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DeclCXX.h
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1 //===- DeclCXX.h - Classes for representing C++ declarations --*- C++ -*-=====//
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 /// \file
11 /// \brief Defines the C++ Decl subclasses, other than those for templates
12 /// (found in DeclTemplate.h) and friends (in DeclFriend.h).
13 //
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef LLVM_CLANG_AST_DECLCXX_H
17 #define LLVM_CLANG_AST_DECLCXX_H
18 
19 #include "clang/AST/ASTContext.h"
21 #include "clang/AST/Attr.h"
22 #include "clang/AST/Decl.h"
24 #include "clang/AST/Expr.h"
28 #include "clang/AST/Redeclarable.h"
29 #include "clang/AST/Stmt.h"
30 #include "clang/AST/Type.h"
31 #include "clang/AST/TypeLoc.h"
33 #include "clang/Basic/LLVM.h"
34 #include "clang/Basic/Lambda.h"
38 #include "clang/Basic/Specifiers.h"
39 #include "llvm/ADT/ArrayRef.h"
40 #include "llvm/ADT/DenseMap.h"
41 #include "llvm/ADT/PointerIntPair.h"
42 #include "llvm/ADT/PointerUnion.h"
43 #include "llvm/ADT/STLExtras.h"
44 #include "llvm/ADT/iterator_range.h"
45 #include "llvm/Support/Casting.h"
46 #include "llvm/Support/Compiler.h"
47 #include "llvm/Support/PointerLikeTypeTraits.h"
48 #include "llvm/Support/TrailingObjects.h"
49 #include <cassert>
50 #include <cstddef>
51 #include <iterator>
52 #include <memory>
53 #include <vector>
54 
55 namespace clang {
56 
57 class ClassTemplateDecl;
58 class ConstructorUsingShadowDecl;
59 class CXXBasePath;
60 class CXXBasePaths;
61 class CXXConstructorDecl;
62 class CXXDestructorDecl;
63 class CXXFinalOverriderMap;
64 class CXXIndirectPrimaryBaseSet;
65 class CXXMethodDecl;
66 class DiagnosticBuilder;
67 class FriendDecl;
68 class FunctionTemplateDecl;
69 class IdentifierInfo;
70 class MemberSpecializationInfo;
71 class TemplateDecl;
72 class TemplateParameterList;
73 class UsingDecl;
74 
75 /// \brief Represents any kind of function declaration, whether it is a
76 /// concrete function or a function template.
78  NamedDecl *Function;
79 
80  AnyFunctionDecl(NamedDecl *ND) : Function(ND) {}
81 
82 public:
83  AnyFunctionDecl(FunctionDecl *FD) : Function(FD) {}
85 
86  /// \brief Implicily converts any function or function template into a
87  /// named declaration.
88  operator NamedDecl *() const { return Function; }
89 
90  /// \brief Retrieve the underlying function or function template.
91  NamedDecl *get() const { return Function; }
92 
94  return AnyFunctionDecl(ND);
95  }
96 };
97 
98 } // namespace clang
99 
100 namespace llvm {
101 
102  // Provide PointerLikeTypeTraits for non-cvr pointers.
103  template<>
106  return F.get();
107  }
108 
109  static ::clang::AnyFunctionDecl getFromVoidPointer(void *P) {
110  return ::clang::AnyFunctionDecl::getFromNamedDecl(
111  static_cast< ::clang::NamedDecl*>(P));
112  }
113 
114  enum { NumLowBitsAvailable = 2 };
115  };
116 
117 } // namespace llvm
118 
119 namespace clang {
120 
121 /// \brief Represents an access specifier followed by colon ':'.
122 ///
123 /// An objects of this class represents sugar for the syntactic occurrence
124 /// of an access specifier followed by a colon in the list of member
125 /// specifiers of a C++ class definition.
126 ///
127 /// Note that they do not represent other uses of access specifiers,
128 /// such as those occurring in a list of base specifiers.
129 /// Also note that this class has nothing to do with so-called
130 /// "access declarations" (C++98 11.3 [class.access.dcl]).
131 class AccessSpecDecl : public Decl {
132  /// \brief The location of the ':'.
134 
136  SourceLocation ASLoc, SourceLocation ColonLoc)
137  : Decl(AccessSpec, DC, ASLoc), ColonLoc(ColonLoc) {
138  setAccess(AS);
139  }
140 
141  AccessSpecDecl(EmptyShell Empty) : Decl(AccessSpec, Empty) {}
142 
143  virtual void anchor();
144 
145 public:
146  /// \brief The location of the access specifier.
147  SourceLocation getAccessSpecifierLoc() const { return getLocation(); }
148 
149  /// \brief Sets the location of the access specifier.
150  void setAccessSpecifierLoc(SourceLocation ASLoc) { setLocation(ASLoc); }
151 
152  /// \brief The location of the colon following the access specifier.
153  SourceLocation getColonLoc() const { return ColonLoc; }
154 
155  /// \brief Sets the location of the colon.
156  void setColonLoc(SourceLocation CLoc) { ColonLoc = CLoc; }
157 
158  SourceRange getSourceRange() const override LLVM_READONLY {
159  return SourceRange(getAccessSpecifierLoc(), getColonLoc());
160  }
161 
163  DeclContext *DC, SourceLocation ASLoc,
164  SourceLocation ColonLoc) {
165  return new (C, DC) AccessSpecDecl(AS, DC, ASLoc, ColonLoc);
166  }
167 
168  static AccessSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID);
169 
170  // Implement isa/cast/dyncast/etc.
171  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
172  static bool classofKind(Kind K) { return K == AccessSpec; }
173 };
174 
175 /// \brief Represents a base class of a C++ class.
176 ///
177 /// Each CXXBaseSpecifier represents a single, direct base class (or
178 /// struct) of a C++ class (or struct). It specifies the type of that
179 /// base class, whether it is a virtual or non-virtual base, and what
180 /// level of access (public, protected, private) is used for the
181 /// derivation. For example:
182 ///
183 /// \code
184 /// class A { };
185 /// class B { };
186 /// class C : public virtual A, protected B { };
187 /// \endcode
188 ///
189 /// In this code, C will have two CXXBaseSpecifiers, one for "public
190 /// virtual A" and the other for "protected B".
192  /// \brief The source code range that covers the full base
193  /// specifier, including the "virtual" (if present) and access
194  /// specifier (if present).
195  SourceRange Range;
196 
197  /// \brief The source location of the ellipsis, if this is a pack
198  /// expansion.
199  SourceLocation EllipsisLoc;
200 
201  /// \brief Whether this is a virtual base class or not.
202  unsigned Virtual : 1;
203 
204  /// \brief Whether this is the base of a class (true) or of a struct (false).
205  ///
206  /// This determines the mapping from the access specifier as written in the
207  /// source code to the access specifier used for semantic analysis.
208  unsigned BaseOfClass : 1;
209 
210  /// \brief Access specifier as written in the source code (may be AS_none).
211  ///
212  /// The actual type of data stored here is an AccessSpecifier, but we use
213  /// "unsigned" here to work around a VC++ bug.
214  unsigned Access : 2;
215 
216  /// \brief Whether the class contains a using declaration
217  /// to inherit the named class's constructors.
218  unsigned InheritConstructors : 1;
219 
220  /// \brief The type of the base class.
221  ///
222  /// This will be a class or struct (or a typedef of such). The source code
223  /// range does not include the \c virtual or the access specifier.
224  TypeSourceInfo *BaseTypeInfo;
225 
226 public:
227  CXXBaseSpecifier() = default;
229  TypeSourceInfo *TInfo, SourceLocation EllipsisLoc)
230  : Range(R), EllipsisLoc(EllipsisLoc), Virtual(V), BaseOfClass(BC),
231  Access(A), InheritConstructors(false), BaseTypeInfo(TInfo) {}
232 
233  /// \brief Retrieves the source range that contains the entire base specifier.
234  SourceRange getSourceRange() const LLVM_READONLY { return Range; }
235  SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); }
236  SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); }
237 
238  /// \brief Get the location at which the base class type was written.
239  SourceLocation getBaseTypeLoc() const LLVM_READONLY {
240  return BaseTypeInfo->getTypeLoc().getLocStart();
241  }
242 
243  /// \brief Determines whether the base class is a virtual base class (or not).
244  bool isVirtual() const { return Virtual; }
245 
246  /// \brief Determine whether this base class is a base of a class declared
247  /// with the 'class' keyword (vs. one declared with the 'struct' keyword).
248  bool isBaseOfClass() const { return BaseOfClass; }
249 
250  /// \brief Determine whether this base specifier is a pack expansion.
251  bool isPackExpansion() const { return EllipsisLoc.isValid(); }
252 
253  /// \brief Determine whether this base class's constructors get inherited.
254  bool getInheritConstructors() const { return InheritConstructors; }
255 
256  /// \brief Set that this base class's constructors should be inherited.
257  void setInheritConstructors(bool Inherit = true) {
258  InheritConstructors = Inherit;
259  }
260 
261  /// \brief For a pack expansion, determine the location of the ellipsis.
263  return EllipsisLoc;
264  }
265 
266  /// \brief Returns the access specifier for this base specifier.
267  ///
268  /// This is the actual base specifier as used for semantic analysis, so
269  /// the result can never be AS_none. To retrieve the access specifier as
270  /// written in the source code, use getAccessSpecifierAsWritten().
272  if ((AccessSpecifier)Access == AS_none)
273  return BaseOfClass? AS_private : AS_public;
274  else
275  return (AccessSpecifier)Access;
276  }
277 
278  /// \brief Retrieves the access specifier as written in the source code
279  /// (which may mean that no access specifier was explicitly written).
280  ///
281  /// Use getAccessSpecifier() to retrieve the access specifier for use in
282  /// semantic analysis.
284  return (AccessSpecifier)Access;
285  }
286 
287  /// \brief Retrieves the type of the base class.
288  ///
289  /// This type will always be an unqualified class type.
290  QualType getType() const {
291  return BaseTypeInfo->getType().getUnqualifiedType();
292  }
293 
294  /// \brief Retrieves the type and source location of the base class.
295  TypeSourceInfo *getTypeSourceInfo() const { return BaseTypeInfo; }
296 };
297 
298 /// \brief Represents a C++ struct/union/class.
299 class CXXRecordDecl : public RecordDecl {
300  friend class ASTDeclReader;
301  friend class ASTDeclWriter;
302  friend class ASTNodeImporter;
303  friend class ASTReader;
304  friend class ASTRecordWriter;
305  friend class ASTWriter;
306  friend class DeclContext;
307  friend class LambdaExpr;
308 
309  friend void FunctionDecl::setPure(bool);
310  friend void TagDecl::startDefinition();
311 
312  /// Values used in DefinitionData fields to represent special members.
313  enum SpecialMemberFlags {
314  SMF_DefaultConstructor = 0x1,
315  SMF_CopyConstructor = 0x2,
316  SMF_MoveConstructor = 0x4,
317  SMF_CopyAssignment = 0x8,
318  SMF_MoveAssignment = 0x10,
319  SMF_Destructor = 0x20,
320  SMF_All = 0x3f
321  };
322 
323  struct DefinitionData {
324  /// \brief True if this class has any user-declared constructors.
325  unsigned UserDeclaredConstructor : 1;
326 
327  /// \brief The user-declared special members which this class has.
328  unsigned UserDeclaredSpecialMembers : 6;
329 
330  /// \brief True when this class is an aggregate.
331  unsigned Aggregate : 1;
332 
333  /// \brief True when this class is a POD-type.
334  unsigned PlainOldData : 1;
335 
336  /// true when this class is empty for traits purposes,
337  /// i.e. has no data members other than 0-width bit-fields, has no
338  /// virtual function/base, and doesn't inherit from a non-empty
339  /// class. Doesn't take union-ness into account.
340  unsigned Empty : 1;
341 
342  /// \brief True when this class is polymorphic, i.e., has at
343  /// least one virtual member or derives from a polymorphic class.
344  unsigned Polymorphic : 1;
345 
346  /// \brief True when this class is abstract, i.e., has at least
347  /// one pure virtual function, (that can come from a base class).
348  unsigned Abstract : 1;
349 
350  /// \brief True when this class has standard layout.
351  ///
352  /// C++11 [class]p7. A standard-layout class is a class that:
353  /// * has no non-static data members of type non-standard-layout class (or
354  /// array of such types) or reference,
355  /// * has no virtual functions (10.3) and no virtual base classes (10.1),
356  /// * has the same access control (Clause 11) for all non-static data
357  /// members
358  /// * has no non-standard-layout base classes,
359  /// * either has no non-static data members in the most derived class and at
360  /// most one base class with non-static data members, or has no base
361  /// classes with non-static data members, and
362  /// * has no base classes of the same type as the first non-static data
363  /// member.
364  unsigned IsStandardLayout : 1;
365 
366  /// \brief True when there are no non-empty base classes.
367  ///
368  /// This is a helper bit of state used to implement IsStandardLayout more
369  /// efficiently.
370  unsigned HasNoNonEmptyBases : 1;
371 
372  /// \brief True when there are private non-static data members.
373  unsigned HasPrivateFields : 1;
374 
375  /// \brief True when there are protected non-static data members.
376  unsigned HasProtectedFields : 1;
377 
378  /// \brief True when there are private non-static data members.
379  unsigned HasPublicFields : 1;
380 
381  /// \brief True if this class (or any subobject) has mutable fields.
382  unsigned HasMutableFields : 1;
383 
384  /// \brief True if this class (or any nested anonymous struct or union)
385  /// has variant members.
386  unsigned HasVariantMembers : 1;
387 
388  /// \brief True if there no non-field members declared by the user.
389  unsigned HasOnlyCMembers : 1;
390 
391  /// \brief True if any field has an in-class initializer, including those
392  /// within anonymous unions or structs.
393  unsigned HasInClassInitializer : 1;
394 
395  /// \brief True if any field is of reference type, and does not have an
396  /// in-class initializer.
397  ///
398  /// In this case, value-initialization of this class is illegal in C++98
399  /// even if the class has a trivial default constructor.
400  unsigned HasUninitializedReferenceMember : 1;
401 
402  /// \brief True if any non-mutable field whose type doesn't have a user-
403  /// provided default ctor also doesn't have an in-class initializer.
404  unsigned HasUninitializedFields : 1;
405 
406  /// \brief True if there are any member using-declarations that inherit
407  /// constructors from a base class.
408  unsigned HasInheritedConstructor : 1;
409 
410  /// \brief True if there are any member using-declarations named
411  /// 'operator='.
412  unsigned HasInheritedAssignment : 1;
413 
414  /// \brief These flags are \c true if a defaulted corresponding special
415  /// member can't be fully analyzed without performing overload resolution.
416  /// @{
417  unsigned NeedOverloadResolutionForCopyConstructor : 1;
418  unsigned NeedOverloadResolutionForMoveConstructor : 1;
419  unsigned NeedOverloadResolutionForMoveAssignment : 1;
420  unsigned NeedOverloadResolutionForDestructor : 1;
421  /// @}
422 
423  /// \brief These flags are \c true if an implicit defaulted corresponding
424  /// special member would be defined as deleted.
425  /// @{
426  unsigned DefaultedCopyConstructorIsDeleted : 1;
427  unsigned DefaultedMoveConstructorIsDeleted : 1;
428  unsigned DefaultedMoveAssignmentIsDeleted : 1;
429  unsigned DefaultedDestructorIsDeleted : 1;
430  /// @}
431 
432  /// \brief The trivial special members which this class has, per
433  /// C++11 [class.ctor]p5, C++11 [class.copy]p12, C++11 [class.copy]p25,
434  /// C++11 [class.dtor]p5, or would have if the member were not suppressed.
435  ///
436  /// This excludes any user-declared but not user-provided special members
437  /// which have been declared but not yet defined.
438  unsigned HasTrivialSpecialMembers : 6;
439 
440  /// \brief The declared special members of this class which are known to be
441  /// non-trivial.
442  ///
443  /// This excludes any user-declared but not user-provided special members
444  /// which have been declared but not yet defined, and any implicit special
445  /// members which have not yet been declared.
446  unsigned DeclaredNonTrivialSpecialMembers : 6;
447 
448  /// \brief True when this class has a destructor with no semantic effect.
449  unsigned HasIrrelevantDestructor : 1;
450 
451  /// \brief True when this class has at least one user-declared constexpr
452  /// constructor which is neither the copy nor move constructor.
453  unsigned HasConstexprNonCopyMoveConstructor : 1;
454 
455  /// \brief True if this class has a (possibly implicit) defaulted default
456  /// constructor.
457  unsigned HasDefaultedDefaultConstructor : 1;
458 
459  /// \brief True if this class can be passed in a non-address-preserving
460  /// fashion (such as in registers) according to the C++ language rules.
461  /// This does not imply anything about how the ABI in use will actually
462  /// pass an object of this class.
463  unsigned CanPassInRegisters : 1;
464 
465  /// \brief True if a defaulted default constructor for this class would
466  /// be constexpr.
467  unsigned DefaultedDefaultConstructorIsConstexpr : 1;
468 
469  /// \brief True if this class has a constexpr default constructor.
470  ///
471  /// This is true for either a user-declared constexpr default constructor
472  /// or an implicitly declared constexpr default constructor.
473  unsigned HasConstexprDefaultConstructor : 1;
474 
475  /// \brief True when this class contains at least one non-static data
476  /// member or base class of non-literal or volatile type.
477  unsigned HasNonLiteralTypeFieldsOrBases : 1;
478 
479  /// \brief True when visible conversion functions are already computed
480  /// and are available.
481  unsigned ComputedVisibleConversions : 1;
482 
483  /// \brief Whether we have a C++11 user-provided default constructor (not
484  /// explicitly deleted or defaulted).
485  unsigned UserProvidedDefaultConstructor : 1;
486 
487  /// \brief The special members which have been declared for this class,
488  /// either by the user or implicitly.
489  unsigned DeclaredSpecialMembers : 6;
490 
491  /// \brief Whether an implicit copy constructor could have a const-qualified
492  /// parameter, for initializing virtual bases and for other subobjects.
493  unsigned ImplicitCopyConstructorCanHaveConstParamForVBase : 1;
494  unsigned ImplicitCopyConstructorCanHaveConstParamForNonVBase : 1;
495 
496  /// \brief Whether an implicit copy assignment operator would have a
497  /// const-qualified parameter.
498  unsigned ImplicitCopyAssignmentHasConstParam : 1;
499 
500  /// \brief Whether any declared copy constructor has a const-qualified
501  /// parameter.
502  unsigned HasDeclaredCopyConstructorWithConstParam : 1;
503 
504  /// \brief Whether any declared copy assignment operator has either a
505  /// const-qualified reference parameter or a non-reference parameter.
506  unsigned HasDeclaredCopyAssignmentWithConstParam : 1;
507 
508  /// \brief Whether this class describes a C++ lambda.
509  unsigned IsLambda : 1;
510 
511  /// \brief Whether we are currently parsing base specifiers.
512  unsigned IsParsingBaseSpecifiers : 1;
513 
514  unsigned HasODRHash : 1;
515 
516  /// \brief A hash of parts of the class to help in ODR checking.
517  unsigned ODRHash = 0;
518 
519  /// \brief The number of base class specifiers in Bases.
520  unsigned NumBases = 0;
521 
522  /// \brief The number of virtual base class specifiers in VBases.
523  unsigned NumVBases = 0;
524 
525  /// \brief Base classes of this class.
526  ///
527  /// FIXME: This is wasted space for a union.
529 
530  /// \brief direct and indirect virtual base classes of this class.
532 
533  /// \brief The conversion functions of this C++ class (but not its
534  /// inherited conversion functions).
535  ///
536  /// Each of the entries in this overload set is a CXXConversionDecl.
537  LazyASTUnresolvedSet Conversions;
538 
539  /// \brief The conversion functions of this C++ class and all those
540  /// inherited conversion functions that are visible in this class.
541  ///
542  /// Each of the entries in this overload set is a CXXConversionDecl or a
543  /// FunctionTemplateDecl.
544  LazyASTUnresolvedSet VisibleConversions;
545 
546  /// \brief The declaration which defines this record.
547  CXXRecordDecl *Definition;
548 
549  /// \brief The first friend declaration in this class, or null if there
550  /// aren't any.
551  ///
552  /// This is actually currently stored in reverse order.
553  LazyDeclPtr FirstFriend;
554 
555  DefinitionData(CXXRecordDecl *D);
556 
557  /// \brief Retrieve the set of direct base classes.
558  CXXBaseSpecifier *getBases() const {
559  if (!Bases.isOffset())
560  return Bases.get(nullptr);
561  return getBasesSlowCase();
562  }
563 
564  /// \brief Retrieve the set of virtual base classes.
565  CXXBaseSpecifier *getVBases() const {
566  if (!VBases.isOffset())
567  return VBases.get(nullptr);
568  return getVBasesSlowCase();
569  }
570 
571  ArrayRef<CXXBaseSpecifier> bases() const {
572  return llvm::makeArrayRef(getBases(), NumBases);
573  }
574 
575  ArrayRef<CXXBaseSpecifier> vbases() const {
576  return llvm::makeArrayRef(getVBases(), NumVBases);
577  }
578 
579  private:
580  CXXBaseSpecifier *getBasesSlowCase() const;
581  CXXBaseSpecifier *getVBasesSlowCase() const;
582  };
583 
584  struct DefinitionData *DefinitionData;
585 
586  /// \brief Describes a C++ closure type (generated by a lambda expression).
587  struct LambdaDefinitionData : public DefinitionData {
588  using Capture = LambdaCapture;
589 
590  /// \brief Whether this lambda is known to be dependent, even if its
591  /// context isn't dependent.
592  ///
593  /// A lambda with a non-dependent context can be dependent if it occurs
594  /// within the default argument of a function template, because the
595  /// lambda will have been created with the enclosing context as its
596  /// declaration context, rather than function. This is an unfortunate
597  /// artifact of having to parse the default arguments before.
598  unsigned Dependent : 1;
599 
600  /// \brief Whether this lambda is a generic lambda.
601  unsigned IsGenericLambda : 1;
602 
603  /// \brief The Default Capture.
604  unsigned CaptureDefault : 2;
605 
606  /// \brief The number of captures in this lambda is limited 2^NumCaptures.
607  unsigned NumCaptures : 15;
608 
609  /// \brief The number of explicit captures in this lambda.
610  unsigned NumExplicitCaptures : 13;
611 
612  /// \brief The number used to indicate this lambda expression for name
613  /// mangling in the Itanium C++ ABI.
614  unsigned ManglingNumber = 0;
615 
616  /// \brief The declaration that provides context for this lambda, if the
617  /// actual DeclContext does not suffice. This is used for lambdas that
618  /// occur within default arguments of function parameters within the class
619  /// or within a data member initializer.
620  LazyDeclPtr ContextDecl;
621 
622  /// \brief The list of captures, both explicit and implicit, for this
623  /// lambda.
624  Capture *Captures = nullptr;
625 
626  /// \brief The type of the call method.
627  TypeSourceInfo *MethodTyInfo;
628 
629  LambdaDefinitionData(CXXRecordDecl *D, TypeSourceInfo *Info,
630  bool Dependent, bool IsGeneric,
631  LambdaCaptureDefault CaptureDefault)
632  : DefinitionData(D), Dependent(Dependent), IsGenericLambda(IsGeneric),
633  CaptureDefault(CaptureDefault), NumCaptures(0), NumExplicitCaptures(0),
634  MethodTyInfo(Info) {
635  IsLambda = true;
636 
637  // C++1z [expr.prim.lambda]p4:
638  // This class type is not an aggregate type.
639  Aggregate = false;
640  PlainOldData = false;
641  }
642  };
643 
644  struct DefinitionData *dataPtr() const {
645  // Complete the redecl chain (if necessary).
646  getMostRecentDecl();
647  return DefinitionData;
648  }
649 
650  struct DefinitionData &data() const {
651  auto *DD = dataPtr();
652  assert(DD && "queried property of class with no definition");
653  return *DD;
654  }
655 
656  struct LambdaDefinitionData &getLambdaData() const {
657  // No update required: a merged definition cannot change any lambda
658  // properties.
659  auto *DD = DefinitionData;
660  assert(DD && DD->IsLambda && "queried lambda property of non-lambda class");
661  return static_cast<LambdaDefinitionData&>(*DD);
662  }
663 
664  /// \brief The template or declaration that this declaration
665  /// describes or was instantiated from, respectively.
666  ///
667  /// For non-templates, this value will be null. For record
668  /// declarations that describe a class template, this will be a
669  /// pointer to a ClassTemplateDecl. For member
670  /// classes of class template specializations, this will be the
671  /// MemberSpecializationInfo referring to the member class that was
672  /// instantiated or specialized.
673  llvm::PointerUnion<ClassTemplateDecl *, MemberSpecializationInfo *>
674  TemplateOrInstantiation;
675 
676  /// \brief Called from setBases and addedMember to notify the class that a
677  /// direct or virtual base class or a member of class type has been added.
678  void addedClassSubobject(CXXRecordDecl *Base);
679 
680  /// \brief Notify the class that member has been added.
681  ///
682  /// This routine helps maintain information about the class based on which
683  /// members have been added. It will be invoked by DeclContext::addDecl()
684  /// whenever a member is added to this record.
685  void addedMember(Decl *D);
686 
687  void markedVirtualFunctionPure();
688 
689  /// \brief Get the head of our list of friend declarations, possibly
690  /// deserializing the friends from an external AST source.
691  FriendDecl *getFirstFriend() const;
692 
693 protected:
694  CXXRecordDecl(Kind K, TagKind TK, const ASTContext &C, DeclContext *DC,
695  SourceLocation StartLoc, SourceLocation IdLoc,
696  IdentifierInfo *Id, CXXRecordDecl *PrevDecl);
697 
698 public:
699  /// \brief Iterator that traverses the base classes of a class.
701 
702  /// \brief Iterator that traverses the base classes of a class.
704 
706  return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl());
707  }
708 
710  return const_cast<CXXRecordDecl*>(this)->getCanonicalDecl();
711  }
712 
714  return cast_or_null<CXXRecordDecl>(
715  static_cast<RecordDecl *>(this)->getPreviousDecl());
716  }
717 
719  return const_cast<CXXRecordDecl*>(this)->getPreviousDecl();
720  }
721 
723  return cast<CXXRecordDecl>(
724  static_cast<RecordDecl *>(this)->getMostRecentDecl());
725  }
726 
728  return const_cast<CXXRecordDecl*>(this)->getMostRecentDecl();
729  }
730 
732  // We only need an update if we don't already know which
733  // declaration is the definition.
734  auto *DD = DefinitionData ? DefinitionData : dataPtr();
735  return DD ? DD->Definition : nullptr;
736  }
737 
738  bool hasDefinition() const { return DefinitionData || dataPtr(); }
739 
740  static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC,
741  SourceLocation StartLoc, SourceLocation IdLoc,
743  CXXRecordDecl *PrevDecl = nullptr,
744  bool DelayTypeCreation = false);
745  static CXXRecordDecl *CreateLambda(const ASTContext &C, DeclContext *DC,
746  TypeSourceInfo *Info, SourceLocation Loc,
747  bool DependentLambda, bool IsGeneric,
748  LambdaCaptureDefault CaptureDefault);
749  static CXXRecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID);
750 
751  bool isDynamicClass() const {
752  return data().Polymorphic || data().NumVBases != 0;
753  }
754 
755  void setIsParsingBaseSpecifiers() { data().IsParsingBaseSpecifiers = true; }
756 
757  bool isParsingBaseSpecifiers() const {
758  return data().IsParsingBaseSpecifiers;
759  }
760 
761  unsigned getODRHash() const;
762 
763  /// \brief Sets the base classes of this struct or class.
764  void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases);
765 
766  /// \brief Retrieves the number of base classes of this class.
767  unsigned getNumBases() const { return data().NumBases; }
768 
769  using base_class_range = llvm::iterator_range<base_class_iterator>;
770  using base_class_const_range =
771  llvm::iterator_range<base_class_const_iterator>;
772 
774  return base_class_range(bases_begin(), bases_end());
775  }
777  return base_class_const_range(bases_begin(), bases_end());
778  }
779 
780  base_class_iterator bases_begin() { return data().getBases(); }
781  base_class_const_iterator bases_begin() const { return data().getBases(); }
782  base_class_iterator bases_end() { return bases_begin() + data().NumBases; }
784  return bases_begin() + data().NumBases;
785  }
786 
787  /// \brief Retrieves the number of virtual base classes of this class.
788  unsigned getNumVBases() const { return data().NumVBases; }
789 
791  return base_class_range(vbases_begin(), vbases_end());
792  }
794  return base_class_const_range(vbases_begin(), vbases_end());
795  }
796 
797  base_class_iterator vbases_begin() { return data().getVBases(); }
798  base_class_const_iterator vbases_begin() const { return data().getVBases(); }
799  base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; }
801  return vbases_begin() + data().NumVBases;
802  }
803 
804  /// \brief Determine whether this class has any dependent base classes which
805  /// are not the current instantiation.
806  bool hasAnyDependentBases() const;
807 
808  /// Iterator access to method members. The method iterator visits
809  /// all method members of the class, including non-instance methods,
810  /// special methods, etc.
812  using method_range =
813  llvm::iterator_range<specific_decl_iterator<CXXMethodDecl>>;
814 
816  return method_range(method_begin(), method_end());
817  }
818 
819  /// \brief Method begin iterator. Iterates in the order the methods
820  /// were declared.
822  return method_iterator(decls_begin());
823  }
824 
825  /// \brief Method past-the-end iterator.
827  return method_iterator(decls_end());
828  }
829 
830  /// Iterator access to constructor members.
832  using ctor_range =
833  llvm::iterator_range<specific_decl_iterator<CXXConstructorDecl>>;
834 
835  ctor_range ctors() const { return ctor_range(ctor_begin(), ctor_end()); }
836 
838  return ctor_iterator(decls_begin());
839  }
840 
842  return ctor_iterator(decls_end());
843  }
844 
845  /// An iterator over friend declarations. All of these are defined
846  /// in DeclFriend.h.
847  class friend_iterator;
848  using friend_range = llvm::iterator_range<friend_iterator>;
849 
850  friend_range friends() const;
851  friend_iterator friend_begin() const;
852  friend_iterator friend_end() const;
853  void pushFriendDecl(FriendDecl *FD);
854 
855  /// Determines whether this record has any friends.
856  bool hasFriends() const {
857  return data().FirstFriend.isValid();
858  }
859 
860  /// \brief \c true if a defaulted copy constructor for this class would be
861  /// deleted.
863  assert((!needsOverloadResolutionForCopyConstructor() ||
864  (data().DeclaredSpecialMembers & SMF_CopyConstructor)) &&
865  "this property has not yet been computed by Sema");
866  return data().DefaultedCopyConstructorIsDeleted;
867  }
868 
869  /// \brief \c true if a defaulted move constructor for this class would be
870  /// deleted.
872  assert((!needsOverloadResolutionForMoveConstructor() ||
873  (data().DeclaredSpecialMembers & SMF_MoveConstructor)) &&
874  "this property has not yet been computed by Sema");
875  return data().DefaultedMoveConstructorIsDeleted;
876  }
877 
878  /// \brief \c true if a defaulted destructor for this class would be deleted.
880  assert((!needsOverloadResolutionForDestructor() ||
881  (data().DeclaredSpecialMembers & SMF_Destructor)) &&
882  "this property has not yet been computed by Sema");
883  return data().DefaultedDestructorIsDeleted;
884  }
885 
886  /// \brief \c true if we know for sure that this class has a single,
887  /// accessible, unambiguous copy constructor that is not deleted.
889  return !hasUserDeclaredCopyConstructor() &&
890  !data().DefaultedCopyConstructorIsDeleted;
891  }
892 
893  /// \brief \c true if we know for sure that this class has a single,
894  /// accessible, unambiguous move constructor that is not deleted.
896  return !hasUserDeclaredMoveConstructor() && hasMoveConstructor() &&
897  !data().DefaultedMoveConstructorIsDeleted;
898  }
899 
900  /// \brief \c true if we know for sure that this class has a single,
901  /// accessible, unambiguous move assignment operator that is not deleted.
902  bool hasSimpleMoveAssignment() const {
903  return !hasUserDeclaredMoveAssignment() && hasMoveAssignment() &&
904  !data().DefaultedMoveAssignmentIsDeleted;
905  }
906 
907  /// \brief \c true if we know for sure that this class has an accessible
908  /// destructor that is not deleted.
909  bool hasSimpleDestructor() const {
910  return !hasUserDeclaredDestructor() &&
911  !data().DefaultedDestructorIsDeleted;
912  }
913 
914  /// \brief Determine whether this class has any default constructors.
915  bool hasDefaultConstructor() const {
916  return (data().DeclaredSpecialMembers & SMF_DefaultConstructor) ||
917  needsImplicitDefaultConstructor();
918  }
919 
920  /// \brief Determine if we need to declare a default constructor for
921  /// this class.
922  ///
923  /// This value is used for lazy creation of default constructors.
925  return !data().UserDeclaredConstructor &&
926  !(data().DeclaredSpecialMembers & SMF_DefaultConstructor) &&
927  // C++14 [expr.prim.lambda]p20:
928  // The closure type associated with a lambda-expression has no
929  // default constructor.
930  !isLambda();
931  }
932 
933  /// \brief Determine whether this class has any user-declared constructors.
934  ///
935  /// When true, a default constructor will not be implicitly declared.
937  return data().UserDeclaredConstructor;
938  }
939 
940  /// \brief Whether this class has a user-provided default constructor
941  /// per C++11.
943  return data().UserProvidedDefaultConstructor;
944  }
945 
946  /// \brief Determine whether this class has a user-declared copy constructor.
947  ///
948  /// When false, a copy constructor will be implicitly declared.
950  return data().UserDeclaredSpecialMembers & SMF_CopyConstructor;
951  }
952 
953  /// \brief Determine whether this class needs an implicit copy
954  /// constructor to be lazily declared.
956  return !(data().DeclaredSpecialMembers & SMF_CopyConstructor);
957  }
958 
959  /// \brief Determine whether we need to eagerly declare a defaulted copy
960  /// constructor for this class.
962  // C++17 [class.copy.ctor]p6:
963  // If the class definition declares a move constructor or move assignment
964  // operator, the implicitly declared copy constructor is defined as
965  // deleted.
966  // In MSVC mode, sometimes a declared move assignment does not delete an
967  // implicit copy constructor, so defer this choice to Sema.
968  if (data().UserDeclaredSpecialMembers &
969  (SMF_MoveConstructor | SMF_MoveAssignment))
970  return true;
971  return data().NeedOverloadResolutionForCopyConstructor;
972  }
973 
974  /// \brief Determine whether an implicit copy constructor for this type
975  /// would have a parameter with a const-qualified reference type.
977  return data().ImplicitCopyConstructorCanHaveConstParamForNonVBase &&
978  (isAbstract() ||
979  data().ImplicitCopyConstructorCanHaveConstParamForVBase);
980  }
981 
982  /// \brief Determine whether this class has a copy constructor with
983  /// a parameter type which is a reference to a const-qualified type.
985  return data().HasDeclaredCopyConstructorWithConstParam ||
986  (needsImplicitCopyConstructor() &&
987  implicitCopyConstructorHasConstParam());
988  }
989 
990  /// \brief Whether this class has a user-declared move constructor or
991  /// assignment operator.
992  ///
993  /// When false, a move constructor and assignment operator may be
994  /// implicitly declared.
996  return data().UserDeclaredSpecialMembers &
997  (SMF_MoveConstructor | SMF_MoveAssignment);
998  }
999 
1000  /// \brief Determine whether this class has had a move constructor
1001  /// declared by the user.
1003  return data().UserDeclaredSpecialMembers & SMF_MoveConstructor;
1004  }
1005 
1006  /// \brief Determine whether this class has a move constructor.
1007  bool hasMoveConstructor() const {
1008  return (data().DeclaredSpecialMembers & SMF_MoveConstructor) ||
1009  needsImplicitMoveConstructor();
1010  }
1011 
1012  /// \brief Set that we attempted to declare an implicit copy
1013  /// constructor, but overload resolution failed so we deleted it.
1015  assert((data().DefaultedCopyConstructorIsDeleted ||
1016  needsOverloadResolutionForCopyConstructor()) &&
1017  "Copy constructor should not be deleted");
1018  data().DefaultedCopyConstructorIsDeleted = true;
1019  }
1020 
1021  /// \brief Set that we attempted to declare an implicit move
1022  /// constructor, but overload resolution failed so we deleted it.
1024  assert((data().DefaultedMoveConstructorIsDeleted ||
1025  needsOverloadResolutionForMoveConstructor()) &&
1026  "move constructor should not be deleted");
1027  data().DefaultedMoveConstructorIsDeleted = true;
1028  }
1029 
1030  /// \brief Set that we attempted to declare an implicit destructor,
1031  /// but overload resolution failed so we deleted it.
1033  assert((data().DefaultedDestructorIsDeleted ||
1034  needsOverloadResolutionForDestructor()) &&
1035  "destructor should not be deleted");
1036  data().DefaultedDestructorIsDeleted = true;
1037  }
1038 
1039  /// \brief Determine whether this class should get an implicit move
1040  /// constructor or if any existing special member function inhibits this.
1042  return !(data().DeclaredSpecialMembers & SMF_MoveConstructor) &&
1043  !hasUserDeclaredCopyConstructor() &&
1044  !hasUserDeclaredCopyAssignment() &&
1045  !hasUserDeclaredMoveAssignment() &&
1046  !hasUserDeclaredDestructor();
1047  }
1048 
1049  /// \brief Determine whether we need to eagerly declare a defaulted move
1050  /// constructor for this class.
1052  return data().NeedOverloadResolutionForMoveConstructor;
1053  }
1054 
1055  /// \brief Determine whether this class has a user-declared copy assignment
1056  /// operator.
1057  ///
1058  /// When false, a copy assigment operator will be implicitly declared.
1060  return data().UserDeclaredSpecialMembers & SMF_CopyAssignment;
1061  }
1062 
1063  /// \brief Determine whether this class needs an implicit copy
1064  /// assignment operator to be lazily declared.
1066  return !(data().DeclaredSpecialMembers & SMF_CopyAssignment);
1067  }
1068 
1069  /// \brief Determine whether we need to eagerly declare a defaulted copy
1070  /// assignment operator for this class.
1072  return data().HasMutableFields;
1073  }
1074 
1075  /// \brief Determine whether an implicit copy assignment operator for this
1076  /// type would have a parameter with a const-qualified reference type.
1078  return data().ImplicitCopyAssignmentHasConstParam;
1079  }
1080 
1081  /// \brief Determine whether this class has a copy assignment operator with
1082  /// a parameter type which is a reference to a const-qualified type or is not
1083  /// a reference.
1085  return data().HasDeclaredCopyAssignmentWithConstParam ||
1086  (needsImplicitCopyAssignment() &&
1087  implicitCopyAssignmentHasConstParam());
1088  }
1089 
1090  /// \brief Determine whether this class has had a move assignment
1091  /// declared by the user.
1093  return data().UserDeclaredSpecialMembers & SMF_MoveAssignment;
1094  }
1095 
1096  /// \brief Determine whether this class has a move assignment operator.
1097  bool hasMoveAssignment() const {
1098  return (data().DeclaredSpecialMembers & SMF_MoveAssignment) ||
1099  needsImplicitMoveAssignment();
1100  }
1101 
1102  /// \brief Set that we attempted to declare an implicit move assignment
1103  /// operator, but overload resolution failed so we deleted it.
1105  assert((data().DefaultedMoveAssignmentIsDeleted ||
1106  needsOverloadResolutionForMoveAssignment()) &&
1107  "move assignment should not be deleted");
1108  data().DefaultedMoveAssignmentIsDeleted = true;
1109  }
1110 
1111  /// \brief Determine whether this class should get an implicit move
1112  /// assignment operator or if any existing special member function inhibits
1113  /// this.
1115  return !(data().DeclaredSpecialMembers & SMF_MoveAssignment) &&
1116  !hasUserDeclaredCopyConstructor() &&
1117  !hasUserDeclaredCopyAssignment() &&
1118  !hasUserDeclaredMoveConstructor() &&
1119  !hasUserDeclaredDestructor() &&
1120  // C++1z [expr.prim.lambda]p21: "the closure type has a deleted copy
1121  // assignment operator". The intent is that this counts as a user
1122  // declared copy assignment, but we do not model it that way.
1123  !isLambda();
1124  }
1125 
1126  /// \brief Determine whether we need to eagerly declare a move assignment
1127  /// operator for this class.
1129  return data().NeedOverloadResolutionForMoveAssignment;
1130  }
1131 
1132  /// \brief Determine whether this class has a user-declared destructor.
1133  ///
1134  /// When false, a destructor will be implicitly declared.
1136  return data().UserDeclaredSpecialMembers & SMF_Destructor;
1137  }
1138 
1139  /// \brief Determine whether this class needs an implicit destructor to
1140  /// be lazily declared.
1142  return !(data().DeclaredSpecialMembers & SMF_Destructor);
1143  }
1144 
1145  /// \brief Determine whether we need to eagerly declare a destructor for this
1146  /// class.
1148  return data().NeedOverloadResolutionForDestructor;
1149  }
1150 
1151  /// \brief Determine whether this class describes a lambda function object.
1152  bool isLambda() const {
1153  // An update record can't turn a non-lambda into a lambda.
1154  auto *DD = DefinitionData;
1155  return DD && DD->IsLambda;
1156  }
1157 
1158  /// \brief Determine whether this class describes a generic
1159  /// lambda function object (i.e. function call operator is
1160  /// a template).
1161  bool isGenericLambda() const;
1162 
1163  /// \brief Retrieve the lambda call operator of the closure type
1164  /// if this is a closure type.
1165  CXXMethodDecl *getLambdaCallOperator() const;
1166 
1167  /// \brief Retrieve the lambda static invoker, the address of which
1168  /// is returned by the conversion operator, and the body of which
1169  /// is forwarded to the lambda call operator.
1170  CXXMethodDecl *getLambdaStaticInvoker() const;
1171 
1172  /// \brief Retrieve the generic lambda's template parameter list.
1173  /// Returns null if the class does not represent a lambda or a generic
1174  /// lambda.
1176 
1178  assert(isLambda());
1179  return static_cast<LambdaCaptureDefault>(getLambdaData().CaptureDefault);
1180  }
1181 
1182  /// \brief For a closure type, retrieve the mapping from captured
1183  /// variables and \c this to the non-static data members that store the
1184  /// values or references of the captures.
1185  ///
1186  /// \param Captures Will be populated with the mapping from captured
1187  /// variables to the corresponding fields.
1188  ///
1189  /// \param ThisCapture Will be set to the field declaration for the
1190  /// \c this capture.
1191  ///
1192  /// \note No entries will be added for init-captures, as they do not capture
1193  /// variables.
1194  void getCaptureFields(llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures,
1195  FieldDecl *&ThisCapture) const;
1196 
1198  using capture_const_range = llvm::iterator_range<capture_const_iterator>;
1199 
1201  return capture_const_range(captures_begin(), captures_end());
1202  }
1203 
1205  return isLambda() ? getLambdaData().Captures : nullptr;
1206  }
1207 
1209  return isLambda() ? captures_begin() + getLambdaData().NumCaptures
1210  : nullptr;
1211  }
1212 
1214 
1216  return data().Conversions.get(getASTContext()).begin();
1217  }
1218 
1220  return data().Conversions.get(getASTContext()).end();
1221  }
1222 
1223  /// Removes a conversion function from this class. The conversion
1224  /// function must currently be a member of this class. Furthermore,
1225  /// this class must currently be in the process of being defined.
1226  void removeConversion(const NamedDecl *Old);
1227 
1228  /// \brief Get all conversion functions visible in current class,
1229  /// including conversion function templates.
1230  llvm::iterator_range<conversion_iterator> getVisibleConversionFunctions();
1231 
1232  /// Determine whether this class is an aggregate (C++ [dcl.init.aggr]),
1233  /// which is a class with no user-declared constructors, no private
1234  /// or protected non-static data members, no base classes, and no virtual
1235  /// functions (C++ [dcl.init.aggr]p1).
1236  bool isAggregate() const { return data().Aggregate; }
1237 
1238  /// \brief Whether this class has any in-class initializers
1239  /// for non-static data members (including those in anonymous unions or
1240  /// structs).
1241  bool hasInClassInitializer() const { return data().HasInClassInitializer; }
1242 
1243  /// \brief Whether this class or any of its subobjects has any members of
1244  /// reference type which would make value-initialization ill-formed.
1245  ///
1246  /// Per C++03 [dcl.init]p5:
1247  /// - if T is a non-union class type without a user-declared constructor,
1248  /// then every non-static data member and base-class component of T is
1249  /// value-initialized [...] A program that calls for [...]
1250  /// value-initialization of an entity of reference type is ill-formed.
1252  return !isUnion() && !hasUserDeclaredConstructor() &&
1253  data().HasUninitializedReferenceMember;
1254  }
1255 
1256  /// \brief Whether this class is a POD-type (C++ [class]p4)
1257  ///
1258  /// For purposes of this function a class is POD if it is an aggregate
1259  /// that has no non-static non-POD data members, no reference data
1260  /// members, no user-defined copy assignment operator and no
1261  /// user-defined destructor.
1262  ///
1263  /// Note that this is the C++ TR1 definition of POD.
1264  bool isPOD() const { return data().PlainOldData; }
1265 
1266  /// \brief True if this class is C-like, without C++-specific features, e.g.
1267  /// it contains only public fields, no bases, tag kind is not 'class', etc.
1268  bool isCLike() const;
1269 
1270  /// \brief Determine whether this is an empty class in the sense of
1271  /// (C++11 [meta.unary.prop]).
1272  ///
1273  /// The CXXRecordDecl is a class type, but not a union type,
1274  /// with no non-static data members other than bit-fields of length 0,
1275  /// no virtual member functions, no virtual base classes,
1276  /// and no base class B for which is_empty<B>::value is false.
1277  ///
1278  /// \note This does NOT include a check for union-ness.
1279  bool isEmpty() const { return data().Empty; }
1280 
1281  /// \brief Determine whether this class has direct non-static data members.
1282  bool hasDirectFields() const {
1283  auto &D = data();
1284  return D.HasPublicFields || D.HasProtectedFields || D.HasPrivateFields;
1285  }
1286 
1287  /// Whether this class is polymorphic (C++ [class.virtual]),
1288  /// which means that the class contains or inherits a virtual function.
1289  bool isPolymorphic() const { return data().Polymorphic; }
1290 
1291  /// \brief Determine whether this class has a pure virtual function.
1292  ///
1293  /// The class is is abstract per (C++ [class.abstract]p2) if it declares
1294  /// a pure virtual function or inherits a pure virtual function that is
1295  /// not overridden.
1296  bool isAbstract() const { return data().Abstract; }
1297 
1298  /// \brief Determine whether this class has standard layout per
1299  /// (C++ [class]p7)
1300  bool isStandardLayout() const { return data().IsStandardLayout; }
1301 
1302  /// \brief Determine whether this class, or any of its class subobjects,
1303  /// contains a mutable field.
1304  bool hasMutableFields() const { return data().HasMutableFields; }
1305 
1306  /// \brief Determine whether this class has any variant members.
1307  bool hasVariantMembers() const { return data().HasVariantMembers; }
1308 
1309  /// \brief Determine whether this class has a trivial default constructor
1310  /// (C++11 [class.ctor]p5).
1312  return hasDefaultConstructor() &&
1313  (data().HasTrivialSpecialMembers & SMF_DefaultConstructor);
1314  }
1315 
1316  /// \brief Determine whether this class has a non-trivial default constructor
1317  /// (C++11 [class.ctor]p5).
1319  return (data().DeclaredNonTrivialSpecialMembers & SMF_DefaultConstructor) ||
1320  (needsImplicitDefaultConstructor() &&
1321  !(data().HasTrivialSpecialMembers & SMF_DefaultConstructor));
1322  }
1323 
1324  /// \brief Determine whether this class has at least one constexpr constructor
1325  /// other than the copy or move constructors.
1327  return data().HasConstexprNonCopyMoveConstructor ||
1328  (needsImplicitDefaultConstructor() &&
1329  defaultedDefaultConstructorIsConstexpr());
1330  }
1331 
1332  /// \brief Determine whether a defaulted default constructor for this class
1333  /// would be constexpr.
1335  return data().DefaultedDefaultConstructorIsConstexpr &&
1336  (!isUnion() || hasInClassInitializer() || !hasVariantMembers());
1337  }
1338 
1339  /// \brief Determine whether this class has a constexpr default constructor.
1341  return data().HasConstexprDefaultConstructor ||
1342  (needsImplicitDefaultConstructor() &&
1343  defaultedDefaultConstructorIsConstexpr());
1344  }
1345 
1346  /// \brief Determine whether this class has a trivial copy constructor
1347  /// (C++ [class.copy]p6, C++11 [class.copy]p12)
1349  return data().HasTrivialSpecialMembers & SMF_CopyConstructor;
1350  }
1351 
1352  /// \brief Determine whether this class has a non-trivial copy constructor
1353  /// (C++ [class.copy]p6, C++11 [class.copy]p12)
1355  return data().DeclaredNonTrivialSpecialMembers & SMF_CopyConstructor ||
1356  !hasTrivialCopyConstructor();
1357  }
1358 
1359  /// \brief Determine whether this class has a trivial move constructor
1360  /// (C++11 [class.copy]p12)
1362  return hasMoveConstructor() &&
1363  (data().HasTrivialSpecialMembers & SMF_MoveConstructor);
1364  }
1365 
1366  /// \brief Determine whether this class has a non-trivial move constructor
1367  /// (C++11 [class.copy]p12)
1369  return (data().DeclaredNonTrivialSpecialMembers & SMF_MoveConstructor) ||
1370  (needsImplicitMoveConstructor() &&
1371  !(data().HasTrivialSpecialMembers & SMF_MoveConstructor));
1372  }
1373 
1374  /// \brief Determine whether this class has a trivial copy assignment operator
1375  /// (C++ [class.copy]p11, C++11 [class.copy]p25)
1377  return data().HasTrivialSpecialMembers & SMF_CopyAssignment;
1378  }
1379 
1380  /// \brief Determine whether this class has a non-trivial copy assignment
1381  /// operator (C++ [class.copy]p11, C++11 [class.copy]p25)
1383  return data().DeclaredNonTrivialSpecialMembers & SMF_CopyAssignment ||
1384  !hasTrivialCopyAssignment();
1385  }
1386 
1387  /// \brief Determine whether this class has a trivial move assignment operator
1388  /// (C++11 [class.copy]p25)
1390  return hasMoveAssignment() &&
1391  (data().HasTrivialSpecialMembers & SMF_MoveAssignment);
1392  }
1393 
1394  /// \brief Determine whether this class has a non-trivial move assignment
1395  /// operator (C++11 [class.copy]p25)
1397  return (data().DeclaredNonTrivialSpecialMembers & SMF_MoveAssignment) ||
1398  (needsImplicitMoveAssignment() &&
1399  !(data().HasTrivialSpecialMembers & SMF_MoveAssignment));
1400  }
1401 
1402  /// \brief Determine whether this class has a trivial destructor
1403  /// (C++ [class.dtor]p3)
1404  bool hasTrivialDestructor() const {
1405  return data().HasTrivialSpecialMembers & SMF_Destructor;
1406  }
1407 
1408  /// \brief Determine whether this class has a non-trivial destructor
1409  /// (C++ [class.dtor]p3)
1411  return !(data().HasTrivialSpecialMembers & SMF_Destructor);
1412  }
1413 
1414  /// \brief Determine whether declaring a const variable with this type is ok
1415  /// per core issue 253.
1416  bool allowConstDefaultInit() const {
1417  return !data().HasUninitializedFields ||
1418  !(data().HasDefaultedDefaultConstructor ||
1419  needsImplicitDefaultConstructor());
1420  }
1421 
1422  /// \brief Determine whether this class has a destructor which has no
1423  /// semantic effect.
1424  ///
1425  /// Any such destructor will be trivial, public, defaulted and not deleted,
1426  /// and will call only irrelevant destructors.
1428  return data().HasIrrelevantDestructor;
1429  }
1430 
1431  /// \brief Determine whether this class has at least one trivial, non-deleted
1432  /// copy or move constructor.
1433  bool canPassInRegisters() const {
1434  return data().CanPassInRegisters;
1435  }
1436 
1437  /// \brief Set that we can pass this RecordDecl in registers.
1438  // FIXME: This should be set as part of completeDefinition.
1439  void setCanPassInRegisters(bool CanPass) {
1440  data().CanPassInRegisters = CanPass;
1441  }
1442 
1443  /// \brief Determine whether this class has a non-literal or/ volatile type
1444  /// non-static data member or base class.
1446  return data().HasNonLiteralTypeFieldsOrBases;
1447  }
1448 
1449  /// \brief Determine whether this class has a using-declaration that names
1450  /// a user-declared base class constructor.
1452  return data().HasInheritedConstructor;
1453  }
1454 
1455  /// \brief Determine whether this class has a using-declaration that names
1456  /// a base class assignment operator.
1457  bool hasInheritedAssignment() const {
1458  return data().HasInheritedAssignment;
1459  }
1460 
1461  /// \brief Determine whether this class is considered trivially copyable per
1462  /// (C++11 [class]p6).
1463  bool isTriviallyCopyable() const;
1464 
1465  /// \brief Determine whether this class is considered trivial.
1466  ///
1467  /// C++11 [class]p6:
1468  /// "A trivial class is a class that has a trivial default constructor and
1469  /// is trivially copiable."
1470  bool isTrivial() const {
1471  return isTriviallyCopyable() && hasTrivialDefaultConstructor();
1472  }
1473 
1474  /// \brief Determine whether this class is a literal type.
1475  ///
1476  /// C++11 [basic.types]p10:
1477  /// A class type that has all the following properties:
1478  /// - it has a trivial destructor
1479  /// - every constructor call and full-expression in the
1480  /// brace-or-equal-intializers for non-static data members (if any) is
1481  /// a constant expression.
1482  /// - it is an aggregate type or has at least one constexpr constructor
1483  /// or constructor template that is not a copy or move constructor, and
1484  /// - all of its non-static data members and base classes are of literal
1485  /// types
1486  ///
1487  /// We resolve DR1361 by ignoring the second bullet. We resolve DR1452 by
1488  /// treating types with trivial default constructors as literal types.
1489  ///
1490  /// Only in C++1z and beyond, are lambdas literal types.
1491  bool isLiteral() const {
1492  return hasTrivialDestructor() &&
1493  (!isLambda() || getASTContext().getLangOpts().CPlusPlus1z) &&
1494  !hasNonLiteralTypeFieldsOrBases() &&
1495  (isAggregate() || isLambda() ||
1496  hasConstexprNonCopyMoveConstructor() ||
1497  hasTrivialDefaultConstructor());
1498  }
1499 
1500  /// \brief If this record is an instantiation of a member class,
1501  /// retrieves the member class from which it was instantiated.
1502  ///
1503  /// This routine will return non-null for (non-templated) member
1504  /// classes of class templates. For example, given:
1505  ///
1506  /// \code
1507  /// template<typename T>
1508  /// struct X {
1509  /// struct A { };
1510  /// };
1511  /// \endcode
1512  ///
1513  /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl
1514  /// whose parent is the class template specialization X<int>. For
1515  /// this declaration, getInstantiatedFromMemberClass() will return
1516  /// the CXXRecordDecl X<T>::A. When a complete definition of
1517  /// X<int>::A is required, it will be instantiated from the
1518  /// declaration returned by getInstantiatedFromMemberClass().
1519  CXXRecordDecl *getInstantiatedFromMemberClass() const;
1520 
1521  /// \brief If this class is an instantiation of a member class of a
1522  /// class template specialization, retrieves the member specialization
1523  /// information.
1524  MemberSpecializationInfo *getMemberSpecializationInfo() const;
1525 
1526  /// \brief Specify that this record is an instantiation of the
1527  /// member class \p RD.
1528  void setInstantiationOfMemberClass(CXXRecordDecl *RD,
1530 
1531  /// \brief Retrieves the class template that is described by this
1532  /// class declaration.
1533  ///
1534  /// Every class template is represented as a ClassTemplateDecl and a
1535  /// CXXRecordDecl. The former contains template properties (such as
1536  /// the template parameter lists) while the latter contains the
1537  /// actual description of the template's
1538  /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the
1539  /// CXXRecordDecl that from a ClassTemplateDecl, while
1540  /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from
1541  /// a CXXRecordDecl.
1542  ClassTemplateDecl *getDescribedClassTemplate() const;
1543 
1544  void setDescribedClassTemplate(ClassTemplateDecl *Template);
1545 
1546  /// \brief Determine whether this particular class is a specialization or
1547  /// instantiation of a class template or member class of a class template,
1548  /// and how it was instantiated or specialized.
1550 
1551  /// \brief Set the kind of specialization or template instantiation this is.
1552  void setTemplateSpecializationKind(TemplateSpecializationKind TSK);
1553 
1554  /// \brief Retrieve the record declaration from which this record could be
1555  /// instantiated. Returns null if this class is not a template instantiation.
1556  const CXXRecordDecl *getTemplateInstantiationPattern() const;
1557 
1559  return const_cast<CXXRecordDecl *>(const_cast<const CXXRecordDecl *>(this)
1560  ->getTemplateInstantiationPattern());
1561  }
1562 
1563  /// \brief Returns the destructor decl for this class.
1564  CXXDestructorDecl *getDestructor() const;
1565 
1566  /// \brief Returns true if the class destructor, or any implicitly invoked
1567  /// destructors are marked noreturn.
1568  bool isAnyDestructorNoReturn() const;
1569 
1570  /// \brief If the class is a local class [class.local], returns
1571  /// the enclosing function declaration.
1572  const FunctionDecl *isLocalClass() const {
1573  if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext()))
1574  return RD->isLocalClass();
1575 
1576  return dyn_cast<FunctionDecl>(getDeclContext());
1577  }
1578 
1580  return const_cast<FunctionDecl*>(
1581  const_cast<const CXXRecordDecl*>(this)->isLocalClass());
1582  }
1583 
1584  /// \brief Determine whether this dependent class is a current instantiation,
1585  /// when viewed from within the given context.
1586  bool isCurrentInstantiation(const DeclContext *CurContext) const;
1587 
1588  /// \brief Determine whether this class is derived from the class \p Base.
1589  ///
1590  /// This routine only determines whether this class is derived from \p Base,
1591  /// but does not account for factors that may make a Derived -> Base class
1592  /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1593  /// base class subobjects.
1594  ///
1595  /// \param Base the base class we are searching for.
1596  ///
1597  /// \returns true if this class is derived from Base, false otherwise.
1598  bool isDerivedFrom(const CXXRecordDecl *Base) const;
1599 
1600  /// \brief Determine whether this class is derived from the type \p Base.
1601  ///
1602  /// This routine only determines whether this class is derived from \p Base,
1603  /// but does not account for factors that may make a Derived -> Base class
1604  /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1605  /// base class subobjects.
1606  ///
1607  /// \param Base the base class we are searching for.
1608  ///
1609  /// \param Paths will contain the paths taken from the current class to the
1610  /// given \p Base class.
1611  ///
1612  /// \returns true if this class is derived from \p Base, false otherwise.
1613  ///
1614  /// \todo add a separate parameter to configure IsDerivedFrom, rather than
1615  /// tangling input and output in \p Paths
1616  bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const;
1617 
1618  /// \brief Determine whether this class is virtually derived from
1619  /// the class \p Base.
1620  ///
1621  /// This routine only determines whether this class is virtually
1622  /// derived from \p Base, but does not account for factors that may
1623  /// make a Derived -> Base class ill-formed, such as
1624  /// private/protected inheritance or multiple, ambiguous base class
1625  /// subobjects.
1626  ///
1627  /// \param Base the base class we are searching for.
1628  ///
1629  /// \returns true if this class is virtually derived from Base,
1630  /// false otherwise.
1631  bool isVirtuallyDerivedFrom(const CXXRecordDecl *Base) const;
1632 
1633  /// \brief Determine whether this class is provably not derived from
1634  /// the type \p Base.
1635  bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const;
1636 
1637  /// \brief Function type used by forallBases() as a callback.
1638  ///
1639  /// \param BaseDefinition the definition of the base class
1640  ///
1641  /// \returns true if this base matched the search criteria
1642  using ForallBasesCallback =
1643  llvm::function_ref<bool(const CXXRecordDecl *BaseDefinition)>;
1644 
1645  /// \brief Determines if the given callback holds for all the direct
1646  /// or indirect base classes of this type.
1647  ///
1648  /// The class itself does not count as a base class. This routine
1649  /// returns false if the class has non-computable base classes.
1650  ///
1651  /// \param BaseMatches Callback invoked for each (direct or indirect) base
1652  /// class of this type, or if \p AllowShortCircuit is true then until a call
1653  /// returns false.
1654  ///
1655  /// \param AllowShortCircuit if false, forces the callback to be called
1656  /// for every base class, even if a dependent or non-matching base was
1657  /// found.
1658  bool forallBases(ForallBasesCallback BaseMatches,
1659  bool AllowShortCircuit = true) const;
1660 
1661  /// \brief Function type used by lookupInBases() to determine whether a
1662  /// specific base class subobject matches the lookup criteria.
1663  ///
1664  /// \param Specifier the base-class specifier that describes the inheritance
1665  /// from the base class we are trying to match.
1666  ///
1667  /// \param Path the current path, from the most-derived class down to the
1668  /// base named by the \p Specifier.
1669  ///
1670  /// \returns true if this base matched the search criteria, false otherwise.
1671  using BaseMatchesCallback =
1672  llvm::function_ref<bool(const CXXBaseSpecifier *Specifier,
1673  CXXBasePath &Path)>;
1674 
1675  /// \brief Look for entities within the base classes of this C++ class,
1676  /// transitively searching all base class subobjects.
1677  ///
1678  /// This routine uses the callback function \p BaseMatches to find base
1679  /// classes meeting some search criteria, walking all base class subobjects
1680  /// and populating the given \p Paths structure with the paths through the
1681  /// inheritance hierarchy that resulted in a match. On a successful search,
1682  /// the \p Paths structure can be queried to retrieve the matching paths and
1683  /// to determine if there were any ambiguities.
1684  ///
1685  /// \param BaseMatches callback function used to determine whether a given
1686  /// base matches the user-defined search criteria.
1687  ///
1688  /// \param Paths used to record the paths from this class to its base class
1689  /// subobjects that match the search criteria.
1690  ///
1691  /// \param LookupInDependent can be set to true to extend the search to
1692  /// dependent base classes.
1693  ///
1694  /// \returns true if there exists any path from this class to a base class
1695  /// subobject that matches the search criteria.
1696  bool lookupInBases(BaseMatchesCallback BaseMatches, CXXBasePaths &Paths,
1697  bool LookupInDependent = false) const;
1698 
1699  /// \brief Base-class lookup callback that determines whether the given
1700  /// base class specifier refers to a specific class declaration.
1701  ///
1702  /// This callback can be used with \c lookupInBases() to determine whether
1703  /// a given derived class has is a base class subobject of a particular type.
1704  /// The base record pointer should refer to the canonical CXXRecordDecl of the
1705  /// base class that we are searching for.
1706  static bool FindBaseClass(const CXXBaseSpecifier *Specifier,
1707  CXXBasePath &Path, const CXXRecordDecl *BaseRecord);
1708 
1709  /// \brief Base-class lookup callback that determines whether the
1710  /// given base class specifier refers to a specific class
1711  /// declaration and describes virtual derivation.
1712  ///
1713  /// This callback can be used with \c lookupInBases() to determine
1714  /// whether a given derived class has is a virtual base class
1715  /// subobject of a particular type. The base record pointer should
1716  /// refer to the canonical CXXRecordDecl of the base class that we
1717  /// are searching for.
1718  static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier,
1719  CXXBasePath &Path,
1720  const CXXRecordDecl *BaseRecord);
1721 
1722  /// \brief Base-class lookup callback that determines whether there exists
1723  /// a tag with the given name.
1724  ///
1725  /// This callback can be used with \c lookupInBases() to find tag members
1726  /// of the given name within a C++ class hierarchy.
1727  static bool FindTagMember(const CXXBaseSpecifier *Specifier,
1728  CXXBasePath &Path, DeclarationName Name);
1729 
1730  /// \brief Base-class lookup callback that determines whether there exists
1731  /// a member with the given name.
1732  ///
1733  /// This callback can be used with \c lookupInBases() to find members
1734  /// of the given name within a C++ class hierarchy.
1735  static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier,
1736  CXXBasePath &Path, DeclarationName Name);
1737 
1738  /// \brief Base-class lookup callback that determines whether there exists
1739  /// a member with the given name.
1740  ///
1741  /// This callback can be used with \c lookupInBases() to find members
1742  /// of the given name within a C++ class hierarchy, including dependent
1743  /// classes.
1744  static bool
1745  FindOrdinaryMemberInDependentClasses(const CXXBaseSpecifier *Specifier,
1746  CXXBasePath &Path, DeclarationName Name);
1747 
1748  /// \brief Base-class lookup callback that determines whether there exists
1749  /// an OpenMP declare reduction member with the given name.
1750  ///
1751  /// This callback can be used with \c lookupInBases() to find members
1752  /// of the given name within a C++ class hierarchy.
1753  static bool FindOMPReductionMember(const CXXBaseSpecifier *Specifier,
1754  CXXBasePath &Path, DeclarationName Name);
1755 
1756  /// \brief Base-class lookup callback that determines whether there exists
1757  /// a member with the given name that can be used in a nested-name-specifier.
1758  ///
1759  /// This callback can be used with \c lookupInBases() to find members of
1760  /// the given name within a C++ class hierarchy that can occur within
1761  /// nested-name-specifiers.
1762  static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier,
1763  CXXBasePath &Path,
1764  DeclarationName Name);
1765 
1766  /// \brief Retrieve the final overriders for each virtual member
1767  /// function in the class hierarchy where this class is the
1768  /// most-derived class in the class hierarchy.
1769  void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const;
1770 
1771  /// \brief Get the indirect primary bases for this class.
1772  void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const;
1773 
1774  /// Performs an imprecise lookup of a dependent name in this class.
1775  ///
1776  /// This function does not follow strict semantic rules and should be used
1777  /// only when lookup rules can be relaxed, e.g. indexing.
1778  std::vector<const NamedDecl *>
1779  lookupDependentName(const DeclarationName &Name,
1780  llvm::function_ref<bool(const NamedDecl *ND)> Filter);
1781 
1782  /// Renders and displays an inheritance diagram
1783  /// for this C++ class and all of its base classes (transitively) using
1784  /// GraphViz.
1785  void viewInheritance(ASTContext& Context) const;
1786 
1787  /// \brief Calculates the access of a decl that is reached
1788  /// along a path.
1790  AccessSpecifier DeclAccess) {
1791  assert(DeclAccess != AS_none);
1792  if (DeclAccess == AS_private) return AS_none;
1793  return (PathAccess > DeclAccess ? PathAccess : DeclAccess);
1794  }
1795 
1796  /// \brief Indicates that the declaration of a defaulted or deleted special
1797  /// member function is now complete.
1798  void finishedDefaultedOrDeletedMember(CXXMethodDecl *MD);
1799 
1800  /// \brief Indicates that the definition of this class is now complete.
1801  void completeDefinition() override;
1802 
1803  /// \brief Indicates that the definition of this class is now complete,
1804  /// and provides a final overrider map to help determine
1805  ///
1806  /// \param FinalOverriders The final overrider map for this class, which can
1807  /// be provided as an optimization for abstract-class checking. If NULL,
1808  /// final overriders will be computed if they are needed to complete the
1809  /// definition.
1810  void completeDefinition(CXXFinalOverriderMap *FinalOverriders);
1811 
1812  /// \brief Determine whether this class may end up being abstract, even though
1813  /// it is not yet known to be abstract.
1814  ///
1815  /// \returns true if this class is not known to be abstract but has any
1816  /// base classes that are abstract. In this case, \c completeDefinition()
1817  /// will need to compute final overriders to determine whether the class is
1818  /// actually abstract.
1819  bool mayBeAbstract() const;
1820 
1821  /// \brief If this is the closure type of a lambda expression, retrieve the
1822  /// number to be used for name mangling in the Itanium C++ ABI.
1823  ///
1824  /// Zero indicates that this closure type has internal linkage, so the
1825  /// mangling number does not matter, while a non-zero value indicates which
1826  /// lambda expression this is in this particular context.
1827  unsigned getLambdaManglingNumber() const {
1828  assert(isLambda() && "Not a lambda closure type!");
1829  return getLambdaData().ManglingNumber;
1830  }
1831 
1832  /// \brief Retrieve the declaration that provides additional context for a
1833  /// lambda, when the normal declaration context is not specific enough.
1834  ///
1835  /// Certain contexts (default arguments of in-class function parameters and
1836  /// the initializers of data members) have separate name mangling rules for
1837  /// lambdas within the Itanium C++ ABI. For these cases, this routine provides
1838  /// the declaration in which the lambda occurs, e.g., the function parameter
1839  /// or the non-static data member. Otherwise, it returns NULL to imply that
1840  /// the declaration context suffices.
1841  Decl *getLambdaContextDecl() const;
1842 
1843  /// \brief Set the mangling number and context declaration for a lambda
1844  /// class.
1845  void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl) {
1846  getLambdaData().ManglingNumber = ManglingNumber;
1847  getLambdaData().ContextDecl = ContextDecl;
1848  }
1849 
1850  /// \brief Returns the inheritance model used for this record.
1851  MSInheritanceAttr::Spelling getMSInheritanceModel() const;
1852 
1853  /// \brief Calculate what the inheritance model would be for this class.
1854  MSInheritanceAttr::Spelling calculateInheritanceModel() const;
1855 
1856  /// In the Microsoft C++ ABI, use zero for the field offset of a null data
1857  /// member pointer if we can guarantee that zero is not a valid field offset,
1858  /// or if the member pointer has multiple fields. Polymorphic classes have a
1859  /// vfptr at offset zero, so we can use zero for null. If there are multiple
1860  /// fields, we can use zero even if it is a valid field offset because
1861  /// null-ness testing will check the other fields.
1862  bool nullFieldOffsetIsZero() const {
1863  return !MSInheritanceAttr::hasOnlyOneField(/*IsMemberFunction=*/false,
1864  getMSInheritanceModel()) ||
1865  (hasDefinition() && isPolymorphic());
1866  }
1867 
1868  /// \brief Controls when vtordisps will be emitted if this record is used as a
1869  /// virtual base.
1870  MSVtorDispAttr::Mode getMSVtorDispMode() const;
1871 
1872  /// \brief Determine whether this lambda expression was known to be dependent
1873  /// at the time it was created, even if its context does not appear to be
1874  /// dependent.
1875  ///
1876  /// This flag is a workaround for an issue with parsing, where default
1877  /// arguments are parsed before their enclosing function declarations have
1878  /// been created. This means that any lambda expressions within those
1879  /// default arguments will have as their DeclContext the context enclosing
1880  /// the function declaration, which may be non-dependent even when the
1881  /// function declaration itself is dependent. This flag indicates when we
1882  /// know that the lambda is dependent despite that.
1883  bool isDependentLambda() const {
1884  return isLambda() && getLambdaData().Dependent;
1885  }
1886 
1888  return getLambdaData().MethodTyInfo;
1889  }
1890 
1891  // \brief Determine whether this type is an Interface Like type for
1892  // __interface inheritence purposes.
1893  bool isInterfaceLike() const;
1894 
1895  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1896  static bool classofKind(Kind K) {
1897  return K >= firstCXXRecord && K <= lastCXXRecord;
1898  }
1899 };
1900 
1901 /// \brief Represents a C++ deduction guide declaration.
1902 ///
1903 /// \code
1904 /// template<typename T> struct A { A(); A(T); };
1905 /// A() -> A<int>;
1906 /// \endcode
1907 ///
1908 /// In this example, there will be an explicit deduction guide from the
1909 /// second line, and implicit deduction guide templates synthesized from
1910 /// the constructors of \c A.
1912  void anchor() override;
1913 
1914 private:
1916  bool IsExplicit, const DeclarationNameInfo &NameInfo,
1917  QualType T, TypeSourceInfo *TInfo,
1918  SourceLocation EndLocation)
1919  : FunctionDecl(CXXDeductionGuide, C, DC, StartLoc, NameInfo, T, TInfo,
1920  SC_None, false, false) {
1921  if (EndLocation.isValid())
1922  setRangeEnd(EndLocation);
1923  IsExplicitSpecified = IsExplicit;
1924  }
1925 
1926 public:
1927  friend class ASTDeclReader;
1928  friend class ASTDeclWriter;
1929 
1931  SourceLocation StartLoc, bool IsExplicit,
1932  const DeclarationNameInfo &NameInfo,
1933  QualType T, TypeSourceInfo *TInfo,
1934  SourceLocation EndLocation);
1935 
1936  static CXXDeductionGuideDecl *CreateDeserialized(ASTContext &C, unsigned ID);
1937 
1938  /// Whether this deduction guide is explicit.
1939  bool isExplicit() const { return IsExplicitSpecified; }
1940 
1941  /// Whether this deduction guide was declared with the 'explicit' specifier.
1942  bool isExplicitSpecified() const { return IsExplicitSpecified; }
1943 
1944  /// Get the template for which this guide performs deduction.
1946  return getDeclName().getCXXDeductionGuideTemplate();
1947  }
1948 
1950  IsCopyDeductionCandidate = true;
1951  }
1952 
1953  bool isCopyDeductionCandidate() const { return IsCopyDeductionCandidate; }
1954 
1955  // Implement isa/cast/dyncast/etc.
1956  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1957  static bool classofKind(Kind K) { return K == CXXDeductionGuide; }
1958 };
1959 
1960 /// \brief Represents a static or instance method of a struct/union/class.
1961 ///
1962 /// In the terminology of the C++ Standard, these are the (static and
1963 /// non-static) member functions, whether virtual or not.
1964 class CXXMethodDecl : public FunctionDecl {
1965  void anchor() override;
1966 
1967 protected:
1969  SourceLocation StartLoc, const DeclarationNameInfo &NameInfo,
1970  QualType T, TypeSourceInfo *TInfo,
1971  StorageClass SC, bool isInline,
1972  bool isConstexpr, SourceLocation EndLocation)
1973  : FunctionDecl(DK, C, RD, StartLoc, NameInfo, T, TInfo,
1974  SC, isInline, isConstexpr) {
1975  if (EndLocation.isValid())
1976  setRangeEnd(EndLocation);
1977  }
1978 
1979 public:
1980  static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD,
1981  SourceLocation StartLoc,
1982  const DeclarationNameInfo &NameInfo,
1983  QualType T, TypeSourceInfo *TInfo,
1984  StorageClass SC,
1985  bool isInline,
1986  bool isConstexpr,
1987  SourceLocation EndLocation);
1988 
1989  static CXXMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID);
1990 
1991  bool isStatic() const;
1992  bool isInstance() const { return !isStatic(); }
1993 
1994  /// Returns true if the given operator is implicitly static in a record
1995  /// context.
1997  // [class.free]p1:
1998  // Any allocation function for a class T is a static member
1999  // (even if not explicitly declared static).
2000  // [class.free]p6 Any deallocation function for a class X is a static member
2001  // (even if not explicitly declared static).
2002  return OOK == OO_New || OOK == OO_Array_New || OOK == OO_Delete ||
2003  OOK == OO_Array_Delete;
2004  }
2005 
2006  bool isConst() const { return getType()->castAs<FunctionType>()->isConst(); }
2007  bool isVolatile() const { return getType()->castAs<FunctionType>()->isVolatile(); }
2008 
2009  bool isVirtual() const {
2010  CXXMethodDecl *CD =
2011  cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl());
2012 
2013  // Member function is virtual if it is marked explicitly so, or if it is
2014  // declared in __interface -- then it is automatically pure virtual.
2015  if (CD->isVirtualAsWritten() || CD->isPure())
2016  return true;
2017 
2018  return (CD->begin_overridden_methods() != CD->end_overridden_methods());
2019  }
2020 
2021  /// If it's possible to devirtualize a call to this method, return the called
2022  /// function. Otherwise, return null.
2023 
2024  /// \param Base The object on which this virtual function is called.
2025  /// \param IsAppleKext True if we are compiling for Apple kext.
2026  CXXMethodDecl *getDevirtualizedMethod(const Expr *Base, bool IsAppleKext);
2027 
2029  bool IsAppleKext) const {
2030  return const_cast<CXXMethodDecl *>(this)->getDevirtualizedMethod(
2031  Base, IsAppleKext);
2032  }
2033 
2034  /// \brief Determine whether this is a usual deallocation function
2035  /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded
2036  /// delete or delete[] operator with a particular signature.
2037  bool isUsualDeallocationFunction() const;
2038 
2039  /// \brief Determine whether this is a copy-assignment operator, regardless
2040  /// of whether it was declared implicitly or explicitly.
2041  bool isCopyAssignmentOperator() const;
2042 
2043  /// \brief Determine whether this is a move assignment operator.
2044  bool isMoveAssignmentOperator() const;
2045 
2047  return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl());
2048  }
2050  return const_cast<CXXMethodDecl*>(this)->getCanonicalDecl();
2051  }
2052 
2054  return cast<CXXMethodDecl>(
2055  static_cast<FunctionDecl *>(this)->getMostRecentDecl());
2056  }
2058  return const_cast<CXXMethodDecl*>(this)->getMostRecentDecl();
2059  }
2060 
2061  /// True if this method is user-declared and was not
2062  /// deleted or defaulted on its first declaration.
2063  bool isUserProvided() const {
2064  auto *DeclAsWritten = this;
2065  if (auto *Pattern = getTemplateInstantiationPattern())
2066  DeclAsWritten = cast<CXXMethodDecl>(Pattern);
2067  return !(DeclAsWritten->isDeleted() ||
2068  DeclAsWritten->getCanonicalDecl()->isDefaulted());
2069  }
2070 
2071  void addOverriddenMethod(const CXXMethodDecl *MD);
2072 
2073  using method_iterator = const CXXMethodDecl *const *;
2074 
2075  method_iterator begin_overridden_methods() const;
2076  method_iterator end_overridden_methods() const;
2077  unsigned size_overridden_methods() const;
2078 
2080 
2081  overridden_method_range overridden_methods() const;
2082 
2083  /// Returns the parent of this method declaration, which
2084  /// is the class in which this method is defined.
2085  const CXXRecordDecl *getParent() const {
2086  return cast<CXXRecordDecl>(FunctionDecl::getParent());
2087  }
2088 
2089  /// Returns the parent of this method declaration, which
2090  /// is the class in which this method is defined.
2092  return const_cast<CXXRecordDecl *>(
2093  cast<CXXRecordDecl>(FunctionDecl::getParent()));
2094  }
2095 
2096  /// \brief Returns the type of the \c this pointer.
2097  ///
2098  /// Should only be called for instance (i.e., non-static) methods. Note
2099  /// that for the call operator of a lambda closure type, this returns the
2100  /// desugared 'this' type (a pointer to the closure type), not the captured
2101  /// 'this' type.
2102  QualType getThisType(ASTContext &C) const;
2103 
2104  unsigned getTypeQualifiers() const {
2105  return getType()->getAs<FunctionProtoType>()->getTypeQuals();
2106  }
2107 
2108  /// \brief Retrieve the ref-qualifier associated with this method.
2109  ///
2110  /// In the following example, \c f() has an lvalue ref-qualifier, \c g()
2111  /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier.
2112  /// @code
2113  /// struct X {
2114  /// void f() &;
2115  /// void g() &&;
2116  /// void h();
2117  /// };
2118  /// @endcode
2120  return getType()->getAs<FunctionProtoType>()->getRefQualifier();
2121  }
2122 
2123  bool hasInlineBody() const;
2124 
2125  /// \brief Determine whether this is a lambda closure type's static member
2126  /// function that is used for the result of the lambda's conversion to
2127  /// function pointer (for a lambda with no captures).
2128  ///
2129  /// The function itself, if used, will have a placeholder body that will be
2130  /// supplied by IR generation to either forward to the function call operator
2131  /// or clone the function call operator.
2132  bool isLambdaStaticInvoker() const;
2133 
2134  /// \brief Find the method in \p RD that corresponds to this one.
2135  ///
2136  /// Find if \p RD or one of the classes it inherits from override this method.
2137  /// If so, return it. \p RD is assumed to be a subclass of the class defining
2138  /// this method (or be the class itself), unless \p MayBeBase is set to true.
2139  CXXMethodDecl *
2140  getCorrespondingMethodInClass(const CXXRecordDecl *RD,
2141  bool MayBeBase = false);
2142 
2143  const CXXMethodDecl *
2145  bool MayBeBase = false) const {
2146  return const_cast<CXXMethodDecl *>(this)
2147  ->getCorrespondingMethodInClass(RD, MayBeBase);
2148  }
2149 
2150  // Implement isa/cast/dyncast/etc.
2151  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2152  static bool classofKind(Kind K) {
2153  return K >= firstCXXMethod && K <= lastCXXMethod;
2154  }
2155 };
2156 
2157 /// \brief Represents a C++ base or member initializer.
2158 ///
2159 /// This is part of a constructor initializer that
2160 /// initializes one non-static member variable or one base class. For
2161 /// example, in the following, both 'A(a)' and 'f(3.14159)' are member
2162 /// initializers:
2163 ///
2164 /// \code
2165 /// class A { };
2166 /// class B : public A {
2167 /// float f;
2168 /// public:
2169 /// B(A& a) : A(a), f(3.14159) { }
2170 /// };
2171 /// \endcode
2172 class CXXCtorInitializer final {
2173  /// \brief Either the base class name/delegating constructor type (stored as
2174  /// a TypeSourceInfo*), an normal field (FieldDecl), or an anonymous field
2175  /// (IndirectFieldDecl*) being initialized.
2176  llvm::PointerUnion3<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *>
2177  Initializee;
2178 
2179  /// \brief The source location for the field name or, for a base initializer
2180  /// pack expansion, the location of the ellipsis.
2181  ///
2182  /// In the case of a delegating
2183  /// constructor, it will still include the type's source location as the
2184  /// Initializee points to the CXXConstructorDecl (to allow loop detection).
2185  SourceLocation MemberOrEllipsisLocation;
2186 
2187  /// \brief The argument used to initialize the base or member, which may
2188  /// end up constructing an object (when multiple arguments are involved).
2189  Stmt *Init;
2190 
2191  /// \brief Location of the left paren of the ctor-initializer.
2192  SourceLocation LParenLoc;
2193 
2194  /// \brief Location of the right paren of the ctor-initializer.
2195  SourceLocation RParenLoc;
2196 
2197  /// \brief If the initializee is a type, whether that type makes this
2198  /// a delegating initialization.
2199  unsigned IsDelegating : 1;
2200 
2201  /// \brief If the initializer is a base initializer, this keeps track
2202  /// of whether the base is virtual or not.
2203  unsigned IsVirtual : 1;
2204 
2205  /// \brief Whether or not the initializer is explicitly written
2206  /// in the sources.
2207  unsigned IsWritten : 1;
2208 
2209  /// If IsWritten is true, then this number keeps track of the textual order
2210  /// of this initializer in the original sources, counting from 0.
2211  unsigned SourceOrder : 13;
2212 
2213 public:
2214  /// \brief Creates a new base-class initializer.
2215  explicit
2216  CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual,
2217  SourceLocation L, Expr *Init, SourceLocation R,
2218  SourceLocation EllipsisLoc);
2219 
2220  /// \brief Creates a new member initializer.
2221  explicit
2222  CXXCtorInitializer(ASTContext &Context, FieldDecl *Member,
2223  SourceLocation MemberLoc, SourceLocation L, Expr *Init,
2224  SourceLocation R);
2225 
2226  /// \brief Creates a new anonymous field initializer.
2227  explicit
2229  SourceLocation MemberLoc, SourceLocation L, Expr *Init,
2230  SourceLocation R);
2231 
2232  /// \brief Creates a new delegating initializer.
2233  explicit
2234  CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo,
2235  SourceLocation L, Expr *Init, SourceLocation R);
2236 
2237  /// \brief Determine whether this initializer is initializing a base class.
2238  bool isBaseInitializer() const {
2239  return Initializee.is<TypeSourceInfo*>() && !IsDelegating;
2240  }
2241 
2242  /// \brief Determine whether this initializer is initializing a non-static
2243  /// data member.
2244  bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); }
2245 
2246  bool isAnyMemberInitializer() const {
2247  return isMemberInitializer() || isIndirectMemberInitializer();
2248  }
2249 
2251  return Initializee.is<IndirectFieldDecl*>();
2252  }
2253 
2254  /// \brief Determine whether this initializer is an implicit initializer
2255  /// generated for a field with an initializer defined on the member
2256  /// declaration.
2257  ///
2258  /// In-class member initializers (also known as "non-static data member
2259  /// initializations", NSDMIs) were introduced in C++11.
2261  return Init->getStmtClass() == Stmt::CXXDefaultInitExprClass;
2262  }
2263 
2264  /// \brief Determine whether this initializer is creating a delegating
2265  /// constructor.
2267  return Initializee.is<TypeSourceInfo*>() && IsDelegating;
2268  }
2269 
2270  /// \brief Determine whether this initializer is a pack expansion.
2271  bool isPackExpansion() const {
2272  return isBaseInitializer() && MemberOrEllipsisLocation.isValid();
2273  }
2274 
2275  // \brief For a pack expansion, returns the location of the ellipsis.
2277  assert(isPackExpansion() && "Initializer is not a pack expansion");
2278  return MemberOrEllipsisLocation;
2279  }
2280 
2281  /// If this is a base class initializer, returns the type of the
2282  /// base class with location information. Otherwise, returns an NULL
2283  /// type location.
2284  TypeLoc getBaseClassLoc() const;
2285 
2286  /// If this is a base class initializer, returns the type of the base class.
2287  /// Otherwise, returns null.
2288  const Type *getBaseClass() const;
2289 
2290  /// Returns whether the base is virtual or not.
2291  bool isBaseVirtual() const {
2292  assert(isBaseInitializer() && "Must call this on base initializer!");
2293 
2294  return IsVirtual;
2295  }
2296 
2297  /// \brief Returns the declarator information for a base class or delegating
2298  /// initializer.
2300  return Initializee.dyn_cast<TypeSourceInfo *>();
2301  }
2302 
2303  /// \brief If this is a member initializer, returns the declaration of the
2304  /// non-static data member being initialized. Otherwise, returns null.
2306  if (isMemberInitializer())
2307  return Initializee.get<FieldDecl*>();
2308  return nullptr;
2309  }
2310 
2312  if (isMemberInitializer())
2313  return Initializee.get<FieldDecl*>();
2314  if (isIndirectMemberInitializer())
2315  return Initializee.get<IndirectFieldDecl*>()->getAnonField();
2316  return nullptr;
2317  }
2318 
2320  if (isIndirectMemberInitializer())
2321  return Initializee.get<IndirectFieldDecl*>();
2322  return nullptr;
2323  }
2324 
2326  return MemberOrEllipsisLocation;
2327  }
2328 
2329  /// \brief Determine the source location of the initializer.
2330  SourceLocation getSourceLocation() const;
2331 
2332  /// \brief Determine the source range covering the entire initializer.
2333  SourceRange getSourceRange() const LLVM_READONLY;
2334 
2335  /// \brief Determine whether this initializer is explicitly written
2336  /// in the source code.
2337  bool isWritten() const { return IsWritten; }
2338 
2339  /// \brief Return the source position of the initializer, counting from 0.
2340  /// If the initializer was implicit, -1 is returned.
2341  int getSourceOrder() const {
2342  return IsWritten ? static_cast<int>(SourceOrder) : -1;
2343  }
2344 
2345  /// \brief Set the source order of this initializer.
2346  ///
2347  /// This can only be called once for each initializer; it cannot be called
2348  /// on an initializer having a positive number of (implicit) array indices.
2349  ///
2350  /// This assumes that the initializer was written in the source code, and
2351  /// ensures that isWritten() returns true.
2352  void setSourceOrder(int Pos) {
2353  assert(!IsWritten &&
2354  "setSourceOrder() used on implicit initializer");
2355  assert(SourceOrder == 0 &&
2356  "calling twice setSourceOrder() on the same initializer");
2357  assert(Pos >= 0 &&
2358  "setSourceOrder() used to make an initializer implicit");
2359  IsWritten = true;
2360  SourceOrder = static_cast<unsigned>(Pos);
2361  }
2362 
2363  SourceLocation getLParenLoc() const { return LParenLoc; }
2364  SourceLocation getRParenLoc() const { return RParenLoc; }
2365 
2366  /// \brief Get the initializer.
2367  Expr *getInit() const { return static_cast<Expr*>(Init); }
2368 };
2369 
2370 /// Description of a constructor that was inherited from a base class.
2372  ConstructorUsingShadowDecl *Shadow = nullptr;
2373  CXXConstructorDecl *BaseCtor = nullptr;
2374 
2375 public:
2376  InheritedConstructor() = default;
2378  CXXConstructorDecl *BaseCtor)
2379  : Shadow(Shadow), BaseCtor(BaseCtor) {}
2380 
2381  explicit operator bool() const { return Shadow; }
2382 
2383  ConstructorUsingShadowDecl *getShadowDecl() const { return Shadow; }
2384  CXXConstructorDecl *getConstructor() const { return BaseCtor; }
2385 };
2386 
2387 /// \brief Represents a C++ constructor within a class.
2388 ///
2389 /// For example:
2390 ///
2391 /// \code
2392 /// class X {
2393 /// public:
2394 /// explicit X(int); // represented by a CXXConstructorDecl.
2395 /// };
2396 /// \endcode
2398  : public CXXMethodDecl,
2399  private llvm::TrailingObjects<CXXConstructorDecl, InheritedConstructor> {
2400  /// \name Support for base and member initializers.
2401  /// \{
2402  /// \brief The arguments used to initialize the base or member.
2403  LazyCXXCtorInitializersPtr CtorInitializers;
2404  unsigned NumCtorInitializers : 31;
2405  /// \}
2406 
2407  /// \brief Whether this constructor declaration is an implicitly-declared
2408  /// inheriting constructor.
2409  unsigned IsInheritingConstructor : 1;
2410 
2412  const DeclarationNameInfo &NameInfo,
2413  QualType T, TypeSourceInfo *TInfo,
2414  bool isExplicitSpecified, bool isInline,
2415  bool isImplicitlyDeclared, bool isConstexpr,
2416  InheritedConstructor Inherited)
2417  : CXXMethodDecl(CXXConstructor, C, RD, StartLoc, NameInfo, T, TInfo,
2418  SC_None, isInline, isConstexpr, SourceLocation()),
2419  NumCtorInitializers(0), IsInheritingConstructor((bool)Inherited) {
2420  setImplicit(isImplicitlyDeclared);
2421  if (Inherited)
2422  *getTrailingObjects<InheritedConstructor>() = Inherited;
2423  IsExplicitSpecified = isExplicitSpecified;
2424  }
2425 
2426  void anchor() override;
2427 
2428 public:
2429  friend class ASTDeclReader;
2430  friend class ASTDeclWriter;
2432 
2433  static CXXConstructorDecl *CreateDeserialized(ASTContext &C, unsigned ID,
2434  bool InheritsConstructor);
2435  static CXXConstructorDecl *
2436  Create(ASTContext &C, CXXRecordDecl *RD, SourceLocation StartLoc,
2437  const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo,
2438  bool isExplicit, bool isInline, bool isImplicitlyDeclared,
2439  bool isConstexpr,
2441 
2442  /// \brief Iterates through the member/base initializer list.
2444 
2445  /// \brief Iterates through the member/base initializer list.
2447 
2448  using init_range = llvm::iterator_range<init_iterator>;
2449  using init_const_range = llvm::iterator_range<init_const_iterator>;
2450 
2451  init_range inits() { return init_range(init_begin(), init_end()); }
2453  return init_const_range(init_begin(), init_end());
2454  }
2455 
2456  /// \brief Retrieve an iterator to the first initializer.
2458  const auto *ConstThis = this;
2459  return const_cast<init_iterator>(ConstThis->init_begin());
2460  }
2461 
2462  /// \brief Retrieve an iterator to the first initializer.
2463  init_const_iterator init_begin() const;
2464 
2465  /// \brief Retrieve an iterator past the last initializer.
2467  return init_begin() + NumCtorInitializers;
2468  }
2469 
2470  /// \brief Retrieve an iterator past the last initializer.
2472  return init_begin() + NumCtorInitializers;
2473  }
2474 
2475  using init_reverse_iterator = std::reverse_iterator<init_iterator>;
2477  std::reverse_iterator<init_const_iterator>;
2478 
2480  return init_reverse_iterator(init_end());
2481  }
2483  return init_const_reverse_iterator(init_end());
2484  }
2485 
2487  return init_reverse_iterator(init_begin());
2488  }
2490  return init_const_reverse_iterator(init_begin());
2491  }
2492 
2493  /// \brief Determine the number of arguments used to initialize the member
2494  /// or base.
2495  unsigned getNumCtorInitializers() const {
2496  return NumCtorInitializers;
2497  }
2498 
2499  void setNumCtorInitializers(unsigned numCtorInitializers) {
2500  NumCtorInitializers = numCtorInitializers;
2501  }
2502 
2504  CtorInitializers = Initializers;
2505  }
2506 
2507  /// Whether this function is marked as explicit explicitly.
2508  bool isExplicitSpecified() const { return IsExplicitSpecified; }
2509 
2510  /// Whether this function is explicit.
2511  bool isExplicit() const {
2512  return getCanonicalDecl()->isExplicitSpecified();
2513  }
2514 
2515  /// \brief Determine whether this constructor is a delegating constructor.
2517  return (getNumCtorInitializers() == 1) &&
2518  init_begin()[0]->isDelegatingInitializer();
2519  }
2520 
2521  /// \brief When this constructor delegates to another, retrieve the target.
2522  CXXConstructorDecl *getTargetConstructor() const;
2523 
2524  /// Whether this constructor is a default
2525  /// constructor (C++ [class.ctor]p5), which can be used to
2526  /// default-initialize a class of this type.
2527  bool isDefaultConstructor() const;
2528 
2529  /// \brief Whether this constructor is a copy constructor (C++ [class.copy]p2,
2530  /// which can be used to copy the class.
2531  ///
2532  /// \p TypeQuals will be set to the qualifiers on the
2533  /// argument type. For example, \p TypeQuals would be set to \c
2534  /// Qualifiers::Const for the following copy constructor:
2535  ///
2536  /// \code
2537  /// class X {
2538  /// public:
2539  /// X(const X&);
2540  /// };
2541  /// \endcode
2542  bool isCopyConstructor(unsigned &TypeQuals) const;
2543 
2544  /// Whether this constructor is a copy
2545  /// constructor (C++ [class.copy]p2, which can be used to copy the
2546  /// class.
2547  bool isCopyConstructor() const {
2548  unsigned TypeQuals = 0;
2549  return isCopyConstructor(TypeQuals);
2550  }
2551 
2552  /// \brief Determine whether this constructor is a move constructor
2553  /// (C++11 [class.copy]p3), which can be used to move values of the class.
2554  ///
2555  /// \param TypeQuals If this constructor is a move constructor, will be set
2556  /// to the type qualifiers on the referent of the first parameter's type.
2557  bool isMoveConstructor(unsigned &TypeQuals) const;
2558 
2559  /// \brief Determine whether this constructor is a move constructor
2560  /// (C++11 [class.copy]p3), which can be used to move values of the class.
2561  bool isMoveConstructor() const {
2562  unsigned TypeQuals = 0;
2563  return isMoveConstructor(TypeQuals);
2564  }
2565 
2566  /// \brief Determine whether this is a copy or move constructor.
2567  ///
2568  /// \param TypeQuals Will be set to the type qualifiers on the reference
2569  /// parameter, if in fact this is a copy or move constructor.
2570  bool isCopyOrMoveConstructor(unsigned &TypeQuals) const;
2571 
2572  /// \brief Determine whether this a copy or move constructor.
2574  unsigned Quals;
2575  return isCopyOrMoveConstructor(Quals);
2576  }
2577 
2578  /// Whether this constructor is a
2579  /// converting constructor (C++ [class.conv.ctor]), which can be
2580  /// used for user-defined conversions.
2581  bool isConvertingConstructor(bool AllowExplicit) const;
2582 
2583  /// \brief Determine whether this is a member template specialization that
2584  /// would copy the object to itself. Such constructors are never used to copy
2585  /// an object.
2586  bool isSpecializationCopyingObject() const;
2587 
2588  /// \brief Determine whether this is an implicit constructor synthesized to
2589  /// model a call to a constructor inherited from a base class.
2590  bool isInheritingConstructor() const { return IsInheritingConstructor; }
2591 
2592  /// \brief Get the constructor that this inheriting constructor is based on.
2594  return IsInheritingConstructor ? *getTrailingObjects<InheritedConstructor>()
2596  }
2597 
2599  return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl());
2600  }
2602  return const_cast<CXXConstructorDecl*>(this)->getCanonicalDecl();
2603  }
2604 
2605  // Implement isa/cast/dyncast/etc.
2606  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2607  static bool classofKind(Kind K) { return K == CXXConstructor; }
2608 };
2609 
2610 /// \brief Represents a C++ destructor within a class.
2611 ///
2612 /// For example:
2613 ///
2614 /// \code
2615 /// class X {
2616 /// public:
2617 /// ~X(); // represented by a CXXDestructorDecl.
2618 /// };
2619 /// \endcode
2621  friend class ASTDeclReader;
2622  friend class ASTDeclWriter;
2623 
2624  // FIXME: Don't allocate storage for these except in the first declaration
2625  // of a virtual destructor.
2626  FunctionDecl *OperatorDelete = nullptr;
2627  Expr *OperatorDeleteThisArg = nullptr;
2628 
2630  const DeclarationNameInfo &NameInfo,
2631  QualType T, TypeSourceInfo *TInfo,
2632  bool isInline, bool isImplicitlyDeclared)
2633  : CXXMethodDecl(CXXDestructor, C, RD, StartLoc, NameInfo, T, TInfo,
2634  SC_None, isInline, /*isConstexpr=*/false, SourceLocation())
2635  {
2636  setImplicit(isImplicitlyDeclared);
2637  }
2638 
2639  void anchor() override;
2640 
2641 public:
2643  SourceLocation StartLoc,
2644  const DeclarationNameInfo &NameInfo,
2645  QualType T, TypeSourceInfo* TInfo,
2646  bool isInline,
2647  bool isImplicitlyDeclared);
2648  static CXXDestructorDecl *CreateDeserialized(ASTContext & C, unsigned ID);
2649 
2650  void setOperatorDelete(FunctionDecl *OD, Expr *ThisArg);
2651 
2653  return getCanonicalDecl()->OperatorDelete;
2654  }
2655 
2657  return getCanonicalDecl()->OperatorDeleteThisArg;
2658  }
2659 
2661  return cast<CXXDestructorDecl>(FunctionDecl::getCanonicalDecl());
2662  }
2664  return const_cast<CXXDestructorDecl*>(this)->getCanonicalDecl();
2665  }
2666 
2667  // Implement isa/cast/dyncast/etc.
2668  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2669  static bool classofKind(Kind K) { return K == CXXDestructor; }
2670 };
2671 
2672 /// \brief Represents a C++ conversion function within a class.
2673 ///
2674 /// For example:
2675 ///
2676 /// \code
2677 /// class X {
2678 /// public:
2679 /// operator bool();
2680 /// };
2681 /// \endcode
2684  const DeclarationNameInfo &NameInfo, QualType T,
2685  TypeSourceInfo *TInfo, bool isInline,
2686  bool isExplicitSpecified, bool isConstexpr,
2687  SourceLocation EndLocation)
2688  : CXXMethodDecl(CXXConversion, C, RD, StartLoc, NameInfo, T, TInfo,
2689  SC_None, isInline, isConstexpr, EndLocation) {
2690  IsExplicitSpecified = isExplicitSpecified;
2691  }
2692 
2693  void anchor() override;
2694 
2695 public:
2696  friend class ASTDeclReader;
2697  friend class ASTDeclWriter;
2698 
2700  SourceLocation StartLoc,
2701  const DeclarationNameInfo &NameInfo,
2702  QualType T, TypeSourceInfo *TInfo,
2703  bool isInline, bool isExplicit,
2704  bool isConstexpr,
2705  SourceLocation EndLocation);
2706  static CXXConversionDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2707 
2708  /// Whether this function is marked as explicit explicitly.
2709  bool isExplicitSpecified() const { return IsExplicitSpecified; }
2710 
2711  /// Whether this function is explicit.
2712  bool isExplicit() const {
2713  return getCanonicalDecl()->isExplicitSpecified();
2714  }
2715 
2716  /// \brief Returns the type that this conversion function is converting to.
2718  return getType()->getAs<FunctionType>()->getReturnType();
2719  }
2720 
2721  /// \brief Determine whether this conversion function is a conversion from
2722  /// a lambda closure type to a block pointer.
2723  bool isLambdaToBlockPointerConversion() const;
2724 
2726  return cast<CXXConversionDecl>(FunctionDecl::getCanonicalDecl());
2727  }
2729  return const_cast<CXXConversionDecl*>(this)->getCanonicalDecl();
2730  }
2731 
2732  // Implement isa/cast/dyncast/etc.
2733  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2734  static bool classofKind(Kind K) { return K == CXXConversion; }
2735 };
2736 
2737 /// \brief Represents a linkage specification.
2738 ///
2739 /// For example:
2740 /// \code
2741 /// extern "C" void foo();
2742 /// \endcode
2743 class LinkageSpecDecl : public Decl, public DeclContext {
2744  virtual void anchor();
2745 
2746 public:
2747  /// \brief Represents the language in a linkage specification.
2748  ///
2749  /// The values are part of the serialization ABI for
2750  /// ASTs and cannot be changed without altering that ABI. To help
2751  /// ensure a stable ABI for this, we choose the DW_LANG_ encodings
2752  /// from the dwarf standard.
2754  lang_c = /* DW_LANG_C */ 0x0002,
2755  lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004
2756  };
2757 
2758 private:
2759  /// \brief The language for this linkage specification.
2760  unsigned Language : 3;
2761 
2762  /// \brief True if this linkage spec has braces.
2763  ///
2764  /// This is needed so that hasBraces() returns the correct result while the
2765  /// linkage spec body is being parsed. Once RBraceLoc has been set this is
2766  /// not used, so it doesn't need to be serialized.
2767  unsigned HasBraces : 1;
2768 
2769  /// \brief The source location for the extern keyword.
2770  SourceLocation ExternLoc;
2771 
2772  /// \brief The source location for the right brace (if valid).
2773  SourceLocation RBraceLoc;
2774 
2776  SourceLocation LangLoc, LanguageIDs lang, bool HasBraces)
2777  : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec),
2778  Language(lang), HasBraces(HasBraces), ExternLoc(ExternLoc),
2779  RBraceLoc(SourceLocation()) {}
2780 
2781 public:
2782  static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC,
2783  SourceLocation ExternLoc,
2784  SourceLocation LangLoc, LanguageIDs Lang,
2785  bool HasBraces);
2786  static LinkageSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2787 
2788  /// \brief Return the language specified by this linkage specification.
2789  LanguageIDs getLanguage() const { return LanguageIDs(Language); }
2790 
2791  /// \brief Set the language specified by this linkage specification.
2792  void setLanguage(LanguageIDs L) { Language = L; }
2793 
2794  /// \brief Determines whether this linkage specification had braces in
2795  /// its syntactic form.
2796  bool hasBraces() const {
2797  assert(!RBraceLoc.isValid() || HasBraces);
2798  return HasBraces;
2799  }
2800 
2801  SourceLocation getExternLoc() const { return ExternLoc; }
2802  SourceLocation getRBraceLoc() const { return RBraceLoc; }
2803  void setExternLoc(SourceLocation L) { ExternLoc = L; }
2805  RBraceLoc = L;
2806  HasBraces = RBraceLoc.isValid();
2807  }
2808 
2809  SourceLocation getLocEnd() const LLVM_READONLY {
2810  if (hasBraces())
2811  return getRBraceLoc();
2812  // No braces: get the end location of the (only) declaration in context
2813  // (if present).
2814  return decls_empty() ? getLocation() : decls_begin()->getLocEnd();
2815  }
2816 
2817  SourceRange getSourceRange() const override LLVM_READONLY {
2818  return SourceRange(ExternLoc, getLocEnd());
2819  }
2820 
2821  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2822  static bool classofKind(Kind K) { return K == LinkageSpec; }
2823 
2825  return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D));
2826  }
2827 
2829  return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC));
2830  }
2831 };
2832 
2833 /// \brief Represents C++ using-directive.
2834 ///
2835 /// For example:
2836 /// \code
2837 /// using namespace std;
2838 /// \endcode
2839 ///
2840 /// \note UsingDirectiveDecl should be Decl not NamedDecl, but we provide
2841 /// artificial names for all using-directives in order to store
2842 /// them in DeclContext effectively.
2844  /// \brief The location of the \c using keyword.
2845  SourceLocation UsingLoc;
2846 
2847  /// \brief The location of the \c namespace keyword.
2848  SourceLocation NamespaceLoc;
2849 
2850  /// \brief The nested-name-specifier that precedes the namespace.
2851  NestedNameSpecifierLoc QualifierLoc;
2852 
2853  /// \brief The namespace nominated by this using-directive.
2854  NamedDecl *NominatedNamespace;
2855 
2856  /// Enclosing context containing both using-directive and nominated
2857  /// namespace.
2858  DeclContext *CommonAncestor;
2859 
2861  SourceLocation NamespcLoc,
2862  NestedNameSpecifierLoc QualifierLoc,
2863  SourceLocation IdentLoc,
2864  NamedDecl *Nominated,
2865  DeclContext *CommonAncestor)
2866  : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc),
2867  NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc),
2868  NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) {}
2869 
2870  /// \brief Returns special DeclarationName used by using-directives.
2871  ///
2872  /// This is only used by DeclContext for storing UsingDirectiveDecls in
2873  /// its lookup structure.
2874  static DeclarationName getName() {
2876  }
2877 
2878  void anchor() override;
2879 
2880 public:
2881  friend class ASTDeclReader;
2882 
2883  // Friend for getUsingDirectiveName.
2884  friend class DeclContext;
2885 
2886  /// \brief Retrieve the nested-name-specifier that qualifies the
2887  /// name of the namespace, with source-location information.
2888  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2889 
2890  /// \brief Retrieve the nested-name-specifier that qualifies the
2891  /// name of the namespace.
2893  return QualifierLoc.getNestedNameSpecifier();
2894  }
2895 
2896  NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; }
2898  return NominatedNamespace;
2899  }
2900 
2901  /// \brief Returns the namespace nominated by this using-directive.
2902  NamespaceDecl *getNominatedNamespace();
2903 
2905  return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace();
2906  }
2907 
2908  /// \brief Returns the common ancestor context of this using-directive and
2909  /// its nominated namespace.
2910  DeclContext *getCommonAncestor() { return CommonAncestor; }
2911  const DeclContext *getCommonAncestor() const { return CommonAncestor; }
2912 
2913  /// \brief Return the location of the \c using keyword.
2914  SourceLocation getUsingLoc() const { return UsingLoc; }
2915 
2916  // FIXME: Could omit 'Key' in name.
2917  /// \brief Returns the location of the \c namespace keyword.
2918  SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; }
2919 
2920  /// \brief Returns the location of this using declaration's identifier.
2921  SourceLocation getIdentLocation() const { return getLocation(); }
2922 
2924  SourceLocation UsingLoc,
2925  SourceLocation NamespaceLoc,
2926  NestedNameSpecifierLoc QualifierLoc,
2927  SourceLocation IdentLoc,
2928  NamedDecl *Nominated,
2929  DeclContext *CommonAncestor);
2930  static UsingDirectiveDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2931 
2932  SourceRange getSourceRange() const override LLVM_READONLY {
2933  return SourceRange(UsingLoc, getLocation());
2934  }
2935 
2936  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2937  static bool classofKind(Kind K) { return K == UsingDirective; }
2938 };
2939 
2940 /// \brief Represents a C++ namespace alias.
2941 ///
2942 /// For example:
2943 ///
2944 /// \code
2945 /// namespace Foo = Bar;
2946 /// \endcode
2948  public Redeclarable<NamespaceAliasDecl> {
2949  friend class ASTDeclReader;
2950 
2951  /// \brief The location of the \c namespace keyword.
2952  SourceLocation NamespaceLoc;
2953 
2954  /// \brief The location of the namespace's identifier.
2955  ///
2956  /// This is accessed by TargetNameLoc.
2957  SourceLocation IdentLoc;
2958 
2959  /// \brief The nested-name-specifier that precedes the namespace.
2960  NestedNameSpecifierLoc QualifierLoc;
2961 
2962  /// \brief The Decl that this alias points to, either a NamespaceDecl or
2963  /// a NamespaceAliasDecl.
2964  NamedDecl *Namespace;
2965 
2967  SourceLocation NamespaceLoc, SourceLocation AliasLoc,
2968  IdentifierInfo *Alias, NestedNameSpecifierLoc QualifierLoc,
2969  SourceLocation IdentLoc, NamedDecl *Namespace)
2970  : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), redeclarable_base(C),
2971  NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc),
2972  QualifierLoc(QualifierLoc), Namespace(Namespace) {}
2973 
2974  void anchor() override;
2975 
2977 
2978  NamespaceAliasDecl *getNextRedeclarationImpl() override;
2979  NamespaceAliasDecl *getPreviousDeclImpl() override;
2980  NamespaceAliasDecl *getMostRecentDeclImpl() override;
2981 
2982 public:
2984  SourceLocation NamespaceLoc,
2985  SourceLocation AliasLoc,
2986  IdentifierInfo *Alias,
2987  NestedNameSpecifierLoc QualifierLoc,
2988  SourceLocation IdentLoc,
2989  NamedDecl *Namespace);
2990 
2991  static NamespaceAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2992 
2994  using redecl_iterator = redeclarable_base::redecl_iterator;
2995 
2996  using redeclarable_base::redecls_begin;
2997  using redeclarable_base::redecls_end;
2998  using redeclarable_base::redecls;
2999  using redeclarable_base::getPreviousDecl;
3000  using redeclarable_base::getMostRecentDecl;
3001 
3003  return getFirstDecl();
3004  }
3006  return getFirstDecl();
3007  }
3008 
3009  /// \brief Retrieve the nested-name-specifier that qualifies the
3010  /// name of the namespace, with source-location information.
3011  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3012 
3013  /// \brief Retrieve the nested-name-specifier that qualifies the
3014  /// name of the namespace.
3016  return QualifierLoc.getNestedNameSpecifier();
3017  }
3018 
3019  /// \brief Retrieve the namespace declaration aliased by this directive.
3021  if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace))
3022  return AD->getNamespace();
3023 
3024  return cast<NamespaceDecl>(Namespace);
3025  }
3026 
3027  const NamespaceDecl *getNamespace() const {
3028  return const_cast<NamespaceAliasDecl*>(this)->getNamespace();
3029  }
3030 
3031  /// Returns the location of the alias name, i.e. 'foo' in
3032  /// "namespace foo = ns::bar;".
3033  SourceLocation getAliasLoc() const { return getLocation(); }
3034 
3035  /// Returns the location of the \c namespace keyword.
3036  SourceLocation getNamespaceLoc() const { return NamespaceLoc; }
3037 
3038  /// Returns the location of the identifier in the named namespace.
3039  SourceLocation getTargetNameLoc() const { return IdentLoc; }
3040 
3041  /// \brief Retrieve the namespace that this alias refers to, which
3042  /// may either be a NamespaceDecl or a NamespaceAliasDecl.
3043  NamedDecl *getAliasedNamespace() const { return Namespace; }
3044 
3045  SourceRange getSourceRange() const override LLVM_READONLY {
3046  return SourceRange(NamespaceLoc, IdentLoc);
3047  }
3048 
3049  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3050  static bool classofKind(Kind K) { return K == NamespaceAlias; }
3051 };
3052 
3053 /// \brief Represents a shadow declaration introduced into a scope by a
3054 /// (resolved) using declaration.
3055 ///
3056 /// For example,
3057 /// \code
3058 /// namespace A {
3059 /// void foo();
3060 /// }
3061 /// namespace B {
3062 /// using A::foo; // <- a UsingDecl
3063 /// // Also creates a UsingShadowDecl for A::foo() in B
3064 /// }
3065 /// \endcode
3066 class UsingShadowDecl : public NamedDecl, public Redeclarable<UsingShadowDecl> {
3067  friend class UsingDecl;
3068 
3069  /// The referenced declaration.
3070  NamedDecl *Underlying = nullptr;
3071 
3072  /// \brief The using declaration which introduced this decl or the next using
3073  /// shadow declaration contained in the aforementioned using declaration.
3074  NamedDecl *UsingOrNextShadow = nullptr;
3075 
3076  void anchor() override;
3077 
3079 
3080  UsingShadowDecl *getNextRedeclarationImpl() override {
3081  return getNextRedeclaration();
3082  }
3083 
3084  UsingShadowDecl *getPreviousDeclImpl() override {
3085  return getPreviousDecl();
3086  }
3087 
3088  UsingShadowDecl *getMostRecentDeclImpl() override {
3089  return getMostRecentDecl();
3090  }
3091 
3092 protected:
3094  UsingDecl *Using, NamedDecl *Target);
3096 
3097 public:
3098  friend class ASTDeclReader;
3099  friend class ASTDeclWriter;
3100 
3102  SourceLocation Loc, UsingDecl *Using,
3103  NamedDecl *Target) {
3104  return new (C, DC) UsingShadowDecl(UsingShadow, C, DC, Loc, Using, Target);
3105  }
3106 
3107  static UsingShadowDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3108 
3110  using redecl_iterator = redeclarable_base::redecl_iterator;
3111 
3112  using redeclarable_base::redecls_begin;
3113  using redeclarable_base::redecls_end;
3114  using redeclarable_base::redecls;
3115  using redeclarable_base::getPreviousDecl;
3116  using redeclarable_base::getMostRecentDecl;
3117  using redeclarable_base::isFirstDecl;
3118 
3120  return getFirstDecl();
3121  }
3123  return getFirstDecl();
3124  }
3125 
3126  /// \brief Gets the underlying declaration which has been brought into the
3127  /// local scope.
3128  NamedDecl *getTargetDecl() const { return Underlying; }
3129 
3130  /// \brief Sets the underlying declaration which has been brought into the
3131  /// local scope.
3133  assert(ND && "Target decl is null!");
3134  Underlying = ND;
3136  }
3137 
3138  /// \brief Gets the using declaration to which this declaration is tied.
3139  UsingDecl *getUsingDecl() const;
3140 
3141  /// \brief The next using shadow declaration contained in the shadow decl
3142  /// chain of the using declaration which introduced this decl.
3144  return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow);
3145  }
3146 
3147  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3148  static bool classofKind(Kind K) {
3149  return K == Decl::UsingShadow || K == Decl::ConstructorUsingShadow;
3150  }
3151 };
3152 
3153 /// \brief Represents a shadow constructor declaration introduced into a
3154 /// class by a C++11 using-declaration that names a constructor.
3155 ///
3156 /// For example:
3157 /// \code
3158 /// struct Base { Base(int); };
3159 /// struct Derived {
3160 /// using Base::Base; // creates a UsingDecl and a ConstructorUsingShadowDecl
3161 /// };
3162 /// \endcode
3164  /// \brief If this constructor using declaration inherted the constructor
3165  /// from an indirect base class, this is the ConstructorUsingShadowDecl
3166  /// in the named direct base class from which the declaration was inherited.
3167  ConstructorUsingShadowDecl *NominatedBaseClassShadowDecl = nullptr;
3168 
3169  /// \brief If this constructor using declaration inherted the constructor
3170  /// from an indirect base class, this is the ConstructorUsingShadowDecl
3171  /// that will be used to construct the unique direct or virtual base class
3172  /// that receives the constructor arguments.
3173  ConstructorUsingShadowDecl *ConstructedBaseClassShadowDecl = nullptr;
3174 
3175  /// \brief \c true if the constructor ultimately named by this using shadow
3176  /// declaration is within a virtual base class subobject of the class that
3177  /// contains this declaration.
3178  unsigned IsVirtual : 1;
3179 
3181  UsingDecl *Using, NamedDecl *Target,
3182  bool TargetInVirtualBase)
3183  : UsingShadowDecl(ConstructorUsingShadow, C, DC, Loc, Using,
3184  Target->getUnderlyingDecl()),
3185  NominatedBaseClassShadowDecl(
3186  dyn_cast<ConstructorUsingShadowDecl>(Target)),
3187  ConstructedBaseClassShadowDecl(NominatedBaseClassShadowDecl),
3188  IsVirtual(TargetInVirtualBase) {
3189  // If we found a constructor that chains to a constructor for a virtual
3190  // base, we should directly call that virtual base constructor instead.
3191  // FIXME: This logic belongs in Sema.
3192  if (NominatedBaseClassShadowDecl &&
3193  NominatedBaseClassShadowDecl->constructsVirtualBase()) {
3194  ConstructedBaseClassShadowDecl =
3195  NominatedBaseClassShadowDecl->ConstructedBaseClassShadowDecl;
3196  IsVirtual = true;
3197  }
3198  }
3199 
3201  : UsingShadowDecl(ConstructorUsingShadow, C, Empty), IsVirtual(false) {}
3202 
3203  void anchor() override;
3204 
3205 public:
3206  friend class ASTDeclReader;
3207  friend class ASTDeclWriter;
3208 
3210  SourceLocation Loc,
3211  UsingDecl *Using, NamedDecl *Target,
3212  bool IsVirtual);
3213  static ConstructorUsingShadowDecl *CreateDeserialized(ASTContext &C,
3214  unsigned ID);
3215 
3216  /// Returns the parent of this using shadow declaration, which
3217  /// is the class in which this is declared.
3218  //@{
3219  const CXXRecordDecl *getParent() const {
3220  return cast<CXXRecordDecl>(getDeclContext());
3221  }
3223  return cast<CXXRecordDecl>(getDeclContext());
3224  }
3225  //@}
3226 
3227  /// \brief Get the inheriting constructor declaration for the direct base
3228  /// class from which this using shadow declaration was inherited, if there is
3229  /// one. This can be different for each redeclaration of the same shadow decl.
3231  return NominatedBaseClassShadowDecl;
3232  }
3233 
3234  /// \brief Get the inheriting constructor declaration for the base class
3235  /// for which we don't have an explicit initializer, if there is one.
3237  return ConstructedBaseClassShadowDecl;
3238  }
3239 
3240  /// \brief Get the base class that was named in the using declaration. This
3241  /// can be different for each redeclaration of this same shadow decl.
3242  CXXRecordDecl *getNominatedBaseClass() const;
3243 
3244  /// \brief Get the base class whose constructor or constructor shadow
3245  /// declaration is passed the constructor arguments.
3247  return cast<CXXRecordDecl>((ConstructedBaseClassShadowDecl
3248  ? ConstructedBaseClassShadowDecl
3249  : getTargetDecl())
3250  ->getDeclContext());
3251  }
3252 
3253  /// \brief Returns \c true if the constructed base class is a virtual base
3254  /// class subobject of this declaration's class.
3255  bool constructsVirtualBase() const {
3256  return IsVirtual;
3257  }
3258 
3259  /// \brief Get the constructor or constructor template in the derived class
3260  /// correspnding to this using shadow declaration, if it has been implicitly
3261  /// declared already.
3262  CXXConstructorDecl *getConstructor() const;
3263  void setConstructor(NamedDecl *Ctor);
3264 
3265  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3266  static bool classofKind(Kind K) { return K == ConstructorUsingShadow; }
3267 };
3268 
3269 /// \brief Represents a C++ using-declaration.
3270 ///
3271 /// For example:
3272 /// \code
3273 /// using someNameSpace::someIdentifier;
3274 /// \endcode
3275 class UsingDecl : public NamedDecl, public Mergeable<UsingDecl> {
3276  /// \brief The source location of the 'using' keyword itself.
3277  SourceLocation UsingLocation;
3278 
3279  /// \brief The nested-name-specifier that precedes the name.
3280  NestedNameSpecifierLoc QualifierLoc;
3281 
3282  /// \brief Provides source/type location info for the declaration name
3283  /// embedded in the ValueDecl base class.
3284  DeclarationNameLoc DNLoc;
3285 
3286  /// \brief The first shadow declaration of the shadow decl chain associated
3287  /// with this using declaration.
3288  ///
3289  /// The bool member of the pair store whether this decl has the \c typename
3290  /// keyword.
3291  llvm::PointerIntPair<UsingShadowDecl *, 1, bool> FirstUsingShadow;
3292 
3294  NestedNameSpecifierLoc QualifierLoc,
3295  const DeclarationNameInfo &NameInfo, bool HasTypenameKeyword)
3296  : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()),
3297  UsingLocation(UL), QualifierLoc(QualifierLoc),
3298  DNLoc(NameInfo.getInfo()), FirstUsingShadow(nullptr, HasTypenameKeyword) {
3299  }
3300 
3301  void anchor() override;
3302 
3303 public:
3304  friend class ASTDeclReader;
3305  friend class ASTDeclWriter;
3306 
3307  /// \brief Return the source location of the 'using' keyword.
3308  SourceLocation getUsingLoc() const { return UsingLocation; }
3309 
3310  /// \brief Set the source location of the 'using' keyword.
3311  void setUsingLoc(SourceLocation L) { UsingLocation = L; }
3312 
3313  /// \brief Retrieve the nested-name-specifier that qualifies the name,
3314  /// with source-location information.
3315  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3316 
3317  /// \brief Retrieve the nested-name-specifier that qualifies the name.
3319  return QualifierLoc.getNestedNameSpecifier();
3320  }
3321 
3323  return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
3324  }
3325 
3326  /// \brief Return true if it is a C++03 access declaration (no 'using').
3327  bool isAccessDeclaration() const { return UsingLocation.isInvalid(); }
3328 
3329  /// \brief Return true if the using declaration has 'typename'.
3330  bool hasTypename() const { return FirstUsingShadow.getInt(); }
3331 
3332  /// \brief Sets whether the using declaration has 'typename'.
3333  void setTypename(bool TN) { FirstUsingShadow.setInt(TN); }
3334 
3335  /// \brief Iterates through the using shadow declarations associated with
3336  /// this using declaration.
3338  /// \brief The current using shadow declaration.
3339  UsingShadowDecl *Current = nullptr;
3340 
3341  public:
3345  using iterator_category = std::forward_iterator_tag;
3347 
3348  shadow_iterator() = default;
3349  explicit shadow_iterator(UsingShadowDecl *C) : Current(C) {}
3350 
3351  reference operator*() const { return Current; }
3352  pointer operator->() const { return Current; }
3353 
3355  Current = Current->getNextUsingShadowDecl();
3356  return *this;
3357  }
3358 
3360  shadow_iterator tmp(*this);
3361  ++(*this);
3362  return tmp;
3363  }
3364 
3366  return x.Current == y.Current;
3367  }
3369  return x.Current != y.Current;
3370  }
3371  };
3372 
3373  using shadow_range = llvm::iterator_range<shadow_iterator>;
3374 
3376  return shadow_range(shadow_begin(), shadow_end());
3377  }
3378 
3380  return shadow_iterator(FirstUsingShadow.getPointer());
3381  }
3382 
3384 
3385  /// \brief Return the number of shadowed declarations associated with this
3386  /// using declaration.
3387  unsigned shadow_size() const {
3388  return std::distance(shadow_begin(), shadow_end());
3389  }
3390 
3391  void addShadowDecl(UsingShadowDecl *S);
3392  void removeShadowDecl(UsingShadowDecl *S);
3393 
3394  static UsingDecl *Create(ASTContext &C, DeclContext *DC,
3395  SourceLocation UsingL,
3396  NestedNameSpecifierLoc QualifierLoc,
3397  const DeclarationNameInfo &NameInfo,
3398  bool HasTypenameKeyword);
3399 
3400  static UsingDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3401 
3402  SourceRange getSourceRange() const override LLVM_READONLY;
3403 
3404  /// Retrieves the canonical declaration of this declaration.
3405  UsingDecl *getCanonicalDecl() override { return getFirstDecl(); }
3406  const UsingDecl *getCanonicalDecl() const { return getFirstDecl(); }
3407 
3408  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3409  static bool classofKind(Kind K) { return K == Using; }
3410 };
3411 
3412 /// Represents a pack of using declarations that a single
3413 /// using-declarator pack-expanded into.
3414 ///
3415 /// \code
3416 /// template<typename ...T> struct X : T... {
3417 /// using T::operator()...;
3418 /// using T::operator T...;
3419 /// };
3420 /// \endcode
3421 ///
3422 /// In the second case above, the UsingPackDecl will have the name
3423 /// 'operator T' (which contains an unexpanded pack), but the individual
3424 /// UsingDecls and UsingShadowDecls will have more reasonable names.
3425 class UsingPackDecl final
3426  : public NamedDecl, public Mergeable<UsingPackDecl>,
3427  private llvm::TrailingObjects<UsingPackDecl, NamedDecl *> {
3428  /// The UnresolvedUsingValueDecl or UnresolvedUsingTypenameDecl from
3429  /// which this waas instantiated.
3430  NamedDecl *InstantiatedFrom;
3431 
3432  /// The number of using-declarations created by this pack expansion.
3433  unsigned NumExpansions;
3434 
3435  UsingPackDecl(DeclContext *DC, NamedDecl *InstantiatedFrom,
3436  ArrayRef<NamedDecl *> UsingDecls)
3437  : NamedDecl(UsingPack, DC,
3438  InstantiatedFrom ? InstantiatedFrom->getLocation()
3439  : SourceLocation(),
3440  InstantiatedFrom ? InstantiatedFrom->getDeclName()
3441  : DeclarationName()),
3442  InstantiatedFrom(InstantiatedFrom), NumExpansions(UsingDecls.size()) {
3443  std::uninitialized_copy(UsingDecls.begin(), UsingDecls.end(),
3444  getTrailingObjects<NamedDecl *>());
3445  }
3446 
3447  void anchor() override;
3448 
3449 public:
3450  friend class ASTDeclReader;
3451  friend class ASTDeclWriter;
3453 
3454  /// Get the using declaration from which this was instantiated. This will
3455  /// always be an UnresolvedUsingValueDecl or an UnresolvedUsingTypenameDecl
3456  /// that is a pack expansion.
3457  NamedDecl *getInstantiatedFromUsingDecl() const { return InstantiatedFrom; }
3458 
3459  /// Get the set of using declarations that this pack expanded into. Note that
3460  /// some of these may still be unresolved.
3462  return llvm::makeArrayRef(getTrailingObjects<NamedDecl *>(), NumExpansions);
3463  }
3464 
3465  static UsingPackDecl *Create(ASTContext &C, DeclContext *DC,
3466  NamedDecl *InstantiatedFrom,
3467  ArrayRef<NamedDecl *> UsingDecls);
3468 
3469  static UsingPackDecl *CreateDeserialized(ASTContext &C, unsigned ID,
3470  unsigned NumExpansions);
3471 
3472  SourceRange getSourceRange() const override LLVM_READONLY {
3473  return InstantiatedFrom->getSourceRange();
3474  }
3475 
3476  UsingPackDecl *getCanonicalDecl() override { return getFirstDecl(); }
3477  const UsingPackDecl *getCanonicalDecl() const { return getFirstDecl(); }
3478 
3479  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3480  static bool classofKind(Kind K) { return K == UsingPack; }
3481 };
3482 
3483 /// \brief Represents a dependent using declaration which was not marked with
3484 /// \c typename.
3485 ///
3486 /// Unlike non-dependent using declarations, these *only* bring through
3487 /// non-types; otherwise they would break two-phase lookup.
3488 ///
3489 /// \code
3490 /// template <class T> class A : public Base<T> {
3491 /// using Base<T>::foo;
3492 /// };
3493 /// \endcode
3495  public Mergeable<UnresolvedUsingValueDecl> {
3496  /// \brief The source location of the 'using' keyword
3497  SourceLocation UsingLocation;
3498 
3499  /// \brief If this is a pack expansion, the location of the '...'.
3500  SourceLocation EllipsisLoc;
3501 
3502  /// \brief The nested-name-specifier that precedes the name.
3503  NestedNameSpecifierLoc QualifierLoc;
3504 
3505  /// \brief Provides source/type location info for the declaration name
3506  /// embedded in the ValueDecl base class.
3507  DeclarationNameLoc DNLoc;
3508 
3510  SourceLocation UsingLoc,
3511  NestedNameSpecifierLoc QualifierLoc,
3512  const DeclarationNameInfo &NameInfo,
3513  SourceLocation EllipsisLoc)
3514  : ValueDecl(UnresolvedUsingValue, DC,
3515  NameInfo.getLoc(), NameInfo.getName(), Ty),
3516  UsingLocation(UsingLoc), EllipsisLoc(EllipsisLoc),
3517  QualifierLoc(QualifierLoc), DNLoc(NameInfo.getInfo()) {}
3518 
3519  void anchor() override;
3520 
3521 public:
3522  friend class ASTDeclReader;
3523  friend class ASTDeclWriter;
3524 
3525  /// \brief Returns the source location of the 'using' keyword.
3526  SourceLocation getUsingLoc() const { return UsingLocation; }
3527 
3528  /// \brief Set the source location of the 'using' keyword.
3529  void setUsingLoc(SourceLocation L) { UsingLocation = L; }
3530 
3531  /// \brief Return true if it is a C++03 access declaration (no 'using').
3532  bool isAccessDeclaration() const { return UsingLocation.isInvalid(); }
3533 
3534  /// \brief Retrieve the nested-name-specifier that qualifies the name,
3535  /// with source-location information.
3536  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3537 
3538  /// \brief Retrieve the nested-name-specifier that qualifies the name.
3540  return QualifierLoc.getNestedNameSpecifier();
3541  }
3542 
3544  return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
3545  }
3546 
3547  /// \brief Determine whether this is a pack expansion.
3548  bool isPackExpansion() const {
3549  return EllipsisLoc.isValid();
3550  }
3551 
3552  /// \brief Get the location of the ellipsis if this is a pack expansion.
3554  return EllipsisLoc;
3555  }
3556 
3557  static UnresolvedUsingValueDecl *
3558  Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
3559  NestedNameSpecifierLoc QualifierLoc,
3560  const DeclarationNameInfo &NameInfo, SourceLocation EllipsisLoc);
3561 
3562  static UnresolvedUsingValueDecl *
3563  CreateDeserialized(ASTContext &C, unsigned ID);
3564 
3565  SourceRange getSourceRange() const override LLVM_READONLY;
3566 
3567  /// Retrieves the canonical declaration of this declaration.
3569  return getFirstDecl();
3570  }
3572  return getFirstDecl();
3573  }
3574 
3575  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3576  static bool classofKind(Kind K) { return K == UnresolvedUsingValue; }
3577 };
3578 
3579 /// \brief Represents a dependent using declaration which was marked with
3580 /// \c typename.
3581 ///
3582 /// \code
3583 /// template <class T> class A : public Base<T> {
3584 /// using typename Base<T>::foo;
3585 /// };
3586 /// \endcode
3587 ///
3588 /// The type associated with an unresolved using typename decl is
3589 /// currently always a typename type.
3591  : public TypeDecl,
3592  public Mergeable<UnresolvedUsingTypenameDecl> {
3593  friend class ASTDeclReader;
3594 
3595  /// \brief The source location of the 'typename' keyword
3596  SourceLocation TypenameLocation;
3597 
3598  /// \brief If this is a pack expansion, the location of the '...'.
3599  SourceLocation EllipsisLoc;
3600 
3601  /// \brief The nested-name-specifier that precedes the name.
3602  NestedNameSpecifierLoc QualifierLoc;
3603 
3605  SourceLocation TypenameLoc,
3606  NestedNameSpecifierLoc QualifierLoc,
3607  SourceLocation TargetNameLoc,
3608  IdentifierInfo *TargetName,
3609  SourceLocation EllipsisLoc)
3610  : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName,
3611  UsingLoc),
3612  TypenameLocation(TypenameLoc), EllipsisLoc(EllipsisLoc),
3613  QualifierLoc(QualifierLoc) {}
3614 
3615  void anchor() override;
3616 
3617 public:
3618  /// \brief Returns the source location of the 'using' keyword.
3619  SourceLocation getUsingLoc() const { return getLocStart(); }
3620 
3621  /// \brief Returns the source location of the 'typename' keyword.
3622  SourceLocation getTypenameLoc() const { return TypenameLocation; }
3623 
3624  /// \brief Retrieve the nested-name-specifier that qualifies the name,
3625  /// with source-location information.
3626  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3627 
3628  /// \brief Retrieve the nested-name-specifier that qualifies the name.
3630  return QualifierLoc.getNestedNameSpecifier();
3631  }
3632 
3634  return DeclarationNameInfo(getDeclName(), getLocation());
3635  }
3636 
3637  /// \brief Determine whether this is a pack expansion.
3638  bool isPackExpansion() const {
3639  return EllipsisLoc.isValid();
3640  }
3641 
3642  /// \brief Get the location of the ellipsis if this is a pack expansion.
3644  return EllipsisLoc;
3645  }
3646 
3648  Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
3649  SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc,
3650  SourceLocation TargetNameLoc, DeclarationName TargetName,
3651  SourceLocation EllipsisLoc);
3652 
3654  CreateDeserialized(ASTContext &C, unsigned ID);
3655 
3656  /// Retrieves the canonical declaration of this declaration.
3658  return getFirstDecl();
3659  }
3661  return getFirstDecl();
3662  }
3663 
3664  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3665  static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; }
3666 };
3667 
3668 /// \brief Represents a C++11 static_assert declaration.
3669 class StaticAssertDecl : public Decl {
3670  llvm::PointerIntPair<Expr *, 1, bool> AssertExprAndFailed;
3671  StringLiteral *Message;
3672  SourceLocation RParenLoc;
3673 
3674  StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc,
3675  Expr *AssertExpr, StringLiteral *Message,
3676  SourceLocation RParenLoc, bool Failed)
3677  : Decl(StaticAssert, DC, StaticAssertLoc),
3678  AssertExprAndFailed(AssertExpr, Failed), Message(Message),
3679  RParenLoc(RParenLoc) {}
3680 
3681  virtual void anchor();
3682 
3683 public:
3684  friend class ASTDeclReader;
3685 
3687  SourceLocation StaticAssertLoc,
3688  Expr *AssertExpr, StringLiteral *Message,
3689  SourceLocation RParenLoc, bool Failed);
3690  static StaticAssertDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3691 
3692  Expr *getAssertExpr() { return AssertExprAndFailed.getPointer(); }
3693  const Expr *getAssertExpr() const { return AssertExprAndFailed.getPointer(); }
3694 
3695  StringLiteral *getMessage() { return Message; }
3696  const StringLiteral *getMessage() const { return Message; }
3697 
3698  bool isFailed() const { return AssertExprAndFailed.getInt(); }
3699 
3700  SourceLocation getRParenLoc() const { return RParenLoc; }
3701 
3702  SourceRange getSourceRange() const override LLVM_READONLY {
3703  return SourceRange(getLocation(), getRParenLoc());
3704  }
3705 
3706  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3707  static bool classofKind(Kind K) { return K == StaticAssert; }
3708 };
3709 
3710 /// A binding in a decomposition declaration. For instance, given:
3711 ///
3712 /// int n[3];
3713 /// auto &[a, b, c] = n;
3714 ///
3715 /// a, b, and c are BindingDecls, whose bindings are the expressions
3716 /// x[0], x[1], and x[2] respectively, where x is the implicit
3717 /// DecompositionDecl of type 'int (&)[3]'.
3718 class BindingDecl : public ValueDecl {
3719  /// The binding represented by this declaration. References to this
3720  /// declaration are effectively equivalent to this expression (except
3721  /// that it is only evaluated once at the point of declaration of the
3722  /// binding).
3723  Expr *Binding = nullptr;
3724 
3726  : ValueDecl(Decl::Binding, DC, IdLoc, Id, QualType()) {}
3727 
3728  void anchor() override;
3729 
3730 public:
3731  friend class ASTDeclReader;
3732 
3733  static BindingDecl *Create(ASTContext &C, DeclContext *DC,
3734  SourceLocation IdLoc, IdentifierInfo *Id);
3735  static BindingDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3736 
3737  /// Get the expression to which this declaration is bound. This may be null
3738  /// in two different cases: while parsing the initializer for the
3739  /// decomposition declaration, and when the initializer is type-dependent.
3740  Expr *getBinding() const { return Binding; }
3741 
3742  /// Get the variable (if any) that holds the value of evaluating the binding.
3743  /// Only present for user-defined bindings for tuple-like types.
3744  VarDecl *getHoldingVar() const;
3745 
3746  /// Set the binding for this BindingDecl, along with its declared type (which
3747  /// should be a possibly-cv-qualified form of the type of the binding, or a
3748  /// reference to such a type).
3749  void setBinding(QualType DeclaredType, Expr *Binding) {
3750  setType(DeclaredType);
3751  this->Binding = Binding;
3752  }
3753 
3754  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3755  static bool classofKind(Kind K) { return K == Decl::Binding; }
3756 };
3757 
3758 /// A decomposition declaration. For instance, given:
3759 ///
3760 /// int n[3];
3761 /// auto &[a, b, c] = n;
3762 ///
3763 /// the second line declares a DecompositionDecl of type 'int (&)[3]', and
3764 /// three BindingDecls (named a, b, and c). An instance of this class is always
3765 /// unnamed, but behaves in almost all other respects like a VarDecl.
3767  : public VarDecl,
3768  private llvm::TrailingObjects<DecompositionDecl, BindingDecl *> {
3769  /// The number of BindingDecl*s following this object.
3770  unsigned NumBindings;
3771 
3773  SourceLocation LSquareLoc, QualType T,
3774  TypeSourceInfo *TInfo, StorageClass SC,
3775  ArrayRef<BindingDecl *> Bindings)
3776  : VarDecl(Decomposition, C, DC, StartLoc, LSquareLoc, nullptr, T, TInfo,
3777  SC),
3778  NumBindings(Bindings.size()) {
3779  std::uninitialized_copy(Bindings.begin(), Bindings.end(),
3780  getTrailingObjects<BindingDecl *>());
3781  }
3782 
3783  void anchor() override;
3784 
3785 public:
3786  friend class ASTDeclReader;
3788 
3790  SourceLocation StartLoc,
3791  SourceLocation LSquareLoc,
3792  QualType T, TypeSourceInfo *TInfo,
3793  StorageClass S,
3794  ArrayRef<BindingDecl *> Bindings);
3795  static DecompositionDecl *CreateDeserialized(ASTContext &C, unsigned ID,
3796  unsigned NumBindings);
3797 
3799  return llvm::makeArrayRef(getTrailingObjects<BindingDecl *>(), NumBindings);
3800  }
3801 
3802  void printName(raw_ostream &os) const override;
3803 
3804  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3805  static bool classofKind(Kind K) { return K == Decomposition; }
3806 };
3807 
3808 /// An instance of this class represents the declaration of a property
3809 /// member. This is a Microsoft extension to C++, first introduced in
3810 /// Visual Studio .NET 2003 as a parallel to similar features in C#
3811 /// and Managed C++.
3812 ///
3813 /// A property must always be a non-static class member.
3814 ///
3815 /// A property member superficially resembles a non-static data
3816 /// member, except preceded by a property attribute:
3817 /// __declspec(property(get=GetX, put=PutX)) int x;
3818 /// Either (but not both) of the 'get' and 'put' names may be omitted.
3819 ///
3820 /// A reference to a property is always an lvalue. If the lvalue
3821 /// undergoes lvalue-to-rvalue conversion, then a getter name is
3822 /// required, and that member is called with no arguments.
3823 /// If the lvalue is assigned into, then a setter name is required,
3824 /// and that member is called with one argument, the value assigned.
3825 /// Both operations are potentially overloaded. Compound assignments
3826 /// are permitted, as are the increment and decrement operators.
3827 ///
3828 /// The getter and putter methods are permitted to be overloaded,
3829 /// although their return and parameter types are subject to certain
3830 /// restrictions according to the type of the property.
3831 ///
3832 /// A property declared using an incomplete array type may
3833 /// additionally be subscripted, adding extra parameters to the getter
3834 /// and putter methods.
3836  IdentifierInfo *GetterId, *SetterId;
3837 
3839  QualType T, TypeSourceInfo *TInfo, SourceLocation StartL,
3840  IdentifierInfo *Getter, IdentifierInfo *Setter)
3841  : DeclaratorDecl(MSProperty, DC, L, N, T, TInfo, StartL),
3842  GetterId(Getter), SetterId(Setter) {}
3843 
3844 public:
3845  friend class ASTDeclReader;
3846 
3847  static MSPropertyDecl *Create(ASTContext &C, DeclContext *DC,
3849  TypeSourceInfo *TInfo, SourceLocation StartL,
3850  IdentifierInfo *Getter, IdentifierInfo *Setter);
3851  static MSPropertyDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3852 
3853  static bool classof(const Decl *D) { return D->getKind() == MSProperty; }
3854 
3855  bool hasGetter() const { return GetterId != nullptr; }
3856  IdentifierInfo* getGetterId() const { return GetterId; }
3857  bool hasSetter() const { return SetterId != nullptr; }
3858  IdentifierInfo* getSetterId() const { return SetterId; }
3859 };
3860 
3861 /// Insertion operator for diagnostics. This allows sending an AccessSpecifier
3862 /// into a diagnostic with <<.
3864  AccessSpecifier AS);
3865 
3867  AccessSpecifier AS);
3868 
3869 } // namespace clang
3870 
3871 #endif // LLVM_CLANG_AST_DECLCXX_H
const CXXRecordDecl * getPreviousDecl() const
Definition: DeclCXX.h:718
bool isBaseInitializer() const
Determine whether this initializer is initializing a base class.
Definition: DeclCXX.h:2238
SourceLocation getLoc() const
getLoc - Returns the main location of the declaration name.
void setSourceOrder(int Pos)
Set the source order of this initializer.
Definition: DeclCXX.h:2352
Defines the clang::ASTContext interface.
NamedDecl * getTargetDecl() const
Gets the underlying declaration which has been brought into the local scope.
Definition: DeclCXX.h:3128
static const Decl * getCanonicalDecl(const Decl *D)
FunctionDecl - An instance of this class is created to represent a function declaration or definition...
Definition: Decl.h:1698
Expr * getInit() const
Get the initializer.
Definition: DeclCXX.h:2367
llvm::iterator_range< redecl_iterator > redecl_range
Definition: DeclBase.h:932
A (possibly-)qualified type.
Definition: Type.h:653
unsigned getNumCtorInitializers() const
Determine the number of arguments used to initialize the member or base.
Definition: DeclCXX.h:2495
bool hasUninitializedReferenceMember() const
Whether this class or any of its subobjects has any members of reference type which would make value-...
Definition: DeclCXX.h:1251
bool isStandardLayout() const
Determine whether this class has standard layout per (C++ [class]p7)
Definition: DeclCXX.h:1300
base_class_range bases()
Definition: DeclCXX.h:773
static bool classof(const Decl *D)
Definition: DeclCXX.h:3575
const CXXMethodDecl *const * method_iterator
Definition: DeclCXX.h:2073
const DeclarationNameLoc & getInfo() const
unsigned getNumBases() const
Retrieves the number of base classes of this class.
Definition: DeclCXX.h:767
SourceLocation getEllipsisLoc() const
Get the location of the ellipsis if this is a pack expansion.
Definition: DeclCXX.h:3553
SourceLocation getLParenLoc() const
Definition: DeclCXX.h:2363
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:26
static bool classof(const Decl *D)
Definition: DeclCXX.h:2821
Iterates through the using shadow declarations associated with this using declaration.
Definition: DeclCXX.h:3337
Stmt - This represents one statement.
Definition: Stmt.h:66
static bool classofKind(Kind K)
Definition: DeclCXX.h:3148
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3065
bool isInClassMemberInitializer() const
Determine whether this initializer is an implicit initializer generated for a field with an initializ...
Definition: DeclCXX.h:2260
static bool classof(const Decl *D)
Definition: DeclCXX.h:2733
unsigned getNumVBases() const
Retrieves the number of virtual base classes of this class.
Definition: DeclCXX.h:788
C Language Family Type Representation.
bool hasNonTrivialCopyConstructor() const
Determine whether this class has a non-trivial copy constructor (C++ [class.copy]p6, C++11 [class.copy]p12)
Definition: DeclCXX.h:1354
bool allowConstDefaultInit() const
Determine whether declaring a const variable with this type is ok per core issue 253.
Definition: DeclCXX.h:1416
static TemplateSpecializationKind getTemplateSpecializationKind(Decl *D)
Determine what kind of template specialization the given declaration is.
bool hasIrrelevantDestructor() const
Determine whether this class has a destructor which has no semantic effect.
Definition: DeclCXX.h:1427
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:86
bool needsOverloadResolutionForDestructor() const
Determine whether we need to eagerly declare a destructor for this class.
Definition: DeclCXX.h:1147
void setAccessSpecifierLoc(SourceLocation ASLoc)
Sets the location of the access specifier.
Definition: DeclCXX.h:150
IdentifierInfo * getGetterId() const
Definition: DeclCXX.h:3856
bool isVirtual() const
Definition: DeclCXX.h:2009
LambdaCaptureDefault
The default, if any, capture method for a lambda expression.
Definition: Lambda.h:23
bool isVirtual() const
Determines whether the base class is a virtual base class (or not).
Definition: DeclCXX.h:244
bool hasUserDeclaredCopyAssignment() const
Determine whether this class has a user-declared copy assignment operator.
Definition: DeclCXX.h:1059
init_const_reverse_iterator init_rend() const
Definition: DeclCXX.h:2489
shadow_iterator shadow_end() const
Definition: DeclCXX.h:3383
bool isPOD() const
Whether this class is a POD-type (C++ [class]p4)
Definition: DeclCXX.h:1264
bool isWritten() const
Determine whether this initializer is explicitly written in the source code.
Definition: DeclCXX.h:2337
StringRef P
void setPure(bool P=true)
Definition: Decl.cpp:2621
init_reverse_iterator init_rend()
Definition: DeclCXX.h:2486
bool isPackExpansion() const
Determine whether this is a pack expansion.
Definition: DeclCXX.h:3638
const DiagnosticBuilder & operator<<(const DiagnosticBuilder &DB, const Attr *At)
Definition: Attr.h:195
SourceLocation getColonLoc() const
The location of the colon following the access specifier.
Definition: DeclCXX.h:153
The base class of the type hierarchy.
Definition: Type.h:1360
static bool classof(const Decl *D)
Definition: DeclCXX.h:3408
Expr * getOperatorDeleteThisArg() const
Definition: DeclCXX.h:2656
const CXXMethodDecl * getDevirtualizedMethod(const Expr *Base, bool IsAppleKext) const
Definition: DeclCXX.h:2028
NamespaceDecl - Represent a C++ namespace.
Definition: Decl.h:506
std::reverse_iterator< init_iterator > init_reverse_iterator
Definition: DeclCXX.h:2475
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name of the namespace.
Definition: DeclCXX.h:2892
const NamedDecl * getNominatedNamespaceAsWritten() const
Definition: DeclCXX.h:2897
bool hasTrivialMoveConstructor() const
Determine whether this class has a trivial move constructor (C++11 [class.copy]p12) ...
Definition: DeclCXX.h:1361
AccessSpecifier
A C++ access specifier (public, private, protected), plus the special value "none" which means differ...
Definition: Specifiers.h:95
const NestedNameSpecifier * Specifier
A container of type source information.
Definition: Decl.h:86
bool hasConstexprNonCopyMoveConstructor() const
Determine whether this class has at least one constexpr constructor other than the copy or move const...
Definition: DeclCXX.h:1326
capture_const_range captures() const
Definition: DeclCXX.h:1200
static bool classof(const Decl *D)
Definition: DeclCXX.h:1956
base_class_const_iterator vbases_end() const
Definition: DeclCXX.h:800
bool needsImplicitMoveAssignment() const
Determine whether this class should get an implicit move assignment operator or if any existing speci...
Definition: DeclCXX.h:1114
QualType getConversionType() const
Returns the type that this conversion function is converting to.
Definition: DeclCXX.h:2717
static bool classofKind(Kind K)
Definition: DeclCXX.h:3050
bool hasFriends() const
Determines whether this record has any friends.
Definition: DeclCXX.h:856
Describes the capture of a variable or of this, or of a C++1y init-capture.
Definition: LambdaCapture.h:26
Represents a path from a specific derived class (which is not represented as part of the path) to a p...
bool hasUserDeclaredMoveOperation() const
Whether this class has a user-declared move constructor or assignment operator.
Definition: DeclCXX.h:995
unsigned getIdentifierNamespace() const
Definition: DeclBase.h:791
static bool classof(const Decl *D)
Definition: DeclCXX.h:3754
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2397
bool implicitCopyAssignmentHasConstParam() const
Determine whether an implicit copy assignment operator for this type would have a parameter with a co...
Definition: DeclCXX.h:1077
float __ovld __cnfn distance(float p0, float p1)
Returns the distance between p0 and p1.
bool isVirtualAsWritten() const
Whether this function is marked as virtual explicitly.
Definition: Decl.h:1988
bool needsOverloadResolutionForCopyConstructor() const
Determine whether we need to eagerly declare a defaulted copy constructor for this class...
Definition: DeclCXX.h:961
bool isPackExpansion() const
Determine whether this initializer is a pack expansion.
Definition: DeclCXX.h:2271
SourceLocation getTargetNameLoc() const
Returns the location of the identifier in the named namespace.
Definition: DeclCXX.h:3039
friend bool operator!=(shadow_iterator x, shadow_iterator y)
Definition: DeclCXX.h:3368
bool isIndirectMemberInitializer() const
Definition: DeclCXX.h:2250
const Expr * getAssertExpr() const
Definition: DeclCXX.h:3693
FriendDecl - Represents the declaration of a friend entity, which can be a function, a type, or a templated function or type.
Definition: DeclFriend.h:54
VarDecl - An instance of this class is created to represent a variable declaration or definition...
Definition: Decl.h:807
static bool classof(const Decl *D)
Definition: DeclCXX.h:1895
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6315
bool needsImplicitCopyAssignment() const
Determine whether this class needs an implicit copy assignment operator to be lazily declared...
Definition: DeclCXX.h:1065
NamedDecl * getUnderlyingDecl()
Looks through UsingDecls and ObjCCompatibleAliasDecls for the underlying named decl.
Definition: Decl.h:423
bool hasTrivialDefaultConstructor() const
Determine whether this class has a trivial default constructor (C++11 [class.ctor]p5).
Definition: DeclCXX.h:1311
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:50
bool isMemberInitializer() const
Determine whether this initializer is initializing a non-static data member.
Definition: DeclCXX.h:2244
SourceLocation getEllipsisLoc() const
Definition: DeclCXX.h:2276
bool hasDefinition() const
Definition: DeclCXX.h:738
UsingShadowDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3119
static AccessSpecDecl * Create(ASTContext &C, AccessSpecifier AS, DeclContext *DC, SourceLocation ASLoc, SourceLocation ColonLoc)
Definition: DeclCXX.h:162
Represents any kind of function declaration, whether it is a concrete function or a function template...
Definition: DeclCXX.h:77
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3543
bool isExplicitSpecified() const
Whether this function is marked as explicit explicitly.
Definition: DeclCXX.h:2508
SourceLocation getRParenLoc() const
Definition: DeclCXX.h:2364
reference operator*() const
Definition: DeclCXX.h:3351
bool isExplicitSpecified() const
Whether this deduction guide was declared with the &#39;explicit&#39; specifier.
Definition: DeclCXX.h:1942
static bool classof(const Decl *D)
Definition: DeclCXX.h:3706
An UnresolvedSet-like class that might not have been loaded from the external AST source yet...
const FunctionDecl * isLocalClass() const
If the class is a local class [class.local], returns the enclosing function declaration.
Definition: DeclCXX.h:1572
bool hasNonTrivialDefaultConstructor() const
Determine whether this class has a non-trivial default constructor (C++11 [class.ctor]p5).
Definition: DeclCXX.h:1318
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:40
RecordDecl - Represents a struct/union/class.
Definition: Decl.h:3482
LanguageIDs getLanguage() const
Return the language specified by this linkage specification.
Definition: DeclCXX.h:2789
An iterator over the friend declarations of a class.
Definition: DeclFriend.h:188
bool isEmpty() const
Determine whether this is an empty class in the sense of (C++11 [meta.unary.prop]).
Definition: DeclCXX.h:1279
Description of a constructor that was inherited from a base class.
Definition: DeclCXX.h:2371
DeclarationName getDeclName() const
getDeclName - Get the actual, stored name of the declaration, which may be a special name...
Definition: Decl.h:291
Provides common interface for the Decls that can be redeclared.
Definition: Redeclarable.h:87
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclCXX.h:2809
One of these records is kept for each identifier that is lexed.
CXXRecordDecl * getParent()
Returns the parent of this method declaration, which is the class in which this method is defined...
Definition: DeclCXX.h:2091
bool isConst() const
Definition: DeclCXX.h:2006
StringLiteral * getMessage()
Definition: DeclCXX.h:3695
static bool classof(const Decl *D)
Definition: DeclCXX.h:2936
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:2932
CXXRecordDecl * getPreviousDecl()
Definition: DeclCXX.h:713
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:128
A C++ nested-name-specifier augmented with source location information.
SourceLocation getColonLoc() const
Returns the location of &#39;:&#39;.
NamespaceDecl * getNamespace()
Retrieve the namespace declaration aliased by this directive.
Definition: DeclCXX.h:3020
static bool classofKind(Kind K)
Definition: DeclCXX.h:3576
bool defaultedDefaultConstructorIsConstexpr() const
Determine whether a defaulted default constructor for this class would be constexpr.
Definition: DeclCXX.h:1334
void setLanguage(LanguageIDs L)
Set the language specified by this linkage specification.
Definition: DeclCXX.h:2792
static bool classof(const Decl *D)
Definition: DeclCXX.h:3265
SourceLocation getLocStart() const LLVM_READONLY
Definition: DeclCXX.h:235
FieldDecl - An instance of this class is created by Sema::ActOnField to represent a member of a struc...
Definition: Decl.h:2461
bool isVolatile() const
Definition: DeclCXX.h:2007
TypeSourceInfo * getTypeSourceInfo() const
Returns the declarator information for a base class or delegating initializer.
Definition: DeclCXX.h:2299
llvm::iterator_range< capture_const_iterator > capture_const_range
Definition: DeclCXX.h:1198
conversion_iterator conversion_end() const
Definition: DeclCXX.h:1219
void startDefinition()
Starts the definition of this tag declaration.
Definition: Decl.cpp:3689
CXXMethodDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2046
bool isCopyOrMoveConstructor() const
Determine whether this a copy or move constructor.
Definition: DeclCXX.h:2573
static bool classofKind(Kind K)
Definition: DeclCXX.h:3409
bool hasTrivialMoveAssignment() const
Determine whether this class has a trivial move assignment operator (C++11 [class.copy]p25)
Definition: DeclCXX.h:1389
InheritedConstructor getInheritedConstructor() const
Get the constructor that this inheriting constructor is based on.
Definition: DeclCXX.h:2593
The iterator over UnresolvedSets.
Definition: UnresolvedSet.h:27
static NamespaceDecl * getNamespace(const NestedNameSpecifier *X)
virtual SourceRange getSourceRange() const LLVM_READONLY
Source range that this declaration covers.
Definition: DeclBase.h:404
static bool classof(const Decl *D)
Definition: DeclCXX.h:3049
FieldDecl * getAnonField() const
Definition: Decl.h:2735
bool hasUserDeclaredDestructor() const
Determine whether this class has a user-declared destructor.
Definition: DeclCXX.h:1135
unsigned getTypeQualifiers() const
Definition: DeclCXX.h:2104
method_iterator method_begin() const
Method begin iterator.
Definition: DeclCXX.h:821
static bool classofKind(Kind K)
Definition: DeclCXX.h:3266
Represents an access specifier followed by colon &#39;:&#39;.
Definition: DeclCXX.h:131
bool hasGetter() const
Definition: DeclCXX.h:3855
llvm::iterator_range< init_iterator > init_range
Definition: DeclCXX.h:2448
TypeSourceInfo * getLambdaTypeInfo() const
Definition: DeclCXX.h:1887
NamespaceAliasDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3002
llvm::iterator_range< friend_iterator > friend_range
Definition: DeclCXX.h:848
void setImplicitCopyConstructorIsDeleted()
Set that we attempted to declare an implicit copy constructor, but overload resolution failed so we d...
Definition: DeclCXX.h:1014
static bool classofKind(Kind K)
Definition: DeclCXX.h:3805
Represents a C++ using-declaration.
Definition: DeclCXX.h:3275
UnresolvedUsingValueDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3568
void setUsingLoc(SourceLocation L)
Set the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3311
ArrayRef< BindingDecl * > bindings() const
Definition: DeclCXX.h:3798
bool hasNonLiteralTypeFieldsOrBases() const
Determine whether this class has a non-literal or/ volatile type non-static data member or base class...
Definition: DeclCXX.h:1445
friend TrailingObjects
Definition: DeclCXX.h:3452
RefQualifierKind getRefQualifier() const
Retrieve the ref-qualifier associated with this method.
Definition: DeclCXX.h:2119
bool isDelegatingConstructor() const
Determine whether this constructor is a delegating constructor.
Definition: DeclCXX.h:2516
CXXMethodDecl(Kind DK, ASTContext &C, CXXRecordDecl *RD, SourceLocation StartLoc, const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo, StorageClass SC, bool isInline, bool isConstexpr, SourceLocation EndLocation)
Definition: DeclCXX.h:1968
bool isBaseVirtual() const
Returns whether the base is virtual or not.
Definition: DeclCXX.h:2291
bool hasMoveAssignment() const
Determine whether this class has a move assignment operator.
Definition: DeclCXX.h:1097
AccessSpecifier getAccessSpecifier() const
Returns the access specifier for this base specifier.
Definition: DeclCXX.h:271
bool getInheritConstructors() const
Determine whether this base class&#39;s constructors get inherited.
Definition: DeclCXX.h:254
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
bool needsOverloadResolutionForCopyAssignment() const
Determine whether we need to eagerly declare a defaulted copy assignment operator for this class...
Definition: DeclCXX.h:1071
NamedDecl * getNominatedNamespaceAsWritten()
Definition: DeclCXX.h:2896
FunctionDecl * isLocalClass()
Definition: DeclCXX.h:1579
static bool classof(const Decl *D)
Definition: DeclCXX.h:2668
TypeDecl - Represents a declaration of a type.
Definition: Decl.h:2754
void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl)
Set the mangling number and context declaration for a lambda class.
Definition: DeclCXX.h:1845
bool isAccessDeclaration() const
Return true if it is a C++03 access declaration (no &#39;using&#39;).
Definition: DeclCXX.h:3327
bool isLambda() const
Determine whether this class describes a lambda function object.
Definition: DeclCXX.h:1152
static DeclContext * castToDeclContext(const LinkageSpecDecl *D)
Definition: DeclCXX.h:2824
base_class_const_iterator bases_begin() const
Definition: DeclCXX.h:781
CXXRecordDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:705
llvm::iterator_range< init_const_iterator > init_const_range
Definition: DeclCXX.h:2449
CXXConversionDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2725
bool isAnyMemberInitializer() const
Definition: DeclCXX.h:2246
base_class_iterator bases_begin()
Definition: DeclCXX.h:780
SourceLocation getExternLoc() const
Definition: DeclCXX.h:2801
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclCXX.h:236
void setNumCtorInitializers(unsigned numCtorInitializers)
Definition: DeclCXX.h:2499
FieldDecl * getAnyMember() const
Definition: DeclCXX.h:2311
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
Definition: ExprCXX.h:1580
bool hasTrivialDestructor() const
Determine whether this class has a trivial destructor (C++ [class.dtor]p3)
Definition: DeclCXX.h:1404
bool isInstance() const
Definition: DeclCXX.h:1992
bool hasSimpleCopyConstructor() const
true if we know for sure that this class has a single, accessible, unambiguous copy constructor that ...
Definition: DeclCXX.h:888
FieldDecl * getMember() const
If this is a member initializer, returns the declaration of the non-static data member being initiali...
Definition: DeclCXX.h:2305
Represents a linkage specification.
Definition: DeclCXX.h:2743
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3702
shadow_iterator shadow_begin() const
Definition: DeclCXX.h:3379
bool hasConstexprDefaultConstructor() const
Determine whether this class has a constexpr default constructor.
Definition: DeclCXX.h:1340
bool isAbstract() const
Determine whether this class has a pure virtual function.
Definition: DeclCXX.h:1296
A binding in a decomposition declaration.
Definition: DeclCXX.h:3718
init_iterator init_begin()
Retrieve an iterator to the first initializer.
Definition: DeclCXX.h:2457
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3472
SourceLocation getRParenLoc() const
Definition: DeclCXX.h:3700
llvm::iterator_range< specific_decl_iterator< CXXConstructorDecl > > ctor_range
Definition: DeclCXX.h:833
bool hasBraces() const
Determines whether this linkage specification had braces in its syntactic form.
Definition: DeclCXX.h:2796
unsigned getLambdaManglingNumber() const
If this is the closure type of a lambda expression, retrieve the number to be used for name mangling ...
Definition: DeclCXX.h:1827
bool hasCopyAssignmentWithConstParam() const
Determine whether this class has a copy assignment operator with a parameter type which is a referenc...
Definition: DeclCXX.h:1084
CXXConstructorDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2598
bool hasUserProvidedDefaultConstructor() const
Whether this class has a user-provided default constructor per C++11.
Definition: DeclCXX.h:942
InheritedConstructor(ConstructorUsingShadowDecl *Shadow, CXXConstructorDecl *BaseCtor)
Definition: DeclCXX.h:2377
A placeholder type used to construct an empty shell of a decl-derived type that will be filled in lat...
Definition: DeclBase.h:102
CXXRecordDecl * getMostRecentDecl()
Definition: DeclCXX.h:722
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name of the namespace.
Definition: DeclCXX.h:3015
A little helper class used to produce diagnostics.
Definition: Diagnostic.h:953
init_const_range inits() const
Definition: DeclCXX.h:2452
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3277
bool isDynamicClass() const
Definition: DeclCXX.h:751
CXXDestructorDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2660
static bool classofKind(Kind K)
Definition: DeclCXX.h:3665
SourceLocation getTypenameLoc() const
Returns the source location of the &#39;typename&#39; keyword.
Definition: DeclCXX.h:3622
Represents a ValueDecl that came out of a declarator.
Definition: Decl.h:681
static bool classof(const Decl *D)
Definition: DeclCXX.h:3479
bool isDelegatingInitializer() const
Determine whether this initializer is creating a delegating constructor.
Definition: DeclCXX.h:2266
method_iterator end_overridden_methods() const
Definition: DeclCXX.cpp:1917
init_reverse_iterator init_rbegin()
Definition: DeclCXX.h:2479
std::forward_iterator_tag iterator_category
Definition: DeclCXX.h:3345
bool isLiteral() const
Determine whether this class is a literal type.
Definition: DeclCXX.h:1491
const CXXRecordDecl * getParent() const
Returns the parent of this using shadow declaration, which is the class in which this is declared...
Definition: DeclCXX.h:3219
CXXCtorInitializer *const * init_const_iterator
Iterates through the member/base initializer list.
Definition: DeclCXX.h:2446
bool hasInheritedConstructor() const
Determine whether this class has a using-declaration that names a user-declared base class constructo...
Definition: DeclCXX.h:1451
capture_const_iterator captures_end() const
Definition: DeclCXX.h:1208
static bool classof(const Decl *D)
Definition: DeclCXX.h:3664
static bool classofKind(Kind K)
Definition: DeclCXX.h:2937
const UnresolvedUsingValueDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3571
bool hasUserDeclaredCopyConstructor() const
Determine whether this class has a user-declared copy constructor.
Definition: DeclCXX.h:949
Represents a shadow constructor declaration introduced into a class by a C++11 using-declaration that...
Definition: DeclCXX.h:3163
ValueDecl - Represent the declaration of a variable (in which case it is an lvalue) a function (in wh...
Definition: Decl.h:628
Expr - This represents one expression.
Definition: Expr.h:106
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name, with source-location information.
Definition: DeclCXX.h:3315
Defines the clang::LangOptions interface.
const NamespaceDecl * getNominatedNamespace() const
Definition: DeclCXX.h:2904
SourceLocation getAliasLoc() const
Returns the location of the alias name, i.e.
Definition: DeclCXX.h:3033
ctor_iterator ctor_end() const
Definition: DeclCXX.h:841
const CXXConversionDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2728
static bool classofKind(Kind K)
Definition: DeclCXX.h:2822
int Id
Definition: ASTDiff.cpp:191
const FunctionProtoType * T
base_class_const_range bases() const
Definition: DeclCXX.h:776
bool defaultedMoveConstructorIsDeleted() const
true if a defaulted move constructor for this class would be deleted.
Definition: DeclCXX.h:871
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3322
CXXRecordDecl * getTemplateInstantiationPattern()
Definition: DeclCXX.h:1558
const CXXRecordDecl * getCanonicalDecl() const
Definition: DeclCXX.h:709
Represents a C++ destructor within a class.
Definition: DeclCXX.h:2620
init_const_reverse_iterator init_rbegin() const
Definition: DeclCXX.h:2482
bool isCopyConstructor() const
Whether this constructor is a copy constructor (C++ [class.copy]p2, which can be used to copy the cla...
Definition: DeclCXX.h:2547
const UsingDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3406
bool isCopyDeductionCandidate() const
Definition: DeclCXX.h:1953
Defines an enumeration for C++ overloaded operators.
void setRBraceLoc(SourceLocation L)
Definition: DeclCXX.h:2804
bool hasUserDeclaredMoveAssignment() const
Determine whether this class has had a move assignment declared by the user.
Definition: DeclCXX.h:1092
#define bool
Definition: stdbool.h:31
bool isPackExpansion() const
Determine whether this is a pack expansion.
Definition: DeclCXX.h:3548
CXXRecordDecl * getDefinition() const
Definition: DeclCXX.h:731
bool isExplicit() const
Whether this deduction guide is explicit.
Definition: DeclCXX.h:1939
base_class_iterator vbases_end()
Definition: DeclCXX.h:799
llvm::iterator_range< specific_decl_iterator< CXXMethodDecl > > method_range
Definition: DeclCXX.h:813
static TemplateParameterList * getGenericLambdaTemplateParameterList(LambdaScopeInfo *LSI, Sema &SemaRef)
Definition: SemaLambda.cpp:228
ConstructorUsingShadowDecl * getNominatedBaseClassShadowDecl() const
Get the inheriting constructor declaration for the direct base class from which this using shadow dec...
Definition: DeclCXX.h:3230
bool hasMoveConstructor() const
Determine whether this class has a move constructor.
Definition: DeclCXX.h:1007
const CXXConstructorDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2601
bool needsImplicitDestructor() const
Determine whether this class needs an implicit destructor to be lazily declared.
Definition: DeclCXX.h:1141
Defines the clang::TypeLoc interface and its subclasses.
bool isTrivial() const
Determine whether this class is considered trivial.
Definition: DeclCXX.h:1470
init_const_iterator init_end() const
Retrieve an iterator past the last initializer.
Definition: DeclCXX.h:2471
CXXRecordDecl * getConstructedBaseClass() const
Get the base class whose constructor or constructor shadow declaration is passed the constructor argu...
Definition: DeclCXX.h:3246
bool isPolymorphic() const
Whether this class is polymorphic (C++ [class.virtual]), which means that the class contains or inher...
Definition: DeclCXX.h:1289
const CXXMethodDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2049
void setInheritConstructors(bool Inherit=true)
Set that this base class&#39;s constructors should be inherited.
Definition: DeclCXX.h:257
StorageClass
Storage classes.
Definition: Specifiers.h:203
const UnresolvedUsingTypenameDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3660
bool hasNonTrivialDestructor() const
Determine whether this class has a non-trivial destructor (C++ [class.dtor]p3)
Definition: DeclCXX.h:1410
IdentifierInfo * getSetterId() const
Definition: DeclCXX.h:3858
void setTypename(bool TN)
Sets whether the using declaration has &#39;typename&#39;.
Definition: DeclCXX.h:3333
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition: DeclBase.h:1331
method_iterator method_end() const
Method past-the-end iterator.
Definition: DeclCXX.h:826
SourceLocation getEnd() const
static bool hasDefinition(const ObjCObjectPointerType *ObjPtr)
bool isBaseOfClass() const
Determine whether this base class is a base of a class declared with the &#39;class&#39; keyword (vs...
Definition: DeclCXX.h:248
bool hasSimpleMoveConstructor() const
true if we know for sure that this class has a single, accessible, unambiguous move constructor that ...
Definition: DeclCXX.h:895
bool hasTrivialCopyConstructor() const
Determine whether this class has a trivial copy constructor (C++ [class.copy]p6, C++11 [class...
Definition: DeclCXX.h:1348
Represents a C++ deduction guide declaration.
Definition: DeclCXX.h:1911
bool needsImplicitDefaultConstructor() const
Determine if we need to declare a default constructor for this class.
Definition: DeclCXX.h:924
Represents a C++ conversion function within a class.
Definition: DeclCXX.h:2682
bool hasNonTrivialMoveAssignment() const
Determine whether this class has a non-trivial move assignment operator (C++11 [class.copy]p25)
Definition: DeclCXX.h:1396
bool nullFieldOffsetIsZero() const
In the Microsoft C++ ABI, use zero for the field offset of a null data member pointer if we can guara...
Definition: DeclCXX.h:1862
UsingPackDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3476
llvm::function_ref< bool(const CXXBaseSpecifier *Specifier, CXXBasePath &Path)> BaseMatchesCallback
Function type used by lookupInBases() to determine whether a specific base class subobject matches th...
Definition: DeclCXX.h:1673
bool hasNonTrivialMoveConstructor() const
Determine whether this class has a non-trivial move constructor (C++11 [class.copy]p12) ...
Definition: DeclCXX.h:1368
CXXMethodDecl * getMostRecentDecl()
Definition: DeclCXX.h:2053
const CXXRecordDecl * getMostRecentDecl() const
Definition: DeclCXX.h:727
llvm::iterator_range< shadow_iterator > shadow_range
Definition: DeclCXX.h:3373
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name.
Definition: DeclCXX.h:3629
bool hasVariantMembers() const
Determine whether this class has any variant members.
Definition: DeclCXX.h:1307
bool isExplicit() const
Whether this function is explicit.
Definition: DeclCXX.h:2712
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3045
SourceLocation getUsingLoc() const
Return the location of the using keyword.
Definition: DeclCXX.h:2914
SourceLocation getUsingLoc() const
Returns the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3526
const UsingPackDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3477
void setColonLoc(SourceLocation CLoc)
Sets the location of the colon.
Definition: DeclCXX.h:156
#define false
Definition: stdbool.h:33
UnresolvedUsingTypenameDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3657
const NamespaceAliasDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3005
NamedDecl * getInstantiatedFromUsingDecl() const
Get the using declaration from which this was instantiated.
Definition: DeclCXX.h:3457
shadow_iterator(UsingShadowDecl *C)
Definition: DeclCXX.h:3349
bool hasTrivialCopyAssignment() const
Determine whether this class has a trivial copy assignment operator (C++ [class.copy]p11, C++11 [class.copy]p25)
Definition: DeclCXX.h:1376
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:2817
Encodes a location in the source.
bool isPure() const
Whether this virtual function is pure, i.e.
Definition: Decl.h:1993
static bool classofKind(Kind K)
Definition: DeclCXX.h:2669
redeclarable_base::redecl_iterator redecl_iterator
Definition: DeclCXX.h:2994
const CXXMethodDecl * getCorrespondingMethodInClass(const CXXRecordDecl *RD, bool MayBeBase=false) const
Definition: DeclCXX.h:2144
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name.
Definition: DeclCXX.h:3539
A set of all the primary bases for a class.
const StringLiteral * getMessage() const
Definition: DeclCXX.h:3696
SourceLocation getNamespaceKeyLocation() const
Returns the location of the namespace keyword.
Definition: DeclCXX.h:2918
DeclarationName getName() const
getName - Returns the embedded declaration name.
SourceLocation getUsingLoc() const
Return the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3308
std::reverse_iterator< init_const_iterator > init_const_reverse_iterator
Definition: DeclCXX.h:2477
Defines several types used to describe C++ lambda expressions that are shared between the parser and ...
Represents a dependent using declaration which was not marked with typename.
Definition: DeclCXX.h:3494
TagDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: Decl.cpp:3678
init_iterator init_end()
Retrieve an iterator past the last initializer.
Definition: DeclCXX.h:2466
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name, with source-location information.
Definition: DeclCXX.h:3536
llvm::iterator_range< base_class_iterator > base_class_range
Definition: DeclCXX.h:769
void setCtorInitializers(CXXCtorInitializer **Initializers)
Definition: DeclCXX.h:2503
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:1964
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
static bool classofKind(Kind K)
Definition: DeclCXX.h:3755
SourceLocation getIdentLocation() const
Returns the location of this using declaration&#39;s identifier.
Definition: DeclCXX.h:2921
bool isPackExpansion() const
Determine whether this base specifier is a pack expansion.
Definition: DeclCXX.h:251
void setImplicitMoveConstructorIsDeleted()
Set that we attempted to declare an implicit move constructor, but overload resolution failed so we d...
Definition: DeclCXX.h:1023
static bool classofKind(Kind K)
Definition: DeclCXX.h:2152
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name of the namespace, with source-location inf...
Definition: DeclCXX.h:2888
llvm::function_ref< bool(const CXXRecordDecl *BaseDefinition)> ForallBasesCallback
Function type used by forallBases() as a callback.
Definition: DeclCXX.h:1643
UsingDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3405
bool isExplicitSpecified() const
Whether this function is marked as explicit explicitly.
Definition: DeclCXX.h:2709
static bool classof(const Decl *D)
Definition: DeclCXX.h:171
RefQualifierKind
The kind of C++11 ref-qualifier associated with a function type.
Definition: Type.h:1311
static bool classof(const Decl *D)
Definition: DeclCXX.h:3147
ConstructorUsingShadowDecl * getConstructedBaseClassShadowDecl() const
Get the inheriting constructor declaration for the base class for which we don&#39;t have an explicit ini...
Definition: DeclCXX.h:3236
void setIsParsingBaseSpecifiers()
Definition: DeclCXX.h:755
static void * getAsVoidPointer(::clang::AnyFunctionDecl F)
Definition: DeclCXX.h:105
void setImplicitDestructorIsDeleted()
Set that we attempted to declare an implicit destructor, but overload resolution failed so we deleted...
Definition: DeclCXX.h:1032
const CXXDestructorDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2663
SourceLocation getMemberLocation() const
Definition: DeclCXX.h:2325
::clang::AnyFunctionDecl getFromVoidPointer(void *P)
Definition: DeclCXX.h:109
Represents a C++11 static_assert declaration.
Definition: DeclCXX.h:3669
SourceLocation getRBraceLoc() const
Definition: DeclCXX.h:2802
TypeSourceInfo * getTypeSourceInfo() const
Retrieves the type and source location of the base class.
Definition: DeclCXX.h:295
SourceLocation getAccessSpecifierLoc() const
The location of the access specifier.
Definition: DeclCXX.h:147
bool defaultedCopyConstructorIsDeleted() const
true if a defaulted copy constructor for this class would be deleted.
Definition: DeclCXX.h:862
__PTRDIFF_TYPE__ ptrdiff_t
A signed integer type that is the result of subtracting two pointers.
Definition: opencl-c.h:68
int getSourceOrder() const
Return the source position of the initializer, counting from 0.
Definition: DeclCXX.h:2341
bool hasSetter() const
Definition: DeclCXX.h:3857
CXXBaseSpecifier(SourceRange R, bool V, bool BC, AccessSpecifier A, TypeSourceInfo *TInfo, SourceLocation EllipsisLoc)
Definition: DeclCXX.h:228
bool hasInClassInitializer() const
Whether this class has any in-class initializers for non-static data members (including those in anon...
Definition: DeclCXX.h:1241
Defines various enumerations that describe declaration and type specifiers.
DeclarationNameLoc - Additional source/type location info for a declaration name. ...
CXXConstructorDecl * getConstructor() const
Definition: DeclCXX.h:2384
bool hasSimpleDestructor() const
true if we know for sure that this class has an accessible destructor that is not deleted...
Definition: DeclCXX.h:909
TagTypeKind
The kind of a tag type.
Definition: Type.h:4696
static bool isStaticOverloadedOperator(OverloadedOperatorKind OOK)
Returns true if the given operator is implicitly static in a record context.
Definition: DeclCXX.h:1996
Dataflow Directional Tag Classes.
bool isExplicit() const
Whether this function is explicit.
Definition: DeclCXX.h:2511
NestedNameSpecifier * getNestedNameSpecifier() const
Retrieve the nested-name-specifier to which this instance refers.
bool isValid() const
Return true if this is a valid SourceLocation object.
static bool classof(const Decl *D)
Definition: DeclCXX.h:2151
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1252
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:378
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
method_iterator begin_overridden_methods() const
Definition: DeclCXX.cpp:1912
static AnyFunctionDecl getFromNamedDecl(NamedDecl *ND)
Definition: DeclCXX.h:93
SourceLocation getLocStart() const LLVM_READONLY
Definition: TypeLoc.h:137
SourceRange getSourceRange(const SourceRange &Range)
Returns the SourceRange of a SourceRange.
Definition: FixIt.h:34
base_class_const_range vbases() const
Definition: DeclCXX.h:793
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:358
SourceLocation getBaseTypeLoc() const LLVM_READONLY
Get the location at which the base class type was written.
Definition: DeclCXX.h:239
bool isAccessDeclaration() const
Return true if it is a C++03 access declaration (no &#39;using&#39;).
Definition: DeclCXX.h:3532
IndirectFieldDecl - An instance of this class is created to represent a field injected from an anonym...
Definition: Decl.h:2705
void setUsingLoc(SourceLocation L)
Set the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3529
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name of the namespace, with source-location inf...
Definition: DeclCXX.h:3011
DeclContext * getCommonAncestor()
Returns the common ancestor context of this using-directive and its nominated namespace.
Definition: DeclCXX.h:2910
llvm::iterator_range< base_class_const_iterator > base_class_const_range
Definition: DeclCXX.h:771
A decomposition declaration.
Definition: DeclCXX.h:3766
bool hasUserDeclaredConstructor() const
Determine whether this class has any user-declared constructors.
Definition: DeclCXX.h:936
IdentifierNamespace
IdentifierNamespace - The different namespaces in which declarations may appear.
Definition: DeclBase.h:115
Represents a dependent using declaration which was marked with typename.
Definition: DeclCXX.h:3590
conversion_iterator conversion_begin() const
Definition: DeclCXX.h:1215
DeclarationName - The name of a declaration.
StmtClass getStmtClass() const
Definition: Stmt.h:378
const CXXRecordDecl * getParent() const
Returns the parent of this method declaration, which is the class in which this method is defined...
Definition: DeclCXX.h:2085
Kind getKind() const
Definition: DeclBase.h:419
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name, with source-location information.
Definition: DeclCXX.h:3626
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3633
unsigned shadow_size() const
Return the number of shadowed declarations associated with this using declaration.
Definition: DeclCXX.h:3387
const NamespaceDecl * getNamespace() const
Definition: DeclCXX.h:3027
A mapping from each virtual member function to its set of final overriders.
llvm::iterator_range< redecl_iterator > redecl_range
Definition: Redeclarable.h:295
base_class_const_iterator bases_end() const
Definition: DeclCXX.h:783
base_class_iterator vbases_begin()
Definition: DeclCXX.h:797
TemplateSpecializationKind
Describes the kind of template specialization that a particular template specialization declaration r...
Definition: Specifiers.h:143
void setExternLoc(SourceLocation L)
Definition: DeclCXX.h:2803
bool isUserProvided() const
True if this method is user-declared and was not deleted or defaulted on its first declaration...
Definition: DeclCXX.h:2063
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
T * get(ExternalASTSource *Source) const
Retrieve the pointer to the AST node that this lazy pointer.
specific_decl_iterator - Iterates over a subrange of declarations stored in a DeclContext, providing only those that are of type SpecificDecl (or a class derived from it).
Definition: DeclBase.h:1596
bool hasNonTrivialCopyAssignment() const
Determine whether this class has a non-trivial copy assignment operator (C++ [class.copy]p11, C++11 [class.copy]p25)
Definition: DeclCXX.h:1382
bool isMoveConstructor() const
Determine whether this constructor is a move constructor (C++11 [class.copy]p3), which can be used to...
Definition: DeclCXX.h:2561
const FunctionDecl * getOperatorDelete() const
Definition: DeclCXX.h:2652
bool needsOverloadResolutionForMoveConstructor() const
Determine whether we need to eagerly declare a defaulted move constructor for this class...
Definition: DeclCXX.h:1051
static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, AccessSpecifier DeclAccess)
Calculates the access of a decl that is reached along a path.
Definition: DeclCXX.h:1789
Provides common interface for the Decls that cannot be redeclared, but can be merged if the same decl...
Definition: Redeclarable.h:317
static bool classofKind(Kind K)
Definition: DeclCXX.h:2607
static bool classof(const Decl *D)
Definition: DeclCXX.h:3804
const CXXMethodDecl * getMostRecentDecl() const
Definition: DeclCXX.h:2057
Represents a C++ base or member initializer.
Definition: DeclCXX.h:2172
bool isParsingBaseSpecifiers() const
Definition: DeclCXX.h:757
LanguageIDs
Represents the language in a linkage specification.
Definition: DeclCXX.h:2753
bool needsOverloadResolutionForMoveAssignment() const
Determine whether we need to eagerly declare a move assignment operator for this class.
Definition: DeclCXX.h:1128
IndirectFieldDecl * getIndirectMember() const
Definition: DeclCXX.h:2319
friend TrailingObjects
Definition: OpenMPClause.h:82
static bool classofKind(Kind K)
Definition: DeclCXX.h:3707
base_class_const_iterator vbases_begin() const
Definition: DeclCXX.h:798
static LinkageSpecDecl * castFromDeclContext(const DeclContext *DC)
Definition: DeclCXX.h:2828
static UsingShadowDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation Loc, UsingDecl *Using, NamedDecl *Target)
Definition: DeclCXX.h:3101
const DeclContext * getCommonAncestor() const
Definition: DeclCXX.h:2911
AnyFunctionDecl(FunctionDecl *FD)
Definition: DeclCXX.h:83
Represents a base class of a C++ class.
Definition: DeclCXX.h:191
bool hasTypename() const
Return true if the using declaration has &#39;typename&#39;.
Definition: DeclCXX.h:3330
static bool classofKind(Kind K)
Definition: DeclCXX.h:1896
bool needsImplicitCopyConstructor() const
Determine whether this class needs an implicit copy constructor to be lazily declared.
Definition: DeclCXX.h:955
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
Definition: TypeLoc.h:222
bool hasMutableFields() const
Determine whether this class, or any of its class subobjects, contains a mutable field.
Definition: DeclCXX.h:1304
shadow_range shadows() const
Definition: DeclCXX.h:3375
static bool classofKind(Kind K)
Definition: DeclCXX.h:172
Defines the clang::SourceLocation class and associated facilities.
void setImplicitMoveAssignmentIsDeleted()
Set that we attempted to declare an implicit move assignment operator, but overload resolution failed...
Definition: DeclCXX.h:1104
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
Definition: Type.h:5808
Represents a C++ struct/union/class.
Definition: DeclCXX.h:299
void setBinding(QualType DeclaredType, Expr *Binding)
Set the binding for this BindingDecl, along with its declared type (which should be a possibly-cv-qua...
Definition: DeclCXX.h:3749
bool hasUserDeclaredMoveConstructor() const
Determine whether this class has had a move constructor declared by the user.
Definition: DeclCXX.h:1002
bool hasSimpleMoveAssignment() const
true if we know for sure that this class has a single, accessible, unambiguous move assignment operat...
Definition: DeclCXX.h:902
static bool classof(const Decl *D)
Definition: DeclCXX.h:2606
SourceLocation getEllipsisLoc() const
For a pack expansion, determine the location of the ellipsis.
Definition: DeclCXX.h:262
UsingShadowDecl * getNextUsingShadowDecl() const
The next using shadow declaration contained in the shadow decl chain of the using declaration which i...
Definition: DeclCXX.h:3143
An object for streaming information to a record.
Definition: ASTWriter.h:746
static bool classofKind(Kind K)
Definition: DeclCXX.h:3480
Provides information a specialization of a member of a class template, which may be a member function...
Definition: DeclTemplate.h:595
LambdaCaptureDefault getLambdaCaptureDefault() const
Definition: DeclCXX.h:1177
bool isDependentLambda() const
Determine whether this lambda expression was known to be dependent at the time it was created...
Definition: DeclCXX.h:1883
base_class_iterator bases_end()
Definition: DeclCXX.h:782
friend bool operator==(shadow_iterator x, shadow_iterator y)
Definition: DeclCXX.h:3365
shadow_iterator & operator++()
Definition: DeclCXX.h:3354
bool isFailed() const
Definition: DeclCXX.h:3698
Declaration of a class template.
Writes an AST file containing the contents of a translation unit.
Definition: ASTWriter.h:104
bool hasInheritedAssignment() const
Determine whether this class has a using-declaration that names a base class assignment operator...
Definition: DeclCXX.h:1457
bool isOffset() const
Whether this pointer is currently stored as an offset.
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1509
Kind
Lists the kind of concrete classes of Decl.
Definition: DeclBase.h:89
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name.
Definition: DeclCXX.h:3318
SourceLocation getEllipsisLoc() const
Get the location of the ellipsis if this is a pack expansion.
Definition: DeclCXX.h:3643
bool constructsVirtualBase() const
Returns true if the constructed base class is a virtual base class subobject of this declaration&#39;s cl...
Definition: DeclCXX.h:3255
Expr * getBinding() const
Get the expression to which this declaration is bound.
Definition: DeclCXX.h:3740
static bool classof(const Decl *D)
Definition: DeclCXX.h:3853
SourceLocation getUsingLoc() const
Returns the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3619
bool implicitCopyConstructorHasConstParam() const
Determine whether an implicit copy constructor for this type would have a parameter with a const-qual...
Definition: DeclCXX.h:976
ASTContext::overridden_method_range overridden_method_range
Definition: DeclCXX.h:2079
BasePaths - Represents the set of paths from a derived class to one of its (direct or indirect) bases...
void setCanPassInRegisters(bool CanPass)
Set that we can pass this RecordDecl in registers.
Definition: DeclCXX.h:1439
capture_const_iterator captures_begin() const
Definition: DeclCXX.h:1204
bool needsImplicitMoveConstructor() const
Determine whether this class should get an implicit move constructor or if any existing special membe...
Definition: DeclCXX.h:1041
bool hasDirectFields() const
Determine whether this class has direct non-static data members.
Definition: DeclCXX.h:1282
An instance of this class represents the declaration of a property member.
Definition: DeclCXX.h:3835
SourceLocation getNamespaceLoc() const
Returns the location of the namespace keyword.
Definition: DeclCXX.h:3036
AccessSpecifier getAccessSpecifierAsWritten() const
Retrieves the access specifier as written in the source code (which may mean that no access specifier...
Definition: DeclCXX.h:283
shadow_iterator operator++(int)
Definition: DeclCXX.h:3359
NamedDecl * get() const
Retrieve the underlying function or function template.
Definition: DeclCXX.h:91
A trivial tuple used to represent a source range.
static bool classofKind(Kind K)
Definition: DeclCXX.h:2734
FunctionDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: Decl.cpp:2834
static bool classofKind(Kind K)
Definition: DeclCXX.h:1957
NamedDecl - This represents a decl with a name.
Definition: Decl.h:245
bool hasCopyConstructorWithConstParam() const
Determine whether this class has a copy constructor with a parameter type which is a reference to a c...
Definition: DeclCXX.h:984
static DeclarationName getUsingDirectiveName()
getUsingDirectiveName - Return name for all using-directives.
redeclarable_base::redecl_iterator redecl_iterator
Definition: DeclCXX.h:3110
Represents a C++ namespace alias.
Definition: DeclCXX.h:2947
SourceRange getSourceRange() const LLVM_READONLY
Retrieves the source range that contains the entire base specifier.
Definition: DeclCXX.h:234
ArrayRef< NamedDecl * > expansions() const
Get the set of using declarations that this pack expanded into.
Definition: DeclCXX.h:3461
Represents C++ using-directive.
Definition: DeclCXX.h:2843
bool isAggregate() const
Determine whether this class is an aggregate (C++ [dcl.init.aggr]), which is a class with no user-dec...
Definition: DeclCXX.h:1236
ctor_range ctors() const
Definition: DeclCXX.h:835
SourceLocation getBegin() const
llvm::iterator_range< overridden_cxx_method_iterator > overridden_method_range
Definition: ASTContext.h:890
SourceLocation ColonLoc
Location of &#39;:&#39;.
Definition: OpenMPClause.h:90
TemplateDecl * getDeducedTemplate() const
Get the template for which this guide performs deduction.
Definition: DeclCXX.h:1945
bool hasDefaultConstructor() const
Determine whether this class has any default constructors.
Definition: DeclCXX.h:915
ctor_iterator ctor_begin() const
Definition: DeclCXX.h:837
base_class_range vbases()
Definition: DeclCXX.h:790
Declaration of a template function.
Definition: DeclTemplate.h:939
void setTargetDecl(NamedDecl *ND)
Sets the underlying declaration which has been brought into the local scope.
Definition: DeclCXX.h:3132
bool canPassInRegisters() const
Determine whether this class has at least one trivial, non-deleted copy or move constructor.
Definition: DeclCXX.h:1433
SourceLocation getLocation() const
Definition: DeclBase.h:416
Represents a shadow declaration introduced into a scope by a (resolved) using declaration.
Definition: DeclCXX.h:3066
Represents a pack of using declarations that a single using-declarator pack-expanded into...
Definition: DeclCXX.h:3425
QualType getType() const
Return the type wrapped by this type source info.
Definition: Decl.h:97
static bool isProvablyNotDerivedFrom(Sema &SemaRef, CXXRecordDecl *Record, const BaseSet &Bases)
Determines if the given class is provably not derived from all of the prospective base classes...
const UsingShadowDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3122
ConstructorUsingShadowDecl * getShadowDecl() const
Definition: DeclCXX.h:2383
Defines the LambdaCapture class.
NamedDecl * getAliasedNamespace() const
Retrieve the namespace that this alias refers to, which may either be a NamespaceDecl or a NamespaceA...
Definition: DeclCXX.h:3043
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:158
CXXRecordDecl * getParent()
Definition: DeclCXX.h:3222
static OMPLinearClause * Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation LParenLoc, OpenMPLinearClauseKind Modifier, SourceLocation ModifierLoc, SourceLocation ColonLoc, SourceLocation EndLoc, ArrayRef< Expr *> VL, ArrayRef< Expr *> PL, ArrayRef< Expr *> IL, Expr *Step, Expr *CalcStep, Stmt *PreInit, Expr *PostUpdate)
Creates clause with a list of variables VL and a linear step Step.
bool isInheritingConstructor() const
Determine whether this is an implicit constructor synthesized to model a call to a constructor inheri...
Definition: DeclCXX.h:2590
method_range methods() const
Definition: DeclCXX.h:815
QualType getType() const
Retrieves the type of the base class.
Definition: DeclCXX.h:290
bool defaultedDestructorIsDeleted() const
true if a defaulted destructor for this class would be deleted.
Definition: DeclCXX.h:879