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/ExprCXX.h" 20 #include "clang/AST/Decl.h" 21 #include "clang/AST/TypeLoc.h" 22 #include "clang/AST/UnresolvedSet.h" 23 #include "llvm/ADT/DenseMap.h" 24 #include "llvm/ADT/PointerIntPair.h" 25 #include "llvm/ADT/SmallPtrSet.h" 26 #include "llvm/Support/Compiler.h" 27 28 namespace clang { 29 30 class ClassTemplateDecl; 31 class ClassTemplateSpecializationDecl; 32 class CXXBasePath; 33 class CXXBasePaths; 34 class CXXConstructorDecl; 35 class CXXConversionDecl; 36 class CXXDestructorDecl; 37 class CXXMethodDecl; 38 class CXXRecordDecl; 39 class CXXMemberLookupCriteria; 40 class CXXFinalOverriderMap; 41 class CXXIndirectPrimaryBaseSet; 42 class FriendDecl; 43 class LambdaExpr; 44 45 /// \brief Represents any kind of function declaration, whether it is a 46 /// concrete function or a function template. 47 class AnyFunctionDecl { 48 NamedDecl *Function; 49 50 AnyFunctionDecl(NamedDecl *ND) : Function(ND) { } 51 52 public: 53 AnyFunctionDecl(FunctionDecl *FD) : Function(FD) { } 54 AnyFunctionDecl(FunctionTemplateDecl *FTD); 55 56 /// \brief Implicily converts any function or function template into a 57 /// named declaration. 58 operator NamedDecl *() const { return Function; } 59 60 /// \brief Retrieve the underlying function or function template. 61 NamedDecl *get() const { return Function; } 62 63 static AnyFunctionDecl getFromNamedDecl(NamedDecl *ND) { 64 return AnyFunctionDecl(ND); 65 } 66 }; 67 68 } // end namespace clang 69 70 namespace llvm { 71 /// Implement simplify_type for AnyFunctionDecl, so that we can dyn_cast from 72 /// AnyFunctionDecl to any function or function template declaration. 73 template<> struct simplify_type<const ::clang::AnyFunctionDecl> { 74 typedef ::clang::NamedDecl* SimpleType; 75 static SimpleType getSimplifiedValue(const ::clang::AnyFunctionDecl &Val) { 76 return Val; 77 } 78 }; 79 template<> struct simplify_type< ::clang::AnyFunctionDecl> 80 : public simplify_type<const ::clang::AnyFunctionDecl> {}; 81 82 // Provide PointerLikeTypeTraits for non-cvr pointers. 83 template<> 84 class PointerLikeTypeTraits< ::clang::AnyFunctionDecl> { 85 public: 86 static inline void *getAsVoidPointer(::clang::AnyFunctionDecl F) { 87 return F.get(); 88 } 89 static inline ::clang::AnyFunctionDecl getFromVoidPointer(void *P) { 90 return ::clang::AnyFunctionDecl::getFromNamedDecl( 91 static_cast< ::clang::NamedDecl*>(P)); 92 } 93 94 enum { NumLowBitsAvailable = 2 }; 95 }; 96 97 } // end namespace llvm 98 99 namespace clang { 100 101 /// AccessSpecDecl - An access specifier followed by colon ':'. 102 /// 103 /// An objects of this class represents sugar for the syntactic occurrence 104 /// of an access specifier followed by a colon in the list of member 105 /// specifiers of a C++ class definition. 106 /// 107 /// Note that they do not represent other uses of access specifiers, 108 /// such as those occurring in a list of base specifiers. 109 /// Also note that this class has nothing to do with so-called 110 /// "access declarations" (C++98 11.3 [class.access.dcl]). 111 class AccessSpecDecl : public Decl { 112 virtual void anchor(); 113 /// ColonLoc - The location of the ':'. 114 SourceLocation ColonLoc; 115 116 AccessSpecDecl(AccessSpecifier AS, DeclContext *DC, 117 SourceLocation ASLoc, SourceLocation ColonLoc) 118 : Decl(AccessSpec, DC, ASLoc), ColonLoc(ColonLoc) { 119 setAccess(AS); 120 } 121 AccessSpecDecl(EmptyShell Empty) 122 : Decl(AccessSpec, Empty) { } 123 public: 124 /// getAccessSpecifierLoc - The location of the access specifier. 125 SourceLocation getAccessSpecifierLoc() const { return getLocation(); } 126 /// setAccessSpecifierLoc - Sets the location of the access specifier. 127 void setAccessSpecifierLoc(SourceLocation ASLoc) { setLocation(ASLoc); } 128 129 /// getColonLoc - The location of the colon following the access specifier. 130 SourceLocation getColonLoc() const { return ColonLoc; } 131 /// setColonLoc - Sets the location of the colon. 132 void setColonLoc(SourceLocation CLoc) { ColonLoc = CLoc; } 133 134 SourceRange getSourceRange() const LLVM_READONLY { 135 return SourceRange(getAccessSpecifierLoc(), getColonLoc()); 136 } 137 138 static AccessSpecDecl *Create(ASTContext &C, AccessSpecifier AS, 139 DeclContext *DC, SourceLocation ASLoc, 140 SourceLocation ColonLoc) { 141 return new (C) AccessSpecDecl(AS, DC, ASLoc, ColonLoc); 142 } 143 static AccessSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID); 144 145 // Implement isa/cast/dyncast/etc. 146 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 147 static bool classof(const AccessSpecDecl *D) { return true; } 148 static bool classofKind(Kind K) { return K == AccessSpec; } 149 }; 150 151 152 /// CXXBaseSpecifier - A base class of a C++ class. 153 /// 154 /// Each CXXBaseSpecifier represents a single, direct base class (or 155 /// struct) of a C++ class (or struct). It specifies the type of that 156 /// base class, whether it is a virtual or non-virtual base, and what 157 /// level of access (public, protected, private) is used for the 158 /// derivation. For example: 159 /// 160 /// @code 161 /// class A { }; 162 /// class B { }; 163 /// class C : public virtual A, protected B { }; 164 /// @endcode 165 /// 166 /// In this code, C will have two CXXBaseSpecifiers, one for "public 167 /// virtual A" and the other for "protected B". 168 class CXXBaseSpecifier { 169 /// Range - The source code range that covers the full base 170 /// specifier, including the "virtual" (if present) and access 171 /// specifier (if present). 172 SourceRange Range; 173 174 /// \brief The source location of the ellipsis, if this is a pack 175 /// expansion. 176 SourceLocation EllipsisLoc; 177 178 /// Virtual - Whether this is a virtual base class or not. 179 bool Virtual : 1; 180 181 /// BaseOfClass - Whether this is the base of a class (true) or of a 182 /// struct (false). This determines the mapping from the access 183 /// specifier as written in the source code to the access specifier 184 /// used for semantic analysis. 185 bool BaseOfClass : 1; 186 187 /// Access - Access specifier as written in the source code (which 188 /// may be AS_none). The actual type of data stored here is an 189 /// AccessSpecifier, but we use "unsigned" here to work around a 190 /// VC++ bug. 191 unsigned Access : 2; 192 193 /// InheritConstructors - Whether the class contains a using declaration 194 /// to inherit the named class's constructors. 195 bool InheritConstructors : 1; 196 197 /// BaseTypeInfo - The type of the base class. This will be a class or struct 198 /// (or a typedef of such). The source code range does not include the 199 /// "virtual" or access specifier. 200 TypeSourceInfo *BaseTypeInfo; 201 202 public: 203 CXXBaseSpecifier() { } 204 205 CXXBaseSpecifier(SourceRange R, bool V, bool BC, AccessSpecifier A, 206 TypeSourceInfo *TInfo, SourceLocation EllipsisLoc) 207 : Range(R), EllipsisLoc(EllipsisLoc), Virtual(V), BaseOfClass(BC), 208 Access(A), InheritConstructors(false), BaseTypeInfo(TInfo) { } 209 210 /// getSourceRange - Retrieves the source range that contains the 211 /// entire base specifier. 212 SourceRange getSourceRange() const LLVM_READONLY { return Range; } 213 SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); } 214 SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); } 215 216 /// isVirtual - Determines whether the base class is a virtual base 217 /// class (or not). 218 bool isVirtual() const { return Virtual; } 219 220 /// \brief Determine whether this base class is a base of a class declared 221 /// with the 'class' keyword (vs. one declared with the 'struct' keyword). 222 bool isBaseOfClass() const { return BaseOfClass; } 223 224 /// \brief Determine whether this base specifier is a pack expansion. 225 bool isPackExpansion() const { return EllipsisLoc.isValid(); } 226 227 /// \brief Determine whether this base class's constructors get inherited. 228 bool getInheritConstructors() const { return InheritConstructors; } 229 230 /// \brief Set that this base class's constructors should be inherited. 231 void setInheritConstructors(bool Inherit = true) { 232 InheritConstructors = Inherit; 233 } 234 235 /// \brief For a pack expansion, determine the location of the ellipsis. 236 SourceLocation getEllipsisLoc() const { 237 return EllipsisLoc; 238 } 239 240 /// getAccessSpecifier - Returns the access specifier for this base 241 /// specifier. This is the actual base specifier as used for 242 /// semantic analysis, so the result can never be AS_none. To 243 /// retrieve the access specifier as written in the source code, use 244 /// getAccessSpecifierAsWritten(). 245 AccessSpecifier getAccessSpecifier() const { 246 if ((AccessSpecifier)Access == AS_none) 247 return BaseOfClass? AS_private : AS_public; 248 else 249 return (AccessSpecifier)Access; 250 } 251 252 /// getAccessSpecifierAsWritten - Retrieves the access specifier as 253 /// written in the source code (which may mean that no access 254 /// specifier was explicitly written). Use getAccessSpecifier() to 255 /// retrieve the access specifier for use in semantic analysis. 256 AccessSpecifier getAccessSpecifierAsWritten() const { 257 return (AccessSpecifier)Access; 258 } 259 260 /// getType - Retrieves the type of the base class. This type will 261 /// always be an unqualified class type. 262 QualType getType() const { return BaseTypeInfo->getType(); } 263 264 /// getTypeLoc - Retrieves the type and source location of the base class. 265 TypeSourceInfo *getTypeSourceInfo() const { return BaseTypeInfo; } 266 }; 267 268 /// CXXRecordDecl - Represents a C++ struct/union/class. 269 /// FIXME: This class will disappear once we've properly taught RecordDecl 270 /// to deal with C++-specific things. 271 class CXXRecordDecl : public RecordDecl { 272 273 friend void TagDecl::startDefinition(); 274 275 struct DefinitionData { 276 DefinitionData(CXXRecordDecl *D); 277 278 /// UserDeclaredConstructor - True when this class has a 279 /// user-declared constructor. 280 bool UserDeclaredConstructor : 1; 281 282 /// UserDeclaredCopyConstructor - True when this class has a 283 /// user-declared copy constructor. 284 bool UserDeclaredCopyConstructor : 1; 285 286 /// UserDeclareMoveConstructor - True when this class has a 287 /// user-declared move constructor. 288 bool UserDeclaredMoveConstructor : 1; 289 290 /// UserDeclaredCopyAssignment - True when this class has a 291 /// user-declared copy assignment operator. 292 bool UserDeclaredCopyAssignment : 1; 293 294 /// UserDeclareMoveAssignment - True when this class has a 295 /// user-declared move assignment. 296 bool UserDeclaredMoveAssignment : 1; 297 298 /// UserDeclaredDestructor - True when this class has a 299 /// user-declared destructor. 300 bool UserDeclaredDestructor : 1; 301 302 /// Aggregate - True when this class is an aggregate. 303 bool Aggregate : 1; 304 305 /// PlainOldData - True when this class is a POD-type. 306 bool PlainOldData : 1; 307 308 /// Empty - true when this class is empty for traits purposes, 309 /// i.e. has no data members other than 0-width bit-fields, has no 310 /// virtual function/base, and doesn't inherit from a non-empty 311 /// class. Doesn't take union-ness into account. 312 bool Empty : 1; 313 314 /// Polymorphic - True when this class is polymorphic, i.e. has at 315 /// least one virtual member or derives from a polymorphic class. 316 bool Polymorphic : 1; 317 318 /// Abstract - True when this class is abstract, i.e. has at least 319 /// one pure virtual function, (that can come from a base class). 320 bool Abstract : 1; 321 322 /// IsStandardLayout - True when this class has standard layout. 323 /// 324 /// C++0x [class]p7. A standard-layout class is a class that: 325 /// * has no non-static data members of type non-standard-layout class (or 326 /// array of such types) or reference, 327 /// * has no virtual functions (10.3) and no virtual base classes (10.1), 328 /// * has the same access control (Clause 11) for all non-static data 329 /// members 330 /// * has no non-standard-layout base classes, 331 /// * either has no non-static data members in the most derived class and at 332 /// most one base class with non-static data members, or has no base 333 /// classes with non-static data members, and 334 /// * has no base classes of the same type as the first non-static data 335 /// member. 336 bool IsStandardLayout : 1; 337 338 /// HasNoNonEmptyBases - True when there are no non-empty base classes. 339 /// 340 /// This is a helper bit of state used to implement IsStandardLayout more 341 /// efficiently. 342 bool HasNoNonEmptyBases : 1; 343 344 /// HasPrivateFields - True when there are private non-static data members. 345 bool HasPrivateFields : 1; 346 347 /// HasProtectedFields - True when there are protected non-static data 348 /// members. 349 bool HasProtectedFields : 1; 350 351 /// HasPublicFields - True when there are private non-static data members. 352 bool HasPublicFields : 1; 353 354 /// \brief True if this class (or any subobject) has mutable fields. 355 bool HasMutableFields : 1; 356 357 /// \brief True if there no non-field members declared by the user. 358 bool HasOnlyCMembers : 1; 359 360 /// HasTrivialDefaultConstructor - True when, if this class has a default 361 /// constructor, this default constructor is trivial. 362 /// 363 /// C++0x [class.ctor]p5 364 /// A default constructor is trivial if it is not user-provided and if 365 /// -- its class has no virtual functions and no virtual base classes, 366 /// and 367 /// -- no non-static data member of its class has a 368 /// brace-or-equal-initializer, and 369 /// -- all the direct base classes of its class have trivial 370 /// default constructors, and 371 /// -- for all the nonstatic data members of its class that are of class 372 /// type (or array thereof), each such class has a trivial 373 /// default constructor. 374 bool HasTrivialDefaultConstructor : 1; 375 376 /// HasConstexprNonCopyMoveConstructor - True when this class has at least 377 /// one user-declared constexpr constructor which is neither the copy nor 378 /// move constructor. 379 bool HasConstexprNonCopyMoveConstructor : 1; 380 381 /// DefaultedDefaultConstructorIsConstexpr - True if a defaulted default 382 /// constructor for this class would be constexpr. 383 bool DefaultedDefaultConstructorIsConstexpr : 1; 384 385 /// DefaultedCopyConstructorIsConstexpr - True if a defaulted copy 386 /// constructor for this class would be constexpr. 387 bool DefaultedCopyConstructorIsConstexpr : 1; 388 389 /// DefaultedMoveConstructorIsConstexpr - True if a defaulted move 390 /// constructor for this class would be constexpr. 391 bool DefaultedMoveConstructorIsConstexpr : 1; 392 393 /// HasConstexprDefaultConstructor - True if this class has a constexpr 394 /// default constructor (either user-declared or implicitly declared). 395 bool HasConstexprDefaultConstructor : 1; 396 397 /// HasConstexprCopyConstructor - True if this class has a constexpr copy 398 /// constructor (either user-declared or implicitly declared). 399 bool HasConstexprCopyConstructor : 1; 400 401 /// HasConstexprMoveConstructor - True if this class has a constexpr move 402 /// constructor (either user-declared or implicitly declared). 403 bool HasConstexprMoveConstructor : 1; 404 405 /// HasTrivialCopyConstructor - True when this class has a trivial copy 406 /// constructor. 407 /// 408 /// C++0x [class.copy]p13: 409 /// A copy/move constructor for class X is trivial if it is neither 410 /// user-provided and if 411 /// -- class X has no virtual functions and no virtual base classes, and 412 /// -- the constructor selected to copy/move each direct base class 413 /// subobject is trivial, and 414 /// -- for each non-static data member of X that is of class type (or an 415 /// array thereof), the constructor selected to copy/move that member 416 /// is trivial; 417 /// otherwise the copy/move constructor is non-trivial. 418 bool HasTrivialCopyConstructor : 1; 419 420 /// HasTrivialMoveConstructor - True when this class has a trivial move 421 /// constructor. 422 /// 423 /// C++0x [class.copy]p13: 424 /// A copy/move constructor for class X is trivial if it is neither 425 /// user-provided and if 426 /// -- class X has no virtual functions and no virtual base classes, and 427 /// -- the constructor selected to copy/move each direct base class 428 /// subobject is trivial, and 429 /// -- for each non-static data member of X that is of class type (or an 430 /// array thereof), the constructor selected to copy/move that member 431 /// is trivial; 432 /// otherwise the copy/move constructor is non-trivial. 433 bool HasTrivialMoveConstructor : 1; 434 435 /// HasTrivialCopyAssignment - True when this class has a trivial copy 436 /// assignment operator. 437 /// 438 /// C++0x [class.copy]p27: 439 /// A copy/move assignment operator for class X is trivial if it is 440 /// neither user-provided nor deleted and if 441 /// -- class X has no virtual functions and no virtual base classes, and 442 /// -- the assignment operator selected to copy/move each direct base 443 /// class subobject is trivial, and 444 /// -- for each non-static data member of X that is of class type (or an 445 /// array thereof), the assignment operator selected to copy/move 446 /// that member is trivial; 447 /// otherwise the copy/move assignment operator is non-trivial. 448 bool HasTrivialCopyAssignment : 1; 449 450 /// HasTrivialMoveAssignment - True when this class has a trivial move 451 /// assignment operator. 452 /// 453 /// C++0x [class.copy]p27: 454 /// A copy/move assignment operator for class X is trivial if it is 455 /// neither user-provided nor deleted and if 456 /// -- class X has no virtual functions and no virtual base classes, and 457 /// -- the assignment operator selected to copy/move each direct base 458 /// class subobject is trivial, and 459 /// -- for each non-static data member of X that is of class type (or an 460 /// array thereof), the assignment operator selected to copy/move 461 /// that member is trivial; 462 /// otherwise the copy/move assignment operator is non-trivial. 463 bool HasTrivialMoveAssignment : 1; 464 465 /// HasTrivialDestructor - True when this class has a trivial destructor. 466 /// 467 /// C++ [class.dtor]p3. A destructor is trivial if it is an 468 /// implicitly-declared destructor and if: 469 /// * all of the direct base classes of its class have trivial destructors 470 /// and 471 /// * for all of the non-static data members of its class that are of class 472 /// type (or array thereof), each such class has a trivial destructor. 473 bool HasTrivialDestructor : 1; 474 475 /// HasIrrelevantDestructor - True when this class has a destructor with no 476 /// semantic effect. 477 bool HasIrrelevantDestructor : 1; 478 479 /// HasNonLiteralTypeFieldsOrBases - True when this class contains at least 480 /// one non-static data member or base class of non-literal or volatile 481 /// type. 482 bool HasNonLiteralTypeFieldsOrBases : 1; 483 484 /// ComputedVisibleConversions - True when visible conversion functions are 485 /// already computed and are available. 486 bool ComputedVisibleConversions : 1; 487 488 /// \brief Whether we have a C++0x user-provided default constructor (not 489 /// explicitly deleted or defaulted). 490 bool UserProvidedDefaultConstructor : 1; 491 492 /// \brief Whether we have already declared the default constructor. 493 bool DeclaredDefaultConstructor : 1; 494 495 /// \brief Whether we have already declared the copy constructor. 496 bool DeclaredCopyConstructor : 1; 497 498 /// \brief Whether we have already declared the move constructor. 499 bool DeclaredMoveConstructor : 1; 500 501 /// \brief Whether we have already declared the copy-assignment operator. 502 bool DeclaredCopyAssignment : 1; 503 504 /// \brief Whether we have already declared the move-assignment operator. 505 bool DeclaredMoveAssignment : 1; 506 507 /// \brief Whether we have already declared a destructor within the class. 508 bool DeclaredDestructor : 1; 509 510 /// \brief Whether an implicit move constructor was attempted to be declared 511 /// but would have been deleted. 512 bool FailedImplicitMoveConstructor : 1; 513 514 /// \brief Whether an implicit move assignment operator was attempted to be 515 /// declared but would have been deleted. 516 bool FailedImplicitMoveAssignment : 1; 517 518 /// \brief Whether this class describes a C++ lambda. 519 bool IsLambda : 1; 520 521 /// NumBases - The number of base class specifiers in Bases. 522 unsigned NumBases; 523 524 /// NumVBases - The number of virtual base class specifiers in VBases. 525 unsigned NumVBases; 526 527 /// Bases - Base classes of this class. 528 /// FIXME: This is wasted space for a union. 529 LazyCXXBaseSpecifiersPtr Bases; 530 531 /// VBases - direct and indirect virtual base classes of this class. 532 LazyCXXBaseSpecifiersPtr VBases; 533 534 /// Conversions - Overload set containing the conversion functions 535 /// of this C++ class (but not its inherited conversion 536 /// functions). Each of the entries in this overload set is a 537 /// CXXConversionDecl. 538 UnresolvedSet<4> Conversions; 539 540 /// VisibleConversions - Overload set containing the conversion 541 /// functions of this C++ class and all those inherited conversion 542 /// functions that are visible in this class. Each of the entries 543 /// in this overload set is a CXXConversionDecl or a 544 /// FunctionTemplateDecl. 545 UnresolvedSet<4> VisibleConversions; 546 547 /// Definition - The declaration which defines this record. 548 CXXRecordDecl *Definition; 549 550 /// FirstFriend - The first friend declaration in this class, or 551 /// null if there aren't any. This is actually currently stored 552 /// in reverse order. 553 FriendDecl *FirstFriend; 554 555 /// \brief Retrieve the set of direct base classes. 556 CXXBaseSpecifier *getBases() const { 557 return Bases.get(Definition->getASTContext().getExternalSource()); 558 } 559 560 /// \brief Retrieve the set of virtual base classes. 561 CXXBaseSpecifier *getVBases() const { 562 return VBases.get(Definition->getASTContext().getExternalSource()); 563 } 564 } *DefinitionData; 565 566 /// \brief Describes a C++ closure type (generated by a lambda expression). 567 struct LambdaDefinitionData : public DefinitionData { 568 typedef LambdaExpr::Capture Capture; 569 570 LambdaDefinitionData(CXXRecordDecl *D, bool Dependent) 571 : DefinitionData(D), Dependent(Dependent), NumCaptures(0), 572 NumExplicitCaptures(0), ManglingNumber(0), ContextDecl(0), Captures(0) 573 { 574 IsLambda = true; 575 } 576 577 /// \brief Whether this lambda is known to be dependent, even if its 578 /// context isn't dependent. 579 /// 580 /// A lambda with a non-dependent context can be dependent if it occurs 581 /// within the default argument of a function template, because the 582 /// lambda will have been created with the enclosing context as its 583 /// declaration context, rather than function. This is an unfortunate 584 /// artifact of having to parse the default arguments before 585 unsigned Dependent : 1; 586 587 /// \brief The number of captures in this lambda. 588 unsigned NumCaptures : 16; 589 590 /// \brief The number of explicit captures in this lambda. 591 unsigned NumExplicitCaptures : 15; 592 593 /// \brief The number used to indicate this lambda expression for name 594 /// mangling in the Itanium C++ ABI. 595 unsigned ManglingNumber; 596 597 /// \brief The declaration that provides context for this lambda, if the 598 /// actual DeclContext does not suffice. This is used for lambdas that 599 /// occur within default arguments of function parameters within the class 600 /// or within a data member initializer. 601 Decl *ContextDecl; 602 603 /// \brief The list of captures, both explicit and implicit, for this 604 /// lambda. 605 Capture *Captures; 606 }; 607 608 struct DefinitionData &data() { 609 assert(DefinitionData && "queried property of class with no definition"); 610 return *DefinitionData; 611 } 612 613 const struct DefinitionData &data() const { 614 assert(DefinitionData && "queried property of class with no definition"); 615 return *DefinitionData; 616 } 617 618 struct LambdaDefinitionData &getLambdaData() const { 619 assert(DefinitionData && "queried property of lambda with no definition"); 620 assert(DefinitionData->IsLambda && 621 "queried lambda property of non-lambda class"); 622 return static_cast<LambdaDefinitionData &>(*DefinitionData); 623 } 624 625 /// \brief The template or declaration that this declaration 626 /// describes or was instantiated from, respectively. 627 /// 628 /// For non-templates, this value will be NULL. For record 629 /// declarations that describe a class template, this will be a 630 /// pointer to a ClassTemplateDecl. For member 631 /// classes of class template specializations, this will be the 632 /// MemberSpecializationInfo referring to the member class that was 633 /// instantiated or specialized. 634 llvm::PointerUnion<ClassTemplateDecl*, MemberSpecializationInfo*> 635 TemplateOrInstantiation; 636 637 friend class DeclContext; 638 friend class LambdaExpr; 639 640 /// \brief Notify the class that member has been added. 641 /// 642 /// This routine helps maintain information about the class based on which 643 /// members have been added. It will be invoked by DeclContext::addDecl() 644 /// whenever a member is added to this record. 645 void addedMember(Decl *D); 646 647 void markedVirtualFunctionPure(); 648 friend void FunctionDecl::setPure(bool); 649 650 friend class ASTNodeImporter; 651 652 protected: 653 CXXRecordDecl(Kind K, TagKind TK, DeclContext *DC, 654 SourceLocation StartLoc, SourceLocation IdLoc, 655 IdentifierInfo *Id, CXXRecordDecl *PrevDecl); 656 657 public: 658 /// base_class_iterator - Iterator that traverses the base classes 659 /// of a class. 660 typedef CXXBaseSpecifier* base_class_iterator; 661 662 /// base_class_const_iterator - Iterator that traverses the base 663 /// classes of a class. 664 typedef const CXXBaseSpecifier* base_class_const_iterator; 665 666 /// reverse_base_class_iterator = Iterator that traverses the base classes 667 /// of a class in reverse order. 668 typedef std::reverse_iterator<base_class_iterator> 669 reverse_base_class_iterator; 670 671 /// reverse_base_class_iterator = Iterator that traverses the base classes 672 /// of a class in reverse order. 673 typedef std::reverse_iterator<base_class_const_iterator> 674 reverse_base_class_const_iterator; 675 676 virtual CXXRecordDecl *getCanonicalDecl() { 677 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 678 } 679 virtual const CXXRecordDecl *getCanonicalDecl() const { 680 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 681 } 682 683 const CXXRecordDecl *getPreviousDecl() const { 684 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 685 } 686 CXXRecordDecl *getPreviousDecl() { 687 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 688 } 689 690 const CXXRecordDecl *getMostRecentDecl() const { 691 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 692 } 693 CXXRecordDecl *getMostRecentDecl() { 694 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 695 } 696 697 CXXRecordDecl *getDefinition() const { 698 if (!DefinitionData) return 0; 699 return data().Definition; 700 } 701 702 bool hasDefinition() const { return DefinitionData != 0; } 703 704 static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC, 705 SourceLocation StartLoc, SourceLocation IdLoc, 706 IdentifierInfo *Id, CXXRecordDecl* PrevDecl=0, 707 bool DelayTypeCreation = false); 708 static CXXRecordDecl *CreateLambda(const ASTContext &C, DeclContext *DC, 709 SourceLocation Loc, bool DependentLambda); 710 static CXXRecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID); 711 712 bool isDynamicClass() const { 713 return data().Polymorphic || data().NumVBases != 0; 714 } 715 716 /// setBases - Sets the base classes of this struct or class. 717 void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases); 718 719 /// getNumBases - Retrieves the number of base classes of this 720 /// class. 721 unsigned getNumBases() const { return data().NumBases; } 722 723 base_class_iterator bases_begin() { return data().getBases(); } 724 base_class_const_iterator bases_begin() const { return data().getBases(); } 725 base_class_iterator bases_end() { return bases_begin() + data().NumBases; } 726 base_class_const_iterator bases_end() const { 727 return bases_begin() + data().NumBases; 728 } 729 reverse_base_class_iterator bases_rbegin() { 730 return reverse_base_class_iterator(bases_end()); 731 } 732 reverse_base_class_const_iterator bases_rbegin() const { 733 return reverse_base_class_const_iterator(bases_end()); 734 } 735 reverse_base_class_iterator bases_rend() { 736 return reverse_base_class_iterator(bases_begin()); 737 } 738 reverse_base_class_const_iterator bases_rend() const { 739 return reverse_base_class_const_iterator(bases_begin()); 740 } 741 742 /// getNumVBases - Retrieves the number of virtual base classes of this 743 /// class. 744 unsigned getNumVBases() const { return data().NumVBases; } 745 746 base_class_iterator vbases_begin() { return data().getVBases(); } 747 base_class_const_iterator vbases_begin() const { return data().getVBases(); } 748 base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; } 749 base_class_const_iterator vbases_end() const { 750 return vbases_begin() + data().NumVBases; 751 } 752 reverse_base_class_iterator vbases_rbegin() { 753 return reverse_base_class_iterator(vbases_end()); 754 } 755 reverse_base_class_const_iterator vbases_rbegin() const { 756 return reverse_base_class_const_iterator(vbases_end()); 757 } 758 reverse_base_class_iterator vbases_rend() { 759 return reverse_base_class_iterator(vbases_begin()); 760 } 761 reverse_base_class_const_iterator vbases_rend() const { 762 return reverse_base_class_const_iterator(vbases_begin()); 763 } 764 765 /// \brief Determine whether this class has any dependent base classes. 766 bool hasAnyDependentBases() const; 767 768 /// Iterator access to method members. The method iterator visits 769 /// all method members of the class, including non-instance methods, 770 /// special methods, etc. 771 typedef specific_decl_iterator<CXXMethodDecl> method_iterator; 772 773 /// method_begin - Method begin iterator. Iterates in the order the methods 774 /// were declared. 775 method_iterator method_begin() const { 776 return method_iterator(decls_begin()); 777 } 778 /// method_end - Method end iterator. 779 method_iterator method_end() const { 780 return method_iterator(decls_end()); 781 } 782 783 /// Iterator access to constructor members. 784 typedef specific_decl_iterator<CXXConstructorDecl> ctor_iterator; 785 786 ctor_iterator ctor_begin() const { 787 return ctor_iterator(decls_begin()); 788 } 789 ctor_iterator ctor_end() const { 790 return ctor_iterator(decls_end()); 791 } 792 793 /// An iterator over friend declarations. All of these are defined 794 /// in DeclFriend.h. 795 class friend_iterator; 796 friend_iterator friend_begin() const; 797 friend_iterator friend_end() const; 798 void pushFriendDecl(FriendDecl *FD); 799 800 /// Determines whether this record has any friends. 801 bool hasFriends() const { 802 return data().FirstFriend != 0; 803 } 804 805 /// \brief Determine if we need to declare a default constructor for 806 /// this class. 807 /// 808 /// This value is used for lazy creation of default constructors. 809 bool needsImplicitDefaultConstructor() const { 810 return !data().UserDeclaredConstructor && 811 !data().DeclaredDefaultConstructor; 812 } 813 814 /// hasDeclaredDefaultConstructor - Whether this class's default constructor 815 /// has been declared (either explicitly or implicitly). 816 bool hasDeclaredDefaultConstructor() const { 817 return data().DeclaredDefaultConstructor; 818 } 819 820 /// hasConstCopyConstructor - Determines whether this class has a 821 /// copy constructor that accepts a const-qualified argument. 822 bool hasConstCopyConstructor() const; 823 824 /// getCopyConstructor - Returns the copy constructor for this class 825 CXXConstructorDecl *getCopyConstructor(unsigned TypeQuals) const; 826 827 /// getMoveConstructor - Returns the move constructor for this class 828 CXXConstructorDecl *getMoveConstructor() const; 829 830 /// \brief Retrieve the copy-assignment operator for this class, if available. 831 /// 832 /// This routine attempts to find the copy-assignment operator for this 833 /// class, using a simplistic form of overload resolution. 834 /// 835 /// \param ArgIsConst Whether the argument to the copy-assignment operator 836 /// is const-qualified. 837 /// 838 /// \returns The copy-assignment operator that can be invoked, or NULL if 839 /// a unique copy-assignment operator could not be found. 840 CXXMethodDecl *getCopyAssignmentOperator(bool ArgIsConst) const; 841 842 /// getMoveAssignmentOperator - Returns the move assignment operator for this 843 /// class 844 CXXMethodDecl *getMoveAssignmentOperator() const; 845 846 /// hasUserDeclaredConstructor - Whether this class has any 847 /// user-declared constructors. When true, a default constructor 848 /// will not be implicitly declared. 849 bool hasUserDeclaredConstructor() const { 850 return data().UserDeclaredConstructor; 851 } 852 853 /// hasUserProvidedDefaultconstructor - Whether this class has a 854 /// user-provided default constructor per C++0x. 855 bool hasUserProvidedDefaultConstructor() const { 856 return data().UserProvidedDefaultConstructor; 857 } 858 859 /// hasUserDeclaredCopyConstructor - Whether this class has a 860 /// user-declared copy constructor. When false, a copy constructor 861 /// will be implicitly declared. 862 bool hasUserDeclaredCopyConstructor() const { 863 return data().UserDeclaredCopyConstructor; 864 } 865 866 /// \brief Determine whether this class has had its copy constructor 867 /// declared, either via the user or via an implicit declaration. 868 /// 869 /// This value is used for lazy creation of copy constructors. 870 bool hasDeclaredCopyConstructor() const { 871 return data().DeclaredCopyConstructor; 872 } 873 874 /// hasUserDeclaredMoveOperation - Whether this class has a user- 875 /// declared move constructor or assignment operator. When false, a 876 /// move constructor and assignment operator may be implicitly declared. 877 bool hasUserDeclaredMoveOperation() const { 878 return data().UserDeclaredMoveConstructor || 879 data().UserDeclaredMoveAssignment; 880 } 881 882 /// \brief Determine whether this class has had a move constructor 883 /// declared by the user. 884 bool hasUserDeclaredMoveConstructor() const { 885 return data().UserDeclaredMoveConstructor; 886 } 887 888 /// \brief Determine whether this class has had a move constructor 889 /// declared. 890 bool hasDeclaredMoveConstructor() const { 891 return data().DeclaredMoveConstructor; 892 } 893 894 /// \brief Determine whether implicit move constructor generation for this 895 /// class has failed before. 896 bool hasFailedImplicitMoveConstructor() const { 897 return data().FailedImplicitMoveConstructor; 898 } 899 900 /// \brief Set whether implicit move constructor generation for this class 901 /// has failed before. 902 void setFailedImplicitMoveConstructor(bool Failed = true) { 903 data().FailedImplicitMoveConstructor = Failed; 904 } 905 906 /// \brief Determine whether this class should get an implicit move 907 /// constructor or if any existing special member function inhibits this. 908 /// 909 /// Covers all bullets of C++0x [class.copy]p9 except the last, that the 910 /// constructor wouldn't be deleted, which is only looked up from a cached 911 /// result. 912 bool needsImplicitMoveConstructor() const { 913 return !hasFailedImplicitMoveConstructor() && 914 !hasDeclaredMoveConstructor() && 915 !hasUserDeclaredCopyConstructor() && 916 !hasUserDeclaredCopyAssignment() && 917 !hasUserDeclaredMoveAssignment() && 918 !hasUserDeclaredDestructor(); 919 } 920 921 /// hasUserDeclaredCopyAssignment - Whether this class has a 922 /// user-declared copy assignment operator. When false, a copy 923 /// assigment operator will be implicitly declared. 924 bool hasUserDeclaredCopyAssignment() const { 925 return data().UserDeclaredCopyAssignment; 926 } 927 928 /// \brief Determine whether this class has had its copy assignment operator 929 /// declared, either via the user or via an implicit declaration. 930 /// 931 /// This value is used for lazy creation of copy assignment operators. 932 bool hasDeclaredCopyAssignment() const { 933 return data().DeclaredCopyAssignment; 934 } 935 936 /// \brief Determine whether this class has had a move assignment 937 /// declared by the user. 938 bool hasUserDeclaredMoveAssignment() const { 939 return data().UserDeclaredMoveAssignment; 940 } 941 942 /// hasDeclaredMoveAssignment - Whether this class has a 943 /// declared move assignment operator. 944 bool hasDeclaredMoveAssignment() const { 945 return data().DeclaredMoveAssignment; 946 } 947 948 /// \brief Determine whether implicit move assignment generation for this 949 /// class has failed before. 950 bool hasFailedImplicitMoveAssignment() const { 951 return data().FailedImplicitMoveAssignment; 952 } 953 954 /// \brief Set whether implicit move assignment generation for this class 955 /// has failed before. 956 void setFailedImplicitMoveAssignment(bool Failed = true) { 957 data().FailedImplicitMoveAssignment = Failed; 958 } 959 960 /// \brief Determine whether this class should get an implicit move 961 /// assignment operator or if any existing special member function inhibits 962 /// this. 963 /// 964 /// Covers all bullets of C++0x [class.copy]p20 except the last, that the 965 /// constructor wouldn't be deleted. 966 bool needsImplicitMoveAssignment() const { 967 return !hasFailedImplicitMoveAssignment() && 968 !hasDeclaredMoveAssignment() && 969 !hasUserDeclaredCopyConstructor() && 970 !hasUserDeclaredCopyAssignment() && 971 !hasUserDeclaredMoveConstructor() && 972 !hasUserDeclaredDestructor(); 973 } 974 975 /// hasUserDeclaredDestructor - Whether this class has a 976 /// user-declared destructor. When false, a destructor will be 977 /// implicitly declared. 978 bool hasUserDeclaredDestructor() const { 979 return data().UserDeclaredDestructor; 980 } 981 982 /// \brief Determine whether this class has had its destructor declared, 983 /// either via the user or via an implicit declaration. 984 /// 985 /// This value is used for lazy creation of destructors. 986 bool hasDeclaredDestructor() const { return data().DeclaredDestructor; } 987 988 /// \brief Determine whether this class describes a lambda function object. 989 bool isLambda() const { return hasDefinition() && data().IsLambda; } 990 991 /// \brief For a closure type, retrieve the mapping from captured 992 /// variables and this to the non-static data members that store the 993 /// values or references of the captures. 994 /// 995 /// \param Captures Will be populated with the mapping from captured 996 /// variables to the corresponding fields. 997 /// 998 /// \param ThisCapture Will be set to the field declaration for the 999 /// 'this' capture. 1000 void getCaptureFields(llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures, 1001 FieldDecl *&ThisCapture) const; 1002 1003 typedef const LambdaExpr::Capture* capture_const_iterator; 1004 capture_const_iterator captures_begin() const { 1005 return isLambda() ? getLambdaData().Captures : NULL; 1006 } 1007 capture_const_iterator captures_end() const { 1008 return isLambda() ? captures_begin() + getLambdaData().NumCaptures : NULL; 1009 } 1010 1011 /// getConversions - Retrieve the overload set containing all of the 1012 /// conversion functions in this class. 1013 UnresolvedSetImpl *getConversionFunctions() { 1014 return &data().Conversions; 1015 } 1016 const UnresolvedSetImpl *getConversionFunctions() const { 1017 return &data().Conversions; 1018 } 1019 1020 typedef UnresolvedSetImpl::iterator conversion_iterator; 1021 conversion_iterator conversion_begin() const { 1022 return getConversionFunctions()->begin(); 1023 } 1024 conversion_iterator conversion_end() const { 1025 return getConversionFunctions()->end(); 1026 } 1027 1028 /// Removes a conversion function from this class. The conversion 1029 /// function must currently be a member of this class. Furthermore, 1030 /// this class must currently be in the process of being defined. 1031 void removeConversion(const NamedDecl *Old); 1032 1033 /// getVisibleConversionFunctions - get all conversion functions visible 1034 /// in current class; including conversion function templates. 1035 const UnresolvedSetImpl *getVisibleConversionFunctions(); 1036 1037 /// isAggregate - Whether this class is an aggregate (C++ 1038 /// [dcl.init.aggr]), which is a class with no user-declared 1039 /// constructors, no private or protected non-static data members, 1040 /// no base classes, and no virtual functions (C++ [dcl.init.aggr]p1). 1041 bool isAggregate() const { return data().Aggregate; } 1042 1043 /// isPOD - Whether this class is a POD-type (C++ [class]p4), which is a class 1044 /// that is an aggregate that has no non-static non-POD data members, no 1045 /// reference data members, no user-defined copy assignment operator and no 1046 /// user-defined destructor. 1047 bool isPOD() const { return data().PlainOldData; } 1048 1049 /// \brief True if this class is C-like, without C++-specific features, e.g. 1050 /// it contains only public fields, no bases, tag kind is not 'class', etc. 1051 bool isCLike() const; 1052 1053 /// isEmpty - Whether this class is empty (C++0x [meta.unary.prop]), which 1054 /// means it has a virtual function, virtual base, data member (other than 1055 /// 0-width bit-field) or inherits from a non-empty class. Does NOT include 1056 /// a check for union-ness. 1057 bool isEmpty() const { return data().Empty; } 1058 1059 /// isPolymorphic - Whether this class is polymorphic (C++ [class.virtual]), 1060 /// which means that the class contains or inherits a virtual function. 1061 bool isPolymorphic() const { return data().Polymorphic; } 1062 1063 /// isAbstract - Whether this class is abstract (C++ [class.abstract]), 1064 /// which means that the class contains or inherits a pure virtual function. 1065 bool isAbstract() const { return data().Abstract; } 1066 1067 /// isStandardLayout - Whether this class has standard layout 1068 /// (C++ [class]p7) 1069 bool isStandardLayout() const { return data().IsStandardLayout; } 1070 1071 /// \brief Whether this class, or any of its class subobjects, contains a 1072 /// mutable field. 1073 bool hasMutableFields() const { return data().HasMutableFields; } 1074 1075 /// hasTrivialDefaultConstructor - Whether this class has a trivial default 1076 /// constructor (C++11 [class.ctor]p5). 1077 bool hasTrivialDefaultConstructor() const { 1078 return data().HasTrivialDefaultConstructor && 1079 (!data().UserDeclaredConstructor || 1080 data().DeclaredDefaultConstructor); 1081 } 1082 1083 /// hasConstexprNonCopyMoveConstructor - Whether this class has at least one 1084 /// constexpr constructor other than the copy or move constructors. 1085 bool hasConstexprNonCopyMoveConstructor() const { 1086 return data().HasConstexprNonCopyMoveConstructor || 1087 (!hasUserDeclaredConstructor() && 1088 defaultedDefaultConstructorIsConstexpr()); 1089 } 1090 1091 /// defaultedDefaultConstructorIsConstexpr - Whether a defaulted default 1092 /// constructor for this class would be constexpr. 1093 bool defaultedDefaultConstructorIsConstexpr() const { 1094 return data().DefaultedDefaultConstructorIsConstexpr; 1095 } 1096 1097 /// defaultedCopyConstructorIsConstexpr - Whether a defaulted copy 1098 /// constructor for this class would be constexpr. 1099 bool defaultedCopyConstructorIsConstexpr() const { 1100 return data().DefaultedCopyConstructorIsConstexpr; 1101 } 1102 1103 /// defaultedMoveConstructorIsConstexpr - Whether a defaulted move 1104 /// constructor for this class would be constexpr. 1105 bool defaultedMoveConstructorIsConstexpr() const { 1106 return data().DefaultedMoveConstructorIsConstexpr; 1107 } 1108 1109 /// hasConstexprDefaultConstructor - Whether this class has a constexpr 1110 /// default constructor. 1111 bool hasConstexprDefaultConstructor() const { 1112 return data().HasConstexprDefaultConstructor || 1113 (!data().UserDeclaredConstructor && 1114 data().DefaultedDefaultConstructorIsConstexpr && isLiteral()); 1115 } 1116 1117 /// hasConstexprCopyConstructor - Whether this class has a constexpr copy 1118 /// constructor. 1119 bool hasConstexprCopyConstructor() const { 1120 return data().HasConstexprCopyConstructor || 1121 (!data().DeclaredCopyConstructor && 1122 data().DefaultedCopyConstructorIsConstexpr && isLiteral()); 1123 } 1124 1125 /// hasConstexprMoveConstructor - Whether this class has a constexpr move 1126 /// constructor. 1127 bool hasConstexprMoveConstructor() const { 1128 return data().HasConstexprMoveConstructor || 1129 (needsImplicitMoveConstructor() && 1130 data().DefaultedMoveConstructorIsConstexpr && isLiteral()); 1131 } 1132 1133 // hasTrivialCopyConstructor - Whether this class has a trivial copy 1134 // constructor (C++ [class.copy]p6, C++0x [class.copy]p13) 1135 bool hasTrivialCopyConstructor() const { 1136 return data().HasTrivialCopyConstructor; 1137 } 1138 1139 // hasTrivialMoveConstructor - Whether this class has a trivial move 1140 // constructor (C++0x [class.copy]p13) 1141 bool hasTrivialMoveConstructor() const { 1142 return data().HasTrivialMoveConstructor; 1143 } 1144 1145 // hasTrivialCopyAssignment - Whether this class has a trivial copy 1146 // assignment operator (C++ [class.copy]p11, C++0x [class.copy]p27) 1147 bool hasTrivialCopyAssignment() const { 1148 return data().HasTrivialCopyAssignment; 1149 } 1150 1151 // hasTrivialMoveAssignment - Whether this class has a trivial move 1152 // assignment operator (C++0x [class.copy]p27) 1153 bool hasTrivialMoveAssignment() const { 1154 return data().HasTrivialMoveAssignment; 1155 } 1156 1157 // hasTrivialDestructor - Whether this class has a trivial destructor 1158 // (C++ [class.dtor]p3) 1159 bool hasTrivialDestructor() const { return data().HasTrivialDestructor; } 1160 1161 // hasIrrelevantDestructor - Whether this class has a destructor which has no 1162 // semantic effect. Any such destructor will be trivial, public, defaulted 1163 // and not deleted, and will call only irrelevant destructors. 1164 bool hasIrrelevantDestructor() const { 1165 return data().HasIrrelevantDestructor; 1166 } 1167 1168 // hasNonLiteralTypeFieldsOrBases - Whether this class has a non-literal or 1169 // volatile type non-static data member or base class. 1170 bool hasNonLiteralTypeFieldsOrBases() const { 1171 return data().HasNonLiteralTypeFieldsOrBases; 1172 } 1173 1174 // isTriviallyCopyable - Whether this class is considered trivially copyable 1175 // (C++0x [class]p6). 1176 bool isTriviallyCopyable() const; 1177 1178 // isTrivial - Whether this class is considered trivial 1179 // 1180 // C++0x [class]p6 1181 // A trivial class is a class that has a trivial default constructor and 1182 // is trivially copiable. 1183 bool isTrivial() const { 1184 return isTriviallyCopyable() && hasTrivialDefaultConstructor(); 1185 } 1186 1187 // isLiteral - Whether this class is a literal type. 1188 // 1189 // C++11 [basic.types]p10 1190 // A class type that has all the following properties: 1191 // -- it has a trivial destructor 1192 // -- every constructor call and full-expression in the 1193 // brace-or-equal-intializers for non-static data members (if any) is 1194 // a constant expression. 1195 // -- it is an aggregate type or has at least one constexpr constructor or 1196 // constructor template that is not a copy or move constructor, and 1197 // -- all of its non-static data members and base classes are of literal 1198 // types 1199 // 1200 // We resolve DR1361 by ignoring the second bullet. We resolve DR1452 by 1201 // treating types with trivial default constructors as literal types. 1202 bool isLiteral() const { 1203 return hasTrivialDestructor() && 1204 (isAggregate() || hasConstexprNonCopyMoveConstructor() || 1205 hasTrivialDefaultConstructor()) && 1206 !hasNonLiteralTypeFieldsOrBases(); 1207 } 1208 1209 /// \brief If this record is an instantiation of a member class, 1210 /// retrieves the member class from which it was instantiated. 1211 /// 1212 /// This routine will return non-NULL for (non-templated) member 1213 /// classes of class templates. For example, given: 1214 /// 1215 /// \code 1216 /// template<typename T> 1217 /// struct X { 1218 /// struct A { }; 1219 /// }; 1220 /// \endcode 1221 /// 1222 /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl 1223 /// whose parent is the class template specialization X<int>. For 1224 /// this declaration, getInstantiatedFromMemberClass() will return 1225 /// the CXXRecordDecl X<T>::A. When a complete definition of 1226 /// X<int>::A is required, it will be instantiated from the 1227 /// declaration returned by getInstantiatedFromMemberClass(). 1228 CXXRecordDecl *getInstantiatedFromMemberClass() const; 1229 1230 /// \brief If this class is an instantiation of a member class of a 1231 /// class template specialization, retrieves the member specialization 1232 /// information. 1233 MemberSpecializationInfo *getMemberSpecializationInfo() const; 1234 1235 /// \brief Specify that this record is an instantiation of the 1236 /// member class RD. 1237 void setInstantiationOfMemberClass(CXXRecordDecl *RD, 1238 TemplateSpecializationKind TSK); 1239 1240 /// \brief Retrieves the class template that is described by this 1241 /// class declaration. 1242 /// 1243 /// Every class template is represented as a ClassTemplateDecl and a 1244 /// CXXRecordDecl. The former contains template properties (such as 1245 /// the template parameter lists) while the latter contains the 1246 /// actual description of the template's 1247 /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the 1248 /// CXXRecordDecl that from a ClassTemplateDecl, while 1249 /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from 1250 /// a CXXRecordDecl. 1251 ClassTemplateDecl *getDescribedClassTemplate() const { 1252 return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl*>(); 1253 } 1254 1255 void setDescribedClassTemplate(ClassTemplateDecl *Template) { 1256 TemplateOrInstantiation = Template; 1257 } 1258 1259 /// \brief Determine whether this particular class is a specialization or 1260 /// instantiation of a class template or member class of a class template, 1261 /// and how it was instantiated or specialized. 1262 TemplateSpecializationKind getTemplateSpecializationKind() const; 1263 1264 /// \brief Set the kind of specialization or template instantiation this is. 1265 void setTemplateSpecializationKind(TemplateSpecializationKind TSK); 1266 1267 /// getDestructor - Returns the destructor decl for this class. 1268 CXXDestructorDecl *getDestructor() const; 1269 1270 /// isLocalClass - If the class is a local class [class.local], returns 1271 /// the enclosing function declaration. 1272 const FunctionDecl *isLocalClass() const { 1273 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext())) 1274 return RD->isLocalClass(); 1275 1276 return dyn_cast<FunctionDecl>(getDeclContext()); 1277 } 1278 1279 /// \brief Determine whether this class is derived from the class \p Base. 1280 /// 1281 /// This routine only determines whether this class is derived from \p Base, 1282 /// but does not account for factors that may make a Derived -> Base class 1283 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1284 /// base class subobjects. 1285 /// 1286 /// \param Base the base class we are searching for. 1287 /// 1288 /// \returns true if this class is derived from Base, false otherwise. 1289 bool isDerivedFrom(const CXXRecordDecl *Base) const; 1290 1291 /// \brief Determine whether this class is derived from the type \p Base. 1292 /// 1293 /// This routine only determines whether this class is derived from \p Base, 1294 /// but does not account for factors that may make a Derived -> Base class 1295 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1296 /// base class subobjects. 1297 /// 1298 /// \param Base the base class we are searching for. 1299 /// 1300 /// \param Paths will contain the paths taken from the current class to the 1301 /// given \p Base class. 1302 /// 1303 /// \returns true if this class is derived from Base, false otherwise. 1304 /// 1305 /// \todo add a separate paramaeter to configure IsDerivedFrom, rather than 1306 /// tangling input and output in \p Paths 1307 bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const; 1308 1309 /// \brief Determine whether this class is virtually derived from 1310 /// the class \p Base. 1311 /// 1312 /// This routine only determines whether this class is virtually 1313 /// derived from \p Base, but does not account for factors that may 1314 /// make a Derived -> Base class ill-formed, such as 1315 /// private/protected inheritance or multiple, ambiguous base class 1316 /// subobjects. 1317 /// 1318 /// \param Base the base class we are searching for. 1319 /// 1320 /// \returns true if this class is virtually derived from Base, 1321 /// false otherwise. 1322 bool isVirtuallyDerivedFrom(CXXRecordDecl *Base) const; 1323 1324 /// \brief Determine whether this class is provably not derived from 1325 /// the type \p Base. 1326 bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const; 1327 1328 /// \brief Function type used by forallBases() as a callback. 1329 /// 1330 /// \param Base the definition of the base class 1331 /// 1332 /// \returns true if this base matched the search criteria 1333 typedef bool ForallBasesCallback(const CXXRecordDecl *BaseDefinition, 1334 void *UserData); 1335 1336 /// \brief Determines if the given callback holds for all the direct 1337 /// or indirect base classes of this type. 1338 /// 1339 /// The class itself does not count as a base class. This routine 1340 /// returns false if the class has non-computable base classes. 1341 /// 1342 /// \param AllowShortCircuit if false, forces the callback to be called 1343 /// for every base class, even if a dependent or non-matching base was 1344 /// found. 1345 bool forallBases(ForallBasesCallback *BaseMatches, void *UserData, 1346 bool AllowShortCircuit = true) const; 1347 1348 /// \brief Function type used by lookupInBases() to determine whether a 1349 /// specific base class subobject matches the lookup criteria. 1350 /// 1351 /// \param Specifier the base-class specifier that describes the inheritance 1352 /// from the base class we are trying to match. 1353 /// 1354 /// \param Path the current path, from the most-derived class down to the 1355 /// base named by the \p Specifier. 1356 /// 1357 /// \param UserData a single pointer to user-specified data, provided to 1358 /// lookupInBases(). 1359 /// 1360 /// \returns true if this base matched the search criteria, false otherwise. 1361 typedef bool BaseMatchesCallback(const CXXBaseSpecifier *Specifier, 1362 CXXBasePath &Path, 1363 void *UserData); 1364 1365 /// \brief Look for entities within the base classes of this C++ class, 1366 /// transitively searching all base class subobjects. 1367 /// 1368 /// This routine uses the callback function \p BaseMatches to find base 1369 /// classes meeting some search criteria, walking all base class subobjects 1370 /// and populating the given \p Paths structure with the paths through the 1371 /// inheritance hierarchy that resulted in a match. On a successful search, 1372 /// the \p Paths structure can be queried to retrieve the matching paths and 1373 /// to determine if there were any ambiguities. 1374 /// 1375 /// \param BaseMatches callback function used to determine whether a given 1376 /// base matches the user-defined search criteria. 1377 /// 1378 /// \param UserData user data pointer that will be provided to \p BaseMatches. 1379 /// 1380 /// \param Paths used to record the paths from this class to its base class 1381 /// subobjects that match the search criteria. 1382 /// 1383 /// \returns true if there exists any path from this class to a base class 1384 /// subobject that matches the search criteria. 1385 bool lookupInBases(BaseMatchesCallback *BaseMatches, void *UserData, 1386 CXXBasePaths &Paths) const; 1387 1388 /// \brief Base-class lookup callback that determines whether the given 1389 /// base class specifier refers to a specific class declaration. 1390 /// 1391 /// This callback can be used with \c lookupInBases() to determine whether 1392 /// a given derived class has is a base class subobject of a particular type. 1393 /// The user data pointer should refer to the canonical CXXRecordDecl of the 1394 /// base class that we are searching for. 1395 static bool FindBaseClass(const CXXBaseSpecifier *Specifier, 1396 CXXBasePath &Path, void *BaseRecord); 1397 1398 /// \brief Base-class lookup callback that determines whether the 1399 /// given base class specifier refers to a specific class 1400 /// declaration and describes virtual derivation. 1401 /// 1402 /// This callback can be used with \c lookupInBases() to determine 1403 /// whether a given derived class has is a virtual base class 1404 /// subobject of a particular type. The user data pointer should 1405 /// refer to the canonical CXXRecordDecl of the base class that we 1406 /// are searching for. 1407 static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier, 1408 CXXBasePath &Path, void *BaseRecord); 1409 1410 /// \brief Base-class lookup callback that determines whether there exists 1411 /// a tag with the given name. 1412 /// 1413 /// This callback can be used with \c lookupInBases() to find tag members 1414 /// of the given name within a C++ class hierarchy. The user data pointer 1415 /// is an opaque \c DeclarationName pointer. 1416 static bool FindTagMember(const CXXBaseSpecifier *Specifier, 1417 CXXBasePath &Path, void *Name); 1418 1419 /// \brief Base-class lookup callback that determines whether there exists 1420 /// a member with the given name. 1421 /// 1422 /// This callback can be used with \c lookupInBases() to find members 1423 /// of the given name within a C++ class hierarchy. The user data pointer 1424 /// is an opaque \c DeclarationName pointer. 1425 static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier, 1426 CXXBasePath &Path, void *Name); 1427 1428 /// \brief Base-class lookup callback that determines whether there exists 1429 /// a member with the given name that can be used in a nested-name-specifier. 1430 /// 1431 /// This callback can be used with \c lookupInBases() to find membes of 1432 /// the given name within a C++ class hierarchy that can occur within 1433 /// nested-name-specifiers. 1434 static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier, 1435 CXXBasePath &Path, 1436 void *UserData); 1437 1438 /// \brief Retrieve the final overriders for each virtual member 1439 /// function in the class hierarchy where this class is the 1440 /// most-derived class in the class hierarchy. 1441 void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const; 1442 1443 /// \brief Get the indirect primary bases for this class. 1444 void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const; 1445 1446 /// viewInheritance - Renders and displays an inheritance diagram 1447 /// for this C++ class and all of its base classes (transitively) using 1448 /// GraphViz. 1449 void viewInheritance(ASTContext& Context) const; 1450 1451 /// MergeAccess - Calculates the access of a decl that is reached 1452 /// along a path. 1453 static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, 1454 AccessSpecifier DeclAccess) { 1455 assert(DeclAccess != AS_none); 1456 if (DeclAccess == AS_private) return AS_none; 1457 return (PathAccess > DeclAccess ? PathAccess : DeclAccess); 1458 } 1459 1460 /// \brief Indicates that the definition of this class is now complete. 1461 virtual void completeDefinition(); 1462 1463 /// \brief Indicates that the definition of this class is now complete, 1464 /// and provides a final overrider map to help determine 1465 /// 1466 /// \param FinalOverriders The final overrider map for this class, which can 1467 /// be provided as an optimization for abstract-class checking. If NULL, 1468 /// final overriders will be computed if they are needed to complete the 1469 /// definition. 1470 void completeDefinition(CXXFinalOverriderMap *FinalOverriders); 1471 1472 /// \brief Determine whether this class may end up being abstract, even though 1473 /// it is not yet known to be abstract. 1474 /// 1475 /// \returns true if this class is not known to be abstract but has any 1476 /// base classes that are abstract. In this case, \c completeDefinition() 1477 /// will need to compute final overriders to determine whether the class is 1478 /// actually abstract. 1479 bool mayBeAbstract() const; 1480 1481 /// \brief If this is the closure type of a lambda expression, retrieve the 1482 /// number to be used for name mangling in the Itanium C++ ABI. 1483 /// 1484 /// Zero indicates that this closure type has internal linkage, so the 1485 /// mangling number does not matter, while a non-zero value indicates which 1486 /// lambda expression this is in this particular context. 1487 unsigned getLambdaManglingNumber() const { 1488 assert(isLambda() && "Not a lambda closure type!"); 1489 return getLambdaData().ManglingNumber; 1490 } 1491 1492 /// \brief Retrieve the declaration that provides additional context for a 1493 /// lambda, when the normal declaration context is not specific enough. 1494 /// 1495 /// Certain contexts (default arguments of in-class function parameters and 1496 /// the initializers of data members) have separate name mangling rules for 1497 /// lambdas within the Itanium C++ ABI. For these cases, this routine provides 1498 /// the declaration in which the lambda occurs, e.g., the function parameter 1499 /// or the non-static data member. Otherwise, it returns NULL to imply that 1500 /// the declaration context suffices. 1501 Decl *getLambdaContextDecl() const { 1502 assert(isLambda() && "Not a lambda closure type!"); 1503 return getLambdaData().ContextDecl; 1504 } 1505 1506 /// \brief Set the mangling number and context declaration for a lambda 1507 /// class. 1508 void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl) { 1509 getLambdaData().ManglingNumber = ManglingNumber; 1510 getLambdaData().ContextDecl = ContextDecl; 1511 } 1512 1513 /// \brief Determine whether this lambda expression was known to be dependent 1514 /// at the time it was created, even if its context does not appear to be 1515 /// dependent. 1516 /// 1517 /// This flag is a workaround for an issue with parsing, where default 1518 /// arguments are parsed before their enclosing function declarations have 1519 /// been created. This means that any lambda expressions within those 1520 /// default arguments will have as their DeclContext the context enclosing 1521 /// the function declaration, which may be non-dependent even when the 1522 /// function declaration itself is dependent. This flag indicates when we 1523 /// know that the lambda is dependent despite that. 1524 bool isDependentLambda() const { 1525 return isLambda() && getLambdaData().Dependent; 1526 } 1527 1528 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1529 static bool classofKind(Kind K) { 1530 return K >= firstCXXRecord && K <= lastCXXRecord; 1531 } 1532 static bool classof(const CXXRecordDecl *D) { return true; } 1533 static bool classof(const ClassTemplateSpecializationDecl *D) { 1534 return true; 1535 } 1536 1537 friend class ASTDeclReader; 1538 friend class ASTDeclWriter; 1539 friend class ASTReader; 1540 friend class ASTWriter; 1541 }; 1542 1543 /// CXXMethodDecl - Represents a static or instance method of a 1544 /// struct/union/class. 1545 class CXXMethodDecl : public FunctionDecl { 1546 virtual void anchor(); 1547 protected: 1548 CXXMethodDecl(Kind DK, CXXRecordDecl *RD, SourceLocation StartLoc, 1549 const DeclarationNameInfo &NameInfo, 1550 QualType T, TypeSourceInfo *TInfo, 1551 bool isStatic, StorageClass SCAsWritten, bool isInline, 1552 bool isConstexpr, SourceLocation EndLocation) 1553 : FunctionDecl(DK, RD, StartLoc, NameInfo, T, TInfo, 1554 (isStatic ? SC_Static : SC_None), 1555 SCAsWritten, isInline, isConstexpr) { 1556 if (EndLocation.isValid()) 1557 setRangeEnd(EndLocation); 1558 } 1559 1560 public: 1561 static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1562 SourceLocation StartLoc, 1563 const DeclarationNameInfo &NameInfo, 1564 QualType T, TypeSourceInfo *TInfo, 1565 bool isStatic, 1566 StorageClass SCAsWritten, 1567 bool isInline, 1568 bool isConstexpr, 1569 SourceLocation EndLocation); 1570 1571 static CXXMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1572 1573 bool isStatic() const { return getStorageClass() == SC_Static; } 1574 bool isInstance() const { return !isStatic(); } 1575 1576 bool isVirtual() const { 1577 CXXMethodDecl *CD = 1578 cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl()); 1579 1580 if (CD->isVirtualAsWritten()) 1581 return true; 1582 1583 return (CD->begin_overridden_methods() != CD->end_overridden_methods()); 1584 } 1585 1586 /// \brief Determine whether this is a usual deallocation function 1587 /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded 1588 /// delete or delete[] operator with a particular signature. 1589 bool isUsualDeallocationFunction() const; 1590 1591 /// \brief Determine whether this is a copy-assignment operator, regardless 1592 /// of whether it was declared implicitly or explicitly. 1593 bool isCopyAssignmentOperator() const; 1594 1595 /// \brief Determine whether this is a move assignment operator. 1596 bool isMoveAssignmentOperator() const; 1597 1598 const CXXMethodDecl *getCanonicalDecl() const { 1599 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1600 } 1601 CXXMethodDecl *getCanonicalDecl() { 1602 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1603 } 1604 1605 /// isUserProvided - True if it is either an implicit constructor or 1606 /// if it was defaulted or deleted on first declaration. 1607 bool isUserProvided() const { 1608 return !(isDeleted() || getCanonicalDecl()->isDefaulted()); 1609 } 1610 1611 /// 1612 void addOverriddenMethod(const CXXMethodDecl *MD); 1613 1614 typedef const CXXMethodDecl *const* method_iterator; 1615 1616 method_iterator begin_overridden_methods() const; 1617 method_iterator end_overridden_methods() const; 1618 unsigned size_overridden_methods() const; 1619 1620 /// getParent - Returns the parent of this method declaration, which 1621 /// is the class in which this method is defined. 1622 const CXXRecordDecl *getParent() const { 1623 return cast<CXXRecordDecl>(FunctionDecl::getParent()); 1624 } 1625 1626 /// getParent - Returns the parent of this method declaration, which 1627 /// is the class in which this method is defined. 1628 CXXRecordDecl *getParent() { 1629 return const_cast<CXXRecordDecl *>( 1630 cast<CXXRecordDecl>(FunctionDecl::getParent())); 1631 } 1632 1633 /// getThisType - Returns the type of 'this' pointer. 1634 /// Should only be called for instance methods. 1635 QualType getThisType(ASTContext &C) const; 1636 1637 unsigned getTypeQualifiers() const { 1638 return getType()->getAs<FunctionProtoType>()->getTypeQuals(); 1639 } 1640 1641 /// \brief Retrieve the ref-qualifier associated with this method. 1642 /// 1643 /// In the following example, \c f() has an lvalue ref-qualifier, \c g() 1644 /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier. 1645 /// \code 1646 /// struct X { 1647 /// void f() &; 1648 /// void g() &&; 1649 /// void h(); 1650 /// }; 1651 /// \endcode 1652 RefQualifierKind getRefQualifier() const { 1653 return getType()->getAs<FunctionProtoType>()->getRefQualifier(); 1654 } 1655 1656 bool hasInlineBody() const; 1657 1658 /// \brief Determine whether this is a lambda closure type's static member 1659 /// function that is used for the result of the lambda's conversion to 1660 /// function pointer (for a lambda with no captures). 1661 /// 1662 /// The function itself, if used, will have a placeholder body that will be 1663 /// supplied by IR generation to either forward to the function call operator 1664 /// or clone the function call operator. 1665 bool isLambdaStaticInvoker() const; 1666 1667 // Implement isa/cast/dyncast/etc. 1668 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1669 static bool classof(const CXXMethodDecl *D) { return true; } 1670 static bool classofKind(Kind K) { 1671 return K >= firstCXXMethod && K <= lastCXXMethod; 1672 } 1673 }; 1674 1675 /// CXXCtorInitializer - Represents a C++ base or member 1676 /// initializer, which is part of a constructor initializer that 1677 /// initializes one non-static member variable or one base class. For 1678 /// example, in the following, both 'A(a)' and 'f(3.14159)' are member 1679 /// initializers: 1680 /// 1681 /// @code 1682 /// class A { }; 1683 /// class B : public A { 1684 /// float f; 1685 /// public: 1686 /// B(A& a) : A(a), f(3.14159) { } 1687 /// }; 1688 /// @endcode 1689 class CXXCtorInitializer { 1690 /// \brief Either the base class name/delegating constructor type (stored as 1691 /// a TypeSourceInfo*), an normal field (FieldDecl), or an anonymous field 1692 /// (IndirectFieldDecl*) being initialized. 1693 llvm::PointerUnion3<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *> 1694 Initializee; 1695 1696 /// \brief The source location for the field name or, for a base initializer 1697 /// pack expansion, the location of the ellipsis. In the case of a delegating 1698 /// constructor, it will still include the type's source location as the 1699 /// Initializee points to the CXXConstructorDecl (to allow loop detection). 1700 SourceLocation MemberOrEllipsisLocation; 1701 1702 /// \brief The argument used to initialize the base or member, which may 1703 /// end up constructing an object (when multiple arguments are involved). 1704 /// If 0, this is a field initializer, and the in-class member initializer 1705 /// will be used. 1706 Stmt *Init; 1707 1708 /// LParenLoc - Location of the left paren of the ctor-initializer. 1709 SourceLocation LParenLoc; 1710 1711 /// RParenLoc - Location of the right paren of the ctor-initializer. 1712 SourceLocation RParenLoc; 1713 1714 /// \brief If the initializee is a type, whether that type makes this 1715 /// a delegating initialization. 1716 bool IsDelegating : 1; 1717 1718 /// IsVirtual - If the initializer is a base initializer, this keeps track 1719 /// of whether the base is virtual or not. 1720 bool IsVirtual : 1; 1721 1722 /// IsWritten - Whether or not the initializer is explicitly written 1723 /// in the sources. 1724 bool IsWritten : 1; 1725 1726 /// SourceOrderOrNumArrayIndices - If IsWritten is true, then this 1727 /// number keeps track of the textual order of this initializer in the 1728 /// original sources, counting from 0; otherwise, if IsWritten is false, 1729 /// it stores the number of array index variables stored after this 1730 /// object in memory. 1731 unsigned SourceOrderOrNumArrayIndices : 13; 1732 1733 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1734 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1735 SourceLocation R, VarDecl **Indices, unsigned NumIndices); 1736 1737 public: 1738 /// CXXCtorInitializer - Creates a new base-class initializer. 1739 explicit 1740 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual, 1741 SourceLocation L, Expr *Init, SourceLocation R, 1742 SourceLocation EllipsisLoc); 1743 1744 /// CXXCtorInitializer - Creates a new member initializer. 1745 explicit 1746 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1747 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1748 SourceLocation R); 1749 1750 /// CXXCtorInitializer - Creates a new anonymous field initializer. 1751 explicit 1752 CXXCtorInitializer(ASTContext &Context, IndirectFieldDecl *Member, 1753 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1754 SourceLocation R); 1755 1756 /// CXXCtorInitializer - Creates a new delegating Initializer. 1757 explicit 1758 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, 1759 SourceLocation L, Expr *Init, SourceLocation R); 1760 1761 /// \brief Creates a new member initializer that optionally contains 1762 /// array indices used to describe an elementwise initialization. 1763 static CXXCtorInitializer *Create(ASTContext &Context, FieldDecl *Member, 1764 SourceLocation MemberLoc, SourceLocation L, 1765 Expr *Init, SourceLocation R, 1766 VarDecl **Indices, unsigned NumIndices); 1767 1768 /// isBaseInitializer - Returns true when this initializer is 1769 /// initializing a base class. 1770 bool isBaseInitializer() const { 1771 return Initializee.is<TypeSourceInfo*>() && !IsDelegating; 1772 } 1773 1774 /// isMemberInitializer - Returns true when this initializer is 1775 /// initializing a non-static data member. 1776 bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); } 1777 1778 bool isAnyMemberInitializer() const { 1779 return isMemberInitializer() || isIndirectMemberInitializer(); 1780 } 1781 1782 bool isIndirectMemberInitializer() const { 1783 return Initializee.is<IndirectFieldDecl*>(); 1784 } 1785 1786 /// isInClassMemberInitializer - Returns true when this initializer is an 1787 /// implicit ctor initializer generated for a field with an initializer 1788 /// defined on the member declaration. 1789 bool isInClassMemberInitializer() const { 1790 return !Init; 1791 } 1792 1793 /// isDelegatingInitializer - Returns true when this initializer is creating 1794 /// a delegating constructor. 1795 bool isDelegatingInitializer() const { 1796 return Initializee.is<TypeSourceInfo*>() && IsDelegating; 1797 } 1798 1799 /// \brief Determine whether this initializer is a pack expansion. 1800 bool isPackExpansion() const { 1801 return isBaseInitializer() && MemberOrEllipsisLocation.isValid(); 1802 } 1803 1804 // \brief For a pack expansion, returns the location of the ellipsis. 1805 SourceLocation getEllipsisLoc() const { 1806 assert(isPackExpansion() && "Initializer is not a pack expansion"); 1807 return MemberOrEllipsisLocation; 1808 } 1809 1810 /// If this is a base class initializer, returns the type of the 1811 /// base class with location information. Otherwise, returns an NULL 1812 /// type location. 1813 TypeLoc getBaseClassLoc() const; 1814 1815 /// If this is a base class initializer, returns the type of the base class. 1816 /// Otherwise, returns NULL. 1817 const Type *getBaseClass() const; 1818 1819 /// Returns whether the base is virtual or not. 1820 bool isBaseVirtual() const { 1821 assert(isBaseInitializer() && "Must call this on base initializer!"); 1822 1823 return IsVirtual; 1824 } 1825 1826 /// \brief Returns the declarator information for a base class or delegating 1827 /// initializer. 1828 TypeSourceInfo *getTypeSourceInfo() const { 1829 return Initializee.dyn_cast<TypeSourceInfo *>(); 1830 } 1831 1832 /// getMember - If this is a member initializer, returns the 1833 /// declaration of the non-static data member being 1834 /// initialized. Otherwise, returns NULL. 1835 FieldDecl *getMember() const { 1836 if (isMemberInitializer()) 1837 return Initializee.get<FieldDecl*>(); 1838 return 0; 1839 } 1840 FieldDecl *getAnyMember() const { 1841 if (isMemberInitializer()) 1842 return Initializee.get<FieldDecl*>(); 1843 if (isIndirectMemberInitializer()) 1844 return Initializee.get<IndirectFieldDecl*>()->getAnonField(); 1845 return 0; 1846 } 1847 1848 IndirectFieldDecl *getIndirectMember() const { 1849 if (isIndirectMemberInitializer()) 1850 return Initializee.get<IndirectFieldDecl*>(); 1851 return 0; 1852 } 1853 1854 SourceLocation getMemberLocation() const { 1855 return MemberOrEllipsisLocation; 1856 } 1857 1858 /// \brief Determine the source location of the initializer. 1859 SourceLocation getSourceLocation() const; 1860 1861 /// \brief Determine the source range covering the entire initializer. 1862 SourceRange getSourceRange() const LLVM_READONLY; 1863 1864 /// isWritten - Returns true if this initializer is explicitly written 1865 /// in the source code. 1866 bool isWritten() const { return IsWritten; } 1867 1868 /// \brief Return the source position of the initializer, counting from 0. 1869 /// If the initializer was implicit, -1 is returned. 1870 int getSourceOrder() const { 1871 return IsWritten ? static_cast<int>(SourceOrderOrNumArrayIndices) : -1; 1872 } 1873 1874 /// \brief Set the source order of this initializer. This method can only 1875 /// be called once for each initializer; it cannot be called on an 1876 /// initializer having a positive number of (implicit) array indices. 1877 void setSourceOrder(int pos) { 1878 assert(!IsWritten && 1879 "calling twice setSourceOrder() on the same initializer"); 1880 assert(SourceOrderOrNumArrayIndices == 0 && 1881 "setSourceOrder() used when there are implicit array indices"); 1882 assert(pos >= 0 && 1883 "setSourceOrder() used to make an initializer implicit"); 1884 IsWritten = true; 1885 SourceOrderOrNumArrayIndices = static_cast<unsigned>(pos); 1886 } 1887 1888 SourceLocation getLParenLoc() const { return LParenLoc; } 1889 SourceLocation getRParenLoc() const { return RParenLoc; } 1890 1891 /// \brief Determine the number of implicit array indices used while 1892 /// described an array member initialization. 1893 unsigned getNumArrayIndices() const { 1894 return IsWritten ? 0 : SourceOrderOrNumArrayIndices; 1895 } 1896 1897 /// \brief Retrieve a particular array index variable used to 1898 /// describe an array member initialization. 1899 VarDecl *getArrayIndex(unsigned I) { 1900 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1901 return reinterpret_cast<VarDecl **>(this + 1)[I]; 1902 } 1903 const VarDecl *getArrayIndex(unsigned I) const { 1904 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1905 return reinterpret_cast<const VarDecl * const *>(this + 1)[I]; 1906 } 1907 void setArrayIndex(unsigned I, VarDecl *Index) { 1908 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1909 reinterpret_cast<VarDecl **>(this + 1)[I] = Index; 1910 } 1911 ArrayRef<VarDecl *> getArrayIndexes() { 1912 assert(getNumArrayIndices() != 0 && "Getting indexes for non-array init"); 1913 return ArrayRef<VarDecl *>(reinterpret_cast<VarDecl **>(this + 1), 1914 getNumArrayIndices()); 1915 } 1916 1917 /// \brief Get the initializer. This is 0 if this is an in-class initializer 1918 /// for a non-static data member which has not yet been parsed. 1919 Expr *getInit() const { 1920 if (!Init) 1921 return getAnyMember()->getInClassInitializer(); 1922 1923 return static_cast<Expr*>(Init); 1924 } 1925 }; 1926 1927 /// CXXConstructorDecl - Represents a C++ constructor within a 1928 /// class. For example: 1929 /// 1930 /// @code 1931 /// class X { 1932 /// public: 1933 /// explicit X(int); // represented by a CXXConstructorDecl. 1934 /// }; 1935 /// @endcode 1936 class CXXConstructorDecl : public CXXMethodDecl { 1937 virtual void anchor(); 1938 /// IsExplicitSpecified - Whether this constructor declaration has the 1939 /// 'explicit' keyword specified. 1940 bool IsExplicitSpecified : 1; 1941 1942 /// ImplicitlyDefined - Whether this constructor was implicitly 1943 /// defined by the compiler. When false, the constructor was defined 1944 /// by the user. In C++03, this flag will have the same value as 1945 /// Implicit. In C++0x, however, a constructor that is 1946 /// explicitly defaulted (i.e., defined with " = default") will have 1947 /// @c !Implicit && ImplicitlyDefined. 1948 bool ImplicitlyDefined : 1; 1949 1950 /// Support for base and member initializers. 1951 /// CtorInitializers - The arguments used to initialize the base 1952 /// or member. 1953 CXXCtorInitializer **CtorInitializers; 1954 unsigned NumCtorInitializers; 1955 1956 CXXConstructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1957 const DeclarationNameInfo &NameInfo, 1958 QualType T, TypeSourceInfo *TInfo, 1959 bool isExplicitSpecified, bool isInline, 1960 bool isImplicitlyDeclared, bool isConstexpr) 1961 : CXXMethodDecl(CXXConstructor, RD, StartLoc, NameInfo, T, TInfo, false, 1962 SC_None, isInline, isConstexpr, SourceLocation()), 1963 IsExplicitSpecified(isExplicitSpecified), ImplicitlyDefined(false), 1964 CtorInitializers(0), NumCtorInitializers(0) { 1965 setImplicit(isImplicitlyDeclared); 1966 } 1967 1968 public: 1969 static CXXConstructorDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1970 static CXXConstructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1971 SourceLocation StartLoc, 1972 const DeclarationNameInfo &NameInfo, 1973 QualType T, TypeSourceInfo *TInfo, 1974 bool isExplicit, 1975 bool isInline, bool isImplicitlyDeclared, 1976 bool isConstexpr); 1977 1978 /// isExplicitSpecified - Whether this constructor declaration has the 1979 /// 'explicit' keyword specified. 1980 bool isExplicitSpecified() const { return IsExplicitSpecified; } 1981 1982 /// isExplicit - Whether this constructor was marked "explicit" or not. 1983 bool isExplicit() const { 1984 return cast<CXXConstructorDecl>(getFirstDeclaration()) 1985 ->isExplicitSpecified(); 1986 } 1987 1988 /// isImplicitlyDefined - Whether this constructor was implicitly 1989 /// defined. If false, then this constructor was defined by the 1990 /// user. This operation can only be invoked if the constructor has 1991 /// already been defined. 1992 bool isImplicitlyDefined() const { 1993 assert(isThisDeclarationADefinition() && 1994 "Can only get the implicit-definition flag once the " 1995 "constructor has been defined"); 1996 return ImplicitlyDefined; 1997 } 1998 1999 /// setImplicitlyDefined - Set whether this constructor was 2000 /// implicitly defined or not. 2001 void setImplicitlyDefined(bool ID) { 2002 assert(isThisDeclarationADefinition() && 2003 "Can only set the implicit-definition flag once the constructor " 2004 "has been defined"); 2005 ImplicitlyDefined = ID; 2006 } 2007 2008 /// init_iterator - Iterates through the member/base initializer list. 2009 typedef CXXCtorInitializer **init_iterator; 2010 2011 /// init_const_iterator - Iterates through the memberbase initializer list. 2012 typedef CXXCtorInitializer * const * init_const_iterator; 2013 2014 /// init_begin() - Retrieve an iterator to the first initializer. 2015 init_iterator init_begin() { return CtorInitializers; } 2016 /// begin() - Retrieve an iterator to the first initializer. 2017 init_const_iterator init_begin() const { return CtorInitializers; } 2018 2019 /// init_end() - Retrieve an iterator past the last initializer. 2020 init_iterator init_end() { 2021 return CtorInitializers + NumCtorInitializers; 2022 } 2023 /// end() - Retrieve an iterator past the last initializer. 2024 init_const_iterator init_end() const { 2025 return CtorInitializers + NumCtorInitializers; 2026 } 2027 2028 typedef std::reverse_iterator<init_iterator> init_reverse_iterator; 2029 typedef std::reverse_iterator<init_const_iterator> 2030 init_const_reverse_iterator; 2031 2032 init_reverse_iterator init_rbegin() { 2033 return init_reverse_iterator(init_end()); 2034 } 2035 init_const_reverse_iterator init_rbegin() const { 2036 return init_const_reverse_iterator(init_end()); 2037 } 2038 2039 init_reverse_iterator init_rend() { 2040 return init_reverse_iterator(init_begin()); 2041 } 2042 init_const_reverse_iterator init_rend() const { 2043 return init_const_reverse_iterator(init_begin()); 2044 } 2045 2046 /// getNumArgs - Determine the number of arguments used to 2047 /// initialize the member or base. 2048 unsigned getNumCtorInitializers() const { 2049 return NumCtorInitializers; 2050 } 2051 2052 void setNumCtorInitializers(unsigned numCtorInitializers) { 2053 NumCtorInitializers = numCtorInitializers; 2054 } 2055 2056 void setCtorInitializers(CXXCtorInitializer ** initializers) { 2057 CtorInitializers = initializers; 2058 } 2059 2060 /// isDelegatingConstructor - Whether this constructor is a 2061 /// delegating constructor 2062 bool isDelegatingConstructor() const { 2063 return (getNumCtorInitializers() == 1) && 2064 CtorInitializers[0]->isDelegatingInitializer(); 2065 } 2066 2067 /// getTargetConstructor - When this constructor delegates to 2068 /// another, retrieve the target 2069 CXXConstructorDecl *getTargetConstructor() const; 2070 2071 /// isDefaultConstructor - Whether this constructor is a default 2072 /// constructor (C++ [class.ctor]p5), which can be used to 2073 /// default-initialize a class of this type. 2074 bool isDefaultConstructor() const; 2075 2076 /// isCopyConstructor - Whether this constructor is a copy 2077 /// constructor (C++ [class.copy]p2, which can be used to copy the 2078 /// class. @p TypeQuals will be set to the qualifiers on the 2079 /// argument type. For example, @p TypeQuals would be set to @c 2080 /// QualType::Const for the following copy constructor: 2081 /// 2082 /// @code 2083 /// class X { 2084 /// public: 2085 /// X(const X&); 2086 /// }; 2087 /// @endcode 2088 bool isCopyConstructor(unsigned &TypeQuals) const; 2089 2090 /// isCopyConstructor - Whether this constructor is a copy 2091 /// constructor (C++ [class.copy]p2, which can be used to copy the 2092 /// class. 2093 bool isCopyConstructor() const { 2094 unsigned TypeQuals = 0; 2095 return isCopyConstructor(TypeQuals); 2096 } 2097 2098 /// \brief Determine whether this constructor is a move constructor 2099 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2100 /// 2101 /// \param TypeQuals If this constructor is a move constructor, will be set 2102 /// to the type qualifiers on the referent of the first parameter's type. 2103 bool isMoveConstructor(unsigned &TypeQuals) const; 2104 2105 /// \brief Determine whether this constructor is a move constructor 2106 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2107 bool isMoveConstructor() const { 2108 unsigned TypeQuals = 0; 2109 return isMoveConstructor(TypeQuals); 2110 } 2111 2112 /// \brief Determine whether this is a copy or move constructor. 2113 /// 2114 /// \param TypeQuals Will be set to the type qualifiers on the reference 2115 /// parameter, if in fact this is a copy or move constructor. 2116 bool isCopyOrMoveConstructor(unsigned &TypeQuals) const; 2117 2118 /// \brief Determine whether this a copy or move constructor. 2119 bool isCopyOrMoveConstructor() const { 2120 unsigned Quals; 2121 return isCopyOrMoveConstructor(Quals); 2122 } 2123 2124 /// isConvertingConstructor - Whether this constructor is a 2125 /// converting constructor (C++ [class.conv.ctor]), which can be 2126 /// used for user-defined conversions. 2127 bool isConvertingConstructor(bool AllowExplicit) const; 2128 2129 /// \brief Determine whether this is a member template specialization that 2130 /// would copy the object to itself. Such constructors are never used to copy 2131 /// an object. 2132 bool isSpecializationCopyingObject() const; 2133 2134 /// \brief Get the constructor that this inheriting constructor is based on. 2135 const CXXConstructorDecl *getInheritedConstructor() const; 2136 2137 /// \brief Set the constructor that this inheriting constructor is based on. 2138 void setInheritedConstructor(const CXXConstructorDecl *BaseCtor); 2139 2140 const CXXConstructorDecl *getCanonicalDecl() const { 2141 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2142 } 2143 CXXConstructorDecl *getCanonicalDecl() { 2144 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2145 } 2146 2147 // Implement isa/cast/dyncast/etc. 2148 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2149 static bool classof(const CXXConstructorDecl *D) { return true; } 2150 static bool classofKind(Kind K) { return K == CXXConstructor; } 2151 2152 friend class ASTDeclReader; 2153 friend class ASTDeclWriter; 2154 }; 2155 2156 /// CXXDestructorDecl - Represents a C++ destructor within a 2157 /// class. For example: 2158 /// 2159 /// @code 2160 /// class X { 2161 /// public: 2162 /// ~X(); // represented by a CXXDestructorDecl. 2163 /// }; 2164 /// @endcode 2165 class CXXDestructorDecl : public CXXMethodDecl { 2166 virtual void anchor(); 2167 /// ImplicitlyDefined - Whether this destructor was implicitly 2168 /// defined by the compiler. When false, the destructor was defined 2169 /// by the user. In C++03, this flag will have the same value as 2170 /// Implicit. In C++0x, however, a destructor that is 2171 /// explicitly defaulted (i.e., defined with " = default") will have 2172 /// @c !Implicit && ImplicitlyDefined. 2173 bool ImplicitlyDefined : 1; 2174 2175 FunctionDecl *OperatorDelete; 2176 2177 CXXDestructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2178 const DeclarationNameInfo &NameInfo, 2179 QualType T, TypeSourceInfo *TInfo, 2180 bool isInline, bool isImplicitlyDeclared) 2181 : CXXMethodDecl(CXXDestructor, RD, StartLoc, NameInfo, T, TInfo, false, 2182 SC_None, isInline, /*isConstexpr=*/false, SourceLocation()), 2183 ImplicitlyDefined(false), OperatorDelete(0) { 2184 setImplicit(isImplicitlyDeclared); 2185 } 2186 2187 public: 2188 static CXXDestructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2189 SourceLocation StartLoc, 2190 const DeclarationNameInfo &NameInfo, 2191 QualType T, TypeSourceInfo* TInfo, 2192 bool isInline, 2193 bool isImplicitlyDeclared); 2194 static CXXDestructorDecl *CreateDeserialized(ASTContext & C, unsigned ID); 2195 2196 /// isImplicitlyDefined - Whether this destructor was implicitly 2197 /// defined. If false, then this destructor was defined by the 2198 /// user. This operation can only be invoked if the destructor has 2199 /// already been defined. 2200 bool isImplicitlyDefined() const { 2201 assert(isThisDeclarationADefinition() && 2202 "Can only get the implicit-definition flag once the destructor has " 2203 "been defined"); 2204 return ImplicitlyDefined; 2205 } 2206 2207 /// setImplicitlyDefined - Set whether this destructor was 2208 /// implicitly defined or not. 2209 void setImplicitlyDefined(bool ID) { 2210 assert(isThisDeclarationADefinition() && 2211 "Can only set the implicit-definition flag once the destructor has " 2212 "been defined"); 2213 ImplicitlyDefined = ID; 2214 } 2215 2216 void setOperatorDelete(FunctionDecl *OD) { OperatorDelete = OD; } 2217 const FunctionDecl *getOperatorDelete() const { return OperatorDelete; } 2218 2219 // Implement isa/cast/dyncast/etc. 2220 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2221 static bool classof(const CXXDestructorDecl *D) { return true; } 2222 static bool classofKind(Kind K) { return K == CXXDestructor; } 2223 2224 friend class ASTDeclReader; 2225 friend class ASTDeclWriter; 2226 }; 2227 2228 /// CXXConversionDecl - Represents a C++ conversion function within a 2229 /// class. For example: 2230 /// 2231 /// @code 2232 /// class X { 2233 /// public: 2234 /// operator bool(); 2235 /// }; 2236 /// @endcode 2237 class CXXConversionDecl : public CXXMethodDecl { 2238 virtual void anchor(); 2239 /// IsExplicitSpecified - Whether this conversion function declaration is 2240 /// marked "explicit", meaning that it can only be applied when the user 2241 /// explicitly wrote a cast. This is a C++0x feature. 2242 bool IsExplicitSpecified : 1; 2243 2244 CXXConversionDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2245 const DeclarationNameInfo &NameInfo, 2246 QualType T, TypeSourceInfo *TInfo, 2247 bool isInline, bool isExplicitSpecified, 2248 bool isConstexpr, SourceLocation EndLocation) 2249 : CXXMethodDecl(CXXConversion, RD, StartLoc, NameInfo, T, TInfo, false, 2250 SC_None, isInline, isConstexpr, EndLocation), 2251 IsExplicitSpecified(isExplicitSpecified) { } 2252 2253 public: 2254 static CXXConversionDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2255 SourceLocation StartLoc, 2256 const DeclarationNameInfo &NameInfo, 2257 QualType T, TypeSourceInfo *TInfo, 2258 bool isInline, bool isExplicit, 2259 bool isConstexpr, 2260 SourceLocation EndLocation); 2261 static CXXConversionDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2262 2263 /// IsExplicitSpecified - Whether this conversion function declaration is 2264 /// marked "explicit", meaning that it can only be applied when the user 2265 /// explicitly wrote a cast. This is a C++0x feature. 2266 bool isExplicitSpecified() const { return IsExplicitSpecified; } 2267 2268 /// isExplicit - Whether this is an explicit conversion operator 2269 /// (C++0x only). Explicit conversion operators are only considered 2270 /// when the user has explicitly written a cast. 2271 bool isExplicit() const { 2272 return cast<CXXConversionDecl>(getFirstDeclaration()) 2273 ->isExplicitSpecified(); 2274 } 2275 2276 /// getConversionType - Returns the type that this conversion 2277 /// function is converting to. 2278 QualType getConversionType() const { 2279 return getType()->getAs<FunctionType>()->getResultType(); 2280 } 2281 2282 /// \brief Determine whether this conversion function is a conversion from 2283 /// a lambda closure type to a block pointer. 2284 bool isLambdaToBlockPointerConversion() const; 2285 2286 // Implement isa/cast/dyncast/etc. 2287 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2288 static bool classof(const CXXConversionDecl *D) { return true; } 2289 static bool classofKind(Kind K) { return K == CXXConversion; } 2290 2291 friend class ASTDeclReader; 2292 friend class ASTDeclWriter; 2293 }; 2294 2295 /// LinkageSpecDecl - This represents a linkage specification. For example: 2296 /// extern "C" void foo(); 2297 /// 2298 class LinkageSpecDecl : public Decl, public DeclContext { 2299 virtual void anchor(); 2300 public: 2301 /// LanguageIDs - Used to represent the language in a linkage 2302 /// specification. The values are part of the serialization abi for 2303 /// ASTs and cannot be changed without altering that abi. To help 2304 /// ensure a stable abi for this, we choose the DW_LANG_ encodings 2305 /// from the dwarf standard. 2306 enum LanguageIDs { 2307 lang_c = /* DW_LANG_C */ 0x0002, 2308 lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004 2309 }; 2310 private: 2311 /// Language - The language for this linkage specification. 2312 LanguageIDs Language; 2313 /// ExternLoc - The source location for the extern keyword. 2314 SourceLocation ExternLoc; 2315 /// RBraceLoc - The source location for the right brace (if valid). 2316 SourceLocation RBraceLoc; 2317 2318 LinkageSpecDecl(DeclContext *DC, SourceLocation ExternLoc, 2319 SourceLocation LangLoc, LanguageIDs lang, 2320 SourceLocation RBLoc) 2321 : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec), 2322 Language(lang), ExternLoc(ExternLoc), RBraceLoc(RBLoc) { } 2323 2324 public: 2325 static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC, 2326 SourceLocation ExternLoc, 2327 SourceLocation LangLoc, LanguageIDs Lang, 2328 SourceLocation RBraceLoc = SourceLocation()); 2329 static LinkageSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2330 2331 /// \brief Return the language specified by this linkage specification. 2332 LanguageIDs getLanguage() const { return Language; } 2333 /// \brief Set the language specified by this linkage specification. 2334 void setLanguage(LanguageIDs L) { Language = L; } 2335 2336 /// \brief Determines whether this linkage specification had braces in 2337 /// its syntactic form. 2338 bool hasBraces() const { return RBraceLoc.isValid(); } 2339 2340 SourceLocation getExternLoc() const { return ExternLoc; } 2341 SourceLocation getRBraceLoc() const { return RBraceLoc; } 2342 void setExternLoc(SourceLocation L) { ExternLoc = L; } 2343 void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } 2344 2345 SourceLocation getLocEnd() const LLVM_READONLY { 2346 if (hasBraces()) 2347 return getRBraceLoc(); 2348 // No braces: get the end location of the (only) declaration in context 2349 // (if present). 2350 return decls_empty() ? getLocation() : decls_begin()->getLocEnd(); 2351 } 2352 2353 SourceRange getSourceRange() const LLVM_READONLY { 2354 return SourceRange(ExternLoc, getLocEnd()); 2355 } 2356 2357 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2358 static bool classof(const LinkageSpecDecl *D) { return true; } 2359 static bool classofKind(Kind K) { return K == LinkageSpec; } 2360 static DeclContext *castToDeclContext(const LinkageSpecDecl *D) { 2361 return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D)); 2362 } 2363 static LinkageSpecDecl *castFromDeclContext(const DeclContext *DC) { 2364 return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC)); 2365 } 2366 }; 2367 2368 /// UsingDirectiveDecl - Represents C++ using-directive. For example: 2369 /// 2370 /// using namespace std; 2371 /// 2372 // NB: UsingDirectiveDecl should be Decl not NamedDecl, but we provide 2373 // artificial names for all using-directives in order to store 2374 // them in DeclContext effectively. 2375 class UsingDirectiveDecl : public NamedDecl { 2376 virtual void anchor(); 2377 /// \brief The location of the "using" keyword. 2378 SourceLocation UsingLoc; 2379 2380 /// SourceLocation - Location of 'namespace' token. 2381 SourceLocation NamespaceLoc; 2382 2383 /// \brief The nested-name-specifier that precedes the namespace. 2384 NestedNameSpecifierLoc QualifierLoc; 2385 2386 /// NominatedNamespace - Namespace nominated by using-directive. 2387 NamedDecl *NominatedNamespace; 2388 2389 /// Enclosing context containing both using-directive and nominated 2390 /// namespace. 2391 DeclContext *CommonAncestor; 2392 2393 /// getUsingDirectiveName - Returns special DeclarationName used by 2394 /// using-directives. This is only used by DeclContext for storing 2395 /// UsingDirectiveDecls in its lookup structure. 2396 static DeclarationName getName() { 2397 return DeclarationName::getUsingDirectiveName(); 2398 } 2399 2400 UsingDirectiveDecl(DeclContext *DC, SourceLocation UsingLoc, 2401 SourceLocation NamespcLoc, 2402 NestedNameSpecifierLoc QualifierLoc, 2403 SourceLocation IdentLoc, 2404 NamedDecl *Nominated, 2405 DeclContext *CommonAncestor) 2406 : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc), 2407 NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc), 2408 NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) { } 2409 2410 public: 2411 /// \brief Retrieve the nested-name-specifier that qualifies the 2412 /// name of the namespace, with source-location information. 2413 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2414 2415 /// \brief Retrieve the nested-name-specifier that qualifies the 2416 /// name of the namespace. 2417 NestedNameSpecifier *getQualifier() const { 2418 return QualifierLoc.getNestedNameSpecifier(); 2419 } 2420 2421 NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; } 2422 const NamedDecl *getNominatedNamespaceAsWritten() const { 2423 return NominatedNamespace; 2424 } 2425 2426 /// getNominatedNamespace - Returns namespace nominated by using-directive. 2427 NamespaceDecl *getNominatedNamespace(); 2428 2429 const NamespaceDecl *getNominatedNamespace() const { 2430 return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace(); 2431 } 2432 2433 /// \brief Returns the common ancestor context of this using-directive and 2434 /// its nominated namespace. 2435 DeclContext *getCommonAncestor() { return CommonAncestor; } 2436 const DeclContext *getCommonAncestor() const { return CommonAncestor; } 2437 2438 /// \brief Return the location of the "using" keyword. 2439 SourceLocation getUsingLoc() const { return UsingLoc; } 2440 2441 // FIXME: Could omit 'Key' in name. 2442 /// getNamespaceKeyLocation - Returns location of namespace keyword. 2443 SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; } 2444 2445 /// getIdentLocation - Returns location of identifier. 2446 SourceLocation getIdentLocation() const { return getLocation(); } 2447 2448 static UsingDirectiveDecl *Create(ASTContext &C, DeclContext *DC, 2449 SourceLocation UsingLoc, 2450 SourceLocation NamespaceLoc, 2451 NestedNameSpecifierLoc QualifierLoc, 2452 SourceLocation IdentLoc, 2453 NamedDecl *Nominated, 2454 DeclContext *CommonAncestor); 2455 static UsingDirectiveDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2456 2457 SourceRange getSourceRange() const LLVM_READONLY { 2458 return SourceRange(UsingLoc, getLocation()); 2459 } 2460 2461 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2462 static bool classof(const UsingDirectiveDecl *D) { return true; } 2463 static bool classofKind(Kind K) { return K == UsingDirective; } 2464 2465 // Friend for getUsingDirectiveName. 2466 friend class DeclContext; 2467 2468 friend class ASTDeclReader; 2469 }; 2470 2471 /// NamespaceAliasDecl - Represents a C++ namespace alias. For example: 2472 /// 2473 /// @code 2474 /// namespace Foo = Bar; 2475 /// @endcode 2476 class NamespaceAliasDecl : public NamedDecl { 2477 virtual void anchor(); 2478 2479 /// \brief The location of the "namespace" keyword. 2480 SourceLocation NamespaceLoc; 2481 2482 /// IdentLoc - Location of namespace identifier. Accessed by TargetNameLoc. 2483 SourceLocation IdentLoc; 2484 2485 /// \brief The nested-name-specifier that precedes the namespace. 2486 NestedNameSpecifierLoc QualifierLoc; 2487 2488 /// Namespace - The Decl that this alias points to. Can either be a 2489 /// NamespaceDecl or a NamespaceAliasDecl. 2490 NamedDecl *Namespace; 2491 2492 NamespaceAliasDecl(DeclContext *DC, SourceLocation NamespaceLoc, 2493 SourceLocation AliasLoc, IdentifierInfo *Alias, 2494 NestedNameSpecifierLoc QualifierLoc, 2495 SourceLocation IdentLoc, NamedDecl *Namespace) 2496 : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), 2497 NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc), 2498 QualifierLoc(QualifierLoc), Namespace(Namespace) { } 2499 2500 friend class ASTDeclReader; 2501 2502 public: 2503 /// \brief Retrieve the nested-name-specifier that qualifies the 2504 /// name of the namespace, with source-location information. 2505 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2506 2507 /// \brief Retrieve the nested-name-specifier that qualifies the 2508 /// name of the namespace. 2509 NestedNameSpecifier *getQualifier() const { 2510 return QualifierLoc.getNestedNameSpecifier(); 2511 } 2512 2513 /// \brief Retrieve the namespace declaration aliased by this directive. 2514 NamespaceDecl *getNamespace() { 2515 if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace)) 2516 return AD->getNamespace(); 2517 2518 return cast<NamespaceDecl>(Namespace); 2519 } 2520 2521 const NamespaceDecl *getNamespace() const { 2522 return const_cast<NamespaceAliasDecl*>(this)->getNamespace(); 2523 } 2524 2525 /// Returns the location of the alias name, i.e. 'foo' in 2526 /// "namespace foo = ns::bar;". 2527 SourceLocation getAliasLoc() const { return getLocation(); } 2528 2529 /// Returns the location of the 'namespace' keyword. 2530 SourceLocation getNamespaceLoc() const { return NamespaceLoc; } 2531 2532 /// Returns the location of the identifier in the named namespace. 2533 SourceLocation getTargetNameLoc() const { return IdentLoc; } 2534 2535 /// \brief Retrieve the namespace that this alias refers to, which 2536 /// may either be a NamespaceDecl or a NamespaceAliasDecl. 2537 NamedDecl *getAliasedNamespace() const { return Namespace; } 2538 2539 static NamespaceAliasDecl *Create(ASTContext &C, DeclContext *DC, 2540 SourceLocation NamespaceLoc, 2541 SourceLocation AliasLoc, 2542 IdentifierInfo *Alias, 2543 NestedNameSpecifierLoc QualifierLoc, 2544 SourceLocation IdentLoc, 2545 NamedDecl *Namespace); 2546 2547 static NamespaceAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2548 2549 virtual SourceRange getSourceRange() const LLVM_READONLY { 2550 return SourceRange(NamespaceLoc, IdentLoc); 2551 } 2552 2553 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2554 static bool classof(const NamespaceAliasDecl *D) { return true; } 2555 static bool classofKind(Kind K) { return K == NamespaceAlias; } 2556 }; 2557 2558 /// UsingShadowDecl - Represents a shadow declaration introduced into 2559 /// a scope by a (resolved) using declaration. For example, 2560 /// 2561 /// namespace A { 2562 /// void foo(); 2563 /// } 2564 /// namespace B { 2565 /// using A::foo(); // <- a UsingDecl 2566 /// // Also creates a UsingShadowDecl for A::foo in B 2567 /// } 2568 /// 2569 class UsingShadowDecl : public NamedDecl { 2570 virtual void anchor(); 2571 2572 /// The referenced declaration. 2573 NamedDecl *Underlying; 2574 2575 /// \brief The using declaration which introduced this decl or the next using 2576 /// shadow declaration contained in the aforementioned using declaration. 2577 NamedDecl *UsingOrNextShadow; 2578 friend class UsingDecl; 2579 2580 UsingShadowDecl(DeclContext *DC, SourceLocation Loc, UsingDecl *Using, 2581 NamedDecl *Target) 2582 : NamedDecl(UsingShadow, DC, Loc, DeclarationName()), 2583 Underlying(Target), 2584 UsingOrNextShadow(reinterpret_cast<NamedDecl *>(Using)) { 2585 if (Target) { 2586 setDeclName(Target->getDeclName()); 2587 IdentifierNamespace = Target->getIdentifierNamespace(); 2588 } 2589 setImplicit(); 2590 } 2591 2592 public: 2593 static UsingShadowDecl *Create(ASTContext &C, DeclContext *DC, 2594 SourceLocation Loc, UsingDecl *Using, 2595 NamedDecl *Target) { 2596 return new (C) UsingShadowDecl(DC, Loc, Using, Target); 2597 } 2598 2599 static UsingShadowDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2600 2601 /// \brief Gets the underlying declaration which has been brought into the 2602 /// local scope. 2603 NamedDecl *getTargetDecl() const { return Underlying; } 2604 2605 /// \brief Sets the underlying declaration which has been brought into the 2606 /// local scope. 2607 void setTargetDecl(NamedDecl* ND) { 2608 assert(ND && "Target decl is null!"); 2609 Underlying = ND; 2610 IdentifierNamespace = ND->getIdentifierNamespace(); 2611 } 2612 2613 /// \brief Gets the using declaration to which this declaration is tied. 2614 UsingDecl *getUsingDecl() const; 2615 2616 /// \brief The next using shadow declaration contained in the shadow decl 2617 /// chain of the using declaration which introduced this decl. 2618 UsingShadowDecl *getNextUsingShadowDecl() const { 2619 return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow); 2620 } 2621 2622 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2623 static bool classof(const UsingShadowDecl *D) { return true; } 2624 static bool classofKind(Kind K) { return K == Decl::UsingShadow; } 2625 2626 friend class ASTDeclReader; 2627 friend class ASTDeclWriter; 2628 }; 2629 2630 /// UsingDecl - Represents a C++ using-declaration. For example: 2631 /// using someNameSpace::someIdentifier; 2632 class UsingDecl : public NamedDecl { 2633 virtual void anchor(); 2634 2635 /// \brief The source location of the "using" location itself. 2636 SourceLocation UsingLocation; 2637 2638 /// \brief The nested-name-specifier that precedes the name. 2639 NestedNameSpecifierLoc QualifierLoc; 2640 2641 /// DNLoc - Provides source/type location info for the 2642 /// declaration name embedded in the ValueDecl base class. 2643 DeclarationNameLoc DNLoc; 2644 2645 /// \brief The first shadow declaration of the shadow decl chain associated 2646 /// with this using declaration. The bool member of the pair store whether 2647 /// this decl has the 'typename' keyword. 2648 llvm::PointerIntPair<UsingShadowDecl *, 1, bool> FirstUsingShadow; 2649 2650 UsingDecl(DeclContext *DC, SourceLocation UL, 2651 NestedNameSpecifierLoc QualifierLoc, 2652 const DeclarationNameInfo &NameInfo, bool IsTypeNameArg) 2653 : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()), 2654 UsingLocation(UL), QualifierLoc(QualifierLoc), 2655 DNLoc(NameInfo.getInfo()), FirstUsingShadow(0, IsTypeNameArg) { 2656 } 2657 2658 public: 2659 /// \brief Returns the source location of the "using" keyword. 2660 SourceLocation getUsingLocation() const { return UsingLocation; } 2661 2662 /// \brief Set the source location of the 'using' keyword. 2663 void setUsingLocation(SourceLocation L) { UsingLocation = L; } 2664 2665 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2666 /// with source-location information. 2667 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2668 2669 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2670 NestedNameSpecifier *getQualifier() const { 2671 return QualifierLoc.getNestedNameSpecifier(); 2672 } 2673 2674 DeclarationNameInfo getNameInfo() const { 2675 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2676 } 2677 2678 /// \brief Return true if the using declaration has 'typename'. 2679 bool isTypeName() const { return FirstUsingShadow.getInt(); } 2680 2681 /// \brief Sets whether the using declaration has 'typename'. 2682 void setTypeName(bool TN) { FirstUsingShadow.setInt(TN); } 2683 2684 /// \brief Iterates through the using shadow declarations assosiated with 2685 /// this using declaration. 2686 class shadow_iterator { 2687 /// \brief The current using shadow declaration. 2688 UsingShadowDecl *Current; 2689 2690 public: 2691 typedef UsingShadowDecl* value_type; 2692 typedef UsingShadowDecl* reference; 2693 typedef UsingShadowDecl* pointer; 2694 typedef std::forward_iterator_tag iterator_category; 2695 typedef std::ptrdiff_t difference_type; 2696 2697 shadow_iterator() : Current(0) { } 2698 explicit shadow_iterator(UsingShadowDecl *C) : Current(C) { } 2699 2700 reference operator*() const { return Current; } 2701 pointer operator->() const { return Current; } 2702 2703 shadow_iterator& operator++() { 2704 Current = Current->getNextUsingShadowDecl(); 2705 return *this; 2706 } 2707 2708 shadow_iterator operator++(int) { 2709 shadow_iterator tmp(*this); 2710 ++(*this); 2711 return tmp; 2712 } 2713 2714 friend bool operator==(shadow_iterator x, shadow_iterator y) { 2715 return x.Current == y.Current; 2716 } 2717 friend bool operator!=(shadow_iterator x, shadow_iterator y) { 2718 return x.Current != y.Current; 2719 } 2720 }; 2721 2722 shadow_iterator shadow_begin() const { 2723 return shadow_iterator(FirstUsingShadow.getPointer()); 2724 } 2725 shadow_iterator shadow_end() const { return shadow_iterator(); } 2726 2727 /// \brief Return the number of shadowed declarations associated with this 2728 /// using declaration. 2729 unsigned shadow_size() const { 2730 return std::distance(shadow_begin(), shadow_end()); 2731 } 2732 2733 void addShadowDecl(UsingShadowDecl *S); 2734 void removeShadowDecl(UsingShadowDecl *S); 2735 2736 static UsingDecl *Create(ASTContext &C, DeclContext *DC, 2737 SourceLocation UsingL, 2738 NestedNameSpecifierLoc QualifierLoc, 2739 const DeclarationNameInfo &NameInfo, 2740 bool IsTypeNameArg); 2741 2742 static UsingDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2743 2744 SourceRange getSourceRange() const LLVM_READONLY { 2745 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2746 } 2747 2748 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2749 static bool classof(const UsingDecl *D) { return true; } 2750 static bool classofKind(Kind K) { return K == Using; } 2751 2752 friend class ASTDeclReader; 2753 friend class ASTDeclWriter; 2754 }; 2755 2756 /// UnresolvedUsingValueDecl - Represents a dependent using 2757 /// declaration which was not marked with 'typename'. Unlike 2758 /// non-dependent using declarations, these *only* bring through 2759 /// non-types; otherwise they would break two-phase lookup. 2760 /// 2761 /// template <class T> class A : public Base<T> { 2762 /// using Base<T>::foo; 2763 /// }; 2764 class UnresolvedUsingValueDecl : public ValueDecl { 2765 virtual void anchor(); 2766 2767 /// \brief The source location of the 'using' keyword 2768 SourceLocation UsingLocation; 2769 2770 /// \brief The nested-name-specifier that precedes the name. 2771 NestedNameSpecifierLoc QualifierLoc; 2772 2773 /// DNLoc - Provides source/type location info for the 2774 /// declaration name embedded in the ValueDecl base class. 2775 DeclarationNameLoc DNLoc; 2776 2777 UnresolvedUsingValueDecl(DeclContext *DC, QualType Ty, 2778 SourceLocation UsingLoc, 2779 NestedNameSpecifierLoc QualifierLoc, 2780 const DeclarationNameInfo &NameInfo) 2781 : ValueDecl(UnresolvedUsingValue, DC, 2782 NameInfo.getLoc(), NameInfo.getName(), Ty), 2783 UsingLocation(UsingLoc), QualifierLoc(QualifierLoc), 2784 DNLoc(NameInfo.getInfo()) 2785 { } 2786 2787 public: 2788 /// \brief Returns the source location of the 'using' keyword. 2789 SourceLocation getUsingLoc() const { return UsingLocation; } 2790 2791 /// \brief Set the source location of the 'using' keyword. 2792 void setUsingLoc(SourceLocation L) { UsingLocation = L; } 2793 2794 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2795 /// with source-location information. 2796 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2797 2798 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2799 NestedNameSpecifier *getQualifier() const { 2800 return QualifierLoc.getNestedNameSpecifier(); 2801 } 2802 2803 DeclarationNameInfo getNameInfo() const { 2804 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2805 } 2806 2807 static UnresolvedUsingValueDecl * 2808 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2809 NestedNameSpecifierLoc QualifierLoc, 2810 const DeclarationNameInfo &NameInfo); 2811 2812 static UnresolvedUsingValueDecl * 2813 CreateDeserialized(ASTContext &C, unsigned ID); 2814 2815 SourceRange getSourceRange() const LLVM_READONLY { 2816 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2817 } 2818 2819 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2820 static bool classof(const UnresolvedUsingValueDecl *D) { return true; } 2821 static bool classofKind(Kind K) { return K == UnresolvedUsingValue; } 2822 2823 friend class ASTDeclReader; 2824 friend class ASTDeclWriter; 2825 }; 2826 2827 /// UnresolvedUsingTypenameDecl - Represents a dependent using 2828 /// declaration which was marked with 'typename'. 2829 /// 2830 /// template <class T> class A : public Base<T> { 2831 /// using typename Base<T>::foo; 2832 /// }; 2833 /// 2834 /// The type associated with a unresolved using typename decl is 2835 /// currently always a typename type. 2836 class UnresolvedUsingTypenameDecl : public TypeDecl { 2837 virtual void anchor(); 2838 2839 /// \brief The source location of the 'using' keyword 2840 SourceLocation UsingLocation; 2841 2842 /// \brief The source location of the 'typename' keyword 2843 SourceLocation TypenameLocation; 2844 2845 /// \brief The nested-name-specifier that precedes the name. 2846 NestedNameSpecifierLoc QualifierLoc; 2847 2848 UnresolvedUsingTypenameDecl(DeclContext *DC, SourceLocation UsingLoc, 2849 SourceLocation TypenameLoc, 2850 NestedNameSpecifierLoc QualifierLoc, 2851 SourceLocation TargetNameLoc, 2852 IdentifierInfo *TargetName) 2853 : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName, 2854 UsingLoc), 2855 TypenameLocation(TypenameLoc), QualifierLoc(QualifierLoc) { } 2856 2857 friend class ASTDeclReader; 2858 2859 public: 2860 /// \brief Returns the source location of the 'using' keyword. 2861 SourceLocation getUsingLoc() const { return getLocStart(); } 2862 2863 /// \brief Returns the source location of the 'typename' keyword. 2864 SourceLocation getTypenameLoc() const { return TypenameLocation; } 2865 2866 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2867 /// with source-location information. 2868 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2869 2870 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2871 NestedNameSpecifier *getQualifier() const { 2872 return QualifierLoc.getNestedNameSpecifier(); 2873 } 2874 2875 static UnresolvedUsingTypenameDecl * 2876 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2877 SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc, 2878 SourceLocation TargetNameLoc, DeclarationName TargetName); 2879 2880 static UnresolvedUsingTypenameDecl * 2881 CreateDeserialized(ASTContext &C, unsigned ID); 2882 2883 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2884 static bool classof(const UnresolvedUsingTypenameDecl *D) { return true; } 2885 static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; } 2886 }; 2887 2888 /// StaticAssertDecl - Represents a C++0x static_assert declaration. 2889 class StaticAssertDecl : public Decl { 2890 virtual void anchor(); 2891 Expr *AssertExpr; 2892 StringLiteral *Message; 2893 SourceLocation RParenLoc; 2894 2895 StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc, 2896 Expr *assertexpr, StringLiteral *message, 2897 SourceLocation RParenLoc) 2898 : Decl(StaticAssert, DC, StaticAssertLoc), AssertExpr(assertexpr), 2899 Message(message), RParenLoc(RParenLoc) { } 2900 2901 public: 2902 static StaticAssertDecl *Create(ASTContext &C, DeclContext *DC, 2903 SourceLocation StaticAssertLoc, 2904 Expr *AssertExpr, StringLiteral *Message, 2905 SourceLocation RParenLoc); 2906 static StaticAssertDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2907 2908 Expr *getAssertExpr() { return AssertExpr; } 2909 const Expr *getAssertExpr() const { return AssertExpr; } 2910 2911 StringLiteral *getMessage() { return Message; } 2912 const StringLiteral *getMessage() const { return Message; } 2913 2914 SourceLocation getRParenLoc() const { return RParenLoc; } 2915 void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2916 2917 SourceRange getSourceRange() const LLVM_READONLY { 2918 return SourceRange(getLocation(), getRParenLoc()); 2919 } 2920 2921 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2922 static bool classof(StaticAssertDecl *D) { return true; } 2923 static bool classofKind(Kind K) { return K == StaticAssert; } 2924 2925 friend class ASTDeclReader; 2926 }; 2927 2928 /// Insertion operator for diagnostics. This allows sending AccessSpecifier's 2929 /// into a diagnostic with <<. 2930 const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 2931 AccessSpecifier AS); 2932 2933 const PartialDiagnostic &operator<<(const PartialDiagnostic &DB, 2934 AccessSpecifier AS); 2935 2936 } // end namespace clang 2937 2938 #endif 2939