FileManager &FileMgr = Unit->getFileManager(); 541 542 if (Unit->getOriginalSourceFileName().empty()) 543 IndexCtx->enteredMainFile(0); 544 else 545 IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName())); 546 547 IndexConsumer->Initialize(Unit->getASTContext()); 548 549 indexPreprocessingRecord(*Unit, *IndexCtx); 550 indexTranslationUnit(*Unit, *IndexCtx); 551 indexDiagnostics(TU, *IndexCtx); 552 553 ITUI->result = 0; 554 } 555 556 //===----------------------------------------------------------------------===// 557 // libclang public APIs. 558 //===----------------------------------------------------------------------===// 559 560 extern "C" { 561 562 int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) { 563 return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory; 564 } 565 566 const CXIdxObjCContainerDeclInfo * 567 clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) { 568 if (!DInfo) 569 return 0; 570 571 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 572 if (const ObjCContainerDeclInfo * 573 ContInfo = dyn_cast<ObjCContainerDeclInfo>(DI)) 574 return &ContInfo->ObjCContDeclInfo; 575 576 return 0; 577 } 578 579 const CXIdxObjCInterfaceDeclInfo * 580 clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) { 581 if (!DInfo) 582 return 0; 583 584 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 585 if (const ObjCInterfaceDeclInfo * 586 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 587 return &InterInfo->ObjCInterDeclInfo; 588 589 return 0; 590 } 591 592 const CXIdxObjCCategoryDeclInfo * 593 clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){ 594 if (!DInfo) 595 return 0; 596 597 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 598 if (const ObjCCategoryDeclInfo * 599 CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI)) 600 return &CatInfo->ObjCCatDeclInfo; 601 602 return 0; 603 } 604 605 const CXIdxObjCProtocolRefListInfo * 606 clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) { 607 if (!DInfo) 608 return 0; 609 610 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 611 612 if (const ObjCInterfaceDeclInfo * 613 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 614 return InterInfo->ObjCInterDeclInfo.protocols; 615 616 if (const ObjCProtocolDeclInfo * 617 ProtInfo = dyn_cast<ObjCProtocolDeclInfo>(DI)) 618 return &ProtInfo->ObjCProtoRefListInfo; 619 620 if (const ObjCCategoryDeclInfo *CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI)) 621 return CatInfo->ObjCCatDeclInfo.protocols; 622 623 return 0; 624 } 625 626 const CXIdxObjCPropertyDeclInfo * 627 clang_index_getObjCPropertyDeclInfo(const CXIdxDeclInfo *DInfo) { 628 if (!DInfo) 629 return 0; 630 631 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 632 if (const ObjCPropertyDeclInfo *PropInfo = dyn_cast<ObjCPropertyDeclInfo>(DI)) 633 return &PropInfo->ObjCPropDeclInfo; 634 635 return 0; 636 } 637 638 const CXIdxIBOutletCollectionAttrInfo * 639 clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) { 640 if (!AInfo) 641 return 0; 642 643 const AttrInfo *DI = static_cast<const AttrInfo *>(AInfo); 644 if (const IBOutletCollectionInfo * 645 IBInfo = dyn_cast<IBOutletCollectionInfo>(DI)) 646 return &IBInfo->IBCollInfo; 647 648 return 0; 649 } 650 651 const CXIdxCXXClassDeclInfo * 652 clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) { 653 if (!DInfo) 654 return 0; 655 656 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 657 if (const CXXClassDeclInfo *ClassInfo = dyn_cast<CXXClassDeclInfo>(DI)) 658 return &ClassInfo->CXXClassInfo; 659 660 return 0; 661 } 662 663 CXIdxClientContainer 664 clang_index_getClientContainer(const CXIdxContainerInfo *info) { 665 if (!info) 666 return 0; 667 const ContainerInfo *Container = static_cast<const ContainerInfo *>(info); 668 return Container->IndexCtx->getClientContainerForDC(Container->DC); 669 } 670 671 void clang_index_setClientContainer(const CXIdxContainerInfo *info, 672 CXIdxClientContainer client) { 673 if (!info) 674 return; 675 const ContainerInfo *Container = static_cast<const ContainerInfo *>(info); 676 Container->IndexCtx->addContainerInMap(Container->DC, client); 677 } 678 679 CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) { 680 if (!info) 681 return 0; 682 const EntityInfo *Entity = static_cast<const EntityInfo *>(info); 683 return Entity->IndexCtx->getClientEntity(Entity->Dcl); 684 } 685 686 void clang_index_setClientEntity(const CXIdxEntityInfo *info, 687 CXIdxClientEntity client) { 688 if (!info) 689 return; 690 const EntityInfo *Entity = static_cast<const EntityInfo *>(info); 691 Entity->IndexCtx->setClientEntity(Entity->Dcl, client); 692 } 693 694 CXIndexAction clang_IndexAction_create(CXIndex CIdx) { 695 // For now, CXIndexAction is featureless. 696 return CIdx; 697 } 698 699 void clang_IndexAction_dispose(CXIndexAction idxAction) { 700 // For now, CXIndexAction is featureless. 701 } 702 703 int clang_indexSourceFile(CXIndexAction idxAction, 704 CXClientData client_data, 705 IndexerCallbacks *index_callbacks, 706 unsigned index_callbacks_size, 707 unsigned index_options, 708 const char *source_filename, 709 const char * const *command_line_args, 710 int num_command_line_args, 711 struct CXUnsavedFile *unsaved_files, 712 unsigned num_unsaved_files, 713 CXTranslationUnit *out_TU, 714 unsigned TU_options) { 715 716 IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks, 717 index_callbacks_size, index_options, 718 source_filename, command_line_args, 719 num_command_line_args, unsaved_files, 720 num_unsaved_files, out_TU, TU_options, 0 }; 721 722 if (getenv("LIBCLANG_NOTHREADS")) { 723 clang_indexSourceFile_Impl(&ITUI); 724 return ITUI.result; 725 } 726 727 llvm::CrashRecoveryContext CRC; 728 729 if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) { 730 fprintf(stderr, "libclang: crash detected during indexing source file: {\n"); 731 fprintf(stderr, " 'source_filename' : '%s'\n", source_filename); 732 fprintf(stderr, " 'command_line_args' : ["); 733 for (int i = 0; i != num_command_line_args; ++i) { 734 if (i) 735 fprintf(stderr, ", "); 736 fprintf(stderr, "'%s'", command_line_args[i]); 737 } 738 fprintf(stderr, "],\n"); 739 fprintf(stderr, " 'unsaved_files' : ["); 740 for (unsigned i = 0; i != num_unsaved_files; ++i) { 741 if (i) 742 fprintf(stderr, ", "); 743 fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename, 744 unsaved_files[i].Length); 745 } 746 fprintf(stderr, "],\n"); 747 fprintf(stderr, " 'options' : %d,\n", TU_options); 748 fprintf(stderr, "}\n"); 749 750 return 1; 751 } else if (getenv("LIBCLANG_RESOURCE_USAGE")) { 752 if (out_TU) 753 PrintLibclangResourceUsage(*out_TU); 754 } 755 756 return ITUI.result; 757 } 758 759 int clang_indexTranslationUnit(CXIndexAction idxAction, 760 CXClientData client_data, 761 IndexerCallbacks *index_callbacks, 762 unsigned index_callbacks_size, 763 unsigned index_options, 764 CXTranslationUnit TU) { 765 766 IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks, 767 index_callbacks_size, index_options, TU, 768 0 }; 769 770 if (getenv("LIBCLANG_NOTHREADS")) { 771 clang_indexTranslationUnit_Impl(&ITUI); 772 return ITUI.result; 773 } 774 775 llvm::CrashRecoveryContext CRC; 776 777 if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) { 778 fprintf(stderr, "libclang: crash detected during indexing TU\n"); 779 780 return 1; 781 } 782 783 return ITUI.result; 784 } 785 786 void clang_indexLoc_getFileLocation(CXIdxLoc location, 787 CXIdxClientFile *indexFile, 788 CXFile *file, 789 unsigned *line, 790 unsigned *column, 791 unsigned *offset) { 792 if (indexFile) *indexFile = 0; 793 if (file) *file = 0; 794 if (line) *line = 0; 795 if (column) *column = 0; 796 if (offset) *offset = 0; 797 798 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 799 if (!location.ptr_data[0] || Loc.isInvalid()) 800 return; 801 802 IndexingContext &IndexCtx = 803 *static_cast<IndexingContext*>(location.ptr_data[0]); 804 IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset); 805 } 806 807 CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) { 808 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 809 if (!location.ptr_data[0] || Loc.isInvalid()) 810 return clang_getNullLocation(); 811 812 IndexingContext &IndexCtx = 813 *static_cast<IndexingContext*>(location.ptr_data[0]); 814 return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc); 815 } 816 817 } // end: extern "C" 818 819