Indexing.cpp revision 7383550585795db4bd5ff635b650f01d374e91aa 
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  CaptureDiagnosticConsumer *CaptureDiag = new CaptureDiagnosticConsumer();
248
249  // Configure the diagnostics.
250  DiagnosticOptions DiagOpts;
251  llvm::IntrusiveRefCntPtr<DiagnosticsEngine>
252    Diags(CompilerInstance::createDiagnostics(DiagOpts, num_command_line_args,
253                                                command_line_args,
254                                                CaptureDiag,
255                                                /*ShouldOwnClient=*/true,
256                                                /*ShouldCloneClient=*/false));
257
258  // Recover resources if we crash before exiting this function.
259  llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
260    llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
261    DiagCleanup(Diags.getPtr());
262
263  llvm::OwningPtr<std::vector<const char *> >
264    Args(new std::vector<const char*>());
265
266  // Recover resources if we crash before exiting this method.
267  llvm::CrashRecoveryContextCleanupRegistrar<std::vector<const char*> >
268    ArgsCleanup(Args.get());
269
270  Args->insert(Args->end(), command_line_args,
271               command_line_args + num_command_line_args);
272
273  // The 'source_filename' argument is optional.  If the caller does not
274  // specify it then it is assumed that the source file is specified
275  // in the actual argument list.
276  // Put the source file after command_line_args otherwise if '-x' flag is
277  // present it will be unused.
278  if (source_filename)
279    Args->push_back(source_filename);
280
281  llvm::IntrusiveRefCntPtr<CompilerInvocation>
282    CInvok(createInvocationFromCommandLine(*Args, Diags));
283
284  if (!CInvok)
285    return;
286
287  // Recover resources if we crash before exiting this function.
288  llvm::CrashRecoveryContextCleanupRegistrar<CompilerInvocation,
289    llvm::CrashRecoveryContextReleaseRefCleanup<CompilerInvocation> >
290    CInvokCleanup(CInvok.getPtr());
291
292  if (CInvok->getFrontendOpts().Inputs.empty())
293    return;
294
295  llvm::OwningPtr<MemBufferOwner> BufOwner(new MemBufferOwner());
296
297  // Recover resources if we crash before exiting this method.
298  llvm::CrashRecoveryContextCleanupRegistrar<MemBufferOwner>
299    BufOwnerCleanup(BufOwner.get());
300
301  for (unsigned I = 0; I != num_unsaved_files; ++I) {
302    StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length);
303    const llvm::MemoryBuffer *Buffer
304      = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename);
305    CInvok->getPreprocessorOpts().addRemappedFile(unsaved_files[I].Filename, Buffer);
306    BufOwner->Buffers.push_back(Buffer);
307  }
308
309  // Since libclang is primarily used by batch tools dealing with
310  // (often very broken) source code, where spell-checking can have a
311  // significant negative impact on performance (particularly when
312  // precompiled headers are involved), we disable it.
313  CInvok->getLangOpts()->SpellChecking = false;
314
315  if (!requestedToGetTU)
316    CInvok->getPreprocessorOpts().DetailedRecord = false;
317
318  ASTUnit *Unit = ASTUnit::create(CInvok.getPtr(), Diags,
319                                  /*CaptureDiagnostics=*/true);
320  llvm::OwningPtr<CXTUOwner> CXTU(new CXTUOwner(MakeCXTranslationUnit(Unit)));
321
322  // Recover resources if we crash before exiting this method.
323  llvm::CrashRecoveryContextCleanupRegistrar<CXTUOwner>
324    CXTUCleanup(CXTU.get());
325
326  llvm::OwningPtr<IndexingFrontendAction> IndexAction;
327  IndexAction.reset(new IndexingFrontendAction(client_data, CB,
328                                               index_options, CXTU->getTU()));
329
330  // Recover resources if we crash before exiting this method.
331  llvm::CrashRecoveryContextCleanupRegistrar<IndexingFrontendAction>
332    IndexActionCleanup(IndexAction.get());
333
334  bool Persistent = requestedToGetTU;
335  StringRef ResourceFilesPath = CXXIdx->getClangResourcesPath();
336  bool OnlyLocalDecls = false;
337  bool CaptureDiagnostics = true;
338  bool PrecompilePreamble = false;
339  bool CacheCodeCompletionResults = false;
340  PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts();
341  PPOpts.DetailedRecord = false;
342  PPOpts.DetailedRecordIncludesNestedMacroExpansions = false;
343
344  if (requestedToGetTU) {
345    OnlyLocalDecls = CXXIdx->getOnlyLocalDecls();
346    PrecompilePreamble = TU_options & CXTranslationUnit_PrecompiledPreamble;
347    // FIXME: Add a flag for modules.
348    CacheCodeCompletionResults
349      = TU_options & CXTranslationUnit_CacheCompletionResults;
350    if (TU_options & CXTranslationUnit_DetailedPreprocessingRecord) {
351      PPOpts.DetailedRecord = true;
352      PPOpts.DetailedRecordIncludesNestedMacroExpansions
353          = (TU_options & CXTranslationUnit_NestedMacroExpansions);
354    }
355  }
356
357  Unit = ASTUnit::LoadFromCompilerInvocationAction(CInvok.getPtr(), Diags,
358                                                       IndexAction.get(),
359                                                       Unit,
360                                                       Persistent,
361                                                       ResourceFilesPath,
362                                                       OnlyLocalDecls,
363                                                       CaptureDiagnostics,
364                                                       PrecompilePreamble,
365                                                    CacheCodeCompletionResults);
366  if (!Unit)
367    return;
368
369  // FIXME: Set state of the ASTUnit according to the TU_options.
370  if (out_TU)
371    *out_TU = CXTU->takeTU();
372
373  ITUI->result = 0; // success.
374}
375
376//===----------------------------------------------------------------------===//
377// clang_indexTranslationUnit Implementation
378//===----------------------------------------------------------------------===//
379
380namespace {
381
382struct IndexTranslationUnitInfo {
383  CXIndexAction idxAction;
384  CXClientData client_data;
385  IndexerCallbacks *index_callbacks;
386  unsigned index_callbacks_size;
387  unsigned index_options;
388  CXTranslationUnit TU;
389  int result;
390};
391
392} // anonymous namespace
393
394static void indexPreprocessingRecord(ASTUnit &Unit, IndexingContext &IdxCtx) {
395  Preprocessor &PP = Unit.getPreprocessor();
396  if (!PP.getPreprocessingRecord())
397    return;
398
399  PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
400
401  // FIXME: Only deserialize inclusion directives.
402  // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module
403  // that it depends on.
404
405  bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls();
406  PreprocessingRecord::iterator I, E;
407  if (OnlyLocal) {
408    I = PPRec.local_begin();
409    E = PPRec.local_end();
410  } else {
411    I = PPRec.begin();
412    E = PPRec.end();
413  }
414
415  for (; I != E; ++I) {
416    PreprocessedEntity *PPE = *I;
417
418    if (InclusionDirective *ID = dyn_cast<InclusionDirective>(PPE)) {
419      IdxCtx.ppIncludedFile(ID->getSourceRange().getBegin(), ID->getFileName(),
420                     ID->getFile(), ID->getKind() == InclusionDirective::Import,
421                     !ID->wasInQuotes());
422    }
423  }
424}
425
426static void indexTranslationUnit(ASTUnit &Unit, IndexingContext &IdxCtx) {
427  // FIXME: Only deserialize stuff from the last chained PCH, not the PCH/Module
428  // that it depends on.
429
430  bool OnlyLocal = !Unit.isMainFileAST() && Unit.getOnlyLocalDecls();
431
432  if (OnlyLocal) {
433    for (ASTUnit::top_level_iterator TL = Unit.top_level_begin(),
434                                  TLEnd = Unit.top_level_end();
435           TL != TLEnd; ++TL) {
436      IdxCtx.indexTopLevelDecl(*TL);
437      if (IdxCtx.shouldAbort())
438        return;
439    }
440
441  } else {
442    TranslationUnitDecl *TUDecl = Unit.getASTContext().getTranslationUnitDecl();
443    for (TranslationUnitDecl::decl_iterator
444           I = TUDecl->decls_begin(), E = TUDecl->decls_end(); I != E; ++I) {
445      IdxCtx.indexTopLevelDecl(*I);
446      if (IdxCtx.shouldAbort())
447        return;
448    }
449  }
450}
451
452static void indexDiagnostics(CXTranslationUnit TU, IndexingContext &IdxCtx) {
453  // FIXME: Create a CXDiagnosticSet from TU;
454  // IdxCtx.handleDiagnosticSet(Set);
455}
456
457static void clang_indexTranslationUnit_Impl(void *UserData) {
458  IndexTranslationUnitInfo *ITUI =
459    static_cast<IndexTranslationUnitInfo*>(UserData);
460  CXTranslationUnit TU = ITUI->TU;
461  CXClientData client_data = ITUI->client_data;
462  IndexerCallbacks *client_index_callbacks = ITUI->index_callbacks;
463  unsigned index_callbacks_size = ITUI->index_callbacks_size;
464  unsigned index_options = ITUI->index_options;
465  ITUI->result = 1; // init as error.
466
467  if (!TU)
468    return;
469  if (!client_index_callbacks || index_callbacks_size == 0)
470    return;
471
472  IndexerCallbacks CB;
473  memset(&CB, 0, sizeof(CB));
474  unsigned ClientCBSize = index_callbacks_size < sizeof(CB)
475                                  ? index_callbacks_size : sizeof(CB);
476  memcpy(&CB, client_index_callbacks, ClientCBSize);
477
478  llvm::OwningPtr<IndexingContext> IndexCtx;
479  IndexCtx.reset(new IndexingContext(client_data, CB, index_options, TU));
480
481  // Recover resources if we crash before exiting this method.
482  llvm::CrashRecoveryContextCleanupRegistrar<IndexingContext>
483    IndexCtxCleanup(IndexCtx.get());
484
485  llvm::OwningPtr<IndexingConsumer> IndexConsumer;
486  IndexConsumer.reset(new IndexingConsumer(*IndexCtx));
487
488  // Recover resources if we crash before exiting this method.
489  llvm::CrashRecoveryContextCleanupRegistrar<IndexingConsumer>
490    IndexConsumerCleanup(IndexConsumer.get());
491
492  ASTUnit *Unit = static_cast<ASTUnit *>(TU->TUData);
493  if (!Unit)
494    return;
495
496  FileManager &FileMgr = Unit->getFileManager();
497
498  if (Unit->getOriginalSourceFileName().empty())
499    IndexCtx->enteredMainFile(0);
500  else
501    IndexCtx->enteredMainFile(FileMgr.getFile(Unit->getOriginalSourceFileName()));
502
503  IndexConsumer->Initialize(Unit->getASTContext());
504
505  indexPreprocessingRecord(*Unit, *IndexCtx);
506  indexTranslationUnit(*Unit, *IndexCtx);
507  indexDiagnostics(TU, *IndexCtx);
508
509  ITUI->result = 0;
510}
511
512//===----------------------------------------------------------------------===//
513// libclang public APIs.
514//===----------------------------------------------------------------------===//
515
516extern "C" {
517
518int clang_index_isEntityObjCContainerKind(CXIdxEntityKind K) {
519  return CXIdxEntity_ObjCClass <= K && K <= CXIdxEntity_ObjCCategory;
520}
521
522const CXIdxObjCContainerDeclInfo *
523clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *DInfo) {
524  if (!DInfo)
525    return 0;
526
527  const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
528  if (const ObjCContainerDeclInfo *
529        ContInfo = dyn_cast<ObjCContainerDeclInfo>(DI))
530    return &ContInfo->ObjCContDeclInfo;
531
532  return 0;
533}
534
535const CXIdxObjCInterfaceDeclInfo *
536clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *DInfo) {
537  if (!DInfo)
538    return 0;
539
540  const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
541  if (const ObjCInterfaceDeclInfo *
542        InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI))
543    return &InterInfo->ObjCInterDeclInfo;
544
545  return 0;
546}
547
548const CXIdxObjCCategoryDeclInfo *
549clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *DInfo){
550  if (!DInfo)
551    return 0;
552
553  const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
554  if (const ObjCCategoryDeclInfo *
555        CatInfo = dyn_cast<ObjCCategoryDeclInfo>(DI))
556    return &CatInfo->ObjCCatDeclInfo;
557
558  return 0;
559}
560
561const CXIdxObjCProtocolRefListInfo *
562clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *DInfo) {
563  if (!DInfo)
564    return 0;
565
566  const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
567
568  if (const ObjCInterfaceDeclInfo *
569        InterInfo = dyn_cast<ObjCInterfaceDeclInfo>(DI))
570    return InterInfo->ObjCInterDeclInfo.protocols;
571
572  if (const ObjCProtocolDeclInfo *
573        ProtInfo = dyn_cast<ObjCProtocolDeclInfo>(DI))
574    return &ProtInfo->ObjCProtoRefListInfo;
575
576  return 0;
577}
578
579const CXIdxIBOutletCollectionAttrInfo *
580clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *AInfo) {
581  if (!AInfo)
582    return 0;
583
584  const AttrInfo *DI = static_cast<const AttrInfo *>(AInfo);
585  if (const IBOutletCollectionInfo *
586        IBInfo = dyn_cast<IBOutletCollectionInfo>(DI))
587    return &IBInfo->IBCollInfo;
588
589  return 0;
590}
591
592const CXIdxCXXClassDeclInfo *
593clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *DInfo) {
594  if (!DInfo)
595    return 0;
596
597  const DeclInfo *DI = static_cast<const DeclInfo *>(DInfo);
598  if (const CXXClassDeclInfo *ClassInfo = dyn_cast<CXXClassDeclInfo>(DI))
599    return &ClassInfo->CXXClassInfo;
600
601  return 0;
602}
603
604CXIdxClientContainer
605clang_index_getClientContainer(const CXIdxContainerInfo *info) {
606  if (!info)
607    return 0;
608  ContainerInfo *Container = (ContainerInfo*)info;
609  return Container->IndexCtx->getClientContainerForDC(Container->DC);
610}
611
612void clang_index_setClientContainer(const CXIdxContainerInfo *info,
613                                    CXIdxClientContainer client) {
614  if (!info)
615    return;
616  ContainerInfo *Container = (ContainerInfo*)info;
617  Container->IndexCtx->addContainerInMap(Container->DC, client);
618}
619
620CXIdxClientEntity clang_index_getClientEntity(const CXIdxEntityInfo *info) {
621  if (!info)
622    return 0;
623  EntityInfo *Entity = (EntityInfo*)info;
624  return Entity->IndexCtx->getClientEntity(Entity->Dcl);
625}
626
627void clang_index_setClientEntity(const CXIdxEntityInfo *info,
628                                 CXIdxClientEntity client) {
629  if (!info)
630    return;
631  EntityInfo *Entity = (EntityInfo*)info;
632  Entity->IndexCtx->setClientEntity(Entity->Dcl, client);
633}
634
635CXIndexAction clang_IndexAction_create(CXIndex CIdx) {
636  // For now, CXIndexAction is featureless.
637  return CIdx;
638}
639
640void clang_IndexAction_dispose(CXIndexAction idxAction) {
641  // For now, CXIndexAction is featureless.
642}
643
644int clang_indexSourceFile(CXIndexAction idxAction,
645                          CXClientData client_data,
646                          IndexerCallbacks *index_callbacks,
647                          unsigned index_callbacks_size,
648                          unsigned index_options,
649                          const char *source_filename,
650                          const char * const *command_line_args,
651                          int num_command_line_args,
652                          struct CXUnsavedFile *unsaved_files,
653                          unsigned num_unsaved_files,
654                          CXTranslationUnit *out_TU,
655                          unsigned TU_options) {
656
657  IndexSourceFileInfo ITUI = { idxAction, client_data, index_callbacks,
658                               index_callbacks_size, index_options,
659                               source_filename, command_line_args,
660                               num_command_line_args, unsaved_files,
661                               num_unsaved_files, out_TU, TU_options, 0 };
662
663  if (getenv("LIBCLANG_NOTHREADS")) {
664    clang_indexSourceFile_Impl(&ITUI);
665    return ITUI.result;
666  }
667
668  llvm::CrashRecoveryContext CRC;
669
670  if (!RunSafely(CRC, clang_indexSourceFile_Impl, &ITUI)) {
671    fprintf(stderr, "libclang: crash detected during indexing source file: {\n");
672    fprintf(stderr, "  'source_filename' : '%s'\n", source_filename);
673    fprintf(stderr, "  'command_line_args' : [");
674    for (int i = 0; i != num_command_line_args; ++i) {
675      if (i)
676        fprintf(stderr, ", ");
677      fprintf(stderr, "'%s'", command_line_args[i]);
678    }
679    fprintf(stderr, "],\n");
680    fprintf(stderr, "  'unsaved_files' : [");
681    for (unsigned i = 0; i != num_unsaved_files; ++i) {
682      if (i)
683        fprintf(stderr, ", ");
684      fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename,
685              unsaved_files[i].Length);
686    }
687    fprintf(stderr, "],\n");
688    fprintf(stderr, "  'options' : %d,\n", TU_options);
689    fprintf(stderr, "}\n");
690
691    return 1;
692  } else if (getenv("LIBCLANG_RESOURCE_USAGE")) {
693    if (out_TU)
694      PrintLibclangResourceUsage(*out_TU);
695  }
696
697  return ITUI.result;
698}
699
700int clang_indexTranslationUnit(CXIndexAction idxAction,
701                               CXClientData client_data,
702                               IndexerCallbacks *index_callbacks,
703                               unsigned index_callbacks_size,
704                               unsigned index_options,
705                               CXTranslationUnit TU) {
706
707  IndexTranslationUnitInfo ITUI = { idxAction, client_data, index_callbacks,
708                                    index_callbacks_size, index_options, TU,
709                                    0 };
710
711  if (getenv("LIBCLANG_NOTHREADS")) {
712    clang_indexTranslationUnit_Impl(&ITUI);
713    return ITUI.result;
714  }
715
716  llvm::CrashRecoveryContext CRC;
717
718  if (!RunSafely(CRC, clang_indexTranslationUnit_Impl, &ITUI)) {
719    fprintf(stderr, "libclang: crash detected during indexing TU\n");
720
721    return 1;
722  }
723
724  return ITUI.result;
725}
726
727void clang_indexLoc_getFileLocation(CXIdxLoc location,
728                                    CXIdxClientFile *indexFile,
729                                    CXFile *file,
730                                    unsigned *line,
731                                    unsigned *column,
732                                    unsigned *offset) {
733  if (indexFile) *indexFile = 0;
734  if (file)   *file = 0;
735  if (line)   *line = 0;
736  if (column) *column = 0;
737  if (offset) *offset = 0;
738
739  SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data);
740  if (!location.ptr_data[0] || Loc.isInvalid())
741    return;
742
743  IndexingContext &IndexCtx =
744      *static_cast<IndexingContext*>(location.ptr_data[0]);
745  IndexCtx.translateLoc(Loc, indexFile, file, line, column, offset);
746}
747
748CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc location) {
749  SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data);
750  if (!location.ptr_data[0] || Loc.isInvalid())
751    return clang_getNullLocation();
752
753  IndexingContext &IndexCtx =
754      *static_cast<IndexingContext*>(location.ptr_data[0]);
755  return cxloc::translateSourceLocation(IndexCtx.getASTContext(), Loc);
756}
757
758} // end: extern "C"
759
760