Indexing.cpp revision 3791814b2c5efb3986ec4dd40c75c9d28f325222
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 31using namespace clang; 32using namespace cxstring; 33using namespace cxtu; 34using namespace cxindex; 35 36static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx); 37 38namespace { 39 40//===----------------------------------------------------------------------===// 41// IndexPPCallbacks 42//===----------------------------------------------------------------------===// 43 44class IndexPPCallbacks : public PPCallbacks { 45 Preprocessor &PP; 46 IndexingContext &IndexCtx; 47 bool IsMainFileEntered; 48 49public: 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 105class IndexingConsumer : public ASTConsumer { 106 IndexingContext &IndexCtx; 107 108public: 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 159class CaptureDiagnosticConsumer : public DiagnosticConsumer { 160 SmallVector<StoredDiagnostic, 4> Errors; 161public: 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 178class IndexingFrontendAction : public ASTFrontendAction { 179 IndexingContext IndexCtx; 180 CXTranslationUnit CXTU; 181 182public: 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 216struct 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 232struct 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 244static 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 bool OnlyLocalDecls = false; 373 bool PrecompilePreamble = false; 374 bool CacheCodeCompletionResults = false; 375 PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts(); 376 PPOpts.DetailedRecord = false; 377 PPOpts.AllowPCHWithCompilerErrors = true; 378 379 if (requestedToGetTU) { 380 OnlyLocalDecls = CXXIdx->getOnlyLocalDecls(); 381 PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble; 382 // FIXME: Add a flag for modules. 383 CacheCodeCompletionResults 384 = TU_options & CXTranslationUnit_CacheCompletionResults; 385 if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) { 386 PPOpts.DetailedRecord = true; 387 } 388 } 389 390 DiagnosticErrorTrap DiagTrap(*Diags); 391 bool Success = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags, 392 IndexAction.get(), 393 Unit, 394 Persistent, 395 CXXIdx->getClangResourcesPath(), 396 OnlyLocalDecls, 397 /*CaptureDiagnostics=*/true, 398 PrecompilePreamble, 399 CacheCodeCompletionResults); 400 if (DiagTrap.hasErrorOccurred() && CXXIdx->getDisplayDiagnostics()) 401 printDiagsToStderr(Unit); 402 403 if (!Success) 404 return; 405 406 if (out_TU) 407 *out_TU = CXTU->takeTU(); 408 409 ITUI->result = 0; // success. 410} 411 412//===----------------------------------------------------------------------===// 413// clang_indexTranslationUnit Implementation 414//===----------------------------------------------------------------------===// 415 416namespace { 417 418struct IndexTranslationUnitInfo { 419 CXIndexAction idxAction; 420 CXClientData client_data; 421 IndexerCallbacks *index_callbacks; 422 unsigned index_callbacks_size; 423 unsigned index_options; 424 CXTranslationUnit TU; 425 int result; 426}; 427 428} // anonymous namespace 429 430static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) { 431 Preprocessor &PP = Unit.getPreprocessor(); 432 if (!PP.getPreprocessingRecord()) 433 return; 434 435 PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); 436 437 // FIXME: Only deserialize inclusion directives. 438 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 439 // that it depends on. 440 441 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 442 PreprocessingRecord::iterator I, E; 443 if (OnlyLocal) { 444 I = PPRec.local_begin(); 445 E = PPRec.local_end(); 446 } else { 447 I = PPRec.begin(); 448 E = PPRec.end(); 449 } 450 451 for (; I != E; ++I) { 452 PreprocessedEntity *PPE = *I; 453 454 if (InclusionDirective *ID = dyn_cast<InclusionDirective>(PPE)) { 455 IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(), 456 ID->getFile(), ID->getKind() == InclusionDirective::Import, 457 !ID->wasInQuotes()); 458 } 459 } 460} 461 462static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) { 463 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 464 // that it depends on. 465 466 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 467 468 if (OnlyLocal) { 469 for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(), 470 TLEnd = Unit.top_level_end(); 471 TL != TLEnd; ++TL) { 472 IdxCtx.indexTopLevelDecl(*TL); 473 if (IdxCtx.shouldAbort()) 474 return; 475 } 476 477 } else { 478 TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl(); 479 for (TranslationUnitDecl::decl_iterator 480 I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) { 481 IdxCtx.indexTopLevelDecl(*I); 482 if (IdxCtx.shouldAbort()) 483 return; 484 } 485 } 486} 487 488static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) { 489 if (!IdxCtx.hasDiagnosticCallback()) 490 return; 491 492 CXDiagnosticSetImpl *DiagSet = cxdiag::lazyCreateDiags(TU); 493 IdxCtx.handleDiagnosticSet(DiagSet); 494} 495 496static void clang_indexTranslationUnit_Impl(void *UserData) { 497 IndexTranslationUnitInfo *ITUI = 498 static_cast<IndexTranslationUnitInfo*>(UserData); 499 CXTranslationUnit TU = ITUI->TU; 500 CXClientData client_data = ITUI->client_data; 501 IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; 502 unsigned index_callbacks_size = ITUI->index_callbacks_size; 503 unsigned index_options = ITUI->index_options; 504 ITUI->result = 1; // init as error. 505 506 if (!TU) 507 return; 508 if (!client_index_callbacks || index_callbacks_size == 0) 509 return; 510 511 CIndexer *CXXIdx = (CIndexer*)TU->CIdx; 512 if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing)) 513 setThreadBackgroundPriority(); 514 515 IndexerCallbacks CB; 516 memset(&CB, 0, sizeof(CB)); 517 unsigned ClientCBSize = index_callbacks_size < sizeof(CB) 518 ? index_callbacks_size : sizeof(CB); 519 memcpy(&CB, client_index_callbacks, ClientCBSize); 520 521 OwningPtr<IndexingContext> IndexCtx; 522 IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU)); 523 524 // Recover resources if we crash before exiting this method. 525 llvm::CrashRecoveryContextCleanupRegistrar<IndexingContext> 526 IndexCtxCleanup(IndexCtx.get()); 527 528 OwningPtr<IndexingConsumer> IndexConsumer; 529 IndexConsumer.reset(new IndexingConsumer(*IndexCtx)); 530 531 // Recover resources if we crash before exiting this method. 532 llvm::CrashRecoveryContextCleanupRegistrar<IndexingConsumer> 533 IndexConsumerCleanup(IndexConsumer.get()); 534 535 ASTUnit *Unit = static_cast<ASTUnit *>(TU->TUData); 536 if (!Unit) 537 return; 538 539 FileManager &FileMgr = Unit->getFileManager(); 540 541 if (Unit->getOriginalSourceFileName().empty()) 542 IndexCtx->enteredMainFile(0); 543 else 544 IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName())); 545 546 IndexConsumer->Initialize(Unit->getASTContext()); 547 548 indexPreprocessingRecord(*Unit, *IndexCtx); 549 indexTranslationUnit(*Unit, *IndexCtx); 550 indexDiagnostics(TU, *IndexCtx); 551 552 ITUI->result = 0; 553} 554 555//===----------------------------------------------------------------------===// 556// libclang public APIs. 557//===----------------------------------------------------------------------===// 558 559extern "C" { 560 561int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) { 562 return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory; 563} 564 565const CXIdxObjCContainerDeclInfo * 566clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) { 567 if (!DInfo) 568 return 0; 569 570 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 571 if (const ObjCContainerDeclInfo * 572 ContInfo = dyn_cast<ObjCContainerDeclInfo>(DI)) 573 return &ContInfo->ObjCContDeclInfo; 574 575 return 0; 576} 577 578const CXIdxObjCInterfaceDeclInfo * 579clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) { 580 if (!DInfo) 581 return 0; 582 583 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 584 if (const ObjCInterfaceDeclInfo * 585 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 586 return &InterInfo->ObjCInterDeclInfo; 587 588 return 0; 589} 590 591const CXIdxObjCCategoryDeclInfo * 592clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){ 593 if (!DInfo) 594 return 0; 595 596 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 597 if (const ObjCCategoryDeclInfo * 598 CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI)) 599 return &CatInfo->ObjCCatDeclInfo; 600 601 return 0; 602} 603 604const CXIdxObjCProtocolRefListInfo * 605clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) { 606 if (!DInfo) 607 return 0; 608 609 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 610 611 if (const ObjCInterfaceDeclInfo * 612 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 613 return InterInfo->ObjCInterDeclInfo.protocols; 614 615 if (const ObjCProtocolDeclInfo * 616 ProtInfo = dyn_cast<ObjCProtocolDeclInfo>(DI)) 617 return &ProtInfo->ObjCProtoRefListInfo; 618 619 if (const ObjCCategoryDeclInfo *CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI)) 620 return CatInfo->ObjCCatDeclInfo.protocols; 621 622 return 0; 623} 624 625const CXIdxObjCPropertyDeclInfo * 626clang_index_getObjCPropertyDeclInfo(const CXIdxDeclInfo *DInfo) { 627 if (!DInfo) 628 return 0; 629 630 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 631 if (const ObjCPropertyDeclInfo *PropInfo = dyn_cast<ObjCPropertyDeclInfo>(DI)) 632 return &PropInfo->ObjCPropDeclInfo; 633 634 return 0; 635} 636 637const CXIdxIBOutletCollectionAttrInfo * 638clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) { 639 if (!AInfo) 640 return 0; 641 642 const AttrInfo *DI = static_cast<const AttrInfo *>(AInfo); 643 if (const IBOutletCollectionInfo * 644 IBInfo = dyn_cast<IBOutletCollectionInfo>(DI)) 645 return &IBInfo->IBCollInfo; 646 647 return 0; 648} 649 650const CXIdxCXXClassDeclInfo * 651clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) { 652 if (!DInfo) 653 return 0; 654 655 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 656 if (const CXXClassDeclInfo *ClassInfo = dyn_cast<CXXClassDeclInfo>(DI)) 657 return &ClassInfo->CXXClassInfo; 658 659 return 0; 660} 661 662CXIdxClientContainer 663clang_index_getClientContainer(const CXIdxContainerInfo *info) { 664 if (!info) 665 return 0; 666 const ContainerInfo *Container = static_cast<const ContainerInfo *>(info); 667 return Container->IndexCtx->getClientContainerForDC(Container->DC); 668} 669 670void clang_index_setClientContainer(const CXIdxContainerInfo *info, 671 CXIdxClientContainer client) { 672 if (!info) 673 return; 674 const ContainerInfo *Container = static_cast<const ContainerInfo *>(info); 675 Container->IndexCtx->addContainerInMap(Container->DC, client); 676} 677 678CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) { 679 if (!info) 680 return 0; 681 const EntityInfo *Entity = static_cast<const EntityInfo *>(info); 682 return Entity->IndexCtx->getClientEntity(Entity->Dcl); 683} 684 685void clang_index_setClientEntity(const CXIdxEntityInfo *info, 686 CXIdxClientEntity client) { 687 if (!info) 688 return; 689 const EntityInfo *Entity = static_cast<const EntityInfo *>(info); 690 Entity->IndexCtx->setClientEntity(Entity->Dcl, client); 691} 692 693CXIndexAction clang_IndexAction_create(CXIndex CIdx) { 694 // For now, CXIndexAction is featureless. 695 return CIdx; 696} 697 698void clang_IndexAction_dispose(CXIndexAction idxAction) { 699 // For now, CXIndexAction is featureless. 700} 701 702int clang_indexSourceFile(CXIndexAction idxAction, 703 CXClientData client_data, 704 IndexerCallbacks *index_callbacks, 705 unsigned index_callbacks_size, 706 unsigned index_options, 707 const char *source_filename, 708 const char * const *command_line_args, 709 int num_command_line_args, 710 struct CXUnsavedFile *unsaved_files, 711 unsigned num_unsaved_files, 712 CXTranslationUnit *out_TU, 713 unsigned TU_options) { 714 715 IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks, 716 index_callbacks_size, index_options, 717 source_filename, command_line_args, 718 num_command_line_args, unsaved_files, 719 num_unsaved_files, out_TU, TU_options, 0 }; 720 721 if (getenv("LIBCLANG_NOTHREADS")) { 722 clang_indexSourceFile_Impl(&ITUI); 723 return ITUI.result; 724 } 725 726 llvm::CrashRecoveryContext CRC; 727 728 if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) { 729 fprintf(stderr, "libclang: crash detected during indexing source file: {\n"); 730 fprintf(stderr, " 'source_filename' : '%s'\n", source_filename); 731 fprintf(stderr, " 'command_line_args' : ["); 732 for (int i = 0; i != num_command_line_args; ++i) { 733 if (i) 734 fprintf(stderr, ", "); 735 fprintf(stderr, "'%s'", command_line_args[i]); 736 } 737 fprintf(stderr, "],\n"); 738 fprintf(stderr, " 'unsaved_files' : ["); 739 for (unsigned i = 0; i != num_unsaved_files; ++i) { 740 if (i) 741 fprintf(stderr, ", "); 742 fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename, 743 unsaved_files[i].Length); 744 } 745 fprintf(stderr, "],\n"); 746 fprintf(stderr, " 'options' : %d,\n", TU_options); 747 fprintf(stderr, "}\n"); 748 749 return 1; 750 } else if (getenv("LIBCLANG_RESOURCE_USAGE")) { 751 if (out_TU) 752 PrintLibclangResourceUsage(*out_TU); 753 } 754 755 return ITUI.result; 756} 757 758int clang_indexTranslationUnit(CXIndexAction idxAction, 759 CXClientData client_data, 760 IndexerCallbacks *index_callbacks, 761 unsigned index_callbacks_size, 762 unsigned index_options, 763 CXTranslationUnit TU) { 764 765 IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks, 766 index_callbacks_size, index_options, TU, 767 0 }; 768 769 if (getenv("LIBCLANG_NOTHREADS")) { 770 clang_indexTranslationUnit_Impl(&ITUI); 771 return ITUI.result; 772 } 773 774 llvm::CrashRecoveryContext CRC; 775 776 if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) { 777 fprintf(stderr, "libclang: crash detected during indexing TU\n"); 778 779 return 1; 780 } 781 782 return ITUI.result; 783} 784 785void clang_indexLoc_getFileLocation(CXIdxLoc location, 786 CXIdxClientFile *indexFile, 787 CXFile *file, 788 unsigned *line, 789 unsigned *column, 790 unsigned *offset) { 791 if (indexFile) *indexFile = 0; 792 if (file) *file = 0; 793 if (line) *line = 0; 794 if (column) *column = 0; 795 if (offset) *offset = 0; 796 797 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 798 if (!location.ptr_data[0] || Loc.isInvalid()) 799 return; 800 801 IndexingContext &IndexCtx = 802 *static_cast<IndexingContext*>(location.ptr_data[0]); 803 IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset); 804} 805 806CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) { 807 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 808 if (!location.ptr_data[0] || Loc.isInvalid()) 809 return clang_getNullLocation(); 810 811 IndexingContext &IndexCtx = 812 *static_cast<IndexingContext*>(location.ptr_data[0]); 813 return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc); 814} 815 816} // end: extern "C" 817 818