IndexingContext.cpp revision 8d7a24e94b58676e57fd3f47353cbdbc59917d81 
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 "CXTranslationUnit.h"
12#include "CIndexDiagnostic.h"
13
14#include "clang/Frontend/ASTUnit.h"
15#include "clang/AST/DeclCXX.h"
16#include "clang/AST/DeclTemplate.h"
17
18using namespace clang;
19using namespace cxindex;
20using namespace cxcursor;
21
22IndexingContext::ObjCProtocolListInfo::ObjCProtocolListInfo(
23                                    const ObjCProtocolList &ProtList,
24                                    IndexingContext &IdxCtx,
25                                    ScratchAlloc &SA) {
26  ObjCInterfaceDecl::protocol_loc_iterator LI = ProtList.loc_begin();
27  for (ObjCInterfaceDecl::protocol_iterator
28         I = ProtList.begin(), E = ProtList.end(); I != E; ++I, ++LI) {
29    SourceLocation Loc = *LI;
30    ObjCProtocolDecl *PD = *I;
31    ProtEntities.push_back(EntityInfo());
32    IdxCtx.getEntityInfo(PD, ProtEntities.back(), SA);
33    CXIdxObjCProtocolRefInfo ProtInfo = { 0,
34                                MakeCursorObjCProtocolRef(PD, Loc, IdxCtx.CXTU),
35                                IdxCtx.getIndexLoc(Loc) };
36    ProtInfos.push_back(ProtInfo);
37
38    if (IdxCtx.shouldSuppressRefs())
39      IdxCtx.markEntityOccurrenceInFile(PD, Loc);
40  }
41
42  for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
43    ProtInfos[i].protocol = &ProtEntities[i];
44
45  for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
46    Prots.push_back(&ProtInfos[i]);
47}
48
49
50IBOutletCollectionInfo::IBOutletCollectionInfo(
51                                          const IBOutletCollectionInfo &other)
52  : AttrInfo(CXIdxAttr_IBOutletCollection, other.cursor, other.loc, other.A) {
53
54  IBCollInfo.attrInfo = this;
55  IBCollInfo.classCursor = other.IBCollInfo.classCursor;
56  IBCollInfo.classLoc = other.IBCollInfo.classLoc;
57  if (other.IBCollInfo.objcClass) {
58    ClassInfo = other.ClassInfo;
59    IBCollInfo.objcClass = &ClassInfo;
60  } else
61    IBCollInfo.objcClass = 0;
62}
63
64AttrListInfo::AttrListInfo(const Decl *D, IndexingContext &IdxCtx)
65  : SA(IdxCtx), ref_cnt(0) {
66
67  if (!D->hasAttrs())
68    return;
69
70  for (AttrVec::const_iterator AttrI = D->attr_begin(), AttrE = D->attr_end();
71         AttrI != AttrE; ++AttrI) {
72    const Attr *A = *AttrI;
73    CXCursor C = MakeCXCursor(A, const_cast<Decl *>(D), IdxCtx.CXTU);
74    CXIdxLoc Loc =  IdxCtx.getIndexLoc(A->getLocation());
75    switch (C.kind) {
76    default:
77      Attrs.push_back(AttrInfo(CXIdxAttr_Unexposed, C, Loc, A));
78      break;
79    case CXCursor_IBActionAttr:
80      Attrs.push_back(AttrInfo(CXIdxAttr_IBAction, C, Loc, A));
81      break;
82    case CXCursor_IBOutletAttr:
83      Attrs.push_back(AttrInfo(CXIdxAttr_IBOutlet, C, Loc, A));
84      break;
85    case CXCursor_IBOutletCollectionAttr:
86      IBCollAttrs.push_back(IBOutletCollectionInfo(C, Loc, A));
87      break;
88    }
89  }
90
91  for (unsigned i = 0, e = IBCollAttrs.size(); i != e; ++i) {
92    IBOutletCollectionInfo &IBInfo = IBCollAttrs[i];
93    CXAttrs.push_back(&IBInfo);
94
95    const IBOutletCollectionAttr *
96      IBAttr = cast<IBOutletCollectionAttr>(IBInfo.A);
97    IBInfo.IBCollInfo.attrInfo = &IBInfo;
98    IBInfo.IBCollInfo.classLoc = IdxCtx.getIndexLoc(IBAttr->getInterfaceLoc());
99    IBInfo.IBCollInfo.objcClass = 0;
100    IBInfo.IBCollInfo.classCursor = clang_getNullCursor();
101    QualType Ty = IBAttr->getInterface();
102    if (const ObjCInterfaceType *InterTy = Ty->getAs<ObjCInterfaceType>()) {
103      if (const ObjCInterfaceDecl *InterD = InterTy->getInterface()) {
104        IdxCtx.getEntityInfo(InterD, IBInfo.ClassInfo, SA);
105        IBInfo.IBCollInfo.objcClass = &IBInfo.ClassInfo;
106        IBInfo.IBCollInfo.classCursor = MakeCursorObjCClassRef(InterD,
107                                        IBAttr->getInterfaceLoc(), IdxCtx.CXTU);
108      }
109    }
110  }
111
112  for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
113    CXAttrs.push_back(&Attrs[i]);
114}
115
116IntrusiveRefCntPtr<AttrListInfo>
117AttrListInfo::create(const Decl *D, IndexingContext &IdxCtx) {
118  ScratchAlloc SA(IdxCtx);
119  AttrListInfo *attrs = SA.allocate<AttrListInfo>();
120  return new (attrs) AttrListInfo(D, IdxCtx);
121}
122
123IndexingContext::CXXBasesListInfo::CXXBasesListInfo(const CXXRecordDecl *D,
124                                   IndexingContext &IdxCtx,
125                                   ScratchAlloc &SA) {
126  for (CXXRecordDecl::base_class_const_iterator
127         I = D->bases_begin(), E = D->bases_end(); I != E; ++I) {
128    const CXXBaseSpecifier &Base = *I;
129    BaseEntities.push_back(EntityInfo());
130    const NamedDecl *BaseD = 0;
131    QualType T = Base.getType();
132    SourceLocation Loc = getBaseLoc(Base);
133
134    if (const TypedefType *TDT = T->getAs<TypedefType>()) {
135      BaseD = TDT->getDecl();
136    } else if (const TemplateSpecializationType *
137          TST = T->getAs<TemplateSpecializationType>()) {
138      BaseD = TST->getTemplateName().getAsTemplateDecl();
139    } else if (const RecordType *RT = T->getAs<RecordType>()) {
140      BaseD = RT->getDecl();
141    }
142
143    if (BaseD)
144      IdxCtx.getEntityInfo(BaseD, BaseEntities.back(), SA);
145    CXIdxBaseClassInfo BaseInfo = { 0,
146                         MakeCursorCXXBaseSpecifier(&Base, IdxCtx.CXTU),
147                         IdxCtx.getIndexLoc(Loc) };
148    BaseInfos.push_back(BaseInfo);
149  }
150
151  for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i) {
152    if (BaseEntities[i].name && BaseEntities[i].USR)
153      BaseInfos[i].base = &BaseEntities[i];
154  }
155
156  for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i)
157    CXBases.push_back(&BaseInfos[i]);
158}
159
160SourceLocation IndexingContext::CXXBasesListInfo::getBaseLoc(
161                                           const CXXBaseSpecifier &Base) const {
162  SourceLocation Loc = Base.getSourceRange().getBegin();
163  TypeLoc TL;
164  if (Base.getTypeSourceInfo())
165    TL = Base.getTypeSourceInfo()->getTypeLoc();
166  if (TL.isNull())
167    return Loc;
168
169  if (const QualifiedTypeLoc *QL = dyn_cast<QualifiedTypeLoc>(&TL))
170    TL = QL->getUnqualifiedLoc();
171
172  if (const ElaboratedTypeLoc *EL = dyn_cast<ElaboratedTypeLoc>(&TL))
173    return EL->getNamedTypeLoc().getBeginLoc();
174  if (const DependentNameTypeLoc *DL = dyn_cast<DependentNameTypeLoc>(&TL))
175    return DL->getNameLoc();
176  if (const DependentTemplateSpecializationTypeLoc *
177        DTL = dyn_cast<DependentTemplateSpecializationTypeLoc>(&TL))
178    return DTL->getTemplateNameLoc();
179
180  return Loc;
181}
182
183const char *ScratchAlloc::toCStr(StringRef Str) {
184  if (Str.empty())
185    return "";
186  if (Str.data()[Str.size()] == '\0')
187    return Str.data();
188  return copyCStr(Str);
189}
190
191const char *ScratchAlloc::copyCStr(StringRef Str) {
192  char *buf = IdxCtx.StrScratch.Allocate<char>(Str.size() + 1);
193  std::uninitialized_copy(Str.begin(), Str.end(), buf);
194  buf[Str.size()] = '\0';
195  return buf;
196}
197
198void IndexingContext::setASTContext(ASTContext &ctx) {
199  Ctx = &ctx;
200  static_cast<ASTUnit*>(CXTU->TUData)->setASTContext(&ctx);
201}
202
203void IndexingContext::setPreprocessor(Preprocessor &PP) {
204  static_cast<ASTUnit*>(CXTU->TUData)->setPreprocessor(&PP);
205}
206
207bool IndexingContext::isFunctionLocalDecl(const Decl *D) {
208  assert(D);
209
210  if (!D->getParentFunctionOrMethod())
211    return false;
212
213  if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
214    switch (ND->getLinkage()) {
215    case NoLinkage:
216    case InternalLinkage:
217      return true;
218    case UniqueExternalLinkage:
219    case ExternalLinkage:
220      return false;
221    }
222  }
223
224  return true;
225}
226
227bool IndexingContext::shouldAbort() {
228  if (!CB.abortQuery)
229    return false;
230  return CB.abortQuery(ClientData, 0);
231}
232
233void IndexingContext::enteredMainFile(const FileEntry *File) {
234  if (File && CB.enteredMainFile) {
235    CXIdxClientFile idxFile = CB.enteredMainFile(ClientData, (CXFile)File, 0);
236    FileMap[File] = idxFile;
237  }
238}
239
240void IndexingContext::ppIncludedFile(SourceLocation hashLoc,
241                                     StringRef filename,
242                                     const FileEntry *File,
243                                     bool isImport, bool isAngled,
244                                     bool isModuleImport) {
245  if (!CB.ppIncludedFile)
246    return;
247
248  ScratchAlloc SA(*this);
249  CXIdxIncludedFileInfo Info = { getIndexLoc(hashLoc),
250                                 SA.toCStr(filename),
251                                 (CXFile)File,
252                                 isImport, isAngled, isModuleImport };
253  CXIdxClientFile idxFile = CB.ppIncludedFile(ClientData, &Info);
254  FileMap[File] = idxFile;
255}
256
257void IndexingContext::importedModule(const ImportDecl *ImportD) {
258  if (!CB.importedASTFile)
259    return;
260
261  Module *Mod = ImportD->getImportedModule();
262  if (!Mod)
263    return;
264  std::string ModuleName = Mod->getFullModuleName();
265
266  CXIdxImportedASTFileInfo Info = {
267                                    (CXFile)Mod->getASTFile(),
268                                    Mod,
269                                    getIndexLoc(ImportD->getLocation()),
270                                    ImportD->isImplicit()
271                                  };
272  CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
273  (void)astFile;
274}
275
276void IndexingContext::importedPCH(const FileEntry *File) {
277  if (!CB.importedASTFile)
278    return;
279
280  CXIdxImportedASTFileInfo Info = {
281                                    (CXFile)File,
282                                    /*module=*/NULL,
283                                    getIndexLoc(SourceLocation()),
284                                    /*isImplicit=*/false
285                                  };
286  CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
287  (void)astFile;
288}
289
290void IndexingContext::startedTranslationUnit() {
291  CXIdxClientContainer idxCont = 0;
292  if (CB.startedTranslationUnit)
293    idxCont = CB.startedTranslationUnit(ClientData, 0);
294  addContainerInMap(Ctx->getTranslationUnitDecl(), idxCont);
295}
296
297void IndexingContext::handleDiagnosticSet(CXDiagnostic CXDiagSet) {
298  if (!CB.diagnostic)
299    return;
300
301  CB.diagnostic(ClientData, CXDiagSet, 0);
302}
303
304bool IndexingContext::handleDecl(const NamedDecl *D,
305                                 SourceLocation Loc, CXCursor Cursor,
306                                 DeclInfo &DInfo,
307                                 const DeclContext *LexicalDC) {
308  if (!CB.indexDeclaration || !D)
309    return false;
310  if (D->isImplicit() && shouldIgnoreIfImplicit(D))
311    return false;
312
313  ScratchAlloc SA(*this);
314  getEntityInfo(D, DInfo.EntInfo, SA);
315  if ((!shouldIndexFunctionLocalSymbols() && !DInfo.EntInfo.USR)
316      || Loc.isInvalid())
317    return false;
318
319  if (!LexicalDC)
320    LexicalDC = D->getLexicalDeclContext();
321
322  if (shouldSuppressRefs())
323    markEntityOccurrenceInFile(D, Loc);
324
325  DInfo.entityInfo = &DInfo.EntInfo;
326  DInfo.cursor = Cursor;
327  DInfo.loc = getIndexLoc(Loc);
328  DInfo.isImplicit = D->isImplicit();
329
330  DInfo.attributes = DInfo.EntInfo.attributes;
331  DInfo.numAttributes = DInfo.EntInfo.numAttributes;
332
333  getContainerInfo(D->getDeclContext(), DInfo.SemanticContainer);
334  DInfo.semanticContainer = &DInfo.SemanticContainer;
335
336  if (LexicalDC == D->getDeclContext()) {
337    DInfo.lexicalContainer = &DInfo.SemanticContainer;
338  } else if (isTemplateImplicitInstantiation(D)) {
339    // Implicit instantiations have the lexical context of where they were
340    // instantiated first. We choose instead the semantic context because:
341    // 1) at the time that we see the instantiation we have not seen the
342    //   function where it occurred yet.
343    // 2) the lexical context of the first instantiation is not useful
344    //   information anyway.
345    DInfo.lexicalContainer = &DInfo.SemanticContainer;
346  } else {
347    getContainerInfo(LexicalDC, DInfo.LexicalContainer);
348    DInfo.lexicalContainer = &DInfo.LexicalContainer;
349  }
350
351  if (DInfo.isContainer) {
352    getContainerInfo(getEntityContainer(D), DInfo.DeclAsContainer);
353    DInfo.declAsContainer = &DInfo.DeclAsContainer;
354  }
355
356  CB.indexDeclaration(ClientData, &DInfo);
357  return true;
358}
359
360bool IndexingContext::handleObjCContainer(const ObjCContainerDecl *D,
361                                          SourceLocation Loc, CXCursor Cursor,
362                                          ObjCContainerDeclInfo &ContDInfo) {
363  ContDInfo.ObjCContDeclInfo.declInfo = &ContDInfo;
364  return handleDecl(D, Loc, Cursor, ContDInfo);
365}
366
367bool IndexingContext::handleFunction(const FunctionDecl *D) {
368  DeclInfo DInfo(!D->isFirstDeclaration(), D->isThisDeclarationADefinition(),
369                 D->isThisDeclarationADefinition());
370  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
371}
372
373bool IndexingContext::handleVar(const VarDecl *D) {
374  DeclInfo DInfo(!D->isFirstDeclaration(), D->isThisDeclarationADefinition(),
375                 /*isContainer=*/false);
376  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
377}
378
379bool IndexingContext::handleField(const FieldDecl *D) {
380  DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
381                 /*isContainer=*/false);
382  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
383}
384
385bool IndexingContext::handleEnumerator(const EnumConstantDecl *D) {
386  DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
387                 /*isContainer=*/false);
388  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
389}
390
391bool IndexingContext::handleTagDecl(const TagDecl *D) {
392  if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(D))
393    return handleCXXRecordDecl(CXXRD, D);
394
395  DeclInfo DInfo(!D->isFirstDeclaration(), D->isThisDeclarationADefinition(),
396                 D->isThisDeclarationADefinition());
397  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
398}
399
400bool IndexingContext::handleTypedefName(const TypedefNameDecl *D) {
401  DeclInfo DInfo(!D->isFirstDeclaration(), /*isDefinition=*/true,
402                 /*isContainer=*/false);
403  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
404}
405
406bool IndexingContext::handleObjCInterface(const ObjCInterfaceDecl *D) {
407  // For @class forward declarations, suppress them the same way as references.
408  if (!D->isThisDeclarationADefinition()) {
409    if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
410      return false; // already occurred.
411
412    // FIXME: This seems like the wrong definition for redeclaration.
413    bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
414    ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true, isRedeclaration,
415                                    /*isImplementation=*/false);
416    return handleObjCContainer(D, D->getLocation(),
417                               MakeCursorObjCClassRef(D, D->getLocation(),
418                                                      CXTU),
419                               ContDInfo);
420  }
421
422  ScratchAlloc SA(*this);
423
424  CXIdxBaseClassInfo BaseClass;
425  EntityInfo BaseEntity;
426  BaseClass.cursor = clang_getNullCursor();
427  if (ObjCInterfaceDecl *SuperD = D->getSuperClass()) {
428    getEntityInfo(SuperD, BaseEntity, SA);
429    SourceLocation SuperLoc = D->getSuperClassLoc();
430    BaseClass.base = &BaseEntity;
431    BaseClass.cursor = MakeCursorObjCSuperClassRef(SuperD, SuperLoc, CXTU);
432    BaseClass.loc = getIndexLoc(SuperLoc);
433
434    if (shouldSuppressRefs())
435      markEntityOccurrenceInFile(SuperD, SuperLoc);
436  }
437
438  ObjCProtocolList EmptyProtoList;
439  ObjCProtocolListInfo ProtInfo(D->isThisDeclarationADefinition()
440                                  ? D->getReferencedProtocols()
441                                  : EmptyProtoList,
442                                *this, SA);
443
444  ObjCInterfaceDeclInfo InterInfo(D);
445  InterInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
446  InterInfo.ObjCInterDeclInfo.containerInfo = &InterInfo.ObjCContDeclInfo;
447  InterInfo.ObjCInterDeclInfo.superInfo = D->getSuperClass() ? &BaseClass : 0;
448  InterInfo.ObjCInterDeclInfo.protocols = &InterInfo.ObjCProtoListInfo;
449
450  return handleObjCContainer(D, D->getLocation(), getCursor(D), InterInfo);
451}
452
453bool IndexingContext::handleObjCImplementation(
454                                              const ObjCImplementationDecl *D) {
455  ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/false,
456                      /*isRedeclaration=*/true,
457                      /*isImplementation=*/true);
458  return handleObjCContainer(D, D->getLocation(), getCursor(D), ContDInfo);
459}
460
461bool IndexingContext::handleObjCProtocol(const ObjCProtocolDecl *D) {
462  if (!D->isThisDeclarationADefinition()) {
463    if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
464      return false; // already occurred.
465
466    // FIXME: This seems like the wrong definition for redeclaration.
467    bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
468    ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true,
469                                    isRedeclaration,
470                                    /*isImplementation=*/false);
471    return handleObjCContainer(D, D->getLocation(),
472                               MakeCursorObjCProtocolRef(D, D->getLocation(),
473                                                         CXTU),
474                               ContDInfo);
475  }
476
477  ScratchAlloc SA(*this);
478  ObjCProtocolList EmptyProtoList;
479  ObjCProtocolListInfo ProtListInfo(D->isThisDeclarationADefinition()
480                                      ? D->getReferencedProtocols()
481                                      : EmptyProtoList,
482                                    *this, SA);
483
484  ObjCProtocolDeclInfo ProtInfo(D);
485  ProtInfo.ObjCProtoRefListInfo = ProtListInfo.getListInfo();
486
487  return handleObjCContainer(D, D->getLocation(), getCursor(D), ProtInfo);
488}
489
490bool IndexingContext::handleObjCCategory(const ObjCCategoryDecl *D) {
491  ScratchAlloc SA(*this);
492
493  ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/false);
494  EntityInfo ClassEntity;
495  const ObjCInterfaceDecl *IFaceD = D->getClassInterface();
496  SourceLocation ClassLoc = D->getLocation();
497  SourceLocation CategoryLoc = D->IsClassExtension() ? ClassLoc
498                                                     : D->getCategoryNameLoc();
499  getEntityInfo(IFaceD, ClassEntity, SA);
500
501  if (shouldSuppressRefs())
502    markEntityOccurrenceInFile(IFaceD, ClassLoc);
503
504  ObjCProtocolListInfo ProtInfo(D->getReferencedProtocols(), *this, SA);
505
506  CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
507  if (IFaceD) {
508    CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
509    CatDInfo.ObjCCatDeclInfo.classCursor =
510        MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
511  } else {
512    CatDInfo.ObjCCatDeclInfo.objcClass = 0;
513    CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
514  }
515  CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
516  CatDInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
517  CatDInfo.ObjCCatDeclInfo.protocols = &CatDInfo.ObjCProtoListInfo;
518
519  return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
520}
521
522bool IndexingContext::handleObjCCategoryImpl(const ObjCCategoryImplDecl *D) {
523  ScratchAlloc SA(*this);
524
525  const ObjCCategoryDecl *CatD = D->getCategoryDecl();
526  ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/true);
527  EntityInfo ClassEntity;
528  const ObjCInterfaceDecl *IFaceD = CatD->getClassInterface();
529  SourceLocation ClassLoc = D->getLocation();
530  SourceLocation CategoryLoc = D->getCategoryNameLoc();
531  getEntityInfo(IFaceD, ClassEntity, SA);
532
533  if (shouldSuppressRefs())
534    markEntityOccurrenceInFile(IFaceD, ClassLoc);
535
536  CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
537  if (IFaceD) {
538    CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
539    CatDInfo.ObjCCatDeclInfo.classCursor =
540        MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
541  } else {
542    CatDInfo.ObjCCatDeclInfo.objcClass = 0;
543    CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
544  }
545  CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
546  CatDInfo.ObjCCatDeclInfo.protocols = 0;
547
548  return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
549}
550
551bool IndexingContext::handleObjCMethod(const ObjCMethodDecl *D) {
552  DeclInfo DInfo(!D->isCanonicalDecl(), D->isThisDeclarationADefinition(),
553                 D->isThisDeclarationADefinition());
554  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
555}
556
557bool IndexingContext::handleSynthesizedObjCProperty(
558                                                const ObjCPropertyImplDecl *D) {
559  ObjCPropertyDecl *PD = D->getPropertyDecl();
560  return handleReference(PD, D->getLocation(), getCursor(D), 0, D->getDeclContext());
561}
562
563bool IndexingContext::handleSynthesizedObjCMethod(const ObjCMethodDecl *D,
564                                                  SourceLocation Loc,
565                                                 const DeclContext *LexicalDC) {
566  DeclInfo DInfo(/*isRedeclaration=*/true, /*isDefinition=*/true,
567                 /*isContainer=*/false);
568  return handleDecl(D, Loc, getCursor(D), DInfo, LexicalDC);
569}
570
571bool IndexingContext::handleObjCProperty(const ObjCPropertyDecl *D) {
572  ScratchAlloc SA(*this);
573
574  ObjCPropertyDeclInfo DInfo;
575  EntityInfo GetterEntity;
576  EntityInfo SetterEntity;
577
578  DInfo.ObjCPropDeclInfo.declInfo = &DInfo;
579
580  if (ObjCMethodDecl *Getter = D->getGetterMethodDecl()) {
581    getEntityInfo(Getter, GetterEntity, SA);
582    DInfo.ObjCPropDeclInfo.getter = &GetterEntity;
583  } else {
584    DInfo.ObjCPropDeclInfo.getter = 0;
585  }
586  if (ObjCMethodDecl *Setter = D->getSetterMethodDecl()) {
587    getEntityInfo(Setter, SetterEntity, SA);
588    DInfo.ObjCPropDeclInfo.setter = &SetterEntity;
589  } else {
590    DInfo.ObjCPropDeclInfo.setter = 0;
591  }
592
593  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
594}
595
596bool IndexingContext::handleNamespace(const NamespaceDecl *D) {
597  DeclInfo DInfo(/*isRedeclaration=*/!D->isOriginalNamespace(),
598                 /*isDefinition=*/true,
599                 /*isContainer=*/true);
600  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
601}
602
603bool IndexingContext::handleClassTemplate(const ClassTemplateDecl *D) {
604  return handleCXXRecordDecl(D->getTemplatedDecl(), D);
605}
606
607bool IndexingContext::handleFunctionTemplate(const FunctionTemplateDecl *D) {
608  DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
609                 /*isDefinition=*/D->isThisDeclarationADefinition(),
610                 /*isContainer=*/D->isThisDeclarationADefinition());
611  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
612}
613
614bool IndexingContext::handleTypeAliasTemplate(const TypeAliasTemplateDecl *D) {
615  DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
616                 /*isDefinition=*/true, /*isContainer=*/false);
617  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
618}
619
620bool IndexingContext::handleReference(const NamedDecl *D, SourceLocation Loc,
621                                      const NamedDecl *Parent,
622                                      const DeclContext *DC,
623                                      const Expr *E,
624                                      CXIdxEntityRefKind Kind) {
625  if (!D)
626    return false;
627
628  CXCursor Cursor = E ? MakeCXCursor(const_cast<Expr*>(E),
629                                     const_cast<Decl*>(cast<Decl>(DC)), CXTU)
630                      : getRefCursor(D, Loc);
631  return handleReference(D, Loc, Cursor, Parent, DC, E, Kind);
632}
633
634bool IndexingContext::handleReference(const NamedDecl *D, SourceLocation Loc,
635                                      CXCursor Cursor,
636                                      const NamedDecl *Parent,
637                                      const DeclContext *DC,
638                                      const Expr *E,
639                                      CXIdxEntityRefKind Kind) {
640  if (!CB.indexEntityReference)
641    return false;
642
643  if (!D)
644    return false;
645  if (Loc.isInvalid())
646    return false;
647  if (!shouldIndexFunctionLocalSymbols() && isFunctionLocalDecl(D))
648    return false;
649  if (isNotFromSourceFile(D->getLocation()))
650    return false;
651  if (D->isImplicit() && shouldIgnoreIfImplicit(D))
652    return false;
653
654  if (shouldSuppressRefs()) {
655    if (markEntityOccurrenceInFile(D, Loc))
656      return false; // already occurred.
657  }
658
659  ScratchAlloc SA(*this);
660  EntityInfo RefEntity, ParentEntity;
661  getEntityInfo(D, RefEntity, SA);
662  if (!RefEntity.USR)
663    return false;
664
665  getEntityInfo(Parent, ParentEntity, SA);
666
667  ContainerInfo Container;
668  getContainerInfo(DC, Container);
669
670  CXIdxEntityRefInfo Info = { Kind,
671                              Cursor,
672                              getIndexLoc(Loc),
673                              &RefEntity,
674                              Parent ? &ParentEntity : 0,
675                              &Container };
676  CB.indexEntityReference(ClientData, &Info);
677  return true;
678}
679
680bool IndexingContext::isNotFromSourceFile(SourceLocation Loc) const {
681  if (Loc.isInvalid())
682    return true;
683  SourceManager &SM = Ctx->getSourceManager();
684  SourceLocation FileLoc = SM.getFileLoc(Loc);
685  FileID FID = SM.getFileID(FileLoc);
686  return SM.getFileEntryForID(FID) == 0;
687}
688
689void IndexingContext::addContainerInMap(const DeclContext *DC,
690                                        CXIdxClientContainer container) {
691  if (!DC)
692    return;
693
694  ContainerMapTy::iterator I = ContainerMap.find(DC);
695  if (I == ContainerMap.end()) {
696    if (container)
697      ContainerMap[DC] = container;
698    return;
699  }
700  // Allow changing the container of a previously seen DeclContext so we
701  // can handle invalid user code, like a function re-definition.
702  if (container)
703    I->second = container;
704  else
705    ContainerMap.erase(I);
706}
707
708CXIdxClientEntity IndexingContext::getClientEntity(const Decl *D) const {
709  if (!D)
710    return 0;
711  EntityMapTy::const_iterator I = EntityMap.find(D);
712  if (I == EntityMap.end())
713    return 0;
714  return I->second;
715}
716
717void IndexingContext::setClientEntity(const Decl *D, CXIdxClientEntity client) {
718  if (!D)
719    return;
720  EntityMap[D] = client;
721}
722
723bool IndexingContext::handleCXXRecordDecl(const CXXRecordDecl *RD,
724                                          const NamedDecl *OrigD) {
725  if (RD->isThisDeclarationADefinition()) {
726    ScratchAlloc SA(*this);
727    CXXClassDeclInfo CXXDInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
728                           /*isDefinition=*/RD->isThisDeclarationADefinition());
729    CXXBasesListInfo BaseList(RD, *this, SA);
730    CXXDInfo.CXXClassInfo.declInfo = &CXXDInfo;
731    CXXDInfo.CXXClassInfo.bases = BaseList.getBases();
732    CXXDInfo.CXXClassInfo.numBases = BaseList.getNumBases();
733
734    if (shouldSuppressRefs()) {
735      // Go through bases and mark them as referenced.
736      for (unsigned i = 0, e = BaseList.getNumBases(); i != e; ++i) {
737        const CXIdxBaseClassInfo *baseInfo = BaseList.getBases()[i];
738        if (baseInfo->base) {
739          const NamedDecl *BaseD = BaseList.BaseEntities[i].Dcl;
740          SourceLocation
741            Loc = SourceLocation::getFromRawEncoding(baseInfo->loc.int_data);
742          markEntityOccurrenceInFile(BaseD, Loc);
743        }
744      }
745    }
746
747    return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), CXXDInfo);
748  }
749
750  DeclInfo DInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
751                 /*isDefinition=*/RD->isThisDeclarationADefinition(),
752                 /*isContainer=*/RD->isThisDeclarationADefinition());
753  return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), DInfo);
754}
755
756bool IndexingContext::markEntityOccurrenceInFile(const NamedDecl *D,
757                                                 SourceLocation Loc) {
758  if (!D || Loc.isInvalid())
759    return true;
760
761  SourceManager &SM = Ctx->getSourceManager();
762  D = getEntityDecl(D);
763
764  std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(SM.getFileLoc(Loc));
765  FileID FID = LocInfo.first;
766  if (FID.isInvalid())
767    return true;
768
769  const FileEntry *FE = SM.getFileEntryForID(FID);
770  if (!FE)
771    return true;
772  RefFileOccurence RefOccur(FE, D);
773  std::pair<llvm::DenseSet<RefFileOccurence>::iterator, bool>
774  res = RefFileOccurences.insert(RefOccur);
775  if (!res.second)
776    return true; // already in map.
777
778  return false;
779}
780
781const NamedDecl *IndexingContext::getEntityDecl(const NamedDecl *D) const {
782  assert(D);
783  D = cast<NamedDecl>(D->getCanonicalDecl());
784
785  if (const ObjCImplementationDecl *
786               ImplD = dyn_cast<ObjCImplementationDecl>(D)) {
787    return getEntityDecl(ImplD->getClassInterface());
788
789  } else if (const ObjCCategoryImplDecl *
790               CatImplD = dyn_cast<ObjCCategoryImplDecl>(D)) {
791    return getEntityDecl(CatImplD->getCategoryDecl());
792  } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
793    if (FunctionTemplateDecl *TemplD = FD->getDescribedFunctionTemplate())
794      return getEntityDecl(TemplD);
795  } else if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) {
796    if (ClassTemplateDecl *TemplD = RD->getDescribedClassTemplate())
797      return getEntityDecl(TemplD);
798  }
799
800  return D;
801}
802
803const DeclContext *
804IndexingContext::getEntityContainer(const Decl *D) const {
805  const DeclContext *DC = dyn_cast<DeclContext>(D);
806  if (DC)
807    return DC;
808
809  if (const ClassTemplateDecl *ClassTempl = dyn_cast<ClassTemplateDecl>(D)) {
810    DC = ClassTempl->getTemplatedDecl();
811  } if (const FunctionTemplateDecl *
812          FuncTempl = dyn_cast<FunctionTemplateDecl>(D)) {
813    DC = FuncTempl->getTemplatedDecl();
814  }
815
816  return DC;
817}
818
819CXIdxClientContainer
820IndexingContext::getClientContainerForDC(const DeclContext *DC) const {
821  if (!DC)
822    return 0;
823
824  ContainerMapTy::const_iterator I = ContainerMap.find(DC);
825  if (I == ContainerMap.end())
826    return 0;
827
828  return I->second;
829}
830
831CXIdxClientFile IndexingContext::getIndexFile(const FileEntry *File) {
832  if (!File)
833    return 0;
834
835  FileMapTy::iterator FI = FileMap.find(File);
836  if (FI != FileMap.end())
837    return FI->second;
838
839  return 0;
840}
841
842CXIdxLoc IndexingContext::getIndexLoc(SourceLocation Loc) const {
843  CXIdxLoc idxLoc =  { {0, 0}, 0 };
844  if (Loc.isInvalid())
845    return idxLoc;
846
847  idxLoc.ptr_data[0] = (void*)this;
848  idxLoc.int_data = Loc.getRawEncoding();
849  return idxLoc;
850}
851
852void IndexingContext::translateLoc(SourceLocation Loc,
853                                   CXIdxClientFile *indexFile, CXFile *file,
854                                   unsigned *line, unsigned *column,
855                                   unsigned *offset) {
856  if (Loc.isInvalid())
857    return;
858
859  SourceManager &SM = Ctx->getSourceManager();
860  Loc = SM.getFileLoc(Loc);
861
862  std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(Loc);
863  FileID FID = LocInfo.first;
864  unsigned FileOffset = LocInfo.second;
865
866  if (FID.isInvalid())
867    return;
868
869  const FileEntry *FE = SM.getFileEntryForID(FID);
870  if (indexFile)
871    *indexFile = getIndexFile(FE);
872  if (file)
873    *file = (void *)FE;
874  if (line)
875    *line = SM.getLineNumber(FID, FileOffset);
876  if (column)
877    *column = SM.getColumnNumber(FID, FileOffset);
878  if (offset)
879    *offset = FileOffset;
880}
881
882void IndexingContext::getEntityInfo(const NamedDecl *D,
883                                    EntityInfo &EntityInfo,
884                                    ScratchAlloc &SA) {
885  if (!D)
886    return;
887
888  D = getEntityDecl(D);
889  EntityInfo.cursor = getCursor(D);
890  EntityInfo.Dcl = D;
891  EntityInfo.IndexCtx = this;
892  EntityInfo.kind = CXIdxEntity_Unexposed;
893  EntityInfo.templateKind = CXIdxEntity_NonTemplate;
894  EntityInfo.lang = CXIdxEntityLang_C;
895
896  if (D->hasAttrs()) {
897    EntityInfo.AttrList = AttrListInfo::create(D, *this);
898    EntityInfo.attributes = EntityInfo.AttrList->getAttrs();
899    EntityInfo.numAttributes = EntityInfo.AttrList->getNumAttrs();
900  }
901
902  if (const TagDecl *TD = dyn_cast<TagDecl>(D)) {
903    switch (TD->getTagKind()) {
904    case TTK_Struct:
905      EntityInfo.kind = CXIdxEntity_Struct; break;
906    case TTK_Union:
907      EntityInfo.kind = CXIdxEntity_Union; break;
908    case TTK_Class:
909      EntityInfo.kind = CXIdxEntity_CXXClass;
910      EntityInfo.lang = CXIdxEntityLang_CXX;
911      break;
912    case TTK_Interface:
913      EntityInfo.kind = CXIdxEntity_CXXInterface;
914      EntityInfo.lang = CXIdxEntityLang_CXX;
915      break;
916    case TTK_Enum:
917      EntityInfo.kind = CXIdxEntity_Enum; break;
918    }
919
920    if (const CXXRecordDecl *CXXRec = dyn_cast<CXXRecordDecl>(D))
921      if (!CXXRec->isCLike())
922        EntityInfo.lang = CXIdxEntityLang_CXX;
923
924    if (isa<ClassTemplatePartialSpecializationDecl>(D)) {
925      EntityInfo.templateKind = CXIdxEntity_TemplatePartialSpecialization;
926    } else if (isa<ClassTemplateSpecializationDecl>(D)) {
927      EntityInfo.templateKind = CXIdxEntity_TemplateSpecialization;
928    }
929
930  } else {
931    switch (D->getKind()) {
932    case Decl::Typedef:
933      EntityInfo.kind = CXIdxEntity_Typedef; break;
934    case Decl::Function:
935      EntityInfo.kind = CXIdxEntity_Function;
936      break;
937    case Decl::ParmVar:
938      EntityInfo.kind = CXIdxEntity_Variable;
939      break;
940    case Decl::Var:
941      EntityInfo.kind = CXIdxEntity_Variable;
942      if (isa<CXXRecordDecl>(D->getDeclContext())) {
943        EntityInfo.kind = CXIdxEntity_CXXStaticVariable;
944        EntityInfo.lang = CXIdxEntityLang_CXX;
945      }
946      break;
947    case Decl::Field:
948      EntityInfo.kind = CXIdxEntity_Field;
949      if (const CXXRecordDecl *
950            CXXRec = dyn_cast<CXXRecordDecl>(D->getDeclContext())) {
951        // FIXME: isPOD check is not sufficient, a POD can contain methods,
952        // we want a isCStructLike check.
953        if (!CXXRec->isPOD())
954          EntityInfo.lang = CXIdxEntityLang_CXX;
955      }
956      break;
957    case Decl::EnumConstant:
958      EntityInfo.kind = CXIdxEntity_EnumConstant; break;
959    case Decl::ObjCInterface:
960      EntityInfo.kind = CXIdxEntity_ObjCClass;
961      EntityInfo.lang = CXIdxEntityLang_ObjC;
962      break;
963    case Decl::ObjCProtocol:
964      EntityInfo.kind = CXIdxEntity_ObjCProtocol;
965      EntityInfo.lang = CXIdxEntityLang_ObjC;
966      break;
967    case Decl::ObjCCategory:
968      EntityInfo.kind = CXIdxEntity_ObjCCategory;
969      EntityInfo.lang = CXIdxEntityLang_ObjC;
970      break;
971    case Decl::ObjCMethod:
972      if (cast<ObjCMethodDecl>(D)->isInstanceMethod())
973        EntityInfo.kind = CXIdxEntity_ObjCInstanceMethod;
974      else
975        EntityInfo.kind = CXIdxEntity_ObjCClassMethod;
976      EntityInfo.lang = CXIdxEntityLang_ObjC;
977      break;
978    case Decl::ObjCProperty:
979      EntityInfo.kind = CXIdxEntity_ObjCProperty;
980      EntityInfo.lang = CXIdxEntityLang_ObjC;
981      break;
982    case Decl::ObjCIvar:
983      EntityInfo.kind = CXIdxEntity_ObjCIvar;
984      EntityInfo.lang = CXIdxEntityLang_ObjC;
985      break;
986    case Decl::Namespace:
987      EntityInfo.kind = CXIdxEntity_CXXNamespace;
988      EntityInfo.lang = CXIdxEntityLang_CXX;
989      break;
990    case Decl::NamespaceAlias:
991      EntityInfo.kind = CXIdxEntity_CXXNamespaceAlias;
992      EntityInfo.lang = CXIdxEntityLang_CXX;
993      break;
994    case Decl::CXXConstructor:
995      EntityInfo.kind = CXIdxEntity_CXXConstructor;
996      EntityInfo.lang = CXIdxEntityLang_CXX;
997      break;
998    case Decl::CXXDestructor:
999      EntityInfo.kind = CXIdxEntity_CXXDestructor;
1000      EntityInfo.lang = CXIdxEntityLang_CXX;
1001      break;
1002    case Decl::CXXConversion:
1003      EntityInfo.kind = CXIdxEntity_CXXConversionFunction;
1004      EntityInfo.lang = CXIdxEntityLang_CXX;
1005      break;
1006    case Decl::CXXMethod: {
1007      const CXXMethodDecl *MD = cast<CXXMethodDecl>(D);
1008      if (MD->isStatic())
1009        EntityInfo.kind = CXIdxEntity_CXXStaticMethod;
1010      else
1011        EntityInfo.kind = CXIdxEntity_CXXInstanceMethod;
1012      EntityInfo.lang = CXIdxEntityLang_CXX;
1013      break;
1014    }
1015    case Decl::ClassTemplate:
1016      EntityInfo.kind = CXIdxEntity_CXXClass;
1017      EntityInfo.templateKind = CXIdxEntity_Template;
1018      break;
1019    case Decl::FunctionTemplate:
1020      EntityInfo.kind = CXIdxEntity_Function;
1021      EntityInfo.templateKind = CXIdxEntity_Template;
1022      if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(
1023                           cast<FunctionTemplateDecl>(D)->getTemplatedDecl())) {
1024        if (isa<CXXConstructorDecl>(MD))
1025          EntityInfo.kind = CXIdxEntity_CXXConstructor;
1026        else if (isa<CXXDestructorDecl>(MD))
1027          EntityInfo.kind = CXIdxEntity_CXXDestructor;
1028        else if (isa<CXXConversionDecl>(MD))
1029          EntityInfo.kind = CXIdxEntity_CXXConversionFunction;
1030        else {
1031          if (MD->isStatic())
1032            EntityInfo.kind = CXIdxEntity_CXXStaticMethod;
1033          else
1034            EntityInfo.kind = CXIdxEntity_CXXInstanceMethod;
1035        }
1036      }
1037      break;
1038    case Decl::TypeAliasTemplate:
1039      EntityInfo.kind = CXIdxEntity_CXXTypeAlias;
1040      EntityInfo.templateKind = CXIdxEntity_Template;
1041      break;
1042    case Decl::TypeAlias:
1043      EntityInfo.kind = CXIdxEntity_CXXTypeAlias;
1044      EntityInfo.lang = CXIdxEntityLang_CXX;
1045      break;
1046    default:
1047      break;
1048    }
1049  }
1050
1051  if (EntityInfo.kind == CXIdxEntity_Unexposed)
1052    return;
1053
1054  if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
1055    if (FD->getTemplatedKind() ==
1056          FunctionDecl::TK_FunctionTemplateSpecialization)
1057      EntityInfo.templateKind = CXIdxEntity_TemplateSpecialization;
1058  }
1059
1060  if (EntityInfo.templateKind != CXIdxEntity_NonTemplate)
1061    EntityInfo.lang = CXIdxEntityLang_CXX;
1062
1063  if (IdentifierInfo *II = D->getIdentifier()) {
1064    EntityInfo.name = SA.toCStr(II->getName());
1065
1066  } else if (isa<TagDecl>(D) || isa<FieldDecl>(D) || isa<NamespaceDecl>(D)) {
1067    EntityInfo.name = 0; // anonymous tag/field/namespace.
1068
1069  } else {
1070    SmallString<256> StrBuf;
1071    {
1072      llvm::raw_svector_ostream OS(StrBuf);
1073      D->printName(OS);
1074    }
1075    EntityInfo.name = SA.copyCStr(StrBuf.str());
1076  }
1077
1078  {
1079    SmallString<512> StrBuf;
1080    bool Ignore = getDeclCursorUSR(D, StrBuf);
1081    if (Ignore) {
1082      EntityInfo.USR = 0;
1083    } else {
1084      EntityInfo.USR = SA.copyCStr(StrBuf.str());
1085    }
1086  }
1087}
1088
1089void IndexingContext::getContainerInfo(const DeclContext *DC,
1090                                       ContainerInfo &ContInfo) {
1091  ContInfo.cursor = getCursor(cast<Decl>(DC));
1092  ContInfo.DC = DC;
1093  ContInfo.IndexCtx = this;
1094}
1095
1096CXCursor IndexingContext::getRefCursor(const NamedDecl *D, SourceLocation Loc) {
1097  if (const TypeDecl *TD = dyn_cast<TypeDecl>(D))
1098    return MakeCursorTypeRef(TD, Loc, CXTU);
1099  if (const ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D))
1100    return MakeCursorObjCClassRef(ID, Loc, CXTU);
1101  if (const ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D))
1102    return MakeCursorObjCProtocolRef(PD, Loc, CXTU);
1103  if (const TemplateDecl *Template = dyn_cast<TemplateDecl>(D))
1104    return MakeCursorTemplateRef(Template, Loc, CXTU);
1105  if (const NamespaceDecl *Namespace = dyn_cast<NamespaceDecl>(D))
1106    return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
1107  if (const NamespaceAliasDecl *Namespace = dyn_cast<NamespaceAliasDecl>(D))
1108    return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
1109  if (const FieldDecl *Field = dyn_cast<FieldDecl>(D))
1110    return MakeCursorMemberRef(Field, Loc, CXTU);
1111  if (const VarDecl *Var = dyn_cast<VarDecl>(D))
1112    return MakeCursorVariableRef(Var, Loc, CXTU);
1113
1114  return clang_getNullCursor();
1115}
1116
1117bool IndexingContext::shouldIgnoreIfImplicit(const Decl *D) {
1118  if (isa<ObjCInterfaceDecl>(D))
1119    return false;
1120  if (isa<ObjCCategoryDecl>(D))
1121    return false;
1122  if (isa<ObjCIvarDecl>(D))
1123    return false;
1124  if (isa<ObjCMethodDecl>(D))
1125    return false;
1126  if (isa<ImportDecl>(D))
1127    return false;
1128  return true;
1129}
1130
1131bool IndexingContext::isTemplateImplicitInstantiation(const Decl *D) {
1132  if (const ClassTemplateSpecializationDecl *
1133        SD = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
1134    return SD->getSpecializationKind() == TSK_ImplicitInstantiation;
1135  }
1136  if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
1137    return FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation;
1138  }
1139  return false;
1140}
1141