clang  9.0.0svn
ODRHash.cpp
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1 //===-- ODRHash.cpp - Hashing to diagnose ODR failures ----------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 ///
9 /// \file
10 /// This file implements the ODRHash class, which calculates a hash based
11 /// on AST nodes, which is stable across different runs.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #include "clang/AST/ODRHash.h"
16 
17 #include "clang/AST/DeclVisitor.h"
19 #include "clang/AST/StmtVisitor.h"
20 #include "clang/AST/TypeVisitor.h"
21 
22 using namespace clang;
23 
24 void ODRHash::AddStmt(const Stmt *S) {
25  assert(S && "Expecting non-null pointer.");
26  S->ProcessODRHash(ID, *this);
27 }
28 
30  assert(II && "Expecting non-null pointer.");
31  ID.AddString(II->getName());
32 }
33 
34 void ODRHash::AddDeclarationName(DeclarationName Name, bool TreatAsDecl) {
35  if (TreatAsDecl)
36  // Matches the NamedDecl check in AddDecl
37  AddBoolean(true);
38 
39  AddDeclarationNameImpl(Name);
40 
41  if (TreatAsDecl)
42  // Matches the ClassTemplateSpecializationDecl check in AddDecl
43  AddBoolean(false);
44 }
45 
46 void ODRHash::AddDeclarationNameImpl(DeclarationName Name) {
47  // Index all DeclarationName and use index numbers to refer to them.
48  auto Result = DeclNameMap.insert(std::make_pair(Name, DeclNameMap.size()));
49  ID.AddInteger(Result.first->second);
50  if (!Result.second) {
51  // If found in map, the DeclarationName has previously been processed.
52  return;
53  }
54 
55  // First time processing each DeclarationName, also process its details.
56  AddBoolean(Name.isEmpty());
57  if (Name.isEmpty())
58  return;
59 
60  auto Kind = Name.getNameKind();
61  ID.AddInteger(Kind);
62  switch (Kind) {
65  break;
69  Selector S = Name.getObjCSelector();
70  AddBoolean(S.isNull());
73  unsigned NumArgs = S.getNumArgs();
74  for (unsigned i = 0; i < NumArgs; ++i) {
76  }
77  break;
78  }
82  break;
84  ID.AddInteger(Name.getCXXOverloadedOperator());
85  break;
88  break;
91  break;
93  break;
95  auto *Template = Name.getCXXDeductionGuideTemplate();
96  AddBoolean(Template);
97  if (Template) {
98  AddDecl(Template);
99  }
100  }
101  }
102 }
103 
105  assert(NNS && "Expecting non-null pointer.");
106  const auto *Prefix = NNS->getPrefix();
107  AddBoolean(Prefix);
108  if (Prefix) {
109  AddNestedNameSpecifier(Prefix);
110  }
111  auto Kind = NNS->getKind();
112  ID.AddInteger(Kind);
113  switch (Kind) {
116  break;
118  AddDecl(NNS->getAsNamespace());
119  break;
122  break;
125  AddType(NNS->getAsType());
126  break;
129  break;
130  }
131 }
132 
134  auto Kind = Name.getKind();
135  ID.AddInteger(Kind);
136 
137  switch (Kind) {
139  AddDecl(Name.getAsTemplateDecl());
140  break;
141  // TODO: Support these cases.
148  break;
149  }
150 }
151 
153  const auto Kind = TA.getKind();
154  ID.AddInteger(Kind);
155 
156  switch (Kind) {
158  llvm_unreachable("Expected valid TemplateArgument");
160  AddQualType(TA.getAsType());
161  break;
163  AddDecl(TA.getAsDecl());
164  break;
167  break;
171  break;
173  AddStmt(TA.getAsExpr());
174  break;
176  ID.AddInteger(TA.pack_size());
177  for (auto SubTA : TA.pack_elements()) {
178  AddTemplateArgument(SubTA);
179  }
180  break;
181  }
182 }
183 
185  assert(TPL && "Expecting non-null pointer.");
186 
187  ID.AddInteger(TPL->size());
188  for (auto *ND : TPL->asArray()) {
189  AddSubDecl(ND);
190  }
191 }
192 
194  DeclNameMap.clear();
195  Bools.clear();
196  ID.clear();
197 }
198 
200  // Append the bools to the end of the data segment backwards. This allows
201  // for the bools data to be compressed 32 times smaller compared to using
202  // ID.AddBoolean
203  const unsigned unsigned_bits = sizeof(unsigned) * CHAR_BIT;
204  const unsigned size = Bools.size();
205  const unsigned remainder = size % unsigned_bits;
206  const unsigned loops = size / unsigned_bits;
207  auto I = Bools.rbegin();
208  unsigned value = 0;
209  for (unsigned i = 0; i < remainder; ++i) {
210  value <<= 1;
211  value |= *I;
212  ++I;
213  }
214  ID.AddInteger(value);
215 
216  for (unsigned i = 0; i < loops; ++i) {
217  value = 0;
218  for (unsigned j = 0; j < unsigned_bits; ++j) {
219  value <<= 1;
220  value |= *I;
221  ++I;
222  }
223  ID.AddInteger(value);
224  }
225 
226  assert(I == Bools.rend());
227  Bools.clear();
228  return ID.ComputeHash();
229 }
230 
231 namespace {
232 // Process a Decl pointer. Add* methods call back into ODRHash while Visit*
233 // methods process the relevant parts of the Decl.
234 class ODRDeclVisitor : public ConstDeclVisitor<ODRDeclVisitor> {
235  typedef ConstDeclVisitor<ODRDeclVisitor> Inherited;
236  llvm::FoldingSetNodeID &ID;
237  ODRHash &Hash;
238 
239 public:
240  ODRDeclVisitor(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
241  : ID(ID), Hash(Hash) {}
242 
243  void AddStmt(const Stmt *S) {
244  Hash.AddBoolean(S);
245  if (S) {
246  Hash.AddStmt(S);
247  }
248  }
249 
250  void AddIdentifierInfo(const IdentifierInfo *II) {
251  Hash.AddBoolean(II);
252  if (II) {
253  Hash.AddIdentifierInfo(II);
254  }
255  }
256 
257  void AddQualType(QualType T) {
258  Hash.AddQualType(T);
259  }
260 
261  void AddDecl(const Decl *D) {
262  Hash.AddBoolean(D);
263  if (D) {
264  Hash.AddDecl(D);
265  }
266  }
267 
269  Hash.AddTemplateArgument(TA);
270  }
271 
272  void Visit(const Decl *D) {
273  ID.AddInteger(D->getKind());
274  Inherited::Visit(D);
275  }
276 
277  void VisitNamedDecl(const NamedDecl *D) {
278  Hash.AddDeclarationName(D->getDeclName());
279  Inherited::VisitNamedDecl(D);
280  }
281 
282  void VisitValueDecl(const ValueDecl *D) {
283  if (!isa<FunctionDecl>(D)) {
284  AddQualType(D->getType());
285  }
286  Inherited::VisitValueDecl(D);
287  }
288 
289  void VisitVarDecl(const VarDecl *D) {
290  Hash.AddBoolean(D->isStaticLocal());
291  Hash.AddBoolean(D->isConstexpr());
292  const bool HasInit = D->hasInit();
293  Hash.AddBoolean(HasInit);
294  if (HasInit) {
295  AddStmt(D->getInit());
296  }
297  Inherited::VisitVarDecl(D);
298  }
299 
300  void VisitParmVarDecl(const ParmVarDecl *D) {
301  // TODO: Handle default arguments.
302  Inherited::VisitParmVarDecl(D);
303  }
304 
305  void VisitAccessSpecDecl(const AccessSpecDecl *D) {
306  ID.AddInteger(D->getAccess());
307  Inherited::VisitAccessSpecDecl(D);
308  }
309 
310  void VisitStaticAssertDecl(const StaticAssertDecl *D) {
311  AddStmt(D->getAssertExpr());
312  AddStmt(D->getMessage());
313 
314  Inherited::VisitStaticAssertDecl(D);
315  }
316 
317  void VisitFieldDecl(const FieldDecl *D) {
318  const bool IsBitfield = D->isBitField();
319  Hash.AddBoolean(IsBitfield);
320 
321  if (IsBitfield) {
322  AddStmt(D->getBitWidth());
323  }
324 
325  Hash.AddBoolean(D->isMutable());
327 
328  Inherited::VisitFieldDecl(D);
329  }
330 
331  void VisitFunctionDecl(const FunctionDecl *D) {
332  // Handled by the ODRHash for FunctionDecl
333  ID.AddInteger(D->getODRHash());
334 
335  Inherited::VisitFunctionDecl(D);
336  }
337 
338  void VisitCXXMethodDecl(const CXXMethodDecl *D) {
339  // Handled by the ODRHash for FunctionDecl
340 
341  Inherited::VisitCXXMethodDecl(D);
342  }
343 
344  void VisitTypedefNameDecl(const TypedefNameDecl *D) {
346 
347  Inherited::VisitTypedefNameDecl(D);
348  }
349 
350  void VisitTypedefDecl(const TypedefDecl *D) {
351  Inherited::VisitTypedefDecl(D);
352  }
353 
354  void VisitTypeAliasDecl(const TypeAliasDecl *D) {
355  Inherited::VisitTypeAliasDecl(D);
356  }
357 
358  void VisitFriendDecl(const FriendDecl *D) {
359  TypeSourceInfo *TSI = D->getFriendType();
360  Hash.AddBoolean(TSI);
361  if (TSI) {
362  AddQualType(TSI->getType());
363  } else {
364  AddDecl(D->getFriendDecl());
365  }
366  }
367 
368  void VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
369  // Only care about default arguments as part of the definition.
370  const bool hasDefaultArgument =
372  Hash.AddBoolean(hasDefaultArgument);
373  if (hasDefaultArgument) {
375  }
376  Hash.AddBoolean(D->isParameterPack());
377 
378  Inherited::VisitTemplateTypeParmDecl(D);
379  }
380 
381  void VisitNonTypeTemplateParmDecl(const NonTypeTemplateParmDecl *D) {
382  // Only care about default arguments as part of the definition.
383  const bool hasDefaultArgument =
385  Hash.AddBoolean(hasDefaultArgument);
386  if (hasDefaultArgument) {
388  }
389  Hash.AddBoolean(D->isParameterPack());
390 
391  Inherited::VisitNonTypeTemplateParmDecl(D);
392  }
393 
394  void VisitTemplateTemplateParmDecl(const TemplateTemplateParmDecl *D) {
395  // Only care about default arguments as part of the definition.
396  const bool hasDefaultArgument =
398  Hash.AddBoolean(hasDefaultArgument);
399  if (hasDefaultArgument) {
401  }
402  Hash.AddBoolean(D->isParameterPack());
403 
404  Inherited::VisitTemplateTemplateParmDecl(D);
405  }
406 
407  void VisitTemplateDecl(const TemplateDecl *D) {
409 
410  Inherited::VisitTemplateDecl(D);
411  }
412 
413  void VisitRedeclarableTemplateDecl(const RedeclarableTemplateDecl *D) {
415  Inherited::VisitRedeclarableTemplateDecl(D);
416  }
417 
418  void VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
420  ID.AddInteger(D->getTemplatedDecl()->getODRHash());
421  Inherited::VisitFunctionTemplateDecl(D);
422  }
423 
424  void VisitEnumConstantDecl(const EnumConstantDecl *D) {
425  AddStmt(D->getInitExpr());
426  Inherited::VisitEnumConstantDecl(D);
427  }
428 };
429 } // namespace
430 
431 // Only allow a small portion of Decl's to be processed. Remove this once
432 // all Decl's can be handled.
434  if (D->isImplicit()) return false;
435  if (D->getDeclContext() != Parent) return false;
436 
437  switch (D->getKind()) {
438  default:
439  return false;
440  case Decl::AccessSpec:
441  case Decl::CXXConstructor:
442  case Decl::CXXDestructor:
443  case Decl::CXXMethod:
444  case Decl::EnumConstant: // Only found in EnumDecl's.
445  case Decl::Field:
446  case Decl::Friend:
447  case Decl::FunctionTemplate:
448  case Decl::StaticAssert:
449  case Decl::TypeAlias:
450  case Decl::Typedef:
451  case Decl::Var:
452  return true;
453  }
454 }
455 
456 void ODRHash::AddSubDecl(const Decl *D) {
457  assert(D && "Expecting non-null pointer.");
458 
459  ODRDeclVisitor(ID, *this).Visit(D);
460 }
461 
463  assert(Record && Record->hasDefinition() &&
464  "Expected non-null record to be a definition.");
465 
466  const DeclContext *DC = Record;
467  while (DC) {
468  if (isa<ClassTemplateSpecializationDecl>(DC)) {
469  return;
470  }
471  DC = DC->getParent();
472  }
473 
474  AddDecl(Record);
475 
476  // Filter out sub-Decls which will not be processed in order to get an
477  // accurate count of Decl's.
479  for (Decl *SubDecl : Record->decls()) {
480  if (isWhitelistedDecl(SubDecl, Record)) {
481  Decls.push_back(SubDecl);
482  if (auto *Function = dyn_cast<FunctionDecl>(SubDecl)) {
483  // Compute/Preload ODRHash into FunctionDecl.
484  Function->getODRHash();
485  }
486  }
487  }
488 
489  ID.AddInteger(Decls.size());
490  for (auto SubDecl : Decls) {
491  AddSubDecl(SubDecl);
492  }
493 
494  const ClassTemplateDecl *TD = Record->getDescribedClassTemplate();
495  AddBoolean(TD);
496  if (TD) {
498  }
499 
500  ID.AddInteger(Record->getNumBases());
501  auto Bases = Record->bases();
502  for (auto Base : Bases) {
503  AddQualType(Base.getType());
504  ID.AddInteger(Base.isVirtual());
505  ID.AddInteger(Base.getAccessSpecifierAsWritten());
506  }
507 }
508 
510  bool SkipBody) {
511  assert(Function && "Expecting non-null pointer.");
512 
513  // Skip functions that are specializations or in specialization context.
514  const DeclContext *DC = Function;
515  while (DC) {
516  if (isa<ClassTemplateSpecializationDecl>(DC)) return;
517  if (auto *F = dyn_cast<FunctionDecl>(DC)) {
518  if (F->isFunctionTemplateSpecialization()) {
519  if (!isa<CXXMethodDecl>(DC)) return;
520  if (DC->getLexicalParent()->isFileContext()) return;
521  // Inline method specializations are the only supported
522  // specialization for now.
523  }
524  }
525  DC = DC->getParent();
526  }
527 
528  ID.AddInteger(Function->getDeclKind());
529 
530  const auto *SpecializationArgs = Function->getTemplateSpecializationArgs();
531  AddBoolean(SpecializationArgs);
532  if (SpecializationArgs) {
533  ID.AddInteger(SpecializationArgs->size());
534  for (const TemplateArgument &TA : SpecializationArgs->asArray()) {
536  }
537  }
538 
539  if (const auto *Method = dyn_cast<CXXMethodDecl>(Function)) {
540  AddBoolean(Method->isConst());
541  AddBoolean(Method->isVolatile());
542  }
543 
544  ID.AddInteger(Function->getStorageClass());
545  AddBoolean(Function->isInlineSpecified());
546  AddBoolean(Function->isVirtualAsWritten());
547  AddBoolean(Function->isPure());
548  AddBoolean(Function->isDeletedAsWritten());
549  AddBoolean(Function->isExplicitlyDefaulted());
550 
551  AddDecl(Function);
552 
553  AddQualType(Function->getReturnType());
554 
555  ID.AddInteger(Function->param_size());
556  for (auto Param : Function->parameters())
557  AddSubDecl(Param);
558 
559  if (SkipBody) {
560  AddBoolean(false);
561  return;
562  }
563 
564  const bool HasBody = Function->isThisDeclarationADefinition() &&
565  !Function->isDefaulted() && !Function->isDeleted() &&
566  !Function->isLateTemplateParsed();
567  AddBoolean(HasBody);
568  if (!HasBody) {
569  return;
570  }
571 
572  auto *Body = Function->getBody();
573  AddBoolean(Body);
574  if (Body)
575  AddStmt(Body);
576 
577  // Filter out sub-Decls which will not be processed in order to get an
578  // accurate count of Decl's.
580  for (Decl *SubDecl : Function->decls()) {
581  if (isWhitelistedDecl(SubDecl, Function)) {
582  Decls.push_back(SubDecl);
583  }
584  }
585 
586  ID.AddInteger(Decls.size());
587  for (auto SubDecl : Decls) {
588  AddSubDecl(SubDecl);
589  }
590 }
591 
592 void ODRHash::AddEnumDecl(const EnumDecl *Enum) {
593  assert(Enum);
595 
596  AddBoolean(Enum->isScoped());
597  if (Enum->isScoped())
599 
600  if (Enum->getIntegerTypeSourceInfo())
601  AddQualType(Enum->getIntegerType());
602 
603  // Filter out sub-Decls which will not be processed in order to get an
604  // accurate count of Decl's.
606  for (Decl *SubDecl : Enum->decls()) {
607  if (isWhitelistedDecl(SubDecl, Enum)) {
608  assert(isa<EnumConstantDecl>(SubDecl) && "Unexpected Decl");
609  Decls.push_back(SubDecl);
610  }
611  }
612 
613  ID.AddInteger(Decls.size());
614  for (auto SubDecl : Decls) {
615  AddSubDecl(SubDecl);
616  }
617 
618 }
619 
620 void ODRHash::AddDecl(const Decl *D) {
621  assert(D && "Expecting non-null pointer.");
622  D = D->getCanonicalDecl();
623 
624  const NamedDecl *ND = dyn_cast<NamedDecl>(D);
625  AddBoolean(ND);
626  if (!ND) {
627  ID.AddInteger(D->getKind());
628  return;
629  }
630 
632 
633  const auto *Specialization =
634  dyn_cast<ClassTemplateSpecializationDecl>(D);
635  AddBoolean(Specialization);
636  if (Specialization) {
637  const TemplateArgumentList &List = Specialization->getTemplateArgs();
638  ID.AddInteger(List.size());
639  for (const TemplateArgument &TA : List.asArray())
641  }
642 }
643 
644 namespace {
645 // Process a Type pointer. Add* methods call back into ODRHash while Visit*
646 // methods process the relevant parts of the Type.
647 class ODRTypeVisitor : public TypeVisitor<ODRTypeVisitor> {
648  typedef TypeVisitor<ODRTypeVisitor> Inherited;
649  llvm::FoldingSetNodeID &ID;
650  ODRHash &Hash;
651 
652 public:
653  ODRTypeVisitor(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
654  : ID(ID), Hash(Hash) {}
655 
656  void AddStmt(Stmt *S) {
657  Hash.AddBoolean(S);
658  if (S) {
659  Hash.AddStmt(S);
660  }
661  }
662 
663  void AddDecl(Decl *D) {
664  Hash.AddBoolean(D);
665  if (D) {
666  Hash.AddDecl(D);
667  }
668  }
669 
670  void AddQualType(QualType T) {
671  Hash.AddQualType(T);
672  }
673 
674  void AddType(const Type *T) {
675  Hash.AddBoolean(T);
676  if (T) {
677  Hash.AddType(T);
678  }
679  }
680 
682  Hash.AddBoolean(NNS);
683  if (NNS) {
684  Hash.AddNestedNameSpecifier(NNS);
685  }
686  }
687 
688  void AddIdentifierInfo(const IdentifierInfo *II) {
689  Hash.AddBoolean(II);
690  if (II) {
691  Hash.AddIdentifierInfo(II);
692  }
693  }
694 
695  void VisitQualifiers(Qualifiers Quals) {
696  ID.AddInteger(Quals.getAsOpaqueValue());
697  }
698 
699  void Visit(const Type *T) {
700  ID.AddInteger(T->getTypeClass());
701  Inherited::Visit(T);
702  }
703 
704  void VisitType(const Type *T) {}
705 
706  void VisitAdjustedType(const AdjustedType *T) {
707  QualType Original = T->getOriginalType();
708  QualType Adjusted = T->getAdjustedType();
709 
710  // The original type and pointee type can be the same, as in the case of
711  // function pointers decaying to themselves. Set a bool and only process
712  // the type once, to prevent doubling the work.
713  SplitQualType split = Adjusted.split();
714  if (auto Pointer = dyn_cast<PointerType>(split.Ty)) {
715  if (Pointer->getPointeeType() == Original) {
716  Hash.AddBoolean(true);
717  ID.AddInteger(split.Quals.getAsOpaqueValue());
718  AddQualType(Original);
719  VisitType(T);
720  return;
721  }
722  }
723 
724  // The original type and pointee type are different, such as in the case
725  // of a array decaying to an element pointer. Set a bool to false and
726  // process both types.
727  Hash.AddBoolean(false);
728  AddQualType(Original);
729  AddQualType(Adjusted);
730 
731  VisitType(T);
732  }
733 
734  void VisitDecayedType(const DecayedType *T) {
735  // getDecayedType and getPointeeType are derived from getAdjustedType
736  // and don't need to be separately processed.
737  VisitAdjustedType(T);
738  }
739 
740  void VisitArrayType(const ArrayType *T) {
742  ID.AddInteger(T->getSizeModifier());
743  VisitQualifiers(T->getIndexTypeQualifiers());
744  VisitType(T);
745  }
746  void VisitConstantArrayType(const ConstantArrayType *T) {
747  T->getSize().Profile(ID);
748  VisitArrayType(T);
749  }
750 
751  void VisitDependentSizedArrayType(const DependentSizedArrayType *T) {
752  AddStmt(T->getSizeExpr());
753  VisitArrayType(T);
754  }
755 
756  void VisitIncompleteArrayType(const IncompleteArrayType *T) {
757  VisitArrayType(T);
758  }
759 
760  void VisitVariableArrayType(const VariableArrayType *T) {
761  AddStmt(T->getSizeExpr());
762  VisitArrayType(T);
763  }
764 
765  void VisitAttributedType(const AttributedType *T) {
766  ID.AddInteger(T->getAttrKind());
769 
770  VisitType(T);
771  }
772 
773  void VisitBlockPointerType(const BlockPointerType *T) {
775  VisitType(T);
776  }
777 
778  void VisitBuiltinType(const BuiltinType *T) {
779  ID.AddInteger(T->getKind());
780  VisitType(T);
781  }
782 
783  void VisitComplexType(const ComplexType *T) {
785  VisitType(T);
786  }
787 
788  void VisitDecltypeType(const DecltypeType *T) {
791  VisitType(T);
792  }
793 
794  void VisitDependentDecltypeType(const DependentDecltypeType *T) {
795  VisitDecltypeType(T);
796  }
797 
798  void VisitDeducedType(const DeducedType *T) {
800  VisitType(T);
801  }
802 
803  void VisitAutoType(const AutoType *T) {
804  ID.AddInteger((unsigned)T->getKeyword());
805  VisitDeducedType(T);
806  }
807 
808  void VisitDeducedTemplateSpecializationType(
810  Hash.AddTemplateName(T->getTemplateName());
811  VisitDeducedType(T);
812  }
813 
814  void VisitDependentAddressSpaceType(const DependentAddressSpaceType *T) {
817  VisitType(T);
818  }
819 
820  void VisitDependentSizedExtVectorType(const DependentSizedExtVectorType *T) {
822  AddStmt(T->getSizeExpr());
823  VisitType(T);
824  }
825 
826  void VisitFunctionType(const FunctionType *T) {
828  T->getExtInfo().Profile(ID);
829  Hash.AddBoolean(T->isConst());
830  Hash.AddBoolean(T->isVolatile());
831  Hash.AddBoolean(T->isRestrict());
832  VisitType(T);
833  }
834 
835  void VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
836  VisitFunctionType(T);
837  }
838 
839  void VisitFunctionProtoType(const FunctionProtoType *T) {
840  ID.AddInteger(T->getNumParams());
841  for (auto ParamType : T->getParamTypes())
842  AddQualType(ParamType);
843 
844  VisitFunctionType(T);
845  }
846 
847  void VisitInjectedClassNameType(const InjectedClassNameType *T) {
848  AddDecl(T->getDecl());
849  VisitType(T);
850  }
851 
852  void VisitMemberPointerType(const MemberPointerType *T) {
854  AddType(T->getClass());
855  VisitType(T);
856  }
857 
858  void VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
860  VisitType(T);
861  }
862 
863  void VisitObjCObjectType(const ObjCObjectType *T) {
864  AddDecl(T->getInterface());
865 
866  auto TypeArgs = T->getTypeArgsAsWritten();
867  ID.AddInteger(TypeArgs.size());
868  for (auto Arg : TypeArgs) {
869  AddQualType(Arg);
870  }
871 
872  auto Protocols = T->getProtocols();
873  ID.AddInteger(Protocols.size());
874  for (auto Protocol : Protocols) {
875  AddDecl(Protocol);
876  }
877 
878  Hash.AddBoolean(T->isKindOfType());
879 
880  VisitType(T);
881  }
882 
883  void VisitObjCInterfaceType(const ObjCInterfaceType *T) {
884  // This type is handled by the parent type ObjCObjectType.
885  VisitObjCObjectType(T);
886  }
887 
888  void VisitObjCTypeParamType(const ObjCTypeParamType *T) {
889  AddDecl(T->getDecl());
890  auto Protocols = T->getProtocols();
891  ID.AddInteger(Protocols.size());
892  for (auto Protocol : Protocols) {
893  AddDecl(Protocol);
894  }
895 
896  VisitType(T);
897  }
898 
899  void VisitPackExpansionType(const PackExpansionType *T) {
900  AddQualType(T->getPattern());
901  VisitType(T);
902  }
903 
904  void VisitParenType(const ParenType *T) {
906  VisitType(T);
907  }
908 
909  void VisitPipeType(const PipeType *T) {
911  Hash.AddBoolean(T->isReadOnly());
912  VisitType(T);
913  }
914 
915  void VisitPointerType(const PointerType *T) {
917  VisitType(T);
918  }
919 
920  void VisitReferenceType(const ReferenceType *T) {
922  VisitType(T);
923  }
924 
925  void VisitLValueReferenceType(const LValueReferenceType *T) {
926  VisitReferenceType(T);
927  }
928 
929  void VisitRValueReferenceType(const RValueReferenceType *T) {
930  VisitReferenceType(T);
931  }
932 
933  void
934  VisitSubstTemplateTypeParmPackType(const SubstTemplateTypeParmPackType *T) {
937  VisitType(T);
938  }
939 
940  void VisitSubstTemplateTypeParmType(const SubstTemplateTypeParmType *T) {
943  VisitType(T);
944  }
945 
946  void VisitTagType(const TagType *T) {
947  AddDecl(T->getDecl());
948  VisitType(T);
949  }
950 
951  void VisitRecordType(const RecordType *T) { VisitTagType(T); }
952  void VisitEnumType(const EnumType *T) { VisitTagType(T); }
953 
954  void VisitTemplateSpecializationType(const TemplateSpecializationType *T) {
955  ID.AddInteger(T->getNumArgs());
956  for (const auto &TA : T->template_arguments()) {
957  Hash.AddTemplateArgument(TA);
958  }
959  Hash.AddTemplateName(T->getTemplateName());
960  VisitType(T);
961  }
962 
963  void VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
964  ID.AddInteger(T->getDepth());
965  ID.AddInteger(T->getIndex());
966  Hash.AddBoolean(T->isParameterPack());
967  AddDecl(T->getDecl());
968  }
969 
970  void VisitTypedefType(const TypedefType *T) {
971  AddDecl(T->getDecl());
972  QualType UnderlyingType = T->getDecl()->getUnderlyingType();
973  VisitQualifiers(UnderlyingType.getQualifiers());
974  while (true) {
975  if (const TypedefType *Underlying =
976  dyn_cast<TypedefType>(UnderlyingType.getTypePtr())) {
977  UnderlyingType = Underlying->getDecl()->getUnderlyingType();
978  continue;
979  }
980  if (const ElaboratedType *Underlying =
981  dyn_cast<ElaboratedType>(UnderlyingType.getTypePtr())) {
982  UnderlyingType = Underlying->getNamedType();
983  continue;
984  }
985 
986  break;
987  }
988  AddType(UnderlyingType.getTypePtr());
989  VisitType(T);
990  }
991 
992  void VisitTypeOfExprType(const TypeOfExprType *T) {
994  Hash.AddBoolean(T->isSugared());
995  if (T->isSugared())
996  AddQualType(T->desugar());
997 
998  VisitType(T);
999  }
1000  void VisitTypeOfType(const TypeOfType *T) {
1002  VisitType(T);
1003  }
1004 
1005  void VisitTypeWithKeyword(const TypeWithKeyword *T) {
1006  ID.AddInteger(T->getKeyword());
1007  VisitType(T);
1008  };
1009 
1010  void VisitDependentNameType(const DependentNameType *T) {
1013  VisitTypeWithKeyword(T);
1014  }
1015 
1016  void VisitDependentTemplateSpecializationType(
1020  ID.AddInteger(T->getNumArgs());
1021  for (const auto &TA : T->template_arguments()) {
1022  Hash.AddTemplateArgument(TA);
1023  }
1024  VisitTypeWithKeyword(T);
1025  }
1026 
1027  void VisitElaboratedType(const ElaboratedType *T) {
1029  AddQualType(T->getNamedType());
1030  VisitTypeWithKeyword(T);
1031  }
1032 
1033  void VisitUnaryTransformType(const UnaryTransformType *T) {
1035  AddQualType(T->getBaseType());
1036  VisitType(T);
1037  }
1038 
1039  void VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
1040  AddDecl(T->getDecl());
1041  VisitType(T);
1042  }
1043 
1044  void VisitVectorType(const VectorType *T) {
1046  ID.AddInteger(T->getNumElements());
1047  ID.AddInteger(T->getVectorKind());
1048  VisitType(T);
1049  }
1050 
1051  void VisitExtVectorType(const ExtVectorType * T) {
1052  VisitVectorType(T);
1053  }
1054 };
1055 } // namespace
1056 
1057 void ODRHash::AddType(const Type *T) {
1058  assert(T && "Expecting non-null pointer.");
1059  ODRTypeVisitor(ID, *this).Visit(T);
1060 }
1061 
1063  AddBoolean(T.isNull());
1064  if (T.isNull())
1065  return;
1066  SplitQualType split = T.split();
1067  ID.AddInteger(split.Quals.getAsOpaqueValue());
1068  AddType(split.Ty);
1069 }
1070 
1072  Bools.push_back(Value);
1073 }
QualType getPattern() const
Retrieve the pattern of this pack expansion, which is the type that will be repeatedly instantiated w...
Definition: Type.h:5423
QualType getDeducedType() const
Get the type deduced for this placeholder type, or null if it&#39;s either not been deduced or was deduce...
Definition: Type.h:4782
Represents a type that was referred to using an elaborated type keyword, e.g., struct S...
Definition: Type.h:5176
const Type * Ty
The locally-unqualified type.
Definition: Type.h:580
Represents a function declaration or definition.
Definition: Decl.h:1743
Smart pointer class that efficiently represents Objective-C method names.
PointerType - C99 6.7.5.1 - Pointer Declarators.
Definition: Type.h:2549
ArrayRef< QualType > getTypeArgsAsWritten() const
Retrieve the type arguments of this object type as they were written.
Definition: Type.h:5696
QualType getElementType() const
Definition: Type.h:6063
QualType getPointeeType() const
Definition: Type.h:2562
Represents the dependent type named by a dependently-scoped typename using declaration, e.g.
Definition: Type.h:4133
A (possibly-)qualified type.
Definition: Type.h:639
base_class_range bases()
Definition: DeclCXX.h:822
void AddBoolean(bool value)
Definition: ODRHash.cpp:1071
unsigned getNumBases() const
Retrieves the number of base classes of this class.
Definition: DeclCXX.h:816
void AddDeclarationName(DeclarationName Name, bool TreatAsDecl=false)
Definition: ODRHash.cpp:34
This file contains the declaration of the ODRHash class, which calculates a hash based on AST nodes...
void Profile(llvm::FoldingSetNodeID &ID) const
Definition: Type.h:3587
Expr * getUnderlyingExpr() const
Definition: Type.h:4303
Stmt - This represents one statement.
Definition: Stmt.h:65
Expr * getBitWidth() const
Definition: Decl.h:2673
void AddQualType(QualType T)
Definition: ODRHash.cpp:1062
Kind getKind() const
Definition: Type.h:2430
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3367
An instance of this object exists for each enum constant that is defined.
Definition: Decl.h:2791
Represents the declaration of a typedef-name via the &#39;typedef&#39; type specifier.
Definition: Decl.h:3023
Microsoft&#39;s &#39;__super&#39; specifier, stored as a CXXRecordDecl* of the class it appeared in...
Represents a qualified type name for which the type name is dependent.
Definition: Type.h:5259
The template argument is an expression, and we&#39;ve not resolved it to one of the other forms yet...
Definition: TemplateBase.h:86
unsigned size() const
Retrieve the number of template arguments in this template argument list.
Definition: DeclTemplate.h:274
NestedNameSpecifier * getQualifier() const
Retrieve the qualification on this type.
Definition: Type.h:5278
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:88
TagDecl * getDecl() const
Definition: Type.cpp:3263
ArrayRef< NamedDecl * > asArray()
Definition: DeclTemplate.h:125
Selector getObjCSelector() const
Get the Objective-C selector stored in this declaration name.
NestedNameSpecifier * getPrefix() const
Return the prefix of this nested name specifier.
OverloadedOperatorKind getCXXOverloadedOperator() const
If this name is the name of an overloadable operator in C++ (e.g., operator+), retrieve the kind of o...
Represents a C++11 auto or C++14 decltype(auto) type.
Definition: Type.h:4796
The base class of the type hierarchy.
Definition: Type.h:1414
Represents an array type, per C99 6.7.5.2 - Array Declarators.
Definition: Type.h:2824
The template argument is a declaration that was provided for a pointer, reference, or pointer to member non-type template parameter.
Definition: TemplateBase.h:63
A container of type source information.
Definition: Decl.h:86
bool isEmpty() const
Evaluates true when this declaration name is empty.
TemplateTypeParmDecl * getDecl() const
Definition: Type.h:4616
A template template parameter that has been substituted for some other template name.
Definition: TemplateName.h:219
bool isVirtualAsWritten() const
Whether this function is marked as virtual explicitly.
Definition: Decl.h:2014
size_t param_size() const
Definition: Decl.h:2292
QualType getElementType() const
Definition: Type.h:2859
bool defaultArgumentWasInherited() const
Determines whether the default argument was inherited from a previous declaration of this template...
TemplateName getTemplateName() const
Retrieve the name of the template that we are deducing.
Definition: Type.h:4850
An identifier, stored as an IdentifierInfo*.
FriendDecl - Represents the declaration of a friend entity, which can be a function, a type, or a templated function or type.
Definition: DeclFriend.h:53
Represents a variable declaration or definition.
Definition: Decl.h:812
Declaration of a redeclarable template.
Definition: DeclTemplate.h:793
ArrayRef< ObjCProtocolDecl * > getProtocols() const
Retrieve all of the protocol qualifiers.
Definition: Type.h:5504
QualType getReturnType() const
Definition: Decl.h:2316
unsigned getNumParams() const
Definition: Type.h:3900
bool hasDefaultArgument() const
Determine whether this template parameter has a default argument.
Represents an empty template argument, e.g., one that has not been deduced.
Definition: TemplateBase.h:56
decl_range decls() const
decls_begin/decls_end - Iterate over the declarations stored in this context.
Definition: DeclBase.h:2012
Represents a C++17 deduced template specialization type.
Definition: Type.h:4832
A namespace, stored as a NamespaceDecl*.
bool isConst() const
Definition: Type.h:3642
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:67
SpecifierKind getKind() const
Determine what kind of nested name specifier is stored.
void AddTemplateArgument(TemplateArgument TA)
Definition: ODRHash.cpp:152
bool hasDefinition() const
Definition: DeclCXX.h:775
Represents a parameter to a function.
Definition: Decl.h:1555
Represents the result of substituting a type for a template type parameter.
Definition: Type.h:4650
The collection of all-type qualifiers we support.
Definition: Type.h:137
void clear()
Definition: ODRHash.cpp:193
PipeType - OpenCL20.
Definition: Type.h:6049
DeclarationName getDeclName() const
Get the actual, stored name of the declaration, which may be a special name.
Definition: Decl.h:297
QualType getOriginalType() const
Definition: Type.h:2613
TypeSourceInfo * getIntegerTypeSourceInfo() const
Return the type source info for the underlying integer type, if no type source info exists...
Definition: Decl.h:3501
Represents a class template specialization, which refers to a class template with a given set of temp...
One of these records is kept for each identifier that is lexed.
TypeSourceInfo * getFriendType() const
If this friend declaration names an (untemplated but possibly dependent) type, return the type; other...
Definition: DeclFriend.h:123
StringLiteral * getMessage()
Definition: DeclCXX.h:3897
Represents a class type in Objective C.
Definition: Type.h:5585
QualType getPointeeType() const
Definition: Type.h:2666
Expr * getAsExpr() const
Retrieve the template argument as an expression.
Definition: TemplateBase.h:329
ArrayRef< QualType > getParamTypes() const
Definition: Type.h:3907
The template argument is an integral value stored in an llvm::APSInt that was provided for an integra...
Definition: TemplateBase.h:71
TemplateDecl * getAsTemplateDecl() const
Retrieve the underlying template declaration that this template name refers to, if known...
NameKind getNameKind() const
Determine what kind of name this is.
Represents a member of a struct/union/class.
Definition: Decl.h:2584
TemplateName getTemplateName() const
Retrieve the name of the template that we are specializing.
Definition: Type.h:4951
const Type * getAsType() const
Retrieve the type stored in this nested name specifier.
An operation on a type.
Definition: TypeVisitor.h:64
NamedDecl * getFriendDecl() const
If this friend declaration doesn&#39;t name a type, return the inner declaration.
Definition: DeclFriend.h:138
Represents the result of substituting a set of types for a template type parameter pack...
Definition: Type.h:4706
void AddTemplateParameterList(const TemplateParameterList *TPL)
Definition: ODRHash.cpp:184
Represents an access specifier followed by colon &#39;:&#39;.
Definition: DeclCXX.h:131
ArrayRef< ParmVarDecl * > parameters() const
Definition: Decl.h:2276
bool isUnarySelector() const
An rvalue reference type, per C++11 [dcl.ref].
Definition: Type.h:2750
UnresolvedUsingTypenameDecl * getDecl() const
Definition: Type.h:4144
bool isBitField() const
Determines whether this field is a bitfield.
Definition: Decl.h:2662
IdentifierInfo * getAsIdentifier() const
Retrieve the identifier stored in this nested name specifier.
A qualified template name, where the qualification is kept to describe the source code as written...
Definition: TemplateName.h:211
Stmt * getBody(const FunctionDecl *&Definition) const
Retrieve the body (definition) of the function.
Definition: Decl.cpp:2787
void AddDecl(const Decl *D)
Definition: ODRHash.cpp:620
void AddFunctionDecl(const FunctionDecl *Function, bool SkipBody=false)
Definition: ODRHash.cpp:509
An unqualified-id that has been assumed to name a function template that will be found by ADL...
Definition: TemplateName.h:207
#define CHAR_BIT
Definition: limits.h:63
bool isMemberSpecialization() const
Determines whether this template was a specialization of a member template.
Definition: DeclTemplate.h:936
NamespaceAliasDecl * getAsNamespaceAlias() const
Retrieve the namespace alias stored in this nested name specifier.
Represents a typeof (or typeof) expression (a GCC extension).
Definition: Type.h:4223
const Type * getClass() const
Definition: Type.h:2802
CXXRecordDecl * getDecl() const
Definition: Type.cpp:3353
bool isConstexpr() const
Whether this variable is (C++11) constexpr.
Definition: Decl.h:1381
#define remainder(__x, __y)
Definition: tgmath.h:1090
Expr * getSizeExpr() const
Definition: Type.h:3003
const Expr * getInitExpr() const
Definition: Decl.h:2810
bool hasDefaultArgument() const
Determine whether this template parameter has a default argument.
ObjCInterfaceDecl * getInterface() const
Gets the interface declaration for this object type, if the base type really is an interface...
Definition: Type.h:5820
bool isParameterPack() const
Whether this template template parameter is a template parameter pack.
Expr * getSizeExpr() const
Definition: Type.h:3060
QualType getPointeeTypeAsWritten() const
Definition: Type.h:2704
virtual Decl * getCanonicalDecl()
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclBase.h:870
QualType getElementType() const
Definition: Type.h:3156
Represents an extended vector type where either the type or size is dependent.
Definition: Type.h:3140
void AddTemplateName(TemplateName Name)
Definition: ODRHash.cpp:133
Represents a K&R-style &#39;int foo()&#39; function, which has no information available about its arguments...
Definition: Type.h:3662
Expr * getAddrSpaceExpr() const
Definition: Type.h:3111
NodeId Parent
Definition: ASTDiff.cpp:191
Represents the declaration of a typedef-name via a C++11 alias-declaration.
Definition: Decl.h:3043
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3699
A dependent template name that has not been resolved to a template (or set of templates).
Definition: TemplateName.h:215
bool isParameterPack() const
Whether this parameter is a non-type template parameter pack.
ObjCTypeParamDecl * getDecl() const
Definition: Type.h:5554
ValueDecl * getAsDecl() const
Retrieve the declaration for a declaration non-type template argument.
Definition: TemplateBase.h:263
Represents an array type in C++ whose size is a value-dependent expression.
Definition: Type.h:3038
TemplateParameterList * getTemplateParameters() const
Get the list of template parameters.
Definition: DeclTemplate.h:436
DeclContext * getLexicalParent()
getLexicalParent - Returns the containing lexical DeclContext.
Definition: DeclBase.h:1779
QualType getElementType() const
Definition: Type.h:2502
bool isInlineSpecified() const
Determine whether the "inline" keyword was specified for this function.
Definition: Decl.h:2356
QualType getCXXNameType() const
If this name is one of the C++ names (of a constructor, destructor, or conversion function)...
unsigned getNumArgs() const
Retrieve the number of template arguments.
Definition: Type.h:5346
NamespaceDecl * getAsNamespace() const
Retrieve the namespace stored in this nested name specifier.
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:636
bool isDefaulted() const
Whether this function is defaulted per C++0x.
Definition: Decl.h:2048
unsigned getAsOpaqueValue() const
Definition: Type.h:250
bool isScopedUsingClassTag() const
Returns true if this is a C++11 scoped enumeration.
Definition: Decl.h:3528
Declaration of a template type parameter.
unsigned getIndex() const
Definition: Type.h:4613
Internal representation of canonical, dependent decltype(expr) types.
Definition: Type.h:4321
The template argument is a null pointer or null pointer to member that was provided for a non-type te...
Definition: TemplateBase.h:67
bool isThisDeclarationADefinition() const
Returns whether this specific declaration of the function is also a definition that does not contain ...
Definition: Decl.h:1997
bool isImplicit() const
isImplicit - Indicates whether the declaration was implicitly generated by the implementation.
Definition: DeclBase.h:551
const TemplateArgumentList * getTemplateSpecializationArgs() const
Retrieve the template arguments used to produce this function template specialization from the primar...
Definition: Decl.cpp:3530
bool isFileContext() const
Definition: DeclBase.h:1833
DeclContext * getDeclContext()
Definition: DeclBase.h:431
QualType getBaseType() const
Definition: Type.h:4362
const IdentifierInfo * getIdentifier() const
Retrieve the type named by the typename specifier as an identifier.
Definition: Type.h:5285
void ProcessODRHash(llvm::FoldingSetNodeID &ID, ODRHash &Hash) const
Calculate a unique representation for a statement that is stable across compiler invocations.
StorageClass getStorageClass() const
Returns the storage class as written in the source.
Definition: Decl.h:2345
ArrayRef< TemplateArgument > asArray() const
Produce this as an array ref.
Definition: DeclTemplate.h:268
NonTypeTemplateParmDecl - Declares a non-type template parameter, e.g., "Size" in.
Represents a C++ template name within the type system.
Definition: TemplateName.h:187
Represents the type decltype(expr) (C++11).
Definition: Type.h:4293
A namespace alias, stored as a NamespaceAliasDecl*.
IdentifierInfo * getAsIdentifierInfo() const
Retrieve the IdentifierInfo * stored in this declaration name, or null if this declaration name isn&#39;t...
A std::pair-like structure for storing a qualified type split into its local qualifiers and its local...
Definition: Type.h:578
QualType desugar() const
Remove a single level of sugar.
Definition: Type.cpp:3193
A unary type transform, which is a type constructed from another.
Definition: Type.h:4336
Qualifiers Quals
The local qualifiers.
Definition: Type.h:583
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition: DeclBase.h:1763
A helper class for Type nodes having an ElaboratedTypeKeyword.
Definition: Type.h:5125
Represents a GCC generic vector type.
Definition: Type.h:3180
ArraySizeModifier getSizeModifier() const
Definition: Type.h:2861
An lvalue reference type, per C++11 [dcl.ref].
Definition: Type.h:2732
TemplateTemplateParmDecl - Declares a template template parameter, e.g., "T" in.
unsigned getNumArgs() const
Common base class for placeholders for types that get replaced by placeholder type deduction: C++11 a...
Definition: Type.h:4756
The result type of a method or function.
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:704
bool defaultArgumentWasInherited() const
Determines whether the default argument was inherited from a previous declaration of this template...
Expr * getUnderlyingExpr() const
Definition: Type.h:4232
SplitQualType split() const
Divides a QualType into its unqualified type and a set of local qualifiers.
Definition: Type.h:6127
A template template parameter pack that has been substituted for a template template argument pack...
Definition: TemplateName.h:224
Decl::Kind getDeclKind() const
Definition: DeclBase.h:1756
Kind
ElaboratedTypeKeyword getKeyword() const
Definition: Type.h:5137
IdentifierInfo * getIdentifierInfoForSlot(unsigned argIndex) const
Retrieve the identifier at a given position in the selector.
bool isParameterPack() const
Returns whether this is a parameter pack.
FunctionDecl * getTemplatedDecl() const
Get the underlying function declaration of the template.
Sugar for parentheses used when specifying types.
Definition: Type.h:2519
QualType getAdjustedType() const
Definition: Type.h:2614
QualType getReturnType() const
Definition: Type.h:3625
bool isPure() const
Whether this virtual function is pure, i.e.
Definition: Decl.h:2023
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of enums...
Definition: Type.h:4443
Represents typeof(type), a GCC extension.
Definition: Type.h:4266
Interfaces are the core concept in Objective-C for object oriented design.
Definition: Type.h:5785
void AddType(const Type *T)
Definition: ODRHash.cpp:1057
TemplateArgument getArgumentPack() const
Definition: Type.cpp:3370
void AddIdentifierInfo(const IdentifierInfo *II)
Definition: ODRHash.cpp:29
QualType getElementType() const
Definition: Type.h:3215
Expr * getInClassInitializer() const
Get the C++11 default member initializer for this member, or null if one has not been set...
Definition: Decl.h:2726
bool isRestrict() const
Definition: Type.h:3644
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:2108
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
bool isParameterPack() const
Definition: Type.h:4614
unsigned pack_size() const
The number of template arguments in the given template argument pack.
Definition: TemplateBase.h:359
const TemplateTypeParmType * getReplacedParameter() const
Gets the template parameter that was substituted for.
Definition: Type.h:4724
QualType getEquivalentType() const
Definition: Type.h:4498
bool isScoped() const
Returns true if this is a C++11 scoped enumeration.
Definition: Decl.h:3525
QualType getInnerType() const
Definition: Type.h:2532
bool hasDefaultArgument() const
Determine whether this template parameter has a default argument.
NestedNameSpecifier * getQualifier() const
Retrieve the qualification on this type.
Definition: Type.h:5213
unsigned getODRHash()
Returns ODRHash of the function.
Definition: Decl.cpp:3839
AutoTypeKeyword getKeyword() const
Definition: Type.h:4811
Qualifiers getIndexTypeQualifiers() const
Definition: Type.h:2865
TypeClass getTypeClass() const
Definition: Type.h:1820
void AddNestedNameSpecifier(const NestedNameSpecifier *NNS)
Definition: ODRHash.cpp:104
ArrayRef< TemplateArgument > template_arguments() const
Definition: Type.h:5352
bool isExplicitlyDefaulted() const
Whether this function is explicitly defaulted per C++0x.
Definition: Decl.h:2053
Represents a C++11 static_assert declaration.
Definition: DeclCXX.h:3871
void AddSubDecl(const Decl *D)
Definition: ODRHash.cpp:456
void AddEnumDecl(const EnumDecl *Enum)
Definition: ODRHash.cpp:592
Represents a pointer type decayed from an array or function type.
Definition: Type.h:2634
The injected class name of a C++ class template or class template partial specialization.
Definition: Type.h:5025
QualType getPointeeType() const
Definition: Type.h:3112
Represents a pack expansion of types.
Definition: Type.h:5402
ArrayRef< TemplateArgument > pack_elements() const
Iterator range referencing all of the elements of a template argument pack.
Definition: TemplateBase.h:353
StringRef getName() const
Return the actual identifier string.
Base class for declarations which introduce a typedef-name.
Definition: Decl.h:2921
Represents a template argument.
Definition: TemplateBase.h:50
Represents a type which was implicitly adjusted by the semantic engine for arbitrary reasons...
Definition: Type.h:2597
Dataflow Directional Tag Classes.
ExtInfo getExtInfo() const
Definition: Type.h:3636
const TemplateArgument & getArgument() const
Definition: TemplateBase.h:498
bool isLateTemplateParsed() const
Whether this templated function will be late parsed.
Definition: Decl.h:2027
NestedNameSpecifier * getQualifier() const
Definition: Type.h:5337
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1264
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:403
The template argument is a pack expansion of a template name that was provided for a template templat...
Definition: TemplateBase.h:79
QualType getUnderlyingType() const
Definition: Decl.h:2976
AccessSpecifier getAccess() const
Definition: DeclBase.h:466
const Expr * getInit() const
Definition: Decl.h:1219
QualType getUnderlyingType() const
Definition: Type.h:4304
void AddCXXRecordDecl(const CXXRecordDecl *Record)
Definition: ODRHash.cpp:462
The name of a declaration.
VectorKind getVectorKind() const
Definition: Type.h:3225
Kind getKind() const
Definition: DeclBase.h:425
bool isKeywordSelector() const
bool isKindOfType() const
Whether this ia a "__kindof" type (semantically).
Definition: Type.cpp:682
Represents an enum.
Definition: Decl.h:3331
A pointer to member type per C++ 8.3.3 - Pointers to members.
Definition: Type.h:2768
Expr * getDefaultArgument() const
Retrieve the default argument, if any.
bool defaultArgumentWasInherited() const
Determines whether the default argument was inherited from a previous declaration of this template...
A type that was preceded by the &#39;template&#39; keyword, stored as a Type*.
const TemplateTypeParmType * getReplacedParameter() const
Gets the template parameter that was substituted for.
Definition: Type.h:4665
QualType getUnderlyingType() const
Definition: Type.h:4361
QualType getModifiedType() const
Definition: Type.h:4497
Represents a pointer to an Objective C object.
Definition: Type.h:5841
Pointer to a block type.
Definition: Type.h:2651
bool isSugared() const
Returns whether this type directly provides sugar.
Definition: Type.cpp:3189
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of structs/unions/cl...
Definition: Type.h:4417
Complex values, per C99 6.2.5p11.
Definition: Type.h:2489
unsigned getNumArgs() const
Retrieve the number of template arguments.
Definition: Type.h:4959
const llvm::APInt & getSize() const
Definition: Type.h:2902
Kind getAttrKind() const
Definition: Type.h:4493
bool isStaticLocal() const
Returns true if a variable with function scope is a static local variable.
Definition: Decl.h:1059
ExtVectorType - Extended vector type.
Definition: Type.h:3299
Base for LValueReferenceType and RValueReferenceType.
Definition: Type.h:2685
bool isVolatile() const
Definition: Type.h:3643
unsigned CalculateHash()
Definition: ODRHash.cpp:199
The template argument is a type.
Definition: TemplateBase.h:59
QualType getUnderlyingType() const
Definition: Type.h:4281
The template argument is actually a parameter pack.
Definition: TemplateBase.h:90
const TemplateArgumentLoc & getDefaultArgument() const
Retrieve the default argument, if any.
A template argument list.
Definition: DeclTemplate.h:214
ClassTemplateDecl * getDescribedClassTemplate() const
Retrieves the class template that is described by this class declaration.
Definition: DeclCXX.cpp:1646
TypedefNameDecl * getDecl() const
Definition: Type.h:4179
ArgKind getKind() const
Return the kind of stored template argument.
Definition: TemplateBase.h:234
unsigned getDepth() const
Definition: Type.h:4612
An attributed type is a type to which a type attribute has been applied.
Definition: Type.h:4472
TemplateDecl * getCXXDeductionGuideTemplate() const
If this name is the name of a C++ deduction guide, return the template associated with that name...
Represents a type parameter type in Objective C.
Definition: Type.h:5511
bool isMutable() const
Determines whether this field is mutable (C++ only).
Definition: Decl.h:2659
Represents a C++ struct/union/class.
Definition: DeclCXX.h:299
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:5311
ArrayRef< TemplateArgument > template_arguments() const
Definition: Type.h:4967
The template argument is a template name that was provided for a template template parameter...
Definition: TemplateBase.h:75
Represents a C array with an unspecified size.
Definition: Type.h:2938
QualType getNamedType() const
Retrieve the type named by the qualified-id.
Definition: Type.h:5216
bool isNull() const
Determine whether this is the empty selector.
QualType getReplacementType() const
Gets the type that was substituted for the template parameter.
Definition: Type.h:4671
Declaration of a class template.
This class is used for builtin types like &#39;int&#39;.
Definition: Type.h:2403
QualType getIntegerType() const
Return the integer type this enum decl corresponds to.
Definition: Decl.h:3485
void AddStmt(const Stmt *S)
Definition: ODRHash.cpp:24
NameKind getKind() const
unsigned getNumElements() const
Definition: Type.h:3216
bool isReadOnly() const
Definition: Type.h:6082
QualType getAsType() const
Retrieve the type for a type template argument.
Definition: TemplateBase.h:256
Represents an extended address space qualifier where the input address space value is dependent...
Definition: Type.h:3098
Represents a type template specialization; the template must be a class template, a type alias templa...
Definition: Type.h:4888
bool isDeleted() const
Whether this function has been deleted.
Definition: Decl.h:2150
static bool isWhitelistedDecl(const Decl *D, const DeclContext *Parent)
Definition: ODRHash.cpp:433
QualType getDefaultArgument() const
Retrieve the default argument, if any.
IdentifierInfo * getCXXLiteralIdentifier() const
If this name is the name of a literal operator, retrieve the identifier associated with it...
QualType getType() const
Definition: Decl.h:647
A set of overloaded template declarations.
Definition: TemplateName.h:203
This represents a decl that may have a name.
Definition: Decl.h:248
Represents a C array with a specified size that is not an integer-constant-expression.
Definition: Type.h:2983
A simple visitor class that helps create declaration visitors.
Definition: DeclVisitor.h:73
The global specifier &#39;::&#39;. There is no stored value.
TemplateName getAsTemplateOrTemplatePattern() const
Retrieve the template argument as a template name; if the argument is a pack expansion, return the pattern as a template name.
Definition: TemplateBase.h:287
bool hasInit() const
Definition: Decl.cpp:2198
Represents the canonical version of C arrays with a specified constant size.
Definition: Type.h:2884
Declaration of a template function.
bool isDeletedAsWritten() const
Definition: Decl.h:2154
QualType getPointeeType() const
Definition: Type.h:2788
QualType getType() const
Return the type wrapped by this type source info.
Definition: Decl.h:97
A single template declaration.
Definition: TemplateName.h:200
const IdentifierInfo * getIdentifier() const
Definition: Type.h:5338
QualType getPointeeType() const
Gets the type pointed to by this ObjC pointer.
Definition: Type.h:5857