1 //===-- DeclCXX.h - Classes for representing C++ declarations -*- C++ -*-=====//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the C++ Decl subclasses, other than those for
11 // templates (in DeclTemplate.h) and friends (in DeclFriend.h).
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CLANG_AST_DECLCXX_H
16 #define LLVM_CLANG_AST_DECLCXX_H
18 #include "clang/AST/Expr.h"
19 #include "clang/AST/Decl.h"
20 #include "clang/AST/TypeLoc.h"
21 #include "clang/AST/UnresolvedSet.h"
22 #include "llvm/ADT/SmallPtrSet.h"
26 class ClassTemplateDecl;
27 class ClassTemplateSpecializationDecl;
30 class CXXConstructorDecl;
31 class CXXConversionDecl;
32 class CXXDestructorDecl;
35 class CXXMemberLookupCriteria;
36 class CXXFinalOverriderMap;
37 class CXXIndirectPrimaryBaseSet;
40 /// \brief Represents any kind of function declaration, whether it is a
41 /// concrete function or a function template.
42 class AnyFunctionDecl {
45 AnyFunctionDecl(NamedDecl *ND) : Function(ND) { }
48 AnyFunctionDecl(FunctionDecl *FD) : Function(FD) { }
49 AnyFunctionDecl(FunctionTemplateDecl *FTD);
51 /// \brief Implicily converts any function or function template into a
52 /// named declaration.
53 operator NamedDecl *() const { return Function; }
55 /// \brief Retrieve the underlying function or function template.
56 NamedDecl *get() const { return Function; }
58 static AnyFunctionDecl getFromNamedDecl(NamedDecl *ND) {
59 return AnyFunctionDecl(ND);
63 } // end namespace clang
66 /// Implement simplify_type for AnyFunctionDecl, so that we can dyn_cast from
67 /// AnyFunctionDecl to any function or function template declaration.
68 template<> struct simplify_type<const ::clang::AnyFunctionDecl> {
69 typedef ::clang::NamedDecl* SimpleType;
70 static SimpleType getSimplifiedValue(const ::clang::AnyFunctionDecl &Val) {
74 template<> struct simplify_type< ::clang::AnyFunctionDecl>
75 : public simplify_type<const ::clang::AnyFunctionDecl> {};
77 // Provide PointerLikeTypeTraits for non-cvr pointers.
79 class PointerLikeTypeTraits< ::clang::AnyFunctionDecl> {
81 static inline void *getAsVoidPointer(::clang::AnyFunctionDecl F) {
84 static inline ::clang::AnyFunctionDecl getFromVoidPointer(void *P) {
85 return ::clang::AnyFunctionDecl::getFromNamedDecl(
86 static_cast< ::clang::NamedDecl*>(P));
89 enum { NumLowBitsAvailable = 2 };
92 } // end namespace llvm
96 /// AccessSpecDecl - An access specifier followed by colon ':'.
98 /// An objects of this class represents sugar for the syntactic occurrence
99 /// of an access specifier followed by a colon in the list of member
100 /// specifiers of a C++ class definition.
102 /// Note that they do not represent other uses of access specifiers,
103 /// such as those occurring in a list of base specifiers.
104 /// Also note that this class has nothing to do with so-called
105 /// "access declarations" (C++98 11.3 [class.access.dcl]).
106 class AccessSpecDecl : public Decl {
107 /// ColonLoc - The location of the ':'.
108 SourceLocation ColonLoc;
110 AccessSpecDecl(AccessSpecifier AS, DeclContext *DC,
111 SourceLocation ASLoc, SourceLocation ColonLoc)
112 : Decl(AccessSpec, DC, ASLoc), ColonLoc(ColonLoc) {
115 AccessSpecDecl(EmptyShell Empty)
116 : Decl(AccessSpec, Empty) { }
118 /// getAccessSpecifierLoc - The location of the access specifier.
119 SourceLocation getAccessSpecifierLoc() const { return getLocation(); }
120 /// setAccessSpecifierLoc - Sets the location of the access specifier.
121 void setAccessSpecifierLoc(SourceLocation ASLoc) { setLocation(ASLoc); }
123 /// getColonLoc - The location of the colon following the access specifier.
124 SourceLocation getColonLoc() const { return ColonLoc; }
125 /// setColonLoc - Sets the location of the colon.
126 void setColonLoc(SourceLocation CLoc) { ColonLoc = CLoc; }
128 SourceRange getSourceRange() const {
129 return SourceRange(getAccessSpecifierLoc(), getColonLoc());
132 static AccessSpecDecl *Create(ASTContext &C, AccessSpecifier AS,
133 DeclContext *DC, SourceLocation ASLoc,
134 SourceLocation ColonLoc) {
135 return new (C) AccessSpecDecl(AS, DC, ASLoc, ColonLoc);
137 static AccessSpecDecl *Create(ASTContext &C, EmptyShell Empty) {
138 return new (C) AccessSpecDecl(Empty);
141 // Implement isa/cast/dyncast/etc.
142 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
143 static bool classof(const AccessSpecDecl *D) { return true; }
144 static bool classofKind(Kind K) { return K == AccessSpec; }
148 /// CXXBaseSpecifier - A base class of a C++ class.
150 /// Each CXXBaseSpecifier represents a single, direct base class (or
151 /// struct) of a C++ class (or struct). It specifies the type of that
152 /// base class, whether it is a virtual or non-virtual base, and what
153 /// level of access (public, protected, private) is used for the
154 /// derivation. For example:
159 /// class C : public virtual A, protected B { };
162 /// In this code, C will have two CXXBaseSpecifiers, one for "public
163 /// virtual A" and the other for "protected B".
164 class CXXBaseSpecifier {
165 /// Range - The source code range that covers the full base
166 /// specifier, including the "virtual" (if present) and access
167 /// specifier (if present).
170 /// \brief The source location of the ellipsis, if this is a pack
172 SourceLocation EllipsisLoc;
174 /// Virtual - Whether this is a virtual base class or not.
177 /// BaseOfClass - Whether this is the base of a class (true) or of a
178 /// struct (false). This determines the mapping from the access
179 /// specifier as written in the source code to the access specifier
180 /// used for semantic analysis.
181 bool BaseOfClass : 1;
183 /// Access - Access specifier as written in the source code (which
184 /// may be AS_none). The actual type of data stored here is an
185 /// AccessSpecifier, but we use "unsigned" here to work around a
189 /// InheritConstructors - Whether the class contains a using declaration
190 /// to inherit the named class's constructors.
191 bool InheritConstructors : 1;
193 /// BaseTypeInfo - The type of the base class. This will be a class or struct
194 /// (or a typedef of such). The source code range does not include the
195 /// "virtual" or access specifier.
196 TypeSourceInfo *BaseTypeInfo;
199 CXXBaseSpecifier() { }
201 CXXBaseSpecifier(SourceRange R, bool V, bool BC, AccessSpecifier A,
202 TypeSourceInfo *TInfo, SourceLocation EllipsisLoc)
203 : Range(R), EllipsisLoc(EllipsisLoc), Virtual(V), BaseOfClass(BC),
204 Access(A), InheritConstructors(false), BaseTypeInfo(TInfo) { }
206 /// getSourceRange - Retrieves the source range that contains the
207 /// entire base specifier.
208 SourceRange getSourceRange() const { return Range; }
210 /// isVirtual - Determines whether the base class is a virtual base
212 bool isVirtual() const { return Virtual; }
214 /// \brief Determine whether this base class is a base of a class declared
215 /// with the 'class' keyword (vs. one declared with the 'struct' keyword).
216 bool isBaseOfClass() const { return BaseOfClass; }
218 /// \brief Determine whether this base specifier is a pack expansion.
219 bool isPackExpansion() const { return EllipsisLoc.isValid(); }
221 /// \brief Determine whether this base class's constructors get inherited.
222 bool getInheritConstructors() const { return InheritConstructors; }
224 /// \brief Set that this base class's constructors should be inherited.
225 void setInheritConstructors(bool Inherit = true) {
226 InheritConstructors = Inherit;
229 /// \brief For a pack expansion, determine the location of the ellipsis.
230 SourceLocation getEllipsisLoc() const {
234 /// getAccessSpecifier - Returns the access specifier for this base
235 /// specifier. This is the actual base specifier as used for
236 /// semantic analysis, so the result can never be AS_none. To
237 /// retrieve the access specifier as written in the source code, use
238 /// getAccessSpecifierAsWritten().
239 AccessSpecifier getAccessSpecifier() const {
240 if ((AccessSpecifier)Access == AS_none)
241 return BaseOfClass? AS_private : AS_public;
243 return (AccessSpecifier)Access;
246 /// getAccessSpecifierAsWritten - Retrieves the access specifier as
247 /// written in the source code (which may mean that no access
248 /// specifier was explicitly written). Use getAccessSpecifier() to
249 /// retrieve the access specifier for use in semantic analysis.
250 AccessSpecifier getAccessSpecifierAsWritten() const {
251 return (AccessSpecifier)Access;
254 /// getType - Retrieves the type of the base class. This type will
255 /// always be an unqualified class type.
256 QualType getType() const { return BaseTypeInfo->getType(); }
258 /// getTypeLoc - Retrieves the type and source location of the base class.
259 TypeSourceInfo *getTypeSourceInfo() const { return BaseTypeInfo; }
262 /// CXXRecordDecl - Represents a C++ struct/union/class.
263 /// FIXME: This class will disappear once we've properly taught RecordDecl
264 /// to deal with C++-specific things.
265 class CXXRecordDecl : public RecordDecl {
267 friend void TagDecl::startDefinition();
269 struct DefinitionData {
270 DefinitionData(CXXRecordDecl *D);
272 /// UserDeclaredConstructor - True when this class has a
273 /// user-declared constructor.
274 bool UserDeclaredConstructor : 1;
276 /// UserDeclaredCopyConstructor - True when this class has a
277 /// user-declared copy constructor.
278 bool UserDeclaredCopyConstructor : 1;
280 /// UserDeclareMoveConstructor - True when this class has a
281 /// user-declared move constructor.
282 bool UserDeclaredMoveConstructor : 1;
284 /// UserDeclaredCopyAssignment - True when this class has a
285 /// user-declared copy assignment operator.
286 bool UserDeclaredCopyAssignment : 1;
288 /// UserDeclareMoveAssignment - True when this class has a
289 /// user-declared move assignment.
290 bool UserDeclaredMoveAssignment : 1;
292 /// UserDeclaredDestructor - True when this class has a
293 /// user-declared destructor.
294 bool UserDeclaredDestructor : 1;
296 /// Aggregate - True when this class is an aggregate.
299 /// PlainOldData - True when this class is a POD-type.
300 bool PlainOldData : 1;
302 /// Empty - true when this class is empty for traits purposes,
303 /// i.e. has no data members other than 0-width bit-fields, has no
304 /// virtual function/base, and doesn't inherit from a non-empty
305 /// class. Doesn't take union-ness into account.
308 /// Polymorphic - True when this class is polymorphic, i.e. has at
309 /// least one virtual member or derives from a polymorphic class.
310 bool Polymorphic : 1;
312 /// Abstract - True when this class is abstract, i.e. has at least
313 /// one pure virtual function, (that can come from a base class).
316 /// IsStandardLayout - True when this class has standard layout.
318 /// C++0x [class]p7. A standard-layout class is a class that:
319 /// * has no non-static data members of type non-standard-layout class (or
320 /// array of such types) or reference,
321 /// * has no virtual functions (10.3) and no virtual base classes (10.1),
322 /// * has the same access control (Clause 11) for all non-static data members
323 /// * has no non-standard-layout base classes,
324 /// * either has no non-static data members in the most derived class and at
325 /// most one base class with non-static data members, or has no base
326 /// classes with non-static data members, and
327 /// * has no base classes of the same type as the first non-static data
329 bool IsStandardLayout : 1;
331 /// HasNoNonEmptyBases - True when there are no non-empty base classes.
333 /// This is a helper bit of state used to implement IsStandardLayout more
335 bool HasNoNonEmptyBases : 1;
337 /// HasPrivateFields - True when there are private non-static data members.
338 bool HasPrivateFields : 1;
340 /// HasProtectedFields - True when there are protected non-static data
342 bool HasProtectedFields : 1;
344 /// HasPublicFields - True when there are private non-static data members.
345 bool HasPublicFields : 1;
347 /// \brief True if this class (or any subobject) has mutable fields.
348 bool HasMutableFields : 1;
350 /// HasTrivialDefaultConstructor - True when, if this class has a default
351 /// constructor, this default constructor is trivial.
353 /// C++0x [class.ctor]p5
354 /// A default constructor is trivial if it is not user-provided and if
355 /// -- its class has no virtual functions and no virtual base classes,
357 /// -- no non-static data member of its class has a
358 /// brace-or-equal-initializer, and
359 /// -- all the direct base classes of its class have trivial
360 /// default constructors, and
361 /// -- for all the nonstatic data members of its class that are of class
362 /// type (or array thereof), each such class has a trivial
363 /// default constructor.
364 bool HasTrivialDefaultConstructor : 1;
366 /// HasConstexprNonCopyMoveConstructor - True when this class has at least
367 /// one constexpr constructor which is neither the copy nor move
369 bool HasConstexprNonCopyMoveConstructor : 1;
371 /// HasTrivialCopyConstructor - True when this class has a trivial copy
374 /// C++0x [class.copy]p13:
375 /// A copy/move constructor for class X is trivial if it is neither
376 /// user-provided and if
377 /// -- class X has no virtual functions and no virtual base classes, and
378 /// -- the constructor selected to copy/move each direct base class
379 /// subobject is trivial, and
380 /// -- for each non-static data member of X that is of class type (or an
381 /// array thereof), the constructor selected to copy/move that member
383 /// otherwise the copy/move constructor is non-trivial.
384 bool HasTrivialCopyConstructor : 1;
386 /// HasTrivialMoveConstructor - True when this class has a trivial move
389 /// C++0x [class.copy]p13:
390 /// A copy/move constructor for class X is trivial if it is neither
391 /// user-provided and if
392 /// -- class X has no virtual functions and no virtual base classes, and
393 /// -- the constructor selected to copy/move each direct base class
394 /// subobject is trivial, and
395 /// -- for each non-static data member of X that is of class type (or an
396 /// array thereof), the constructor selected to copy/move that member
398 /// otherwise the copy/move constructor is non-trivial.
399 bool HasTrivialMoveConstructor : 1;
401 /// HasTrivialCopyAssignment - True when this class has a trivial copy
402 /// assignment operator.
404 /// C++0x [class.copy]p27:
405 /// A copy/move assignment operator for class X is trivial if it is
406 /// neither user-provided nor deleted and if
407 /// -- class X has no virtual functions and no virtual base classes, and
408 /// -- the assignment operator selected to copy/move each direct base
409 /// class subobject is trivial, and
410 /// -- for each non-static data member of X that is of class type (or an
411 /// array thereof), the assignment operator selected to copy/move
412 /// that member is trivial;
413 /// otherwise the copy/move assignment operator is non-trivial.
414 bool HasTrivialCopyAssignment : 1;
416 /// HasTrivialMoveAssignment - True when this class has a trivial move
417 /// assignment operator.
419 /// C++0x [class.copy]p27:
420 /// A copy/move assignment operator for class X is trivial if it is
421 /// neither user-provided nor deleted and if
422 /// -- class X has no virtual functions and no virtual base classes, and
423 /// -- the assignment operator selected to copy/move each direct base
424 /// class subobject is trivial, and
425 /// -- for each non-static data member of X that is of class type (or an
426 /// array thereof), the assignment operator selected to copy/move
427 /// that member is trivial;
428 /// otherwise the copy/move assignment operator is non-trivial.
429 bool HasTrivialMoveAssignment : 1;
431 /// HasTrivialDestructor - True when this class has a trivial destructor.
433 /// C++ [class.dtor]p3. A destructor is trivial if it is an
434 /// implicitly-declared destructor and if:
435 /// * all of the direct base classes of its class have trivial destructors
437 /// * for all of the non-static data members of its class that are of class
438 /// type (or array thereof), each such class has a trivial destructor.
439 bool HasTrivialDestructor : 1;
441 /// HasNonLiteralTypeFieldsOrBases - True when this class contains at least
442 /// one non-static data member or base class of non literal type.
443 bool HasNonLiteralTypeFieldsOrBases : 1;
445 /// ComputedVisibleConversions - True when visible conversion functions are
446 /// already computed and are available.
447 bool ComputedVisibleConversions : 1;
449 /// \brief Whether we have a C++0x user-provided default constructor (not
450 /// explicitly deleted or defaulted).
451 bool UserProvidedDefaultConstructor : 1;
453 /// \brief Whether we have already declared the default constructor.
454 bool DeclaredDefaultConstructor : 1;
456 /// \brief Whether we have already declared the copy constructor.
457 bool DeclaredCopyConstructor : 1;
459 /// \brief Whether we have already declared the move constructor.
460 bool DeclaredMoveConstructor : 1;
462 /// \brief Whether we have already declared the copy-assignment operator.
463 bool DeclaredCopyAssignment : 1;
465 /// \brief Whether we have already declared the move-assignment operator.
466 bool DeclaredMoveAssignment : 1;
468 /// \brief Whether we have already declared a destructor within the class.
469 bool DeclaredDestructor : 1;
471 /// \brief Whether an implicit move constructor was attempted to be declared
472 /// but would have been deleted.
473 bool FailedImplicitMoveConstructor : 1;
475 /// \brief Whether an implicit move assignment operator was attempted to be
476 /// declared but would have been deleted.
477 bool FailedImplicitMoveAssignment : 1;
479 /// NumBases - The number of base class specifiers in Bases.
482 /// NumVBases - The number of virtual base class specifiers in VBases.
485 /// Bases - Base classes of this class.
486 /// FIXME: This is wasted space for a union.
487 LazyCXXBaseSpecifiersPtr Bases;
489 /// VBases - direct and indirect virtual base classes of this class.
490 LazyCXXBaseSpecifiersPtr VBases;
492 /// Conversions - Overload set containing the conversion functions
493 /// of this C++ class (but not its inherited conversion
494 /// functions). Each of the entries in this overload set is a
495 /// CXXConversionDecl.
496 UnresolvedSet<4> Conversions;
498 /// VisibleConversions - Overload set containing the conversion
499 /// functions of this C++ class and all those inherited conversion
500 /// functions that are visible in this class. Each of the entries
501 /// in this overload set is a CXXConversionDecl or a
502 /// FunctionTemplateDecl.
503 UnresolvedSet<4> VisibleConversions;
505 /// Definition - The declaration which defines this record.
506 CXXRecordDecl *Definition;
508 /// FirstFriend - The first friend declaration in this class, or
509 /// null if there aren't any. This is actually currently stored
510 /// in reverse order.
511 FriendDecl *FirstFriend;
513 /// \brief Retrieve the set of direct base classes.
514 CXXBaseSpecifier *getBases() const {
515 return Bases.get(Definition->getASTContext().getExternalSource());
518 /// \brief Retrieve the set of virtual base classes.
519 CXXBaseSpecifier *getVBases() const {
520 return VBases.get(Definition->getASTContext().getExternalSource());
524 struct DefinitionData &data() {
525 assert(DefinitionData && "queried property of class with no definition");
526 return *DefinitionData;
529 const struct DefinitionData &data() const {
530 assert(DefinitionData && "queried property of class with no definition");
531 return *DefinitionData;
534 /// \brief The template or declaration that this declaration
535 /// describes or was instantiated from, respectively.
537 /// For non-templates, this value will be NULL. For record
538 /// declarations that describe a class template, this will be a
539 /// pointer to a ClassTemplateDecl. For member
540 /// classes of class template specializations, this will be the
541 /// MemberSpecializationInfo referring to the member class that was
542 /// instantiated or specialized.
543 llvm::PointerUnion<ClassTemplateDecl*, MemberSpecializationInfo*>
544 TemplateOrInstantiation;
546 friend class DeclContext;
548 /// \brief Notify the class that member has been added.
550 /// This routine helps maintain information about the class based on which
551 /// members have been added. It will be invoked by DeclContext::addDecl()
552 /// whenever a member is added to this record.
553 void addedMember(Decl *D);
555 void markedVirtualFunctionPure();
556 friend void FunctionDecl::setPure(bool);
559 CXXRecordDecl(Kind K, TagKind TK, DeclContext *DC,
560 SourceLocation StartLoc, SourceLocation IdLoc,
561 IdentifierInfo *Id, CXXRecordDecl *PrevDecl);
564 /// base_class_iterator - Iterator that traverses the base classes
566 typedef CXXBaseSpecifier* base_class_iterator;
568 /// base_class_const_iterator - Iterator that traverses the base
569 /// classes of a class.
570 typedef const CXXBaseSpecifier* base_class_const_iterator;
572 /// reverse_base_class_iterator = Iterator that traverses the base classes
573 /// of a class in reverse order.
574 typedef std::reverse_iterator<base_class_iterator>
575 reverse_base_class_iterator;
577 /// reverse_base_class_iterator = Iterator that traverses the base classes
578 /// of a class in reverse order.
579 typedef std::reverse_iterator<base_class_const_iterator>
580 reverse_base_class_const_iterator;
582 virtual CXXRecordDecl *getCanonicalDecl() {
583 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl());
585 virtual const CXXRecordDecl *getCanonicalDecl() const {
586 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl());
589 const CXXRecordDecl *getPreviousDeclaration() const {
590 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDeclaration());
592 CXXRecordDecl *getPreviousDeclaration() {
593 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDeclaration());
596 CXXRecordDecl *getDefinition() const {
597 if (!DefinitionData) return 0;
598 return data().Definition;
601 bool hasDefinition() const { return DefinitionData != 0; }
603 static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC,
604 SourceLocation StartLoc, SourceLocation IdLoc,
605 IdentifierInfo *Id, CXXRecordDecl* PrevDecl=0,
606 bool DelayTypeCreation = false);
607 static CXXRecordDecl *Create(const ASTContext &C, EmptyShell Empty);
609 bool isDynamicClass() const {
610 return data().Polymorphic || data().NumVBases != 0;
613 /// setBases - Sets the base classes of this struct or class.
614 void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases);
616 /// getNumBases - Retrieves the number of base classes of this
618 unsigned getNumBases() const { return data().NumBases; }
620 base_class_iterator bases_begin() { return data().getBases(); }
621 base_class_const_iterator bases_begin() const { return data().getBases(); }
622 base_class_iterator bases_end() { return bases_begin() + data().NumBases; }
623 base_class_const_iterator bases_end() const {
624 return bases_begin() + data().NumBases;
626 reverse_base_class_iterator bases_rbegin() {
627 return reverse_base_class_iterator(bases_end());
629 reverse_base_class_const_iterator bases_rbegin() const {
630 return reverse_base_class_const_iterator(bases_end());
632 reverse_base_class_iterator bases_rend() {
633 return reverse_base_class_iterator(bases_begin());
635 reverse_base_class_const_iterator bases_rend() const {
636 return reverse_base_class_const_iterator(bases_begin());
639 /// getNumVBases - Retrieves the number of virtual base classes of this
641 unsigned getNumVBases() const { return data().NumVBases; }
643 base_class_iterator vbases_begin() { return data().getVBases(); }
644 base_class_const_iterator vbases_begin() const { return data().getVBases(); }
645 base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; }
646 base_class_const_iterator vbases_end() const {
647 return vbases_begin() + data().NumVBases;
649 reverse_base_class_iterator vbases_rbegin() {
650 return reverse_base_class_iterator(vbases_end());
652 reverse_base_class_const_iterator vbases_rbegin() const {
653 return reverse_base_class_const_iterator(vbases_end());
655 reverse_base_class_iterator vbases_rend() {
656 return reverse_base_class_iterator(vbases_begin());
658 reverse_base_class_const_iterator vbases_rend() const {
659 return reverse_base_class_const_iterator(vbases_begin());
662 /// \brief Determine whether this class has any dependent base classes.
663 bool hasAnyDependentBases() const;
665 /// Iterator access to method members. The method iterator visits
666 /// all method members of the class, including non-instance methods,
667 /// special methods, etc.
668 typedef specific_decl_iterator<CXXMethodDecl> method_iterator;
670 /// method_begin - Method begin iterator. Iterates in the order the methods
672 method_iterator method_begin() const {
673 return method_iterator(decls_begin());
675 /// method_end - Method end iterator.
676 method_iterator method_end() const {
677 return method_iterator(decls_end());
680 /// Iterator access to constructor members.
681 typedef specific_decl_iterator<CXXConstructorDecl> ctor_iterator;
683 ctor_iterator ctor_begin() const {
684 return ctor_iterator(decls_begin());
686 ctor_iterator ctor_end() const {
687 return ctor_iterator(decls_end());
690 /// An iterator over friend declarations. All of these are defined
692 class friend_iterator;
693 friend_iterator friend_begin() const;
694 friend_iterator friend_end() const;
695 void pushFriendDecl(FriendDecl *FD);
697 /// Determines whether this record has any friends.
698 bool hasFriends() const {
699 return data().FirstFriend != 0;
702 /// \brief Determine if we need to declare a default constructor for
705 /// This value is used for lazy creation of default constructors.
706 bool needsImplicitDefaultConstructor() const {
707 return !data().UserDeclaredConstructor &&
708 !data().DeclaredDefaultConstructor;
711 /// hasDeclaredDefaultConstructor - Whether this class's default constructor
712 /// has been declared (either explicitly or implicitly).
713 bool hasDeclaredDefaultConstructor() const {
714 return data().DeclaredDefaultConstructor;
717 /// hasConstCopyConstructor - Determines whether this class has a
718 /// copy constructor that accepts a const-qualified argument.
719 bool hasConstCopyConstructor() const;
721 /// getCopyConstructor - Returns the copy constructor for this class
722 CXXConstructorDecl *getCopyConstructor(unsigned TypeQuals) const;
724 /// getMoveConstructor - Returns the move constructor for this class
725 CXXConstructorDecl *getMoveConstructor() const;
727 /// \brief Retrieve the copy-assignment operator for this class, if available.
729 /// This routine attempts to find the copy-assignment operator for this
730 /// class, using a simplistic form of overload resolution.
732 /// \param ArgIsConst Whether the argument to the copy-assignment operator
733 /// is const-qualified.
735 /// \returns The copy-assignment operator that can be invoked, or NULL if
736 /// a unique copy-assignment operator could not be found.
737 CXXMethodDecl *getCopyAssignmentOperator(bool ArgIsConst) const;
739 /// getMoveAssignmentOperator - Returns the move assignment operator for this
741 CXXMethodDecl *getMoveAssignmentOperator() const;
743 /// hasUserDeclaredConstructor - Whether this class has any
744 /// user-declared constructors. When true, a default constructor
745 /// will not be implicitly declared.
746 bool hasUserDeclaredConstructor() const {
747 return data().UserDeclaredConstructor;
750 /// hasUserProvidedDefaultconstructor - Whether this class has a
751 /// user-provided default constructor per C++0x.
752 bool hasUserProvidedDefaultConstructor() const {
753 return data().UserProvidedDefaultConstructor;
756 /// hasUserDeclaredCopyConstructor - Whether this class has a
757 /// user-declared copy constructor. When false, a copy constructor
758 /// will be implicitly declared.
759 bool hasUserDeclaredCopyConstructor() const {
760 return data().UserDeclaredCopyConstructor;
763 /// \brief Determine whether this class has had its copy constructor
764 /// declared, either via the user or via an implicit declaration.
766 /// This value is used for lazy creation of copy constructors.
767 bool hasDeclaredCopyConstructor() const {
768 return data().DeclaredCopyConstructor;
771 /// hasUserDeclaredMoveOperation - Whether this class has a user-
772 /// declared move constructor or assignment operator. When false, a
773 /// move constructor and assignment operator may be implicitly declared.
774 bool hasUserDeclaredMoveOperation() const {
775 return data().UserDeclaredMoveConstructor ||
776 data().UserDeclaredMoveAssignment;
779 /// \brief Determine whether this class has had a move constructor
780 /// declared by the user.
781 bool hasUserDeclaredMoveConstructor() const {
782 return data().UserDeclaredMoveConstructor;
785 /// \brief Determine whether this class has had a move constructor
787 bool hasDeclaredMoveConstructor() const {
788 return data().DeclaredMoveConstructor;
791 /// \brief Determine whether implicit move constructor generation for this
792 /// class has failed before.
793 bool hasFailedImplicitMoveConstructor() const {
794 return data().FailedImplicitMoveConstructor;
797 /// \brief Set whether implicit move constructor generation for this class
798 /// has failed before.
799 void setFailedImplicitMoveConstructor(bool Failed = true) {
800 data().FailedImplicitMoveConstructor = Failed;
803 /// \brief Determine whether this class should get an implicit move
804 /// constructor or if any existing special member function inhibits this.
806 /// Covers all bullets of C++0x [class.copy]p9 except the last, that the
807 /// constructor wouldn't be deleted, which is only looked up from a cached
809 bool needsImplicitMoveConstructor() const {
810 return !hasFailedImplicitMoveConstructor() &&
811 !hasDeclaredMoveConstructor() &&
812 !hasUserDeclaredCopyConstructor() &&
813 !hasUserDeclaredCopyAssignment() &&
814 !hasUserDeclaredMoveAssignment() &&
815 !hasUserDeclaredDestructor();
818 /// hasUserDeclaredCopyAssignment - Whether this class has a
819 /// user-declared copy assignment operator. When false, a copy
820 /// assigment operator will be implicitly declared.
821 bool hasUserDeclaredCopyAssignment() const {
822 return data().UserDeclaredCopyAssignment;
825 /// \brief Determine whether this class has had its copy assignment operator
826 /// declared, either via the user or via an implicit declaration.
828 /// This value is used for lazy creation of copy assignment operators.
829 bool hasDeclaredCopyAssignment() const {
830 return data().DeclaredCopyAssignment;
833 /// \brief Determine whether this class has had a move assignment
834 /// declared by the user.
835 bool hasUserDeclaredMoveAssignment() const {
836 return data().UserDeclaredMoveAssignment;
839 /// hasDeclaredMoveAssignment - Whether this class has a
840 /// declared move assignment operator.
841 bool hasDeclaredMoveAssignment() const {
842 return data().DeclaredMoveAssignment;
845 /// \brief Determine whether implicit move assignment generation for this
846 /// class has failed before.
847 bool hasFailedImplicitMoveAssignment() const {
848 return data().FailedImplicitMoveAssignment;
851 /// \brief Set whether implicit move assignment generation for this class
852 /// has failed before.
853 void setFailedImplicitMoveAssignment(bool Failed = true) {
854 data().FailedImplicitMoveAssignment = Failed;
857 /// \brief Determine whether this class should get an implicit move
858 /// assignment operator or if any existing special member function inhibits
861 /// Covers all bullets of C++0x [class.copy]p20 except the last, that the
862 /// constructor wouldn't be deleted.
863 bool needsImplicitMoveAssignment() const {
864 return !hasFailedImplicitMoveAssignment() &&
865 !hasDeclaredMoveAssignment() &&
866 !hasUserDeclaredCopyConstructor() &&
867 !hasUserDeclaredCopyAssignment() &&
868 !hasUserDeclaredMoveConstructor() &&
869 !hasUserDeclaredDestructor();
872 /// hasUserDeclaredDestructor - Whether this class has a
873 /// user-declared destructor. When false, a destructor will be
874 /// implicitly declared.
875 bool hasUserDeclaredDestructor() const {
876 return data().UserDeclaredDestructor;
879 /// \brief Determine whether this class has had its destructor declared,
880 /// either via the user or via an implicit declaration.
882 /// This value is used for lazy creation of destructors.
883 bool hasDeclaredDestructor() const { return data().DeclaredDestructor; }
885 /// getConversions - Retrieve the overload set containing all of the
886 /// conversion functions in this class.
887 UnresolvedSetImpl *getConversionFunctions() {
888 return &data().Conversions;
890 const UnresolvedSetImpl *getConversionFunctions() const {
891 return &data().Conversions;
894 typedef UnresolvedSetImpl::iterator conversion_iterator;
895 conversion_iterator conversion_begin() const {
896 return getConversionFunctions()->begin();
898 conversion_iterator conversion_end() const {
899 return getConversionFunctions()->end();
902 /// Removes a conversion function from this class. The conversion
903 /// function must currently be a member of this class. Furthermore,
904 /// this class must currently be in the process of being defined.
905 void removeConversion(const NamedDecl *Old);
907 /// getVisibleConversionFunctions - get all conversion functions visible
908 /// in current class; including conversion function templates.
909 const UnresolvedSetImpl *getVisibleConversionFunctions();
911 /// isAggregate - Whether this class is an aggregate (C++
912 /// [dcl.init.aggr]), which is a class with no user-declared
913 /// constructors, no private or protected non-static data members,
914 /// no base classes, and no virtual functions (C++ [dcl.init.aggr]p1).
915 bool isAggregate() const { return data().Aggregate; }
917 /// isPOD - Whether this class is a POD-type (C++ [class]p4), which is a class
918 /// that is an aggregate that has no non-static non-POD data members, no
919 /// reference data members, no user-defined copy assignment operator and no
920 /// user-defined destructor.
921 bool isPOD() const { return data().PlainOldData; }
923 /// isEmpty - Whether this class is empty (C++0x [meta.unary.prop]), which
924 /// means it has a virtual function, virtual base, data member (other than
925 /// 0-width bit-field) or inherits from a non-empty class. Does NOT include
926 /// a check for union-ness.
927 bool isEmpty() const { return data().Empty; }
929 /// isPolymorphic - Whether this class is polymorphic (C++ [class.virtual]),
930 /// which means that the class contains or inherits a virtual function.
931 bool isPolymorphic() const { return data().Polymorphic; }
933 /// isAbstract - Whether this class is abstract (C++ [class.abstract]),
934 /// which means that the class contains or inherits a pure virtual function.
935 bool isAbstract() const { return data().Abstract; }
937 /// isStandardLayout - Whether this class has standard layout
939 bool isStandardLayout() const { return data().IsStandardLayout; }
941 /// \brief Whether this class, or any of its class subobjects, contains a
943 bool hasMutableFields() const { return data().HasMutableFields; }
945 // hasTrivialDefaultConstructor - Whether this class has a trivial default
947 // (C++0x [class.ctor]p5)
948 bool hasTrivialDefaultConstructor() const {
949 return data().HasTrivialDefaultConstructor &&
950 (!data().UserDeclaredConstructor ||
951 data().DeclaredDefaultConstructor);
954 // hasConstexprNonCopyMoveConstructor - Whether this class has at least one
955 // constexpr constructor other than the copy or move constructors.
956 bool hasConstexprNonCopyMoveConstructor() const {
957 return data().HasConstexprNonCopyMoveConstructor;
960 // hasTrivialCopyConstructor - Whether this class has a trivial copy
961 // constructor (C++ [class.copy]p6, C++0x [class.copy]p13)
962 bool hasTrivialCopyConstructor() const {
963 return data().HasTrivialCopyConstructor;
966 // hasTrivialMoveConstructor - Whether this class has a trivial move
967 // constructor (C++0x [class.copy]p13)
968 bool hasTrivialMoveConstructor() const {
969 return data().HasTrivialMoveConstructor;
972 // hasTrivialCopyAssignment - Whether this class has a trivial copy
973 // assignment operator (C++ [class.copy]p11, C++0x [class.copy]p27)
974 bool hasTrivialCopyAssignment() const {
975 return data().HasTrivialCopyAssignment;
978 // hasTrivialMoveAssignment - Whether this class has a trivial move
979 // assignment operator (C++0x [class.copy]p27)
980 bool hasTrivialMoveAssignment() const {
981 return data().HasTrivialMoveAssignment;
984 // hasTrivialDestructor - Whether this class has a trivial destructor
985 // (C++ [class.dtor]p3)
986 bool hasTrivialDestructor() const { return data().HasTrivialDestructor; }
988 // hasNonLiteralTypeFieldsOrBases - Whether this class has a non-literal type
989 // non-static data member or base class.
990 bool hasNonLiteralTypeFieldsOrBases() const {
991 return data().HasNonLiteralTypeFieldsOrBases;
994 // isTriviallyCopyable - Whether this class is considered trivially copyable
995 // (C++0x [class]p6).
996 bool isTriviallyCopyable() const;
998 // isTrivial - Whether this class is considered trivial
1001 // A trivial class is a class that has a trivial default constructor and
1002 // is trivially copiable.
1003 bool isTrivial() const {
1004 return isTriviallyCopyable() && hasTrivialDefaultConstructor();
1007 // isLiteral - Whether this class is a literal type.
1009 // C++0x [basic.types]p10
1010 // A class type that has all the following properties:
1011 // -- a trivial destructor
1012 // -- every constructor call and full-expression in the
1013 // brace-or-equal-intializers for non-static data members (if any) is
1014 // a constant expression.
1015 // -- it is an aggregate type or has at least one constexpr constructor or
1016 // constructor template that is not a copy or move constructor, and
1017 // -- all non-static data members and base classes of literal types
1019 // We resolve DR1361 by ignoring the second bullet.
1020 bool isLiteral() const {
1021 return hasTrivialDestructor() &&
1022 (isAggregate() || hasConstexprNonCopyMoveConstructor()) &&
1023 !hasNonLiteralTypeFieldsOrBases();
1026 /// \brief If this record is an instantiation of a member class,
1027 /// retrieves the member class from which it was instantiated.
1029 /// This routine will return non-NULL for (non-templated) member
1030 /// classes of class templates. For example, given:
1033 /// template<typename T>
1039 /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl
1040 /// whose parent is the class template specialization X<int>. For
1041 /// this declaration, getInstantiatedFromMemberClass() will return
1042 /// the CXXRecordDecl X<T>::A. When a complete definition of
1043 /// X<int>::A is required, it will be instantiated from the
1044 /// declaration returned by getInstantiatedFromMemberClass().
1045 CXXRecordDecl *getInstantiatedFromMemberClass() const;
1047 /// \brief If this class is an instantiation of a member class of a
1048 /// class template specialization, retrieves the member specialization
1050 MemberSpecializationInfo *getMemberSpecializationInfo() const;
1052 /// \brief Specify that this record is an instantiation of the
1053 /// member class RD.
1054 void setInstantiationOfMemberClass(CXXRecordDecl *RD,
1055 TemplateSpecializationKind TSK);
1057 /// \brief Retrieves the class template that is described by this
1058 /// class declaration.
1060 /// Every class template is represented as a ClassTemplateDecl and a
1061 /// CXXRecordDecl. The former contains template properties (such as
1062 /// the template parameter lists) while the latter contains the
1063 /// actual description of the template's
1064 /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the
1065 /// CXXRecordDecl that from a ClassTemplateDecl, while
1066 /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from
1067 /// a CXXRecordDecl.
1068 ClassTemplateDecl *getDescribedClassTemplate() const {
1069 return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl*>();
1072 void setDescribedClassTemplate(ClassTemplateDecl *Template) {
1073 TemplateOrInstantiation = Template;
1076 /// \brief Determine whether this particular class is a specialization or
1077 /// instantiation of a class template or member class of a class template,
1078 /// and how it was instantiated or specialized.
1079 TemplateSpecializationKind getTemplateSpecializationKind() const;
1081 /// \brief Set the kind of specialization or template instantiation this is.
1082 void setTemplateSpecializationKind(TemplateSpecializationKind TSK);
1084 /// getDestructor - Returns the destructor decl for this class.
1085 CXXDestructorDecl *getDestructor() const;
1087 /// isLocalClass - If the class is a local class [class.local], returns
1088 /// the enclosing function declaration.
1089 const FunctionDecl *isLocalClass() const {
1090 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext()))
1091 return RD->isLocalClass();
1093 return dyn_cast<FunctionDecl>(getDeclContext());
1096 /// \brief Determine whether this class is derived from the class \p Base.
1098 /// This routine only determines whether this class is derived from \p Base,
1099 /// but does not account for factors that may make a Derived -> Base class
1100 /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1101 /// base class subobjects.
1103 /// \param Base the base class we are searching for.
1105 /// \returns true if this class is derived from Base, false otherwise.
1106 bool isDerivedFrom(const CXXRecordDecl *Base) const;
1108 /// \brief Determine whether this class is derived from the type \p Base.
1110 /// This routine only determines whether this class is derived from \p Base,
1111 /// but does not account for factors that may make a Derived -> Base class
1112 /// ill-formed, such as private/protected inheritance or multiple, ambiguous
1113 /// base class subobjects.
1115 /// \param Base the base class we are searching for.
1117 /// \param Paths will contain the paths taken from the current class to the
1118 /// given \p Base class.
1120 /// \returns true if this class is derived from Base, false otherwise.
1122 /// \todo add a separate paramaeter to configure IsDerivedFrom, rather than
1123 /// tangling input and output in \p Paths
1124 bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const;
1126 /// \brief Determine whether this class is virtually derived from
1127 /// the class \p Base.
1129 /// This routine only determines whether this class is virtually
1130 /// derived from \p Base, but does not account for factors that may
1131 /// make a Derived -> Base class ill-formed, such as
1132 /// private/protected inheritance or multiple, ambiguous base class
1135 /// \param Base the base class we are searching for.
1137 /// \returns true if this class is virtually derived from Base,
1138 /// false otherwise.
1139 bool isVirtuallyDerivedFrom(CXXRecordDecl *Base) const;
1141 /// \brief Determine whether this class is provably not derived from
1142 /// the type \p Base.
1143 bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const;
1145 /// \brief Function type used by forallBases() as a callback.
1147 /// \param Base the definition of the base class
1149 /// \returns true if this base matched the search criteria
1150 typedef bool ForallBasesCallback(const CXXRecordDecl *BaseDefinition,
1153 /// \brief Determines if the given callback holds for all the direct
1154 /// or indirect base classes of this type.
1156 /// The class itself does not count as a base class. This routine
1157 /// returns false if the class has non-computable base classes.
1159 /// \param AllowShortCircuit if false, forces the callback to be called
1160 /// for every base class, even if a dependent or non-matching base was
1162 bool forallBases(ForallBasesCallback *BaseMatches, void *UserData,
1163 bool AllowShortCircuit = true) const;
1165 /// \brief Function type used by lookupInBases() to determine whether a
1166 /// specific base class subobject matches the lookup criteria.
1168 /// \param Specifier the base-class specifier that describes the inheritance
1169 /// from the base class we are trying to match.
1171 /// \param Path the current path, from the most-derived class down to the
1172 /// base named by the \p Specifier.
1174 /// \param UserData a single pointer to user-specified data, provided to
1175 /// lookupInBases().
1177 /// \returns true if this base matched the search criteria, false otherwise.
1178 typedef bool BaseMatchesCallback(const CXXBaseSpecifier *Specifier,
1182 /// \brief Look for entities within the base classes of this C++ class,
1183 /// transitively searching all base class subobjects.
1185 /// This routine uses the callback function \p BaseMatches to find base
1186 /// classes meeting some search criteria, walking all base class subobjects
1187 /// and populating the given \p Paths structure with the paths through the
1188 /// inheritance hierarchy that resulted in a match. On a successful search,
1189 /// the \p Paths structure can be queried to retrieve the matching paths and
1190 /// to determine if there were any ambiguities.
1192 /// \param BaseMatches callback function used to determine whether a given
1193 /// base matches the user-defined search criteria.
1195 /// \param UserData user data pointer that will be provided to \p BaseMatches.
1197 /// \param Paths used to record the paths from this class to its base class
1198 /// subobjects that match the search criteria.
1200 /// \returns true if there exists any path from this class to a base class
1201 /// subobject that matches the search criteria.
1202 bool lookupInBases(BaseMatchesCallback *BaseMatches, void *UserData,
1203 CXXBasePaths &Paths) const;
1205 /// \brief Base-class lookup callback that determines whether the given
1206 /// base class specifier refers to a specific class declaration.
1208 /// This callback can be used with \c lookupInBases() to determine whether
1209 /// a given derived class has is a base class subobject of a particular type.
1210 /// The user data pointer should refer to the canonical CXXRecordDecl of the
1211 /// base class that we are searching for.
1212 static bool FindBaseClass(const CXXBaseSpecifier *Specifier,
1213 CXXBasePath &Path, void *BaseRecord);
1215 /// \brief Base-class lookup callback that determines whether the
1216 /// given base class specifier refers to a specific class
1217 /// declaration and describes virtual derivation.
1219 /// This callback can be used with \c lookupInBases() to determine
1220 /// whether a given derived class has is a virtual base class
1221 /// subobject of a particular type. The user data pointer should
1222 /// refer to the canonical CXXRecordDecl of the base class that we
1223 /// are searching for.
1224 static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier,
1225 CXXBasePath &Path, void *BaseRecord);
1227 /// \brief Base-class lookup callback that determines whether there exists
1228 /// a tag with the given name.
1230 /// This callback can be used with \c lookupInBases() to find tag members
1231 /// of the given name within a C++ class hierarchy. The user data pointer
1232 /// is an opaque \c DeclarationName pointer.
1233 static bool FindTagMember(const CXXBaseSpecifier *Specifier,
1234 CXXBasePath &Path, void *Name);
1236 /// \brief Base-class lookup callback that determines whether there exists
1237 /// a member with the given name.
1239 /// This callback can be used with \c lookupInBases() to find members
1240 /// of the given name within a C++ class hierarchy. The user data pointer
1241 /// is an opaque \c DeclarationName pointer.
1242 static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier,
1243 CXXBasePath &Path, void *Name);
1245 /// \brief Base-class lookup callback that determines whether there exists
1246 /// a member with the given name that can be used in a nested-name-specifier.
1248 /// This callback can be used with \c lookupInBases() to find membes of
1249 /// the given name within a C++ class hierarchy that can occur within
1250 /// nested-name-specifiers.
1251 static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier,
1255 /// \brief Retrieve the final overriders for each virtual member
1256 /// function in the class hierarchy where this class is the
1257 /// most-derived class in the class hierarchy.
1258 void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const;
1260 /// \brief Get the indirect primary bases for this class.
1261 void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const;
1263 /// viewInheritance - Renders and displays an inheritance diagram
1264 /// for this C++ class and all of its base classes (transitively) using
1266 void viewInheritance(ASTContext& Context) const;
1268 /// MergeAccess - Calculates the access of a decl that is reached
1270 static AccessSpecifier MergeAccess(AccessSpecifier PathAccess,
1271 AccessSpecifier DeclAccess) {
1272 assert(DeclAccess != AS_none);
1273 if (DeclAccess == AS_private) return AS_none;
1274 return (PathAccess > DeclAccess ? PathAccess : DeclAccess);
1277 /// \brief Indicates that the definition of this class is now complete.
1278 virtual void completeDefinition();
1280 /// \brief Indicates that the definition of this class is now complete,
1281 /// and provides a final overrider map to help determine
1283 /// \param FinalOverriders The final overrider map for this class, which can
1284 /// be provided as an optimization for abstract-class checking. If NULL,
1285 /// final overriders will be computed if they are needed to complete the
1287 void completeDefinition(CXXFinalOverriderMap *FinalOverriders);
1289 /// \brief Determine whether this class may end up being abstract, even though
1290 /// it is not yet known to be abstract.
1292 /// \returns true if this class is not known to be abstract but has any
1293 /// base classes that are abstract. In this case, \c completeDefinition()
1294 /// will need to compute final overriders to determine whether the class is
1295 /// actually abstract.
1296 bool mayBeAbstract() const;
1298 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1299 static bool classofKind(Kind K) {
1300 return K >= firstCXXRecord && K <= lastCXXRecord;
1302 static bool classof(const CXXRecordDecl *D) { return true; }
1303 static bool classof(const ClassTemplateSpecializationDecl *D) {
1307 friend class ASTDeclReader;
1308 friend class ASTDeclWriter;
1309 friend class ASTReader;
1310 friend class ASTWriter;
1313 /// CXXMethodDecl - Represents a static or instance method of a
1314 /// struct/union/class.
1315 class CXXMethodDecl : public FunctionDecl {
1317 CXXMethodDecl(Kind DK, CXXRecordDecl *RD, SourceLocation StartLoc,
1318 const DeclarationNameInfo &NameInfo,
1319 QualType T, TypeSourceInfo *TInfo,
1320 bool isStatic, StorageClass SCAsWritten, bool isInline,
1321 bool isConstexpr, SourceLocation EndLocation)
1322 : FunctionDecl(DK, RD, StartLoc, NameInfo, T, TInfo,
1323 (isStatic ? SC_Static : SC_None),
1324 SCAsWritten, isInline, isConstexpr) {
1325 if (EndLocation.isValid())
1326 setRangeEnd(EndLocation);
1330 static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD,
1331 SourceLocation StartLoc,
1332 const DeclarationNameInfo &NameInfo,
1333 QualType T, TypeSourceInfo *TInfo,
1335 StorageClass SCAsWritten,
1338 SourceLocation EndLocation);
1340 bool isStatic() const { return getStorageClass() == SC_Static; }
1341 bool isInstance() const { return !isStatic(); }
1343 bool isVirtual() const {
1345 cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl());
1347 if (CD->isVirtualAsWritten())
1350 return (CD->begin_overridden_methods() != CD->end_overridden_methods());
1353 /// \brief Determine whether this is a usual deallocation function
1354 /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded
1355 /// delete or delete[] operator with a particular signature.
1356 bool isUsualDeallocationFunction() const;
1358 /// \brief Determine whether this is a copy-assignment operator, regardless
1359 /// of whether it was declared implicitly or explicitly.
1360 bool isCopyAssignmentOperator() const;
1362 /// \brief Determine whether this is a move assignment operator.
1363 bool isMoveAssignmentOperator() const;
1365 const CXXMethodDecl *getCanonicalDecl() const {
1366 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl());
1368 CXXMethodDecl *getCanonicalDecl() {
1369 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl());
1372 /// isUserProvided - True if it is either an implicit constructor or
1373 /// if it was defaulted or deleted on first declaration.
1374 bool isUserProvided() const {
1375 return !(isDeleted() || getCanonicalDecl()->isDefaulted());
1379 void addOverriddenMethod(const CXXMethodDecl *MD);
1381 typedef const CXXMethodDecl ** method_iterator;
1383 method_iterator begin_overridden_methods() const;
1384 method_iterator end_overridden_methods() const;
1385 unsigned size_overridden_methods() const;
1387 /// getParent - Returns the parent of this method declaration, which
1388 /// is the class in which this method is defined.
1389 const CXXRecordDecl *getParent() const {
1390 return cast<CXXRecordDecl>(FunctionDecl::getParent());
1393 /// getParent - Returns the parent of this method declaration, which
1394 /// is the class in which this method is defined.
1395 CXXRecordDecl *getParent() {
1396 return const_cast<CXXRecordDecl *>(
1397 cast<CXXRecordDecl>(FunctionDecl::getParent()));
1400 /// getThisType - Returns the type of 'this' pointer.
1401 /// Should only be called for instance methods.
1402 QualType getThisType(ASTContext &C) const;
1404 unsigned getTypeQualifiers() const {
1405 return getType()->getAs<FunctionProtoType>()->getTypeQuals();
1408 /// \brief Retrieve the ref-qualifier associated with this method.
1410 /// In the following example, \c f() has an lvalue ref-qualifier, \c g()
1411 /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier.
1419 RefQualifierKind getRefQualifier() const {
1420 return getType()->getAs<FunctionProtoType>()->getRefQualifier();
1423 bool hasInlineBody() const;
1425 // Implement isa/cast/dyncast/etc.
1426 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1427 static bool classof(const CXXMethodDecl *D) { return true; }
1428 static bool classofKind(Kind K) {
1429 return K >= firstCXXMethod && K <= lastCXXMethod;
1433 /// CXXCtorInitializer - Represents a C++ base or member
1434 /// initializer, which is part of a constructor initializer that
1435 /// initializes one non-static member variable or one base class. For
1436 /// example, in the following, both 'A(a)' and 'f(3.14159)' are member
1441 /// class B : public A {
1444 /// B(A& a) : A(a), f(3.14159) { }
1447 class CXXCtorInitializer {
1448 /// \brief Either the base class name (stored as a TypeSourceInfo*), an normal
1449 /// field (FieldDecl), anonymous field (IndirectFieldDecl*), or target
1450 /// constructor (CXXConstructorDecl*) being initialized.
1451 llvm::PointerUnion4<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *,
1452 CXXConstructorDecl *>
1455 /// \brief The source location for the field name or, for a base initializer
1456 /// pack expansion, the location of the ellipsis. In the case of a delegating
1457 /// constructor, it will still include the type's source location as the
1458 /// Initializee points to the CXXConstructorDecl (to allow loop detection).
1459 SourceLocation MemberOrEllipsisLocation;
1461 /// \brief The argument used to initialize the base or member, which may
1462 /// end up constructing an object (when multiple arguments are involved).
1463 /// If 0, this is a field initializer, and the in-class member initializer
1467 /// LParenLoc - Location of the left paren of the ctor-initializer.
1468 SourceLocation LParenLoc;
1470 /// RParenLoc - Location of the right paren of the ctor-initializer.
1471 SourceLocation RParenLoc;
1473 /// IsVirtual - If the initializer is a base initializer, this keeps track
1474 /// of whether the base is virtual or not.
1477 /// IsWritten - Whether or not the initializer is explicitly written
1481 /// SourceOrderOrNumArrayIndices - If IsWritten is true, then this
1482 /// number keeps track of the textual order of this initializer in the
1483 /// original sources, counting from 0; otherwise, if IsWritten is false,
1484 /// it stores the number of array index variables stored after this
1485 /// object in memory.
1486 unsigned SourceOrderOrNumArrayIndices : 14;
1488 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member,
1489 SourceLocation MemberLoc, SourceLocation L, Expr *Init,
1490 SourceLocation R, VarDecl **Indices, unsigned NumIndices);
1493 /// CXXCtorInitializer - Creates a new base-class initializer.
1495 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual,
1496 SourceLocation L, Expr *Init, SourceLocation R,
1497 SourceLocation EllipsisLoc);
1499 /// CXXCtorInitializer - Creates a new member initializer.
1501 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member,
1502 SourceLocation MemberLoc, SourceLocation L, Expr *Init,
1505 /// CXXCtorInitializer - Creates a new anonymous field initializer.
1507 CXXCtorInitializer(ASTContext &Context, IndirectFieldDecl *Member,
1508 SourceLocation MemberLoc, SourceLocation L, Expr *Init,
1511 /// CXXCtorInitializer - Creates a new delegating Initializer.
1513 CXXCtorInitializer(ASTContext &Context, SourceLocation D, SourceLocation L,
1514 CXXConstructorDecl *Target, Expr *Init, SourceLocation R);
1516 /// \brief Creates a new member initializer that optionally contains
1517 /// array indices used to describe an elementwise initialization.
1518 static CXXCtorInitializer *Create(ASTContext &Context, FieldDecl *Member,
1519 SourceLocation MemberLoc, SourceLocation L,
1520 Expr *Init, SourceLocation R,
1521 VarDecl **Indices, unsigned NumIndices);
1523 /// isBaseInitializer - Returns true when this initializer is
1524 /// initializing a base class.
1525 bool isBaseInitializer() const { return Initializee.is<TypeSourceInfo*>(); }
1527 /// isMemberInitializer - Returns true when this initializer is
1528 /// initializing a non-static data member.
1529 bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); }
1531 bool isAnyMemberInitializer() const {
1532 return isMemberInitializer() || isIndirectMemberInitializer();
1535 bool isIndirectMemberInitializer() const {
1536 return Initializee.is<IndirectFieldDecl*>();
1539 /// isInClassMemberInitializer - Returns true when this initializer is an
1540 /// implicit ctor initializer generated for a field with an initializer
1541 /// defined on the member declaration.
1542 bool isInClassMemberInitializer() const {
1546 /// isDelegatingInitializer - Returns true when this initializer is creating
1547 /// a delegating constructor.
1548 bool isDelegatingInitializer() const {
1549 return Initializee.is<CXXConstructorDecl *>();
1552 /// \brief Determine whether this initializer is a pack expansion.
1553 bool isPackExpansion() const {
1554 return isBaseInitializer() && MemberOrEllipsisLocation.isValid();
1557 // \brief For a pack expansion, returns the location of the ellipsis.
1558 SourceLocation getEllipsisLoc() const {
1559 assert(isPackExpansion() && "Initializer is not a pack expansion");
1560 return MemberOrEllipsisLocation;
1563 /// If this is a base class initializer, returns the type of the
1564 /// base class with location information. Otherwise, returns an NULL
1566 TypeLoc getBaseClassLoc() const;
1568 /// If this is a base class initializer, returns the type of the base class.
1569 /// Otherwise, returns NULL.
1570 const Type *getBaseClass() const;
1572 /// Returns whether the base is virtual or not.
1573 bool isBaseVirtual() const {
1574 assert(isBaseInitializer() && "Must call this on base initializer!");
1579 /// \brief Returns the declarator information for a base class initializer.
1580 TypeSourceInfo *getBaseClassInfo() const {
1581 return Initializee.dyn_cast<TypeSourceInfo *>();
1584 /// getMember - If this is a member initializer, returns the
1585 /// declaration of the non-static data member being
1586 /// initialized. Otherwise, returns NULL.
1587 FieldDecl *getMember() const {
1588 if (isMemberInitializer())
1589 return Initializee.get<FieldDecl*>();
1593 FieldDecl *getAnyMember() const {
1594 if (isMemberInitializer())
1595 return Initializee.get<FieldDecl*>();
1596 else if (isIndirectMemberInitializer())
1597 return Initializee.get<IndirectFieldDecl*>()->getAnonField();
1602 IndirectFieldDecl *getIndirectMember() const {
1603 if (isIndirectMemberInitializer())
1604 return Initializee.get<IndirectFieldDecl*>();
1609 CXXConstructorDecl *getTargetConstructor() const {
1610 if (isDelegatingInitializer())
1611 return Initializee.get<CXXConstructorDecl*>();
1616 SourceLocation getMemberLocation() const {
1617 return MemberOrEllipsisLocation;
1620 /// \brief Determine the source location of the initializer.
1621 SourceLocation getSourceLocation() const;
1623 /// \brief Determine the source range covering the entire initializer.
1624 SourceRange getSourceRange() const;
1626 /// isWritten - Returns true if this initializer is explicitly written
1627 /// in the source code.
1628 bool isWritten() const { return IsWritten; }
1630 /// \brief Return the source position of the initializer, counting from 0.
1631 /// If the initializer was implicit, -1 is returned.
1632 int getSourceOrder() const {
1633 return IsWritten ? static_cast<int>(SourceOrderOrNumArrayIndices) : -1;
1636 /// \brief Set the source order of this initializer. This method can only
1637 /// be called once for each initializer; it cannot be called on an
1638 /// initializer having a positive number of (implicit) array indices.
1639 void setSourceOrder(int pos) {
1640 assert(!IsWritten &&
1641 "calling twice setSourceOrder() on the same initializer");
1642 assert(SourceOrderOrNumArrayIndices == 0 &&
1643 "setSourceOrder() used when there are implicit array indices");
1645 "setSourceOrder() used to make an initializer implicit");
1647 SourceOrderOrNumArrayIndices = static_cast<unsigned>(pos);
1650 SourceLocation getLParenLoc() const { return LParenLoc; }
1651 SourceLocation getRParenLoc() const { return RParenLoc; }
1653 /// \brief Determine the number of implicit array indices used while
1654 /// described an array member initialization.
1655 unsigned getNumArrayIndices() const {
1656 return IsWritten ? 0 : SourceOrderOrNumArrayIndices;
1659 /// \brief Retrieve a particular array index variable used to
1660 /// describe an array member initialization.
1661 VarDecl *getArrayIndex(unsigned I) {
1662 assert(I < getNumArrayIndices() && "Out of bounds member array index");
1663 return reinterpret_cast<VarDecl **>(this + 1)[I];
1665 const VarDecl *getArrayIndex(unsigned I) const {
1666 assert(I < getNumArrayIndices() && "Out of bounds member array index");
1667 return reinterpret_cast<const VarDecl * const *>(this + 1)[I];
1669 void setArrayIndex(unsigned I, VarDecl *Index) {
1670 assert(I < getNumArrayIndices() && "Out of bounds member array index");
1671 reinterpret_cast<VarDecl **>(this + 1)[I] = Index;
1674 /// \brief Get the initializer. This is 0 if this is an in-class initializer
1675 /// for a non-static data member which has not yet been parsed.
1676 Expr *getInit() const {
1678 return getAnyMember()->getInClassInitializer();
1680 return static_cast<Expr*>(Init);
1684 /// CXXConstructorDecl - Represents a C++ constructor within a
1685 /// class. For example:
1690 /// explicit X(int); // represented by a CXXConstructorDecl.
1693 class CXXConstructorDecl : public CXXMethodDecl {
1694 /// IsExplicitSpecified - Whether this constructor declaration has the
1695 /// 'explicit' keyword specified.
1696 bool IsExplicitSpecified : 1;
1698 /// ImplicitlyDefined - Whether this constructor was implicitly
1699 /// defined by the compiler. When false, the constructor was defined
1700 /// by the user. In C++03, this flag will have the same value as
1701 /// Implicit. In C++0x, however, a constructor that is
1702 /// explicitly defaulted (i.e., defined with " = default") will have
1703 /// @c !Implicit && ImplicitlyDefined.
1704 bool ImplicitlyDefined : 1;
1706 /// Support for base and member initializers.
1707 /// CtorInitializers - The arguments used to initialize the base
1709 CXXCtorInitializer **CtorInitializers;
1710 unsigned NumCtorInitializers;
1712 CXXConstructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc,
1713 const DeclarationNameInfo &NameInfo,
1714 QualType T, TypeSourceInfo *TInfo,
1715 bool isExplicitSpecified, bool isInline,
1716 bool isImplicitlyDeclared, bool isConstexpr)
1717 : CXXMethodDecl(CXXConstructor, RD, StartLoc, NameInfo, T, TInfo, false,
1718 SC_None, isInline, isConstexpr, SourceLocation()),
1719 IsExplicitSpecified(isExplicitSpecified), ImplicitlyDefined(false),
1720 CtorInitializers(0), NumCtorInitializers(0) {
1721 setImplicit(isImplicitlyDeclared);
1725 static CXXConstructorDecl *Create(ASTContext &C, EmptyShell Empty);
1726 static CXXConstructorDecl *Create(ASTContext &C, CXXRecordDecl *RD,
1727 SourceLocation StartLoc,
1728 const DeclarationNameInfo &NameInfo,
1729 QualType T, TypeSourceInfo *TInfo,
1731 bool isInline, bool isImplicitlyDeclared,
1734 /// isExplicitSpecified - Whether this constructor declaration has the
1735 /// 'explicit' keyword specified.
1736 bool isExplicitSpecified() const { return IsExplicitSpecified; }
1738 /// isExplicit - Whether this constructor was marked "explicit" or not.
1739 bool isExplicit() const {
1740 return cast<CXXConstructorDecl>(getFirstDeclaration())
1741 ->isExplicitSpecified();
1744 /// isImplicitlyDefined - Whether this constructor was implicitly
1745 /// defined. If false, then this constructor was defined by the
1746 /// user. This operation can only be invoked if the constructor has
1747 /// already been defined.
1748 bool isImplicitlyDefined() const {
1749 assert(isThisDeclarationADefinition() &&
1750 "Can only get the implicit-definition flag once the "
1751 "constructor has been defined");
1752 return ImplicitlyDefined;
1755 /// setImplicitlyDefined - Set whether this constructor was
1756 /// implicitly defined or not.
1757 void setImplicitlyDefined(bool ID) {
1758 assert(isThisDeclarationADefinition() &&
1759 "Can only set the implicit-definition flag once the constructor "
1760 "has been defined");
1761 ImplicitlyDefined = ID;
1764 /// init_iterator - Iterates through the member/base initializer list.
1765 typedef CXXCtorInitializer **init_iterator;
1767 /// init_const_iterator - Iterates through the memberbase initializer list.
1768 typedef CXXCtorInitializer * const * init_const_iterator;
1770 /// init_begin() - Retrieve an iterator to the first initializer.
1771 init_iterator init_begin() { return CtorInitializers; }
1772 /// begin() - Retrieve an iterator to the first initializer.
1773 init_const_iterator init_begin() const { return CtorInitializers; }
1775 /// init_end() - Retrieve an iterator past the last initializer.
1776 init_iterator init_end() {
1777 return CtorInitializers + NumCtorInitializers;
1779 /// end() - Retrieve an iterator past the last initializer.
1780 init_const_iterator init_end() const {
1781 return CtorInitializers + NumCtorInitializers;
1784 typedef std::reverse_iterator<init_iterator> init_reverse_iterator;
1785 typedef std::reverse_iterator<init_const_iterator> init_const_reverse_iterator;
1787 init_reverse_iterator init_rbegin() {
1788 return init_reverse_iterator(init_end());
1790 init_const_reverse_iterator init_rbegin() const {
1791 return init_const_reverse_iterator(init_end());
1794 init_reverse_iterator init_rend() {
1795 return init_reverse_iterator(init_begin());
1797 init_const_reverse_iterator init_rend() const {
1798 return init_const_reverse_iterator(init_begin());
1801 /// getNumArgs - Determine the number of arguments used to
1802 /// initialize the member or base.
1803 unsigned getNumCtorInitializers() const {
1804 return NumCtorInitializers;
1807 void setNumCtorInitializers(unsigned numCtorInitializers) {
1808 NumCtorInitializers = numCtorInitializers;
1811 void setCtorInitializers(CXXCtorInitializer ** initializers) {
1812 CtorInitializers = initializers;
1815 /// isDelegatingConstructor - Whether this constructor is a
1816 /// delegating constructor
1817 bool isDelegatingConstructor() const {
1818 return (getNumCtorInitializers() == 1) &&
1819 CtorInitializers[0]->isDelegatingInitializer();
1822 /// getTargetConstructor - When this constructor delegates to
1823 /// another, retrieve the target
1824 CXXConstructorDecl *getTargetConstructor() const {
1825 assert(isDelegatingConstructor() &&
1826 "A non-delegating constructor has no target");
1827 return CtorInitializers[0]->getTargetConstructor();
1830 /// isDefaultConstructor - Whether this constructor is a default
1831 /// constructor (C++ [class.ctor]p5), which can be used to
1832 /// default-initialize a class of this type.
1833 bool isDefaultConstructor() const;
1835 /// isCopyConstructor - Whether this constructor is a copy
1836 /// constructor (C++ [class.copy]p2, which can be used to copy the
1837 /// class. @p TypeQuals will be set to the qualifiers on the
1838 /// argument type. For example, @p TypeQuals would be set to @c
1839 /// QualType::Const for the following copy constructor:
1847 bool isCopyConstructor(unsigned &TypeQuals) const;
1849 /// isCopyConstructor - Whether this constructor is a copy
1850 /// constructor (C++ [class.copy]p2, which can be used to copy the
1852 bool isCopyConstructor() const {
1853 unsigned TypeQuals = 0;
1854 return isCopyConstructor(TypeQuals);
1857 /// \brief Determine whether this constructor is a move constructor
1858 /// (C++0x [class.copy]p3), which can be used to move values of the class.
1860 /// \param TypeQuals If this constructor is a move constructor, will be set
1861 /// to the type qualifiers on the referent of the first parameter's type.
1862 bool isMoveConstructor(unsigned &TypeQuals) const;
1864 /// \brief Determine whether this constructor is a move constructor
1865 /// (C++0x [class.copy]p3), which can be used to move values of the class.
1866 bool isMoveConstructor() const {
1867 unsigned TypeQuals = 0;
1868 return isMoveConstructor(TypeQuals);
1871 /// \brief Determine whether this is a copy or move constructor.
1873 /// \param TypeQuals Will be set to the type qualifiers on the reference
1874 /// parameter, if in fact this is a copy or move constructor.
1875 bool isCopyOrMoveConstructor(unsigned &TypeQuals) const;
1877 /// \brief Determine whether this a copy or move constructor.
1878 bool isCopyOrMoveConstructor() const {
1880 return isCopyOrMoveConstructor(Quals);
1883 /// isConvertingConstructor - Whether this constructor is a
1884 /// converting constructor (C++ [class.conv.ctor]), which can be
1885 /// used for user-defined conversions.
1886 bool isConvertingConstructor(bool AllowExplicit) const;
1888 /// \brief Determine whether this is a member template specialization that
1889 /// would copy the object to itself. Such constructors are never used to copy
1891 bool isSpecializationCopyingObject() const;
1893 /// \brief Get the constructor that this inheriting constructor is based on.
1894 const CXXConstructorDecl *getInheritedConstructor() const;
1896 /// \brief Set the constructor that this inheriting constructor is based on.
1897 void setInheritedConstructor(const CXXConstructorDecl *BaseCtor);
1899 const CXXConstructorDecl *getCanonicalDecl() const {
1900 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl());
1902 CXXConstructorDecl *getCanonicalDecl() {
1903 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl());
1906 // Implement isa/cast/dyncast/etc.
1907 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1908 static bool classof(const CXXConstructorDecl *D) { return true; }
1909 static bool classofKind(Kind K) { return K == CXXConstructor; }
1911 friend class ASTDeclReader;
1912 friend class ASTDeclWriter;
1915 /// CXXDestructorDecl - Represents a C++ destructor within a
1916 /// class. For example:
1921 /// ~X(); // represented by a CXXDestructorDecl.
1924 class CXXDestructorDecl : public CXXMethodDecl {
1925 /// ImplicitlyDefined - Whether this destructor was implicitly
1926 /// defined by the compiler. When false, the destructor was defined
1927 /// by the user. In C++03, this flag will have the same value as
1928 /// Implicit. In C++0x, however, a destructor that is
1929 /// explicitly defaulted (i.e., defined with " = default") will have
1930 /// @c !Implicit && ImplicitlyDefined.
1931 bool ImplicitlyDefined : 1;
1933 FunctionDecl *OperatorDelete;
1935 CXXDestructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc,
1936 const DeclarationNameInfo &NameInfo,
1937 QualType T, TypeSourceInfo *TInfo,
1938 bool isInline, bool isImplicitlyDeclared)
1939 : CXXMethodDecl(CXXDestructor, RD, StartLoc, NameInfo, T, TInfo, false,
1940 SC_None, isInline, /*isConstexpr=*/false, SourceLocation()),
1941 ImplicitlyDefined(false), OperatorDelete(0) {
1942 setImplicit(isImplicitlyDeclared);
1946 static CXXDestructorDecl *Create(ASTContext& C, EmptyShell Empty);
1947 static CXXDestructorDecl *Create(ASTContext &C, CXXRecordDecl *RD,
1948 SourceLocation StartLoc,
1949 const DeclarationNameInfo &NameInfo,
1950 QualType T, TypeSourceInfo* TInfo,
1952 bool isImplicitlyDeclared);
1954 /// isImplicitlyDefined - Whether this destructor was implicitly
1955 /// defined. If false, then this destructor was defined by the
1956 /// user. This operation can only be invoked if the destructor has
1957 /// already been defined.
1958 bool isImplicitlyDefined() const {
1959 assert(isThisDeclarationADefinition() &&
1960 "Can only get the implicit-definition flag once the destructor has been defined");
1961 return ImplicitlyDefined;
1964 /// setImplicitlyDefined - Set whether this destructor was
1965 /// implicitly defined or not.
1966 void setImplicitlyDefined(bool ID) {
1967 assert(isThisDeclarationADefinition() &&
1968 "Can only set the implicit-definition flag once the destructor has been defined");
1969 ImplicitlyDefined = ID;
1972 void setOperatorDelete(FunctionDecl *OD) { OperatorDelete = OD; }
1973 const FunctionDecl *getOperatorDelete() const { return OperatorDelete; }
1975 // Implement isa/cast/dyncast/etc.
1976 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
1977 static bool classof(const CXXDestructorDecl *D) { return true; }
1978 static bool classofKind(Kind K) { return K == CXXDestructor; }
1980 friend class ASTDeclReader;
1981 friend class ASTDeclWriter;
1984 /// CXXConversionDecl - Represents a C++ conversion function within a
1985 /// class. For example:
1990 /// operator bool();
1993 class CXXConversionDecl : public CXXMethodDecl {
1994 /// IsExplicitSpecified - Whether this conversion function declaration is
1995 /// marked "explicit", meaning that it can only be applied when the user
1996 /// explicitly wrote a cast. This is a C++0x feature.
1997 bool IsExplicitSpecified : 1;
1999 CXXConversionDecl(CXXRecordDecl *RD, SourceLocation StartLoc,
2000 const DeclarationNameInfo &NameInfo,
2001 QualType T, TypeSourceInfo *TInfo,
2002 bool isInline, bool isExplicitSpecified,
2003 bool isConstexpr, SourceLocation EndLocation)
2004 : CXXMethodDecl(CXXConversion, RD, StartLoc, NameInfo, T, TInfo, false,
2005 SC_None, isInline, isConstexpr, EndLocation),
2006 IsExplicitSpecified(isExplicitSpecified) { }
2009 static CXXConversionDecl *Create(ASTContext &C, EmptyShell Empty);
2010 static CXXConversionDecl *Create(ASTContext &C, CXXRecordDecl *RD,
2011 SourceLocation StartLoc,
2012 const DeclarationNameInfo &NameInfo,
2013 QualType T, TypeSourceInfo *TInfo,
2014 bool isInline, bool isExplicit,
2016 SourceLocation EndLocation);
2018 /// IsExplicitSpecified - Whether this conversion function declaration is
2019 /// marked "explicit", meaning that it can only be applied when the user
2020 /// explicitly wrote a cast. This is a C++0x feature.
2021 bool isExplicitSpecified() const { return IsExplicitSpecified; }
2023 /// isExplicit - Whether this is an explicit conversion operator
2024 /// (C++0x only). Explicit conversion operators are only considered
2025 /// when the user has explicitly written a cast.
2026 bool isExplicit() const {
2027 return cast<CXXConversionDecl>(getFirstDeclaration())
2028 ->isExplicitSpecified();
2031 /// getConversionType - Returns the type that this conversion
2032 /// function is converting to.
2033 QualType getConversionType() const {
2034 return getType()->getAs<FunctionType>()->getResultType();
2037 // Implement isa/cast/dyncast/etc.
2038 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2039 static bool classof(const CXXConversionDecl *D) { return true; }
2040 static bool classofKind(Kind K) { return K == CXXConversion; }
2042 friend class ASTDeclReader;
2043 friend class ASTDeclWriter;
2046 /// LinkageSpecDecl - This represents a linkage specification. For example:
2047 /// extern "C" void foo();
2049 class LinkageSpecDecl : public Decl, public DeclContext {
2051 /// LanguageIDs - Used to represent the language in a linkage
2052 /// specification. The values are part of the serialization abi for
2053 /// ASTs and cannot be changed without altering that abi. To help
2054 /// ensure a stable abi for this, we choose the DW_LANG_ encodings
2055 /// from the dwarf standard.
2057 lang_c = /* DW_LANG_C */ 0x0002,
2058 lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004
2061 /// Language - The language for this linkage specification.
2062 LanguageIDs Language;
2063 /// ExternLoc - The source location for the extern keyword.
2064 SourceLocation ExternLoc;
2065 /// RBraceLoc - The source location for the right brace (if valid).
2066 SourceLocation RBraceLoc;
2068 LinkageSpecDecl(DeclContext *DC, SourceLocation ExternLoc,
2069 SourceLocation LangLoc, LanguageIDs lang,
2070 SourceLocation RBLoc)
2071 : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec),
2072 Language(lang), ExternLoc(ExternLoc), RBraceLoc(RBLoc) { }
2075 static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC,
2076 SourceLocation ExternLoc,
2077 SourceLocation LangLoc, LanguageIDs Lang,
2078 SourceLocation RBraceLoc = SourceLocation());
2080 /// \brief Return the language specified by this linkage specification.
2081 LanguageIDs getLanguage() const { return Language; }
2082 /// \brief Set the language specified by this linkage specification.
2083 void setLanguage(LanguageIDs L) { Language = L; }
2085 /// \brief Determines whether this linkage specification had braces in
2086 /// its syntactic form.
2087 bool hasBraces() const { return RBraceLoc.isValid(); }
2089 SourceLocation getExternLoc() const { return ExternLoc; }
2090 SourceLocation getRBraceLoc() const { return RBraceLoc; }
2091 void setExternLoc(SourceLocation L) { ExternLoc = L; }
2092 void setRBraceLoc(SourceLocation L) { RBraceLoc = L; }
2094 SourceLocation getLocEnd() const {
2096 return getRBraceLoc();
2097 // No braces: get the end location of the (only) declaration in context
2099 return decls_empty() ? getLocation() : decls_begin()->getLocEnd();
2102 SourceRange getSourceRange() const {
2103 return SourceRange(ExternLoc, getLocEnd());
2106 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2107 static bool classof(const LinkageSpecDecl *D) { return true; }
2108 static bool classofKind(Kind K) { return K == LinkageSpec; }
2109 static DeclContext *castToDeclContext(const LinkageSpecDecl *D) {
2110 return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D));
2112 static LinkageSpecDecl *castFromDeclContext(const DeclContext *DC) {
2113 return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC));
2117 /// UsingDirectiveDecl - Represents C++ using-directive. For example:
2119 /// using namespace std;
2121 // NB: UsingDirectiveDecl should be Decl not NamedDecl, but we provide
2122 // artificial name, for all using-directives in order to store
2123 // them in DeclContext effectively.
2124 class UsingDirectiveDecl : public NamedDecl {
2125 /// \brief The location of the "using" keyword.
2126 SourceLocation UsingLoc;
2128 /// SourceLocation - Location of 'namespace' token.
2129 SourceLocation NamespaceLoc;
2131 /// \brief The nested-name-specifier that precedes the namespace.
2132 NestedNameSpecifierLoc QualifierLoc;
2134 /// NominatedNamespace - Namespace nominated by using-directive.
2135 NamedDecl *NominatedNamespace;
2137 /// Enclosing context containing both using-directive and nominated
2139 DeclContext *CommonAncestor;
2141 /// getUsingDirectiveName - Returns special DeclarationName used by
2142 /// using-directives. This is only used by DeclContext for storing
2143 /// UsingDirectiveDecls in its lookup structure.
2144 static DeclarationName getName() {
2145 return DeclarationName::getUsingDirectiveName();
2148 UsingDirectiveDecl(DeclContext *DC, SourceLocation UsingLoc,
2149 SourceLocation NamespcLoc,
2150 NestedNameSpecifierLoc QualifierLoc,
2151 SourceLocation IdentLoc,
2152 NamedDecl *Nominated,
2153 DeclContext *CommonAncestor)
2154 : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc),
2155 NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc),
2156 NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) { }
2159 /// \brief Retrieve the nested-name-specifier that qualifies the
2160 /// name of the namespace, with source-location information.
2161 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2163 /// \brief Retrieve the nested-name-specifier that qualifies the
2164 /// name of the namespace.
2165 NestedNameSpecifier *getQualifier() const {
2166 return QualifierLoc.getNestedNameSpecifier();
2169 NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; }
2170 const NamedDecl *getNominatedNamespaceAsWritten() const {
2171 return NominatedNamespace;
2174 /// getNominatedNamespace - Returns namespace nominated by using-directive.
2175 NamespaceDecl *getNominatedNamespace();
2177 const NamespaceDecl *getNominatedNamespace() const {
2178 return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace();
2181 /// \brief Returns the common ancestor context of this using-directive and
2182 /// its nominated namespace.
2183 DeclContext *getCommonAncestor() { return CommonAncestor; }
2184 const DeclContext *getCommonAncestor() const { return CommonAncestor; }
2186 /// \brief Return the location of the "using" keyword.
2187 SourceLocation getUsingLoc() const { return UsingLoc; }
2189 // FIXME: Could omit 'Key' in name.
2190 /// getNamespaceKeyLocation - Returns location of namespace keyword.
2191 SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; }
2193 /// getIdentLocation - Returns location of identifier.
2194 SourceLocation getIdentLocation() const { return getLocation(); }
2196 static UsingDirectiveDecl *Create(ASTContext &C, DeclContext *DC,
2197 SourceLocation UsingLoc,
2198 SourceLocation NamespaceLoc,
2199 NestedNameSpecifierLoc QualifierLoc,
2200 SourceLocation IdentLoc,
2201 NamedDecl *Nominated,
2202 DeclContext *CommonAncestor);
2204 SourceRange getSourceRange() const {
2205 return SourceRange(UsingLoc, getLocation());
2208 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2209 static bool classof(const UsingDirectiveDecl *D) { return true; }
2210 static bool classofKind(Kind K) { return K == UsingDirective; }
2212 // Friend for getUsingDirectiveName.
2213 friend class DeclContext;
2215 friend class ASTDeclReader;
2218 /// NamespaceAliasDecl - Represents a C++ namespace alias. For example:
2221 /// namespace Foo = Bar;
2223 class NamespaceAliasDecl : public NamedDecl {
2224 /// \brief The location of the "namespace" keyword.
2225 SourceLocation NamespaceLoc;
2227 /// IdentLoc - Location of namespace identifier. Accessed by TargetNameLoc.
2228 SourceLocation IdentLoc;
2230 /// \brief The nested-name-specifier that precedes the namespace.
2231 NestedNameSpecifierLoc QualifierLoc;
2233 /// Namespace - The Decl that this alias points to. Can either be a
2234 /// NamespaceDecl or a NamespaceAliasDecl.
2235 NamedDecl *Namespace;
2237 NamespaceAliasDecl(DeclContext *DC, SourceLocation NamespaceLoc,
2238 SourceLocation AliasLoc, IdentifierInfo *Alias,
2239 NestedNameSpecifierLoc QualifierLoc,
2240 SourceLocation IdentLoc, NamedDecl *Namespace)
2241 : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias),
2242 NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc),
2243 QualifierLoc(QualifierLoc), Namespace(Namespace) { }
2245 friend class ASTDeclReader;
2248 /// \brief Retrieve the nested-name-specifier that qualifies the
2249 /// name of the namespace, with source-location information.
2250 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2252 /// \brief Retrieve the nested-name-specifier that qualifies the
2253 /// name of the namespace.
2254 NestedNameSpecifier *getQualifier() const {
2255 return QualifierLoc.getNestedNameSpecifier();
2258 /// \brief Retrieve the namespace declaration aliased by this directive.
2259 NamespaceDecl *getNamespace() {
2260 if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace))
2261 return AD->getNamespace();
2263 return cast<NamespaceDecl>(Namespace);
2266 const NamespaceDecl *getNamespace() const {
2267 return const_cast<NamespaceAliasDecl*>(this)->getNamespace();
2270 /// Returns the location of the alias name, i.e. 'foo' in
2271 /// "namespace foo = ns::bar;".
2272 SourceLocation getAliasLoc() const { return getLocation(); }
2274 /// Returns the location of the 'namespace' keyword.
2275 SourceLocation getNamespaceLoc() const { return NamespaceLoc; }
2277 /// Returns the location of the identifier in the named namespace.
2278 SourceLocation getTargetNameLoc() const { return IdentLoc; }
2280 /// \brief Retrieve the namespace that this alias refers to, which
2281 /// may either be a NamespaceDecl or a NamespaceAliasDecl.
2282 NamedDecl *getAliasedNamespace() const { return Namespace; }
2284 static NamespaceAliasDecl *Create(ASTContext &C, DeclContext *DC,
2285 SourceLocation NamespaceLoc,
2286 SourceLocation AliasLoc,
2287 IdentifierInfo *Alias,
2288 NestedNameSpecifierLoc QualifierLoc,
2289 SourceLocation IdentLoc,
2290 NamedDecl *Namespace);
2292 virtual SourceRange getSourceRange() const {
2293 return SourceRange(NamespaceLoc, IdentLoc);
2296 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2297 static bool classof(const NamespaceAliasDecl *D) { return true; }
2298 static bool classofKind(Kind K) { return K == NamespaceAlias; }
2301 /// UsingShadowDecl - Represents a shadow declaration introduced into
2302 /// a scope by a (resolved) using declaration. For example,
2308 /// using A::foo(); // <- a UsingDecl
2309 /// // Also creates a UsingShadowDecl for A::foo in B
2312 class UsingShadowDecl : public NamedDecl {
2313 /// The referenced declaration.
2314 NamedDecl *Underlying;
2316 /// \brief The using declaration which introduced this decl or the next using
2317 /// shadow declaration contained in the aforementioned using declaration.
2318 NamedDecl *UsingOrNextShadow;
2319 friend class UsingDecl;
2321 UsingShadowDecl(DeclContext *DC, SourceLocation Loc, UsingDecl *Using,
2323 : NamedDecl(UsingShadow, DC, Loc, DeclarationName()),
2325 UsingOrNextShadow(reinterpret_cast<NamedDecl *>(Using)) {
2327 setDeclName(Target->getDeclName());
2328 IdentifierNamespace = Target->getIdentifierNamespace();
2334 static UsingShadowDecl *Create(ASTContext &C, DeclContext *DC,
2335 SourceLocation Loc, UsingDecl *Using,
2336 NamedDecl *Target) {
2337 return new (C) UsingShadowDecl(DC, Loc, Using, Target);
2340 /// \brief Gets the underlying declaration which has been brought into the
2342 NamedDecl *getTargetDecl() const { return Underlying; }
2344 /// \brief Sets the underlying declaration which has been brought into the
2346 void setTargetDecl(NamedDecl* ND) {
2347 assert(ND && "Target decl is null!");
2349 IdentifierNamespace = ND->getIdentifierNamespace();
2352 /// \brief Gets the using declaration to which this declaration is tied.
2353 UsingDecl *getUsingDecl() const;
2355 /// \brief The next using shadow declaration contained in the shadow decl
2356 /// chain of the using declaration which introduced this decl.
2357 UsingShadowDecl *getNextUsingShadowDecl() const {
2358 return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow);
2361 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2362 static bool classof(const UsingShadowDecl *D) { return true; }
2363 static bool classofKind(Kind K) { return K == Decl::UsingShadow; }
2365 friend class ASTDeclReader;
2366 friend class ASTDeclWriter;
2369 /// UsingDecl - Represents a C++ using-declaration. For example:
2370 /// using someNameSpace::someIdentifier;
2371 class UsingDecl : public NamedDecl {
2372 /// \brief The source location of the "using" location itself.
2373 SourceLocation UsingLocation;
2375 /// \brief The nested-name-specifier that precedes the name.
2376 NestedNameSpecifierLoc QualifierLoc;
2378 /// DNLoc - Provides source/type location info for the
2379 /// declaration name embedded in the ValueDecl base class.
2380 DeclarationNameLoc DNLoc;
2382 /// \brief The first shadow declaration of the shadow decl chain associated
2383 /// with this using declaration.
2384 UsingShadowDecl *FirstUsingShadow;
2386 // \brief Has 'typename' keyword.
2389 UsingDecl(DeclContext *DC, SourceLocation UL,
2390 NestedNameSpecifierLoc QualifierLoc,
2391 const DeclarationNameInfo &NameInfo, bool IsTypeNameArg)
2392 : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()),
2393 UsingLocation(UL), QualifierLoc(QualifierLoc),
2394 DNLoc(NameInfo.getInfo()), FirstUsingShadow(0),IsTypeName(IsTypeNameArg) {
2398 /// \brief Returns the source location of the "using" keyword.
2399 SourceLocation getUsingLocation() const { return UsingLocation; }
2401 /// \brief Set the source location of the 'using' keyword.
2402 void setUsingLocation(SourceLocation L) { UsingLocation = L; }
2404 /// \brief Retrieve the nested-name-specifier that qualifies the name,
2405 /// with source-location information.
2406 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2408 /// \brief Retrieve the nested-name-specifier that qualifies the name.
2409 NestedNameSpecifier *getQualifier() const {
2410 return QualifierLoc.getNestedNameSpecifier();
2413 DeclarationNameInfo getNameInfo() const {
2414 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
2417 /// \brief Return true if the using declaration has 'typename'.
2418 bool isTypeName() const { return IsTypeName; }
2420 /// \brief Sets whether the using declaration has 'typename'.
2421 void setTypeName(bool TN) { IsTypeName = TN; }
2423 /// \brief Iterates through the using shadow declarations assosiated with
2424 /// this using declaration.
2425 class shadow_iterator {
2426 /// \brief The current using shadow declaration.
2427 UsingShadowDecl *Current;
2430 typedef UsingShadowDecl* value_type;
2431 typedef UsingShadowDecl* reference;
2432 typedef UsingShadowDecl* pointer;
2433 typedef std::forward_iterator_tag iterator_category;
2434 typedef std::ptrdiff_t difference_type;
2436 shadow_iterator() : Current(0) { }
2437 explicit shadow_iterator(UsingShadowDecl *C) : Current(C) { }
2439 reference operator*() const { return Current; }
2440 pointer operator->() const { return Current; }
2442 shadow_iterator& operator++() {
2443 Current = Current->getNextUsingShadowDecl();
2447 shadow_iterator operator++(int) {
2448 shadow_iterator tmp(*this);
2453 friend bool operator==(shadow_iterator x, shadow_iterator y) {
2454 return x.Current == y.Current;
2456 friend bool operator!=(shadow_iterator x, shadow_iterator y) {
2457 return x.Current != y.Current;
2461 shadow_iterator shadow_begin() const {
2462 return shadow_iterator(FirstUsingShadow);
2464 shadow_iterator shadow_end() const { return shadow_iterator(); }
2466 /// \brief Return the number of shadowed declarations associated with this
2467 /// using declaration.
2468 unsigned shadow_size() const {
2469 return std::distance(shadow_begin(), shadow_end());
2472 void addShadowDecl(UsingShadowDecl *S);
2473 void removeShadowDecl(UsingShadowDecl *S);
2475 static UsingDecl *Create(ASTContext &C, DeclContext *DC,
2476 SourceLocation UsingL,
2477 NestedNameSpecifierLoc QualifierLoc,
2478 const DeclarationNameInfo &NameInfo,
2479 bool IsTypeNameArg);
2481 SourceRange getSourceRange() const {
2482 return SourceRange(UsingLocation, getNameInfo().getEndLoc());
2485 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2486 static bool classof(const UsingDecl *D) { return true; }
2487 static bool classofKind(Kind K) { return K == Using; }
2489 friend class ASTDeclReader;
2490 friend class ASTDeclWriter;
2493 /// UnresolvedUsingValueDecl - Represents a dependent using
2494 /// declaration which was not marked with 'typename'. Unlike
2495 /// non-dependent using declarations, these *only* bring through
2496 /// non-types; otherwise they would break two-phase lookup.
2498 /// template <class T> class A : public Base<T> {
2499 /// using Base<T>::foo;
2501 class UnresolvedUsingValueDecl : public ValueDecl {
2502 /// \brief The source location of the 'using' keyword
2503 SourceLocation UsingLocation;
2505 /// \brief The nested-name-specifier that precedes the name.
2506 NestedNameSpecifierLoc QualifierLoc;
2508 /// DNLoc - Provides source/type location info for the
2509 /// declaration name embedded in the ValueDecl base class.
2510 DeclarationNameLoc DNLoc;
2512 UnresolvedUsingValueDecl(DeclContext *DC, QualType Ty,
2513 SourceLocation UsingLoc,
2514 NestedNameSpecifierLoc QualifierLoc,
2515 const DeclarationNameInfo &NameInfo)
2516 : ValueDecl(UnresolvedUsingValue, DC,
2517 NameInfo.getLoc(), NameInfo.getName(), Ty),
2518 UsingLocation(UsingLoc), QualifierLoc(QualifierLoc),
2519 DNLoc(NameInfo.getInfo())
2523 /// \brief Returns the source location of the 'using' keyword.
2524 SourceLocation getUsingLoc() const { return UsingLocation; }
2526 /// \brief Set the source location of the 'using' keyword.
2527 void setUsingLoc(SourceLocation L) { UsingLocation = L; }
2529 /// \brief Retrieve the nested-name-specifier that qualifies the name,
2530 /// with source-location information.
2531 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2533 /// \brief Retrieve the nested-name-specifier that qualifies the name.
2534 NestedNameSpecifier *getQualifier() const {
2535 return QualifierLoc.getNestedNameSpecifier();
2538 DeclarationNameInfo getNameInfo() const {
2539 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc);
2542 static UnresolvedUsingValueDecl *
2543 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
2544 NestedNameSpecifierLoc QualifierLoc,
2545 const DeclarationNameInfo &NameInfo);
2547 SourceRange getSourceRange() const {
2548 return SourceRange(UsingLocation, getNameInfo().getEndLoc());
2551 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2552 static bool classof(const UnresolvedUsingValueDecl *D) { return true; }
2553 static bool classofKind(Kind K) { return K == UnresolvedUsingValue; }
2555 friend class ASTDeclReader;
2556 friend class ASTDeclWriter;
2559 /// UnresolvedUsingTypenameDecl - Represents a dependent using
2560 /// declaration which was marked with 'typename'.
2562 /// template <class T> class A : public Base<T> {
2563 /// using typename Base<T>::foo;
2566 /// The type associated with a unresolved using typename decl is
2567 /// currently always a typename type.
2568 class UnresolvedUsingTypenameDecl : public TypeDecl {
2569 /// \brief The source location of the 'using' keyword
2570 SourceLocation UsingLocation;
2572 /// \brief The source location of the 'typename' keyword
2573 SourceLocation TypenameLocation;
2575 /// \brief The nested-name-specifier that precedes the name.
2576 NestedNameSpecifierLoc QualifierLoc;
2578 UnresolvedUsingTypenameDecl(DeclContext *DC, SourceLocation UsingLoc,
2579 SourceLocation TypenameLoc,
2580 NestedNameSpecifierLoc QualifierLoc,
2581 SourceLocation TargetNameLoc,
2582 IdentifierInfo *TargetName)
2583 : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName,
2585 TypenameLocation(TypenameLoc), QualifierLoc(QualifierLoc) { }
2587 friend class ASTDeclReader;
2590 /// \brief Returns the source location of the 'using' keyword.
2591 SourceLocation getUsingLoc() const { return getLocStart(); }
2593 /// \brief Returns the source location of the 'typename' keyword.
2594 SourceLocation getTypenameLoc() const { return TypenameLocation; }
2596 /// \brief Retrieve the nested-name-specifier that qualifies the name,
2597 /// with source-location information.
2598 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; }
2600 /// \brief Retrieve the nested-name-specifier that qualifies the name.
2601 NestedNameSpecifier *getQualifier() const {
2602 return QualifierLoc.getNestedNameSpecifier();
2605 static UnresolvedUsingTypenameDecl *
2606 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc,
2607 SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc,
2608 SourceLocation TargetNameLoc, DeclarationName TargetName);
2610 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2611 static bool classof(const UnresolvedUsingTypenameDecl *D) { return true; }
2612 static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; }
2615 /// StaticAssertDecl - Represents a C++0x static_assert declaration.
2616 class StaticAssertDecl : public Decl {
2618 StringLiteral *Message;
2619 SourceLocation RParenLoc;
2621 StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc,
2622 Expr *assertexpr, StringLiteral *message,
2623 SourceLocation RParenLoc)
2624 : Decl(StaticAssert, DC, StaticAssertLoc), AssertExpr(assertexpr),
2625 Message(message), RParenLoc(RParenLoc) { }
2628 static StaticAssertDecl *Create(ASTContext &C, DeclContext *DC,
2629 SourceLocation StaticAssertLoc,
2630 Expr *AssertExpr, StringLiteral *Message,
2631 SourceLocation RParenLoc);
2633 Expr *getAssertExpr() { return AssertExpr; }
2634 const Expr *getAssertExpr() const { return AssertExpr; }
2636 StringLiteral *getMessage() { return Message; }
2637 const StringLiteral *getMessage() const { return Message; }
2639 SourceLocation getRParenLoc() const { return RParenLoc; }
2640 void setRParenLoc(SourceLocation L) { RParenLoc = L; }
2642 SourceRange getSourceRange() const {
2643 return SourceRange(getLocation(), getRParenLoc());
2646 static bool classof(const Decl *D) { return classofKind(D->getKind()); }
2647 static bool classof(StaticAssertDecl *D) { return true; }
2648 static bool classofKind(Kind K) { return K == StaticAssert; }
2650 friend class ASTDeclReader;
2653 /// Insertion operator for diagnostics. This allows sending AccessSpecifier's
2654 /// into a diagnostic with <<.
2655 const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
2656 AccessSpecifier AS);
2658 } // end namespace clang