Indexing.cpp revision 991bf49f68e8caeb900dd9738712b861073363d9
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 "CIndexer.h" 16 17#include "clang/Frontend/ASTUnit.h" 18#include "clang/Frontend/CompilerInvocation.h" 19#include "clang/Frontend/CompilerInstance.h" 20#include "clang/Frontend/Utils.h" 21#include "clang/Sema/SemaConsumer.h" 22#include "clang/AST/ASTConsumer.h" 23#include "clang/AST/DeclVisitor.h" 24#include "clang/Lex/Preprocessor.h" 25#include "clang/Lex/PPCallbacks.h" 26#include "llvm/Support/MemoryBuffer.h" 27#include "llvm/Support/CrashRecoveryContext.h" 28 29using namespace clang; 30using namespace cxstring; 31using namespace cxtu; 32using namespace cxindex; 33 34namespace { 35 36//===----------------------------------------------------------------------===// 37// IndexPPCallbacks 38//===----------------------------------------------------------------------===// 39 40class IndexPPCallbacks : public PPCallbacks { 41 Preprocessor &PP; 42 IndexingContext &IndexCtx; 43 bool IsMainFileEntered; 44 45public: 46 IndexPPCallbacks(Preprocessor &PP, IndexingContext &indexCtx) 47 : PP(PP), IndexCtx(indexCtx), IsMainFileEntered(false) { } 48 49 virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason, 50 SrcMgr::CharacteristicKind FileType, FileID PrevFID) { 51 if (IsMainFileEntered) 52 return; 53 54 SourceManager &SM = PP.getSourceManager(); 55 SourceLocation MainFileLoc = SM.getLocForStartOfFile(SM.getMainFileID()); 56 57 if (Loc == MainFileLoc && Reason == PPCallbacks::EnterFile) { 58 IsMainFileEntered = true; 59 IndexCtx.enteredMainFile(SM.getFileEntryForID(SM.getMainFileID())); 60 } 61 } 62 63 virtual void InclusionDirective(SourceLocation HashLoc, 64 const Token &IncludeTok, 65 StringRef FileName, 66 bool IsAngled, 67 const FileEntry *File, 68 SourceLocation EndLoc, 69 StringRef SearchPath, 70 StringRef RelativePath) { 71 bool isImport = (IncludeTok.is(tok::identifier) && 72 IncludeTok.getIdentifierInfo()->getPPKeywordID() == tok::pp_import); 73 IndexCtx.ppIncludedFile(HashLoc, FileName, File, isImport, IsAngled); 74 } 75 76 /// MacroDefined - This hook is called whenever a macro definition is seen. 77 virtual void MacroDefined(const Token &Id, const MacroInfo *MI) { 78 } 79 80 /// MacroUndefined - This hook is called whenever a macro #undef is seen. 81 /// MI is released immediately following this callback. 82 virtual void MacroUndefined(const Token &MacroNameTok, const MacroInfo *MI) { 83 } 84 85 /// MacroExpands - This is called by when a macro invocation is found. 86 virtual void MacroExpands(const Token &MacroNameTok, const MacroInfo* MI, 87 SourceRange Range) { 88 } 89 90 /// SourceRangeSkipped - This hook is called when a source range is skipped. 91 /// \param Range The SourceRange that was skipped. The range begins at the 92 /// #if/#else directive and ends after the #endif/#else directive. 93 virtual void SourceRangeSkipped(SourceRange Range) { 94 } 95}; 96 97//===----------------------------------------------------------------------===// 98// IndexingConsumer 99//===----------------------------------------------------------------------===// 100 101class IndexingConsumer : public ASTConsumer { 102 IndexingContext &IndexCtx; 103 104public: 105 explicit IndexingConsumer(IndexingContext &indexCtx) 106 : IndexCtx(indexCtx) { } 107 108 // ASTConsumer Implementation 109 110 virtual void Initialize(ASTContext &Context) { 111 IndexCtx.setASTContext(Context); 112 IndexCtx.startedTranslationUnit(); 113 } 114 115 virtual void HandleTranslationUnit(ASTContext &Ctx) { 116 } 117 118 virtual bool HandleTopLevelDecl(DeclGroupRef DG) { 119 IndexCtx.indexDeclGroupRef(DG); 120 return !IndexCtx.shouldAbort(); 121 } 122 123 /// \brief Handle the specified top-level declaration that occurred inside 124 /// and ObjC container. 125 virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) { 126 // They will be handled after the interface is seen first. 127 IndexCtx.addTUDeclInObjCContainer(D); 128 } 129 130 /// \brief This is called by the AST reader when deserializing things. 131 /// The default implementation forwards to HandleTopLevelDecl but we don't 132 /// care about them when indexing, so have an empty definition. 133 virtual void HandleInterestingDecl(DeclGroupRef D) {} 134}; 135 136//===----------------------------------------------------------------------===// 137// CaptureDiagnosticConsumer 138//===----------------------------------------------------------------------===// 139 140class CaptureDiagnosticConsumer : public DiagnosticConsumer { 141 SmallVector<StoredDiagnostic, 4> Errors; 142public: 143 144 virtual void HandleDiagnostic(DiagnosticsEngine::Level level, 145 const Diagnostic &Info) { 146 if (level >= DiagnosticsEngine::Error) 147 Errors.push_back(StoredDiagnostic(level, Info)); 148 } 149 150 DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { 151 return new IgnoringDiagConsumer(); 152 } 153}; 154 155//===----------------------------------------------------------------------===// 156// IndexingFrontendAction 157//===----------------------------------------------------------------------===// 158 159class IndexingFrontendAction : public ASTFrontendAction { 160 IndexingContext IndexCtx; 161 162public: 163 IndexingFrontendAction(CXClientData clientData, 164 IndexerCallbacks &indexCallbacks, 165 unsigned indexOptions, 166 CXTranslationUnit cxTU) 167 : IndexCtx(clientData, indexCallbacks, indexOptions, cxTU) { } 168 169 virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI, 170 StringRef InFile) { 171 IndexCtx.setASTContext(CI.getASTContext()); 172 Preprocessor &PP = CI.getPreprocessor(); 173 PP.addPPCallbacks(new IndexPPCallbacks(PP, IndexCtx)); 174 return new IndexingConsumer(IndexCtx); 175 } 176 177 virtual TranslationUnitKind getTranslationUnitKind() { return TU_Prefix; } 178 virtual bool hasCodeCompletionSupport() const { return false; } 179}; 180 181//===----------------------------------------------------------------------===// 182// clang_indexSourceFileUnit Implementation 183//===----------------------------------------------------------------------===// 184 185struct IndexSourceFileInfo { 186 CXIndexAction idxAction; 187 CXClientData client_data; 188 IndexerCallbacks *index_callbacks; 189 unsigned index_callbacks_size; 190 unsigned index_options; 191 const char *source_filename; 192 const char *const *command_line_args; 193 int num_command_line_args; 194 struct CXUnsavedFile *unsaved_files; 195 unsigned num_unsaved_files; 196 CXTranslationUnit *out_TU; 197 unsigned TU_options; 198 int result; 199}; 200 201struct MemBufferOwner { 202 SmallVector<const llvm::MemoryBuffer *, 8> Buffers; 203 204 ~MemBufferOwner() { 205 for (SmallVectorImpl<const llvm::MemoryBuffer *>::iterator 206 I = Buffers.begin(), E = Buffers.end(); I != E; ++I) 207 delete *I; 208 } 209}; 210 211} // anonymous namespace 212 213static void clang_indexSourceFile_Impl(void *UserData) { 214 IndexSourceFileInfo *ITUI = 215 static_cast<IndexSourceFileInfo*>(UserData); 216 CXIndex CIdx = (CXIndex)ITUI->idxAction; 217 CXClientData client_data = ITUI->client_data; 218 IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; 219 unsigned index_callbacks_size = ITUI->index_callbacks_size; 220 unsigned index_options = ITUI->index_options; 221 const char *source_filename = ITUI->source_filename; 222 const char * const *command_line_args = ITUI->command_line_args; 223 int num_command_line_args = ITUI->num_command_line_args; 224 struct CXUnsavedFile *unsaved_files = ITUI->unsaved_files; 225 unsigned num_unsaved_files = ITUI->num_unsaved_files; 226 CXTranslationUnit *out_TU = ITUI->out_TU; 227 unsigned TU_options = ITUI->TU_options; 228 ITUI->result = 1; // init as error. 229 230 if (out_TU) 231 *out_TU = 0; 232 bool requestedToGetTU = (out_TU != 0); 233 234 if (!CIdx) 235 return; 236 if (!client_index_callbacks || index_callbacks_size == 0) 237 return; 238 239 IndexerCallbacks CB; 240 memset(&CB, 0, sizeof(CB)); 241 unsigned ClientCBSize = index_callbacks_size < sizeof(CB) 242 ? index_callbacks_size : sizeof(CB); 243 memcpy(&CB, client_index_callbacks, ClientCBSize); 244 245 CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); 246 247 (void)CXXIdx; 248 (void)TU_options; 249 250 CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer(); 251 252 // Configure the diagnostics. 253 DiagnosticOptions DiagOpts; 254 llvm::IntrusiveRefCntPtr<DiagnosticsEngine> 255 Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args, 256 command_line_args, 257 CaptureDiag, 258 /*ShouldOwnClient=*/true)); 259 260 // Recover resources if we crash before exiting this function. 261 llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine, 262 llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> > 263 DiagCleanup(Diags.getPtr()); 264 265 llvm::OwningPtr<std::vector<const char *> > 266 Args(new std::vector<const char*>()); 267 268 // Recover resources if we crash before exiting this method. 269 llvm::CrashRecoveryContextCleanupRegistrar<std::vector<const char*> > 270 ArgsCleanup(Args.get()); 271 272 Args->insert(Args->end(), command_line_args, 273 command_line_args + num_command_line_args); 274 275 // The 'source_filename' argument is optional. If the caller does not 276 // specify it then it is assumed that the source file is specified 277 // in the actual argument list. 278 // Put the source file after command_line_args otherwise if '-x' flag is 279 // present it will be unused. 280 if (source_filename) 281 Args->push_back(source_filename); 282 283 llvm::IntrusiveRefCntPtr<CompilerInvocation> 284 CInvok(createInvocationFromCommandLine(*Args, Diags)); 285 286 if (!CInvok) 287 return; 288 289 // Recover resources if we crash before exiting this function. 290 llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation, 291 llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> > 292 CInvokCleanup(CInvok.getPtr()); 293 294 if (CInvok->getFrontendOpts().Inputs.empty()) 295 return; 296 297 llvm::OwningPtr<MemBufferOwner> BufOwner(new MemBufferOwner()); 298 299 // Recover resources if we crash before exiting this method. 300 llvm::CrashRecoveryContextCleanupRegistrar<MemBufferOwner> 301 BufOwnerCleanup(BufOwner.get()); 302 303 for (unsigned I = 0; I != num_unsaved_files; ++I) { 304 StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); 305 const llvm::MemoryBuffer *Buffer 306 = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); 307 CInvok->getPreprocessorOpts().addRemappedFile(unsaved_files[I].Filename, Buffer); 308 BufOwner->Buffers.push_back(Buffer); 309 } 310 311 // Since libclang is primarily used by batch tools dealing with 312 // (often very broken) source code, where spell-checking can have a 313 // significant negative impact on performance (particularly when 314 // precompiled headers are involved), we disable it. 315 CInvok->getLangOpts()->SpellChecking = false; 316 317 if (!requestedToGetTU) 318 CInvok->getPreprocessorOpts().DetailedRecord = false; 319 320 ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags, 321 /*CaptureDiagnostics=*/true); 322 llvm::OwningPtr<CXTUOwner> CXTU(new CXTUOwner(MakeCXTranslationUnit(Unit))); 323 324 // Recover resources if we crash before exiting this method. 325 llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner> 326 CXTUCleanup(CXTU.get()); 327 328 llvm::OwningPtr<IndexingFrontendAction> IndexAction; 329 IndexAction.reset(new IndexingFrontendAction(client_data, CB, 330 index_options, CXTU->getTU())); 331 332 // Recover resources if we crash before exiting this method. 333 llvm::CrashRecoveryContextCleanupRegistrar<IndexingFrontendAction> 334 IndexActionCleanup(IndexAction.get()); 335 336 Unit = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags, 337 IndexAction.get(), 338 Unit); 339 if (!Unit) 340 return; 341 342 // FIXME: Set state of the ASTUnit according to the TU_options. 343 if (out_TU) 344 *out_TU = CXTU->takeTU(); 345 346 ITUI->result = 0; // success. 347} 348 349//===----------------------------------------------------------------------===// 350// clang_indexTranslationUnit Implementation 351//===----------------------------------------------------------------------===// 352 353namespace { 354 355struct IndexTranslationUnitInfo { 356 CXIndexAction idxAction; 357 CXClientData client_data; 358 IndexerCallbacks *index_callbacks; 359 unsigned index_callbacks_size; 360 unsigned index_options; 361 CXTranslationUnit TU; 362 int result; 363}; 364 365} // anonymous namespace 366 367static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) { 368 Preprocessor &PP = Unit.getPreprocessor(); 369 if (!PP.getPreprocessingRecord()) 370 return; 371 372 PreprocessingRecord &PPRec = *PP.getPreprocessingRecord(); 373 374 // FIXME: Only deserialize inclusion directives. 375 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 376 // that it depends on. 377 378 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 379 PreprocessingRecord::iterator I, E; 380 if (OnlyLocal) { 381 I = PPRec.local_begin(); 382 E = PPRec.local_end(); 383 } else { 384 I = PPRec.begin(); 385 E = PPRec.end(); 386 } 387 388 for (; I != E; ++I) { 389 PreprocessedEntity *PPE = *I; 390 391 if (InclusionDirective *ID = dyn_cast<InclusionDirective>(PPE)) { 392 IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(), 393 ID->getFile(), ID->getKind() == InclusionDirective::Import, 394 !ID->wasInQuotes()); 395 } 396 } 397} 398 399static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) { 400 // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module 401 // that it depends on. 402 403 bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls(); 404 405 if (OnlyLocal) { 406 for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(), 407 TLEnd = Unit.top_level_end(); 408 TL != TLEnd; ++TL) { 409 IdxCtx.indexTopLevelDecl(*TL); 410 if (IdxCtx.shouldAbort()) 411 return; 412 } 413 414 } else { 415 TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl(); 416 for (TranslationUnitDecl::decl_iterator 417 I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) { 418 IdxCtx.indexTopLevelDecl(*I); 419 if (IdxCtx.shouldAbort()) 420 return; 421 } 422 } 423} 424 425static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) { 426 // FIXME: Create a CXDiagnosticSet from TU; 427 // IdxCtx.handleDiagnosticSet(Set); 428} 429 430static void clang_indexTranslationUnit_Impl(void *UserData) { 431 IndexTranslationUnitInfo *ITUI = 432 static_cast<IndexTranslationUnitInfo*>(UserData); 433 CXTranslationUnit TU = ITUI->TU; 434 CXClientData client_data = ITUI->client_data; 435 IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks; 436 unsigned index_callbacks_size = ITUI->index_callbacks_size; 437 unsigned index_options = ITUI->index_options; 438 ITUI->result = 1; // init as error. 439 440 if (!TU) 441 return; 442 if (!client_index_callbacks || index_callbacks_size == 0) 443 return; 444 445 IndexerCallbacks CB; 446 memset(&CB, 0, sizeof(CB)); 447 unsigned ClientCBSize = index_callbacks_size < sizeof(CB) 448 ? index_callbacks_size : sizeof(CB); 449 memcpy(&CB, client_index_callbacks, ClientCBSize); 450 451 llvm::OwningPtr<IndexingContext> IndexCtx; 452 IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU)); 453 454 // Recover resources if we crash before exiting this method. 455 llvm::CrashRecoveryContextCleanupRegistrar<IndexingContext> 456 IndexCtxCleanup(IndexCtx.get()); 457 458 llvm::OwningPtr<IndexingConsumer> IndexConsumer; 459 IndexConsumer.reset(new IndexingConsumer(*IndexCtx)); 460 461 // Recover resources if we crash before exiting this method. 462 llvm::CrashRecoveryContextCleanupRegistrar<IndexingConsumer> 463 IndexConsumerCleanup(IndexConsumer.get()); 464 465 ASTUnit *Unit = static_cast<ASTUnit *>(TU->TUData); 466 if (!Unit) 467 return; 468 469 FileManager &FileMgr = Unit->getFileManager(); 470 471 if (Unit->getOriginalSourceFileName().empty()) 472 IndexCtx->enteredMainFile(0); 473 else 474 IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName())); 475 476 IndexConsumer->Initialize(Unit->getASTContext()); 477 478 indexPreprocessingRecord(*Unit, *IndexCtx); 479 indexTranslationUnit(*Unit, *IndexCtx); 480 indexDiagnostics(TU, *IndexCtx); 481 482 ITUI->result = 0; 483} 484 485//===----------------------------------------------------------------------===// 486// libclang public APIs. 487//===----------------------------------------------------------------------===// 488 489extern "C" { 490 491int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) { 492 return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory; 493} 494 495const CXIdxObjCContainerDeclInfo * 496clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) { 497 if (!DInfo) 498 return 0; 499 500 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 501 if (const ObjCContainerDeclInfo * 502 ContInfo = dyn_cast<ObjCContainerDeclInfo>(DI)) 503 return &ContInfo->ObjCContDeclInfo; 504 505 return 0; 506} 507 508const CXIdxObjCInterfaceDeclInfo * 509clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) { 510 if (!DInfo) 511 return 0; 512 513 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 514 if (const ObjCInterfaceDeclInfo * 515 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 516 return &InterInfo->ObjCInterDeclInfo; 517 518 return 0; 519} 520 521const CXIdxObjCCategoryDeclInfo * 522clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){ 523 if (!DInfo) 524 return 0; 525 526 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 527 if (const ObjCCategoryDeclInfo * 528 CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI)) 529 return &CatInfo->ObjCCatDeclInfo; 530 531 return 0; 532} 533 534const CXIdxObjCProtocolRefListInfo * 535clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) { 536 if (!DInfo) 537 return 0; 538 539 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 540 541 if (const ObjCInterfaceDeclInfo * 542 InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI)) 543 return InterInfo->ObjCInterDeclInfo.protocols; 544 545 if (const ObjCProtocolDeclInfo * 546 ProtInfo = dyn_cast<ObjCProtocolDeclInfo>(DI)) 547 return &ProtInfo->ObjCProtoRefListInfo; 548 549 return 0; 550} 551 552const CXIdxIBOutletCollectionAttrInfo * 553clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) { 554 if (!AInfo) 555 return 0; 556 557 const AttrInfo *DI = static_cast<const AttrInfo *>(AInfo); 558 if (const IBOutletCollectionInfo * 559 IBInfo = dyn_cast<IBOutletCollectionInfo>(DI)) 560 return &IBInfo->IBCollInfo; 561 562 return 0; 563} 564 565const CXIdxCXXClassDeclInfo * 566clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) { 567 if (!DInfo) 568 return 0; 569 570 const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo); 571 if (const CXXClassDeclInfo *ClassInfo = dyn_cast<CXXClassDeclInfo>(DI)) 572 return &ClassInfo->CXXClassInfo; 573 574 return 0; 575} 576 577CXIdxClientContainer 578clang_index_getClientContainer(const CXIdxContainerInfo *info) { 579 if (!info) 580 return 0; 581 ContainerInfo *Container = (ContainerInfo*)info; 582 return Container->IndexCtx->getClientContainerForDC(Container->DC); 583} 584 585void clang_index_setClientContainer(const CXIdxContainerInfo *info, 586 CXIdxClientContainer client) { 587 if (!info) 588 return; 589 ContainerInfo *Container = (ContainerInfo*)info; 590 Container->IndexCtx->addContainerInMap(Container->DC, client); 591} 592 593CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) { 594 if (!info) 595 return 0; 596 EntityInfo *Entity = (EntityInfo*)info; 597 return Entity->IndexCtx->getClientEntity(Entity->Dcl); 598} 599 600void clang_index_setClientEntity(const CXIdxEntityInfo *info, 601 CXIdxClientEntity client) { 602 if (!info) 603 return; 604 EntityInfo *Entity = (EntityInfo*)info; 605 Entity->IndexCtx->setClientEntity(Entity->Dcl, client); 606} 607 608CXIndexAction clang_IndexAction_create(CXIndex CIdx) { 609 // For now, CXIndexAction is featureless. 610 return CIdx; 611} 612 613void clang_IndexAction_dispose(CXIndexAction idxAction) { 614 // For now, CXIndexAction is featureless. 615} 616 617int clang_indexSourceFile(CXIndexAction idxAction, 618 CXClientData client_data, 619 IndexerCallbacks *index_callbacks, 620 unsigned index_callbacks_size, 621 unsigned index_options, 622 const char *source_filename, 623 const char * const *command_line_args, 624 int num_command_line_args, 625 struct CXUnsavedFile *unsaved_files, 626 unsigned num_unsaved_files, 627 CXTranslationUnit *out_TU, 628 unsigned TU_options) { 629 630 IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks, 631 index_callbacks_size, index_options, 632 source_filename, command_line_args, 633 num_command_line_args, unsaved_files, 634 num_unsaved_files, out_TU, TU_options, 0 }; 635 636 if (getenv("LIBCLANG_NOTHREADS")) { 637 clang_indexSourceFile_Impl(&ITUI); 638 return ITUI.result; 639 } 640 641 llvm::CrashRecoveryContext CRC; 642 643 if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) { 644 fprintf(stderr, "libclang: crash detected during indexing source file: {\n"); 645 fprintf(stderr, " 'source_filename' : '%s'\n", source_filename); 646 fprintf(stderr, " 'command_line_args' : ["); 647 for (int i = 0; i != num_command_line_args; ++i) { 648 if (i) 649 fprintf(stderr, ", "); 650 fprintf(stderr, "'%s'", command_line_args[i]); 651 } 652 fprintf(stderr, "],\n"); 653 fprintf(stderr, " 'unsaved_files' : ["); 654 for (unsigned i = 0; i != num_unsaved_files; ++i) { 655 if (i) 656 fprintf(stderr, ", "); 657 fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename, 658 unsaved_files[i].Length); 659 } 660 fprintf(stderr, "],\n"); 661 fprintf(stderr, " 'options' : %d,\n", TU_options); 662 fprintf(stderr, "}\n"); 663 664 return 1; 665 } else if (getenv("LIBCLANG_RESOURCE_USAGE")) { 666 if (out_TU) 667 PrintLibclangResourceUsage(*out_TU); 668 } 669 670 return ITUI.result; 671} 672 673int clang_indexTranslationUnit(CXIndexAction idxAction, 674 CXClientData client_data, 675 IndexerCallbacks *index_callbacks, 676 unsigned index_callbacks_size, 677 unsigned index_options, 678 CXTranslationUnit TU) { 679 680 IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks, 681 index_callbacks_size, index_options, TU, 682 0 }; 683 684 if (getenv("LIBCLANG_NOTHREADS")) { 685 clang_indexTranslationUnit_Impl(&ITUI); 686 return ITUI.result; 687 } 688 689 llvm::CrashRecoveryContext CRC; 690 691 if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) { 692 fprintf(stderr, "libclang: crash detected during indexing TU\n"); 693 694 return 1; 695 } 696 697 return ITUI.result; 698} 699 700void clang_indexLoc_getFileLocation(CXIdxLoc location, 701 CXIdxClientFile *indexFile, 702 CXFile *file, 703 unsigned *line, 704 unsigned *column, 705 unsigned *offset) { 706 if (indexFile) *indexFile = 0; 707 if (file) *file = 0; 708 if (line) *line = 0; 709 if (column) *column = 0; 710 if (offset) *offset = 0; 711 712 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 713 if (!location.ptr_data[0] || Loc.isInvalid()) 714 return; 715 716 IndexingContext &IndexCtx = 717 *static_cast<IndexingContext*>(location.ptr_data[0]); 718 IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset); 719} 720 721CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) { 722 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 723 if (!location.ptr_data[0] || Loc.isInvalid()) 724 return clang_getNullLocation(); 725 726 IndexingContext &IndexCtx = 727 *static_cast<IndexingContext*>(location.ptr_data[0]); 728 return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc); 729} 730 731} // end: extern "C" 732 733