1//===- CXIndexDataConsumer.cpp - Index data consumer for libclang----------===//
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 "CXIndexDataConsumer.h"
11#include "CIndexDiagnostic.h"
12#include "CXTranslationUnit.h"
13#include "clang/AST/Attr.h"
14#include "clang/AST/DeclCXX.h"
15#include "clang/AST/DeclTemplate.h"
16#include "clang/AST/DeclVisitor.h"
17#include "clang/Frontend/ASTUnit.h"
18
19using namespace clang;
20using namespace clang::index;
21using namespace cxindex;
22using namespace cxcursor;
23
24namespace {
25class IndexingDeclVisitor : public ConstDeclVisitor<IndexingDeclVisitor, bool> {
26  CXIndexDataConsumer &DataConsumer;
27  SourceLocation DeclLoc;
28  const DeclContext *LexicalDC;
29
30public:
31  IndexingDeclVisitor(CXIndexDataConsumer &dataConsumer, SourceLocation Loc,
32                      const DeclContext *lexicalDC)
33    : DataConsumer(dataConsumer), DeclLoc(Loc), LexicalDC(lexicalDC) { }
34
35  bool VisitFunctionDecl(const FunctionDecl *D) {
36    DataConsumer.handleFunction(D);
37    return true;
38  }
39
40  bool VisitVarDecl(const VarDecl *D) {
41    DataConsumer.handleVar(D);
42    return true;
43  }
44
45  bool VisitFieldDecl(const FieldDecl *D) {
46    DataConsumer.handleField(D);
47    return true;
48  }
49
50  bool VisitMSPropertyDecl(const MSPropertyDecl *D) {
51    return true;
52  }
53
54  bool VisitEnumConstantDecl(const EnumConstantDecl *D) {
55    DataConsumer.handleEnumerator(D);
56    return true;
57  }
58
59  bool VisitTypedefNameDecl(const TypedefNameDecl *D) {
60    DataConsumer.handleTypedefName(D);
61    return true;
62  }
63
64  bool VisitTagDecl(const TagDecl *D) {
65    DataConsumer.handleTagDecl(D);
66    return true;
67  }
68
69  bool VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
70    DataConsumer.handleObjCInterface(D);
71    return true;
72  }
73
74  bool VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
75    DataConsumer.handleObjCProtocol(D);
76    return true;
77  }
78
79  bool VisitObjCImplementationDecl(const ObjCImplementationDecl *D) {
80    DataConsumer.handleObjCImplementation(D);
81    return true;
82  }
83
84  bool VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
85    DataConsumer.handleObjCCategory(D);
86    return true;
87  }
88
89  bool VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
90    DataConsumer.handleObjCCategoryImpl(D);
91    return true;
92  }
93
94  bool VisitObjCMethodDecl(const ObjCMethodDecl *D) {
95    if (isa<ObjCImplDecl>(LexicalDC) && !D->isThisDeclarationADefinition())
96      DataConsumer.handleSynthesizedObjCMethod(D, DeclLoc, LexicalDC);
97    else
98      DataConsumer.handleObjCMethod(D);
99    return true;
100  }
101
102  bool VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
103    DataConsumer.handleObjCProperty(D);
104    return true;
105  }
106
107  bool VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
108    DataConsumer.handleSynthesizedObjCProperty(D);
109    return true;
110  }
111
112  bool VisitNamespaceDecl(const NamespaceDecl *D) {
113    DataConsumer.handleNamespace(D);
114    return true;
115  }
116
117  bool VisitUsingDecl(const UsingDecl *D) {
118    return true;
119  }
120
121  bool VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
122    return true;
123  }
124
125  bool VisitClassTemplateDecl(const ClassTemplateDecl *D) {
126    DataConsumer.handleClassTemplate(D);
127    return true;
128  }
129
130  bool VisitClassTemplateSpecializationDecl(const
131                                           ClassTemplateSpecializationDecl *D) {
132    DataConsumer.handleTagDecl(D);
133    return true;
134  }
135
136  bool VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
137    DataConsumer.handleFunctionTemplate(D);
138    return true;
139  }
140
141  bool VisitTypeAliasTemplateDecl(const TypeAliasTemplateDecl *D) {
142    DataConsumer.handleTypeAliasTemplate(D);
143    return true;
144  }
145
146  bool VisitImportDecl(const ImportDecl *D) {
147    DataConsumer.importedModule(D);
148    return true;
149  }
150};
151}
152
153bool CXIndexDataConsumer::handleDeclOccurence(const Decl *D,
154                                              SymbolRoleSet Roles,
155                                             ArrayRef<SymbolRelation> Relations,
156                                              FileID FID, unsigned Offset,
157                                              ASTNodeInfo ASTNode) {
158  SourceLocation Loc = getASTContext().getSourceManager()
159      .getLocForStartOfFile(FID).getLocWithOffset(Offset);
160
161  if (Roles & (unsigned)SymbolRole::Reference) {
162    const NamedDecl *ND = dyn_cast<NamedDecl>(D);
163    if (!ND)
164      return true;
165
166    if (auto *ObjCID = dyn_cast_or_null<ObjCInterfaceDecl>(ASTNode.OrigD)) {
167      if (!ObjCID->isThisDeclarationADefinition() &&
168          ObjCID->getLocation() == Loc) {
169        // The libclang API treats this as ObjCClassRef declaration.
170        IndexingDeclVisitor(*this, Loc, nullptr).Visit(ObjCID);
171        return true;
172      }
173    }
174    if (auto *ObjCPD = dyn_cast_or_null<ObjCProtocolDecl>(ASTNode.OrigD)) {
175      if (!ObjCPD->isThisDeclarationADefinition() &&
176          ObjCPD->getLocation() == Loc) {
177        // The libclang API treats this as ObjCProtocolRef declaration.
178        IndexingDeclVisitor(*this, Loc, nullptr).Visit(ObjCPD);
179        return true;
180      }
181    }
182
183    CXIdxEntityRefKind Kind = CXIdxEntityRef_Direct;
184    if (Roles & (unsigned)SymbolRole::Implicit) {
185      Kind = CXIdxEntityRef_Implicit;
186    }
187
188    CXCursor Cursor;
189    if (ASTNode.OrigE) {
190      Cursor = cxcursor::MakeCXCursor(ASTNode.OrigE,
191                                      cast<Decl>(ASTNode.ContainerDC),
192                                      getCXTU());
193    } else {
194      if (ASTNode.OrigD) {
195        if (auto *OrigND = dyn_cast<NamedDecl>(ASTNode.OrigD))
196          Cursor = getRefCursor(OrigND, Loc);
197        else
198          Cursor = MakeCXCursor(ASTNode.OrigD, CXTU);
199      } else {
200        Cursor = getRefCursor(ND, Loc);
201      }
202    }
203    handleReference(ND, Loc, Cursor,
204                    dyn_cast_or_null<NamedDecl>(ASTNode.Parent),
205                    ASTNode.ContainerDC, ASTNode.OrigE, Kind);
206
207  } else {
208    const DeclContext *LexicalDC = ASTNode.ContainerDC;
209    if (!LexicalDC) {
210      for (const auto &SymRel : Relations) {
211        if (SymRel.Roles & (unsigned)SymbolRole::RelationChildOf)
212          LexicalDC = dyn_cast<DeclContext>(SymRel.RelatedSymbol);
213      }
214    }
215    IndexingDeclVisitor(*this, Loc, LexicalDC).Visit(ASTNode.OrigD);
216  }
217
218  return !shouldAbort();
219}
220
221bool CXIndexDataConsumer::handleModuleOccurence(const ImportDecl *ImportD,
222                                                SymbolRoleSet Roles,
223                                                FileID FID,
224                                                unsigned Offset) {
225  IndexingDeclVisitor(*this, SourceLocation(), nullptr).Visit(ImportD);
226  return !shouldAbort();
227}
228
229void CXIndexDataConsumer::finish() {
230  indexDiagnostics();
231}
232
233
234CXIndexDataConsumer::ObjCProtocolListInfo::ObjCProtocolListInfo(
235                                    const ObjCProtocolList &ProtList,
236                                    CXIndexDataConsumer &IdxCtx,
237                                    ScratchAlloc &SA) {
238  ObjCInterfaceDecl::protocol_loc_iterator LI = ProtList.loc_begin();
239  for (ObjCInterfaceDecl::protocol_iterator
240         I = ProtList.begin(), E = ProtList.end(); I != E; ++I, ++LI) {
241    SourceLocation Loc = *LI;
242    ObjCProtocolDecl *PD = *I;
243    ProtEntities.push_back(EntityInfo());
244    IdxCtx.getEntityInfo(PD, ProtEntities.back(), SA);
245    CXIdxObjCProtocolRefInfo ProtInfo = { nullptr,
246                                MakeCursorObjCProtocolRef(PD, Loc, IdxCtx.CXTU),
247                                IdxCtx.getIndexLoc(Loc) };
248    ProtInfos.push_back(ProtInfo);
249
250    if (IdxCtx.shouldSuppressRefs())
251      IdxCtx.markEntityOccurrenceInFile(PD, Loc);
252  }
253
254  for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
255    ProtInfos[i].protocol = &ProtEntities[i];
256
257  for (unsigned i = 0, e = ProtInfos.size(); i != e; ++i)
258    Prots.push_back(&ProtInfos[i]);
259}
260
261
262IBOutletCollectionInfo::IBOutletCollectionInfo(
263                                          const IBOutletCollectionInfo &other)
264  : AttrInfo(CXIdxAttr_IBOutletCollection, other.cursor, other.loc, other.A) {
265
266  IBCollInfo.attrInfo = this;
267  IBCollInfo.classCursor = other.IBCollInfo.classCursor;
268  IBCollInfo.classLoc = other.IBCollInfo.classLoc;
269  if (other.IBCollInfo.objcClass) {
270    ClassInfo = other.ClassInfo;
271    IBCollInfo.objcClass = &ClassInfo;
272  } else
273    IBCollInfo.objcClass = nullptr;
274}
275
276AttrListInfo::AttrListInfo(const Decl *D, CXIndexDataConsumer &IdxCtx)
277  : SA(IdxCtx), ref_cnt(0) {
278
279  if (!D->hasAttrs())
280    return;
281
282  for (const auto *A : D->attrs()) {
283    CXCursor C = MakeCXCursor(A, D, IdxCtx.CXTU);
284    CXIdxLoc Loc =  IdxCtx.getIndexLoc(A->getLocation());
285    switch (C.kind) {
286    default:
287      Attrs.push_back(AttrInfo(CXIdxAttr_Unexposed, C, Loc, A));
288      break;
289    case CXCursor_IBActionAttr:
290      Attrs.push_back(AttrInfo(CXIdxAttr_IBAction, C, Loc, A));
291      break;
292    case CXCursor_IBOutletAttr:
293      Attrs.push_back(AttrInfo(CXIdxAttr_IBOutlet, C, Loc, A));
294      break;
295    case CXCursor_IBOutletCollectionAttr:
296      IBCollAttrs.push_back(IBOutletCollectionInfo(C, Loc, A));
297      break;
298    }
299  }
300
301  for (unsigned i = 0, e = IBCollAttrs.size(); i != e; ++i) {
302    IBOutletCollectionInfo &IBInfo = IBCollAttrs[i];
303    CXAttrs.push_back(&IBInfo);
304
305    const IBOutletCollectionAttr *
306      IBAttr = cast<IBOutletCollectionAttr>(IBInfo.A);
307    SourceLocation InterfaceLocStart =
308        IBAttr->getInterfaceLoc()->getTypeLoc().getLocStart();
309    IBInfo.IBCollInfo.attrInfo = &IBInfo;
310    IBInfo.IBCollInfo.classLoc = IdxCtx.getIndexLoc(InterfaceLocStart);
311    IBInfo.IBCollInfo.objcClass = nullptr;
312    IBInfo.IBCollInfo.classCursor = clang_getNullCursor();
313    QualType Ty = IBAttr->getInterface();
314    if (const ObjCObjectType *ObjectTy = Ty->getAs<ObjCObjectType>()) {
315      if (const ObjCInterfaceDecl *InterD = ObjectTy->getInterface()) {
316        IdxCtx.getEntityInfo(InterD, IBInfo.ClassInfo, SA);
317        IBInfo.IBCollInfo.objcClass = &IBInfo.ClassInfo;
318        IBInfo.IBCollInfo.classCursor =
319            MakeCursorObjCClassRef(InterD, InterfaceLocStart, IdxCtx.CXTU);
320      }
321    }
322  }
323
324  for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
325    CXAttrs.push_back(&Attrs[i]);
326}
327
328IntrusiveRefCntPtr<AttrListInfo>
329AttrListInfo::create(const Decl *D, CXIndexDataConsumer &IdxCtx) {
330  ScratchAlloc SA(IdxCtx);
331  AttrListInfo *attrs = SA.allocate<AttrListInfo>();
332  return new (attrs) AttrListInfo(D, IdxCtx);
333}
334
335CXIndexDataConsumer::CXXBasesListInfo::CXXBasesListInfo(const CXXRecordDecl *D,
336                                   CXIndexDataConsumer &IdxCtx,
337                                   ScratchAlloc &SA) {
338  for (const auto &Base : D->bases()) {
339    BaseEntities.push_back(EntityInfo());
340    const NamedDecl *BaseD = nullptr;
341    QualType T = Base.getType();
342    SourceLocation Loc = getBaseLoc(Base);
343
344    if (const TypedefType *TDT = T->getAs<TypedefType>()) {
345      BaseD = TDT->getDecl();
346    } else if (const TemplateSpecializationType *
347          TST = T->getAs<TemplateSpecializationType>()) {
348      BaseD = TST->getTemplateName().getAsTemplateDecl();
349    } else if (const RecordType *RT = T->getAs<RecordType>()) {
350      BaseD = RT->getDecl();
351    }
352
353    if (BaseD)
354      IdxCtx.getEntityInfo(BaseD, BaseEntities.back(), SA);
355    CXIdxBaseClassInfo BaseInfo = { nullptr,
356                         MakeCursorCXXBaseSpecifier(&Base, IdxCtx.CXTU),
357                         IdxCtx.getIndexLoc(Loc) };
358    BaseInfos.push_back(BaseInfo);
359  }
360
361  for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i) {
362    if (BaseEntities[i].name && BaseEntities[i].USR)
363      BaseInfos[i].base = &BaseEntities[i];
364  }
365
366  for (unsigned i = 0, e = BaseInfos.size(); i != e; ++i)
367    CXBases.push_back(&BaseInfos[i]);
368}
369
370SourceLocation CXIndexDataConsumer::CXXBasesListInfo::getBaseLoc(
371                                           const CXXBaseSpecifier &Base) const {
372  SourceLocation Loc = Base.getSourceRange().getBegin();
373  TypeLoc TL;
374  if (Base.getTypeSourceInfo())
375    TL = Base.getTypeSourceInfo()->getTypeLoc();
376  if (TL.isNull())
377    return Loc;
378
379  if (QualifiedTypeLoc QL = TL.getAs<QualifiedTypeLoc>())
380    TL = QL.getUnqualifiedLoc();
381
382  if (ElaboratedTypeLoc EL = TL.getAs<ElaboratedTypeLoc>())
383    return EL.getNamedTypeLoc().getBeginLoc();
384  if (DependentNameTypeLoc DL = TL.getAs<DependentNameTypeLoc>())
385    return DL.getNameLoc();
386  if (DependentTemplateSpecializationTypeLoc DTL =
387          TL.getAs<DependentTemplateSpecializationTypeLoc>())
388    return DTL.getTemplateNameLoc();
389
390  return Loc;
391}
392
393const char *ScratchAlloc::toCStr(StringRef Str) {
394  if (Str.empty())
395    return "";
396  if (Str.data()[Str.size()] == '\0')
397    return Str.data();
398  return copyCStr(Str);
399}
400
401const char *ScratchAlloc::copyCStr(StringRef Str) {
402  char *buf = IdxCtx.StrScratch.Allocate<char>(Str.size() + 1);
403  std::uninitialized_copy(Str.begin(), Str.end(), buf);
404  buf[Str.size()] = '\0';
405  return buf;
406}
407
408void CXIndexDataConsumer::setASTContext(ASTContext &ctx) {
409  Ctx = &ctx;
410  cxtu::getASTUnit(CXTU)->setASTContext(&ctx);
411}
412
413void CXIndexDataConsumer::setPreprocessor(Preprocessor &PP) {
414  cxtu::getASTUnit(CXTU)->setPreprocessor(&PP);
415}
416
417bool CXIndexDataConsumer::isFunctionLocalDecl(const Decl *D) {
418  assert(D);
419
420  if (!D->getParentFunctionOrMethod())
421    return false;
422
423  if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
424    switch (ND->getFormalLinkage()) {
425    case NoLinkage:
426    case VisibleNoLinkage:
427    case InternalLinkage:
428      return true;
429    case UniqueExternalLinkage:
430      llvm_unreachable("Not a sema linkage");
431    case ExternalLinkage:
432      return false;
433    }
434  }
435
436  return true;
437}
438
439bool CXIndexDataConsumer::shouldAbort() {
440  if (!CB.abortQuery)
441    return false;
442  return CB.abortQuery(ClientData, nullptr);
443}
444
445void CXIndexDataConsumer::enteredMainFile(const FileEntry *File) {
446  if (File && CB.enteredMainFile) {
447    CXIdxClientFile idxFile =
448      CB.enteredMainFile(ClientData,
449                         static_cast<CXFile>(const_cast<FileEntry *>(File)),
450                         nullptr);
451    FileMap[File] = idxFile;
452  }
453}
454
455void CXIndexDataConsumer::ppIncludedFile(SourceLocation hashLoc,
456                                     StringRef filename,
457                                     const FileEntry *File,
458                                     bool isImport, bool isAngled,
459                                     bool isModuleImport) {
460  if (!CB.ppIncludedFile)
461    return;
462
463  ScratchAlloc SA(*this);
464  CXIdxIncludedFileInfo Info = { getIndexLoc(hashLoc),
465                                 SA.toCStr(filename),
466                                 static_cast<CXFile>(
467                                   const_cast<FileEntry *>(File)),
468                                 isImport, isAngled, isModuleImport };
469  CXIdxClientFile idxFile = CB.ppIncludedFile(ClientData, &Info);
470  FileMap[File] = idxFile;
471}
472
473void CXIndexDataConsumer::importedModule(const ImportDecl *ImportD) {
474  if (!CB.importedASTFile)
475    return;
476
477  Module *Mod = ImportD->getImportedModule();
478  if (!Mod)
479    return;
480
481  CXIdxImportedASTFileInfo Info = {
482                                    static_cast<CXFile>(
483                                    const_cast<FileEntry *>(Mod->getASTFile())),
484                                    Mod,
485                                    getIndexLoc(ImportD->getLocation()),
486                                    ImportD->isImplicit()
487                                  };
488  CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
489  (void)astFile;
490}
491
492void CXIndexDataConsumer::importedPCH(const FileEntry *File) {
493  if (!CB.importedASTFile)
494    return;
495
496  CXIdxImportedASTFileInfo Info = {
497                                    static_cast<CXFile>(
498                                      const_cast<FileEntry *>(File)),
499                                    /*module=*/nullptr,
500                                    getIndexLoc(SourceLocation()),
501                                    /*isImplicit=*/false
502                                  };
503  CXIdxClientASTFile astFile = CB.importedASTFile(ClientData, &Info);
504  (void)astFile;
505}
506
507void CXIndexDataConsumer::startedTranslationUnit() {
508  CXIdxClientContainer idxCont = nullptr;
509  if (CB.startedTranslationUnit)
510    idxCont = CB.startedTranslationUnit(ClientData, nullptr);
511  addContainerInMap(Ctx->getTranslationUnitDecl(), idxCont);
512}
513
514void CXIndexDataConsumer::indexDiagnostics() {
515  if (!hasDiagnosticCallback())
516    return;
517
518  CXDiagnosticSetImpl *DiagSet = cxdiag::lazyCreateDiags(getCXTU());
519  handleDiagnosticSet(DiagSet);
520}
521
522void CXIndexDataConsumer::handleDiagnosticSet(CXDiagnostic CXDiagSet) {
523  if (!CB.diagnostic)
524    return;
525
526  CB.diagnostic(ClientData, CXDiagSet, nullptr);
527}
528
529bool CXIndexDataConsumer::handleDecl(const NamedDecl *D,
530                                 SourceLocation Loc, CXCursor Cursor,
531                                 DeclInfo &DInfo,
532                                 const DeclContext *LexicalDC,
533                                 const DeclContext *SemaDC) {
534  if (!CB.indexDeclaration || !D)
535    return false;
536  if (D->isImplicit() && shouldIgnoreIfImplicit(D))
537    return false;
538
539  ScratchAlloc SA(*this);
540  getEntityInfo(D, DInfo.EntInfo, SA);
541  if ((!shouldIndexFunctionLocalSymbols() && !DInfo.EntInfo.USR)
542      || Loc.isInvalid())
543    return false;
544
545  if (!LexicalDC)
546    LexicalDC = D->getLexicalDeclContext();
547
548  if (shouldSuppressRefs())
549    markEntityOccurrenceInFile(D, Loc);
550
551  DInfo.entityInfo = &DInfo.EntInfo;
552  DInfo.cursor = Cursor;
553  DInfo.loc = getIndexLoc(Loc);
554  DInfo.isImplicit = D->isImplicit();
555
556  DInfo.attributes = DInfo.EntInfo.attributes;
557  DInfo.numAttributes = DInfo.EntInfo.numAttributes;
558
559  if (!SemaDC)
560    SemaDC = D->getDeclContext();
561  getContainerInfo(SemaDC, DInfo.SemanticContainer);
562  DInfo.semanticContainer = &DInfo.SemanticContainer;
563
564  if (LexicalDC == SemaDC) {
565    DInfo.lexicalContainer = &DInfo.SemanticContainer;
566  } else if (isTemplateImplicitInstantiation(D)) {
567    // Implicit instantiations have the lexical context of where they were
568    // instantiated first. We choose instead the semantic context because:
569    // 1) at the time that we see the instantiation we have not seen the
570    //   function where it occurred yet.
571    // 2) the lexical context of the first instantiation is not useful
572    //   information anyway.
573    DInfo.lexicalContainer = &DInfo.SemanticContainer;
574  } else {
575    getContainerInfo(LexicalDC, DInfo.LexicalContainer);
576    DInfo.lexicalContainer = &DInfo.LexicalContainer;
577  }
578
579  if (DInfo.isContainer) {
580    getContainerInfo(getEntityContainer(D), DInfo.DeclAsContainer);
581    DInfo.declAsContainer = &DInfo.DeclAsContainer;
582  }
583
584  CB.indexDeclaration(ClientData, &DInfo);
585  return true;
586}
587
588bool CXIndexDataConsumer::handleObjCContainer(const ObjCContainerDecl *D,
589                                          SourceLocation Loc, CXCursor Cursor,
590                                          ObjCContainerDeclInfo &ContDInfo) {
591  ContDInfo.ObjCContDeclInfo.declInfo = &ContDInfo;
592  return handleDecl(D, Loc, Cursor, ContDInfo);
593}
594
595bool CXIndexDataConsumer::handleFunction(const FunctionDecl *D) {
596  bool isDef = D->isThisDeclarationADefinition();
597  bool isContainer = isDef;
598  bool isSkipped = false;
599  if (D->hasSkippedBody()) {
600    isSkipped = true;
601    isDef = true;
602    isContainer = false;
603  }
604
605  DeclInfo DInfo(!D->isFirstDecl(), isDef, isContainer);
606  if (isSkipped)
607    DInfo.flags |= CXIdxDeclFlag_Skipped;
608  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
609}
610
611bool CXIndexDataConsumer::handleVar(const VarDecl *D) {
612  DeclInfo DInfo(!D->isFirstDecl(), D->isThisDeclarationADefinition(),
613                 /*isContainer=*/false);
614  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
615}
616
617bool CXIndexDataConsumer::handleField(const FieldDecl *D) {
618  DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
619                 /*isContainer=*/false);
620  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
621}
622
623bool CXIndexDataConsumer::handleMSProperty(const MSPropertyDecl *D) {
624  DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
625                 /*isContainer=*/false);
626  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
627}
628
629bool CXIndexDataConsumer::handleEnumerator(const EnumConstantDecl *D) {
630  DeclInfo DInfo(/*isRedeclaration=*/false, /*isDefinition=*/true,
631                 /*isContainer=*/false);
632  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
633}
634
635bool CXIndexDataConsumer::handleTagDecl(const TagDecl *D) {
636  if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(D))
637    return handleCXXRecordDecl(CXXRD, D);
638
639  DeclInfo DInfo(!D->isFirstDecl(), D->isThisDeclarationADefinition(),
640                 D->isThisDeclarationADefinition());
641  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
642}
643
644bool CXIndexDataConsumer::handleTypedefName(const TypedefNameDecl *D) {
645  DeclInfo DInfo(!D->isFirstDecl(), /*isDefinition=*/true,
646                 /*isContainer=*/false);
647  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
648}
649
650bool CXIndexDataConsumer::handleObjCInterface(const ObjCInterfaceDecl *D) {
651  // For @class forward declarations, suppress them the same way as references.
652  if (!D->isThisDeclarationADefinition()) {
653    if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
654      return false; // already occurred.
655
656    // FIXME: This seems like the wrong definition for redeclaration.
657    bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
658    ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true, isRedeclaration,
659                                    /*isImplementation=*/false);
660    return handleObjCContainer(D, D->getLocation(),
661                               MakeCursorObjCClassRef(D, D->getLocation(),
662                                                      CXTU),
663                               ContDInfo);
664  }
665
666  ScratchAlloc SA(*this);
667
668  CXIdxBaseClassInfo BaseClass;
669  EntityInfo BaseEntity;
670  BaseClass.cursor = clang_getNullCursor();
671  if (ObjCInterfaceDecl *SuperD = D->getSuperClass()) {
672    getEntityInfo(SuperD, BaseEntity, SA);
673    SourceLocation SuperLoc = D->getSuperClassLoc();
674    BaseClass.base = &BaseEntity;
675    BaseClass.cursor = MakeCursorObjCSuperClassRef(SuperD, SuperLoc, CXTU);
676    BaseClass.loc = getIndexLoc(SuperLoc);
677
678    if (shouldSuppressRefs())
679      markEntityOccurrenceInFile(SuperD, SuperLoc);
680  }
681
682  ObjCProtocolList EmptyProtoList;
683  ObjCProtocolListInfo ProtInfo(D->isThisDeclarationADefinition()
684                                  ? D->getReferencedProtocols()
685                                  : EmptyProtoList,
686                                *this, SA);
687
688  ObjCInterfaceDeclInfo InterInfo(D);
689  InterInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
690  InterInfo.ObjCInterDeclInfo.containerInfo = &InterInfo.ObjCContDeclInfo;
691  InterInfo.ObjCInterDeclInfo.superInfo = D->getSuperClass() ? &BaseClass
692                                                             : nullptr;
693  InterInfo.ObjCInterDeclInfo.protocols = &InterInfo.ObjCProtoListInfo;
694
695  return handleObjCContainer(D, D->getLocation(), getCursor(D), InterInfo);
696}
697
698bool CXIndexDataConsumer::handleObjCImplementation(
699                                              const ObjCImplementationDecl *D) {
700  ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/false,
701                      /*isRedeclaration=*/true,
702                      /*isImplementation=*/true);
703  return handleObjCContainer(D, D->getLocation(), getCursor(D), ContDInfo);
704}
705
706bool CXIndexDataConsumer::handleObjCProtocol(const ObjCProtocolDecl *D) {
707  if (!D->isThisDeclarationADefinition()) {
708    if (shouldSuppressRefs() && markEntityOccurrenceInFile(D, D->getLocation()))
709      return false; // already occurred.
710
711    // FIXME: This seems like the wrong definition for redeclaration.
712    bool isRedeclaration = D->hasDefinition() || D->getPreviousDecl();
713    ObjCContainerDeclInfo ContDInfo(/*isForwardRef=*/true,
714                                    isRedeclaration,
715                                    /*isImplementation=*/false);
716    return handleObjCContainer(D, D->getLocation(),
717                               MakeCursorObjCProtocolRef(D, D->getLocation(),
718                                                         CXTU),
719                               ContDInfo);
720  }
721
722  ScratchAlloc SA(*this);
723  ObjCProtocolList EmptyProtoList;
724  ObjCProtocolListInfo ProtListInfo(D->isThisDeclarationADefinition()
725                                      ? D->getReferencedProtocols()
726                                      : EmptyProtoList,
727                                    *this, SA);
728
729  ObjCProtocolDeclInfo ProtInfo(D);
730  ProtInfo.ObjCProtoRefListInfo = ProtListInfo.getListInfo();
731
732  return handleObjCContainer(D, D->getLocation(), getCursor(D), ProtInfo);
733}
734
735bool CXIndexDataConsumer::handleObjCCategory(const ObjCCategoryDecl *D) {
736  ScratchAlloc SA(*this);
737
738  ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/false);
739  EntityInfo ClassEntity;
740  const ObjCInterfaceDecl *IFaceD = D->getClassInterface();
741  SourceLocation ClassLoc = D->getLocation();
742  SourceLocation CategoryLoc = D->IsClassExtension() ? ClassLoc
743                                                     : D->getCategoryNameLoc();
744  getEntityInfo(IFaceD, ClassEntity, SA);
745
746  if (shouldSuppressRefs())
747    markEntityOccurrenceInFile(IFaceD, ClassLoc);
748
749  ObjCProtocolListInfo ProtInfo(D->getReferencedProtocols(), *this, SA);
750
751  CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
752  if (IFaceD) {
753    CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
754    CatDInfo.ObjCCatDeclInfo.classCursor =
755        MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
756  } else {
757    CatDInfo.ObjCCatDeclInfo.objcClass = nullptr;
758    CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
759  }
760  CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
761  CatDInfo.ObjCProtoListInfo = ProtInfo.getListInfo();
762  CatDInfo.ObjCCatDeclInfo.protocols = &CatDInfo.ObjCProtoListInfo;
763
764  return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
765}
766
767bool CXIndexDataConsumer::handleObjCCategoryImpl(const ObjCCategoryImplDecl *D) {
768  ScratchAlloc SA(*this);
769
770  const ObjCCategoryDecl *CatD = D->getCategoryDecl();
771  ObjCCategoryDeclInfo CatDInfo(/*isImplementation=*/true);
772  EntityInfo ClassEntity;
773  const ObjCInterfaceDecl *IFaceD = CatD->getClassInterface();
774  SourceLocation ClassLoc = D->getLocation();
775  SourceLocation CategoryLoc = D->getCategoryNameLoc();
776  getEntityInfo(IFaceD, ClassEntity, SA);
777
778  if (shouldSuppressRefs())
779    markEntityOccurrenceInFile(IFaceD, ClassLoc);
780
781  CatDInfo.ObjCCatDeclInfo.containerInfo = &CatDInfo.ObjCContDeclInfo;
782  if (IFaceD) {
783    CatDInfo.ObjCCatDeclInfo.objcClass = &ClassEntity;
784    CatDInfo.ObjCCatDeclInfo.classCursor =
785        MakeCursorObjCClassRef(IFaceD, ClassLoc, CXTU);
786  } else {
787    CatDInfo.ObjCCatDeclInfo.objcClass = nullptr;
788    CatDInfo.ObjCCatDeclInfo.classCursor = clang_getNullCursor();
789  }
790  CatDInfo.ObjCCatDeclInfo.classLoc = getIndexLoc(ClassLoc);
791  CatDInfo.ObjCCatDeclInfo.protocols = nullptr;
792
793  return handleObjCContainer(D, CategoryLoc, getCursor(D), CatDInfo);
794}
795
796bool CXIndexDataConsumer::handleObjCMethod(const ObjCMethodDecl *D) {
797  bool isDef = D->isThisDeclarationADefinition();
798  bool isContainer = isDef;
799  bool isSkipped = false;
800  if (D->hasSkippedBody()) {
801    isSkipped = true;
802    isDef = true;
803    isContainer = false;
804  }
805
806  DeclInfo DInfo(!D->isCanonicalDecl(), isDef, isContainer);
807  if (isSkipped)
808    DInfo.flags |= CXIdxDeclFlag_Skipped;
809  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
810}
811
812bool CXIndexDataConsumer::handleSynthesizedObjCProperty(
813                                                const ObjCPropertyImplDecl *D) {
814  ObjCPropertyDecl *PD = D->getPropertyDecl();
815  auto *DC = D->getDeclContext();
816  return handleReference(PD, D->getLocation(), getCursor(D),
817                         dyn_cast<NamedDecl>(DC), DC);
818}
819
820bool CXIndexDataConsumer::handleSynthesizedObjCMethod(const ObjCMethodDecl *D,
821                                                  SourceLocation Loc,
822                                                 const DeclContext *LexicalDC) {
823  DeclInfo DInfo(/*isRedeclaration=*/true, /*isDefinition=*/true,
824                 /*isContainer=*/false);
825  return handleDecl(D, Loc, getCursor(D), DInfo, LexicalDC, D->getDeclContext());
826}
827
828bool CXIndexDataConsumer::handleObjCProperty(const ObjCPropertyDecl *D) {
829  ScratchAlloc SA(*this);
830
831  ObjCPropertyDeclInfo DInfo;
832  EntityInfo GetterEntity;
833  EntityInfo SetterEntity;
834
835  DInfo.ObjCPropDeclInfo.declInfo = &DInfo;
836
837  if (ObjCMethodDecl *Getter = D->getGetterMethodDecl()) {
838    getEntityInfo(Getter, GetterEntity, SA);
839    DInfo.ObjCPropDeclInfo.getter = &GetterEntity;
840  } else {
841    DInfo.ObjCPropDeclInfo.getter = nullptr;
842  }
843  if (ObjCMethodDecl *Setter = D->getSetterMethodDecl()) {
844    getEntityInfo(Setter, SetterEntity, SA);
845    DInfo.ObjCPropDeclInfo.setter = &SetterEntity;
846  } else {
847    DInfo.ObjCPropDeclInfo.setter = nullptr;
848  }
849
850  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
851}
852
853bool CXIndexDataConsumer::handleNamespace(const NamespaceDecl *D) {
854  DeclInfo DInfo(/*isRedeclaration=*/!D->isOriginalNamespace(),
855                 /*isDefinition=*/true,
856                 /*isContainer=*/true);
857  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
858}
859
860bool CXIndexDataConsumer::handleClassTemplate(const ClassTemplateDecl *D) {
861  return handleCXXRecordDecl(D->getTemplatedDecl(), D);
862}
863
864bool CXIndexDataConsumer::handleFunctionTemplate(const FunctionTemplateDecl *D) {
865  DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
866                 /*isDefinition=*/D->isThisDeclarationADefinition(),
867                 /*isContainer=*/D->isThisDeclarationADefinition());
868  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
869}
870
871bool CXIndexDataConsumer::handleTypeAliasTemplate(const TypeAliasTemplateDecl *D) {
872  DeclInfo DInfo(/*isRedeclaration=*/!D->isCanonicalDecl(),
873                 /*isDefinition=*/true, /*isContainer=*/false);
874  return handleDecl(D, D->getLocation(), getCursor(D), DInfo);
875}
876
877bool CXIndexDataConsumer::handleReference(const NamedDecl *D, SourceLocation Loc,
878                                      const NamedDecl *Parent,
879                                      const DeclContext *DC,
880                                      const Expr *E,
881                                      CXIdxEntityRefKind Kind) {
882  if (!D)
883    return false;
884
885  CXCursor Cursor = E ? MakeCXCursor(E, cast<Decl>(DC), CXTU)
886                      : getRefCursor(D, Loc);
887  return handleReference(D, Loc, Cursor, Parent, DC, E, Kind);
888}
889
890bool CXIndexDataConsumer::handleReference(const NamedDecl *D, SourceLocation Loc,
891                                      CXCursor Cursor,
892                                      const NamedDecl *Parent,
893                                      const DeclContext *DC,
894                                      const Expr *E,
895                                      CXIdxEntityRefKind Kind) {
896  if (!CB.indexEntityReference)
897    return false;
898
899  if (!D)
900    return false;
901  if (Loc.isInvalid())
902    return false;
903  if (!shouldIndexFunctionLocalSymbols() && isFunctionLocalDecl(D))
904    return false;
905  if (isNotFromSourceFile(D->getLocation()))
906    return false;
907  if (D->isImplicit() && shouldIgnoreIfImplicit(D))
908    return false;
909
910  if (shouldSuppressRefs()) {
911    if (markEntityOccurrenceInFile(D, Loc))
912      return false; // already occurred.
913  }
914
915  ScratchAlloc SA(*this);
916  EntityInfo RefEntity, ParentEntity;
917  getEntityInfo(D, RefEntity, SA);
918  if (!RefEntity.USR)
919    return false;
920
921  getEntityInfo(Parent, ParentEntity, SA);
922
923  ContainerInfo Container;
924  getContainerInfo(DC, Container);
925
926  CXIdxEntityRefInfo Info = { Kind,
927                              Cursor,
928                              getIndexLoc(Loc),
929                              &RefEntity,
930                              Parent ? &ParentEntity : nullptr,
931                              &Container };
932  CB.indexEntityReference(ClientData, &Info);
933  return true;
934}
935
936bool CXIndexDataConsumer::isNotFromSourceFile(SourceLocation Loc) const {
937  if (Loc.isInvalid())
938    return true;
939  SourceManager &SM = Ctx->getSourceManager();
940  SourceLocation FileLoc = SM.getFileLoc(Loc);
941  FileID FID = SM.getFileID(FileLoc);
942  return SM.getFileEntryForID(FID) == nullptr;
943}
944
945void CXIndexDataConsumer::addContainerInMap(const DeclContext *DC,
946                                        CXIdxClientContainer container) {
947  if (!DC)
948    return;
949
950  ContainerMapTy::iterator I = ContainerMap.find(DC);
951  if (I == ContainerMap.end()) {
952    if (container)
953      ContainerMap[DC] = container;
954    return;
955  }
956  // Allow changing the container of a previously seen DeclContext so we
957  // can handle invalid user code, like a function re-definition.
958  if (container)
959    I->second = container;
960  else
961    ContainerMap.erase(I);
962}
963
964CXIdxClientEntity CXIndexDataConsumer::getClientEntity(const Decl *D) const {
965  if (!D)
966    return nullptr;
967  EntityMapTy::const_iterator I = EntityMap.find(D);
968  if (I == EntityMap.end())
969    return nullptr;
970  return I->second;
971}
972
973void CXIndexDataConsumer::setClientEntity(const Decl *D, CXIdxClientEntity client) {
974  if (!D)
975    return;
976  EntityMap[D] = client;
977}
978
979bool CXIndexDataConsumer::handleCXXRecordDecl(const CXXRecordDecl *RD,
980                                          const NamedDecl *OrigD) {
981  if (RD->isThisDeclarationADefinition()) {
982    ScratchAlloc SA(*this);
983    CXXClassDeclInfo CXXDInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
984                           /*isDefinition=*/RD->isThisDeclarationADefinition());
985    CXXBasesListInfo BaseList(RD, *this, SA);
986    CXXDInfo.CXXClassInfo.declInfo = &CXXDInfo;
987    CXXDInfo.CXXClassInfo.bases = BaseList.getBases();
988    CXXDInfo.CXXClassInfo.numBases = BaseList.getNumBases();
989
990    if (shouldSuppressRefs()) {
991      // Go through bases and mark them as referenced.
992      for (unsigned i = 0, e = BaseList.getNumBases(); i != e; ++i) {
993        const CXIdxBaseClassInfo *baseInfo = BaseList.getBases()[i];
994        if (baseInfo->base) {
995          const NamedDecl *BaseD = BaseList.BaseEntities[i].Dcl;
996          SourceLocation
997            Loc = SourceLocation::getFromRawEncoding(baseInfo->loc.int_data);
998          markEntityOccurrenceInFile(BaseD, Loc);
999        }
1000      }
1001    }
1002
1003    return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), CXXDInfo);
1004  }
1005
1006  DeclInfo DInfo(/*isRedeclaration=*/!OrigD->isCanonicalDecl(),
1007                 /*isDefinition=*/RD->isThisDeclarationADefinition(),
1008                 /*isContainer=*/RD->isThisDeclarationADefinition());
1009  return handleDecl(OrigD, OrigD->getLocation(), getCursor(OrigD), DInfo);
1010}
1011
1012bool CXIndexDataConsumer::markEntityOccurrenceInFile(const NamedDecl *D,
1013                                                 SourceLocation Loc) {
1014  if (!D || Loc.isInvalid())
1015    return true;
1016
1017  SourceManager &SM = Ctx->getSourceManager();
1018  D = getEntityDecl(D);
1019
1020  std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(SM.getFileLoc(Loc));
1021  FileID FID = LocInfo.first;
1022  if (FID.isInvalid())
1023    return true;
1024
1025  const FileEntry *FE = SM.getFileEntryForID(FID);
1026  if (!FE)
1027    return true;
1028  RefFileOccurrence RefOccur(FE, D);
1029  std::pair<llvm::DenseSet<RefFileOccurrence>::iterator, bool>
1030  res = RefFileOccurrences.insert(RefOccur);
1031  return !res.second; // already in map
1032}
1033
1034const NamedDecl *CXIndexDataConsumer::getEntityDecl(const NamedDecl *D) const {
1035  assert(D);
1036  D = cast<NamedDecl>(D->getCanonicalDecl());
1037
1038  if (const ObjCImplementationDecl *
1039               ImplD = dyn_cast<ObjCImplementationDecl>(D)) {
1040    return getEntityDecl(ImplD->getClassInterface());
1041
1042  } else if (const ObjCCategoryImplDecl *
1043               CatImplD = dyn_cast<ObjCCategoryImplDecl>(D)) {
1044    return getEntityDecl(CatImplD->getCategoryDecl());
1045  } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
1046    if (FunctionTemplateDecl *TemplD = FD->getDescribedFunctionTemplate())
1047      return getEntityDecl(TemplD);
1048  } else if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) {
1049    if (ClassTemplateDecl *TemplD = RD->getDescribedClassTemplate())
1050      return getEntityDecl(TemplD);
1051  }
1052
1053  return D;
1054}
1055
1056const DeclContext *
1057CXIndexDataConsumer::getEntityContainer(const Decl *D) const {
1058  const DeclContext *DC = dyn_cast<DeclContext>(D);
1059  if (DC)
1060    return DC;
1061
1062  if (const ClassTemplateDecl *ClassTempl = dyn_cast<ClassTemplateDecl>(D)) {
1063    DC = ClassTempl->getTemplatedDecl();
1064  } else if (const FunctionTemplateDecl *
1065          FuncTempl = dyn_cast<FunctionTemplateDecl>(D)) {
1066    DC = FuncTempl->getTemplatedDecl();
1067  }
1068
1069  return DC;
1070}
1071
1072CXIdxClientContainer
1073CXIndexDataConsumer::getClientContainerForDC(const DeclContext *DC) const {
1074  if (!DC)
1075    return nullptr;
1076
1077  ContainerMapTy::const_iterator I = ContainerMap.find(DC);
1078  if (I == ContainerMap.end())
1079    return nullptr;
1080
1081  return I->second;
1082}
1083
1084CXIdxClientFile CXIndexDataConsumer::getIndexFile(const FileEntry *File) {
1085  if (!File)
1086    return nullptr;
1087
1088  FileMapTy::iterator FI = FileMap.find(File);
1089  if (FI != FileMap.end())
1090    return FI->second;
1091
1092  return nullptr;
1093}
1094
1095CXIdxLoc CXIndexDataConsumer::getIndexLoc(SourceLocation Loc) const {
1096  CXIdxLoc idxLoc =  { {nullptr, nullptr}, 0 };
1097  if (Loc.isInvalid())
1098    return idxLoc;
1099
1100  idxLoc.ptr_data[0] = const_cast<CXIndexDataConsumer *>(this);
1101  idxLoc.int_data = Loc.getRawEncoding();
1102  return idxLoc;
1103}
1104
1105void CXIndexDataConsumer::translateLoc(SourceLocation Loc,
1106                                   CXIdxClientFile *indexFile, CXFile *file,
1107                                   unsigned *line, unsigned *column,
1108                                   unsigned *offset) {
1109  if (Loc.isInvalid())
1110    return;
1111
1112  SourceManager &SM = Ctx->getSourceManager();
1113  Loc = SM.getFileLoc(Loc);
1114
1115  std::pair<FileID, unsigned> LocInfo = SM.getDecomposedLoc(Loc);
1116  FileID FID = LocInfo.first;
1117  unsigned FileOffset = LocInfo.second;
1118
1119  if (FID.isInvalid())
1120    return;
1121
1122  const FileEntry *FE = SM.getFileEntryForID(FID);
1123  if (indexFile)
1124    *indexFile = getIndexFile(FE);
1125  if (file)
1126    *file = const_cast<FileEntry *>(FE);
1127  if (line)
1128    *line = SM.getLineNumber(FID, FileOffset);
1129  if (column)
1130    *column = SM.getColumnNumber(FID, FileOffset);
1131  if (offset)
1132    *offset = FileOffset;
1133}
1134
1135static CXIdxEntityKind getEntityKindFromSymbolKind(SymbolKind K, SymbolLanguage L);
1136static CXIdxEntityCXXTemplateKind
1137getEntityKindFromSymbolSubKinds(SymbolSubKindSet K);
1138static CXIdxEntityLanguage getEntityLangFromSymbolLang(SymbolLanguage L);
1139
1140void CXIndexDataConsumer::getEntityInfo(const NamedDecl *D,
1141                                    EntityInfo &EntityInfo,
1142                                    ScratchAlloc &SA) {
1143  if (!D)
1144    return;
1145
1146  D = getEntityDecl(D);
1147  EntityInfo.cursor = getCursor(D);
1148  EntityInfo.Dcl = D;
1149  EntityInfo.IndexCtx = this;
1150
1151  SymbolInfo SymInfo = getSymbolInfo(D);
1152  EntityInfo.kind = getEntityKindFromSymbolKind(SymInfo.Kind, SymInfo.Lang);
1153  EntityInfo.templateKind = getEntityKindFromSymbolSubKinds(SymInfo.SubKinds);
1154  EntityInfo.lang = getEntityLangFromSymbolLang(SymInfo.Lang);
1155
1156  if (D->hasAttrs()) {
1157    EntityInfo.AttrList = AttrListInfo::create(D, *this);
1158    EntityInfo.attributes = EntityInfo.AttrList->getAttrs();
1159    EntityInfo.numAttributes = EntityInfo.AttrList->getNumAttrs();
1160  }
1161
1162  if (EntityInfo.kind == CXIdxEntity_Unexposed)
1163    return;
1164
1165  if (IdentifierInfo *II = D->getIdentifier()) {
1166    EntityInfo.name = SA.toCStr(II->getName());
1167
1168  } else if (isa<TagDecl>(D) || isa<FieldDecl>(D) || isa<NamespaceDecl>(D)) {
1169    EntityInfo.name = nullptr; // anonymous tag/field/namespace.
1170
1171  } else {
1172    SmallString<256> StrBuf;
1173    {
1174      llvm::raw_svector_ostream OS(StrBuf);
1175      D->printName(OS);
1176    }
1177    EntityInfo.name = SA.copyCStr(StrBuf.str());
1178  }
1179
1180  {
1181    SmallString<512> StrBuf;
1182    bool Ignore = getDeclCursorUSR(D, StrBuf);
1183    if (Ignore) {
1184      EntityInfo.USR = nullptr;
1185    } else {
1186      EntityInfo.USR = SA.copyCStr(StrBuf.str());
1187    }
1188  }
1189}
1190
1191void CXIndexDataConsumer::getContainerInfo(const DeclContext *DC,
1192                                       ContainerInfo &ContInfo) {
1193  ContInfo.cursor = getCursor(cast<Decl>(DC));
1194  ContInfo.DC = DC;
1195  ContInfo.IndexCtx = this;
1196}
1197
1198CXCursor CXIndexDataConsumer::getRefCursor(const NamedDecl *D, SourceLocation Loc) {
1199  if (const TypeDecl *TD = dyn_cast<TypeDecl>(D))
1200    return MakeCursorTypeRef(TD, Loc, CXTU);
1201  if (const ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D))
1202    return MakeCursorObjCClassRef(ID, Loc, CXTU);
1203  if (const ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D))
1204    return MakeCursorObjCProtocolRef(PD, Loc, CXTU);
1205  if (const TemplateDecl *Template = dyn_cast<TemplateDecl>(D))
1206    return MakeCursorTemplateRef(Template, Loc, CXTU);
1207  if (const NamespaceDecl *Namespace = dyn_cast<NamespaceDecl>(D))
1208    return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
1209  if (const NamespaceAliasDecl *Namespace = dyn_cast<NamespaceAliasDecl>(D))
1210    return MakeCursorNamespaceRef(Namespace, Loc, CXTU);
1211  if (const FieldDecl *Field = dyn_cast<FieldDecl>(D))
1212    return MakeCursorMemberRef(Field, Loc, CXTU);
1213  if (const VarDecl *Var = dyn_cast<VarDecl>(D))
1214    return MakeCursorVariableRef(Var, Loc, CXTU);
1215
1216  return clang_getNullCursor();
1217}
1218
1219bool CXIndexDataConsumer::shouldIgnoreIfImplicit(const Decl *D) {
1220  if (isa<ObjCInterfaceDecl>(D))
1221    return false;
1222  if (isa<ObjCCategoryDecl>(D))
1223    return false;
1224  if (isa<ObjCIvarDecl>(D))
1225    return false;
1226  if (isa<ObjCMethodDecl>(D))
1227    return false;
1228  if (isa<ImportDecl>(D))
1229    return false;
1230  return true;
1231}
1232
1233bool CXIndexDataConsumer::isTemplateImplicitInstantiation(const Decl *D) {
1234  if (const ClassTemplateSpecializationDecl *
1235        SD = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
1236    return SD->getSpecializationKind() == TSK_ImplicitInstantiation;
1237  }
1238  if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
1239    return FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation;
1240  }
1241  return false;
1242}
1243
1244static CXIdxEntityKind getEntityKindFromSymbolKind(SymbolKind K, SymbolLanguage Lang) {
1245  switch (K) {
1246  case SymbolKind::Unknown:
1247  case SymbolKind::Module:
1248  case SymbolKind::Macro:
1249  case SymbolKind::ClassProperty:
1250    return CXIdxEntity_Unexposed;
1251
1252  case SymbolKind::Enum: return CXIdxEntity_Enum;
1253  case SymbolKind::Struct: return CXIdxEntity_Struct;
1254  case SymbolKind::Union: return CXIdxEntity_Union;
1255  case SymbolKind::TypeAlias:
1256    if (Lang == SymbolLanguage::CXX)
1257      return CXIdxEntity_CXXTypeAlias;
1258    return CXIdxEntity_Typedef;
1259  case SymbolKind::Function: return CXIdxEntity_Function;
1260  case SymbolKind::Variable: return CXIdxEntity_Variable;
1261  case SymbolKind::Field:
1262    if (Lang == SymbolLanguage::ObjC)
1263      return CXIdxEntity_ObjCIvar;
1264    return CXIdxEntity_Field;
1265  case SymbolKind::EnumConstant: return CXIdxEntity_EnumConstant;
1266  case SymbolKind::Class:
1267    if (Lang == SymbolLanguage::ObjC)
1268      return CXIdxEntity_ObjCClass;
1269    return CXIdxEntity_CXXClass;
1270  case SymbolKind::Protocol:
1271    if (Lang == SymbolLanguage::ObjC)
1272      return CXIdxEntity_ObjCProtocol;
1273    return CXIdxEntity_CXXInterface;
1274  case SymbolKind::Extension: return CXIdxEntity_ObjCCategory;
1275  case SymbolKind::InstanceMethod:
1276    if (Lang == SymbolLanguage::ObjC)
1277      return CXIdxEntity_ObjCInstanceMethod;
1278    return CXIdxEntity_CXXInstanceMethod;
1279  case SymbolKind::ClassMethod: return CXIdxEntity_ObjCClassMethod;
1280  case SymbolKind::StaticMethod: return CXIdxEntity_CXXStaticMethod;
1281  case SymbolKind::InstanceProperty: return CXIdxEntity_ObjCProperty;
1282  case SymbolKind::StaticProperty: return CXIdxEntity_CXXStaticVariable;
1283  case SymbolKind::Namespace: return CXIdxEntity_CXXNamespace;
1284  case SymbolKind::NamespaceAlias: return CXIdxEntity_CXXNamespaceAlias;
1285  case SymbolKind::Constructor: return CXIdxEntity_CXXConstructor;
1286  case SymbolKind::Destructor: return CXIdxEntity_CXXDestructor;
1287  case SymbolKind::ConversionFunction: return CXIdxEntity_CXXConversionFunction;
1288  }
1289  llvm_unreachable("invalid symbol kind");
1290}
1291
1292static CXIdxEntityCXXTemplateKind
1293getEntityKindFromSymbolSubKinds(SymbolSubKindSet K) {
1294  if (K & (unsigned)SymbolSubKind::TemplatePartialSpecialization)
1295    return CXIdxEntity_TemplatePartialSpecialization;
1296  if (K & (unsigned)SymbolSubKind::TemplateSpecialization)
1297    return CXIdxEntity_TemplateSpecialization;
1298  if (K & (unsigned)SymbolSubKind::Generic)
1299    return CXIdxEntity_Template;
1300  return CXIdxEntity_NonTemplate;
1301}
1302
1303static CXIdxEntityLanguage getEntityLangFromSymbolLang(SymbolLanguage L) {
1304  switch (L) {
1305  case SymbolLanguage::C: return CXIdxEntityLang_C;
1306  case SymbolLanguage::ObjC: return CXIdxEntityLang_ObjC;
1307  case SymbolLanguage::CXX: return CXIdxEntityLang_CXX;
1308  }
1309  llvm_unreachable("invalid symbol language");
1310}
1311