DeclCXX.h revision a8225449421e8c1e996a7c48300521028946482a
1//===-- DeclCXX.h - Classes for representing C++ declarations -*- C++ -*-=====// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines the C++ Decl subclasses, other than those for 11// templates (in DeclTemplate.h) and friends (in DeclFriend.h). 12// 13//===----------------------------------------------------------------------===// 14 15#ifndef LLVM_CLANG_AST_DECLCXX_H 16#define LLVM_CLANG_AST_DECLCXX_H 17 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/SmallVector.h" 23#include "llvm/ADT/SmallPtrSet.h" 24 25namespace clang { 26 27class ClassTemplateDecl; 28class ClassTemplateSpecializationDecl; 29class CXXBasePath; 30class CXXBasePaths; 31class CXXConstructorDecl; 32class CXXConversionDecl; 33class CXXDestructorDecl; 34class CXXMethodDecl; 35class CXXRecordDecl; 36class CXXMemberLookupCriteria; 37class CXXFinalOverriderMap; 38class CXXIndirectPrimaryBaseSet; 39class FriendDecl; 40 41/// \brief Represents any kind of function declaration, whether it is a 42/// concrete function or a function template. 43class AnyFunctionDecl { 44 NamedDecl *Function; 45 46 AnyFunctionDecl(NamedDecl *ND) : Function(ND) { } 47 48public: 49 AnyFunctionDecl(FunctionDecl *FD) : Function(FD) { } 50 AnyFunctionDecl(FunctionTemplateDecl *FTD); 51 52 /// \brief Implicily converts any function or function template into a 53 /// named declaration. 54 operator NamedDecl *() const { return Function; } 55 56 /// \brief Retrieve the underlying function or function template. 57 NamedDecl *get() const { return Function; } 58 59 static AnyFunctionDecl getFromNamedDecl(NamedDecl *ND) { 60 return AnyFunctionDecl(ND); 61 } 62}; 63 64} // end namespace clang 65 66namespace llvm { 67 /// Implement simplify_type for AnyFunctionDecl, so that we can dyn_cast from 68 /// AnyFunctionDecl to any function or function template declaration. 69 template<> struct simplify_type<const ::clang::AnyFunctionDecl> { 70 typedef ::clang::NamedDecl* SimpleType; 71 static SimpleType getSimplifiedValue(const ::clang::AnyFunctionDecl &Val) { 72 return Val; 73 } 74 }; 75 template<> struct simplify_type< ::clang::AnyFunctionDecl> 76 : public simplify_type<const ::clang::AnyFunctionDecl> {}; 77 78 // Provide PointerLikeTypeTraits for non-cvr pointers. 79 template<> 80 class PointerLikeTypeTraits< ::clang::AnyFunctionDecl> { 81 public: 82 static inline void *getAsVoidPointer(::clang::AnyFunctionDecl F) { 83 return F.get(); 84 } 85 static inline ::clang::AnyFunctionDecl getFromVoidPointer(void *P) { 86 return ::clang::AnyFunctionDecl::getFromNamedDecl( 87 static_cast< ::clang::NamedDecl*>(P)); 88 } 89 90 enum { NumLowBitsAvailable = 2 }; 91 }; 92 93} // end namespace llvm 94 95namespace clang { 96 97/// AccessSpecDecl - An access specifier followed by colon ':'. 98/// 99/// An objects of this class represents sugar for the syntactic occurrence 100/// of an access specifier followed by a colon in the list of member 101/// specifiers of a C++ class definition. 102/// 103/// Note that they do not represent other uses of access specifiers, 104/// such as those occurring in a list of base specifiers. 105/// Also note that this class has nothing to do with so-called 106/// "access declarations" (C++98 11.3 [class.access.dcl]). 107class AccessSpecDecl : public Decl { 108 /// ColonLoc - The location of the ':'. 109 SourceLocation ColonLoc; 110 111 AccessSpecDecl(AccessSpecifier AS, DeclContext *DC, 112 SourceLocation ASLoc, SourceLocation ColonLoc) 113 : Decl(AccessSpec, DC, ASLoc), ColonLoc(ColonLoc) { 114 setAccess(AS); 115 } 116 AccessSpecDecl(EmptyShell Empty) 117 : Decl(AccessSpec, Empty) { } 118public: 119 /// getAccessSpecifierLoc - The location of the access specifier. 120 SourceLocation getAccessSpecifierLoc() const { return getLocation(); } 121 /// setAccessSpecifierLoc - Sets the location of the access specifier. 122 void setAccessSpecifierLoc(SourceLocation ASLoc) { setLocation(ASLoc); } 123 124 /// getColonLoc - The location of the colon following the access specifier. 125 SourceLocation getColonLoc() const { return ColonLoc; } 126 /// setColonLoc - Sets the location of the colon. 127 void setColonLoc(SourceLocation CLoc) { ColonLoc = CLoc; } 128 129 SourceRange getSourceRange() const { 130 return SourceRange(getAccessSpecifierLoc(), getColonLoc()); 131 } 132 133 static AccessSpecDecl *Create(ASTContext &C, AccessSpecifier AS, 134 DeclContext *DC, SourceLocation ASLoc, 135 SourceLocation ColonLoc) { 136 return new (C) AccessSpecDecl(AS, DC, ASLoc, ColonLoc); 137 } 138 static AccessSpecDecl *Create(ASTContext &C, EmptyShell Empty) { 139 return new (C) AccessSpecDecl(Empty); 140 } 141 142 // Implement isa/cast/dyncast/etc. 143 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 144 static bool classof(const AccessSpecDecl *D) { return true; } 145 static bool classofKind(Kind K) { return K == AccessSpec; } 146}; 147 148 149/// CXXBaseSpecifier - A base class of a C++ class. 150/// 151/// Each CXXBaseSpecifier represents a single, direct base class (or 152/// struct) of a C++ class (or struct). It specifies the type of that 153/// base class, whether it is a virtual or non-virtual base, and what 154/// level of access (public, protected, private) is used for the 155/// derivation. For example: 156/// 157/// @code 158/// class A { }; 159/// class B { }; 160/// class C : public virtual A, protected B { }; 161/// @endcode 162/// 163/// In this code, C will have two CXXBaseSpecifiers, one for "public 164/// virtual A" and the other for "protected B". 165class CXXBaseSpecifier { 166 /// Range - The source code range that covers the full base 167 /// specifier, including the "virtual" (if present) and access 168 /// specifier (if present). 169 SourceRange Range; 170 171 /// \brief The source location of the ellipsis, if this is a pack 172 /// expansion. 173 SourceLocation EllipsisLoc; 174 175 /// Virtual - Whether this is a virtual base class or not. 176 bool Virtual : 1; 177 178 /// BaseOfClass - Whether this is the base of a class (true) or of a 179 /// struct (false). This determines the mapping from the access 180 /// specifier as written in the source code to the access specifier 181 /// used for semantic analysis. 182 bool BaseOfClass : 1; 183 184 /// Access - Access specifier as written in the source code (which 185 /// may be AS_none). The actual type of data stored here is an 186 /// AccessSpecifier, but we use "unsigned" here to work around a 187 /// VC++ bug. 188 unsigned Access : 2; 189 190 /// InheritConstructors - Whether the class contains a using declaration 191 /// to inherit the named class's constructors. 192 bool InheritConstructors : 1; 193 194 /// BaseTypeInfo - The type of the base class. This will be a class or struct 195 /// (or a typedef of such). The source code range does not include the 196 /// "virtual" or access specifier. 197 TypeSourceInfo *BaseTypeInfo; 198 199public: 200 CXXBaseSpecifier() { } 201 202 CXXBaseSpecifier(SourceRange R, bool V, bool BC, AccessSpecifier A, 203 TypeSourceInfo *TInfo, SourceLocation EllipsisLoc) 204 : Range(R), EllipsisLoc(EllipsisLoc), Virtual(V), BaseOfClass(BC), 205 Access(A), InheritConstructors(false), BaseTypeInfo(TInfo) { } 206 207 /// getSourceRange - Retrieves the source range that contains the 208 /// entire base specifier. 209 SourceRange getSourceRange() const { return Range; } 210 211 /// isVirtual - Determines whether the base class is a virtual base 212 /// class (or not). 213 bool isVirtual() const { return Virtual; } 214 215 /// \brief Determine whether this base class is a base of a class declared 216 /// with the 'class' keyword (vs. one declared with the 'struct' keyword). 217 bool isBaseOfClass() const { return BaseOfClass; } 218 219 /// \brief Determine whether this base specifier is a pack expansion. 220 bool isPackExpansion() const { return EllipsisLoc.isValid(); } 221 222 /// \brief Determine whether this base class's constructors get inherited. 223 bool getInheritConstructors() const { return InheritConstructors; } 224 225 /// \brief Set that this base class's constructors should be inherited. 226 void setInheritConstructors(bool Inherit = true) { 227 InheritConstructors = Inherit; 228 } 229 230 /// \brief For a pack expansion, determine the location of the ellipsis. 231 SourceLocation getEllipsisLoc() const { 232 return EllipsisLoc; 233 } 234 235 /// getAccessSpecifier - Returns the access specifier for this base 236 /// specifier. This is the actual base specifier as used for 237 /// semantic analysis, so the result can never be AS_none. To 238 /// retrieve the access specifier as written in the source code, use 239 /// getAccessSpecifierAsWritten(). 240 AccessSpecifier getAccessSpecifier() const { 241 if ((AccessSpecifier)Access == AS_none) 242 return BaseOfClass? AS_private : AS_public; 243 else 244 return (AccessSpecifier)Access; 245 } 246 247 /// getAccessSpecifierAsWritten - Retrieves the access specifier as 248 /// written in the source code (which may mean that no access 249 /// specifier was explicitly written). Use getAccessSpecifier() to 250 /// retrieve the access specifier for use in semantic analysis. 251 AccessSpecifier getAccessSpecifierAsWritten() const { 252 return (AccessSpecifier)Access; 253 } 254 255 /// getType - Retrieves the type of the base class. This type will 256 /// always be an unqualified class type. 257 QualType getType() const { return BaseTypeInfo->getType(); } 258 259 /// getTypeLoc - Retrieves the type and source location of the base class. 260 TypeSourceInfo *getTypeSourceInfo() const { return BaseTypeInfo; } 261}; 262 263/// CXXRecordDecl - Represents a C++ struct/union/class. 264/// FIXME: This class will disappear once we've properly taught RecordDecl 265/// to deal with C++-specific things. 266class CXXRecordDecl : public RecordDecl { 267 268 friend void TagDecl::startDefinition(); 269 270 struct DefinitionData { 271 DefinitionData(CXXRecordDecl *D); 272 273 /// UserDeclaredConstructor - True when this class has a 274 /// user-declared constructor. 275 bool UserDeclaredConstructor : 1; 276 277 /// UserDeclaredCopyConstructor - True when this class has a 278 /// user-declared copy constructor. 279 bool UserDeclaredCopyConstructor : 1; 280 281 /// UserDeclaredCopyAssignment - True when this class has a 282 /// user-declared copy assignment operator. 283 bool UserDeclaredCopyAssignment : 1; 284 285 /// UserDeclaredDestructor - True when this class has a 286 /// user-declared destructor. 287 bool UserDeclaredDestructor : 1; 288 289 /// Aggregate - True when this class is an aggregate. 290 bool Aggregate : 1; 291 292 /// PlainOldData - True when this class is a POD-type. 293 bool PlainOldData : 1; 294 295 /// Empty - true when this class is empty for traits purposes, 296 /// i.e. has no data members other than 0-width bit-fields, has no 297 /// virtual function/base, and doesn't inherit from a non-empty 298 /// class. Doesn't take union-ness into account. 299 bool Empty : 1; 300 301 /// Polymorphic - True when this class is polymorphic, i.e. has at 302 /// least one virtual member or derives from a polymorphic class. 303 bool Polymorphic : 1; 304 305 /// Abstract - True when this class is abstract, i.e. has at least 306 /// one pure virtual function, (that can come from a base class). 307 bool Abstract : 1; 308 309 /// HasStandardLayout - True when this class has standard layout. 310 /// 311 /// C++0x [class]p7. A standard-layout class is a class that: 312 /// * has no non-static data members of type non-standard-layout class (or 313 /// array of such types) or reference, 314 /// * has no virtual functions (10.3) and no virtual base classes (10.1), 315 /// * has the same access control (Clause 11) for all non-static data members 316 /// * has no non-standard-layout base classes, 317 /// * either has no non-static data members in the most derived class and at 318 /// most one base class with non-static data members, or has no base 319 /// classes with non-static data members, and 320 /// * has no base classes of the same type as the first non-static data 321 /// member. 322 bool HasStandardLayout : 1; 323 324 /// HasNoNonEmptyBases - True when there are no non-empty base classes. 325 /// 326 /// This is a helper bit of state used to implement HasStandardLayout more 327 /// efficiently. 328 bool HasNoNonEmptyBases : 1; 329 330 /// HasPrivateFields - True when there are private non-static data members. 331 bool HasPrivateFields : 1; 332 333 /// HasProtectedFields - True when there are protected non-static data 334 /// members. 335 bool HasProtectedFields : 1; 336 337 /// HasPublicFields - True when there are private non-static data members. 338 bool HasPublicFields : 1; 339 340 /// HasTrivialConstructor - True when this class has a trivial constructor. 341 /// 342 /// C++ [class.ctor]p5. A constructor is trivial if it is an 343 /// implicitly-declared default constructor and if: 344 /// * its class has no virtual functions and no virtual base classes, and 345 /// * all the direct base classes of its class have trivial constructors, and 346 /// * for all the nonstatic data members of its class that are of class type 347 /// (or array thereof), each such class has a trivial constructor. 348 bool HasTrivialConstructor : 1; 349 350 /// HasConstExprNonCopyMoveConstructor - True when this class has at least 351 /// one constexpr constructor which is neither the copy nor move 352 /// constructor. 353 bool HasConstExprNonCopyMoveConstructor : 1; 354 355 /// HasTrivialCopyConstructor - True when this class has a trivial copy 356 /// constructor. 357 /// 358 /// C++0x [class.copy]p13: 359 /// A copy/move constructor for class X is trivial if it is neither 360 /// user-provided nor deleted and if 361 /// -- class X has no virtual functions and no virtual base classes, and 362 /// -- the constructor selected to copy/move each direct base class 363 /// subobject is trivial, and 364 /// -- for each non-static data member of X that is of class type (or an 365 /// array thereof), the constructor selected to copy/move that member 366 /// is trivial; 367 /// otherwise the copy/move constructor is non-trivial. 368 bool HasTrivialCopyConstructor : 1; 369 370 /// HasTrivialMoveConstructor - True when this class has a trivial move 371 /// constructor. 372 /// 373 /// C++0x [class.copy]p13: 374 /// A copy/move constructor for class X is trivial if it is neither 375 /// user-provided nor deleted and if 376 /// -- class X has no virtual functions and no virtual base classes, and 377 /// -- the constructor selected to copy/move each direct base class 378 /// subobject is trivial, and 379 /// -- for each non-static data member of X that is of class type (or an 380 /// array thereof), the constructor selected to copy/move that member 381 /// is trivial; 382 /// otherwise the copy/move constructor is non-trivial. 383 bool HasTrivialMoveConstructor : 1; 384 385 /// HasTrivialCopyAssignment - True when this class has a trivial copy 386 /// assignment operator. 387 /// 388 /// C++0x [class.copy]p27: 389 /// A copy/move assignment operator for class X is trivial if it is 390 /// neither user-provided nor deleted and if 391 /// -- class X has no virtual functions and no virtual base classes, and 392 /// -- the assignment operator selected to copy/move each direct base 393 /// class subobject is trivial, and 394 /// -- for each non-static data member of X that is of class type (or an 395 /// array thereof), the assignment operator selected to copy/move 396 /// that member is trivial; 397 /// otherwise the copy/move assignment operator is non-trivial. 398 bool HasTrivialCopyAssignment : 1; 399 400 /// HasTrivialMoveAssignment - True when this class has a trivial move 401 /// assignment operator. 402 /// 403 /// C++0x [class.copy]p27: 404 /// A copy/move assignment operator for class X is trivial if it is 405 /// neither user-provided nor deleted and if 406 /// -- class X has no virtual functions and no virtual base classes, and 407 /// -- the assignment operator selected to copy/move each direct base 408 /// class subobject is trivial, and 409 /// -- for each non-static data member of X that is of class type (or an 410 /// array thereof), the assignment operator selected to copy/move 411 /// that member is trivial; 412 /// otherwise the copy/move assignment operator is non-trivial. 413 bool HasTrivialMoveAssignment : 1; 414 415 /// HasTrivialDestructor - True when this class has a trivial destructor. 416 /// 417 /// C++ [class.dtor]p3. A destructor is trivial if it is an 418 /// implicitly-declared destructor and if: 419 /// * all of the direct base classes of its class have trivial destructors 420 /// and 421 /// * for all of the non-static data members of its class that are of class 422 /// type (or array thereof), each such class has a trivial destructor. 423 bool HasTrivialDestructor : 1; 424 425 /// HasNonLiteralTypeFieldsOrBases - True when this class contains at least 426 /// one non-static data member or base class of non literal type. 427 bool HasNonLiteralTypeFieldsOrBases : 1; 428 429 /// ComputedVisibleConversions - True when visible conversion functions are 430 /// already computed and are available. 431 bool ComputedVisibleConversions : 1; 432 433 /// \brief Whether we have already declared the default constructor or 434 /// do not need to have one declared. 435 bool DeclaredDefaultConstructor : 1; 436 437 /// \brief Whether we have already declared the copy constructor. 438 bool DeclaredCopyConstructor : 1; 439 440 /// \brief Whether we have already declared the copy-assignment operator. 441 bool DeclaredCopyAssignment : 1; 442 443 /// \brief Whether we have already declared a destructor within the class. 444 bool DeclaredDestructor : 1; 445 446 /// NumBases - The number of base class specifiers in Bases. 447 unsigned NumBases; 448 449 /// NumVBases - The number of virtual base class specifiers in VBases. 450 unsigned NumVBases; 451 452 /// Bases - Base classes of this class. 453 /// FIXME: This is wasted space for a union. 454 LazyCXXBaseSpecifiersPtr Bases; 455 456 /// VBases - direct and indirect virtual base classes of this class. 457 LazyCXXBaseSpecifiersPtr VBases; 458 459 /// Conversions - Overload set containing the conversion functions 460 /// of this C++ class (but not its inherited conversion 461 /// functions). Each of the entries in this overload set is a 462 /// CXXConversionDecl. 463 UnresolvedSet<4> Conversions; 464 465 /// VisibleConversions - Overload set containing the conversion 466 /// functions of this C++ class and all those inherited conversion 467 /// functions that are visible in this class. Each of the entries 468 /// in this overload set is a CXXConversionDecl or a 469 /// FunctionTemplateDecl. 470 UnresolvedSet<4> VisibleConversions; 471 472 /// Definition - The declaration which defines this record. 473 CXXRecordDecl *Definition; 474 475 /// FirstFriend - The first friend declaration in this class, or 476 /// null if there aren't any. This is actually currently stored 477 /// in reverse order. 478 FriendDecl *FirstFriend; 479 480 /// \brief Retrieve the set of direct base classes. 481 CXXBaseSpecifier *getBases() const { 482 return Bases.get(Definition->getASTContext().getExternalSource()); 483 } 484 485 /// \brief Retrieve the set of virtual base classes. 486 CXXBaseSpecifier *getVBases() const { 487 return VBases.get(Definition->getASTContext().getExternalSource()); 488 } 489 } *DefinitionData; 490 491 struct DefinitionData &data() { 492 assert(DefinitionData && "queried property of class with no definition"); 493 return *DefinitionData; 494 } 495 496 const struct DefinitionData &data() const { 497 assert(DefinitionData && "queried property of class with no definition"); 498 return *DefinitionData; 499 } 500 501 /// \brief The template or declaration that this declaration 502 /// describes or was instantiated from, respectively. 503 /// 504 /// For non-templates, this value will be NULL. For record 505 /// declarations that describe a class template, this will be a 506 /// pointer to a ClassTemplateDecl. For member 507 /// classes of class template specializations, this will be the 508 /// MemberSpecializationInfo referring to the member class that was 509 /// instantiated or specialized. 510 llvm::PointerUnion<ClassTemplateDecl*, MemberSpecializationInfo*> 511 TemplateOrInstantiation; 512 513 friend class DeclContext; 514 515 /// \brief Notify the class that member has been added. 516 /// 517 /// This routine helps maintain information about the class based on which 518 /// members have been added. It will be invoked by DeclContext::addDecl() 519 /// whenever a member is added to this record. 520 void addedMember(Decl *D); 521 522 void markedVirtualFunctionPure(); 523 friend void FunctionDecl::setPure(bool); 524 525protected: 526 CXXRecordDecl(Kind K, TagKind TK, DeclContext *DC, 527 SourceLocation StartLoc, SourceLocation IdLoc, 528 IdentifierInfo *Id, CXXRecordDecl *PrevDecl); 529 530public: 531 /// base_class_iterator - Iterator that traverses the base classes 532 /// of a class. 533 typedef CXXBaseSpecifier* base_class_iterator; 534 535 /// base_class_const_iterator - Iterator that traverses the base 536 /// classes of a class. 537 typedef const CXXBaseSpecifier* base_class_const_iterator; 538 539 /// reverse_base_class_iterator = Iterator that traverses the base classes 540 /// of a class in reverse order. 541 typedef std::reverse_iterator<base_class_iterator> 542 reverse_base_class_iterator; 543 544 /// reverse_base_class_iterator = Iterator that traverses the base classes 545 /// of a class in reverse order. 546 typedef std::reverse_iterator<base_class_const_iterator> 547 reverse_base_class_const_iterator; 548 549 virtual CXXRecordDecl *getCanonicalDecl() { 550 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 551 } 552 virtual const CXXRecordDecl *getCanonicalDecl() const { 553 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 554 } 555 556 const CXXRecordDecl *getPreviousDeclaration() const { 557 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDeclaration()); 558 } 559 CXXRecordDecl *getPreviousDeclaration() { 560 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDeclaration()); 561 } 562 563 CXXRecordDecl *getDefinition() const { 564 if (!DefinitionData) return 0; 565 return data().Definition; 566 } 567 568 bool hasDefinition() const { return DefinitionData != 0; } 569 570 static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC, 571 SourceLocation StartLoc, SourceLocation IdLoc, 572 IdentifierInfo *Id, CXXRecordDecl* PrevDecl=0, 573 bool DelayTypeCreation = false); 574 static CXXRecordDecl *Create(const ASTContext &C, EmptyShell Empty); 575 576 bool isDynamicClass() const { 577 return data().Polymorphic || data().NumVBases != 0; 578 } 579 580 /// setBases - Sets the base classes of this struct or class. 581 void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases); 582 583 /// getNumBases - Retrieves the number of base classes of this 584 /// class. 585 unsigned getNumBases() const { return data().NumBases; } 586 587 base_class_iterator bases_begin() { return data().getBases(); } 588 base_class_const_iterator bases_begin() const { return data().getBases(); } 589 base_class_iterator bases_end() { return bases_begin() + data().NumBases; } 590 base_class_const_iterator bases_end() const { 591 return bases_begin() + data().NumBases; 592 } 593 reverse_base_class_iterator bases_rbegin() { 594 return reverse_base_class_iterator(bases_end()); 595 } 596 reverse_base_class_const_iterator bases_rbegin() const { 597 return reverse_base_class_const_iterator(bases_end()); 598 } 599 reverse_base_class_iterator bases_rend() { 600 return reverse_base_class_iterator(bases_begin()); 601 } 602 reverse_base_class_const_iterator bases_rend() const { 603 return reverse_base_class_const_iterator(bases_begin()); 604 } 605 606 /// getNumVBases - Retrieves the number of virtual base classes of this 607 /// class. 608 unsigned getNumVBases() const { return data().NumVBases; } 609 610 base_class_iterator vbases_begin() { return data().getVBases(); } 611 base_class_const_iterator vbases_begin() const { return data().getVBases(); } 612 base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; } 613 base_class_const_iterator vbases_end() const { 614 return vbases_begin() + data().NumVBases; 615 } 616 reverse_base_class_iterator vbases_rbegin() { 617 return reverse_base_class_iterator(vbases_end()); 618 } 619 reverse_base_class_const_iterator vbases_rbegin() const { 620 return reverse_base_class_const_iterator(vbases_end()); 621 } 622 reverse_base_class_iterator vbases_rend() { 623 return reverse_base_class_iterator(vbases_begin()); 624 } 625 reverse_base_class_const_iterator vbases_rend() const { 626 return reverse_base_class_const_iterator(vbases_begin()); 627 } 628 629 /// \brief Determine whether this class has any dependent base classes. 630 bool hasAnyDependentBases() const; 631 632 /// Iterator access to method members. The method iterator visits 633 /// all method members of the class, including non-instance methods, 634 /// special methods, etc. 635 typedef specific_decl_iterator<CXXMethodDecl> method_iterator; 636 637 /// method_begin - Method begin iterator. Iterates in the order the methods 638 /// were declared. 639 method_iterator method_begin() const { 640 return method_iterator(decls_begin()); 641 } 642 /// method_end - Method end iterator. 643 method_iterator method_end() const { 644 return method_iterator(decls_end()); 645 } 646 647 /// Iterator access to constructor members. 648 typedef specific_decl_iterator<CXXConstructorDecl> ctor_iterator; 649 650 ctor_iterator ctor_begin() const { 651 return ctor_iterator(decls_begin()); 652 } 653 ctor_iterator ctor_end() const { 654 return ctor_iterator(decls_end()); 655 } 656 657 /// An iterator over friend declarations. All of these are defined 658 /// in DeclFriend.h. 659 class friend_iterator; 660 friend_iterator friend_begin() const; 661 friend_iterator friend_end() const; 662 void pushFriendDecl(FriendDecl *FD); 663 664 /// Determines whether this record has any friends. 665 bool hasFriends() const { 666 return data().FirstFriend != 0; 667 } 668 669 /// \brief Determine whether this class has had its default constructor 670 /// declared implicitly or does not need one declared implicitly. 671 /// 672 /// This value is used for lazy creation of default constructors. 673 bool hasDeclaredDefaultConstructor() const { 674 return data().DeclaredDefaultConstructor; 675 } 676 677 /// hasConstCopyConstructor - Determines whether this class has a 678 /// copy constructor that accepts a const-qualified argument. 679 bool hasConstCopyConstructor(const ASTContext &Context) const; 680 681 /// getCopyConstructor - Returns the copy constructor for this class 682 CXXConstructorDecl *getCopyConstructor(const ASTContext &Context, 683 unsigned TypeQuals) const; 684 685 /// \brief Retrieve the copy-assignment operator for this class, if available. 686 /// 687 /// This routine attempts to find the copy-assignment operator for this 688 /// class, using a simplistic form of overload resolution. 689 /// 690 /// \param ArgIsConst Whether the argument to the copy-assignment operator 691 /// is const-qualified. 692 /// 693 /// \returns The copy-assignment operator that can be invoked, or NULL if 694 /// a unique copy-assignment operator could not be found. 695 CXXMethodDecl *getCopyAssignmentOperator(bool ArgIsConst) const; 696 697 /// hasUserDeclaredConstructor - Whether this class has any 698 /// user-declared constructors. When true, a default constructor 699 /// will not be implicitly declared. 700 bool hasUserDeclaredConstructor() const { 701 return data().UserDeclaredConstructor; 702 } 703 704 /// hasUserDeclaredCopyConstructor - Whether this class has a 705 /// user-declared copy constructor. When false, a copy constructor 706 /// will be implicitly declared. 707 bool hasUserDeclaredCopyConstructor() const { 708 return data().UserDeclaredCopyConstructor; 709 } 710 711 /// \brief Determine whether this class has had its copy constructor 712 /// declared, either via the user or via an implicit declaration. 713 /// 714 /// This value is used for lazy creation of copy constructors. 715 bool hasDeclaredCopyConstructor() const { 716 return data().DeclaredCopyConstructor; 717 } 718 719 /// hasUserDeclaredCopyAssignment - Whether this class has a 720 /// user-declared copy assignment operator. When false, a copy 721 /// assigment operator will be implicitly declared. 722 bool hasUserDeclaredCopyAssignment() const { 723 return data().UserDeclaredCopyAssignment; 724 } 725 726 /// \brief Determine whether this class has had its copy assignment operator 727 /// declared, either via the user or via an implicit declaration. 728 /// 729 /// This value is used for lazy creation of copy assignment operators. 730 bool hasDeclaredCopyAssignment() const { 731 return data().DeclaredCopyAssignment; 732 } 733 734 /// hasUserDeclaredDestructor - Whether this class has a 735 /// user-declared destructor. When false, a destructor will be 736 /// implicitly declared. 737 bool hasUserDeclaredDestructor() const { 738 return data().UserDeclaredDestructor; 739 } 740 741 /// \brief Determine whether this class has had its destructor declared, 742 /// either via the user or via an implicit declaration. 743 /// 744 /// This value is used for lazy creation of destructors. 745 bool hasDeclaredDestructor() const { return data().DeclaredDestructor; } 746 747 /// getConversions - Retrieve the overload set containing all of the 748 /// conversion functions in this class. 749 UnresolvedSetImpl *getConversionFunctions() { 750 return &data().Conversions; 751 } 752 const UnresolvedSetImpl *getConversionFunctions() const { 753 return &data().Conversions; 754 } 755 756 typedef UnresolvedSetImpl::iterator conversion_iterator; 757 conversion_iterator conversion_begin() const { 758 return getConversionFunctions()->begin(); 759 } 760 conversion_iterator conversion_end() const { 761 return getConversionFunctions()->end(); 762 } 763 764 /// Removes a conversion function from this class. The conversion 765 /// function must currently be a member of this class. Furthermore, 766 /// this class must currently be in the process of being defined. 767 void removeConversion(const NamedDecl *Old); 768 769 /// getVisibleConversionFunctions - get all conversion functions visible 770 /// in current class; including conversion function templates. 771 const UnresolvedSetImpl *getVisibleConversionFunctions(); 772 773 /// isAggregate - Whether this class is an aggregate (C++ 774 /// [dcl.init.aggr]), which is a class with no user-declared 775 /// constructors, no private or protected non-static data members, 776 /// no base classes, and no virtual functions (C++ [dcl.init.aggr]p1). 777 bool isAggregate() const { return data().Aggregate; } 778 779 /// isPOD - Whether this class is a POD-type (C++ [class]p4), which is a class 780 /// that is an aggregate that has no non-static non-POD data members, no 781 /// reference data members, no user-defined copy assignment operator and no 782 /// user-defined destructor. 783 bool isPOD() const { return data().PlainOldData; } 784 785 /// isEmpty - Whether this class is empty (C++0x [meta.unary.prop]), which 786 /// means it has a virtual function, virtual base, data member (other than 787 /// 0-width bit-field) or inherits from a non-empty class. Does NOT include 788 /// a check for union-ness. 789 bool isEmpty() const { return data().Empty; } 790 791 /// isPolymorphic - Whether this class is polymorphic (C++ [class.virtual]), 792 /// which means that the class contains or inherits a virtual function. 793 bool isPolymorphic() const { return data().Polymorphic; } 794 795 /// isAbstract - Whether this class is abstract (C++ [class.abstract]), 796 /// which means that the class contains or inherits a pure virtual function. 797 bool isAbstract() const { return data().Abstract; } 798 799 /// hasStandardLayout - Whether this class has standard layout 800 /// (C++ [class]p7) 801 bool hasStandardLayout() const { return data().HasStandardLayout; } 802 803 // hasTrivialConstructor - Whether this class has a trivial constructor 804 // (C++ [class.ctor]p5) 805 bool hasTrivialConstructor() const { return data().HasTrivialConstructor; } 806 807 // hasConstExprNonCopyMoveConstructor - Whether this class has at least one 808 // constexpr constructor other than the copy or move constructors 809 bool hasConstExprNonCopyMoveConstructor() const { 810 return data().HasConstExprNonCopyMoveConstructor; 811 } 812 813 // hasTrivialCopyConstructor - Whether this class has a trivial copy 814 // constructor (C++ [class.copy]p6, C++0x [class.copy]p13) 815 bool hasTrivialCopyConstructor() const { 816 return data().HasTrivialCopyConstructor; 817 } 818 819 // hasTrivialMoveConstructor - Whether this class has a trivial move 820 // constructor (C++0x [class.copy]p13) 821 bool hasTrivialMoveConstructor() const { 822 return data().HasTrivialMoveConstructor; 823 } 824 825 // hasTrivialCopyAssignment - Whether this class has a trivial copy 826 // assignment operator (C++ [class.copy]p11, C++0x [class.copy]p27) 827 bool hasTrivialCopyAssignment() const { 828 return data().HasTrivialCopyAssignment; 829 } 830 831 // hasTrivialMoveAssignment - Whether this class has a trivial move 832 // assignment operator (C++0x [class.copy]p27) 833 bool hasTrivialMoveAssignment() const { 834 return data().HasTrivialMoveAssignment; 835 } 836 837 // hasTrivialDestructor - Whether this class has a trivial destructor 838 // (C++ [class.dtor]p3) 839 bool hasTrivialDestructor() const { return data().HasTrivialDestructor; } 840 841 // hasNonLiteralTypeFieldsOrBases - Whether this class has a non-literal type 842 // non-static data member or base class. 843 bool hasNonLiteralTypeFieldsOrBases() const { 844 return data().HasNonLiteralTypeFieldsOrBases; 845 } 846 847 // isTriviallyCopyable - Whether this class is considered trivially copyable 848 // (C++0x [class]p5). 849 bool isTriviallyCopyable() const; 850 851 /// \brief If this record is an instantiation of a member class, 852 /// retrieves the member class from which it was instantiated. 853 /// 854 /// This routine will return non-NULL for (non-templated) member 855 /// classes of class templates. For example, given: 856 /// 857 /// \code 858 /// template<typename T> 859 /// struct X { 860 /// struct A { }; 861 /// }; 862 /// \endcode 863 /// 864 /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl 865 /// whose parent is the class template specialization X<int>. For 866 /// this declaration, getInstantiatedFromMemberClass() will return 867 /// the CXXRecordDecl X<T>::A. When a complete definition of 868 /// X<int>::A is required, it will be instantiated from the 869 /// declaration returned by getInstantiatedFromMemberClass(). 870 CXXRecordDecl *getInstantiatedFromMemberClass() const; 871 872 /// \brief If this class is an instantiation of a member class of a 873 /// class template specialization, retrieves the member specialization 874 /// information. 875 MemberSpecializationInfo *getMemberSpecializationInfo() const; 876 877 /// \brief Specify that this record is an instantiation of the 878 /// member class RD. 879 void setInstantiationOfMemberClass(CXXRecordDecl *RD, 880 TemplateSpecializationKind TSK); 881 882 /// \brief Retrieves the class template that is described by this 883 /// class declaration. 884 /// 885 /// Every class template is represented as a ClassTemplateDecl and a 886 /// CXXRecordDecl. The former contains template properties (such as 887 /// the template parameter lists) while the latter contains the 888 /// actual description of the template's 889 /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the 890 /// CXXRecordDecl that from a ClassTemplateDecl, while 891 /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from 892 /// a CXXRecordDecl. 893 ClassTemplateDecl *getDescribedClassTemplate() const { 894 return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl*>(); 895 } 896 897 void setDescribedClassTemplate(ClassTemplateDecl *Template) { 898 TemplateOrInstantiation = Template; 899 } 900 901 /// \brief Determine whether this particular class is a specialization or 902 /// instantiation of a class template or member class of a class template, 903 /// and how it was instantiated or specialized. 904 TemplateSpecializationKind getTemplateSpecializationKind() const; 905 906 /// \brief Set the kind of specialization or template instantiation this is. 907 void setTemplateSpecializationKind(TemplateSpecializationKind TSK); 908 909 /// getDestructor - Returns the destructor decl for this class. 910 CXXDestructorDecl *getDestructor() const; 911 912 /// isLocalClass - If the class is a local class [class.local], returns 913 /// the enclosing function declaration. 914 const FunctionDecl *isLocalClass() const { 915 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext())) 916 return RD->isLocalClass(); 917 918 return dyn_cast<FunctionDecl>(getDeclContext()); 919 } 920 921 /// \brief Determine whether this class is derived from the class \p Base. 922 /// 923 /// This routine only determines whether this class is derived from \p Base, 924 /// but does not account for factors that may make a Derived -> Base class 925 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 926 /// base class subobjects. 927 /// 928 /// \param Base the base class we are searching for. 929 /// 930 /// \returns true if this class is derived from Base, false otherwise. 931 bool isDerivedFrom(const CXXRecordDecl *Base) const; 932 933 /// \brief Determine whether this class is derived from the type \p Base. 934 /// 935 /// This routine only determines whether this class is derived from \p Base, 936 /// but does not account for factors that may make a Derived -> Base class 937 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 938 /// base class subobjects. 939 /// 940 /// \param Base the base class we are searching for. 941 /// 942 /// \param Paths will contain the paths taken from the current class to the 943 /// given \p Base class. 944 /// 945 /// \returns true if this class is derived from Base, false otherwise. 946 /// 947 /// \todo add a separate paramaeter to configure IsDerivedFrom, rather than 948 /// tangling input and output in \p Paths 949 bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const; 950 951 /// \brief Determine whether this class is virtually derived from 952 /// the class \p Base. 953 /// 954 /// This routine only determines whether this class is virtually 955 /// derived from \p Base, but does not account for factors that may 956 /// make a Derived -> Base class ill-formed, such as 957 /// private/protected inheritance or multiple, ambiguous base class 958 /// subobjects. 959 /// 960 /// \param Base the base class we are searching for. 961 /// 962 /// \returns true if this class is virtually derived from Base, 963 /// false otherwise. 964 bool isVirtuallyDerivedFrom(CXXRecordDecl *Base) const; 965 966 /// \brief Determine whether this class is provably not derived from 967 /// the type \p Base. 968 bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const; 969 970 /// \brief Function type used by forallBases() as a callback. 971 /// 972 /// \param Base the definition of the base class 973 /// 974 /// \returns true if this base matched the search criteria 975 typedef bool ForallBasesCallback(const CXXRecordDecl *BaseDefinition, 976 void *UserData); 977 978 /// \brief Determines if the given callback holds for all the direct 979 /// or indirect base classes of this type. 980 /// 981 /// The class itself does not count as a base class. This routine 982 /// returns false if the class has non-computable base classes. 983 /// 984 /// \param AllowShortCircuit if false, forces the callback to be called 985 /// for every base class, even if a dependent or non-matching base was 986 /// found. 987 bool forallBases(ForallBasesCallback *BaseMatches, void *UserData, 988 bool AllowShortCircuit = true) const; 989 990 /// \brief Function type used by lookupInBases() to determine whether a 991 /// specific base class subobject matches the lookup criteria. 992 /// 993 /// \param Specifier the base-class specifier that describes the inheritance 994 /// from the base class we are trying to match. 995 /// 996 /// \param Path the current path, from the most-derived class down to the 997 /// base named by the \p Specifier. 998 /// 999 /// \param UserData a single pointer to user-specified data, provided to 1000 /// lookupInBases(). 1001 /// 1002 /// \returns true if this base matched the search criteria, false otherwise. 1003 typedef bool BaseMatchesCallback(const CXXBaseSpecifier *Specifier, 1004 CXXBasePath &Path, 1005 void *UserData); 1006 1007 /// \brief Look for entities within the base classes of this C++ class, 1008 /// transitively searching all base class subobjects. 1009 /// 1010 /// This routine uses the callback function \p BaseMatches to find base 1011 /// classes meeting some search criteria, walking all base class subobjects 1012 /// and populating the given \p Paths structure with the paths through the 1013 /// inheritance hierarchy that resulted in a match. On a successful search, 1014 /// the \p Paths structure can be queried to retrieve the matching paths and 1015 /// to determine if there were any ambiguities. 1016 /// 1017 /// \param BaseMatches callback function used to determine whether a given 1018 /// base matches the user-defined search criteria. 1019 /// 1020 /// \param UserData user data pointer that will be provided to \p BaseMatches. 1021 /// 1022 /// \param Paths used to record the paths from this class to its base class 1023 /// subobjects that match the search criteria. 1024 /// 1025 /// \returns true if there exists any path from this class to a base class 1026 /// subobject that matches the search criteria. 1027 bool lookupInBases(BaseMatchesCallback *BaseMatches, void *UserData, 1028 CXXBasePaths &Paths) const; 1029 1030 /// \brief Base-class lookup callback that determines whether the given 1031 /// base class specifier refers to a specific class declaration. 1032 /// 1033 /// This callback can be used with \c lookupInBases() to determine whether 1034 /// a given derived class has is a base class subobject of a particular type. 1035 /// The user data pointer should refer to the canonical CXXRecordDecl of the 1036 /// base class that we are searching for. 1037 static bool FindBaseClass(const CXXBaseSpecifier *Specifier, 1038 CXXBasePath &Path, void *BaseRecord); 1039 1040 /// \brief Base-class lookup callback that determines whether the 1041 /// given base class specifier refers to a specific class 1042 /// declaration and describes virtual derivation. 1043 /// 1044 /// This callback can be used with \c lookupInBases() to determine 1045 /// whether a given derived class has is a virtual base class 1046 /// subobject of a particular type. The user data pointer should 1047 /// refer to the canonical CXXRecordDecl of the base class that we 1048 /// are searching for. 1049 static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier, 1050 CXXBasePath &Path, void *BaseRecord); 1051 1052 /// \brief Base-class lookup callback that determines whether there exists 1053 /// a tag with the given name. 1054 /// 1055 /// This callback can be used with \c lookupInBases() to find tag members 1056 /// of the given name within a C++ class hierarchy. The user data pointer 1057 /// is an opaque \c DeclarationName pointer. 1058 static bool FindTagMember(const CXXBaseSpecifier *Specifier, 1059 CXXBasePath &Path, void *Name); 1060 1061 /// \brief Base-class lookup callback that determines whether there exists 1062 /// a member with the given name. 1063 /// 1064 /// This callback can be used with \c lookupInBases() to find members 1065 /// of the given name within a C++ class hierarchy. The user data pointer 1066 /// is an opaque \c DeclarationName pointer. 1067 static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier, 1068 CXXBasePath &Path, void *Name); 1069 1070 /// \brief Base-class lookup callback that determines whether there exists 1071 /// a member with the given name that can be used in a nested-name-specifier. 1072 /// 1073 /// This callback can be used with \c lookupInBases() to find membes of 1074 /// the given name within a C++ class hierarchy that can occur within 1075 /// nested-name-specifiers. 1076 static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier, 1077 CXXBasePath &Path, 1078 void *UserData); 1079 1080 /// \brief Retrieve the final overriders for each virtual member 1081 /// function in the class hierarchy where this class is the 1082 /// most-derived class in the class hierarchy. 1083 void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const; 1084 1085 /// \brief Get the indirect primary bases for this class. 1086 void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const; 1087 1088 /// viewInheritance - Renders and displays an inheritance diagram 1089 /// for this C++ class and all of its base classes (transitively) using 1090 /// GraphViz. 1091 void viewInheritance(ASTContext& Context) const; 1092 1093 /// MergeAccess - Calculates the access of a decl that is reached 1094 /// along a path. 1095 static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, 1096 AccessSpecifier DeclAccess) { 1097 assert(DeclAccess != AS_none); 1098 if (DeclAccess == AS_private) return AS_none; 1099 return (PathAccess > DeclAccess ? PathAccess : DeclAccess); 1100 } 1101 1102 /// \brief Indicates that the definition of this class is now complete. 1103 virtual void completeDefinition(); 1104 1105 /// \brief Indicates that the definition of this class is now complete, 1106 /// and provides a final overrider map to help determine 1107 /// 1108 /// \param FinalOverriders The final overrider map for this class, which can 1109 /// be provided as an optimization for abstract-class checking. If NULL, 1110 /// final overriders will be computed if they are needed to complete the 1111 /// definition. 1112 void completeDefinition(CXXFinalOverriderMap *FinalOverriders); 1113 1114 /// \brief Determine whether this class may end up being abstract, even though 1115 /// it is not yet known to be abstract. 1116 /// 1117 /// \returns true if this class is not known to be abstract but has any 1118 /// base classes that are abstract. In this case, \c completeDefinition() 1119 /// will need to compute final overriders to determine whether the class is 1120 /// actually abstract. 1121 bool mayBeAbstract() const; 1122 1123 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1124 static bool classofKind(Kind K) { 1125 return K >= firstCXXRecord && K <= lastCXXRecord; 1126 } 1127 static bool classof(const CXXRecordDecl *D) { return true; } 1128 static bool classof(const ClassTemplateSpecializationDecl *D) { 1129 return true; 1130 } 1131 1132 friend class ASTDeclReader; 1133 friend class ASTDeclWriter; 1134 friend class ASTReader; 1135 friend class ASTWriter; 1136}; 1137 1138/// CXXMethodDecl - Represents a static or instance method of a 1139/// struct/union/class. 1140class CXXMethodDecl : public FunctionDecl { 1141protected: 1142 CXXMethodDecl(Kind DK, CXXRecordDecl *RD, SourceLocation StartLoc, 1143 const DeclarationNameInfo &NameInfo, 1144 QualType T, TypeSourceInfo *TInfo, 1145 bool isStatic, StorageClass SCAsWritten, bool isInline, 1146 SourceLocation EndLocation) 1147 : FunctionDecl(DK, RD, StartLoc, NameInfo, T, TInfo, 1148 (isStatic ? SC_Static : SC_None), 1149 SCAsWritten, isInline) { 1150 if (EndLocation.isValid()) 1151 setRangeEnd(EndLocation); 1152 } 1153 1154public: 1155 static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1156 SourceLocation StartLoc, 1157 const DeclarationNameInfo &NameInfo, 1158 QualType T, TypeSourceInfo *TInfo, 1159 bool isStatic, 1160 StorageClass SCAsWritten, 1161 bool isInline, 1162 SourceLocation EndLocation); 1163 1164 bool isStatic() const { return getStorageClass() == SC_Static; } 1165 bool isInstance() const { return !isStatic(); } 1166 1167 bool isVirtual() const { 1168 CXXMethodDecl *CD = 1169 cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl()); 1170 1171 if (CD->isVirtualAsWritten()) 1172 return true; 1173 1174 return (CD->begin_overridden_methods() != CD->end_overridden_methods()); 1175 } 1176 1177 /// \brief Determine whether this is a usual deallocation function 1178 /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded 1179 /// delete or delete[] operator with a particular signature. 1180 bool isUsualDeallocationFunction() const; 1181 1182 /// \brief Determine whether this is a copy-assignment operator, regardless 1183 /// of whether it was declared implicitly or explicitly. 1184 bool isCopyAssignmentOperator() const; 1185 1186 const CXXMethodDecl *getCanonicalDecl() const { 1187 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1188 } 1189 CXXMethodDecl *getCanonicalDecl() { 1190 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1191 } 1192 1193 /// 1194 void addOverriddenMethod(const CXXMethodDecl *MD); 1195 1196 typedef const CXXMethodDecl ** method_iterator; 1197 1198 method_iterator begin_overridden_methods() const; 1199 method_iterator end_overridden_methods() const; 1200 unsigned size_overridden_methods() const; 1201 1202 /// getParent - Returns the parent of this method declaration, which 1203 /// is the class in which this method is defined. 1204 const CXXRecordDecl *getParent() const { 1205 return cast<CXXRecordDecl>(FunctionDecl::getParent()); 1206 } 1207 1208 /// getParent - Returns the parent of this method declaration, which 1209 /// is the class in which this method is defined. 1210 CXXRecordDecl *getParent() { 1211 return const_cast<CXXRecordDecl *>( 1212 cast<CXXRecordDecl>(FunctionDecl::getParent())); 1213 } 1214 1215 /// getThisType - Returns the type of 'this' pointer. 1216 /// Should only be called for instance methods. 1217 QualType getThisType(ASTContext &C) const; 1218 1219 unsigned getTypeQualifiers() const { 1220 return getType()->getAs<FunctionProtoType>()->getTypeQuals(); 1221 } 1222 1223 /// \brief Retrieve the ref-qualifier associated with this method. 1224 /// 1225 /// In the following example, \c f() has an lvalue ref-qualifier, \c g() 1226 /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier. 1227 /// \code 1228 /// struct X { 1229 /// void f() &; 1230 /// void g() &&; 1231 /// void h(); 1232 /// }; 1233 RefQualifierKind getRefQualifier() const { 1234 return getType()->getAs<FunctionProtoType>()->getRefQualifier(); 1235 } 1236 1237 bool hasInlineBody() const; 1238 1239 // Implement isa/cast/dyncast/etc. 1240 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1241 static bool classof(const CXXMethodDecl *D) { return true; } 1242 static bool classofKind(Kind K) { 1243 return K >= firstCXXMethod && K <= lastCXXMethod; 1244 } 1245}; 1246 1247/// CXXCtorInitializer - Represents a C++ base or member 1248/// initializer, which is part of a constructor initializer that 1249/// initializes one non-static member variable or one base class. For 1250/// example, in the following, both 'A(a)' and 'f(3.14159)' are member 1251/// initializers: 1252/// 1253/// @code 1254/// class A { }; 1255/// class B : public A { 1256/// float f; 1257/// public: 1258/// B(A& a) : A(a), f(3.14159) { } 1259/// }; 1260/// @endcode 1261class CXXCtorInitializer { 1262 /// \brief Either the base class name (stored as a TypeSourceInfo*), an normal 1263 /// field (FieldDecl), anonymous field (IndirectFieldDecl*), or target 1264 /// constructor (CXXConstructorDecl*) being initialized. 1265 llvm::PointerUnion4<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *, 1266 CXXConstructorDecl *> 1267 Initializee; 1268 1269 /// \brief The source location for the field name or, for a base initializer 1270 /// pack expansion, the location of the ellipsis. In the case of a delegating 1271 /// constructor, it will still include the type's source location as the 1272 /// Initializee points to the CXXConstructorDecl (to allow loop detection). 1273 SourceLocation MemberOrEllipsisLocation; 1274 1275 /// \brief The argument used to initialize the base or member, which may 1276 /// end up constructing an object (when multiple arguments are involved). 1277 Stmt *Init; 1278 1279 /// LParenLoc - Location of the left paren of the ctor-initializer. 1280 SourceLocation LParenLoc; 1281 1282 /// RParenLoc - Location of the right paren of the ctor-initializer. 1283 SourceLocation RParenLoc; 1284 1285 /// IsVirtual - If the initializer is a base initializer, this keeps track 1286 /// of whether the base is virtual or not. 1287 bool IsVirtual : 1; 1288 1289 /// IsWritten - Whether or not the initializer is explicitly written 1290 /// in the sources. 1291 bool IsWritten : 1; 1292 1293 /// SourceOrderOrNumArrayIndices - If IsWritten is true, then this 1294 /// number keeps track of the textual order of this initializer in the 1295 /// original sources, counting from 0; otherwise, if IsWritten is false, 1296 /// it stores the number of array index variables stored after this 1297 /// object in memory. 1298 unsigned SourceOrderOrNumArrayIndices : 14; 1299 1300 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1301 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1302 SourceLocation R, VarDecl **Indices, unsigned NumIndices); 1303 1304public: 1305 /// CXXCtorInitializer - Creates a new base-class initializer. 1306 explicit 1307 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual, 1308 SourceLocation L, Expr *Init, SourceLocation R, 1309 SourceLocation EllipsisLoc); 1310 1311 /// CXXCtorInitializer - Creates a new member initializer. 1312 explicit 1313 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1314 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1315 SourceLocation R); 1316 1317 /// CXXCtorInitializer - Creates a new anonymous field initializer. 1318 explicit 1319 CXXCtorInitializer(ASTContext &Context, IndirectFieldDecl *Member, 1320 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1321 SourceLocation R); 1322 1323 /// CXXCtorInitializer - Creates a new delegating Initializer. 1324 explicit 1325 CXXCtorInitializer(ASTContext &Context, SourceLocation D, SourceLocation L, 1326 CXXConstructorDecl *Target, Expr *Init, SourceLocation R); 1327 1328 /// \brief Creates a new member initializer that optionally contains 1329 /// array indices used to describe an elementwise initialization. 1330 static CXXCtorInitializer *Create(ASTContext &Context, FieldDecl *Member, 1331 SourceLocation MemberLoc, SourceLocation L, 1332 Expr *Init, SourceLocation R, 1333 VarDecl **Indices, unsigned NumIndices); 1334 1335 /// isBaseInitializer - Returns true when this initializer is 1336 /// initializing a base class. 1337 bool isBaseInitializer() const { return Initializee.is<TypeSourceInfo*>(); } 1338 1339 /// isMemberInitializer - Returns true when this initializer is 1340 /// initializing a non-static data member. 1341 bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); } 1342 1343 bool isAnyMemberInitializer() const { 1344 return isMemberInitializer() || isIndirectMemberInitializer(); 1345 } 1346 1347 bool isIndirectMemberInitializer() const { 1348 return Initializee.is<IndirectFieldDecl*>(); 1349 } 1350 1351 /// isDelegatingInitializer - Returns true when this initializer is creating 1352 /// a delegating constructor. 1353 bool isDelegatingInitializer() const { 1354 return Initializee.is<CXXConstructorDecl *>(); 1355 } 1356 1357 /// \brief Determine whether this initializer is a pack expansion. 1358 bool isPackExpansion() const { 1359 return isBaseInitializer() && MemberOrEllipsisLocation.isValid(); 1360 } 1361 1362 // \brief For a pack expansion, returns the location of the ellipsis. 1363 SourceLocation getEllipsisLoc() const { 1364 assert(isPackExpansion() && "Initializer is not a pack expansion"); 1365 return MemberOrEllipsisLocation; 1366 } 1367 1368 /// If this is a base class initializer, returns the type of the 1369 /// base class with location information. Otherwise, returns an NULL 1370 /// type location. 1371 TypeLoc getBaseClassLoc() const; 1372 1373 /// If this is a base class initializer, returns the type of the base class. 1374 /// Otherwise, returns NULL. 1375 const Type *getBaseClass() const; 1376 1377 /// Returns whether the base is virtual or not. 1378 bool isBaseVirtual() const { 1379 assert(isBaseInitializer() && "Must call this on base initializer!"); 1380 1381 return IsVirtual; 1382 } 1383 1384 /// \brief Returns the declarator information for a base class initializer. 1385 TypeSourceInfo *getBaseClassInfo() const { 1386 return Initializee.dyn_cast<TypeSourceInfo *>(); 1387 } 1388 1389 /// getMember - If this is a member initializer, returns the 1390 /// declaration of the non-static data member being 1391 /// initialized. Otherwise, returns NULL. 1392 FieldDecl *getMember() const { 1393 if (isMemberInitializer()) 1394 return Initializee.get<FieldDecl*>(); 1395 else 1396 return 0; 1397 } 1398 FieldDecl *getAnyMember() const { 1399 if (isMemberInitializer()) 1400 return Initializee.get<FieldDecl*>(); 1401 else if (isIndirectMemberInitializer()) 1402 return Initializee.get<IndirectFieldDecl*>()->getAnonField(); 1403 else 1404 return 0; 1405 } 1406 1407 IndirectFieldDecl *getIndirectMember() const { 1408 if (isIndirectMemberInitializer()) 1409 return Initializee.get<IndirectFieldDecl*>(); 1410 else 1411 return 0; 1412 } 1413 1414 CXXConstructorDecl *getTargetConstructor() const { 1415 if (isDelegatingInitializer()) 1416 return Initializee.get<CXXConstructorDecl*>(); 1417 else 1418 return 0; 1419 } 1420 1421 SourceLocation getMemberLocation() const { 1422 return MemberOrEllipsisLocation; 1423 } 1424 1425 /// \brief Determine the source location of the initializer. 1426 SourceLocation getSourceLocation() const; 1427 1428 /// \brief Determine the source range covering the entire initializer. 1429 SourceRange getSourceRange() const; 1430 1431 /// isWritten - Returns true if this initializer is explicitly written 1432 /// in the source code. 1433 bool isWritten() const { return IsWritten; } 1434 1435 /// \brief Return the source position of the initializer, counting from 0. 1436 /// If the initializer was implicit, -1 is returned. 1437 int getSourceOrder() const { 1438 return IsWritten ? static_cast<int>(SourceOrderOrNumArrayIndices) : -1; 1439 } 1440 1441 /// \brief Set the source order of this initializer. This method can only 1442 /// be called once for each initializer; it cannot be called on an 1443 /// initializer having a positive number of (implicit) array indices. 1444 void setSourceOrder(int pos) { 1445 assert(!IsWritten && 1446 "calling twice setSourceOrder() on the same initializer"); 1447 assert(SourceOrderOrNumArrayIndices == 0 && 1448 "setSourceOrder() used when there are implicit array indices"); 1449 assert(pos >= 0 && 1450 "setSourceOrder() used to make an initializer implicit"); 1451 IsWritten = true; 1452 SourceOrderOrNumArrayIndices = static_cast<unsigned>(pos); 1453 } 1454 1455 SourceLocation getLParenLoc() const { return LParenLoc; } 1456 SourceLocation getRParenLoc() const { return RParenLoc; } 1457 1458 /// \brief Determine the number of implicit array indices used while 1459 /// described an array member initialization. 1460 unsigned getNumArrayIndices() const { 1461 return IsWritten ? 0 : SourceOrderOrNumArrayIndices; 1462 } 1463 1464 /// \brief Retrieve a particular array index variable used to 1465 /// describe an array member initialization. 1466 VarDecl *getArrayIndex(unsigned I) { 1467 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1468 return reinterpret_cast<VarDecl **>(this + 1)[I]; 1469 } 1470 const VarDecl *getArrayIndex(unsigned I) const { 1471 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1472 return reinterpret_cast<const VarDecl * const *>(this + 1)[I]; 1473 } 1474 void setArrayIndex(unsigned I, VarDecl *Index) { 1475 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1476 reinterpret_cast<VarDecl **>(this + 1)[I] = Index; 1477 } 1478 1479 Expr *getInit() const { return static_cast<Expr *>(Init); } 1480}; 1481 1482/// CXXConstructorDecl - Represents a C++ constructor within a 1483/// class. For example: 1484/// 1485/// @code 1486/// class X { 1487/// public: 1488/// explicit X(int); // represented by a CXXConstructorDecl. 1489/// }; 1490/// @endcode 1491class CXXConstructorDecl : public CXXMethodDecl { 1492 /// IsExplicitSpecified - Whether this constructor declaration has the 1493 /// 'explicit' keyword specified. 1494 bool IsExplicitSpecified : 1; 1495 1496 /// ImplicitlyDefined - Whether this constructor was implicitly 1497 /// defined by the compiler. When false, the constructor was defined 1498 /// by the user. In C++03, this flag will have the same value as 1499 /// Implicit. In C++0x, however, a constructor that is 1500 /// explicitly defaulted (i.e., defined with " = default") will have 1501 /// @c !Implicit && ImplicitlyDefined. 1502 bool ImplicitlyDefined : 1; 1503 1504 /// Support for base and member initializers. 1505 /// CtorInitializers - The arguments used to initialize the base 1506 /// or member. 1507 CXXCtorInitializer **CtorInitializers; 1508 unsigned NumCtorInitializers; 1509 1510 CXXConstructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1511 const DeclarationNameInfo &NameInfo, 1512 QualType T, TypeSourceInfo *TInfo, 1513 bool isExplicitSpecified, bool isInline, 1514 bool isImplicitlyDeclared) 1515 : CXXMethodDecl(CXXConstructor, RD, StartLoc, NameInfo, T, TInfo, false, 1516 SC_None, isInline, SourceLocation()), 1517 IsExplicitSpecified(isExplicitSpecified), ImplicitlyDefined(false), 1518 CtorInitializers(0), NumCtorInitializers(0) { 1519 setImplicit(isImplicitlyDeclared); 1520 } 1521 1522public: 1523 static CXXConstructorDecl *Create(ASTContext &C, EmptyShell Empty); 1524 static CXXConstructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1525 SourceLocation StartLoc, 1526 const DeclarationNameInfo &NameInfo, 1527 QualType T, TypeSourceInfo *TInfo, 1528 bool isExplicit, 1529 bool isInline, bool isImplicitlyDeclared); 1530 1531 /// isExplicitSpecified - Whether this constructor declaration has the 1532 /// 'explicit' keyword specified. 1533 bool isExplicitSpecified() const { return IsExplicitSpecified; } 1534 1535 /// isExplicit - Whether this constructor was marked "explicit" or not. 1536 bool isExplicit() const { 1537 return cast<CXXConstructorDecl>(getFirstDeclaration()) 1538 ->isExplicitSpecified(); 1539 } 1540 1541 /// isImplicitlyDefined - Whether this constructor was implicitly 1542 /// defined. If false, then this constructor was defined by the 1543 /// user. This operation can only be invoked if the constructor has 1544 /// already been defined. 1545 bool isImplicitlyDefined() const { 1546 assert(isThisDeclarationADefinition() && 1547 "Can only get the implicit-definition flag once the " 1548 "constructor has been defined"); 1549 return ImplicitlyDefined; 1550 } 1551 1552 /// setImplicitlyDefined - Set whether this constructor was 1553 /// implicitly defined or not. 1554 void setImplicitlyDefined(bool ID) { 1555 assert(isThisDeclarationADefinition() && 1556 "Can only set the implicit-definition flag once the constructor " 1557 "has been defined"); 1558 ImplicitlyDefined = ID; 1559 } 1560 1561 /// init_iterator - Iterates through the member/base initializer list. 1562 typedef CXXCtorInitializer **init_iterator; 1563 1564 /// init_const_iterator - Iterates through the memberbase initializer list. 1565 typedef CXXCtorInitializer * const * init_const_iterator; 1566 1567 /// init_begin() - Retrieve an iterator to the first initializer. 1568 init_iterator init_begin() { return CtorInitializers; } 1569 /// begin() - Retrieve an iterator to the first initializer. 1570 init_const_iterator init_begin() const { return CtorInitializers; } 1571 1572 /// init_end() - Retrieve an iterator past the last initializer. 1573 init_iterator init_end() { 1574 return CtorInitializers + NumCtorInitializers; 1575 } 1576 /// end() - Retrieve an iterator past the last initializer. 1577 init_const_iterator init_end() const { 1578 return CtorInitializers + NumCtorInitializers; 1579 } 1580 1581 typedef std::reverse_iterator<init_iterator> init_reverse_iterator; 1582 typedef std::reverse_iterator<init_const_iterator> init_const_reverse_iterator; 1583 1584 init_reverse_iterator init_rbegin() { 1585 return init_reverse_iterator(init_end()); 1586 } 1587 init_const_reverse_iterator init_rbegin() const { 1588 return init_const_reverse_iterator(init_end()); 1589 } 1590 1591 init_reverse_iterator init_rend() { 1592 return init_reverse_iterator(init_begin()); 1593 } 1594 init_const_reverse_iterator init_rend() const { 1595 return init_const_reverse_iterator(init_begin()); 1596 } 1597 1598 /// getNumArgs - Determine the number of arguments used to 1599 /// initialize the member or base. 1600 unsigned getNumCtorInitializers() const { 1601 return NumCtorInitializers; 1602 } 1603 1604 void setNumCtorInitializers(unsigned numCtorInitializers) { 1605 NumCtorInitializers = numCtorInitializers; 1606 } 1607 1608 void setCtorInitializers(CXXCtorInitializer ** initializers) { 1609 CtorInitializers = initializers; 1610 } 1611 /// isDefaultConstructor - Whether this constructor is a default 1612 /// constructor (C++ [class.ctor]p5), which can be used to 1613 /// default-initialize a class of this type. 1614 bool isDefaultConstructor() const; 1615 1616 /// isCopyConstructor - Whether this constructor is a copy 1617 /// constructor (C++ [class.copy]p2, which can be used to copy the 1618 /// class. @p TypeQuals will be set to the qualifiers on the 1619 /// argument type. For example, @p TypeQuals would be set to @c 1620 /// QualType::Const for the following copy constructor: 1621 /// 1622 /// @code 1623 /// class X { 1624 /// public: 1625 /// X(const X&); 1626 /// }; 1627 /// @endcode 1628 bool isCopyConstructor(unsigned &TypeQuals) const; 1629 1630 /// isCopyConstructor - Whether this constructor is a copy 1631 /// constructor (C++ [class.copy]p2, which can be used to copy the 1632 /// class. 1633 bool isCopyConstructor() const { 1634 unsigned TypeQuals = 0; 1635 return isCopyConstructor(TypeQuals); 1636 } 1637 1638 /// \brief Determine whether this constructor is a move constructor 1639 /// (C++0x [class.copy]p3), which can be used to move values of the class. 1640 /// 1641 /// \param TypeQuals If this constructor is a move constructor, will be set 1642 /// to the type qualifiers on the referent of the first parameter's type. 1643 bool isMoveConstructor(unsigned &TypeQuals) const; 1644 1645 /// \brief Determine whether this constructor is a move constructor 1646 /// (C++0x [class.copy]p3), which can be used to move values of the class. 1647 bool isMoveConstructor() const { 1648 unsigned TypeQuals = 0; 1649 return isMoveConstructor(TypeQuals); 1650 } 1651 1652 /// \brief Determine whether this is a copy or move constructor. 1653 /// 1654 /// \param TypeQuals Will be set to the type qualifiers on the reference 1655 /// parameter, if in fact this is a copy or move constructor. 1656 bool isCopyOrMoveConstructor(unsigned &TypeQuals) const; 1657 1658 /// \brief Determine whether this a copy or move constructor. 1659 bool isCopyOrMoveConstructor() const { 1660 unsigned Quals; 1661 return isCopyOrMoveConstructor(Quals); 1662 } 1663 1664 /// isConvertingConstructor - Whether this constructor is a 1665 /// converting constructor (C++ [class.conv.ctor]), which can be 1666 /// used for user-defined conversions. 1667 bool isConvertingConstructor(bool AllowExplicit) const; 1668 1669 /// \brief Determine whether this is a member template specialization that 1670 /// would copy the object to itself. Such constructors are never used to copy 1671 /// an object. 1672 bool isSpecializationCopyingObject() const; 1673 1674 /// \brief Get the constructor that this inheriting constructor is based on. 1675 const CXXConstructorDecl *getInheritedConstructor() const; 1676 1677 /// \brief Set the constructor that this inheriting constructor is based on. 1678 void setInheritedConstructor(const CXXConstructorDecl *BaseCtor); 1679 1680 // Implement isa/cast/dyncast/etc. 1681 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1682 static bool classof(const CXXConstructorDecl *D) { return true; } 1683 static bool classofKind(Kind K) { return K == CXXConstructor; } 1684 1685 friend class ASTDeclReader; 1686 friend class ASTDeclWriter; 1687}; 1688 1689/// CXXDestructorDecl - Represents a C++ destructor within a 1690/// class. For example: 1691/// 1692/// @code 1693/// class X { 1694/// public: 1695/// ~X(); // represented by a CXXDestructorDecl. 1696/// }; 1697/// @endcode 1698class CXXDestructorDecl : public CXXMethodDecl { 1699 /// ImplicitlyDefined - Whether this destructor was implicitly 1700 /// defined by the compiler. When false, the destructor was defined 1701 /// by the user. In C++03, this flag will have the same value as 1702 /// Implicit. In C++0x, however, a destructor that is 1703 /// explicitly defaulted (i.e., defined with " = default") will have 1704 /// @c !Implicit && ImplicitlyDefined. 1705 bool ImplicitlyDefined : 1; 1706 1707 FunctionDecl *OperatorDelete; 1708 1709 CXXDestructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1710 const DeclarationNameInfo &NameInfo, 1711 QualType T, TypeSourceInfo *TInfo, 1712 bool isInline, bool isImplicitlyDeclared) 1713 : CXXMethodDecl(CXXDestructor, RD, StartLoc, NameInfo, T, TInfo, false, 1714 SC_None, isInline, SourceLocation()), 1715 ImplicitlyDefined(false), OperatorDelete(0) { 1716 setImplicit(isImplicitlyDeclared); 1717 } 1718 1719public: 1720 static CXXDestructorDecl *Create(ASTContext& C, EmptyShell Empty); 1721 static CXXDestructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1722 SourceLocation StartLoc, 1723 const DeclarationNameInfo &NameInfo, 1724 QualType T, TypeSourceInfo* TInfo, 1725 bool isInline, 1726 bool isImplicitlyDeclared); 1727 1728 /// isImplicitlyDefined - Whether this destructor was implicitly 1729 /// defined. If false, then this destructor was defined by the 1730 /// user. This operation can only be invoked if the destructor has 1731 /// already been defined. 1732 bool isImplicitlyDefined() const { 1733 assert(isThisDeclarationADefinition() && 1734 "Can only get the implicit-definition flag once the destructor has been defined"); 1735 return ImplicitlyDefined; 1736 } 1737 1738 /// setImplicitlyDefined - Set whether this destructor was 1739 /// implicitly defined or not. 1740 void setImplicitlyDefined(bool ID) { 1741 assert(isThisDeclarationADefinition() && 1742 "Can only set the implicit-definition flag once the destructor has been defined"); 1743 ImplicitlyDefined = ID; 1744 } 1745 1746 void setOperatorDelete(FunctionDecl *OD) { OperatorDelete = OD; } 1747 const FunctionDecl *getOperatorDelete() const { return OperatorDelete; } 1748 1749 // Implement isa/cast/dyncast/etc. 1750 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1751 static bool classof(const CXXDestructorDecl *D) { return true; } 1752 static bool classofKind(Kind K) { return K == CXXDestructor; } 1753 1754 friend class ASTDeclReader; 1755 friend class ASTDeclWriter; 1756}; 1757 1758/// CXXConversionDecl - Represents a C++ conversion function within a 1759/// class. For example: 1760/// 1761/// @code 1762/// class X { 1763/// public: 1764/// operator bool(); 1765/// }; 1766/// @endcode 1767class CXXConversionDecl : public CXXMethodDecl { 1768 /// IsExplicitSpecified - Whether this conversion function declaration is 1769 /// marked "explicit", meaning that it can only be applied when the user 1770 /// explicitly wrote a cast. This is a C++0x feature. 1771 bool IsExplicitSpecified : 1; 1772 1773 CXXConversionDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1774 const DeclarationNameInfo &NameInfo, 1775 QualType T, TypeSourceInfo *TInfo, 1776 bool isInline, bool isExplicitSpecified, 1777 SourceLocation EndLocation) 1778 : CXXMethodDecl(CXXConversion, RD, StartLoc, NameInfo, T, TInfo, false, 1779 SC_None, isInline, EndLocation), 1780 IsExplicitSpecified(isExplicitSpecified) { } 1781 1782public: 1783 static CXXConversionDecl *Create(ASTContext &C, EmptyShell Empty); 1784 static CXXConversionDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1785 SourceLocation StartLoc, 1786 const DeclarationNameInfo &NameInfo, 1787 QualType T, TypeSourceInfo *TInfo, 1788 bool isInline, bool isExplicit, 1789 SourceLocation EndLocation); 1790 1791 /// IsExplicitSpecified - Whether this conversion function declaration is 1792 /// marked "explicit", meaning that it can only be applied when the user 1793 /// explicitly wrote a cast. This is a C++0x feature. 1794 bool isExplicitSpecified() const { return IsExplicitSpecified; } 1795 1796 /// isExplicit - Whether this is an explicit conversion operator 1797 /// (C++0x only). Explicit conversion operators are only considered 1798 /// when the user has explicitly written a cast. 1799 bool isExplicit() const { 1800 return cast<CXXConversionDecl>(getFirstDeclaration()) 1801 ->isExplicitSpecified(); 1802 } 1803 1804 /// getConversionType - Returns the type that this conversion 1805 /// function is converting to. 1806 QualType getConversionType() const { 1807 return getType()->getAs<FunctionType>()->getResultType(); 1808 } 1809 1810 // Implement isa/cast/dyncast/etc. 1811 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1812 static bool classof(const CXXConversionDecl *D) { return true; } 1813 static bool classofKind(Kind K) { return K == CXXConversion; } 1814 1815 friend class ASTDeclReader; 1816 friend class ASTDeclWriter; 1817}; 1818 1819/// LinkageSpecDecl - This represents a linkage specification. For example: 1820/// extern "C" void foo(); 1821/// 1822class LinkageSpecDecl : public Decl, public DeclContext { 1823public: 1824 /// LanguageIDs - Used to represent the language in a linkage 1825 /// specification. The values are part of the serialization abi for 1826 /// ASTs and cannot be changed without altering that abi. To help 1827 /// ensure a stable abi for this, we choose the DW_LANG_ encodings 1828 /// from the dwarf standard. 1829 enum LanguageIDs { 1830 lang_c = /* DW_LANG_C */ 0x0002, 1831 lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004 1832 }; 1833private: 1834 /// Language - The language for this linkage specification. 1835 LanguageIDs Language; 1836 /// ExternLoc - The source location for the extern keyword. 1837 SourceLocation ExternLoc; 1838 /// RBraceLoc - The source location for the right brace (if valid). 1839 SourceLocation RBraceLoc; 1840 1841 LinkageSpecDecl(DeclContext *DC, SourceLocation ExternLoc, 1842 SourceLocation LangLoc, LanguageIDs lang, 1843 SourceLocation RBLoc) 1844 : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec), 1845 Language(lang), ExternLoc(ExternLoc), RBraceLoc(RBLoc) { } 1846 1847public: 1848 static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC, 1849 SourceLocation ExternLoc, 1850 SourceLocation LangLoc, LanguageIDs Lang, 1851 SourceLocation RBraceLoc = SourceLocation()); 1852 1853 /// \brief Return the language specified by this linkage specification. 1854 LanguageIDs getLanguage() const { return Language; } 1855 /// \brief Set the language specified by this linkage specification. 1856 void setLanguage(LanguageIDs L) { Language = L; } 1857 1858 /// \brief Determines whether this linkage specification had braces in 1859 /// its syntactic form. 1860 bool hasBraces() const { return RBraceLoc.isValid(); } 1861 1862 SourceLocation getExternLoc() const { return ExternLoc; } 1863 SourceLocation getRBraceLoc() const { return RBraceLoc; } 1864 void setExternLoc(SourceLocation L) { ExternLoc = L; } 1865 void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } 1866 1867 SourceLocation getLocEnd() const { 1868 if (hasBraces()) 1869 return getRBraceLoc(); 1870 // No braces: get the end location of the (only) declaration in context 1871 // (if present). 1872 return decls_empty() ? getLocation() : decls_begin()->getLocEnd(); 1873 } 1874 1875 SourceRange getSourceRange() const { 1876 return SourceRange(ExternLoc, getLocEnd()); 1877 } 1878 1879 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1880 static bool classof(const LinkageSpecDecl *D) { return true; } 1881 static bool classofKind(Kind K) { return K == LinkageSpec; } 1882 static DeclContext *castToDeclContext(const LinkageSpecDecl *D) { 1883 return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D)); 1884 } 1885 static LinkageSpecDecl *castFromDeclContext(const DeclContext *DC) { 1886 return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC)); 1887 } 1888}; 1889 1890/// UsingDirectiveDecl - Represents C++ using-directive. For example: 1891/// 1892/// using namespace std; 1893/// 1894// NB: UsingDirectiveDecl should be Decl not NamedDecl, but we provide 1895// artificial name, for all using-directives in order to store 1896// them in DeclContext effectively. 1897class UsingDirectiveDecl : public NamedDecl { 1898 /// \brief The location of the "using" keyword. 1899 SourceLocation UsingLoc; 1900 1901 /// SourceLocation - Location of 'namespace' token. 1902 SourceLocation NamespaceLoc; 1903 1904 /// \brief The nested-name-specifier that precedes the namespace. 1905 NestedNameSpecifierLoc QualifierLoc; 1906 1907 /// NominatedNamespace - Namespace nominated by using-directive. 1908 NamedDecl *NominatedNamespace; 1909 1910 /// Enclosing context containing both using-directive and nominated 1911 /// namespace. 1912 DeclContext *CommonAncestor; 1913 1914 /// getUsingDirectiveName - Returns special DeclarationName used by 1915 /// using-directives. This is only used by DeclContext for storing 1916 /// UsingDirectiveDecls in its lookup structure. 1917 static DeclarationName getName() { 1918 return DeclarationName::getUsingDirectiveName(); 1919 } 1920 1921 UsingDirectiveDecl(DeclContext *DC, SourceLocation UsingLoc, 1922 SourceLocation NamespcLoc, 1923 NestedNameSpecifierLoc QualifierLoc, 1924 SourceLocation IdentLoc, 1925 NamedDecl *Nominated, 1926 DeclContext *CommonAncestor) 1927 : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc), 1928 NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc), 1929 NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) { } 1930 1931public: 1932 /// \brief Retrieve the nested-name-specifier that qualifies the 1933 /// name of the namespace, with source-location information. 1934 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 1935 1936 /// \brief Retrieve the nested-name-specifier that qualifies the 1937 /// name of the namespace. 1938 NestedNameSpecifier *getQualifier() const { 1939 return QualifierLoc.getNestedNameSpecifier(); 1940 } 1941 1942 NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; } 1943 const NamedDecl *getNominatedNamespaceAsWritten() const { 1944 return NominatedNamespace; 1945 } 1946 1947 /// getNominatedNamespace - Returns namespace nominated by using-directive. 1948 NamespaceDecl *getNominatedNamespace(); 1949 1950 const NamespaceDecl *getNominatedNamespace() const { 1951 return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace(); 1952 } 1953 1954 /// \brief Returns the common ancestor context of this using-directive and 1955 /// its nominated namespace. 1956 DeclContext *getCommonAncestor() { return CommonAncestor; } 1957 const DeclContext *getCommonAncestor() const { return CommonAncestor; } 1958 1959 /// \brief Return the location of the "using" keyword. 1960 SourceLocation getUsingLoc() const { return UsingLoc; } 1961 1962 // FIXME: Could omit 'Key' in name. 1963 /// getNamespaceKeyLocation - Returns location of namespace keyword. 1964 SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; } 1965 1966 /// getIdentLocation - Returns location of identifier. 1967 SourceLocation getIdentLocation() const { return getLocation(); } 1968 1969 static UsingDirectiveDecl *Create(ASTContext &C, DeclContext *DC, 1970 SourceLocation UsingLoc, 1971 SourceLocation NamespaceLoc, 1972 NestedNameSpecifierLoc QualifierLoc, 1973 SourceLocation IdentLoc, 1974 NamedDecl *Nominated, 1975 DeclContext *CommonAncestor); 1976 1977 SourceRange getSourceRange() const { 1978 return SourceRange(UsingLoc, getLocation()); 1979 } 1980 1981 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1982 static bool classof(const UsingDirectiveDecl *D) { return true; } 1983 static bool classofKind(Kind K) { return K == UsingDirective; } 1984 1985 // Friend for getUsingDirectiveName. 1986 friend class DeclContext; 1987 1988 friend class ASTDeclReader; 1989}; 1990 1991/// NamespaceAliasDecl - Represents a C++ namespace alias. For example: 1992/// 1993/// @code 1994/// namespace Foo = Bar; 1995/// @endcode 1996class NamespaceAliasDecl : public NamedDecl { 1997 /// \brief The location of the "namespace" keyword. 1998 SourceLocation NamespaceLoc; 1999 2000 /// IdentLoc - Location of namespace identifier. Accessed by TargetNameLoc. 2001 SourceLocation IdentLoc; 2002 2003 /// \brief The nested-name-specifier that precedes the namespace. 2004 NestedNameSpecifierLoc QualifierLoc; 2005 2006 /// Namespace - The Decl that this alias points to. Can either be a 2007 /// NamespaceDecl or a NamespaceAliasDecl. 2008 NamedDecl *Namespace; 2009 2010 NamespaceAliasDecl(DeclContext *DC, SourceLocation NamespaceLoc, 2011 SourceLocation AliasLoc, IdentifierInfo *Alias, 2012 NestedNameSpecifierLoc QualifierLoc, 2013 SourceLocation IdentLoc, NamedDecl *Namespace) 2014 : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), 2015 NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc), 2016 QualifierLoc(QualifierLoc), Namespace(Namespace) { } 2017 2018 friend class ASTDeclReader; 2019 2020public: 2021 /// \brief Retrieve the nested-name-specifier that qualifies the 2022 /// name of the namespace, with source-location information. 2023 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2024 2025 /// \brief Retrieve the nested-name-specifier that qualifies the 2026 /// name of the namespace. 2027 NestedNameSpecifier *getQualifier() const { 2028 return QualifierLoc.getNestedNameSpecifier(); 2029 } 2030 2031 /// \brief Retrieve the namespace declaration aliased by this directive. 2032 NamespaceDecl *getNamespace() { 2033 if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace)) 2034 return AD->getNamespace(); 2035 2036 return cast<NamespaceDecl>(Namespace); 2037 } 2038 2039 const NamespaceDecl *getNamespace() const { 2040 return const_cast<NamespaceAliasDecl*>(this)->getNamespace(); 2041 } 2042 2043 /// Returns the location of the alias name, i.e. 'foo' in 2044 /// "namespace foo = ns::bar;". 2045 SourceLocation getAliasLoc() const { return getLocation(); } 2046 2047 /// Returns the location of the 'namespace' keyword. 2048 SourceLocation getNamespaceLoc() const { return NamespaceLoc; } 2049 2050 /// Returns the location of the identifier in the named namespace. 2051 SourceLocation getTargetNameLoc() const { return IdentLoc; } 2052 2053 /// \brief Retrieve the namespace that this alias refers to, which 2054 /// may either be a NamespaceDecl or a NamespaceAliasDecl. 2055 NamedDecl *getAliasedNamespace() const { return Namespace; } 2056 2057 static NamespaceAliasDecl *Create(ASTContext &C, DeclContext *DC, 2058 SourceLocation NamespaceLoc, 2059 SourceLocation AliasLoc, 2060 IdentifierInfo *Alias, 2061 NestedNameSpecifierLoc QualifierLoc, 2062 SourceLocation IdentLoc, 2063 NamedDecl *Namespace); 2064 2065 virtual SourceRange getSourceRange() const { 2066 return SourceRange(NamespaceLoc, IdentLoc); 2067 } 2068 2069 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2070 static bool classof(const NamespaceAliasDecl *D) { return true; } 2071 static bool classofKind(Kind K) { return K == NamespaceAlias; } 2072}; 2073 2074/// UsingShadowDecl - Represents a shadow declaration introduced into 2075/// a scope by a (resolved) using declaration. For example, 2076/// 2077/// namespace A { 2078/// void foo(); 2079/// } 2080/// namespace B { 2081/// using A::foo(); // <- a UsingDecl 2082/// // Also creates a UsingShadowDecl for A::foo in B 2083/// } 2084/// 2085class UsingShadowDecl : public NamedDecl { 2086 /// The referenced declaration. 2087 NamedDecl *Underlying; 2088 2089 /// \brief The using declaration which introduced this decl or the next using 2090 /// shadow declaration contained in the aforementioned using declaration. 2091 NamedDecl *UsingOrNextShadow; 2092 friend class UsingDecl; 2093 2094 UsingShadowDecl(DeclContext *DC, SourceLocation Loc, UsingDecl *Using, 2095 NamedDecl *Target) 2096 : NamedDecl(UsingShadow, DC, Loc, DeclarationName()), 2097 Underlying(Target), 2098 UsingOrNextShadow(reinterpret_cast<NamedDecl *>(Using)) { 2099 if (Target) { 2100 setDeclName(Target->getDeclName()); 2101 IdentifierNamespace = Target->getIdentifierNamespace(); 2102 } 2103 setImplicit(); 2104 } 2105 2106public: 2107 static UsingShadowDecl *Create(ASTContext &C, DeclContext *DC, 2108 SourceLocation Loc, UsingDecl *Using, 2109 NamedDecl *Target) { 2110 return new (C) UsingShadowDecl(DC, Loc, Using, Target); 2111 } 2112 2113 /// \brief Gets the underlying declaration which has been brought into the 2114 /// local scope. 2115 NamedDecl *getTargetDecl() const { return Underlying; } 2116 2117 /// \brief Sets the underlying declaration which has been brought into the 2118 /// local scope. 2119 void setTargetDecl(NamedDecl* ND) { 2120 assert(ND && "Target decl is null!"); 2121 Underlying = ND; 2122 IdentifierNamespace = ND->getIdentifierNamespace(); 2123 } 2124 2125 /// \brief Gets the using declaration to which this declaration is tied. 2126 UsingDecl *getUsingDecl() const; 2127 2128 /// \brief The next using shadow declaration contained in the shadow decl 2129 /// chain of the using declaration which introduced this decl. 2130 UsingShadowDecl *getNextUsingShadowDecl() const { 2131 return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow); 2132 } 2133 2134 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2135 static bool classof(const UsingShadowDecl *D) { return true; } 2136 static bool classofKind(Kind K) { return K == Decl::UsingShadow; } 2137 2138 friend class ASTDeclReader; 2139 friend class ASTDeclWriter; 2140}; 2141 2142/// UsingDecl - Represents a C++ using-declaration. For example: 2143/// using someNameSpace::someIdentifier; 2144class UsingDecl : public NamedDecl { 2145 /// \brief The source location of the "using" location itself. 2146 SourceLocation UsingLocation; 2147 2148 /// \brief The nested-name-specifier that precedes the name. 2149 NestedNameSpecifierLoc QualifierLoc; 2150 2151 /// DNLoc - Provides source/type location info for the 2152 /// declaration name embedded in the ValueDecl base class. 2153 DeclarationNameLoc DNLoc; 2154 2155 /// \brief The first shadow declaration of the shadow decl chain associated 2156 /// with this using declaration. 2157 UsingShadowDecl *FirstUsingShadow; 2158 2159 // \brief Has 'typename' keyword. 2160 bool IsTypeName; 2161 2162 UsingDecl(DeclContext *DC, SourceLocation UL, 2163 NestedNameSpecifierLoc QualifierLoc, 2164 const DeclarationNameInfo &NameInfo, bool IsTypeNameArg) 2165 : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()), 2166 UsingLocation(UL), QualifierLoc(QualifierLoc), 2167 DNLoc(NameInfo.getInfo()), FirstUsingShadow(0),IsTypeName(IsTypeNameArg) { 2168 } 2169 2170public: 2171 /// \brief Returns the source location of the "using" keyword. 2172 SourceLocation getUsingLocation() const { return UsingLocation; } 2173 2174 /// \brief Set the source location of the 'using' keyword. 2175 void setUsingLocation(SourceLocation L) { UsingLocation = L; } 2176 2177 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2178 /// with source-location information. 2179 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2180 2181 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2182 NestedNameSpecifier *getQualifier() const { 2183 return QualifierLoc.getNestedNameSpecifier(); 2184 } 2185 2186 DeclarationNameInfo getNameInfo() const { 2187 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2188 } 2189 2190 /// \brief Return true if the using declaration has 'typename'. 2191 bool isTypeName() const { return IsTypeName; } 2192 2193 /// \brief Sets whether the using declaration has 'typename'. 2194 void setTypeName(bool TN) { IsTypeName = TN; } 2195 2196 /// \brief Iterates through the using shadow declarations assosiated with 2197 /// this using declaration. 2198 class shadow_iterator { 2199 /// \brief The current using shadow declaration. 2200 UsingShadowDecl *Current; 2201 2202 public: 2203 typedef UsingShadowDecl* value_type; 2204 typedef UsingShadowDecl* reference; 2205 typedef UsingShadowDecl* pointer; 2206 typedef std::forward_iterator_tag iterator_category; 2207 typedef std::ptrdiff_t difference_type; 2208 2209 shadow_iterator() : Current(0) { } 2210 explicit shadow_iterator(UsingShadowDecl *C) : Current(C) { } 2211 2212 reference operator*() const { return Current; } 2213 pointer operator->() const { return Current; } 2214 2215 shadow_iterator& operator++() { 2216 Current = Current->getNextUsingShadowDecl(); 2217 return *this; 2218 } 2219 2220 shadow_iterator operator++(int) { 2221 shadow_iterator tmp(*this); 2222 ++(*this); 2223 return tmp; 2224 } 2225 2226 friend bool operator==(shadow_iterator x, shadow_iterator y) { 2227 return x.Current == y.Current; 2228 } 2229 friend bool operator!=(shadow_iterator x, shadow_iterator y) { 2230 return x.Current != y.Current; 2231 } 2232 }; 2233 2234 shadow_iterator shadow_begin() const { 2235 return shadow_iterator(FirstUsingShadow); 2236 } 2237 shadow_iterator shadow_end() const { return shadow_iterator(); } 2238 2239 /// \brief Return the number of shadowed declarations associated with this 2240 /// using declaration. 2241 unsigned shadow_size() const { 2242 return std::distance(shadow_begin(), shadow_end()); 2243 } 2244 2245 void addShadowDecl(UsingShadowDecl *S); 2246 void removeShadowDecl(UsingShadowDecl *S); 2247 2248 static UsingDecl *Create(ASTContext &C, DeclContext *DC, 2249 SourceLocation UsingL, 2250 NestedNameSpecifierLoc QualifierLoc, 2251 const DeclarationNameInfo &NameInfo, 2252 bool IsTypeNameArg); 2253 2254 SourceRange getSourceRange() const { 2255 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2256 } 2257 2258 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2259 static bool classof(const UsingDecl *D) { return true; } 2260 static bool classofKind(Kind K) { return K == Using; } 2261 2262 friend class ASTDeclReader; 2263 friend class ASTDeclWriter; 2264}; 2265 2266/// UnresolvedUsingValueDecl - Represents a dependent using 2267/// declaration which was not marked with 'typename'. Unlike 2268/// non-dependent using declarations, these *only* bring through 2269/// non-types; otherwise they would break two-phase lookup. 2270/// 2271/// template <class T> class A : public Base<T> { 2272/// using Base<T>::foo; 2273/// }; 2274class UnresolvedUsingValueDecl : public ValueDecl { 2275 /// \brief The source location of the 'using' keyword 2276 SourceLocation UsingLocation; 2277 2278 /// \brief The nested-name-specifier that precedes the name. 2279 NestedNameSpecifierLoc QualifierLoc; 2280 2281 /// DNLoc - Provides source/type location info for the 2282 /// declaration name embedded in the ValueDecl base class. 2283 DeclarationNameLoc DNLoc; 2284 2285 UnresolvedUsingValueDecl(DeclContext *DC, QualType Ty, 2286 SourceLocation UsingLoc, 2287 NestedNameSpecifierLoc QualifierLoc, 2288 const DeclarationNameInfo &NameInfo) 2289 : ValueDecl(UnresolvedUsingValue, DC, 2290 NameInfo.getLoc(), NameInfo.getName(), Ty), 2291 UsingLocation(UsingLoc), QualifierLoc(QualifierLoc), 2292 DNLoc(NameInfo.getInfo()) 2293 { } 2294 2295public: 2296 /// \brief Returns the source location of the 'using' keyword. 2297 SourceLocation getUsingLoc() const { return UsingLocation; } 2298 2299 /// \brief Set the source location of the 'using' keyword. 2300 void setUsingLoc(SourceLocation L) { UsingLocation = L; } 2301 2302 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2303 /// with source-location information. 2304 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2305 2306 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2307 NestedNameSpecifier *getQualifier() const { 2308 return QualifierLoc.getNestedNameSpecifier(); 2309 } 2310 2311 DeclarationNameInfo getNameInfo() const { 2312 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2313 } 2314 2315 static UnresolvedUsingValueDecl * 2316 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2317 NestedNameSpecifierLoc QualifierLoc, 2318 const DeclarationNameInfo &NameInfo); 2319 2320 SourceRange getSourceRange() const { 2321 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2322 } 2323 2324 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2325 static bool classof(const UnresolvedUsingValueDecl *D) { return true; } 2326 static bool classofKind(Kind K) { return K == UnresolvedUsingValue; } 2327 2328 friend class ASTDeclReader; 2329 friend class ASTDeclWriter; 2330}; 2331 2332/// UnresolvedUsingTypenameDecl - Represents a dependent using 2333/// declaration which was marked with 'typename'. 2334/// 2335/// template <class T> class A : public Base<T> { 2336/// using typename Base<T>::foo; 2337/// }; 2338/// 2339/// The type associated with a unresolved using typename decl is 2340/// currently always a typename type. 2341class UnresolvedUsingTypenameDecl : public TypeDecl { 2342 /// \brief The source location of the 'using' keyword 2343 SourceLocation UsingLocation; 2344 2345 /// \brief The source location of the 'typename' keyword 2346 SourceLocation TypenameLocation; 2347 2348 /// \brief The nested-name-specifier that precedes the name. 2349 NestedNameSpecifierLoc QualifierLoc; 2350 2351 UnresolvedUsingTypenameDecl(DeclContext *DC, SourceLocation UsingLoc, 2352 SourceLocation TypenameLoc, 2353 NestedNameSpecifierLoc QualifierLoc, 2354 SourceLocation TargetNameLoc, 2355 IdentifierInfo *TargetName) 2356 : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName, 2357 UsingLoc), 2358 TypenameLocation(TypenameLoc), QualifierLoc(QualifierLoc) { } 2359 2360 friend class ASTDeclReader; 2361 2362public: 2363 /// \brief Returns the source location of the 'using' keyword. 2364 SourceLocation getUsingLoc() const { return getLocStart(); } 2365 2366 /// \brief Returns the source location of the 'typename' keyword. 2367 SourceLocation getTypenameLoc() const { return TypenameLocation; } 2368 2369 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2370 /// with source-location information. 2371 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2372 2373 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2374 NestedNameSpecifier *getQualifier() const { 2375 return QualifierLoc.getNestedNameSpecifier(); 2376 } 2377 2378 static UnresolvedUsingTypenameDecl * 2379 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2380 SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc, 2381 SourceLocation TargetNameLoc, DeclarationName TargetName); 2382 2383 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2384 static bool classof(const UnresolvedUsingTypenameDecl *D) { return true; } 2385 static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; } 2386}; 2387 2388/// StaticAssertDecl - Represents a C++0x static_assert declaration. 2389class StaticAssertDecl : public Decl { 2390 Expr *AssertExpr; 2391 StringLiteral *Message; 2392 SourceLocation RParenLoc; 2393 2394 StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc, 2395 Expr *assertexpr, StringLiteral *message, 2396 SourceLocation RParenLoc) 2397 : Decl(StaticAssert, DC, StaticAssertLoc), AssertExpr(assertexpr), 2398 Message(message), RParenLoc(RParenLoc) { } 2399 2400public: 2401 static StaticAssertDecl *Create(ASTContext &C, DeclContext *DC, 2402 SourceLocation StaticAssertLoc, 2403 Expr *AssertExpr, StringLiteral *Message, 2404 SourceLocation RParenLoc); 2405 2406 Expr *getAssertExpr() { return AssertExpr; } 2407 const Expr *getAssertExpr() const { return AssertExpr; } 2408 2409 StringLiteral *getMessage() { return Message; } 2410 const StringLiteral *getMessage() const { return Message; } 2411 2412 SourceLocation getRParenLoc() const { return RParenLoc; } 2413 void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2414 2415 SourceRange getSourceRange() const { 2416 return SourceRange(getLocation(), getRParenLoc()); 2417 } 2418 2419 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2420 static bool classof(StaticAssertDecl *D) { return true; } 2421 static bool classofKind(Kind K) { return K == StaticAssert; } 2422 2423 friend class ASTDeclReader; 2424}; 2425 2426/// Insertion operator for diagnostics. This allows sending AccessSpecifier's 2427/// into a diagnostic with <<. 2428const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 2429 AccessSpecifier AS); 2430 2431} // end namespace clang 2432 2433#endif 2434