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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 /// 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"
23 #include "clang/AST/DeclBase.h"
25 #include "clang/AST/Expr.h"
29 #include "clang/AST/Redeclarable.h"
30 #include "clang/AST/Stmt.h"
31 #include "clang/AST/Type.h"
32 #include "clang/AST/TypeLoc.h"
34 #include "clang/Basic/LLVM.h"
35 #include "clang/Basic/Lambda.h"
39 #include "clang/Basic/Specifiers.h"
40 #include "llvm/ADT/ArrayRef.h"
41 #include "llvm/ADT/DenseMap.h"
42 #include "llvm/ADT/PointerIntPair.h"
43 #include "llvm/ADT/PointerUnion.h"
44 #include "llvm/ADT/STLExtras.h"
45 #include "llvm/ADT/iterator_range.h"
46 #include "llvm/Support/Casting.h"
47 #include "llvm/Support/Compiler.h"
48 #include "llvm/Support/PointerLikeTypeTraits.h"
49 #include "llvm/Support/TrailingObjects.h"
50 #include <cassert>
51 #include <cstddef>
52 #include <iterator>
53 #include <memory>
54 #include <vector>
55 
56 namespace clang {
57 
58 class ClassTemplateDecl;
59 class ConstructorUsingShadowDecl;
60 class CXXBasePath;
61 class CXXBasePaths;
62 class CXXConstructorDecl;
63 class CXXDestructorDecl;
64 class CXXFinalOverriderMap;
65 class CXXIndirectPrimaryBaseSet;
66 class CXXMethodDecl;
67 class DiagnosticBuilder;
68 class FriendDecl;
69 class FunctionTemplateDecl;
70 class IdentifierInfo;
71 class MemberSpecializationInfo;
72 class TemplateDecl;
73 class TemplateParameterList;
74 class UsingDecl;
75 
76 /// Represents any kind of function declaration, whether it is a
77 /// concrete function or a function template.
79  NamedDecl *Function;
80 
81  AnyFunctionDecl(NamedDecl *ND) : Function(ND) {}
82 
83 public:
84  AnyFunctionDecl(FunctionDecl *FD) : Function(FD) {}
86 
87  /// Implicily converts any function or function template into a
88  /// named declaration.
89  operator NamedDecl *() const { return Function; }
90 
91  /// Retrieve the underlying function or function template.
92  NamedDecl *get() const { return Function; }
93 
95  return AnyFunctionDecl(ND);
96  }
97 };
98 
99 } // namespace clang
100 
101 namespace llvm {
102 
103  // Provide PointerLikeTypeTraits for non-cvr pointers.
104  template<>
107  return F.get();
108  }
109 
110  static ::clang::AnyFunctionDecl getFromVoidPointer(void *P) {
111  return ::clang::AnyFunctionDecl::getFromNamedDecl(
112  static_cast< ::clang::NamedDecl*>(P));
113  }
114 
115  enum { NumLowBitsAvailable = 2 };
116  };
117 
118 } // namespace llvm
119 
120 namespace clang {
121 
122 /// Represents an access specifier followed by colon ':'.
123 ///
124 /// An objects of this class represents sugar for the syntactic occurrence
125 /// of an access specifier followed by a colon in the list of member
126 /// specifiers of a C++ class definition.
127 ///
128 /// Note that they do not represent other uses of access specifiers,
129 /// such as those occurring in a list of base specifiers.
130 /// Also note that this class has nothing to do with so-called
131 /// "access declarations" (C++98 11.3 [class.access.dcl]).
132 class AccessSpecDecl : public Decl {
133  /// The location of the ':'.
135 
137  SourceLocation ASLoc, SourceLocation ColonLoc)
138  : Decl(AccessSpec, DC, ASLoc), ColonLoc(ColonLoc) {
139  setAccess(AS);
140  }
141 
142  AccessSpecDecl(EmptyShell Empty) : Decl(AccessSpec, Empty) {}
143 
144  virtual void anchor();
145 
146 public:
147  /// The location of the access specifier.
148  SourceLocation getAccessSpecifierLoc() const { return getLocation(); }
149 
150  /// Sets the location of the access specifier.
151  void setAccessSpecifierLoc(SourceLocation ASLoc) { setLocation(ASLoc); }
152 
153  /// The location of the colon following the access specifier.
154  SourceLocation getColonLoc() const { return ColonLoc; }
155 
156  /// Sets the location of the colon.
157  void setColonLoc(SourceLocation CLoc) { ColonLoc = CLoc; }
158 
159  SourceRange getSourceRange() const override LLVM_READONLY {
160  return SourceRange(getAccessSpecifierLoc(), getColonLoc());
161  }
162 
164  DeclContext *DC, SourceLocation ASLoc,
165  SourceLocation ColonLoc) {
166  return new (C, DC) AccessSpecDecl(AS, DC, ASLoc, ColonLoc);
167  }
168 
169  static AccessSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID);
170 
171  // Implement isa/cast/dyncast/etc.
172  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
173  static bool classofKind(Kind K) { return K == AccessSpec; }
174 };
175 
176 /// Represents a base class of a C++ class.
177 ///
178 /// Each CXXBaseSpecifier represents a single, direct base class (or
179 /// struct) of a C++ class (or struct). It specifies the type of that
180 /// base class, whether it is a virtual or non-virtual base, and what
181 /// level of access (public, protected, private) is used for the
182 /// derivation. For example:
183 ///
184 /// \code
185 /// class A { };
186 /// class B { };
187 /// class C : public virtual A, protected B { };
188 /// \endcode
189 ///
190 /// In this code, C will have two CXXBaseSpecifiers, one for "public
191 /// virtual A" and the other for "protected B".
193  /// The source code range that covers the full base
194  /// specifier, including the "virtual" (if present) and access
195  /// specifier (if present).
196  SourceRange Range;
197 
198  /// The source location of the ellipsis, if this is a pack
199  /// expansion.
200  SourceLocation EllipsisLoc;
201 
202  /// Whether this is a virtual base class or not.
203  unsigned Virtual : 1;
204 
205  /// Whether this is the base of a class (true) or of a struct (false).
206  ///
207  /// This determines the mapping from the access specifier as written in the
208  /// source code to the access specifier used for semantic analysis.
209  unsigned BaseOfClass : 1;
210 
211  /// Access specifier as written in the source code (may be AS_none).
212  ///
213  /// The actual type of data stored here is an AccessSpecifier, but we use
214  /// "unsigned" here to work around a VC++ bug.
215  unsigned Access : 2;
216 
217  /// Whether the class contains a using declaration
218  /// to inherit the named class's constructors.
219  unsigned InheritConstructors : 1;
220 
221  /// The type of the base class.
222  ///
223  /// This will be a class or struct (or a typedef of such). The source code
224  /// range does not include the \c virtual or the access specifier.
225  TypeSourceInfo *BaseTypeInfo;
226 
227 public:
228  CXXBaseSpecifier() = default;
230  TypeSourceInfo *TInfo, SourceLocation EllipsisLoc)
231  : Range(R), EllipsisLoc(EllipsisLoc), Virtual(V), BaseOfClass(BC),
232  Access(A), InheritConstructors(false), BaseTypeInfo(TInfo) {}
233 
234  /// Retrieves the source range that contains the entire base specifier.
235  SourceRange getSourceRange() const LLVM_READONLY { return Range; }
236  SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); }
237  SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); }
238 
239  /// Get the location at which the base class type was written.
240  SourceLocation getBaseTypeLoc() const LLVM_READONLY {
241  return BaseTypeInfo->getTypeLoc().getLocStart();
242  }
243 
244  /// Determines whether the base class is a virtual base class (or not).
245  bool isVirtual() const { return Virtual; }
246 
247  /// Determine whether this base class is a base of a class declared
248  /// with the 'class' keyword (vs. one declared with the 'struct' keyword).
249  bool isBaseOfClass() const { return BaseOfClass; }
250 
251  /// Determine whether this base specifier is a pack expansion.
252  bool isPackExpansion() const { return EllipsisLoc.isValid(); }
253 
254  /// Determine whether this base class's constructors get inherited.
255  bool getInheritConstructors() const { return InheritConstructors; }
256 
257  /// Set that this base class's constructors should be inherited.
258  void setInheritConstructors(bool Inherit = true) {
259  InheritConstructors = Inherit;
260  }
261 
262  /// For a pack expansion, determine the location of the ellipsis.
264  return EllipsisLoc;
265  }
266 
267  /// Returns the access specifier for this base specifier.
268  ///
269  /// This is the actual base specifier as used for semantic analysis, so
270  /// the result can never be AS_none. To retrieve the access specifier as
271  /// written in the source code, use getAccessSpecifierAsWritten().
273  if ((AccessSpecifier)Access == AS_none)
274  return BaseOfClass? AS_private : AS_public;
275  else
276  return (AccessSpecifier)Access;
277  }
278 
279  /// Retrieves the access specifier as written in the source code
280  /// (which may mean that no access specifier was explicitly written).
281  ///
282  /// Use getAccessSpecifier() to retrieve the access specifier for use in
283  /// semantic analysis.
285  return (AccessSpecifier)Access;
286  }
287 
288  /// Retrieves the type of the base class.
289  ///
290  /// This type will always be an unqualified class type.
291  QualType getType() const {
292  return BaseTypeInfo->getType().getUnqualifiedType();
293  }
294 
295  /// Retrieves the type and source location of the base class.
296  TypeSourceInfo *getTypeSourceInfo() const { return BaseTypeInfo; }
297 };
298 
299 /// Represents a C++ struct/union/class.
300 class CXXRecordDecl : public RecordDecl {
301  friend class ASTDeclReader;
302  friend class ASTDeclWriter;
303  friend class ASTNodeImporter;
304  friend class ASTReader;
305  friend class ASTRecordWriter;
306  friend class ASTWriter;
307  friend class DeclContext;
308  friend class LambdaExpr;
309 
310  friend void FunctionDecl::setPure(bool);
311  friend void TagDecl::startDefinition();
312 
313  /// Values used in DefinitionData fields to represent special members.
314  enum SpecialMemberFlags {
315  SMF_DefaultConstructor = 0x1,
316  SMF_CopyConstructor = 0x2,
317  SMF_MoveConstructor = 0x4,
318  SMF_CopyAssignment = 0x8,
319  SMF_MoveAssignment = 0x10,
320  SMF_Destructor = 0x20,
321  SMF_All = 0x3f
322  };
323 
324  struct DefinitionData {
325  /// True if this class has any user-declared constructors.
326  unsigned UserDeclaredConstructor : 1;
327 
328  /// The user-declared special members which this class has.
329  unsigned UserDeclaredSpecialMembers : 6;
330 
331  /// True when this class is an aggregate.
332  unsigned Aggregate : 1;
333 
334  /// True when this class is a POD-type.
335  unsigned PlainOldData : 1;
336 
337  /// true when this class is empty for traits purposes,
338  /// i.e. has no data members other than 0-width bit-fields, has no
339  /// virtual function/base, and doesn't inherit from a non-empty
340  /// class. Doesn't take union-ness into account.
341  unsigned Empty : 1;
342 
343  /// True when this class is polymorphic, i.e., has at
344  /// least one virtual member or derives from a polymorphic class.
345  unsigned Polymorphic : 1;
346 
347  /// True when this class is abstract, i.e., has at least
348  /// one pure virtual function, (that can come from a base class).
349  unsigned Abstract : 1;
350 
351  /// True when this class is standard-layout, per the applicable
352  /// language rules (including DRs).
353  unsigned IsStandardLayout : 1;
354 
355  /// True when this class was standard-layout under the C++11
356  /// definition.
357  ///
358  /// C++11 [class]p7. A standard-layout class is a class that:
359  /// * has no non-static data members of type non-standard-layout class (or
360  /// array of such types) or reference,
361  /// * has no virtual functions (10.3) and no virtual base classes (10.1),
362  /// * has the same access control (Clause 11) for all non-static data
363  /// members
364  /// * has no non-standard-layout base classes,
365  /// * either has no non-static data members in the most derived class and at
366  /// most one base class with non-static data members, or has no base
367  /// classes with non-static data members, and
368  /// * has no base classes of the same type as the first non-static data
369  /// member.
370  unsigned IsCXX11StandardLayout : 1;
371 
372  /// True when any base class has any declared non-static data
373  /// members or bit-fields.
374  /// This is a helper bit of state used to implement IsStandardLayout more
375  /// efficiently.
376  unsigned HasBasesWithFields : 1;
377 
378  /// True when any base class has any declared non-static data
379  /// members.
380  /// This is a helper bit of state used to implement IsCXX11StandardLayout
381  /// more efficiently.
382  unsigned HasBasesWithNonStaticDataMembers : 1;
383 
384  /// True when there are private non-static data members.
385  unsigned HasPrivateFields : 1;
386 
387  /// True when there are protected non-static data members.
388  unsigned HasProtectedFields : 1;
389 
390  /// True when there are private non-static data members.
391  unsigned HasPublicFields : 1;
392 
393  /// True if this class (or any subobject) has mutable fields.
394  unsigned HasMutableFields : 1;
395 
396  /// True if this class (or any nested anonymous struct or union)
397  /// has variant members.
398  unsigned HasVariantMembers : 1;
399 
400  /// True if there no non-field members declared by the user.
401  unsigned HasOnlyCMembers : 1;
402 
403  /// True if any field has an in-class initializer, including those
404  /// within anonymous unions or structs.
405  unsigned HasInClassInitializer : 1;
406 
407  /// True if any field is of reference type, and does not have an
408  /// in-class initializer.
409  ///
410  /// In this case, value-initialization of this class is illegal in C++98
411  /// even if the class has a trivial default constructor.
412  unsigned HasUninitializedReferenceMember : 1;
413 
414  /// True if any non-mutable field whose type doesn't have a user-
415  /// provided default ctor also doesn't have an in-class initializer.
416  unsigned HasUninitializedFields : 1;
417 
418  /// True if there are any member using-declarations that inherit
419  /// constructors from a base class.
420  unsigned HasInheritedConstructor : 1;
421 
422  /// True if there are any member using-declarations named
423  /// 'operator='.
424  unsigned HasInheritedAssignment : 1;
425 
426  /// These flags are \c true if a defaulted corresponding special
427  /// member can't be fully analyzed without performing overload resolution.
428  /// @{
429  unsigned NeedOverloadResolutionForCopyConstructor : 1;
430  unsigned NeedOverloadResolutionForMoveConstructor : 1;
431  unsigned NeedOverloadResolutionForMoveAssignment : 1;
432  unsigned NeedOverloadResolutionForDestructor : 1;
433  /// @}
434 
435  /// These flags are \c true if an implicit defaulted corresponding
436  /// special member would be defined as deleted.
437  /// @{
438  unsigned DefaultedCopyConstructorIsDeleted : 1;
439  unsigned DefaultedMoveConstructorIsDeleted : 1;
440  unsigned DefaultedMoveAssignmentIsDeleted : 1;
441  unsigned DefaultedDestructorIsDeleted : 1;
442  /// @}
443 
444  /// The trivial special members which this class has, per
445  /// C++11 [class.ctor]p5, C++11 [class.copy]p12, C++11 [class.copy]p25,
446  /// C++11 [class.dtor]p5, or would have if the member were not suppressed.
447  ///
448  /// This excludes any user-declared but not user-provided special members
449  /// which have been declared but not yet defined.
450  unsigned HasTrivialSpecialMembers : 6;
451 
452  /// These bits keep track of the triviality of special functions for the
453  /// purpose of calls. Only the bits corresponding to SMF_CopyConstructor,
454  /// SMF_MoveConstructor, and SMF_Destructor are meaningful here.
455  unsigned HasTrivialSpecialMembersForCall : 6;
456 
457  /// The declared special members of this class which are known to be
458  /// non-trivial.
459  ///
460  /// This excludes any user-declared but not user-provided special members
461  /// which have been declared but not yet defined, and any implicit special
462  /// members which have not yet been declared.
463  unsigned DeclaredNonTrivialSpecialMembers : 6;
464 
465  /// These bits keep track of the declared special members that are
466  /// non-trivial for the purpose of calls.
467  /// Only the bits corresponding to SMF_CopyConstructor,
468  /// SMF_MoveConstructor, and SMF_Destructor are meaningful here.
469  unsigned DeclaredNonTrivialSpecialMembersForCall : 6;
470 
471  /// True when this class has a destructor with no semantic effect.
472  unsigned HasIrrelevantDestructor : 1;
473 
474  /// True when this class has at least one user-declared constexpr
475  /// constructor which is neither the copy nor move constructor.
476  unsigned HasConstexprNonCopyMoveConstructor : 1;
477 
478  /// True if this class has a (possibly implicit) defaulted default
479  /// constructor.
480  unsigned HasDefaultedDefaultConstructor : 1;
481 
482  /// True if a defaulted default constructor for this class would
483  /// be constexpr.
484  unsigned DefaultedDefaultConstructorIsConstexpr : 1;
485 
486  /// True if this class has a constexpr default constructor.
487  ///
488  /// This is true for either a user-declared constexpr default constructor
489  /// or an implicitly declared constexpr default constructor.
490  unsigned HasConstexprDefaultConstructor : 1;
491 
492  /// True when this class contains at least one non-static data
493  /// member or base class of non-literal or volatile type.
494  unsigned HasNonLiteralTypeFieldsOrBases : 1;
495 
496  /// True when visible conversion functions are already computed
497  /// and are available.
498  unsigned ComputedVisibleConversions : 1;
499 
500  /// Whether we have a C++11 user-provided default constructor (not
501  /// explicitly deleted or defaulted).
502  unsigned UserProvidedDefaultConstructor : 1;
503 
504  /// The special members which have been declared for this class,
505  /// either by the user or implicitly.
506  unsigned DeclaredSpecialMembers : 6;
507 
508  /// Whether an implicit copy constructor could have a const-qualified
509  /// parameter, for initializing virtual bases and for other subobjects.
510  unsigned ImplicitCopyConstructorCanHaveConstParamForVBase : 1;
511  unsigned ImplicitCopyConstructorCanHaveConstParamForNonVBase : 1;
512 
513  /// Whether an implicit copy assignment operator would have a
514  /// const-qualified parameter.
515  unsigned ImplicitCopyAssignmentHasConstParam : 1;
516 
517  /// Whether any declared copy constructor has a const-qualified
518  /// parameter.
519  unsigned HasDeclaredCopyConstructorWithConstParam : 1;
520 
521  /// Whether any declared copy assignment operator has either a
522  /// const-qualified reference parameter or a non-reference parameter.
523  unsigned HasDeclaredCopyAssignmentWithConstParam : 1;
524 
525  /// Whether this class describes a C++ lambda.
526  unsigned IsLambda : 1;
527 
528  /// Whether we are currently parsing base specifiers.
529  unsigned IsParsingBaseSpecifiers : 1;
530 
531  unsigned HasODRHash : 1;
532 
533  /// A hash of parts of the class to help in ODR checking.
534  unsigned ODRHash = 0;
535 
536  /// The number of base class specifiers in Bases.
537  unsigned NumBases = 0;
538 
539  /// The number of virtual base class specifiers in VBases.
540  unsigned NumVBases = 0;
541 
542  /// Base classes of this class.
543  ///
544  /// FIXME: This is wasted space for a union.
546 
547  /// direct and indirect virtual base classes of this class.
549 
550  /// The conversion functions of this C++ class (but not its
551  /// inherited conversion functions).
552  ///
553  /// Each of the entries in this overload set is a CXXConversionDecl.
554  LazyASTUnresolvedSet Conversions;
555 
556  /// The conversion functions of this C++ class and all those
557  /// inherited conversion functions that are visible in this class.
558  ///
559  /// Each of the entries in this overload set is a CXXConversionDecl or a
560  /// FunctionTemplateDecl.
561  LazyASTUnresolvedSet VisibleConversions;
562 
563  /// The declaration which defines this record.
564  CXXRecordDecl *Definition;
565 
566  /// The first friend declaration in this class, or null if there
567  /// aren't any.
568  ///
569  /// This is actually currently stored in reverse order.
570  LazyDeclPtr FirstFriend;
571 
572  DefinitionData(CXXRecordDecl *D);
573 
574  /// Retrieve the set of direct base classes.
575  CXXBaseSpecifier *getBases() const {
576  if (!Bases.isOffset())
577  return Bases.get(nullptr);
578  return getBasesSlowCase();
579  }
580 
581  /// Retrieve the set of virtual base classes.
582  CXXBaseSpecifier *getVBases() const {
583  if (!VBases.isOffset())
584  return VBases.get(nullptr);
585  return getVBasesSlowCase();
586  }
587 
588  ArrayRef<CXXBaseSpecifier> bases() const {
589  return llvm::makeArrayRef(getBases(), NumBases);
590  }
591 
592  ArrayRef<CXXBaseSpecifier> vbases() const {
593  return llvm::makeArrayRef(getVBases(), NumVBases);
594  }
595 
596  private:
597  CXXBaseSpecifier *getBasesSlowCase() const;
598  CXXBaseSpecifier *getVBasesSlowCase() const;
599  };
600 
601  struct DefinitionData *DefinitionData;
602 
603  /// Describes a C++ closure type (generated by a lambda expression).
604  struct LambdaDefinitionData : public DefinitionData {
605  using Capture = LambdaCapture;
606 
607  /// Whether this lambda is known to be dependent, even if its
608  /// context isn't dependent.
609  ///
610  /// A lambda with a non-dependent context can be dependent if it occurs
611  /// within the default argument of a function template, because the
612  /// lambda will have been created with the enclosing context as its
613  /// declaration context, rather than function. This is an unfortunate
614  /// artifact of having to parse the default arguments before.
615  unsigned Dependent : 1;
616 
617  /// Whether this lambda is a generic lambda.
618  unsigned IsGenericLambda : 1;
619 
620  /// The Default Capture.
621  unsigned CaptureDefault : 2;
622 
623  /// The number of captures in this lambda is limited 2^NumCaptures.
624  unsigned NumCaptures : 15;
625 
626  /// The number of explicit captures in this lambda.
627  unsigned NumExplicitCaptures : 13;
628 
629  /// The number used to indicate this lambda expression for name
630  /// mangling in the Itanium C++ ABI.
631  unsigned ManglingNumber = 0;
632 
633  /// The declaration that provides context for this lambda, if the
634  /// actual DeclContext does not suffice. This is used for lambdas that
635  /// occur within default arguments of function parameters within the class
636  /// or within a data member initializer.
637  LazyDeclPtr ContextDecl;
638 
639  /// The list of captures, both explicit and implicit, for this
640  /// lambda.
641  Capture *Captures = nullptr;
642 
643  /// The type of the call method.
644  TypeSourceInfo *MethodTyInfo;
645 
646  LambdaDefinitionData(CXXRecordDecl *D, TypeSourceInfo *Info,
647  bool Dependent, bool IsGeneric,
648  LambdaCaptureDefault CaptureDefault)
649  : DefinitionData(D), Dependent(Dependent), IsGenericLambda(IsGeneric),
650  CaptureDefault(CaptureDefault), NumCaptures(0), NumExplicitCaptures(0),
651  MethodTyInfo(Info) {
652  IsLambda = true;
653 
654  // C++1z [expr.prim.lambda]p4:
655  // This class type is not an aggregate type.
656  Aggregate = false;
657  PlainOldData = false;
658  }
659  };
660 
661  struct DefinitionData *dataPtr() const {
662  // Complete the redecl chain (if necessary).
663  getMostRecentDecl();
664  return DefinitionData;
665  }
666 
667  struct DefinitionData &data() const {
668  auto *DD = dataPtr();
669  assert(DD && "queried property of class with no definition");
670  return *DD;
671  }
672 
673  struct LambdaDefinitionData &getLambdaData() const {
674  // No update required: a merged definition cannot change any lambda
675  // properties.
676  auto *DD = DefinitionData;
677  assert(DD && DD->IsLambda && "queried lambda property of non-lambda class");
678  return static_cast<LambdaDefinitionData&>(*DD);
679  }
680 
681  /// The template or declaration that this declaration
682  /// describes or was instantiated from, respectively.
683  ///
684  /// For non-templates, this value will be null. For record
685  /// declarations that describe a class template, this will be a
686  /// pointer to a ClassTemplateDecl. For member
687  /// classes of class template specializations, this will be the
688  /// MemberSpecializationInfo referring to the member class that was
689  /// instantiated or specialized.
690  llvm::PointerUnion<ClassTemplateDecl *, MemberSpecializationInfo *>
691  TemplateOrInstantiation;
692 
693  /// Called from setBases and addedMember to notify the class that a
694  /// direct or virtual base class or a member of class type has been added.
695  void addedClassSubobject(CXXRecordDecl *Base);
696 
697  /// Notify the class that member has been added.
698  ///
699  /// This routine helps maintain information about the class based on which
700  /// members have been added. It will be invoked by DeclContext::addDecl()
701  /// whenever a member is added to this record.
702  void addedMember(Decl *D);
703 
704  void markedVirtualFunctionPure();
705 
706  /// Get the head of our list of friend declarations, possibly
707  /// deserializing the friends from an external AST source.
708  FriendDecl *getFirstFriend() const;
709 
710  /// Determine whether this class has an empty base class subobject of type X
711  /// or of one of the types that might be at offset 0 within X (per the C++
712  /// "standard layout" rules).
713  bool hasSubobjectAtOffsetZeroOfEmptyBaseType(ASTContext &Ctx,
714  const CXXRecordDecl *X);
715 
716 protected:
717  CXXRecordDecl(Kind K, TagKind TK, const ASTContext &C, DeclContext *DC,
718  SourceLocation StartLoc, SourceLocation IdLoc,
719  IdentifierInfo *Id, CXXRecordDecl *PrevDecl);
720 
721 public:
722  /// Iterator that traverses the base classes of a class.
724 
725  /// Iterator that traverses the base classes of a class.
727 
729  return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl());
730  }
731 
733  return const_cast<CXXRecordDecl*>(this)->getCanonicalDecl();
734  }
735 
737  return cast_or_null<CXXRecordDecl>(
738  static_cast<RecordDecl *>(this)->getPreviousDecl());
739  }
740 
742  return const_cast<CXXRecordDecl*>(this)->getPreviousDecl();
743  }
744 
746  return cast<CXXRecordDecl>(
747  static_cast<RecordDecl *>(this)->getMostRecentDecl());
748  }
749 
751  return const_cast<CXXRecordDecl*>(this)->getMostRecentDecl();
752  }
753 
755  CXXRecordDecl *Recent =
756  static_cast<CXXRecordDecl *>(this)->getMostRecentDecl();
757  while (Recent->isInjectedClassName()) {
758  // FIXME: Does injected class name need to be in the redeclarations chain?
759  assert(Recent->getPreviousDecl());
760  Recent = Recent->getPreviousDecl();
761  }
762  return Recent;
763  }
764 
766  return const_cast<CXXRecordDecl*>(this)->getMostRecentNonInjectedDecl();
767  }
768 
770  // We only need an update if we don't already know which
771  // declaration is the definition.
772  auto *DD = DefinitionData ? DefinitionData : dataPtr();
773  return DD ? DD->Definition : nullptr;
774  }
775 
776  bool hasDefinition() const { return DefinitionData || dataPtr(); }
777 
778  static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC,
779  SourceLocation StartLoc, SourceLocation IdLoc,
781  CXXRecordDecl *PrevDecl = nullptr,
782  bool DelayTypeCreation = false);
783  static CXXRecordDecl *CreateLambda(const ASTContext &C, DeclContext *DC,
784  TypeSourceInfo *Info, SourceLocation Loc,
785  bool DependentLambda, bool IsGeneric,
786  LambdaCaptureDefault CaptureDefault);
787  static CXXRecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID);
788 
789  bool isDynamicClass() const {
790  return data().Polymorphic || data().NumVBases != 0;
791  }
792 
793  void setIsParsingBaseSpecifiers() { data().IsParsingBaseSpecifiers = true; }
794 
795  bool isParsingBaseSpecifiers() const {
796  return data().IsParsingBaseSpecifiers;
797  }
798 
799  unsigned getODRHash() const;
800 
801  /// Sets the base classes of this struct or class.
802  void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases);
803 
804  /// Retrieves the number of base classes of this class.
805  unsigned getNumBases() const { return data().NumBases; }
806 
807  using base_class_range = llvm::iterator_range<base_class_iterator>;
808  using base_class_const_range =
809  llvm::iterator_range<base_class_const_iterator>;
810 
812  return base_class_range(bases_begin(), bases_end());
813  }
815  return base_class_const_range(bases_begin(), bases_end());
816  }
817 
818  base_class_iterator bases_begin() { return data().getBases(); }
819  base_class_const_iterator bases_begin() const { return data().getBases(); }
820  base_class_iterator bases_end() { return bases_begin() + data().NumBases; }
822  return bases_begin() + data().NumBases;
823  }
824 
825  /// Retrieves the number of virtual base classes of this class.
826  unsigned getNumVBases() const { return data().NumVBases; }
827 
829  return base_class_range(vbases_begin(), vbases_end());
830  }
832  return base_class_const_range(vbases_begin(), vbases_end());
833  }
834 
835  base_class_iterator vbases_begin() { return data().getVBases(); }
836  base_class_const_iterator vbases_begin() const { return data().getVBases(); }
837  base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; }
839  return vbases_begin() + data().NumVBases;
840  }
841 
842  /// Determine whether this class has any dependent base classes which
843  /// are not the current instantiation.
844  bool hasAnyDependentBases() const;
845 
846  /// Iterator access to method members. The method iterator visits
847  /// all method members of the class, including non-instance methods,
848  /// special methods, etc.
850  using method_range =
851  llvm::iterator_range<specific_decl_iterator<CXXMethodDecl>>;
852 
854  return method_range(method_begin(), method_end());
855  }
856 
857  /// Method begin iterator. Iterates in the order the methods
858  /// were declared.
860  return method_iterator(decls_begin());
861  }
862 
863  /// Method past-the-end iterator.
865  return method_iterator(decls_end());
866  }
867 
868  /// Iterator access to constructor members.
870  using ctor_range =
871  llvm::iterator_range<specific_decl_iterator<CXXConstructorDecl>>;
872 
873  ctor_range ctors() const { return ctor_range(ctor_begin(), ctor_end()); }
874 
876  return ctor_iterator(decls_begin());
877  }
878 
880  return ctor_iterator(decls_end());
881  }
882 
883  /// An iterator over friend declarations. All of these are defined
884  /// in DeclFriend.h.
885  class friend_iterator;
886  using friend_range = llvm::iterator_range<friend_iterator>;
887 
888  friend_range friends() const;
889  friend_iterator friend_begin() const;
890  friend_iterator friend_end() const;
891  void pushFriendDecl(FriendDecl *FD);
892 
893  /// Determines whether this record has any friends.
894  bool hasFriends() const {
895  return data().FirstFriend.isValid();
896  }
897 
898  /// \c true if a defaulted copy constructor for this class would be
899  /// deleted.
901  assert((!needsOverloadResolutionForCopyConstructor() ||
902  (data().DeclaredSpecialMembers & SMF_CopyConstructor)) &&
903  "this property has not yet been computed by Sema");
904  return data().DefaultedCopyConstructorIsDeleted;
905  }
906 
907  /// \c true if a defaulted move constructor for this class would be
908  /// deleted.
910  assert((!needsOverloadResolutionForMoveConstructor() ||
911  (data().DeclaredSpecialMembers & SMF_MoveConstructor)) &&
912  "this property has not yet been computed by Sema");
913  return data().DefaultedMoveConstructorIsDeleted;
914  }
915 
916  /// \c true if a defaulted destructor for this class would be deleted.
918  assert((!needsOverloadResolutionForDestructor() ||
919  (data().DeclaredSpecialMembers & SMF_Destructor)) &&
920  "this property has not yet been computed by Sema");
921  return data().DefaultedDestructorIsDeleted;
922  }
923 
924  /// \c true if we know for sure that this class has a single,
925  /// accessible, unambiguous copy constructor that is not deleted.
927  return !hasUserDeclaredCopyConstructor() &&
928  !data().DefaultedCopyConstructorIsDeleted;
929  }
930 
931  /// \c true if we know for sure that this class has a single,
932  /// accessible, unambiguous move constructor that is not deleted.
934  return !hasUserDeclaredMoveConstructor() && hasMoveConstructor() &&
935  !data().DefaultedMoveConstructorIsDeleted;
936  }
937 
938  /// \c true if we know for sure that this class has a single,
939  /// accessible, unambiguous move assignment operator that is not deleted.
940  bool hasSimpleMoveAssignment() const {
941  return !hasUserDeclaredMoveAssignment() && hasMoveAssignment() &&
942  !data().DefaultedMoveAssignmentIsDeleted;
943  }
944 
945  /// \c true if we know for sure that this class has an accessible
946  /// destructor that is not deleted.
947  bool hasSimpleDestructor() const {
948  return !hasUserDeclaredDestructor() &&
949  !data().DefaultedDestructorIsDeleted;
950  }
951 
952  /// Determine whether this class has any default constructors.
953  bool hasDefaultConstructor() const {
954  return (data().DeclaredSpecialMembers & SMF_DefaultConstructor) ||
955  needsImplicitDefaultConstructor();
956  }
957 
958  /// Determine if we need to declare a default constructor for
959  /// this class.
960  ///
961  /// This value is used for lazy creation of default constructors.
963  return !data().UserDeclaredConstructor &&
964  !(data().DeclaredSpecialMembers & SMF_DefaultConstructor) &&
965  // C++14 [expr.prim.lambda]p20:
966  // The closure type associated with a lambda-expression has no
967  // default constructor.
968  !isLambda();
969  }
970 
971  /// Determine whether this class has any user-declared constructors.
972  ///
973  /// When true, a default constructor will not be implicitly declared.
975  return data().UserDeclaredConstructor;
976  }
977 
978  /// Whether this class has a user-provided default constructor
979  /// per C++11.
981  return data().UserProvidedDefaultConstructor;
982  }
983 
984  /// Determine whether this class has a user-declared copy constructor.
985  ///
986  /// When false, a copy constructor will be implicitly declared.
988  return data().UserDeclaredSpecialMembers & SMF_CopyConstructor;
989  }
990 
991  /// Determine whether this class needs an implicit copy
992  /// constructor to be lazily declared.
994  return !(data().DeclaredSpecialMembers & SMF_CopyConstructor);
995  }
996 
997  /// Determine whether we need to eagerly declare a defaulted copy
998  /// constructor for this class.
1000  // C++17 [class.copy.ctor]p6:
1001  // If the class definition declares a move constructor or move assignment
1002  // operator, the implicitly declared copy constructor is defined as
1003  // deleted.
1004  // In MSVC mode, sometimes a declared move assignment does not delete an
1005  // implicit copy constructor, so defer this choice to Sema.
1006  if (data().UserDeclaredSpecialMembers &
1007  (SMF_MoveConstructor | SMF_MoveAssignment))
1008  return true;
1009  return data().NeedOverloadResolutionForCopyConstructor;
1010  }
1011 
1012  /// Determine whether an implicit copy constructor for this type
1013  /// would have a parameter with a const-qualified reference type.
1015  return data().ImplicitCopyConstructorCanHaveConstParamForNonVBase &&
1016  (isAbstract() ||
1017  data().ImplicitCopyConstructorCanHaveConstParamForVBase);
1018  }
1019 
1020  /// Determine whether this class has a copy constructor with
1021  /// a parameter type which is a reference to a const-qualified type.
1023  return data().HasDeclaredCopyConstructorWithConstParam ||
1024  (needsImplicitCopyConstructor() &&
1025  implicitCopyConstructorHasConstParam());
1026  }
1027 
1028  /// Whether this class has a user-declared move constructor or
1029  /// assignment operator.
1030  ///
1031  /// When false, a move constructor and assignment operator may be
1032  /// implicitly declared.
1034  return data().UserDeclaredSpecialMembers &
1035  (SMF_MoveConstructor | SMF_MoveAssignment);
1036  }
1037 
1038  /// Determine whether this class has had a move constructor
1039  /// declared by the user.
1041  return data().UserDeclaredSpecialMembers & SMF_MoveConstructor;
1042  }
1043 
1044  /// Determine whether this class has a move constructor.
1045  bool hasMoveConstructor() const {
1046  return (data().DeclaredSpecialMembers & SMF_MoveConstructor) ||
1047  needsImplicitMoveConstructor();
1048  }
1049 
1050  /// Set that we attempted to declare an implicit copy
1051  /// constructor, but overload resolution failed so we deleted it.
1053  assert((data().DefaultedCopyConstructorIsDeleted ||
1054  needsOverloadResolutionForCopyConstructor()) &&
1055  "Copy constructor should not be deleted");
1056  data().DefaultedCopyConstructorIsDeleted = true;
1057  }
1058 
1059  /// Set that we attempted to declare an implicit move
1060  /// constructor, but overload resolution failed so we deleted it.
1062  assert((data().DefaultedMoveConstructorIsDeleted ||
1063  needsOverloadResolutionForMoveConstructor()) &&
1064  "move constructor should not be deleted");
1065  data().DefaultedMoveConstructorIsDeleted = true;
1066  }
1067 
1068  /// Set that we attempted to declare an implicit destructor,
1069  /// but overload resolution failed so we deleted it.
1071  assert((data().DefaultedDestructorIsDeleted ||
1072  needsOverloadResolutionForDestructor()) &&
1073  "destructor should not be deleted");
1074  data().DefaultedDestructorIsDeleted = true;
1075  }
1076 
1077  /// Determine whether this class should get an implicit move
1078  /// constructor or if any existing special member function inhibits this.
1080  return !(data().DeclaredSpecialMembers & SMF_MoveConstructor) &&
1081  !hasUserDeclaredCopyConstructor() &&
1082  !hasUserDeclaredCopyAssignment() &&
1083  !hasUserDeclaredMoveAssignment() &&
1084  !hasUserDeclaredDestructor();
1085  }
1086 
1087  /// Determine whether we need to eagerly declare a defaulted move
1088  /// constructor for this class.
1090  return data().NeedOverloadResolutionForMoveConstructor;
1091  }
1092 
1093  /// Determine whether this class has a user-declared copy assignment
1094  /// operator.
1095  ///
1096  /// When false, a copy assignment operator will be implicitly declared.
1098  return data().UserDeclaredSpecialMembers & SMF_CopyAssignment;
1099  }
1100 
1101  /// Determine whether this class needs an implicit copy
1102  /// assignment operator to be lazily declared.
1104  return !(data().DeclaredSpecialMembers & SMF_CopyAssignment);
1105  }
1106 
1107  /// Determine whether we need to eagerly declare a defaulted copy
1108  /// assignment operator for this class.
1110  return data().HasMutableFields;
1111  }
1112 
1113  /// Determine whether an implicit copy assignment operator for this
1114  /// type would have a parameter with a const-qualified reference type.
1116  return data().ImplicitCopyAssignmentHasConstParam;
1117  }
1118 
1119  /// Determine whether this class has a copy assignment operator with
1120  /// a parameter type which is a reference to a const-qualified type or is not
1121  /// a reference.
1123  return data().HasDeclaredCopyAssignmentWithConstParam ||
1124  (needsImplicitCopyAssignment() &&
1125  implicitCopyAssignmentHasConstParam());
1126  }
1127 
1128  /// Determine whether this class has had a move assignment
1129  /// declared by the user.
1131  return data().UserDeclaredSpecialMembers & SMF_MoveAssignment;
1132  }
1133 
1134  /// Determine whether this class has a move assignment operator.
1135  bool hasMoveAssignment() const {
1136  return (data().DeclaredSpecialMembers & SMF_MoveAssignment) ||
1137  needsImplicitMoveAssignment();
1138  }
1139 
1140  /// Set that we attempted to declare an implicit move assignment
1141  /// operator, but overload resolution failed so we deleted it.
1143  assert((data().DefaultedMoveAssignmentIsDeleted ||
1144  needsOverloadResolutionForMoveAssignment()) &&
1145  "move assignment should not be deleted");
1146  data().DefaultedMoveAssignmentIsDeleted = true;
1147  }
1148 
1149  /// Determine whether this class should get an implicit move
1150  /// assignment operator or if any existing special member function inhibits
1151  /// this.
1153  return !(data().DeclaredSpecialMembers & SMF_MoveAssignment) &&
1154  !hasUserDeclaredCopyConstructor() &&
1155  !hasUserDeclaredCopyAssignment() &&
1156  !hasUserDeclaredMoveConstructor() &&
1157  !hasUserDeclaredDestructor() &&
1158  // C++1z [expr.prim.lambda]p21: "the closure type has a deleted copy
1159  // assignment operator". The intent is that this counts as a user
1160  // declared copy assignment, but we do not model it that way.
1161  !isLambda();
1162  }
1163 
1164  /// Determine whether we need to eagerly declare a move assignment
1165  /// operator for this class.
1167  return data().NeedOverloadResolutionForMoveAssignment;
1168  }
1169 
1170  /// Determine whether this class has a user-declared destructor.
1171  ///
1172  /// When false, a destructor will be implicitly declared.
1174  return data().UserDeclaredSpecialMembers & SMF_Destructor;
1175  }
1176 
1177  /// Determine whether this class needs an implicit destructor to
1178  /// be lazily declared.
1180  return !(data().DeclaredSpecialMembers & SMF_Destructor);
1181  }
1182 
1183  /// Determine whether we need to eagerly declare a destructor for this
1184  /// class.
1186  return data().NeedOverloadResolutionForDestructor;
1187  }
1188 
1189  /// Determine whether this class describes a lambda function object.
1190  bool isLambda() const {
1191  // An update record can't turn a non-lambda into a lambda.
1192  auto *DD = DefinitionData;
1193  return DD && DD->IsLambda;
1194  }
1195 
1196  /// Determine whether this class describes a generic
1197  /// lambda function object (i.e. function call operator is
1198  /// a template).
1199  bool isGenericLambda() const;
1200 
1201  /// Retrieve the lambda call operator of the closure type
1202  /// if this is a closure type.
1203  CXXMethodDecl *getLambdaCallOperator() const;
1204 
1205  /// Retrieve the lambda static invoker, the address of which
1206  /// is returned by the conversion operator, and the body of which
1207  /// is forwarded to the lambda call operator.
1208  CXXMethodDecl *getLambdaStaticInvoker() const;
1209 
1210  /// Retrieve the generic lambda's template parameter list.
1211  /// Returns null if the class does not represent a lambda or a generic
1212  /// lambda.
1214 
1216  assert(isLambda());
1217  return static_cast<LambdaCaptureDefault>(getLambdaData().CaptureDefault);
1218  }
1219 
1220  /// For a closure type, retrieve the mapping from captured
1221  /// variables and \c this to the non-static data members that store the
1222  /// values or references of the captures.
1223  ///
1224  /// \param Captures Will be populated with the mapping from captured
1225  /// variables to the corresponding fields.
1226  ///
1227  /// \param ThisCapture Will be set to the field declaration for the
1228  /// \c this capture.
1229  ///
1230  /// \note No entries will be added for init-captures, as they do not capture
1231  /// variables.
1232  void getCaptureFields(llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures,
1233  FieldDecl *&ThisCapture) const;
1234 
1236  using capture_const_range = llvm::iterator_range<capture_const_iterator>;
1237 
1239  return capture_const_range(captures_begin(), captures_end());
1240  }
1241 
1243  return isLambda() ? getLambdaData().Captures : nullptr;
1244  }
1245 
1247  return isLambda() ? captures_begin() + getLambdaData().NumCaptures
1248  : nullptr;
1249  }
1250 
1252 
1254  return data().Conversions.get(getASTContext()).begin();
1255  }
1256 
1258  return data().Conversions.get(getASTContext()).end();
1259  }
1260 
1261  /// Removes a conversion function from this class. The conversion
1262  /// function must currently be a member of this class. Furthermore,
1263  /// this class must currently be in the process of being defined.
1264  void removeConversion(const NamedDecl *Old);
1265 
1266  /// Get all conversion functions visible in current class,
1267  /// including conversion function templates.
1268  llvm::iterator_range<conversion_iterator> getVisibleConversionFunctions();
1269 
1270  /// Determine whether this class is an aggregate (C++ [dcl.init.aggr]),
1271  /// which is a class with no user-declared constructors, no private
1272  /// or protected non-static data members, no base classes, and no virtual
1273  /// functions (C++ [dcl.init.aggr]p1).
1274  bool isAggregate() const { return data().Aggregate; }
1275 
1276  /// Whether this class has any in-class initializers
1277  /// for non-static data members (including those in anonymous unions or
1278  /// structs).
1279  bool hasInClassInitializer() const { return data().HasInClassInitializer; }
1280 
1281  /// Whether this class or any of its subobjects has any members of
1282  /// reference type which would make value-initialization ill-formed.
1283  ///
1284  /// Per C++03 [dcl.init]p5:
1285  /// - if T is a non-union class type without a user-declared constructor,
1286  /// then every non-static data member and base-class component of T is
1287  /// value-initialized [...] A program that calls for [...]
1288  /// value-initialization of an entity of reference type is ill-formed.
1290  return !isUnion() && !hasUserDeclaredConstructor() &&
1291  data().HasUninitializedReferenceMember;
1292  }
1293 
1294  /// Whether this class is a POD-type (C++ [class]p4)
1295  ///
1296  /// For purposes of this function a class is POD if it is an aggregate
1297  /// that has no non-static non-POD data members, no reference data
1298  /// members, no user-defined copy assignment operator and no
1299  /// user-defined destructor.
1300  ///
1301  /// Note that this is the C++ TR1 definition of POD.
1302  bool isPOD() const { return data().PlainOldData; }
1303 
1304  /// True if this class is C-like, without C++-specific features, e.g.
1305  /// it contains only public fields, no bases, tag kind is not 'class', etc.
1306  bool isCLike() const;
1307 
1308  /// Determine whether this is an empty class in the sense of
1309  /// (C++11 [meta.unary.prop]).
1310  ///
1311  /// The CXXRecordDecl is a class type, but not a union type,
1312  /// with no non-static data members other than bit-fields of length 0,
1313  /// no virtual member functions, no virtual base classes,
1314  /// and no base class B for which is_empty<B>::value is false.
1315  ///
1316  /// \note This does NOT include a check for union-ness.
1317  bool isEmpty() const { return data().Empty; }
1318 
1319  /// Determine whether this class has direct non-static data members.
1320  bool hasDirectFields() const {
1321  auto &D = data();
1322  return D.HasPublicFields || D.HasProtectedFields || D.HasPrivateFields;
1323  }
1324 
1325  /// Whether this class is polymorphic (C++ [class.virtual]),
1326  /// which means that the class contains or inherits a virtual function.
1327  bool isPolymorphic() const { return data().Polymorphic; }
1328 
1329  /// Determine whether this class has a pure virtual function.
1330  ///
1331  /// The class is is abstract per (C++ [class.abstract]p2) if it declares
1332  /// a pure virtual function or inherits a pure virtual function that is
1333  /// not overridden.
1334  bool isAbstract() const { return data().Abstract; }
1335 
1336  /// Determine whether this class is standard-layout per
1337  /// C++ [class]p7.
1338  bool isStandardLayout() const { return data().IsStandardLayout; }
1339 
1340  /// Determine whether this class was standard-layout per
1341  /// C++11 [class]p7, specifically using the C++11 rules without any DRs.
1342  bool isCXX11StandardLayout() const { return data().IsCXX11StandardLayout; }
1343 
1344  /// Determine whether this class, or any of its class subobjects,
1345  /// contains a mutable field.
1346  bool hasMutableFields() const { return data().HasMutableFields; }
1347 
1348  /// Determine whether this class has any variant members.
1349  bool hasVariantMembers() const { return data().HasVariantMembers; }
1350 
1351  /// Determine whether this class has a trivial default constructor
1352  /// (C++11 [class.ctor]p5).
1354  return hasDefaultConstructor() &&
1355  (data().HasTrivialSpecialMembers & SMF_DefaultConstructor);
1356  }
1357 
1358  /// Determine whether this class has a non-trivial default constructor
1359  /// (C++11 [class.ctor]p5).
1361  return (data().DeclaredNonTrivialSpecialMembers & SMF_DefaultConstructor) ||
1362  (needsImplicitDefaultConstructor() &&
1363  !(data().HasTrivialSpecialMembers & SMF_DefaultConstructor));
1364  }
1365 
1366  /// Determine whether this class has at least one constexpr constructor
1367  /// other than the copy or move constructors.
1369  return data().HasConstexprNonCopyMoveConstructor ||
1370  (needsImplicitDefaultConstructor() &&
1371  defaultedDefaultConstructorIsConstexpr());
1372  }
1373 
1374  /// Determine whether a defaulted default constructor for this class
1375  /// would be constexpr.
1377  return data().DefaultedDefaultConstructorIsConstexpr &&
1378  (!isUnion() || hasInClassInitializer() || !hasVariantMembers());
1379  }
1380 
1381  /// Determine whether this class has a constexpr default constructor.
1383  return data().HasConstexprDefaultConstructor ||
1384  (needsImplicitDefaultConstructor() &&
1385  defaultedDefaultConstructorIsConstexpr());
1386  }
1387 
1388  /// Determine whether this class has a trivial copy constructor
1389  /// (C++ [class.copy]p6, C++11 [class.copy]p12)
1391  return data().HasTrivialSpecialMembers & SMF_CopyConstructor;
1392  }
1393 
1395  return data().HasTrivialSpecialMembersForCall & SMF_CopyConstructor;
1396  }
1397 
1398  /// Determine whether this class has a non-trivial copy constructor
1399  /// (C++ [class.copy]p6, C++11 [class.copy]p12)
1401  return data().DeclaredNonTrivialSpecialMembers & SMF_CopyConstructor ||
1402  !hasTrivialCopyConstructor();
1403  }
1404 
1406  return (data().DeclaredNonTrivialSpecialMembersForCall &
1407  SMF_CopyConstructor) ||
1408  !hasTrivialCopyConstructorForCall();
1409  }
1410 
1411  /// Determine whether this class has a trivial move constructor
1412  /// (C++11 [class.copy]p12)
1414  return hasMoveConstructor() &&
1415  (data().HasTrivialSpecialMembers & SMF_MoveConstructor);
1416  }
1417 
1419  return hasMoveConstructor() &&
1420  (data().HasTrivialSpecialMembersForCall & SMF_MoveConstructor);
1421  }
1422 
1423  /// Determine whether this class has a non-trivial move constructor
1424  /// (C++11 [class.copy]p12)
1426  return (data().DeclaredNonTrivialSpecialMembers & SMF_MoveConstructor) ||
1427  (needsImplicitMoveConstructor() &&
1428  !(data().HasTrivialSpecialMembers & SMF_MoveConstructor));
1429  }
1430 
1432  return (data().DeclaredNonTrivialSpecialMembersForCall &
1433  SMF_MoveConstructor) ||
1434  (needsImplicitMoveConstructor() &&
1435  !(data().HasTrivialSpecialMembersForCall & SMF_MoveConstructor));
1436  }
1437 
1438  /// Determine whether this class has a trivial copy assignment operator
1439  /// (C++ [class.copy]p11, C++11 [class.copy]p25)
1441  return data().HasTrivialSpecialMembers & SMF_CopyAssignment;
1442  }
1443 
1444  /// Determine whether this class has a non-trivial copy assignment
1445  /// operator (C++ [class.copy]p11, C++11 [class.copy]p25)
1447  return data().DeclaredNonTrivialSpecialMembers & SMF_CopyAssignment ||
1448  !hasTrivialCopyAssignment();
1449  }
1450 
1451  /// Determine whether this class has a trivial move assignment operator
1452  /// (C++11 [class.copy]p25)
1454  return hasMoveAssignment() &&
1455  (data().HasTrivialSpecialMembers & SMF_MoveAssignment);
1456  }
1457 
1458  /// Determine whether this class has a non-trivial move assignment
1459  /// operator (C++11 [class.copy]p25)
1461  return (data().DeclaredNonTrivialSpecialMembers & SMF_MoveAssignment) ||
1462  (needsImplicitMoveAssignment() &&
1463  !(data().HasTrivialSpecialMembers & SMF_MoveAssignment));
1464  }
1465 
1466  /// Determine whether this class has a trivial destructor
1467  /// (C++ [class.dtor]p3)
1468  bool hasTrivialDestructor() const {
1469  return data().HasTrivialSpecialMembers & SMF_Destructor;
1470  }
1471 
1473  return data().HasTrivialSpecialMembersForCall & SMF_Destructor;
1474  }
1475 
1476  /// Determine whether this class has a non-trivial destructor
1477  /// (C++ [class.dtor]p3)
1479  return !(data().HasTrivialSpecialMembers & SMF_Destructor);
1480  }
1481 
1483  return !(data().HasTrivialSpecialMembersForCall & SMF_Destructor);
1484  }
1485 
1487  data().HasTrivialSpecialMembersForCall =
1488  (SMF_CopyConstructor | SMF_MoveConstructor | SMF_Destructor);
1489  }
1490 
1491  /// Determine whether declaring a const variable with this type is ok
1492  /// per core issue 253.
1493  bool allowConstDefaultInit() const {
1494  return !data().HasUninitializedFields ||
1495  !(data().HasDefaultedDefaultConstructor ||
1496  needsImplicitDefaultConstructor());
1497  }
1498 
1499  /// Determine whether this class has a destructor which has no
1500  /// semantic effect.
1501  ///
1502  /// Any such destructor will be trivial, public, defaulted and not deleted,
1503  /// and will call only irrelevant destructors.
1505  return data().HasIrrelevantDestructor;
1506  }
1507 
1508  /// Determine whether this class has a non-literal or/ volatile type
1509  /// non-static data member or base class.
1511  return data().HasNonLiteralTypeFieldsOrBases;
1512  }
1513 
1514  /// Determine whether this class has a using-declaration that names
1515  /// a user-declared base class constructor.
1517  return data().HasInheritedConstructor;
1518  }
1519 
1520  /// Determine whether this class has a using-declaration that names
1521  /// a base class assignment operator.
1522  bool hasInheritedAssignment() const {
1523  return data().HasInheritedAssignment;
1524  }
1525 
1526  /// Determine whether this class is considered trivially copyable per
1527  /// (C++11 [class]p6).
1528  bool isTriviallyCopyable() const;
1529 
1530  /// Determine whether this class is considered trivial.
1531  ///
1532  /// C++11 [class]p6:
1533  /// "A trivial class is a class that has a trivial default constructor and
1534  /// is trivially copiable."
1535  bool isTrivial() const {
1536  return isTriviallyCopyable() && hasTrivialDefaultConstructor();
1537  }
1538 
1539  /// Determine whether this class is a literal type.
1540  ///
1541  /// C++11 [basic.types]p10:
1542  /// A class type that has all the following properties:
1543  /// - it has a trivial destructor
1544  /// - every constructor call and full-expression in the
1545  /// brace-or-equal-intializers for non-static data members (if any) is
1546  /// a constant expression.
1547  /// - it is an aggregate type or has at least one constexpr constructor
1548  /// or constructor template that is not a copy or move constructor, and
1549  /// - all of its non-static data members and base classes are of literal
1550  /// types
1551  ///
1552  /// We resolve DR1361 by ignoring the second bullet. We resolve DR1452 by
1553  /// treating types with trivial default constructors as literal types.
1554  ///
1555  /// Only in C++17 and beyond, are lambdas literal types.
1556  bool isLiteral() const {
1557  return hasTrivialDestructor() &&
1558  (!isLambda() || getASTContext().getLangOpts().CPlusPlus17) &&
1559  !hasNonLiteralTypeFieldsOrBases() &&
1560  (isAggregate() || isLambda() ||
1561  hasConstexprNonCopyMoveConstructor() ||
1562  hasTrivialDefaultConstructor());
1563  }
1564 
1565  /// If this record is an instantiation of a member class,
1566  /// retrieves the member class from which it was instantiated.
1567  ///
1568  /// This routine will return non-null for (non-templated) member
1569  /// classes of class templates. For example, given:
1570  ///
1571  /// \code
1572  /// template<typename T>
1573  /// struct X {
1574  /// struct A { };
1575  /// };
1576  /// \endcode
1577  ///
1578  /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl
1579  /// whose parent is the class template specialization X<int>. For
1580  /// this declaration, getInstantiatedFromMemberClass() will return
1581  /// the CXXRecordDecl X<T>::A. When a complete definition of
1582  /// X<int>::A is required, it will be instantiated from the
1583  /// declaration returned by getInstantiatedFromMemberClass().
1584  CXXRecordDecl *getInstantiatedFromMemberClass() const;
1585 
1586  /// If this class is an instantiation of a member class of a
1587  /// class template specialization, retrieves the member specialization
1588  /// information.
1589  MemberSpecializationInfo *getMemberSpecializationInfo() const;
1590 
1591  /// Specify that this record is an instantiation of the
1592  /// member class \p RD.
1593  void setInstantiationOfMemberClass(CXXRecordDecl *RD,
1595 
1596  /// Retrieves the class template that is described by this
1597  /// class declaration.
1598  ///
1599  /// Every class template is represented as a ClassTemplateDecl and a
1600  /// CXXRecordDecl. The former contains template properties (such as
1601  /// the template parameter lists) while the latter contains the
1602  /// actual description of the template's
1603  /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the
1604  /// CXXRecordDecl that from a ClassTemplateDecl, while
1605  /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from
1606  /// a CXXRecordDecl.
1607  ClassTemplateDecl *getDescribedClassTemplate() const;
1608 
1609  void setDescribedClassTemplate(ClassTemplateDecl *Template);
1610 
1611  /// Determine whether this particular class is a specialization or
1612  /// instantiation of a class template or member class of a class template,
1613  /// and how it was instantiated or specialized.
1615 
1616  /// Set the kind of specialization or template instantiation this is.
1617  void setTemplateSpecializationKind(TemplateSpecializationKind TSK);
1618 
1619  /// Retrieve the record declaration from which this record could be
1620  /// instantiated. Returns null if this class is not a template instantiation.
1621  const CXXRecordDecl *getTemplateInstantiationPattern() const;
1622 
1624  return const_cast<CXXRecordDecl *>(const_cast<const CXXRecordDecl *>(this)
1625  ->getTemplateInstantiationPattern());
1626  }
1627 
1628  /// Returns the destructor decl for this class.
1629  CXXDestructorDecl *getDestructor() const;
1630 
1631  /// Returns true if the class destructor, or any implicitly invoked
1632  /// destructors are marked noreturn.
1633  bool isAnyDestructorNoReturn() const;
1634 
1635  /// If the class is a local class [class.local], returns
1636  /// the enclosing function declaration.
1637  const FunctionDecl *isLocalClass() const {
1638  if (const auto *RD = dyn_cast<CXXRecordDecl>(getDeclContext()))
1639  return RD->isLocalClass();
1640 
1641  return dyn_cast<FunctionDecl>(getDeclContext());
1642  }
1643 
1645  return const_cast<FunctionDecl*>(
1646  const_cast<const CXXRecordDecl*>(this)->isLocalClass());
1647  }
1648 
1649  /// Determine whether this dependent class is a current instantiation,
1650  /// when viewed from within the given context.
1651  bool isCurrentInstantiation(const DeclContext *CurContext) const;
1652 
1653  /// Determine whether this class is derived from the class \p Base.
1654  ///
1655  /// This routine only determines whether this class is derived from \p Base,
1656  /// but does not account for factors that may make a Derived -> Base class
1657  /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1658  /// base class subobjects.
1659  ///
1660  /// \param Base the base class we are searching for.
1661  ///
1662  /// \returns true if this class is derived from Base, false otherwise.
1663  bool isDerivedFrom(const CXXRecordDecl *Base) const;
1664 
1665  /// Determine whether this class is derived from the type \p Base.
1666  ///
1667  /// This routine only determines whether this class is derived from \p Base,
1668  /// but does not account for factors that may make a Derived -> Base class
1669  /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1670  /// base class subobjects.
1671  ///
1672  /// \param Base the base class we are searching for.
1673  ///
1674  /// \param Paths will contain the paths taken from the current class to the
1675  /// given \p Base class.
1676  ///
1677  /// \returns true if this class is derived from \p Base, false otherwise.
1678  ///
1679  /// \todo add a separate parameter to configure IsDerivedFrom, rather than
1680  /// tangling input and output in \p Paths
1681  bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const;
1682 
1683  /// Determine whether this class is virtually derived from
1684  /// the class \p Base.
1685  ///
1686  /// This routine only determines whether this class is virtually
1687  /// derived from \p Base, but does not account for factors that may
1688  /// make a Derived -> Base class ill-formed, such as
1689  /// private/protected inheritance or multiple, ambiguous base class
1690  /// subobjects.
1691  ///
1692  /// \param Base the base class we are searching for.
1693  ///
1694  /// \returns true if this class is virtually derived from Base,
1695  /// false otherwise.
1696  bool isVirtuallyDerivedFrom(const CXXRecordDecl *Base) const;
1697 
1698  /// Determine whether this class is provably not derived from
1699  /// the type \p Base.
1700  bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const;
1701 
1702  /// Function type used by forallBases() as a callback.
1703  ///
1704  /// \param BaseDefinition the definition of the base class
1705  ///
1706  /// \returns true if this base matched the search criteria
1707  using ForallBasesCallback =
1708  llvm::function_ref<bool(const CXXRecordDecl *BaseDefinition)>;
1709 
1710  /// Determines if the given callback holds for all the direct
1711  /// or indirect base classes of this type.
1712  ///
1713  /// The class itself does not count as a base class. This routine
1714  /// returns false if the class has non-computable base classes.
1715  ///
1716  /// \param BaseMatches Callback invoked for each (direct or indirect) base
1717  /// class of this type, or if \p AllowShortCircuit is true then until a call
1718  /// returns false.
1719  ///
1720  /// \param AllowShortCircuit if false, forces the callback to be called
1721  /// for every base class, even if a dependent or non-matching base was
1722  /// found.
1723  bool forallBases(ForallBasesCallback BaseMatches,
1724  bool AllowShortCircuit = true) const;
1725 
1726  /// Function type used by lookupInBases() to determine whether a
1727  /// specific base class subobject matches the lookup criteria.
1728  ///
1729  /// \param Specifier the base-class specifier that describes the inheritance
1730  /// from the base class we are trying to match.
1731  ///
1732  /// \param Path the current path, from the most-derived class down to the
1733  /// base named by the \p Specifier.
1734  ///
1735  /// \returns true if this base matched the search criteria, false otherwise.
1736  using BaseMatchesCallback =
1737  llvm::function_ref<bool(const CXXBaseSpecifier *Specifier,
1738  CXXBasePath &Path)>;
1739 
1740  /// Look for entities within the base classes of this C++ class,
1741  /// transitively searching all base class subobjects.
1742  ///
1743  /// This routine uses the callback function \p BaseMatches to find base
1744  /// classes meeting some search criteria, walking all base class subobjects
1745  /// and populating the given \p Paths structure with the paths through the
1746  /// inheritance hierarchy that resulted in a match. On a successful search,
1747  /// the \p Paths structure can be queried to retrieve the matching paths and
1748  /// to determine if there were any ambiguities.
1749  ///
1750  /// \param BaseMatches callback function used to determine whether a given
1751  /// base matches the user-defined search criteria.
1752  ///
1753  /// \param Paths used to record the paths from this class to its base class
1754  /// subobjects that match the search criteria.
1755  ///
1756  /// \param LookupInDependent can be set to true to extend the search to
1757  /// dependent base classes.
1758  ///
1759  /// \returns true if there exists any path from this class to a base class
1760  /// subobject that matches the search criteria.
1761  bool lookupInBases(BaseMatchesCallback BaseMatches, CXXBasePaths &Paths,
1762  bool LookupInDependent = false) const;
1763 
1764  /// Base-class lookup callback that determines whether the given
1765  /// base class specifier refers to a specific class declaration.
1766  ///
1767  /// This callback can be used with \c lookupInBases() to determine whether
1768  /// a given derived class has is a base class subobject of a particular type.
1769  /// The base record pointer should refer to the canonical CXXRecordDecl of the
1770  /// base class that we are searching for.
1771  static bool FindBaseClass(const CXXBaseSpecifier *Specifier,
1772  CXXBasePath &Path, const CXXRecordDecl *BaseRecord);
1773 
1774  /// Base-class lookup callback that determines whether the
1775  /// given base class specifier refers to a specific class
1776  /// declaration and describes virtual derivation.
1777  ///
1778  /// This callback can be used with \c lookupInBases() to determine
1779  /// whether a given derived class has is a virtual base class
1780  /// subobject of a particular type. The base record pointer should
1781  /// refer to the canonical CXXRecordDecl of the base class that we
1782  /// are searching for.
1783  static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier,
1784  CXXBasePath &Path,
1785  const CXXRecordDecl *BaseRecord);
1786 
1787  /// Base-class lookup callback that determines whether there exists
1788  /// a tag with the given name.
1789  ///
1790  /// This callback can be used with \c lookupInBases() to find tag members
1791  /// of the given name within a C++ class hierarchy.
1792  static bool FindTagMember(const CXXBaseSpecifier *Specifier,
1793  CXXBasePath &Path, DeclarationName Name);
1794 
1795  /// Base-class lookup callback that determines whether there exists
1796  /// a member with the given name.
1797  ///
1798  /// This callback can be used with \c lookupInBases() to find members
1799  /// of the given name within a C++ class hierarchy.
1800  static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier,
1801  CXXBasePath &Path, DeclarationName Name);
1802 
1803  /// Base-class lookup callback that determines whether there exists
1804  /// a member with the given name.
1805  ///
1806  /// This callback can be used with \c lookupInBases() to find members
1807  /// of the given name within a C++ class hierarchy, including dependent
1808  /// classes.
1809  static bool
1810  FindOrdinaryMemberInDependentClasses(const CXXBaseSpecifier *Specifier,
1811  CXXBasePath &Path, DeclarationName Name);
1812 
1813  /// Base-class lookup callback that determines whether there exists
1814  /// an OpenMP declare reduction member with the given name.
1815  ///
1816  /// This callback can be used with \c lookupInBases() to find members
1817  /// of the given name within a C++ class hierarchy.
1818  static bool FindOMPReductionMember(const CXXBaseSpecifier *Specifier,
1819  CXXBasePath &Path, DeclarationName Name);
1820 
1821  /// Base-class lookup callback that determines whether there exists
1822  /// a member with the given name that can be used in a nested-name-specifier.
1823  ///
1824  /// This callback can be used with \c lookupInBases() to find members of
1825  /// the given name within a C++ class hierarchy that can occur within
1826  /// nested-name-specifiers.
1827  static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier,
1828  CXXBasePath &Path,
1829  DeclarationName Name);
1830 
1831  /// Retrieve the final overriders for each virtual member
1832  /// function in the class hierarchy where this class is the
1833  /// most-derived class in the class hierarchy.
1834  void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const;
1835 
1836  /// Get the indirect primary bases for this class.
1837  void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const;
1838 
1839  /// Performs an imprecise lookup of a dependent name in this class.
1840  ///
1841  /// This function does not follow strict semantic rules and should be used
1842  /// only when lookup rules can be relaxed, e.g. indexing.
1843  std::vector<const NamedDecl *>
1844  lookupDependentName(const DeclarationName &Name,
1845  llvm::function_ref<bool(const NamedDecl *ND)> Filter);
1846 
1847  /// Renders and displays an inheritance diagram
1848  /// for this C++ class and all of its base classes (transitively) using
1849  /// GraphViz.
1850  void viewInheritance(ASTContext& Context) const;
1851 
1852  /// Calculates the access of a decl that is reached
1853  /// along a path.
1855  AccessSpecifier DeclAccess) {
1856  assert(DeclAccess != AS_none);
1857  if (DeclAccess == AS_private) return AS_none;
1858  return (PathAccess > DeclAccess ? PathAccess : DeclAccess);
1859  }
1860 
1861  /// Indicates that the declaration of a defaulted or deleted special
1862  /// member function is now complete.
1863  void finishedDefaultedOrDeletedMember(CXXMethodDecl *MD);
1864 
1865  void setTrivialForCallFlags(CXXMethodDecl *MD);
1866 
1867  /// Indicates that the definition of this class is now complete.
1868  void completeDefinition() override;
1869 
1870  /// Indicates that the definition of this class is now complete,
1871  /// and provides a final overrider map to help determine
1872  ///
1873  /// \param FinalOverriders The final overrider map for this class, which can
1874  /// be provided as an optimization for abstract-class checking. If NULL,
1875  /// final overriders will be computed if they are needed to complete the
1876  /// definition.
1877  void completeDefinition(CXXFinalOverriderMap *FinalOverriders);
1878 
1879  /// Determine whether this class may end up being abstract, even though
1880  /// it is not yet known to be abstract.
1881  ///
1882  /// \returns true if this class is not known to be abstract but has any
1883  /// base classes that are abstract. In this case, \c completeDefinition()
1884  /// will need to compute final overriders to determine whether the class is
1885  /// actually abstract.
1886  bool mayBeAbstract() const;
1887 
1888  /// If this is the closure type of a lambda expression, retrieve the
1889  /// number to be used for name mangling in the Itanium C++ ABI.
1890  ///
1891  /// Zero indicates that this closure type has internal linkage, so the
1892  /// mangling number does not matter, while a non-zero value indicates which
1893  /// lambda expression this is in this particular context.
1894  unsigned getLambdaManglingNumber() const {
1895  assert(isLambda() && "Not a lambda closure type!");
1896  return getLambdaData().ManglingNumber;
1897  }
1898 
1899  /// Retrieve the declaration that provides additional context for a
1900  /// lambda, when the normal declaration context is not specific enough.
1901  ///
1902  /// Certain contexts (default arguments of in-class function parameters and
1903  /// the initializers of data members) have separate name mangling rules for
1904  /// lambdas within the Itanium C++ ABI. For these cases, this routine provides
1905  /// the declaration in which the lambda occurs, e.g., the function parameter
1906  /// or the non-static data member. Otherwise, it returns NULL to imply that
1907  /// the declaration context suffices.
1908  Decl *getLambdaContextDecl() const;
1909 
1910  /// Set the mangling number and context declaration for a lambda
1911  /// class.
1912  void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl) {
1913  getLambdaData().ManglingNumber = ManglingNumber;
1914  getLambdaData().ContextDecl = ContextDecl;
1915  }
1916 
1917  /// Returns the inheritance model used for this record.
1918  MSInheritanceAttr::Spelling getMSInheritanceModel() const;
1919 
1920  /// Calculate what the inheritance model would be for this class.
1921  MSInheritanceAttr::Spelling calculateInheritanceModel() const;
1922 
1923  /// In the Microsoft C++ ABI, use zero for the field offset of a null data
1924  /// member pointer if we can guarantee that zero is not a valid field offset,
1925  /// or if the member pointer has multiple fields. Polymorphic classes have a
1926  /// vfptr at offset zero, so we can use zero for null. If there are multiple
1927  /// fields, we can use zero even if it is a valid field offset because
1928  /// null-ness testing will check the other fields.
1929  bool nullFieldOffsetIsZero() const {
1930  return !MSInheritanceAttr::hasOnlyOneField(/*IsMemberFunction=*/false,
1931  getMSInheritanceModel()) ||
1932  (hasDefinition() && isPolymorphic());
1933  }
1934 
1935  /// Controls when vtordisps will be emitted if this record is used as a
1936  /// virtual base.
1937  MSVtorDispAttr::Mode getMSVtorDispMode() const;
1938 
1939  /// Determine whether this lambda expression was known to be dependent
1940  /// at the time it was created, even if its context does not appear to be
1941  /// dependent.
1942  ///
1943  /// This flag is a workaround for an issue with parsing, where default
1944  /// arguments are parsed before their enclosing function declarations have
1945  /// been created. This means that any lambda expressions within those
1946  /// default arguments will have as their DeclContext the context enclosing
1947  /// the function declaration, which may be non-dependent even when the
1948  /// function declaration itself is dependent. This flag indicates when we
1949  /// know that the lambda is dependent despite that.
1950  bool isDependentLambda() const {
1951  return isLambda() && getLambdaData().Dependent;
1952  }
1953 
1955  return getLambdaData().MethodTyInfo;
1956  }
1957 
1958  // Determine whether this type is an Interface Like type for
1959  // __interface inheritance purposes.
1960  bool isInterfaceLike() const;
1961 
1962  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1963  static bool classofKind(Kind K) {
1964  return K >= firstCXXRecord && K <= lastCXXRecord;
1965  }
1966 };
1967 
1968 /// Represents a C++ deduction guide declaration.
1969 ///
1970 /// \code
1971 /// template<typename T> struct A { A(); A(T); };
1972 /// A() -> A<int>;
1973 /// \endcode
1974 ///
1975 /// In this example, there will be an explicit deduction guide from the
1976 /// second line, and implicit deduction guide templates synthesized from
1977 /// the constructors of \c A.
1979  void anchor() override;
1980 
1981 private:
1983  bool IsExplicit, const DeclarationNameInfo &NameInfo,
1984  QualType T, TypeSourceInfo *TInfo,
1985  SourceLocation EndLocation)
1986  : FunctionDecl(CXXDeductionGuide, C, DC, StartLoc, NameInfo, T, TInfo,
1987  SC_None, false, false) {
1988  if (EndLocation.isValid())
1989  setRangeEnd(EndLocation);
1990  IsExplicitSpecified = IsExplicit;
1991  }
1992 
1993 public:
1994  friend class ASTDeclReader;
1995  friend class ASTDeclWriter;
1996 
1998  SourceLocation StartLoc, bool IsExplicit,
1999  const DeclarationNameInfo &NameInfo,
2000  QualType T, TypeSourceInfo *TInfo,
2001  SourceLocation EndLocation);
2002 
2003  static CXXDeductionGuideDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2004 
2005  /// Whether this deduction guide is explicit.
2006  bool isExplicit() const { return IsExplicitSpecified; }
2007 
2008  /// Whether this deduction guide was declared with the 'explicit' specifier.
2009  bool isExplicitSpecified() const { return IsExplicitSpecified; }
2010 
2011  /// Get the template for which this guide performs deduction.
2013  return getDeclName().getCXXDeductionGuideTemplate();
2014  }
2015 
2017  IsCopyDeductionCandidate = true;
2018  }
2019 
2020  bool isCopyDeductionCandidate() const { return IsCopyDeductionCandidate; }
2021 
2022  // Implement isa/cast/dyncast/etc.
2023  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2024  static bool classofKind(Kind K) { return K == CXXDeductionGuide; }
2025 };
2026 
2027 /// Represents a static or instance method of a struct/union/class.
2028 ///
2029 /// In the terminology of the C++ Standard, these are the (static and
2030 /// non-static) member functions, whether virtual or not.
2031 class CXXMethodDecl : public FunctionDecl {
2032  void anchor() override;
2033 
2034 protected:
2036  SourceLocation StartLoc, const DeclarationNameInfo &NameInfo,
2037  QualType T, TypeSourceInfo *TInfo,
2038  StorageClass SC, bool isInline,
2039  bool isConstexpr, SourceLocation EndLocation)
2040  : FunctionDecl(DK, C, RD, StartLoc, NameInfo, T, TInfo,
2041  SC, isInline, isConstexpr) {
2042  if (EndLocation.isValid())
2043  setRangeEnd(EndLocation);
2044  }
2045 
2046 public:
2047  static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD,
2048  SourceLocation StartLoc,
2049  const DeclarationNameInfo &NameInfo,
2050  QualType T, TypeSourceInfo *TInfo,
2051  StorageClass SC,
2052  bool isInline,
2053  bool isConstexpr,
2054  SourceLocation EndLocation);
2055 
2056  static CXXMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2057 
2058  bool isStatic() const;
2059  bool isInstance() const { return !isStatic(); }
2060 
2061  /// Returns true if the given operator is implicitly static in a record
2062  /// context.
2064  // [class.free]p1:
2065  // Any allocation function for a class T is a static member
2066  // (even if not explicitly declared static).
2067  // [class.free]p6 Any deallocation function for a class X is a static member
2068  // (even if not explicitly declared static).
2069  return OOK == OO_New || OOK == OO_Array_New || OOK == OO_Delete ||
2070  OOK == OO_Array_Delete;
2071  }
2072 
2073  bool isConst() const { return getType()->castAs<FunctionType>()->isConst(); }
2074  bool isVolatile() const { return getType()->castAs<FunctionType>()->isVolatile(); }
2075 
2076  bool isVirtual() const {
2077  CXXMethodDecl *CD = const_cast<CXXMethodDecl*>(this)->getCanonicalDecl();
2078 
2079  // Member function is virtual if it is marked explicitly so, or if it is
2080  // declared in __interface -- then it is automatically pure virtual.
2081  if (CD->isVirtualAsWritten() || CD->isPure())
2082  return true;
2083 
2084  return CD->size_overridden_methods() != 0;
2085  }
2086 
2087  /// If it's possible to devirtualize a call to this method, return the called
2088  /// function. Otherwise, return null.
2089 
2090  /// \param Base The object on which this virtual function is called.
2091  /// \param IsAppleKext True if we are compiling for Apple kext.
2092  CXXMethodDecl *getDevirtualizedMethod(const Expr *Base, bool IsAppleKext);
2093 
2095  bool IsAppleKext) const {
2096  return const_cast<CXXMethodDecl *>(this)->getDevirtualizedMethod(
2097  Base, IsAppleKext);
2098  }
2099 
2100  /// Determine whether this is a usual deallocation function
2101  /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded
2102  /// delete or delete[] operator with a particular signature.
2103  bool isUsualDeallocationFunction() const;
2104 
2105  /// Determine whether this is a copy-assignment operator, regardless
2106  /// of whether it was declared implicitly or explicitly.
2107  bool isCopyAssignmentOperator() const;
2108 
2109  /// Determine whether this is a move assignment operator.
2110  bool isMoveAssignmentOperator() const;
2111 
2113  return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl());
2114  }
2116  return const_cast<CXXMethodDecl*>(this)->getCanonicalDecl();
2117  }
2118 
2120  return cast<CXXMethodDecl>(
2121  static_cast<FunctionDecl *>(this)->getMostRecentDecl());
2122  }
2124  return const_cast<CXXMethodDecl*>(this)->getMostRecentDecl();
2125  }
2126 
2127  /// True if this method is user-declared and was not
2128  /// deleted or defaulted on its first declaration.
2129  bool isUserProvided() const {
2130  auto *DeclAsWritten = this;
2131  if (auto *Pattern = getTemplateInstantiationPattern())
2132  DeclAsWritten = cast<CXXMethodDecl>(Pattern);
2133  return !(DeclAsWritten->isDeleted() ||
2134  DeclAsWritten->getCanonicalDecl()->isDefaulted());
2135  }
2136 
2137  void addOverriddenMethod(const CXXMethodDecl *MD);
2138 
2139  using method_iterator = const CXXMethodDecl *const *;
2140 
2141  method_iterator begin_overridden_methods() const;
2142  method_iterator end_overridden_methods() const;
2143  unsigned size_overridden_methods() const;
2144 
2146 
2147  overridden_method_range overridden_methods() const;
2148 
2149  /// Returns the parent of this method declaration, which
2150  /// is the class in which this method is defined.
2151  const CXXRecordDecl *getParent() const {
2152  return cast<CXXRecordDecl>(FunctionDecl::getParent());
2153  }
2154 
2155  /// Returns the parent of this method declaration, which
2156  /// is the class in which this method is defined.
2158  return const_cast<CXXRecordDecl *>(
2159  cast<CXXRecordDecl>(FunctionDecl::getParent()));
2160  }
2161 
2162  /// Returns the type of the \c this pointer.
2163  ///
2164  /// Should only be called for instance (i.e., non-static) methods. Note
2165  /// that for the call operator of a lambda closure type, this returns the
2166  /// desugared 'this' type (a pointer to the closure type), not the captured
2167  /// 'this' type.
2168  QualType getThisType(ASTContext &C) const;
2169 
2170  unsigned getTypeQualifiers() const {
2171  return getType()->getAs<FunctionProtoType>()->getTypeQuals();
2172  }
2173 
2174  /// Retrieve the ref-qualifier associated with this method.
2175  ///
2176  /// In the following example, \c f() has an lvalue ref-qualifier, \c g()
2177  /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier.
2178  /// @code
2179  /// struct X {
2180  /// void f() &;
2181  /// void g() &&;
2182  /// void h();
2183  /// };
2184  /// @endcode
2186  return getType()->getAs<FunctionProtoType>()->getRefQualifier();
2187  }
2188 
2189  bool hasInlineBody() const;
2190 
2191  /// Determine whether this is a lambda closure type's static member
2192  /// function that is used for the result of the lambda's conversion to
2193  /// function pointer (for a lambda with no captures).
2194  ///
2195  /// The function itself, if used, will have a placeholder body that will be
2196  /// supplied by IR generation to either forward to the function call operator
2197  /// or clone the function call operator.
2198  bool isLambdaStaticInvoker() const;
2199 
2200  /// Find the method in \p RD that corresponds to this one.
2201  ///
2202  /// Find if \p RD or one of the classes it inherits from override this method.
2203  /// If so, return it. \p RD is assumed to be a subclass of the class defining
2204  /// this method (or be the class itself), unless \p MayBeBase is set to true.
2205  CXXMethodDecl *
2206  getCorrespondingMethodInClass(const CXXRecordDecl *RD,
2207  bool MayBeBase = false);
2208 
2209  const CXXMethodDecl *
2211  bool MayBeBase = false) const {
2212  return const_cast<CXXMethodDecl *>(this)
2213  ->getCorrespondingMethodInClass(RD, MayBeBase);
2214  }
2215 
2216  // Implement isa/cast/dyncast/etc.
2217  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2218  static bool classofKind(Kind K) {
2219  return K >= firstCXXMethod && K <= lastCXXMethod;
2220  }
2221 };
2222 
2223 /// Represents a C++ base or member initializer.
2224 ///
2225 /// This is part of a constructor initializer that
2226 /// initializes one non-static member variable or one base class. For
2227 /// example, in the following, both 'A(a)' and 'f(3.14159)' are member
2228 /// initializers:
2229 ///
2230 /// \code
2231 /// class A { };
2232 /// class B : public A {
2233 /// float f;
2234 /// public:
2235 /// B(A& a) : A(a), f(3.14159) { }
2236 /// };
2237 /// \endcode
2238 class CXXCtorInitializer final {
2239  /// Either the base class name/delegating constructor type (stored as
2240  /// a TypeSourceInfo*), an normal field (FieldDecl), or an anonymous field
2241  /// (IndirectFieldDecl*) being initialized.
2242  llvm::PointerUnion3<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *>
2243  Initializee;
2244 
2245  /// The source location for the field name or, for a base initializer
2246  /// pack expansion, the location of the ellipsis.
2247  ///
2248  /// In the case of a delegating
2249  /// constructor, it will still include the type's source location as the
2250  /// Initializee points to the CXXConstructorDecl (to allow loop detection).
2251  SourceLocation MemberOrEllipsisLocation;
2252 
2253  /// The argument used to initialize the base or member, which may
2254  /// end up constructing an object (when multiple arguments are involved).
2255  Stmt *Init;
2256 
2257  /// Location of the left paren of the ctor-initializer.
2258  SourceLocation LParenLoc;
2259 
2260  /// Location of the right paren of the ctor-initializer.
2261  SourceLocation RParenLoc;
2262 
2263  /// If the initializee is a type, whether that type makes this
2264  /// a delegating initialization.
2265  unsigned IsDelegating : 1;
2266 
2267  /// If the initializer is a base initializer, this keeps track
2268  /// of whether the base is virtual or not.
2269  unsigned IsVirtual : 1;
2270 
2271  /// Whether or not the initializer is explicitly written
2272  /// in the sources.
2273  unsigned IsWritten : 1;
2274 
2275  /// If IsWritten is true, then this number keeps track of the textual order
2276  /// of this initializer in the original sources, counting from 0.
2277  unsigned SourceOrder : 13;
2278 
2279 public:
2280  /// Creates a new base-class initializer.
2281  explicit
2282  CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual,
2283  SourceLocation L, Expr *Init, SourceLocation R,
2284  SourceLocation EllipsisLoc);
2285 
2286  /// Creates a new member initializer.
2287  explicit
2288  CXXCtorInitializer(ASTContext &Context, FieldDecl *Member,
2289  SourceLocation MemberLoc, SourceLocation L, Expr *Init,
2290  SourceLocation R);
2291 
2292  /// Creates a new anonymous field initializer.
2293  explicit
2295  SourceLocation MemberLoc, SourceLocation L, Expr *Init,
2296  SourceLocation R);
2297 
2298  /// Creates a new delegating initializer.
2299  explicit
2300  CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo,
2301  SourceLocation L, Expr *Init, SourceLocation R);
2302 
2303  /// Determine whether this initializer is initializing a base class.
2304  bool isBaseInitializer() const {
2305  return Initializee.is<TypeSourceInfo*>() && !IsDelegating;
2306  }
2307 
2308  /// Determine whether this initializer is initializing a non-static
2309  /// data member.
2310  bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); }
2311 
2312  bool isAnyMemberInitializer() const {
2313  return isMemberInitializer() || isIndirectMemberInitializer();
2314  }
2315 
2317  return Initializee.is<IndirectFieldDecl*>();
2318  }
2319 
2320  /// Determine whether this initializer is an implicit initializer
2321  /// generated for a field with an initializer defined on the member
2322  /// declaration.
2323  ///
2324  /// In-class member initializers (also known as "non-static data member
2325  /// initializations", NSDMIs) were introduced in C++11.
2327  return Init->getStmtClass() == Stmt::CXXDefaultInitExprClass;
2328  }
2329 
2330  /// Determine whether this initializer is creating a delegating
2331  /// constructor.
2333  return Initializee.is<TypeSourceInfo*>() && IsDelegating;
2334  }
2335 
2336  /// Determine whether this initializer is a pack expansion.
2337  bool isPackExpansion() const {
2338  return isBaseInitializer() && MemberOrEllipsisLocation.isValid();
2339  }
2340 
2341  // For a pack expansion, returns the location of the ellipsis.
2343  assert(isPackExpansion() && "Initializer is not a pack expansion");
2344  return MemberOrEllipsisLocation;
2345  }
2346 
2347  /// If this is a base class initializer, returns the type of the
2348  /// base class with location information. Otherwise, returns an NULL
2349  /// type location.
2350  TypeLoc getBaseClassLoc() const;
2351 
2352  /// If this is a base class initializer, returns the type of the base class.
2353  /// Otherwise, returns null.
2354  const Type *getBaseClass() const;
2355 
2356  /// Returns whether the base is virtual or not.
2357  bool isBaseVirtual() const {
2358  assert(isBaseInitializer() && "Must call this on base initializer!");
2359 
2360  return IsVirtual;
2361  }
2362 
2363  /// Returns the declarator information for a base class or delegating
2364  /// initializer.
2366  return Initializee.dyn_cast<TypeSourceInfo *>();
2367  }
2368 
2369  /// If this is a member initializer, returns the declaration of the
2370  /// non-static data member being initialized. Otherwise, returns null.
2372  if (isMemberInitializer())
2373  return Initializee.get<FieldDecl*>();
2374  return nullptr;
2375  }
2376 
2378  if (isMemberInitializer())
2379  return Initializee.get<FieldDecl*>();
2380  if (isIndirectMemberInitializer())
2381  return Initializee.get<IndirectFieldDecl*>()->getAnonField();
2382  return nullptr;
2383  }
2384 
2386  if (isIndirectMemberInitializer())
2387  return Initializee.get<IndirectFieldDecl*>();
2388  return nullptr;
2389  }
2390 
2392  return MemberOrEllipsisLocation;
2393  }
2394 
2395  /// Determine the source location of the initializer.
2396  SourceLocation getSourceLocation() const;
2397 
2398  /// Determine the source range covering the entire initializer.
2399  SourceRange getSourceRange() const LLVM_READONLY;
2400 
2401  /// Determine whether this initializer is explicitly written
2402  /// in the source code.
2403  bool isWritten() const { return IsWritten; }
2404 
2405  /// Return the source position of the initializer, counting from 0.
2406  /// If the initializer was implicit, -1 is returned.
2407  int getSourceOrder() const {
2408  return IsWritten ? static_cast<int>(SourceOrder) : -1;
2409  }
2410 
2411  /// Set the source order of this initializer.
2412  ///
2413  /// This can only be called once for each initializer; it cannot be called
2414  /// on an initializer having a positive number of (implicit) array indices.
2415  ///
2416  /// This assumes that the initializer was written in the source code, and
2417  /// ensures that isWritten() returns true.
2418  void setSourceOrder(int Pos) {
2419  assert(!IsWritten &&
2420  "setSourceOrder() used on implicit initializer");
2421  assert(SourceOrder == 0 &&
2422  "calling twice setSourceOrder() on the same initializer");
2423  assert(Pos >= 0 &&
2424  "setSourceOrder() used to make an initializer implicit");
2425  IsWritten = true;
2426  SourceOrder = static_cast<unsigned>(Pos);
2427  }
2428 
2429  SourceLocation getLParenLoc() const { return LParenLoc; }
2430  SourceLocation getRParenLoc() const { return RParenLoc; }
2431 
2432  /// Get the initializer.
2433  Expr *getInit() const { return static_cast<Expr *>(Init); }
2434 };
2435 
2436 /// Description of a constructor that was inherited from a base class.
2438  ConstructorUsingShadowDecl *Shadow = nullptr;
2439  CXXConstructorDecl *BaseCtor = nullptr;
2440 
2441 public:
2442  InheritedConstructor() = default;
2444  CXXConstructorDecl *BaseCtor)
2445  : Shadow(Shadow), BaseCtor(BaseCtor) {}
2446 
2447  explicit operator bool() const { return Shadow; }
2448 
2449  ConstructorUsingShadowDecl *getShadowDecl() const { return Shadow; }
2450  CXXConstructorDecl *getConstructor() const { return BaseCtor; }
2451 };
2452 
2453 /// Represents a C++ constructor within a class.
2454 ///
2455 /// For example:
2456 ///
2457 /// \code
2458 /// class X {
2459 /// public:
2460 /// explicit X(int); // represented by a CXXConstructorDecl.
2461 /// };
2462 /// \endcode
2464  : public CXXMethodDecl,
2465  private llvm::TrailingObjects<CXXConstructorDecl, InheritedConstructor> {
2466  /// \name Support for base and member initializers.
2467  /// \{
2468  /// The arguments used to initialize the base or member.
2469  LazyCXXCtorInitializersPtr CtorInitializers;
2470  unsigned NumCtorInitializers : 31;
2471  /// \}
2472 
2473  /// Whether this constructor declaration is an implicitly-declared
2474  /// inheriting constructor.
2475  unsigned IsInheritingConstructor : 1;
2476 
2478  const DeclarationNameInfo &NameInfo,
2479  QualType T, TypeSourceInfo *TInfo,
2480  bool isExplicitSpecified, bool isInline,
2481  bool isImplicitlyDeclared, bool isConstexpr,
2482  InheritedConstructor Inherited)
2483  : CXXMethodDecl(CXXConstructor, C, RD, StartLoc, NameInfo, T, TInfo,
2484  SC_None, isInline, isConstexpr, SourceLocation()),
2485  NumCtorInitializers(0), IsInheritingConstructor((bool)Inherited) {
2486  setImplicit(isImplicitlyDeclared);
2487  if (Inherited)
2488  *getTrailingObjects<InheritedConstructor>() = Inherited;
2489  IsExplicitSpecified = isExplicitSpecified;
2490  }
2491 
2492  void anchor() override;
2493 
2494 public:
2495  friend class ASTDeclReader;
2496  friend class ASTDeclWriter;
2498 
2499  static CXXConstructorDecl *CreateDeserialized(ASTContext &C, unsigned ID,
2500  bool InheritsConstructor);
2501  static CXXConstructorDecl *
2502  Create(ASTContext &C, CXXRecordDecl *RD, SourceLocation StartLoc,
2503  const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo,
2504  bool isExplicit, bool isInline, bool isImplicitlyDeclared,
2505  bool isConstexpr,
2507 
2508  /// Iterates through the member/base initializer list.
2510 
2511  /// Iterates through the member/base initializer list.
2513 
2514  using init_range = llvm::iterator_range<init_iterator>;
2515  using init_const_range = llvm::iterator_range<init_const_iterator>;
2516 
2517  init_range inits() { return init_range(init_begin(), init_end()); }
2519  return init_const_range(init_begin(), init_end());
2520  }
2521 
2522  /// Retrieve an iterator to the first initializer.
2524  const auto *ConstThis = this;
2525  return const_cast<init_iterator>(ConstThis->init_begin());
2526  }
2527 
2528  /// Retrieve an iterator to the first initializer.
2529  init_const_iterator init_begin() const;
2530 
2531  /// Retrieve an iterator past the last initializer.
2533  return init_begin() + NumCtorInitializers;
2534  }
2535 
2536  /// Retrieve an iterator past the last initializer.
2538  return init_begin() + NumCtorInitializers;
2539  }
2540 
2541  using init_reverse_iterator = std::reverse_iterator<init_iterator>;
2543  std::reverse_iterator<init_const_iterator>;
2544 
2546  return init_reverse_iterator(init_end());
2547  }
2549  return init_const_reverse_iterator(init_end());
2550  }
2551 
2553  return init_reverse_iterator(init_begin());
2554  }
2556  return init_const_reverse_iterator(init_begin());
2557  }
2558 
2559  /// Determine the number of arguments used to initialize the member
2560  /// or base.
2561  unsigned getNumCtorInitializers() const {
2562  return NumCtorInitializers;
2563  }
2564 
2565  void setNumCtorInitializers(unsigned numCtorInitializers) {
2566  NumCtorInitializers = numCtorInitializers;
2567  }
2568 
2570  CtorInitializers = Initializers;
2571  }
2572 
2573  /// Whether this function is marked as explicit explicitly.
2574  bool isExplicitSpecified() const { return IsExplicitSpecified; }
2575 
2576  /// Whether this function is explicit.
2577  bool isExplicit() const {
2578  return getCanonicalDecl()->isExplicitSpecified();
2579  }
2580 
2581  /// Determine whether this constructor is a delegating constructor.
2583  return (getNumCtorInitializers() == 1) &&
2584  init_begin()[0]->isDelegatingInitializer();
2585  }
2586 
2587  /// When this constructor delegates to another, retrieve the target.
2588  CXXConstructorDecl *getTargetConstructor() const;
2589 
2590  /// Whether this constructor is a default
2591  /// constructor (C++ [class.ctor]p5), which can be used to
2592  /// default-initialize a class of this type.
2593  bool isDefaultConstructor() const;
2594 
2595  /// Whether this constructor is a copy constructor (C++ [class.copy]p2,
2596  /// which can be used to copy the class.
2597  ///
2598  /// \p TypeQuals will be set to the qualifiers on the
2599  /// argument type. For example, \p TypeQuals would be set to \c
2600  /// Qualifiers::Const for the following copy constructor:
2601  ///
2602  /// \code
2603  /// class X {
2604  /// public:
2605  /// X(const X&);
2606  /// };
2607  /// \endcode
2608  bool isCopyConstructor(unsigned &TypeQuals) const;
2609 
2610  /// Whether this constructor is a copy
2611  /// constructor (C++ [class.copy]p2, which can be used to copy the
2612  /// class.
2613  bool isCopyConstructor() const {
2614  unsigned TypeQuals = 0;
2615  return isCopyConstructor(TypeQuals);
2616  }
2617 
2618  /// Determine whether this constructor is a move constructor
2619  /// (C++11 [class.copy]p3), which can be used to move values of the class.
2620  ///
2621  /// \param TypeQuals If this constructor is a move constructor, will be set
2622  /// to the type qualifiers on the referent of the first parameter's type.
2623  bool isMoveConstructor(unsigned &TypeQuals) const;
2624 
2625  /// Determine whether this constructor is a move constructor
2626  /// (C++11 [class.copy]p3), which can be used to move values of the class.
2627  bool isMoveConstructor() const {
2628  unsigned TypeQuals = 0;
2629  return isMoveConstructor(TypeQuals);
2630  }
2631 
2632  /// Determine whether this is a copy or move constructor.
2633  ///
2634  /// \param TypeQuals Will be set to the type qualifiers on the reference
2635  /// parameter, if in fact this is a copy or move constructor.
2636  bool isCopyOrMoveConstructor(unsigned &TypeQuals) const;
2637 
2638  /// Determine whether this a copy or move constructor.
2640  unsigned Quals;
2641  return isCopyOrMoveConstructor(Quals);
2642  }
2643 
2644  /// Whether this constructor is a
2645  /// converting constructor (C++ [class.conv.ctor]), which can be
2646  /// used for user-defined conversions.
2647  bool isConvertingConstructor(bool AllowExplicit) const;
2648 
2649  /// Determine whether this is a member template specialization that
2650  /// would copy the object to itself. Such constructors are never used to copy
2651  /// an object.
2652  bool isSpecializationCopyingObject() const;
2653 
2654  /// Determine whether this is an implicit constructor synthesized to
2655  /// model a call to a constructor inherited from a base class.
2656  bool isInheritingConstructor() const { return IsInheritingConstructor; }
2657 
2658  /// Get the constructor that this inheriting constructor is based on.
2660  return IsInheritingConstructor ? *getTrailingObjects<InheritedConstructor>()
2662  }
2663 
2665  return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl());
2666  }
2668  return const_cast<CXXConstructorDecl*>(this)->getCanonicalDecl();
2669  }
2670 
2671  // Implement isa/cast/dyncast/etc.
2672  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2673  static bool classofKind(Kind K) { return K == CXXConstructor; }
2674 };
2675 
2676 /// Represents a C++ destructor within a class.
2677 ///
2678 /// For example:
2679 ///
2680 /// \code
2681 /// class X {
2682 /// public:
2683 /// ~X(); // represented by a CXXDestructorDecl.
2684 /// };
2685 /// \endcode
2687  friend class ASTDeclReader;
2688  friend class ASTDeclWriter;
2689 
2690  // FIXME: Don't allocate storage for these except in the first declaration
2691  // of a virtual destructor.
2692  FunctionDecl *OperatorDelete = nullptr;
2693  Expr *OperatorDeleteThisArg = nullptr;
2694 
2696  const DeclarationNameInfo &NameInfo,
2697  QualType T, TypeSourceInfo *TInfo,
2698  bool isInline, bool isImplicitlyDeclared)
2699  : CXXMethodDecl(CXXDestructor, C, RD, StartLoc, NameInfo, T, TInfo,
2700  SC_None, isInline, /*isConstexpr=*/false, SourceLocation())
2701  {
2702  setImplicit(isImplicitlyDeclared);
2703  }
2704 
2705  void anchor() override;
2706 
2707 public:
2709  SourceLocation StartLoc,
2710  const DeclarationNameInfo &NameInfo,
2711  QualType T, TypeSourceInfo* TInfo,
2712  bool isInline,
2713  bool isImplicitlyDeclared);
2714  static CXXDestructorDecl *CreateDeserialized(ASTContext & C, unsigned ID);
2715 
2716  void setOperatorDelete(FunctionDecl *OD, Expr *ThisArg);
2717 
2719  return getCanonicalDecl()->OperatorDelete;
2720  }
2721 
2723  return getCanonicalDecl()->OperatorDeleteThisArg;
2724  }
2725 
2727  return cast<CXXDestructorDecl>(FunctionDecl::getCanonicalDecl());
2728  }
2730  return const_cast<CXXDestructorDecl*>(this)->getCanonicalDecl();
2731  }
2732 
2733  // Implement isa/cast/dyncast/etc.
2734  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2735  static bool classofKind(Kind K) { return K == CXXDestructor; }
2736 };
2737 
2738 /// Represents a C++ conversion function within a class.
2739 ///
2740 /// For example:
2741 ///
2742 /// \code
2743 /// class X {
2744 /// public:
2745 /// operator bool();
2746 /// };
2747 /// \endcode
2750  const DeclarationNameInfo &NameInfo, QualType T,
2751  TypeSourceInfo *TInfo, bool isInline,
2752  bool isExplicitSpecified, bool isConstexpr,
2753  SourceLocation EndLocation)
2754  : CXXMethodDecl(CXXConversion, C, RD, StartLoc, NameInfo, T, TInfo,
2755  SC_None, isInline, isConstexpr, EndLocation) {
2756  IsExplicitSpecified = isExplicitSpecified;
2757  }
2758 
2759  void anchor() override;
2760 
2761 public:
2762  friend class ASTDeclReader;
2763  friend class ASTDeclWriter;
2764 
2766  SourceLocation StartLoc,
2767  const DeclarationNameInfo &NameInfo,
2768  QualType T, TypeSourceInfo *TInfo,
2769  bool isInline, bool isExplicit,
2770  bool isConstexpr,
2771  SourceLocation EndLocation);
2772  static CXXConversionDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2773 
2774  /// Whether this function is marked as explicit explicitly.
2775  bool isExplicitSpecified() const { return IsExplicitSpecified; }
2776 
2777  /// Whether this function is explicit.
2778  bool isExplicit() const {
2779  return getCanonicalDecl()->isExplicitSpecified();
2780  }
2781 
2782  /// Returns the type that this conversion function is converting to.
2784  return getType()->getAs<FunctionType>()->getReturnType();
2785  }
2786 
2787  /// Determine whether this conversion function is a conversion from
2788  /// a lambda closure type to a block pointer.
2789  bool isLambdaToBlockPointerConversion() const;
2790 
2792  return cast<CXXConversionDecl>(FunctionDecl::getCanonicalDecl());
2793  }
2795  return const_cast<CXXConversionDecl*>(this)->getCanonicalDecl();
2796  }
2797 
2798  // Implement isa/cast/dyncast/etc.
2799  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2800  static bool classofKind(Kind K) { return K == CXXConversion; }
2801 };
2802 
2803 /// Represents a linkage specification.
2804 ///
2805 /// For example:
2806 /// \code
2807 /// extern "C" void foo();
2808 /// \endcode
2809 class LinkageSpecDecl : public Decl, public DeclContext {
2810  virtual void anchor();
2811 
2812 public:
2813  /// Represents the language in a linkage specification.
2814  ///
2815  /// The values are part of the serialization ABI for
2816  /// ASTs and cannot be changed without altering that ABI. To help
2817  /// ensure a stable ABI for this, we choose the DW_LANG_ encodings
2818  /// from the dwarf standard.
2820  lang_c = /* DW_LANG_C */ 0x0002,
2821  lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004
2822  };
2823 
2824 private:
2825  /// The language for this linkage specification.
2826  unsigned Language : 3;
2827 
2828  /// True if this linkage spec has braces.
2829  ///
2830  /// This is needed so that hasBraces() returns the correct result while the
2831  /// linkage spec body is being parsed. Once RBraceLoc has been set this is
2832  /// not used, so it doesn't need to be serialized.
2833  unsigned HasBraces : 1;
2834 
2835  /// The source location for the extern keyword.
2836  SourceLocation ExternLoc;
2837 
2838  /// The source location for the right brace (if valid).
2839  SourceLocation RBraceLoc;
2840 
2842  SourceLocation LangLoc, LanguageIDs lang, bool HasBraces)
2843  : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec),
2844  Language(lang), HasBraces(HasBraces), ExternLoc(ExternLoc),
2845  RBraceLoc(SourceLocation()) {}
2846 
2847 public:
2848  static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC,
2849  SourceLocation ExternLoc,
2850  SourceLocation LangLoc, LanguageIDs Lang,
2851  bool HasBraces);
2852  static LinkageSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2853 
2854  /// Return the language specified by this linkage specification.
2855  LanguageIDs getLanguage() const { return LanguageIDs(Language); }
2856 
2857  /// Set the language specified by this linkage specification.
2858  void setLanguage(LanguageIDs L) { Language = L; }
2859 
2860  /// Determines whether this linkage specification had braces in
2861  /// its syntactic form.
2862  bool hasBraces() const {
2863  assert(!RBraceLoc.isValid() || HasBraces);
2864  return HasBraces;
2865  }
2866 
2867  SourceLocation getExternLoc() const { return ExternLoc; }
2868  SourceLocation getRBraceLoc() const { return RBraceLoc; }
2869  void setExternLoc(SourceLocation L) { ExternLoc = L; }
2871  RBraceLoc = L;
2872  HasBraces = RBraceLoc.isValid();
2873  }
2874 
2875  SourceLocation getLocEnd() const LLVM_READONLY {
2876  if (hasBraces())
2877  return getRBraceLoc();
2878  // No braces: get the end location of the (only) declaration in context
2879  // (if present).
2880  return decls_empty() ? getLocation() : decls_begin()->getLocEnd();
2881  }
2882 
2883  SourceRange getSourceRange() const override LLVM_READONLY {
2884  return SourceRange(ExternLoc, getLocEnd());
2885  }
2886 
2887  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2888  static bool classofKind(Kind K) { return K == LinkageSpec; }
2889 
2891  return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D));
2892  }
2893 
2895  return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC));
2896  }
2897 };
2898 
2899 /// Represents C++ using-directive.
2900 ///
2901 /// For example:
2902 /// \code
2903 /// using namespace std;
2904 /// \endcode
2905 ///
2906 /// \note UsingDirectiveDecl should be Decl not NamedDecl, but we provide
2907 /// artificial names for all using-directives in order to store
2908 /// them in DeclContext effectively.
2910  /// The location of the \c using keyword.
2911  SourceLocation UsingLoc;
2912 
2913  /// The location of the \c namespace keyword.
2914  SourceLocation NamespaceLoc;
2915 
2916  /// The nested-name-specifier that precedes the namespace.
2917  NestedNameSpecifierLoc QualifierLoc;
2918 
2919  /// The namespace nominated by this using-directive.
2920  NamedDecl *NominatedNamespace;
2921 
2922  /// Enclosing context containing both using-directive and nominated
2923  /// namespace.
2924  DeclContext *CommonAncestor;
2925 
2927  SourceLocation NamespcLoc,
2928  NestedNameSpecifierLoc QualifierLoc,
2929  SourceLocation IdentLoc,
2930  NamedDecl *Nominated,
2931  DeclContext *CommonAncestor)
2932  : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc),
2933  NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc),
2934  NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) {}
2935 
2936  /// Returns special DeclarationName used by using-directives.
2937  ///
2938  /// This is only used by DeclContext for storing UsingDirectiveDecls in
2939  /// its lookup structure.
2940  static DeclarationName getName() {
2942  }
2943 
2944  void anchor() override;
2945 
2946 public:
2947  friend class ASTDeclReader;
2948 
2949  // Friend for getUsingDirectiveName.
2950  friend class DeclContext;
2951 
2952  /// Retrieve the nested-name-specifier that qualifies the
2953  /// name of the namespace, with source-location information.
2954  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2955 
2956  /// Retrieve the nested-name-specifier that qualifies the
2957  /// name of the namespace.
2959  return QualifierLoc.getNestedNameSpecifier();
2960  }
2961 
2962  NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; }
2964  return NominatedNamespace;
2965  }
2966 
2967  /// Returns the namespace nominated by this using-directive.
2968  NamespaceDecl *getNominatedNamespace();
2969 
2971  return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace();
2972  }
2973 
2974  /// Returns the common ancestor context of this using-directive and
2975  /// its nominated namespace.
2976  DeclContext *getCommonAncestor() { return CommonAncestor; }
2977  const DeclContext *getCommonAncestor() const { return CommonAncestor; }
2978 
2979  /// Return the location of the \c using keyword.
2980  SourceLocation getUsingLoc() const { return UsingLoc; }
2981 
2982  // FIXME: Could omit 'Key' in name.
2983  /// Returns the location of the \c namespace keyword.
2984  SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; }
2985 
2986  /// Returns the location of this using declaration's identifier.
2987  SourceLocation getIdentLocation() const { return getLocation(); }
2988 
2990  SourceLocation UsingLoc,
2991  SourceLocation NamespaceLoc,
2992  NestedNameSpecifierLoc QualifierLoc,
2993  SourceLocation IdentLoc,
2994  NamedDecl *Nominated,
2995  DeclContext *CommonAncestor);
2996  static UsingDirectiveDecl *CreateDeserialized(ASTContext &C, unsigned ID);
2997 
2998  SourceRange getSourceRange() const override LLVM_READONLY {
2999  return SourceRange(UsingLoc, getLocation());
3000  }
3001 
3002  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3003  static bool classofKind(Kind K) { return K == UsingDirective; }
3004 };
3005 
3006 /// Represents a C++ namespace alias.
3007 ///
3008 /// For example:
3009 ///
3010 /// \code
3011 /// namespace Foo = Bar;
3012 /// \endcode
3014  public Redeclarable<NamespaceAliasDecl> {
3015  friend class ASTDeclReader;
3016 
3017  /// The location of the \c namespace keyword.
3018  SourceLocation NamespaceLoc;
3019 
3020  /// The location of the namespace's identifier.
3021  ///
3022  /// This is accessed by TargetNameLoc.
3023  SourceLocation IdentLoc;
3024 
3025  /// The nested-name-specifier that precedes the namespace.
3026  NestedNameSpecifierLoc QualifierLoc;
3027 
3028  /// The Decl that this alias points to, either a NamespaceDecl or
3029  /// a NamespaceAliasDecl.
3030  NamedDecl *Namespace;
3031 
3033  SourceLocation NamespaceLoc, SourceLocation AliasLoc,
3034  IdentifierInfo *Alias, NestedNameSpecifierLoc QualifierLoc,
3035  SourceLocation IdentLoc, NamedDecl *Namespace)
3036  : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), redeclarable_base(C),
3037  NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc),
3038  QualifierLoc(QualifierLoc), Namespace(Namespace) {}
3039 
3040  void anchor() override;
3041 
3043 
3044  NamespaceAliasDecl *getNextRedeclarationImpl() override;
3045  NamespaceAliasDecl *getPreviousDeclImpl() override;
3046  NamespaceAliasDecl *getMostRecentDeclImpl() override;
3047 
3048 public:
3050  SourceLocation NamespaceLoc,
3051  SourceLocation AliasLoc,
3052  IdentifierInfo *Alias,
3053  NestedNameSpecifierLoc QualifierLoc,
3054  SourceLocation IdentLoc,
3055  NamedDecl *Namespace);
3056 
3057  static NamespaceAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3058 
3060  using redecl_iterator = redeclarable_base::redecl_iterator;
3061 
3062  using redeclarable_base::redecls_begin;
3063  using redeclarable_base::redecls_end;
3064  using redeclarable_base::redecls;
3065  using redeclarable_base::getPreviousDecl;
3066  using redeclarable_base::getMostRecentDecl;
3067 
3069  return getFirstDecl();
3070  }
3072  return getFirstDecl();
3073  }
3074 
3075  /// Retrieve the nested-name-specifier that qualifies the
3076  /// name of the namespace, with source-location information.
3077  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3078 
3079  /// Retrieve the nested-name-specifier that qualifies the
3080  /// name of the namespace.
3082  return QualifierLoc.getNestedNameSpecifier();
3083  }
3084 
3085  /// Retrieve the namespace declaration aliased by this directive.
3087  if (auto *AD = dyn_cast<NamespaceAliasDecl>(Namespace))
3088  return AD->getNamespace();
3089 
3090  return cast<NamespaceDecl>(Namespace);
3091  }
3092 
3093  const NamespaceDecl *getNamespace() const {
3094  return const_cast<NamespaceAliasDecl *>(this)->getNamespace();
3095  }
3096 
3097  /// Returns the location of the alias name, i.e. 'foo' in
3098  /// "namespace foo = ns::bar;".
3099  SourceLocation getAliasLoc() const { return getLocation(); }
3100 
3101  /// Returns the location of the \c namespace keyword.
3102  SourceLocation getNamespaceLoc() const { return NamespaceLoc; }
3103 
3104  /// Returns the location of the identifier in the named namespace.
3105  SourceLocation getTargetNameLoc() const { return IdentLoc; }
3106 
3107  /// Retrieve the namespace that this alias refers to, which
3108  /// may either be a NamespaceDecl or a NamespaceAliasDecl.
3109  NamedDecl *getAliasedNamespace() const { return Namespace; }
3110 
3111  SourceRange getSourceRange() const override LLVM_READONLY {
3112  return SourceRange(NamespaceLoc, IdentLoc);
3113  }
3114 
3115  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3116  static bool classofKind(Kind K) { return K == NamespaceAlias; }
3117 };
3118 
3119 /// Represents a shadow declaration introduced into a scope by a
3120 /// (resolved) using declaration.
3121 ///
3122 /// For example,
3123 /// \code
3124 /// namespace A {
3125 /// void foo();
3126 /// }
3127 /// namespace B {
3128 /// using A::foo; // <- a UsingDecl
3129 /// // Also creates a UsingShadowDecl for A::foo() in B
3130 /// }
3131 /// \endcode
3132 class UsingShadowDecl : public NamedDecl, public Redeclarable<UsingShadowDecl> {
3133  friend class UsingDecl;
3134 
3135  /// The referenced declaration.
3136  NamedDecl *Underlying = nullptr;
3137 
3138  /// The using declaration which introduced this decl or the next using
3139  /// shadow declaration contained in the aforementioned using declaration.
3140  NamedDecl *UsingOrNextShadow = nullptr;
3141 
3142  void anchor() override;
3143 
3145 
3146  UsingShadowDecl *getNextRedeclarationImpl() override {
3147  return getNextRedeclaration();
3148  }
3149 
3150  UsingShadowDecl *getPreviousDeclImpl() override {
3151  return getPreviousDecl();
3152  }
3153 
3154  UsingShadowDecl *getMostRecentDeclImpl() override {
3155  return getMostRecentDecl();
3156  }
3157 
3158 protected:
3160  UsingDecl *Using, NamedDecl *Target);
3162 
3163 public:
3164  friend class ASTDeclReader;
3165  friend class ASTDeclWriter;
3166 
3168  SourceLocation Loc, UsingDecl *Using,
3169  NamedDecl *Target) {
3170  return new (C, DC) UsingShadowDecl(UsingShadow, C, DC, Loc, Using, Target);
3171  }
3172 
3173  static UsingShadowDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3174 
3176  using redecl_iterator = redeclarable_base::redecl_iterator;
3177 
3178  using redeclarable_base::redecls_begin;
3179  using redeclarable_base::redecls_end;
3180  using redeclarable_base::redecls;
3181  using redeclarable_base::getPreviousDecl;
3182  using redeclarable_base::getMostRecentDecl;
3183  using redeclarable_base::isFirstDecl;
3184 
3186  return getFirstDecl();
3187  }
3189  return getFirstDecl();
3190  }
3191 
3192  /// Gets the underlying declaration which has been brought into the
3193  /// local scope.
3194  NamedDecl *getTargetDecl() const { return Underlying; }
3195 
3196  /// Sets the underlying declaration which has been brought into the
3197  /// local scope.
3199  assert(ND && "Target decl is null!");
3200  Underlying = ND;
3201  // A UsingShadowDecl is never a friend or local extern declaration, even
3202  // if it is a shadow declaration for one.
3204  ND->getIdentifierNamespace() &
3205  ~(IDNS_OrdinaryFriend | IDNS_TagFriend | IDNS_LocalExtern);
3206  }
3207 
3208  /// Gets the using declaration to which this declaration is tied.
3209  UsingDecl *getUsingDecl() const;
3210 
3211  /// The next using shadow declaration contained in the shadow decl
3212  /// chain of the using declaration which introduced this decl.
3214  return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow);
3215  }
3216 
3217  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3218  static bool classofKind(Kind K) {
3219  return K == Decl::UsingShadow || K == Decl::ConstructorUsingShadow;
3220  }
3221 };
3222 
3223 /// Represents a shadow constructor declaration introduced into a
3224 /// class by a C++11 using-declaration that names a constructor.
3225 ///
3226 /// For example:
3227 /// \code
3228 /// struct Base { Base(int); };
3229 /// struct Derived {
3230 /// using Base::Base; // creates a UsingDecl and a ConstructorUsingShadowDecl
3231 /// };
3232 /// \endcode
3234  /// If this constructor using declaration inherted the constructor
3235  /// from an indirect base class, this is the ConstructorUsingShadowDecl
3236  /// in the named direct base class from which the declaration was inherited.
3237  ConstructorUsingShadowDecl *NominatedBaseClassShadowDecl = nullptr;
3238 
3239  /// If this constructor using declaration inherted the constructor
3240  /// from an indirect base class, this is the ConstructorUsingShadowDecl
3241  /// that will be used to construct the unique direct or virtual base class
3242  /// that receives the constructor arguments.
3243  ConstructorUsingShadowDecl *ConstructedBaseClassShadowDecl = nullptr;
3244 
3245  /// \c true if the constructor ultimately named by this using shadow
3246  /// declaration is within a virtual base class subobject of the class that
3247  /// contains this declaration.
3248  unsigned IsVirtual : 1;
3249 
3251  UsingDecl *Using, NamedDecl *Target,
3252  bool TargetInVirtualBase)
3253  : UsingShadowDecl(ConstructorUsingShadow, C, DC, Loc, Using,
3254  Target->getUnderlyingDecl()),
3255  NominatedBaseClassShadowDecl(
3256  dyn_cast<ConstructorUsingShadowDecl>(Target)),
3257  ConstructedBaseClassShadowDecl(NominatedBaseClassShadowDecl),
3258  IsVirtual(TargetInVirtualBase) {
3259  // If we found a constructor that chains to a constructor for a virtual
3260  // base, we should directly call that virtual base constructor instead.
3261  // FIXME: This logic belongs in Sema.
3262  if (NominatedBaseClassShadowDecl &&
3263  NominatedBaseClassShadowDecl->constructsVirtualBase()) {
3264  ConstructedBaseClassShadowDecl =
3265  NominatedBaseClassShadowDecl->ConstructedBaseClassShadowDecl;
3266  IsVirtual = true;
3267  }
3268  }
3269 
3271  : UsingShadowDecl(ConstructorUsingShadow, C, Empty), IsVirtual(false) {}
3272 
3273  void anchor() override;
3274 
3275 public:
3276  friend class ASTDeclReader;
3277  friend class ASTDeclWriter;
3278 
3280  SourceLocation Loc,
3281  UsingDecl *Using, NamedDecl *Target,
3282  bool IsVirtual);
3283  static ConstructorUsingShadowDecl *CreateDeserialized(ASTContext &C,
3284  unsigned ID);
3285 
3286  /// Returns the parent of this using shadow declaration, which
3287  /// is the class in which this is declared.
3288  //@{
3289  const CXXRecordDecl *getParent() const {
3290  return cast<CXXRecordDecl>(getDeclContext());
3291  }
3293  return cast<CXXRecordDecl>(getDeclContext());
3294  }
3295  //@}
3296 
3297  /// Get the inheriting constructor declaration for the direct base
3298  /// class from which this using shadow declaration was inherited, if there is
3299  /// one. This can be different for each redeclaration of the same shadow decl.
3301  return NominatedBaseClassShadowDecl;
3302  }
3303 
3304  /// Get the inheriting constructor declaration for the base class
3305  /// for which we don't have an explicit initializer, if there is one.
3307  return ConstructedBaseClassShadowDecl;
3308  }
3309 
3310  /// Get the base class that was named in the using declaration. This
3311  /// can be different for each redeclaration of this same shadow decl.
3312  CXXRecordDecl *getNominatedBaseClass() const;
3313 
3314  /// Get the base class whose constructor or constructor shadow
3315  /// declaration is passed the constructor arguments.
3317  return cast<CXXRecordDecl>((ConstructedBaseClassShadowDecl
3318  ? ConstructedBaseClassShadowDecl
3319  : getTargetDecl())
3320  ->getDeclContext());
3321  }
3322 
3323  /// Returns \c true if the constructed base class is a virtual base
3324  /// class subobject of this declaration's class.
3325  bool constructsVirtualBase() const {
3326  return IsVirtual;
3327  }
3328 
3329  /// Get the constructor or constructor template in the derived class
3330  /// correspnding to this using shadow declaration, if it has been implicitly
3331  /// declared already.
3332  CXXConstructorDecl *getConstructor() const;
3333  void setConstructor(NamedDecl *Ctor);
3334 
3335  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3336  static bool classofKind(Kind K) { return K == ConstructorUsingShadow; }
3337 };
3338 
3339 /// Represents a C++ using-declaration.
3340 ///
3341 /// For example:
3342 /// \code
3343 /// using someNameSpace::someIdentifier;
3344 /// \endcode
3345 class UsingDecl : public NamedDecl, public Mergeable<UsingDecl> {
3346  /// The source location of the 'using' keyword itself.
3347  SourceLocation UsingLocation;
3348 
3349  /// The nested-name-specifier that precedes the name.
3350  NestedNameSpecifierLoc QualifierLoc;
3351 
3352  /// Provides source/type location info for the declaration name
3353  /// embedded in the ValueDecl base class.
3354  DeclarationNameLoc DNLoc;
3355 
3356  /// The first shadow declaration of the shadow decl chain associated
3357  /// with this using declaration.
3358  ///
3359  /// The bool member of the pair store whether this decl has the \c typename
3360  /// keyword.
3361  llvm::PointerIntPair<UsingShadowDecl *, 1, bool> FirstUsingShadow;
3362 
3364  NestedNameSpecifierLoc QualifierLoc,
3365  const DeclarationNameInfo &NameInfo, bool HasTypenameKeyword)
3366  : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()),
3367  UsingLocation(UL), QualifierLoc(QualifierLoc),
3368  DNLoc(NameInfo.getInfo()), FirstUsingShadow(nullptr, HasTypenameKeyword) {
3369  }
3370 
3371  void anchor() override;
3372 
3373 public:
3374  friend class ASTDeclReader;
3375  friend class ASTDeclWriter;
3376 
3377  /// Return the source location of the 'using' keyword.
3378  SourceLocation getUsingLoc() const { return UsingLocation; }
3379 
3380  /// Set the source location of the 'using' keyword.
3381  void setUsingLoc(SourceLocation L) { UsingLocation = L; }
3382 
3383  /// Retrieve the nested-name-specifier that qualifies the name,
3384  /// with source-location information.
3385  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3386 
3387  /// Retrieve the nested-name-specifier that qualifies the name.
3389  return QualifierLoc.getNestedNameSpecifier();
3390  }
3391 
3393  return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
3394  }
3395 
3396  /// Return true if it is a C++03 access declaration (no 'using').
3397  bool isAccessDeclaration() const { return UsingLocation.isInvalid(); }
3398 
3399  /// Return true if the using declaration has 'typename'.
3400  bool hasTypename() const { return FirstUsingShadow.getInt(); }
3401 
3402  /// Sets whether the using declaration has 'typename'.
3403  void setTypename(bool TN) { FirstUsingShadow.setInt(TN); }
3404 
3405  /// Iterates through the using shadow declarations associated with
3406  /// this using declaration.
3408  /// The current using shadow declaration.
3409  UsingShadowDecl *Current = nullptr;
3410 
3411  public:
3415  using iterator_category = std::forward_iterator_tag;
3417 
3418  shadow_iterator() = default;
3419  explicit shadow_iterator(UsingShadowDecl *C) : Current(C) {}
3420 
3421  reference operator*() const { return Current; }
3422  pointer operator->() const { return Current; }
3423 
3425  Current = Current->getNextUsingShadowDecl();
3426  return *this;
3427  }
3428 
3430  shadow_iterator tmp(*this);
3431  ++(*this);
3432  return tmp;
3433  }
3434 
3436  return x.Current == y.Current;
3437  }
3439  return x.Current != y.Current;
3440  }
3441  };
3442 
3443  using shadow_range = llvm::iterator_range<shadow_iterator>;
3444 
3446  return shadow_range(shadow_begin(), shadow_end());
3447  }
3448 
3450  return shadow_iterator(FirstUsingShadow.getPointer());
3451  }
3452 
3454 
3455  /// Return the number of shadowed declarations associated with this
3456  /// using declaration.
3457  unsigned shadow_size() const {
3458  return std::distance(shadow_begin(), shadow_end());
3459  }
3460 
3461  void addShadowDecl(UsingShadowDecl *S);
3462  void removeShadowDecl(UsingShadowDecl *S);
3463 
3464  static UsingDecl *Create(ASTContext &C, DeclContext *DC,
3465  SourceLocation UsingL,
3466  NestedNameSpecifierLoc QualifierLoc,
3467  const DeclarationNameInfo &NameInfo,
3468  bool HasTypenameKeyword);
3469 
3470  static UsingDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3471 
3472  SourceRange getSourceRange() const override LLVM_READONLY;
3473 
3474  /// Retrieves the canonical declaration of this declaration.
3475  UsingDecl *getCanonicalDecl() override { return getFirstDecl(); }
3476  const UsingDecl *getCanonicalDecl() const { return getFirstDecl(); }
3477 
3478  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3479  static bool classofKind(Kind K) { return K == Using; }
3480 };
3481 
3482 /// Represents a pack of using declarations that a single
3483 /// using-declarator pack-expanded into.
3484 ///
3485 /// \code
3486 /// template<typename ...T> struct X : T... {
3487 /// using T::operator()...;
3488 /// using T::operator T...;
3489 /// };
3490 /// \endcode
3491 ///
3492 /// In the second case above, the UsingPackDecl will have the name
3493 /// 'operator T' (which contains an unexpanded pack), but the individual
3494 /// UsingDecls and UsingShadowDecls will have more reasonable names.
3495 class UsingPackDecl final
3496  : public NamedDecl, public Mergeable<UsingPackDecl>,
3497  private llvm::TrailingObjects<UsingPackDecl, NamedDecl *> {
3498  /// The UnresolvedUsingValueDecl or UnresolvedUsingTypenameDecl from
3499  /// which this waas instantiated.
3500  NamedDecl *InstantiatedFrom;
3501 
3502  /// The number of using-declarations created by this pack expansion.
3503  unsigned NumExpansions;
3504 
3505  UsingPackDecl(DeclContext *DC, NamedDecl *InstantiatedFrom,
3506  ArrayRef<NamedDecl *> UsingDecls)
3507  : NamedDecl(UsingPack, DC,
3508  InstantiatedFrom ? InstantiatedFrom->getLocation()
3509  : SourceLocation(),
3510  InstantiatedFrom ? InstantiatedFrom->getDeclName()
3511  : DeclarationName()),
3512  InstantiatedFrom(InstantiatedFrom), NumExpansions(UsingDecls.size()) {
3513  std::uninitialized_copy(UsingDecls.begin(), UsingDecls.end(),
3514  getTrailingObjects<NamedDecl *>());
3515  }
3516 
3517  void anchor() override;
3518 
3519 public:
3520  friend class ASTDeclReader;
3521  friend class ASTDeclWriter;
3523 
3524  /// Get the using declaration from which this was instantiated. This will
3525  /// always be an UnresolvedUsingValueDecl or an UnresolvedUsingTypenameDecl
3526  /// that is a pack expansion.
3527  NamedDecl *getInstantiatedFromUsingDecl() const { return InstantiatedFrom; }
3528 
3529  /// Get the set of using declarations that this pack expanded into. Note that
3530  /// some of these may still be unresolved.
3532  return llvm::makeArrayRef(getTrailingObjects<NamedDecl *>(), NumExpansions);
3533  }
3534 
3535  static UsingPackDecl *Create(ASTContext &C, DeclContext *DC,
3536  NamedDecl *InstantiatedFrom,
3537  ArrayRef<NamedDecl *> UsingDecls);
3538 
3539  static UsingPackDecl *CreateDeserialized(ASTContext &C, unsigned ID,
3540  unsigned NumExpansions);
3541 
3542  SourceRange getSourceRange() const override LLVM_READONLY {
3543  return InstantiatedFrom->getSourceRange();
3544  }
3545 
3546  UsingPackDecl *getCanonicalDecl() override { return getFirstDecl(); }
3547  const UsingPackDecl *getCanonicalDecl() const { return getFirstDecl(); }
3548 
3549  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3550  static bool classofKind(Kind K) { return K == UsingPack; }
3551 };
3552 
3553 /// Represents a dependent using declaration which was not marked with
3554 /// \c typename.
3555 ///
3556 /// Unlike non-dependent using declarations, these *only* bring through
3557 /// non-types; otherwise they would break two-phase lookup.
3558 ///
3559 /// \code
3560 /// template <class T> class A : public Base<T> {
3561 /// using Base<T>::foo;
3562 /// };
3563 /// \endcode
3565  public Mergeable<UnresolvedUsingValueDecl> {
3566  /// The source location of the 'using' keyword
3567  SourceLocation UsingLocation;
3568 
3569  /// If this is a pack expansion, the location of the '...'.
3570  SourceLocation EllipsisLoc;
3571 
3572  /// The nested-name-specifier that precedes the name.
3573  NestedNameSpecifierLoc QualifierLoc;
3574 
3575  /// Provides source/type location info for the declaration name
3576  /// embedded in the ValueDecl base class.
3577  DeclarationNameLoc DNLoc;
3578 
3580  SourceLocation UsingLoc,
3581  NestedNameSpecifierLoc QualifierLoc,
3582  const DeclarationNameInfo &NameInfo,
3583  SourceLocation EllipsisLoc)
3584  : ValueDecl(UnresolvedUsingValue, DC,
3585  NameInfo.getLoc(), NameInfo.getName(), Ty),
3586  UsingLocation(UsingLoc), EllipsisLoc(EllipsisLoc),
3587  QualifierLoc(QualifierLoc), DNLoc(NameInfo.getInfo()) {}
3588 
3589  void anchor() override;
3590 
3591 public:
3592  friend class ASTDeclReader;
3593  friend class ASTDeclWriter;
3594 
3595  /// Returns the source location of the 'using' keyword.
3596  SourceLocation getUsingLoc() const { return UsingLocation; }
3597 
3598  /// Set the source location of the 'using' keyword.
3599  void setUsingLoc(SourceLocation L) { UsingLocation = L; }
3600 
3601  /// Return true if it is a C++03 access declaration (no 'using').
3602  bool isAccessDeclaration() const { return UsingLocation.isInvalid(); }
3603 
3604  /// Retrieve the nested-name-specifier that qualifies the name,
3605  /// with source-location information.
3606  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3607 
3608  /// Retrieve the nested-name-specifier that qualifies the name.
3610  return QualifierLoc.getNestedNameSpecifier();
3611  }
3612 
3614  return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
3615  }
3616 
3617  /// Determine whether this is a pack expansion.
3618  bool isPackExpansion() const {
3619  return EllipsisLoc.isValid();
3620  }
3621 
3622  /// Get the location of the ellipsis if this is a pack expansion.
3624  return EllipsisLoc;
3625  }
3626 
3627  static UnresolvedUsingValueDecl *
3628  Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
3629  NestedNameSpecifierLoc QualifierLoc,
3630  const DeclarationNameInfo &NameInfo, SourceLocation EllipsisLoc);
3631 
3632  static UnresolvedUsingValueDecl *
3633  CreateDeserialized(ASTContext &C, unsigned ID);
3634 
3635  SourceRange getSourceRange() const override LLVM_READONLY;
3636 
3637  /// Retrieves the canonical declaration of this declaration.
3639  return getFirstDecl();
3640  }
3642  return getFirstDecl();
3643  }
3644 
3645  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3646  static bool classofKind(Kind K) { return K == UnresolvedUsingValue; }
3647 };
3648 
3649 /// Represents a dependent using declaration which was marked with
3650 /// \c typename.
3651 ///
3652 /// \code
3653 /// template <class T> class A : public Base<T> {
3654 /// using typename Base<T>::foo;
3655 /// };
3656 /// \endcode
3657 ///
3658 /// The type associated with an unresolved using typename decl is
3659 /// currently always a typename type.
3661  : public TypeDecl,
3662  public Mergeable<UnresolvedUsingTypenameDecl> {
3663  friend class ASTDeclReader;
3664 
3665  /// The source location of the 'typename' keyword
3666  SourceLocation TypenameLocation;
3667 
3668  /// If this is a pack expansion, the location of the '...'.
3669  SourceLocation EllipsisLoc;
3670 
3671  /// The nested-name-specifier that precedes the name.
3672  NestedNameSpecifierLoc QualifierLoc;
3673 
3675  SourceLocation TypenameLoc,
3676  NestedNameSpecifierLoc QualifierLoc,
3677  SourceLocation TargetNameLoc,
3678  IdentifierInfo *TargetName,
3679  SourceLocation EllipsisLoc)
3680  : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName,
3681  UsingLoc),
3682  TypenameLocation(TypenameLoc), EllipsisLoc(EllipsisLoc),
3683  QualifierLoc(QualifierLoc) {}
3684 
3685  void anchor() override;
3686 
3687 public:
3688  /// Returns the source location of the 'using' keyword.
3689  SourceLocation getUsingLoc() const { return getLocStart(); }
3690 
3691  /// Returns the source location of the 'typename' keyword.
3692  SourceLocation getTypenameLoc() const { return TypenameLocation; }
3693 
3694  /// Retrieve the nested-name-specifier that qualifies the name,
3695  /// with source-location information.
3696  NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
3697 
3698  /// Retrieve the nested-name-specifier that qualifies the name.
3700  return QualifierLoc.getNestedNameSpecifier();
3701  }
3702 
3704  return DeclarationNameInfo(getDeclName(), getLocation());
3705  }
3706 
3707  /// Determine whether this is a pack expansion.
3708  bool isPackExpansion() const {
3709  return EllipsisLoc.isValid();
3710  }
3711 
3712  /// Get the location of the ellipsis if this is a pack expansion.
3714  return EllipsisLoc;
3715  }
3716 
3718  Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
3719  SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc,
3720  SourceLocation TargetNameLoc, DeclarationName TargetName,
3721  SourceLocation EllipsisLoc);
3722 
3724  CreateDeserialized(ASTContext &C, unsigned ID);
3725 
3726  /// Retrieves the canonical declaration of this declaration.
3728  return getFirstDecl();
3729  }
3731  return getFirstDecl();
3732  }
3733 
3734  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3735  static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; }
3736 };
3737 
3738 /// Represents a C++11 static_assert declaration.
3739 class StaticAssertDecl : public Decl {
3740  llvm::PointerIntPair<Expr *, 1, bool> AssertExprAndFailed;
3741  StringLiteral *Message;
3742  SourceLocation RParenLoc;
3743 
3744  StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc,
3745  Expr *AssertExpr, StringLiteral *Message,
3746  SourceLocation RParenLoc, bool Failed)
3747  : Decl(StaticAssert, DC, StaticAssertLoc),
3748  AssertExprAndFailed(AssertExpr, Failed), Message(Message),
3749  RParenLoc(RParenLoc) {}
3750 
3751  virtual void anchor();
3752 
3753 public:
3754  friend class ASTDeclReader;
3755 
3757  SourceLocation StaticAssertLoc,
3758  Expr *AssertExpr, StringLiteral *Message,
3759  SourceLocation RParenLoc, bool Failed);
3760  static StaticAssertDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3761 
3762  Expr *getAssertExpr() { return AssertExprAndFailed.getPointer(); }
3763  const Expr *getAssertExpr() const { return AssertExprAndFailed.getPointer(); }
3764 
3765  StringLiteral *getMessage() { return Message; }
3766  const StringLiteral *getMessage() const { return Message; }
3767 
3768  bool isFailed() const { return AssertExprAndFailed.getInt(); }
3769 
3770  SourceLocation getRParenLoc() const { return RParenLoc; }
3771 
3772  SourceRange getSourceRange() const override LLVM_READONLY {
3773  return SourceRange(getLocation(), getRParenLoc());
3774  }
3775 
3776  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3777  static bool classofKind(Kind K) { return K == StaticAssert; }
3778 };
3779 
3780 /// A binding in a decomposition declaration. For instance, given:
3781 ///
3782 /// int n[3];
3783 /// auto &[a, b, c] = n;
3784 ///
3785 /// a, b, and c are BindingDecls, whose bindings are the expressions
3786 /// x[0], x[1], and x[2] respectively, where x is the implicit
3787 /// DecompositionDecl of type 'int (&)[3]'.
3788 class BindingDecl : public ValueDecl {
3789  /// The binding represented by this declaration. References to this
3790  /// declaration are effectively equivalent to this expression (except
3791  /// that it is only evaluated once at the point of declaration of the
3792  /// binding).
3793  Expr *Binding = nullptr;
3794 
3796  : ValueDecl(Decl::Binding, DC, IdLoc, Id, QualType()) {}
3797 
3798  void anchor() override;
3799 
3800 public:
3801  friend class ASTDeclReader;
3802 
3803  static BindingDecl *Create(ASTContext &C, DeclContext *DC,
3804  SourceLocation IdLoc, IdentifierInfo *Id);
3805  static BindingDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3806 
3807  /// Get the expression to which this declaration is bound. This may be null
3808  /// in two different cases: while parsing the initializer for the
3809  /// decomposition declaration, and when the initializer is type-dependent.
3810  Expr *getBinding() const { return Binding; }
3811 
3812  /// Get the variable (if any) that holds the value of evaluating the binding.
3813  /// Only present for user-defined bindings for tuple-like types.
3814  VarDecl *getHoldingVar() const;
3815 
3816  /// Set the binding for this BindingDecl, along with its declared type (which
3817  /// should be a possibly-cv-qualified form of the type of the binding, or a
3818  /// reference to such a type).
3819  void setBinding(QualType DeclaredType, Expr *Binding) {
3820  setType(DeclaredType);
3821  this->Binding = Binding;
3822  }
3823 
3824  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3825  static bool classofKind(Kind K) { return K == Decl::Binding; }
3826 };
3827 
3828 /// A decomposition declaration. For instance, given:
3829 ///
3830 /// int n[3];
3831 /// auto &[a, b, c] = n;
3832 ///
3833 /// the second line declares a DecompositionDecl of type 'int (&)[3]', and
3834 /// three BindingDecls (named a, b, and c). An instance of this class is always
3835 /// unnamed, but behaves in almost all other respects like a VarDecl.
3837  : public VarDecl,
3838  private llvm::TrailingObjects<DecompositionDecl, BindingDecl *> {
3839  /// The number of BindingDecl*s following this object.
3840  unsigned NumBindings;
3841 
3843  SourceLocation LSquareLoc, QualType T,
3844  TypeSourceInfo *TInfo, StorageClass SC,
3845  ArrayRef<BindingDecl *> Bindings)
3846  : VarDecl(Decomposition, C, DC, StartLoc, LSquareLoc, nullptr, T, TInfo,
3847  SC),
3848  NumBindings(Bindings.size()) {
3849  std::uninitialized_copy(Bindings.begin(), Bindings.end(),
3850  getTrailingObjects<BindingDecl *>());
3851  }
3852 
3853  void anchor() override;
3854 
3855 public:
3856  friend class ASTDeclReader;
3858 
3860  SourceLocation StartLoc,
3861  SourceLocation LSquareLoc,
3862  QualType T, TypeSourceInfo *TInfo,
3863  StorageClass S,
3864  ArrayRef<BindingDecl *> Bindings);
3865  static DecompositionDecl *CreateDeserialized(ASTContext &C, unsigned ID,
3866  unsigned NumBindings);
3867 
3869  return llvm::makeArrayRef(getTrailingObjects<BindingDecl *>(), NumBindings);
3870  }
3871 
3872  void printName(raw_ostream &os) const override;
3873 
3874  static bool classof(const Decl *D) { return classofKind(D->getKind()); }
3875  static bool classofKind(Kind K) { return K == Decomposition; }
3876 };
3877 
3878 /// An instance of this class represents the declaration of a property
3879 /// member. This is a Microsoft extension to C++, first introduced in
3880 /// Visual Studio .NET 2003 as a parallel to similar features in C#
3881 /// and Managed C++.
3882 ///
3883 /// A property must always be a non-static class member.
3884 ///
3885 /// A property member superficially resembles a non-static data
3886 /// member, except preceded by a property attribute:
3887 /// __declspec(property(get=GetX, put=PutX)) int x;
3888 /// Either (but not both) of the 'get' and 'put' names may be omitted.
3889 ///
3890 /// A reference to a property is always an lvalue. If the lvalue
3891 /// undergoes lvalue-to-rvalue conversion, then a getter name is
3892 /// required, and that member is called with no arguments.
3893 /// If the lvalue is assigned into, then a setter name is required,
3894 /// and that member is called with one argument, the value assigned.
3895 /// Both operations are potentially overloaded. Compound assignments
3896 /// are permitted, as are the increment and decrement operators.
3897 ///
3898 /// The getter and putter methods are permitted to be overloaded,
3899 /// although their return and parameter types are subject to certain
3900 /// restrictions according to the type of the property.
3901 ///
3902 /// A property declared using an incomplete array type may
3903 /// additionally be subscripted, adding extra parameters to the getter
3904 /// and putter methods.
3906  IdentifierInfo *GetterId, *SetterId;
3907 
3909  QualType T, TypeSourceInfo *TInfo, SourceLocation StartL,
3910  IdentifierInfo *Getter, IdentifierInfo *Setter)
3911  : DeclaratorDecl(MSProperty, DC, L, N, T, TInfo, StartL),
3912  GetterId(Getter), SetterId(Setter) {}
3913 
3914 public:
3915  friend class ASTDeclReader;
3916 
3917  static MSPropertyDecl *Create(ASTContext &C, DeclContext *DC,
3919  TypeSourceInfo *TInfo, SourceLocation StartL,
3920  IdentifierInfo *Getter, IdentifierInfo *Setter);
3921  static MSPropertyDecl *CreateDeserialized(ASTContext &C, unsigned ID);
3922 
3923  static bool classof(const Decl *D) { return D->getKind() == MSProperty; }
3924 
3925  bool hasGetter() const { return GetterId != nullptr; }
3926  IdentifierInfo* getGetterId() const { return GetterId; }
3927  bool hasSetter() const { return SetterId != nullptr; }
3928  IdentifierInfo* getSetterId() const { return SetterId; }
3929 };
3930 
3931 /// Insertion operator for diagnostics. This allows sending an AccessSpecifier
3932 /// into a diagnostic with <<.
3934  AccessSpecifier AS);
3935 
3937  AccessSpecifier AS);
3938 
3939 } // namespace clang
3940 
3941 #endif // LLVM_CLANG_AST_DECLCXX_H
const CXXRecordDecl * getPreviousDecl() const
Definition: DeclCXX.h:741
bool isBaseInitializer() const
Determine whether this initializer is initializing a base class.
Definition: DeclCXX.h:2304
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:2418
Defines the clang::ASTContext interface.
NamedDecl * getTargetDecl() const
Gets the underlying declaration which has been brought into the local scope.
Definition: DeclCXX.h:3194
static const Decl * getCanonicalDecl(const Decl *D)
Represents a function declaration or definition.
Definition: Decl.h:1714
Expr * getInit() const
Get the initializer.
Definition: DeclCXX.h:2433
llvm::iterator_range< redecl_iterator > redecl_range
Definition: DeclBase.h:942
A (possibly-)qualified type.
Definition: Type.h:655
unsigned getNumCtorInitializers() const
Determine the number of arguments used to initialize the member or base.
Definition: DeclCXX.h:2561
bool hasUninitializedReferenceMember() const
Whether this class or any of its subobjects has any members of reference type which would make value-...
Definition: DeclCXX.h:1289
bool isStandardLayout() const
Determine whether this class is standard-layout per C++ [class]p7.
Definition: DeclCXX.h:1338
base_class_range bases()
Definition: DeclCXX.h:811
static bool classof(const Decl *D)
Definition: DeclCXX.h:3645
const CXXMethodDecl *const * method_iterator
Definition: DeclCXX.h:2139
const DeclarationNameLoc & getInfo() const
unsigned getNumBases() const
Retrieves the number of base classes of this class.
Definition: DeclCXX.h:805
SourceLocation getEllipsisLoc() const
Get the location of the ellipsis if this is a pack expansion.
Definition: DeclCXX.h:3623
SourceLocation getLParenLoc() const
Definition: DeclCXX.h:2429
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:30
static bool classof(const Decl *D)
Definition: DeclCXX.h:2887
Iterates through the using shadow declarations associated with this using declaration.
Definition: DeclCXX.h:3407
Stmt - This represents one statement.
Definition: Stmt.h:66
static bool classofKind(Kind K)
Definition: DeclCXX.h:3218
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3148
bool isInClassMemberInitializer() const
Determine whether this initializer is an implicit initializer generated for a field with an initializ...
Definition: DeclCXX.h:2326
static bool classof(const Decl *D)
Definition: DeclCXX.h:2799
unsigned getNumVBases() const
Retrieves the number of virtual base classes of this class.
Definition: DeclCXX.h:826
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:1400
bool allowConstDefaultInit() const
Determine whether declaring a const variable with this type is ok per core issue 253.
Definition: DeclCXX.h:1493
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:1504
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:1185
void setAccessSpecifierLoc(SourceLocation ASLoc)
Sets the location of the access specifier.
Definition: DeclCXX.h:151
IdentifierInfo * getGetterId() const
Definition: DeclCXX.h:3926
bool isVirtual() const
Definition: DeclCXX.h:2076
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:245
bool hasUserDeclaredCopyAssignment() const
Determine whether this class has a user-declared copy assignment operator.
Definition: DeclCXX.h:1097
init_const_reverse_iterator init_rend() const
Definition: DeclCXX.h:2555
shadow_iterator shadow_end() const
Definition: DeclCXX.h:3453
bool isPOD() const
Whether this class is a POD-type (C++ [class]p4)
Definition: DeclCXX.h:1302
bool isWritten() const
Determine whether this initializer is explicitly written in the source code.
Definition: DeclCXX.h:2403
StringRef P
void setPure(bool P=true)
Definition: Decl.cpp:2678
init_reverse_iterator init_rend()
Definition: DeclCXX.h:2552
bool isPackExpansion() const
Determine whether this is a pack expansion.
Definition: DeclCXX.h:3708
const DiagnosticBuilder & operator<<(const DiagnosticBuilder &DB, const Attr *At)
Definition: Attr.h:322
SourceLocation getColonLoc() const
The location of the colon following the access specifier.
Definition: DeclCXX.h:154
The base class of the type hierarchy.
Definition: Type.h:1421
static bool classof(const Decl *D)
Definition: DeclCXX.h:3478
Expr * getOperatorDeleteThisArg() const
Definition: DeclCXX.h:2722
const CXXMethodDecl * getDevirtualizedMethod(const Expr *Base, bool IsAppleKext) const
Definition: DeclCXX.h:2094
Represent a C++ namespace.
Definition: Decl.h:514
std::reverse_iterator< init_iterator > init_reverse_iterator
Definition: DeclCXX.h:2541
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name of the namespace.
Definition: DeclCXX.h:2958
const NamedDecl * getNominatedNamespaceAsWritten() const
Definition: DeclCXX.h:2963
bool hasTrivialMoveConstructor() const
Determine whether this class has a trivial move constructor (C++11 [class.copy]p12) ...
Definition: DeclCXX.h:1413
AccessSpecifier
A C++ access specifier (public, private, protected), plus the special value "none" which means differ...
Definition: Specifiers.h:98
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:1368
capture_const_range captures() const
Definition: DeclCXX.h:1238
static bool classof(const Decl *D)
Definition: DeclCXX.h:2023
base_class_const_iterator vbases_end() const
Definition: DeclCXX.h:838
bool needsImplicitMoveAssignment() const
Determine whether this class should get an implicit move assignment operator or if any existing speci...
Definition: DeclCXX.h:1152
QualType getConversionType() const
Returns the type that this conversion function is converting to.
Definition: DeclCXX.h:2783
static bool classofKind(Kind K)
Definition: DeclCXX.h:3116
bool hasFriends() const
Determines whether this record has any friends.
Definition: DeclCXX.h:894
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:1033
unsigned getIdentifierNamespace() const
Definition: DeclBase.h:797
static bool classof(const Decl *D)
Definition: DeclCXX.h:3824
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2463
bool implicitCopyAssignmentHasConstParam() const
Determine whether an implicit copy assignment operator for this type would have a parameter with a co...
Definition: DeclCXX.h:1115
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:2034
bool needsOverloadResolutionForCopyConstructor() const
Determine whether we need to eagerly declare a defaulted copy constructor for this class...
Definition: DeclCXX.h:999
bool isPackExpansion() const
Determine whether this initializer is a pack expansion.
Definition: DeclCXX.h:2337
SourceLocation getTargetNameLoc() const
Returns the location of the identifier in the named namespace.
Definition: DeclCXX.h:3105
friend bool operator!=(shadow_iterator x, shadow_iterator y)
Definition: DeclCXX.h:3438
bool isIndirectMemberInitializer() const
Definition: DeclCXX.h:2316
const Expr * getAssertExpr() const
Definition: DeclCXX.h:3763
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
Represents a variable declaration or definition.
Definition: Decl.h:812
static bool classof(const Decl *D)
Definition: DeclCXX.h:1962
const T * getAs() const
Member-template getAs<specific type>&#39;.
Definition: Type.h:6456
bool needsImplicitCopyAssignment() const
Determine whether this class needs an implicit copy assignment operator to be lazily declared...
Definition: DeclCXX.h:1103
NamedDecl * getUnderlyingDecl()
Looks through UsingDecls and ObjCCompatibleAliasDecls for the underlying named decl.
Definition: Decl.h:431
bool hasTrivialDefaultConstructor() const
Determine whether this class has a trivial default constructor (C++11 [class.ctor]p5).
Definition: DeclCXX.h:1353
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:68
bool isMemberInitializer() const
Determine whether this initializer is initializing a non-static data member.
Definition: DeclCXX.h:2310
SourceLocation getEllipsisLoc() const
Definition: DeclCXX.h:2342
bool hasDefinition() const
Definition: DeclCXX.h:776
UsingShadowDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3185
static AccessSpecDecl * Create(ASTContext &C, AccessSpecifier AS, DeclContext *DC, SourceLocation ASLoc, SourceLocation ColonLoc)
Definition: DeclCXX.h:163
Represents any kind of function declaration, whether it is a concrete function or a function template...
Definition: DeclCXX.h:78
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3613
bool isExplicitSpecified() const
Whether this function is marked as explicit explicitly.
Definition: DeclCXX.h:2574
SourceLocation getRParenLoc() const
Definition: DeclCXX.h:2430
reference operator*() const
Definition: DeclCXX.h:3421
std::string getName(ArrayRef< StringRef > Parts) const
Get the platform-specific name separator.
bool isExplicitSpecified() const
Whether this deduction guide was declared with the &#39;explicit&#39; specifier.
Definition: DeclCXX.h:2009
static bool classof(const Decl *D)
Definition: DeclCXX.h:3776
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:1637
bool hasNonTrivialDefaultConstructor() const
Determine whether this class has a non-trivial default constructor (C++11 [class.ctor]p5).
Definition: DeclCXX.h:1360
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:56
Represents a struct/union/class.
Definition: Decl.h:3548
bool hasTrivialCopyConstructorForCall() const
Definition: DeclCXX.h:1394
LanguageIDs getLanguage() const
Return the language specified by this linkage specification.
Definition: DeclCXX.h:2855
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:1317
Description of a constructor that was inherited from a base class.
Definition: DeclCXX.h:2437
DeclarationName getDeclName() const
Get the actual, stored name of the declaration, which may be a special name.
Definition: Decl.h:297
Provides common interface for the Decls that can be redeclared.
Definition: Redeclarable.h:87
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclCXX.h:2875
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:2157
bool isConst() const
Definition: DeclCXX.h:2073
StringLiteral * getMessage()
Definition: DeclCXX.h:3765
static bool classof(const Decl *D)
Definition: DeclCXX.h:3002
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:2998
CXXRecordDecl * getPreviousDecl()
Definition: DeclCXX.h:736
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:150
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:3086
static bool classofKind(Kind K)
Definition: DeclCXX.h:3646
bool defaultedDefaultConstructorIsConstexpr() const
Determine whether a defaulted default constructor for this class would be constexpr.
Definition: DeclCXX.h:1376
void setLanguage(LanguageIDs L)
Set the language specified by this linkage specification.
Definition: DeclCXX.h:2858
static bool classof(const Decl *D)
Definition: DeclCXX.h:3335
SourceLocation getLocStart() const LLVM_READONLY
Definition: DeclCXX.h:236
Represents a member of a struct/union/class.
Definition: Decl.h:2521
bool isVolatile() const
Definition: DeclCXX.h:2074
TypeSourceInfo * getTypeSourceInfo() const
Returns the declarator information for a base class or delegating initializer.
Definition: DeclCXX.h:2365
llvm::iterator_range< capture_const_iterator > capture_const_range
Definition: DeclCXX.h:1236
conversion_iterator conversion_end() const
Definition: DeclCXX.h:1257
void startDefinition()
Starts the definition of this tag declaration.
Definition: Decl.cpp:3789
CXXMethodDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2112
bool isCopyOrMoveConstructor() const
Determine whether this a copy or move constructor.
Definition: DeclCXX.h:2639
static bool classofKind(Kind K)
Definition: DeclCXX.h:3479
bool hasTrivialMoveAssignment() const
Determine whether this class has a trivial move assignment operator (C++11 [class.copy]p25)
Definition: DeclCXX.h:1453
InheritedConstructor getInheritedConstructor() const
Get the constructor that this inheriting constructor is based on.
Definition: DeclCXX.h:2659
The iterator over UnresolvedSets.
Definition: UnresolvedSet.h:32
static NamespaceDecl * getNamespace(const NestedNameSpecifier *X)
virtual SourceRange getSourceRange() const LLVM_READONLY
Source range that this declaration covers.
Definition: DeclBase.h:405
static bool classof(const Decl *D)
Definition: DeclCXX.h:3115
FieldDecl * getAnonField() const
Definition: Decl.h:2797
bool hasUserDeclaredDestructor() const
Determine whether this class has a user-declared destructor.
Definition: DeclCXX.h:1173
unsigned getTypeQualifiers() const
Definition: DeclCXX.h:2170
method_iterator method_begin() const
Method begin iterator.
Definition: DeclCXX.h:859
static bool classofKind(Kind K)
Definition: DeclCXX.h:3336
Represents an access specifier followed by colon &#39;:&#39;.
Definition: DeclCXX.h:132
bool hasGetter() const
Definition: DeclCXX.h:3925
llvm::iterator_range< init_iterator > init_range
Definition: DeclCXX.h:2514
TypeSourceInfo * getLambdaTypeInfo() const
Definition: DeclCXX.h:1954
NamespaceAliasDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3068
llvm::iterator_range< friend_iterator > friend_range
Definition: DeclCXX.h:886
void setImplicitCopyConstructorIsDeleted()
Set that we attempted to declare an implicit copy constructor, but overload resolution failed so we d...
Definition: DeclCXX.h:1052
static bool classofKind(Kind K)
Definition: DeclCXX.h:3875
Represents a C++ using-declaration.
Definition: DeclCXX.h:3345
UnresolvedUsingValueDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3638
void setUsingLoc(SourceLocation L)
Set the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3381
ArrayRef< BindingDecl * > bindings() const
Definition: DeclCXX.h:3868
bool hasNonLiteralTypeFieldsOrBases() const
Determine whether this class has a non-literal or/ volatile type non-static data member or base class...
Definition: DeclCXX.h:1510
friend TrailingObjects
Definition: DeclCXX.h:3522
RefQualifierKind getRefQualifier() const
Retrieve the ref-qualifier associated with this method.
Definition: DeclCXX.h:2185
bool isDelegatingConstructor() const
Determine whether this constructor is a delegating constructor.
Definition: DeclCXX.h:2582
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:2035
bool isBaseVirtual() const
Returns whether the base is virtual or not.
Definition: DeclCXX.h:2357
bool hasMoveAssignment() const
Determine whether this class has a move assignment operator.
Definition: DeclCXX.h:1135
AccessSpecifier getAccessSpecifier() const
Returns the access specifier for this base specifier.
Definition: DeclCXX.h:272
const CXXRecordDecl * getMostRecentNonInjectedDecl() const
Definition: DeclCXX.h:765
bool getInheritConstructors() const
Determine whether this base class&#39;s constructors get inherited.
Definition: DeclCXX.h:255
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:1109
NamedDecl * getNominatedNamespaceAsWritten()
Definition: DeclCXX.h:2962
bool hasNonTrivialDestructorForCall() const
Definition: DeclCXX.h:1482
FunctionDecl * isLocalClass()
Definition: DeclCXX.h:1644
static bool classof(const Decl *D)
Definition: DeclCXX.h:2734
Represents a declaration of a type.
Definition: Decl.h:2816
void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl)
Set the mangling number and context declaration for a lambda class.
Definition: DeclCXX.h:1912
bool isAccessDeclaration() const
Return true if it is a C++03 access declaration (no &#39;using&#39;).
Definition: DeclCXX.h:3397
bool isLambda() const
Determine whether this class describes a lambda function object.
Definition: DeclCXX.h:1190
static DeclContext * castToDeclContext(const LinkageSpecDecl *D)
Definition: DeclCXX.h:2890
base_class_const_iterator bases_begin() const
Definition: DeclCXX.h:819
CXXRecordDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:728
llvm::iterator_range< init_const_iterator > init_const_range
Definition: DeclCXX.h:2515
CXXConversionDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2791
bool isAnyMemberInitializer() const
Definition: DeclCXX.h:2312
base_class_iterator bases_begin()
Definition: DeclCXX.h:818
SourceLocation getExternLoc() const
Definition: DeclCXX.h:2867
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclCXX.h:237
void setNumCtorInitializers(unsigned numCtorInitializers)
Definition: DeclCXX.h:2565
FieldDecl * getAnyMember() const
Definition: DeclCXX.h:2377
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
Definition: ExprCXX.h:1583
bool hasTrivialDestructor() const
Determine whether this class has a trivial destructor (C++ [class.dtor]p3)
Definition: DeclCXX.h:1468
bool isInstance() const
Definition: DeclCXX.h:2059
bool hasSimpleCopyConstructor() const
true if we know for sure that this class has a single, accessible, unambiguous copy constructor that ...
Definition: DeclCXX.h:926
FieldDecl * getMember() const
If this is a member initializer, returns the declaration of the non-static data member being initiali...
Definition: DeclCXX.h:2371
Represents a linkage specification.
Definition: DeclCXX.h:2809
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3772
shadow_iterator shadow_begin() const
Definition: DeclCXX.h:3449
bool hasConstexprDefaultConstructor() const
Determine whether this class has a constexpr default constructor.
Definition: DeclCXX.h:1382
bool isAbstract() const
Determine whether this class has a pure virtual function.
Definition: DeclCXX.h:1334
A binding in a decomposition declaration.
Definition: DeclCXX.h:3788
init_iterator init_begin()
Retrieve an iterator to the first initializer.
Definition: DeclCXX.h:2523
llvm::iterator_range< overridden_cxx_method_iterator > overridden_method_range
Definition: ASTContext.h:919
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3542
CXXRecordDecl * getMostRecentNonInjectedDecl()
Definition: DeclCXX.h:754
SourceLocation getRParenLoc() const
Definition: DeclCXX.h:3770
llvm::iterator_range< specific_decl_iterator< CXXConstructorDecl > > ctor_range
Definition: DeclCXX.h:871
bool hasBraces() const
Determines whether this linkage specification had braces in its syntactic form.
Definition: DeclCXX.h:2862
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:1894
bool hasCopyAssignmentWithConstParam() const
Determine whether this class has a copy assignment operator with a parameter type which is a referenc...
Definition: DeclCXX.h:1122
CXXConstructorDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2664
bool hasUserProvidedDefaultConstructor() const
Whether this class has a user-provided default constructor per C++11.
Definition: DeclCXX.h:980
InheritedConstructor(ConstructorUsingShadowDecl *Shadow, CXXConstructorDecl *BaseCtor)
Definition: DeclCXX.h:2443
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:745
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name of the namespace.
Definition: DeclCXX.h:3081
A little helper class used to produce diagnostics.
Definition: Diagnostic.h:1042
init_const_range inits() const
Definition: DeclCXX.h:2518
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3369
bool isDynamicClass() const
Definition: DeclCXX.h:789
CXXDestructorDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:2726
static bool classofKind(Kind K)
Definition: DeclCXX.h:3735
SourceLocation getTypenameLoc() const
Returns the source location of the &#39;typename&#39; keyword.
Definition: DeclCXX.h:3692
Represents a ValueDecl that came out of a declarator.
Definition: Decl.h:688
static bool classof(const Decl *D)
Definition: DeclCXX.h:3549
bool isDelegatingInitializer() const
Determine whether this initializer is creating a delegating constructor.
Definition: DeclCXX.h:2332
init_reverse_iterator init_rbegin()
Definition: DeclCXX.h:2545
bool hasTrivialMoveConstructorForCall() const
Definition: DeclCXX.h:1418
std::forward_iterator_tag iterator_category
Definition: DeclCXX.h:3415
bool isLiteral() const
Determine whether this class is a literal type.
Definition: DeclCXX.h:1556
const CXXRecordDecl * getParent() const
Returns the parent of this using shadow declaration, which is the class in which this is declared...
Definition: DeclCXX.h:3289
CXXCtorInitializer *const * init_const_iterator
Iterates through the member/base initializer list.
Definition: DeclCXX.h:2512
bool hasInheritedConstructor() const
Determine whether this class has a using-declaration that names a user-declared base class constructo...
Definition: DeclCXX.h:1516
capture_const_iterator captures_end() const
Definition: DeclCXX.h:1246
static bool classof(const Decl *D)
Definition: DeclCXX.h:3734
static bool classofKind(Kind K)
Definition: DeclCXX.h:3003
const UnresolvedUsingValueDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3641
bool hasUserDeclaredCopyConstructor() const
Determine whether this class has a user-declared copy constructor.
Definition: DeclCXX.h:987
Represents a shadow constructor declaration introduced into a class by a C++11 using-declaration that...
Definition: DeclCXX.h:3233
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:636
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:3385
Defines the clang::LangOptions interface.
const NamespaceDecl * getNominatedNamespace() const
Definition: DeclCXX.h:2970
SourceLocation getAliasLoc() const
Returns the location of the alias name, i.e.
Definition: DeclCXX.h:3099
ctor_iterator ctor_end() const
Definition: DeclCXX.h:879
const CXXConversionDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2794
static bool classofKind(Kind K)
Definition: DeclCXX.h:2888
int Id
Definition: ASTDiff.cpp:191
const FunctionProtoType * T
base_class_const_range bases() const
Definition: DeclCXX.h:814
bool defaultedMoveConstructorIsDeleted() const
true if a defaulted move constructor for this class would be deleted.
Definition: DeclCXX.h:909
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3392
CXXRecordDecl * getTemplateInstantiationPattern()
Definition: DeclCXX.h:1623
const CXXRecordDecl * getCanonicalDecl() const
Definition: DeclCXX.h:732
Represents a C++ destructor within a class.
Definition: DeclCXX.h:2686
init_const_reverse_iterator init_rbegin() const
Definition: DeclCXX.h:2548
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:2613
const UsingDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3476
bool isCopyDeductionCandidate() const
Definition: DeclCXX.h:2020
Defines an enumeration for C++ overloaded operators.
void setRBraceLoc(SourceLocation L)
Definition: DeclCXX.h:2870
bool hasUserDeclaredMoveAssignment() const
Determine whether this class has had a move assignment declared by the user.
Definition: DeclCXX.h:1130
#define bool
Definition: stdbool.h:31
bool isPackExpansion() const
Determine whether this is a pack expansion.
Definition: DeclCXX.h:3618
CXXRecordDecl * getDefinition() const
Definition: DeclCXX.h:769
bool isExplicit() const
Whether this deduction guide is explicit.
Definition: DeclCXX.h:2006
base_class_iterator vbases_end()
Definition: DeclCXX.h:837
llvm::iterator_range< specific_decl_iterator< CXXMethodDecl > > method_range
Definition: DeclCXX.h:851
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:3300
bool hasMoveConstructor() const
Determine whether this class has a move constructor.
Definition: DeclCXX.h:1045
const CXXConstructorDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2667
bool needsImplicitDestructor() const
Determine whether this class needs an implicit destructor to be lazily declared.
Definition: DeclCXX.h:1179
Defines the clang::TypeLoc interface and its subclasses.
bool isTrivial() const
Determine whether this class is considered trivial.
Definition: DeclCXX.h:1535
init_const_iterator init_end() const
Retrieve an iterator past the last initializer.
Definition: DeclCXX.h:2537
CXXRecordDecl * getConstructedBaseClass() const
Get the base class whose constructor or constructor shadow declaration is passed the constructor argu...
Definition: DeclCXX.h:3316
bool isPolymorphic() const
Whether this class is polymorphic (C++ [class.virtual]), which means that the class contains or inher...
Definition: DeclCXX.h:1327
const CXXMethodDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2115
void setInheritConstructors(bool Inherit=true)
Set that this base class&#39;s constructors should be inherited.
Definition: DeclCXX.h:258
StorageClass
Storage classes.
Definition: Specifiers.h:206
const UnresolvedUsingTypenameDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3730
bool hasNonTrivialDestructor() const
Determine whether this class has a non-trivial destructor (C++ [class.dtor]p3)
Definition: DeclCXX.h:1478
IdentifierInfo * getSetterId() const
Definition: DeclCXX.h:3928
void setTypename(bool TN)
Sets whether the using declaration has &#39;typename&#39;.
Definition: DeclCXX.h:3403
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition: DeclBase.h:1341
method_iterator method_end() const
Method past-the-end iterator.
Definition: DeclCXX.h:864
SourceLocation getEnd() const
static bool hasDefinition(const ObjCObjectPointerType *ObjPtr)
void setHasTrivialSpecialMemberForCall()
Definition: DeclCXX.h:1486
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:249
bool hasSimpleMoveConstructor() const
true if we know for sure that this class has a single, accessible, unambiguous move constructor that ...
Definition: DeclCXX.h:933
bool hasTrivialCopyConstructor() const
Determine whether this class has a trivial copy constructor (C++ [class.copy]p6, C++11 [class...
Definition: DeclCXX.h:1390
Represents a C++ deduction guide declaration.
Definition: DeclCXX.h:1978
bool needsImplicitDefaultConstructor() const
Determine if we need to declare a default constructor for this class.
Definition: DeclCXX.h:962
Represents a C++ conversion function within a class.
Definition: DeclCXX.h:2748
bool hasNonTrivialMoveAssignment() const
Determine whether this class has a non-trivial move assignment operator (C++11 [class.copy]p25)
Definition: DeclCXX.h:1460
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:1929
UsingPackDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclCXX.h:3546
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:1738
bool hasNonTrivialMoveConstructor() const
Determine whether this class has a non-trivial move constructor (C++11 [class.copy]p12) ...
Definition: DeclCXX.h:1425
CXXMethodDecl * getMostRecentDecl()
Definition: DeclCXX.h:2119
const CXXRecordDecl * getMostRecentDecl() const
Definition: DeclCXX.h:750
llvm::iterator_range< shadow_iterator > shadow_range
Definition: DeclCXX.h:3443
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name.
Definition: DeclCXX.h:3699
bool hasVariantMembers() const
Determine whether this class has any variant members.
Definition: DeclCXX.h:1349
bool isExplicit() const
Whether this function is explicit.
Definition: DeclCXX.h:2778
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:3111
bool isInjectedClassName() const
Determines whether this declaration represents the injected class name.
Definition: Decl.cpp:4008
SourceLocation getUsingLoc() const
Return the location of the using keyword.
Definition: DeclCXX.h:2980
unsigned size_overridden_methods() const
Definition: DeclCXX.cpp:2126
SourceLocation getUsingLoc() const
Returns the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3596
const UsingPackDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3547
void setColonLoc(SourceLocation CLoc)
Sets the location of the colon.
Definition: DeclCXX.h:157
#define false
Definition: stdbool.h:33
UnresolvedUsingTypenameDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3727
const NamespaceAliasDecl * getCanonicalDecl() const
Definition: DeclCXX.h:3071
NamedDecl * getInstantiatedFromUsingDecl() const
Get the using declaration from which this was instantiated.
Definition: DeclCXX.h:3527
shadow_iterator(UsingShadowDecl *C)
Definition: DeclCXX.h:3419
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:1440
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:2883
Encodes a location in the source.
bool isPure() const
Whether this virtual function is pure, i.e.
Definition: Decl.h:2039
static bool classofKind(Kind K)
Definition: DeclCXX.h:2735
redeclarable_base::redecl_iterator redecl_iterator
Definition: DeclCXX.h:3060
const CXXMethodDecl * getCorrespondingMethodInClass(const CXXRecordDecl *RD, bool MayBeBase=false) const
Definition: DeclCXX.h:2210
NestedNameSpecifier * getQualifier() const
Retrieve the nested-name-specifier that qualifies the name.
Definition: DeclCXX.h:3609
A set of all the primary bases for a class.
const StringLiteral * getMessage() const
Definition: DeclCXX.h:3766
SourceLocation getNamespaceKeyLocation() const
Returns the location of the namespace keyword.
Definition: DeclCXX.h:2984
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:3378
std::reverse_iterator< init_const_iterator > init_const_reverse_iterator
Definition: DeclCXX.h:2543
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:3564
TagDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: Decl.cpp:3778
init_iterator init_end()
Retrieve an iterator past the last initializer.
Definition: DeclCXX.h:2532
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name, with source-location information.
Definition: DeclCXX.h:3606
llvm::iterator_range< base_class_iterator > base_class_range
Definition: DeclCXX.h:807
void setCtorInitializers(CXXCtorInitializer **Initializers)
Definition: DeclCXX.h:2569
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:2031
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
static bool classofKind(Kind K)
Definition: DeclCXX.h:3825
SourceLocation getIdentLocation() const
Returns the location of this using declaration&#39;s identifier.
Definition: DeclCXX.h:2987
bool isPackExpansion() const
Determine whether this base specifier is a pack expansion.
Definition: DeclCXX.h:252
void setImplicitMoveConstructorIsDeleted()
Set that we attempted to declare an implicit move constructor, but overload resolution failed so we d...
Definition: DeclCXX.h:1061
static bool classofKind(Kind K)
Definition: DeclCXX.h:2218
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name of the namespace, with source-location inf...
Definition: DeclCXX.h:2954
llvm::function_ref< bool(const CXXRecordDecl *BaseDefinition)> ForallBasesCallback
Function type used by forallBases() as a callback.
Definition: DeclCXX.h:1708
UsingDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this declaration.
Definition: DeclCXX.h:3475
bool isExplicitSpecified() const
Whether this function is marked as explicit explicitly.
Definition: DeclCXX.h:2775
static bool classof(const Decl *D)
Definition: DeclCXX.h:172
RefQualifierKind
The kind of C++11 ref-qualifier associated with a function type.
Definition: Type.h:1372
static bool classof(const Decl *D)
Definition: DeclCXX.h:3217
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:3306
void setIsParsingBaseSpecifiers()
Definition: DeclCXX.h:793
static void * getAsVoidPointer(::clang::AnyFunctionDecl F)
Definition: DeclCXX.h:106
bool hasNonTrivialMoveConstructorForCall() const
Definition: DeclCXX.h:1431
void setImplicitDestructorIsDeleted()
Set that we attempted to declare an implicit destructor, but overload resolution failed so we deleted...
Definition: DeclCXX.h:1070
const CXXDestructorDecl * getCanonicalDecl() const
Definition: DeclCXX.h:2729
SourceLocation getMemberLocation() const
Definition: DeclCXX.h:2391
::clang::AnyFunctionDecl getFromVoidPointer(void *P)
Definition: DeclCXX.h:110
Represents a C++11 static_assert declaration.
Definition: DeclCXX.h:3739
SourceLocation getRBraceLoc() const
Definition: DeclCXX.h:2868
TypeSourceInfo * getTypeSourceInfo() const
Retrieves the type and source location of the base class.
Definition: DeclCXX.h:296
SourceLocation getAccessSpecifierLoc() const
The location of the access specifier.
Definition: DeclCXX.h:148
bool defaultedCopyConstructorIsDeleted() const
true if a defaulted copy constructor for this class would be deleted.
Definition: DeclCXX.h:900
__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:2407
bool hasSetter() const
Definition: DeclCXX.h:3927
CXXBaseSpecifier(SourceRange R, bool V, bool BC, AccessSpecifier A, TypeSourceInfo *TInfo, SourceLocation EllipsisLoc)
Definition: DeclCXX.h:229
bool hasInClassInitializer() const
Whether this class has any in-class initializers for non-static data members (including those in anon...
Definition: DeclCXX.h:1279
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:2450
bool hasSimpleDestructor() const
true if we know for sure that this class has an accessible destructor that is not deleted...
Definition: DeclCXX.h:947
TagTypeKind
The kind of a tag type.
Definition: Type.h:4783
static bool isStaticOverloadedOperator(OverloadedOperatorKind OOK)
Returns true if the given operator is implicitly static in a record context.
Definition: DeclCXX.h:2063
bool hasNonTrivialCopyConstructorForCall() const
Definition: DeclCXX.h:1405
Dataflow Directional Tag Classes.
bool isExplicit() const
Whether this function is explicit.
Definition: DeclCXX.h:2577
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:2217
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1262
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:399
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
static AnyFunctionDecl getFromNamedDecl(NamedDecl *ND)
Definition: DeclCXX.h:94
SourceLocation getLocStart() const LLVM_READONLY
Definition: TypeLoc.h:154
SourceRange getSourceRange(const SourceRange &Range)
Returns the SourceRange of a SourceRange.
Definition: FixIt.h:34
base_class_const_range vbases() const
Definition: DeclCXX.h:831
bool hasTrivialDestructorForCall() const
Definition: DeclCXX.h:1472
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:354
SourceLocation getBaseTypeLoc() const LLVM_READONLY
Get the location at which the base class type was written.
Definition: DeclCXX.h:240
bool isAccessDeclaration() const
Return true if it is a C++03 access declaration (no &#39;using&#39;).
Definition: DeclCXX.h:3602
Represents a field injected from an anonymous union/struct into the parent scope. ...
Definition: Decl.h:2767
void setUsingLoc(SourceLocation L)
Set the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3599
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name of the namespace, with source-location inf...
Definition: DeclCXX.h:3077
DeclContext * getCommonAncestor()
Returns the common ancestor context of this using-directive and its nominated namespace.
Definition: DeclCXX.h:2976
llvm::iterator_range< base_class_const_iterator > base_class_const_range
Definition: DeclCXX.h:809
A decomposition declaration.
Definition: DeclCXX.h:3836
bool hasUserDeclaredConstructor() const
Determine whether this class has any user-declared constructors.
Definition: DeclCXX.h:974
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:3660
conversion_iterator conversion_begin() const
Definition: DeclCXX.h:1253
DeclarationName - The name of a declaration.
StmtClass getStmtClass() const
Definition: Stmt.h:389
bool isCXX11StandardLayout() const
Determine whether this class was standard-layout per C++11 [class]p7, specifically using the C++11 ru...
Definition: DeclCXX.h:1342
const CXXRecordDecl * getParent() const
Returns the parent of this method declaration, which is the class in which this method is defined...
Definition: DeclCXX.h:2151
Kind getKind() const
Definition: DeclBase.h:420
NestedNameSpecifierLoc getQualifierLoc() const
Retrieve the nested-name-specifier that qualifies the name, with source-location information.
Definition: DeclCXX.h:3696
DeclarationNameInfo getNameInfo() const
Definition: DeclCXX.h:3703
unsigned shadow_size() const
Return the number of shadowed declarations associated with this using declaration.
Definition: DeclCXX.h:3457
const NamespaceDecl * getNamespace() const
Definition: DeclCXX.h:3093
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:821
base_class_iterator vbases_begin()
Definition: DeclCXX.h:835
TemplateSpecializationKind
Describes the kind of template specialization that a particular template specialization declaration r...
Definition: Specifiers.h:146
void setExternLoc(SourceLocation L)
Definition: DeclCXX.h:2869
bool isUserProvided() const
True if this method is user-declared and was not deleted or defaulted on its first declaration...
Definition: DeclCXX.h:2129
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:1606
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:1446
bool isMoveConstructor() const
Determine whether this constructor is a move constructor (C++11 [class.copy]p3), which can be used to...
Definition: DeclCXX.h:2627
const FunctionDecl * getOperatorDelete() const
Definition: DeclCXX.h:2718
bool needsOverloadResolutionForMoveConstructor() const
Determine whether we need to eagerly declare a defaulted move constructor for this class...
Definition: DeclCXX.h:1089
static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, AccessSpecifier DeclAccess)
Calculates the access of a decl that is reached along a path.
Definition: DeclCXX.h:1854
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:2673
static bool classof(const Decl *D)
Definition: DeclCXX.h:3874
const CXXMethodDecl * getMostRecentDecl() const
Definition: DeclCXX.h:2123
Represents a C++ base or member initializer.
Definition: DeclCXX.h:2238
bool isParsingBaseSpecifiers() const
Definition: DeclCXX.h:795
LanguageIDs
Represents the language in a linkage specification.
Definition: DeclCXX.h:2819
bool needsOverloadResolutionForMoveAssignment() const
Determine whether we need to eagerly declare a move assignment operator for this class.
Definition: DeclCXX.h:1166
IndirectFieldDecl * getIndirectMember() const
Definition: DeclCXX.h:2385
friend TrailingObjects
Definition: OpenMPClause.h:89
static bool classofKind(Kind K)
Definition: DeclCXX.h:3777
base_class_const_iterator vbases_begin() const
Definition: DeclCXX.h:836
static LinkageSpecDecl * castFromDeclContext(const DeclContext *DC)
Definition: DeclCXX.h:2894
static UsingShadowDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation Loc, UsingDecl *Using, NamedDecl *Target)
Definition: DeclCXX.h:3167
const DeclContext * getCommonAncestor() const
Definition: DeclCXX.h:2977
AnyFunctionDecl(FunctionDecl *FD)
Definition: DeclCXX.h:84
Represents a base class of a C++ class.
Definition: DeclCXX.h:192
bool hasTypename() const
Return true if the using declaration has &#39;typename&#39;.
Definition: DeclCXX.h:3400
static bool classofKind(Kind K)
Definition: DeclCXX.h:1963
bool needsImplicitCopyConstructor() const
Determine whether this class needs an implicit copy constructor to be lazily declared.
Definition: DeclCXX.h:993
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
Definition: TypeLoc.h:239
X
Add a minimal nested name specifier fixit hint to allow lookup of a tag name from an outer enclosing ...
Definition: SemaDecl.cpp:13462
bool hasMutableFields() const
Determine whether this class, or any of its class subobjects, contains a mutable field.
Definition: DeclCXX.h:1346
shadow_range shadows() const
Definition: DeclCXX.h:3445
static bool classofKind(Kind K)
Definition: DeclCXX.h:173
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:1142
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
Definition: Type.h:5905
Represents a C++ struct/union/class.
Definition: DeclCXX.h:300
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:3819
bool hasUserDeclaredMoveConstructor() const
Determine whether this class has had a move constructor declared by the user.
Definition: DeclCXX.h:1040
bool hasSimpleMoveAssignment() const
true if we know for sure that this class has a single, accessible, unambiguous move assignment operat...
Definition: DeclCXX.h:940
static bool classof(const Decl *D)
Definition: DeclCXX.h:2672
SourceLocation getEllipsisLoc() const
For a pack expansion, determine the location of the ellipsis.
Definition: DeclCXX.h:263
UsingShadowDecl * getNextUsingShadowDecl() const
The next using shadow declaration contained in the shadow decl chain of the using declaration which i...
Definition: DeclCXX.h:3213
An object for streaming information to a record.
Definition: ASTWriter.h:746
static bool classofKind(Kind K)
Definition: DeclCXX.h:3550
Provides information a specialization of a member of a class template, which may be a member function...
Definition: DeclTemplate.h:608
LambdaCaptureDefault getLambdaCaptureDefault() const
Definition: DeclCXX.h:1215
bool isDependentLambda() const
Determine whether this lambda expression was known to be dependent at the time it was created...
Definition: DeclCXX.h:1950
base_class_iterator bases_end()
Definition: DeclCXX.h:820
friend bool operator==(shadow_iterator x, shadow_iterator y)
Definition: DeclCXX.h:3435
shadow_iterator & operator++()
Definition: DeclCXX.h:3424
bool isFailed() const
Definition: DeclCXX.h:3768
Declaration of a class template.
Writes an AST file containing the contents of a translation unit.
Definition: ASTWriter.h:103
bool hasInheritedAssignment() const
Determine whether this class has a using-declaration that names a base class assignment operator...
Definition: DeclCXX.h:1522
bool isOffset() const
Whether this pointer is currently stored as an offset.
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1566
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:3388
SourceLocation getEllipsisLoc() const
Get the location of the ellipsis if this is a pack expansion.
Definition: DeclCXX.h:3713
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:3325
Expr * getBinding() const
Get the expression to which this declaration is bound.
Definition: DeclCXX.h:3810
static bool classof(const Decl *D)
Definition: DeclCXX.h:3923
SourceLocation getUsingLoc() const
Returns the source location of the &#39;using&#39; keyword.
Definition: DeclCXX.h:3689
bool implicitCopyConstructorHasConstParam() const
Determine whether an implicit copy constructor for this type would have a parameter with a const-qual...
Definition: DeclCXX.h:1014
ASTContext::overridden_method_range overridden_method_range
Definition: DeclCXX.h:2145
BasePaths - Represents the set of paths from a derived class to one of its (direct or indirect) bases...
capture_const_iterator captures_begin() const
Definition: DeclCXX.h:1242
bool needsImplicitMoveConstructor() const
Determine whether this class should get an implicit move constructor or if any existing special membe...
Definition: DeclCXX.h:1079
bool hasDirectFields() const
Determine whether this class has direct non-static data members.
Definition: DeclCXX.h:1320
An instance of this class represents the declaration of a property member.
Definition: DeclCXX.h:3905
SourceLocation getNamespaceLoc() const
Returns the location of the namespace keyword.
Definition: DeclCXX.h:3102
AccessSpecifier getAccessSpecifierAsWritten() const
Retrieves the access specifier as written in the source code (which may mean that no access specifier...
Definition: DeclCXX.h:284
shadow_iterator operator++(int)
Definition: DeclCXX.h:3429
NamedDecl * get() const
Retrieve the underlying function or function template.
Definition: DeclCXX.h:92
A trivial tuple used to represent a source range.
static bool classofKind(Kind K)
Definition: DeclCXX.h:2800
FunctionDecl * getCanonicalDecl() override
Retrieves the "canonical" declaration of the given declaration.
Definition: Decl.cpp:2891
static bool classofKind(Kind K)
Definition: DeclCXX.h:2024
This represents a decl that may have a name.
Definition: Decl.h:248
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:1022
static DeclarationName getUsingDirectiveName()
getUsingDirectiveName - Return name for all using-directives.
redeclarable_base::redecl_iterator redecl_iterator
Definition: DeclCXX.h:3176
Represents a C++ namespace alias.
Definition: DeclCXX.h:3013
SourceRange getSourceRange() const LLVM_READONLY
Retrieves the source range that contains the entire base specifier.
Definition: DeclCXX.h:235
ArrayRef< NamedDecl * > expansions() const
Get the set of using declarations that this pack expanded into.
Definition: DeclCXX.h:3531
Represents C++ using-directive.
Definition: DeclCXX.h:2909
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:1274
ctor_range ctors() const
Definition: DeclCXX.h:873
SourceLocation getBegin() const
SourceLocation ColonLoc
Location of &#39;:&#39;.
Definition: OpenMPClause.h:98
TemplateDecl * getDeducedTemplate() const
Get the template for which this guide performs deduction.
Definition: DeclCXX.h:2012
bool hasDefaultConstructor() const
Determine whether this class has any default constructors.
Definition: DeclCXX.h:953
ctor_iterator ctor_begin() const
Definition: DeclCXX.h:875
base_class_range vbases()
Definition: DeclCXX.h:828
Declaration of a template function.
Definition: DeclTemplate.h:968
void setTargetDecl(NamedDecl *ND)
Sets the underlying declaration which has been brought into the local scope.
Definition: DeclCXX.h:3198
SourceLocation getLocation() const
Definition: DeclBase.h:417
Represents a shadow declaration introduced into a scope by a (resolved) using declaration.
Definition: DeclCXX.h:3132
Represents a pack of using declarations that a single using-declarator pack-expanded into...
Definition: DeclCXX.h:3495
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:3188
ConstructorUsingShadowDecl * getShadowDecl() const
Definition: DeclCXX.h:2449
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:3109
SourceRange getSourceRange() const override LLVM_READONLY
Source range that this declaration covers.
Definition: DeclCXX.h:159
CXXRecordDecl * getParent()
Definition: DeclCXX.h:3292
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:2656
method_range methods() const
Definition: DeclCXX.h:853
QualType getType() const
Retrieves the type of the base class.
Definition: DeclCXX.h:291
bool defaultedDestructorIsDeleted() const
true if a defaulted destructor for this class would be deleted.
Definition: DeclCXX.h:917