DeclCXX.h revision 0e5e092228495c9524ba6fa9b49f116a0c1bbe55
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 28namespace clang { 29 30class ClassTemplateDecl; 31class ClassTemplateSpecializationDecl; 32class CXXBasePath; 33class CXXBasePaths; 34class CXXConstructorDecl; 35class CXXConversionDecl; 36class CXXDestructorDecl; 37class CXXMethodDecl; 38class CXXRecordDecl; 39class CXXMemberLookupCriteria; 40class CXXFinalOverriderMap; 41class CXXIndirectPrimaryBaseSet; 42class FriendDecl; 43class LambdaExpr; 44 45/// \brief Represents any kind of function declaration, whether it is a 46/// concrete function or a function template. 47class AnyFunctionDecl { 48 NamedDecl *Function; 49 50 AnyFunctionDecl(NamedDecl *ND) : Function(ND) { } 51 52public: 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 70namespace 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 99namespace 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]). 111class 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) { } 123public: 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". 168class 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 202public: 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. 271class 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 /// \brief True if any field has an in-class initializer. 361 bool HasInClassInitializer : 1; 362 363 /// HasTrivialDefaultConstructor - True when, if this class has a default 364 /// constructor, this default constructor is trivial. 365 /// 366 /// C++0x [class.ctor]p5 367 /// A default constructor is trivial if it is not user-provided and if 368 /// -- its class has no virtual functions and no virtual base classes, 369 /// and 370 /// -- no non-static data member of its class has a 371 /// brace-or-equal-initializer, and 372 /// -- all the direct base classes of its class have trivial 373 /// default constructors, and 374 /// -- for all the nonstatic data members of its class that are of class 375 /// type (or array thereof), each such class has a trivial 376 /// default constructor. 377 bool HasTrivialDefaultConstructor : 1; 378 379 /// HasConstexprNonCopyMoveConstructor - True when this class has at least 380 /// one user-declared constexpr constructor which is neither the copy nor 381 /// move constructor. 382 bool HasConstexprNonCopyMoveConstructor : 1; 383 384 /// DefaultedDefaultConstructorIsConstexpr - True if a defaulted default 385 /// constructor for this class would be constexpr. 386 bool DefaultedDefaultConstructorIsConstexpr : 1; 387 388 /// DefaultedCopyConstructorIsConstexpr - True if a defaulted copy 389 /// constructor for this class would be constexpr. 390 bool DefaultedCopyConstructorIsConstexpr : 1; 391 392 /// DefaultedMoveConstructorIsConstexpr - True if a defaulted move 393 /// constructor for this class would be constexpr. 394 bool DefaultedMoveConstructorIsConstexpr : 1; 395 396 /// HasConstexprDefaultConstructor - True if this class has a constexpr 397 /// default constructor (either user-declared or implicitly declared). 398 bool HasConstexprDefaultConstructor : 1; 399 400 /// HasConstexprCopyConstructor - True if this class has a constexpr copy 401 /// constructor (either user-declared or implicitly declared). 402 bool HasConstexprCopyConstructor : 1; 403 404 /// HasConstexprMoveConstructor - True if this class has a constexpr move 405 /// constructor (either user-declared or implicitly declared). 406 bool HasConstexprMoveConstructor : 1; 407 408 /// HasTrivialCopyConstructor - True when this class has a trivial copy 409 /// constructor. 410 /// 411 /// C++0x [class.copy]p13: 412 /// A copy/move constructor for class X is trivial if it is neither 413 /// user-provided and if 414 /// -- class X has no virtual functions and no virtual base classes, and 415 /// -- the constructor selected to copy/move each direct base class 416 /// subobject is trivial, and 417 /// -- for each non-static data member of X that is of class type (or an 418 /// array thereof), the constructor selected to copy/move that member 419 /// is trivial; 420 /// otherwise the copy/move constructor is non-trivial. 421 bool HasTrivialCopyConstructor : 1; 422 423 /// HasTrivialMoveConstructor - True when this class has a trivial move 424 /// constructor. 425 /// 426 /// C++0x [class.copy]p13: 427 /// A copy/move constructor for class X is trivial if it is neither 428 /// user-provided and if 429 /// -- class X has no virtual functions and no virtual base classes, and 430 /// -- the constructor selected to copy/move each direct base class 431 /// subobject is trivial, and 432 /// -- for each non-static data member of X that is of class type (or an 433 /// array thereof), the constructor selected to copy/move that member 434 /// is trivial; 435 /// otherwise the copy/move constructor is non-trivial. 436 bool HasTrivialMoveConstructor : 1; 437 438 /// HasTrivialCopyAssignment - True when this class has a trivial copy 439 /// assignment operator. 440 /// 441 /// C++0x [class.copy]p27: 442 /// A copy/move assignment operator for class X is trivial if it is 443 /// neither user-provided nor deleted and if 444 /// -- class X has no virtual functions and no virtual base classes, and 445 /// -- the assignment operator selected to copy/move each direct base 446 /// class subobject is trivial, and 447 /// -- for each non-static data member of X that is of class type (or an 448 /// array thereof), the assignment operator selected to copy/move 449 /// that member is trivial; 450 /// otherwise the copy/move assignment operator is non-trivial. 451 bool HasTrivialCopyAssignment : 1; 452 453 /// HasTrivialMoveAssignment - True when this class has a trivial move 454 /// assignment operator. 455 /// 456 /// C++0x [class.copy]p27: 457 /// A copy/move assignment operator for class X is trivial if it is 458 /// neither user-provided nor deleted and if 459 /// -- class X has no virtual functions and no virtual base classes, and 460 /// -- the assignment operator selected to copy/move each direct base 461 /// class subobject is trivial, and 462 /// -- for each non-static data member of X that is of class type (or an 463 /// array thereof), the assignment operator selected to copy/move 464 /// that member is trivial; 465 /// otherwise the copy/move assignment operator is non-trivial. 466 bool HasTrivialMoveAssignment : 1; 467 468 /// HasTrivialDestructor - True when this class has a trivial destructor. 469 /// 470 /// C++ [class.dtor]p3. A destructor is trivial if it is an 471 /// implicitly-declared destructor and if: 472 /// * all of the direct base classes of its class have trivial destructors 473 /// and 474 /// * for all of the non-static data members of its class that are of class 475 /// type (or array thereof), each such class has a trivial destructor. 476 bool HasTrivialDestructor : 1; 477 478 /// HasIrrelevantDestructor - True when this class has a destructor with no 479 /// semantic effect. 480 bool HasIrrelevantDestructor : 1; 481 482 /// HasNonLiteralTypeFieldsOrBases - True when this class contains at least 483 /// one non-static data member or base class of non-literal or volatile 484 /// type. 485 bool HasNonLiteralTypeFieldsOrBases : 1; 486 487 /// ComputedVisibleConversions - True when visible conversion functions are 488 /// already computed and are available. 489 bool ComputedVisibleConversions : 1; 490 491 /// \brief Whether we have a C++0x user-provided default constructor (not 492 /// explicitly deleted or defaulted). 493 bool UserProvidedDefaultConstructor : 1; 494 495 /// \brief Whether we have already declared the default constructor. 496 bool DeclaredDefaultConstructor : 1; 497 498 /// \brief Whether we have already declared the copy constructor. 499 bool DeclaredCopyConstructor : 1; 500 501 /// \brief Whether we have already declared the move constructor. 502 bool DeclaredMoveConstructor : 1; 503 504 /// \brief Whether we have already declared the copy-assignment operator. 505 bool DeclaredCopyAssignment : 1; 506 507 /// \brief Whether we have already declared the move-assignment operator. 508 bool DeclaredMoveAssignment : 1; 509 510 /// \brief Whether we have already declared a destructor within the class. 511 bool DeclaredDestructor : 1; 512 513 /// \brief Whether an implicit move constructor was attempted to be declared 514 /// but would have been deleted. 515 bool FailedImplicitMoveConstructor : 1; 516 517 /// \brief Whether an implicit move assignment operator was attempted to be 518 /// declared but would have been deleted. 519 bool FailedImplicitMoveAssignment : 1; 520 521 /// \brief Whether this class describes a C++ lambda. 522 bool IsLambda : 1; 523 524 /// NumBases - The number of base class specifiers in Bases. 525 unsigned NumBases; 526 527 /// NumVBases - The number of virtual base class specifiers in VBases. 528 unsigned NumVBases; 529 530 /// Bases - Base classes of this class. 531 /// FIXME: This is wasted space for a union. 532 LazyCXXBaseSpecifiersPtr Bases; 533 534 /// VBases - direct and indirect virtual base classes of this class. 535 LazyCXXBaseSpecifiersPtr VBases; 536 537 /// Conversions - Overload set containing the conversion functions 538 /// of this C++ class (but not its inherited conversion 539 /// functions). Each of the entries in this overload set is a 540 /// CXXConversionDecl. 541 UnresolvedSet<4> Conversions; 542 543 /// VisibleConversions - Overload set containing the conversion 544 /// functions of this C++ class and all those inherited conversion 545 /// functions that are visible in this class. Each of the entries 546 /// in this overload set is a CXXConversionDecl or a 547 /// FunctionTemplateDecl. 548 UnresolvedSet<4> VisibleConversions; 549 550 /// Definition - The declaration which defines this record. 551 CXXRecordDecl *Definition; 552 553 /// FirstFriend - The first friend declaration in this class, or 554 /// null if there aren't any. This is actually currently stored 555 /// in reverse order. 556 FriendDecl *FirstFriend; 557 558 /// \brief Retrieve the set of direct base classes. 559 CXXBaseSpecifier *getBases() const { 560 return Bases.get(Definition->getASTContext().getExternalSource()); 561 } 562 563 /// \brief Retrieve the set of virtual base classes. 564 CXXBaseSpecifier *getVBases() const { 565 return VBases.get(Definition->getASTContext().getExternalSource()); 566 } 567 } *DefinitionData; 568 569 /// \brief Describes a C++ closure type (generated by a lambda expression). 570 struct LambdaDefinitionData : public DefinitionData { 571 typedef LambdaExpr::Capture Capture; 572 573 LambdaDefinitionData(CXXRecordDecl *D, bool Dependent) 574 : DefinitionData(D), Dependent(Dependent), NumCaptures(0), 575 NumExplicitCaptures(0), ManglingNumber(0), ContextDecl(0), Captures(0) 576 { 577 IsLambda = true; 578 } 579 580 /// \brief Whether this lambda is known to be dependent, even if its 581 /// context isn't dependent. 582 /// 583 /// A lambda with a non-dependent context can be dependent if it occurs 584 /// within the default argument of a function template, because the 585 /// lambda will have been created with the enclosing context as its 586 /// declaration context, rather than function. This is an unfortunate 587 /// artifact of having to parse the default arguments before 588 unsigned Dependent : 1; 589 590 /// \brief The number of captures in this lambda. 591 unsigned NumCaptures : 16; 592 593 /// \brief The number of explicit captures in this lambda. 594 unsigned NumExplicitCaptures : 15; 595 596 /// \brief The number used to indicate this lambda expression for name 597 /// mangling in the Itanium C++ ABI. 598 unsigned ManglingNumber; 599 600 /// \brief The declaration that provides context for this lambda, if the 601 /// actual DeclContext does not suffice. This is used for lambdas that 602 /// occur within default arguments of function parameters within the class 603 /// or within a data member initializer. 604 Decl *ContextDecl; 605 606 /// \brief The list of captures, both explicit and implicit, for this 607 /// lambda. 608 Capture *Captures; 609 }; 610 611 struct DefinitionData &data() { 612 assert(DefinitionData && "queried property of class with no definition"); 613 return *DefinitionData; 614 } 615 616 const struct DefinitionData &data() const { 617 assert(DefinitionData && "queried property of class with no definition"); 618 return *DefinitionData; 619 } 620 621 struct LambdaDefinitionData &getLambdaData() const { 622 assert(DefinitionData && "queried property of lambda with no definition"); 623 assert(DefinitionData->IsLambda && 624 "queried lambda property of non-lambda class"); 625 return static_cast<LambdaDefinitionData &>(*DefinitionData); 626 } 627 628 /// \brief The template or declaration that this declaration 629 /// describes or was instantiated from, respectively. 630 /// 631 /// For non-templates, this value will be NULL. For record 632 /// declarations that describe a class template, this will be a 633 /// pointer to a ClassTemplateDecl. For member 634 /// classes of class template specializations, this will be the 635 /// MemberSpecializationInfo referring to the member class that was 636 /// instantiated or specialized. 637 llvm::PointerUnion<ClassTemplateDecl*, MemberSpecializationInfo*> 638 TemplateOrInstantiation; 639 640 friend class DeclContext; 641 friend class LambdaExpr; 642 643 /// \brief Notify the class that member has been added. 644 /// 645 /// This routine helps maintain information about the class based on which 646 /// members have been added. It will be invoked by DeclContext::addDecl() 647 /// whenever a member is added to this record. 648 void addedMember(Decl *D); 649 650 void markedVirtualFunctionPure(); 651 friend void FunctionDecl::setPure(bool); 652 653 friend class ASTNodeImporter; 654 655protected: 656 CXXRecordDecl(Kind K, TagKind TK, DeclContext *DC, 657 SourceLocation StartLoc, SourceLocation IdLoc, 658 IdentifierInfo *Id, CXXRecordDecl *PrevDecl); 659 660public: 661 /// base_class_iterator - Iterator that traverses the base classes 662 /// of a class. 663 typedef CXXBaseSpecifier* base_class_iterator; 664 665 /// base_class_const_iterator - Iterator that traverses the base 666 /// classes of a class. 667 typedef const CXXBaseSpecifier* base_class_const_iterator; 668 669 /// reverse_base_class_iterator = Iterator that traverses the base classes 670 /// of a class in reverse order. 671 typedef std::reverse_iterator<base_class_iterator> 672 reverse_base_class_iterator; 673 674 /// reverse_base_class_iterator = Iterator that traverses the base classes 675 /// of a class in reverse order. 676 typedef std::reverse_iterator<base_class_const_iterator> 677 reverse_base_class_const_iterator; 678 679 virtual CXXRecordDecl *getCanonicalDecl() { 680 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 681 } 682 virtual const CXXRecordDecl *getCanonicalDecl() const { 683 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 684 } 685 686 const CXXRecordDecl *getPreviousDecl() const { 687 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 688 } 689 CXXRecordDecl *getPreviousDecl() { 690 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 691 } 692 693 const CXXRecordDecl *getMostRecentDecl() const { 694 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 695 } 696 CXXRecordDecl *getMostRecentDecl() { 697 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 698 } 699 700 CXXRecordDecl *getDefinition() const { 701 if (!DefinitionData) return 0; 702 return data().Definition; 703 } 704 705 bool hasDefinition() const { return DefinitionData != 0; } 706 707 static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC, 708 SourceLocation StartLoc, SourceLocation IdLoc, 709 IdentifierInfo *Id, CXXRecordDecl* PrevDecl=0, 710 bool DelayTypeCreation = false); 711 static CXXRecordDecl *CreateLambda(const ASTContext &C, DeclContext *DC, 712 SourceLocation Loc, bool DependentLambda); 713 static CXXRecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID); 714 715 bool isDynamicClass() const { 716 return data().Polymorphic || data().NumVBases != 0; 717 } 718 719 /// setBases - Sets the base classes of this struct or class. 720 void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases); 721 722 /// getNumBases - Retrieves the number of base classes of this 723 /// class. 724 unsigned getNumBases() const { return data().NumBases; } 725 726 base_class_iterator bases_begin() { return data().getBases(); } 727 base_class_const_iterator bases_begin() const { return data().getBases(); } 728 base_class_iterator bases_end() { return bases_begin() + data().NumBases; } 729 base_class_const_iterator bases_end() const { 730 return bases_begin() + data().NumBases; 731 } 732 reverse_base_class_iterator bases_rbegin() { 733 return reverse_base_class_iterator(bases_end()); 734 } 735 reverse_base_class_const_iterator bases_rbegin() const { 736 return reverse_base_class_const_iterator(bases_end()); 737 } 738 reverse_base_class_iterator bases_rend() { 739 return reverse_base_class_iterator(bases_begin()); 740 } 741 reverse_base_class_const_iterator bases_rend() const { 742 return reverse_base_class_const_iterator(bases_begin()); 743 } 744 745 /// getNumVBases - Retrieves the number of virtual base classes of this 746 /// class. 747 unsigned getNumVBases() const { return data().NumVBases; } 748 749 base_class_iterator vbases_begin() { return data().getVBases(); } 750 base_class_const_iterator vbases_begin() const { return data().getVBases(); } 751 base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; } 752 base_class_const_iterator vbases_end() const { 753 return vbases_begin() + data().NumVBases; 754 } 755 reverse_base_class_iterator vbases_rbegin() { 756 return reverse_base_class_iterator(vbases_end()); 757 } 758 reverse_base_class_const_iterator vbases_rbegin() const { 759 return reverse_base_class_const_iterator(vbases_end()); 760 } 761 reverse_base_class_iterator vbases_rend() { 762 return reverse_base_class_iterator(vbases_begin()); 763 } 764 reverse_base_class_const_iterator vbases_rend() const { 765 return reverse_base_class_const_iterator(vbases_begin()); 766 } 767 768 /// \brief Determine whether this class has any dependent base classes. 769 bool hasAnyDependentBases() const; 770 771 /// Iterator access to method members. The method iterator visits 772 /// all method members of the class, including non-instance methods, 773 /// special methods, etc. 774 typedef specific_decl_iterator<CXXMethodDecl> method_iterator; 775 776 /// method_begin - Method begin iterator. Iterates in the order the methods 777 /// were declared. 778 method_iterator method_begin() const { 779 return method_iterator(decls_begin()); 780 } 781 /// method_end - Method end iterator. 782 method_iterator method_end() const { 783 return method_iterator(decls_end()); 784 } 785 786 /// Iterator access to constructor members. 787 typedef specific_decl_iterator<CXXConstructorDecl> ctor_iterator; 788 789 ctor_iterator ctor_begin() const { 790 return ctor_iterator(decls_begin()); 791 } 792 ctor_iterator ctor_end() const { 793 return ctor_iterator(decls_end()); 794 } 795 796 /// An iterator over friend declarations. All of these are defined 797 /// in DeclFriend.h. 798 class friend_iterator; 799 friend_iterator friend_begin() const; 800 friend_iterator friend_end() const; 801 void pushFriendDecl(FriendDecl *FD); 802 803 /// Determines whether this record has any friends. 804 bool hasFriends() const { 805 return data().FirstFriend != 0; 806 } 807 808 /// \brief Determine if we need to declare a default constructor for 809 /// this class. 810 /// 811 /// This value is used for lazy creation of default constructors. 812 bool needsImplicitDefaultConstructor() const { 813 return !data().UserDeclaredConstructor && 814 !data().DeclaredDefaultConstructor; 815 } 816 817 /// hasDeclaredDefaultConstructor - Whether this class's default constructor 818 /// has been declared (either explicitly or implicitly). 819 bool hasDeclaredDefaultConstructor() const { 820 return data().DeclaredDefaultConstructor; 821 } 822 823 /// hasConstCopyConstructor - Determines whether this class has a 824 /// copy constructor that accepts a const-qualified argument. 825 bool hasConstCopyConstructor() const; 826 827 /// getCopyConstructor - Returns the copy constructor for this class 828 CXXConstructorDecl *getCopyConstructor(unsigned TypeQuals) const; 829 830 /// getMoveConstructor - Returns the move constructor for this class 831 CXXConstructorDecl *getMoveConstructor() const; 832 833 /// \brief Retrieve the copy-assignment operator for this class, if available. 834 /// 835 /// This routine attempts to find the copy-assignment operator for this 836 /// class, using a simplistic form of overload resolution. 837 /// 838 /// \param ArgIsConst Whether the argument to the copy-assignment operator 839 /// is const-qualified. 840 /// 841 /// \returns The copy-assignment operator that can be invoked, or NULL if 842 /// a unique copy-assignment operator could not be found. 843 CXXMethodDecl *getCopyAssignmentOperator(bool ArgIsConst) const; 844 845 /// getMoveAssignmentOperator - Returns the move assignment operator for this 846 /// class 847 CXXMethodDecl *getMoveAssignmentOperator() const; 848 849 /// hasUserDeclaredConstructor - Whether this class has any 850 /// user-declared constructors. When true, a default constructor 851 /// will not be implicitly declared. 852 bool hasUserDeclaredConstructor() const { 853 return data().UserDeclaredConstructor; 854 } 855 856 /// hasUserProvidedDefaultconstructor - Whether this class has a 857 /// user-provided default constructor per C++0x. 858 bool hasUserProvidedDefaultConstructor() const { 859 return data().UserProvidedDefaultConstructor; 860 } 861 862 /// hasUserDeclaredCopyConstructor - Whether this class has a 863 /// user-declared copy constructor. When false, a copy constructor 864 /// will be implicitly declared. 865 bool hasUserDeclaredCopyConstructor() const { 866 return data().UserDeclaredCopyConstructor; 867 } 868 869 /// \brief Determine whether this class has had its copy constructor 870 /// declared, either via the user or via an implicit declaration. 871 /// 872 /// This value is used for lazy creation of copy constructors. 873 bool hasDeclaredCopyConstructor() const { 874 return data().DeclaredCopyConstructor; 875 } 876 877 /// hasUserDeclaredMoveOperation - Whether this class has a user- 878 /// declared move constructor or assignment operator. When false, a 879 /// move constructor and assignment operator may be implicitly declared. 880 bool hasUserDeclaredMoveOperation() const { 881 return data().UserDeclaredMoveConstructor || 882 data().UserDeclaredMoveAssignment; 883 } 884 885 /// \brief Determine whether this class has had a move constructor 886 /// declared by the user. 887 bool hasUserDeclaredMoveConstructor() const { 888 return data().UserDeclaredMoveConstructor; 889 } 890 891 /// \brief Determine whether this class has had a move constructor 892 /// declared. 893 bool hasDeclaredMoveConstructor() const { 894 return data().DeclaredMoveConstructor; 895 } 896 897 /// \brief Determine whether implicit move constructor generation for this 898 /// class has failed before. 899 bool hasFailedImplicitMoveConstructor() const { 900 return data().FailedImplicitMoveConstructor; 901 } 902 903 /// \brief Set whether implicit move constructor generation for this class 904 /// has failed before. 905 void setFailedImplicitMoveConstructor(bool Failed = true) { 906 data().FailedImplicitMoveConstructor = Failed; 907 } 908 909 /// \brief Determine whether this class should get an implicit move 910 /// constructor or if any existing special member function inhibits this. 911 /// 912 /// Covers all bullets of C++0x [class.copy]p9 except the last, that the 913 /// constructor wouldn't be deleted, which is only looked up from a cached 914 /// result. 915 bool needsImplicitMoveConstructor() const { 916 return !hasFailedImplicitMoveConstructor() && 917 !hasDeclaredMoveConstructor() && 918 !hasUserDeclaredCopyConstructor() && 919 !hasUserDeclaredCopyAssignment() && 920 !hasUserDeclaredMoveAssignment() && 921 !hasUserDeclaredDestructor(); 922 } 923 924 /// hasUserDeclaredCopyAssignment - Whether this class has a 925 /// user-declared copy assignment operator. When false, a copy 926 /// assigment operator will be implicitly declared. 927 bool hasUserDeclaredCopyAssignment() const { 928 return data().UserDeclaredCopyAssignment; 929 } 930 931 /// \brief Determine whether this class has had its copy assignment operator 932 /// declared, either via the user or via an implicit declaration. 933 /// 934 /// This value is used for lazy creation of copy assignment operators. 935 bool hasDeclaredCopyAssignment() const { 936 return data().DeclaredCopyAssignment; 937 } 938 939 /// \brief Determine whether this class has had a move assignment 940 /// declared by the user. 941 bool hasUserDeclaredMoveAssignment() const { 942 return data().UserDeclaredMoveAssignment; 943 } 944 945 /// hasDeclaredMoveAssignment - Whether this class has a 946 /// declared move assignment operator. 947 bool hasDeclaredMoveAssignment() const { 948 return data().DeclaredMoveAssignment; 949 } 950 951 /// \brief Determine whether implicit move assignment generation for this 952 /// class has failed before. 953 bool hasFailedImplicitMoveAssignment() const { 954 return data().FailedImplicitMoveAssignment; 955 } 956 957 /// \brief Set whether implicit move assignment generation for this class 958 /// has failed before. 959 void setFailedImplicitMoveAssignment(bool Failed = true) { 960 data().FailedImplicitMoveAssignment = Failed; 961 } 962 963 /// \brief Determine whether this class should get an implicit move 964 /// assignment operator or if any existing special member function inhibits 965 /// this. 966 /// 967 /// Covers all bullets of C++0x [class.copy]p20 except the last, that the 968 /// constructor wouldn't be deleted. 969 bool needsImplicitMoveAssignment() const { 970 return !hasFailedImplicitMoveAssignment() && 971 !hasDeclaredMoveAssignment() && 972 !hasUserDeclaredCopyConstructor() && 973 !hasUserDeclaredCopyAssignment() && 974 !hasUserDeclaredMoveConstructor() && 975 !hasUserDeclaredDestructor(); 976 } 977 978 /// hasUserDeclaredDestructor - Whether this class has a 979 /// user-declared destructor. When false, a destructor will be 980 /// implicitly declared. 981 bool hasUserDeclaredDestructor() const { 982 return data().UserDeclaredDestructor; 983 } 984 985 /// \brief Determine whether this class has had its destructor declared, 986 /// either via the user or via an implicit declaration. 987 /// 988 /// This value is used for lazy creation of destructors. 989 bool hasDeclaredDestructor() const { return data().DeclaredDestructor; } 990 991 /// \brief Determine whether this class describes a lambda function object. 992 bool isLambda() const { return hasDefinition() && data().IsLambda; } 993 994 /// \brief For a closure type, retrieve the mapping from captured 995 /// variables and this to the non-static data members that store the 996 /// values or references of the captures. 997 /// 998 /// \param Captures Will be populated with the mapping from captured 999 /// variables to the corresponding fields. 1000 /// 1001 /// \param ThisCapture Will be set to the field declaration for the 1002 /// 'this' capture. 1003 void getCaptureFields(llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures, 1004 FieldDecl *&ThisCapture) const; 1005 1006 typedef const LambdaExpr::Capture* capture_const_iterator; 1007 capture_const_iterator captures_begin() const { 1008 return isLambda() ? getLambdaData().Captures : NULL; 1009 } 1010 capture_const_iterator captures_end() const { 1011 return isLambda() ? captures_begin() + getLambdaData().NumCaptures : NULL; 1012 } 1013 1014 /// getConversions - Retrieve the overload set containing all of the 1015 /// conversion functions in this class. 1016 UnresolvedSetImpl *getConversionFunctions() { 1017 return &data().Conversions; 1018 } 1019 const UnresolvedSetImpl *getConversionFunctions() const { 1020 return &data().Conversions; 1021 } 1022 1023 typedef UnresolvedSetImpl::iterator conversion_iterator; 1024 conversion_iterator conversion_begin() const { 1025 return getConversionFunctions()->begin(); 1026 } 1027 conversion_iterator conversion_end() const { 1028 return getConversionFunctions()->end(); 1029 } 1030 1031 /// Removes a conversion function from this class. The conversion 1032 /// function must currently be a member of this class. Furthermore, 1033 /// this class must currently be in the process of being defined. 1034 void removeConversion(const NamedDecl *Old); 1035 1036 /// getVisibleConversionFunctions - get all conversion functions visible 1037 /// in current class; including conversion function templates. 1038 const UnresolvedSetImpl *getVisibleConversionFunctions(); 1039 1040 /// isAggregate - Whether this class is an aggregate (C++ 1041 /// [dcl.init.aggr]), which is a class with no user-declared 1042 /// constructors, no private or protected non-static data members, 1043 /// no base classes, and no virtual functions (C++ [dcl.init.aggr]p1). 1044 bool isAggregate() const { return data().Aggregate; } 1045 1046 /// hasInClassInitializer - Whether this class has any in-class initializers 1047 /// for non-static data members. 1048 bool hasInClassInitializer() const { return data().HasInClassInitializer; } 1049 1050 /// isPOD - Whether this class is a POD-type (C++ [class]p4), which is a class 1051 /// that is an aggregate that has no non-static non-POD data members, no 1052 /// reference data members, no user-defined copy assignment operator and no 1053 /// user-defined destructor. 1054 bool isPOD() const { return data().PlainOldData; } 1055 1056 /// \brief True if this class is C-like, without C++-specific features, e.g. 1057 /// it contains only public fields, no bases, tag kind is not 'class', etc. 1058 bool isCLike() const; 1059 1060 /// isEmpty - Whether this class is empty (C++0x [meta.unary.prop]), which 1061 /// means it has a virtual function, virtual base, data member (other than 1062 /// 0-width bit-field) or inherits from a non-empty class. Does NOT include 1063 /// a check for union-ness. 1064 bool isEmpty() const { return data().Empty; } 1065 1066 /// isPolymorphic - Whether this class is polymorphic (C++ [class.virtual]), 1067 /// which means that the class contains or inherits a virtual function. 1068 bool isPolymorphic() const { return data().Polymorphic; } 1069 1070 /// isAbstract - Whether this class is abstract (C++ [class.abstract]), 1071 /// which means that the class contains or inherits a pure virtual function. 1072 bool isAbstract() const { return data().Abstract; } 1073 1074 /// isStandardLayout - Whether this class has standard layout 1075 /// (C++ [class]p7) 1076 bool isStandardLayout() const { return data().IsStandardLayout; } 1077 1078 /// \brief Whether this class, or any of its class subobjects, contains a 1079 /// mutable field. 1080 bool hasMutableFields() const { return data().HasMutableFields; } 1081 1082 /// hasTrivialDefaultConstructor - Whether this class has a trivial default 1083 /// constructor (C++11 [class.ctor]p5). 1084 bool hasTrivialDefaultConstructor() const { 1085 return data().HasTrivialDefaultConstructor && 1086 (!data().UserDeclaredConstructor || 1087 data().DeclaredDefaultConstructor); 1088 } 1089 1090 /// hasConstexprNonCopyMoveConstructor - Whether this class has at least one 1091 /// constexpr constructor other than the copy or move constructors. 1092 bool hasConstexprNonCopyMoveConstructor() const { 1093 return data().HasConstexprNonCopyMoveConstructor || 1094 (!hasUserDeclaredConstructor() && 1095 defaultedDefaultConstructorIsConstexpr()); 1096 } 1097 1098 /// defaultedDefaultConstructorIsConstexpr - Whether a defaulted default 1099 /// constructor for this class would be constexpr. 1100 bool defaultedDefaultConstructorIsConstexpr() const { 1101 return data().DefaultedDefaultConstructorIsConstexpr && 1102 (!isUnion() || hasInClassInitializer()); 1103 } 1104 1105 /// defaultedCopyConstructorIsConstexpr - Whether a defaulted copy 1106 /// constructor for this class would be constexpr. 1107 bool defaultedCopyConstructorIsConstexpr() const { 1108 return data().DefaultedCopyConstructorIsConstexpr; 1109 } 1110 1111 /// defaultedMoveConstructorIsConstexpr - Whether a defaulted move 1112 /// constructor for this class would be constexpr. 1113 bool defaultedMoveConstructorIsConstexpr() const { 1114 return data().DefaultedMoveConstructorIsConstexpr; 1115 } 1116 1117 /// hasConstexprDefaultConstructor - Whether this class has a constexpr 1118 /// default constructor. 1119 bool hasConstexprDefaultConstructor() const { 1120 return data().HasConstexprDefaultConstructor || 1121 (!data().UserDeclaredConstructor && 1122 defaultedDefaultConstructorIsConstexpr() && isLiteral()); 1123 } 1124 1125 /// hasConstexprCopyConstructor - Whether this class has a constexpr copy 1126 /// constructor. 1127 bool hasConstexprCopyConstructor() const { 1128 return data().HasConstexprCopyConstructor || 1129 (!data().DeclaredCopyConstructor && 1130 data().DefaultedCopyConstructorIsConstexpr && isLiteral()); 1131 } 1132 1133 /// hasConstexprMoveConstructor - Whether this class has a constexpr move 1134 /// constructor. 1135 bool hasConstexprMoveConstructor() const { 1136 return data().HasConstexprMoveConstructor || 1137 (needsImplicitMoveConstructor() && 1138 data().DefaultedMoveConstructorIsConstexpr && isLiteral()); 1139 } 1140 1141 // hasTrivialCopyConstructor - Whether this class has a trivial copy 1142 // constructor (C++ [class.copy]p6, C++0x [class.copy]p13) 1143 bool hasTrivialCopyConstructor() const { 1144 return data().HasTrivialCopyConstructor; 1145 } 1146 1147 // hasTrivialMoveConstructor - Whether this class has a trivial move 1148 // constructor (C++0x [class.copy]p13) 1149 bool hasTrivialMoveConstructor() const { 1150 return data().HasTrivialMoveConstructor; 1151 } 1152 1153 // hasTrivialCopyAssignment - Whether this class has a trivial copy 1154 // assignment operator (C++ [class.copy]p11, C++0x [class.copy]p27) 1155 bool hasTrivialCopyAssignment() const { 1156 return data().HasTrivialCopyAssignment; 1157 } 1158 1159 // hasTrivialMoveAssignment - Whether this class has a trivial move 1160 // assignment operator (C++0x [class.copy]p27) 1161 bool hasTrivialMoveAssignment() const { 1162 return data().HasTrivialMoveAssignment; 1163 } 1164 1165 // hasTrivialDestructor - Whether this class has a trivial destructor 1166 // (C++ [class.dtor]p3) 1167 bool hasTrivialDestructor() const { return data().HasTrivialDestructor; } 1168 1169 // hasIrrelevantDestructor - Whether this class has a destructor which has no 1170 // semantic effect. Any such destructor will be trivial, public, defaulted 1171 // and not deleted, and will call only irrelevant destructors. 1172 bool hasIrrelevantDestructor() const { 1173 return data().HasIrrelevantDestructor; 1174 } 1175 1176 // hasNonLiteralTypeFieldsOrBases - Whether this class has a non-literal or 1177 // volatile type non-static data member or base class. 1178 bool hasNonLiteralTypeFieldsOrBases() const { 1179 return data().HasNonLiteralTypeFieldsOrBases; 1180 } 1181 1182 // isTriviallyCopyable - Whether this class is considered trivially copyable 1183 // (C++0x [class]p6). 1184 bool isTriviallyCopyable() const; 1185 1186 // isTrivial - Whether this class is considered trivial 1187 // 1188 // C++0x [class]p6 1189 // A trivial class is a class that has a trivial default constructor and 1190 // is trivially copiable. 1191 bool isTrivial() const { 1192 return isTriviallyCopyable() && hasTrivialDefaultConstructor(); 1193 } 1194 1195 // isLiteral - Whether this class is a literal type. 1196 // 1197 // C++11 [basic.types]p10 1198 // A class type that has all the following properties: 1199 // -- it has a trivial destructor 1200 // -- every constructor call and full-expression in the 1201 // brace-or-equal-intializers for non-static data members (if any) is 1202 // a constant expression. 1203 // -- it is an aggregate type or has at least one constexpr constructor or 1204 // constructor template that is not a copy or move constructor, and 1205 // -- all of its non-static data members and base classes are of literal 1206 // types 1207 // 1208 // We resolve DR1361 by ignoring the second bullet. We resolve DR1452 by 1209 // treating types with trivial default constructors as literal types. 1210 bool isLiteral() const { 1211 return hasTrivialDestructor() && 1212 (isAggregate() || hasConstexprNonCopyMoveConstructor() || 1213 hasTrivialDefaultConstructor()) && 1214 !hasNonLiteralTypeFieldsOrBases(); 1215 } 1216 1217 /// \brief If this record is an instantiation of a member class, 1218 /// retrieves the member class from which it was instantiated. 1219 /// 1220 /// This routine will return non-NULL for (non-templated) member 1221 /// classes of class templates. For example, given: 1222 /// 1223 /// \code 1224 /// template<typename T> 1225 /// struct X { 1226 /// struct A { }; 1227 /// }; 1228 /// \endcode 1229 /// 1230 /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl 1231 /// whose parent is the class template specialization X<int>. For 1232 /// this declaration, getInstantiatedFromMemberClass() will return 1233 /// the CXXRecordDecl X<T>::A. When a complete definition of 1234 /// X<int>::A is required, it will be instantiated from the 1235 /// declaration returned by getInstantiatedFromMemberClass(). 1236 CXXRecordDecl *getInstantiatedFromMemberClass() const; 1237 1238 /// \brief If this class is an instantiation of a member class of a 1239 /// class template specialization, retrieves the member specialization 1240 /// information. 1241 MemberSpecializationInfo *getMemberSpecializationInfo() const; 1242 1243 /// \brief Specify that this record is an instantiation of the 1244 /// member class RD. 1245 void setInstantiationOfMemberClass(CXXRecordDecl *RD, 1246 TemplateSpecializationKind TSK); 1247 1248 /// \brief Retrieves the class template that is described by this 1249 /// class declaration. 1250 /// 1251 /// Every class template is represented as a ClassTemplateDecl and a 1252 /// CXXRecordDecl. The former contains template properties (such as 1253 /// the template parameter lists) while the latter contains the 1254 /// actual description of the template's 1255 /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the 1256 /// CXXRecordDecl that from a ClassTemplateDecl, while 1257 /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from 1258 /// a CXXRecordDecl. 1259 ClassTemplateDecl *getDescribedClassTemplate() const { 1260 return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl*>(); 1261 } 1262 1263 void setDescribedClassTemplate(ClassTemplateDecl *Template) { 1264 TemplateOrInstantiation = Template; 1265 } 1266 1267 /// \brief Determine whether this particular class is a specialization or 1268 /// instantiation of a class template or member class of a class template, 1269 /// and how it was instantiated or specialized. 1270 TemplateSpecializationKind getTemplateSpecializationKind() const; 1271 1272 /// \brief Set the kind of specialization or template instantiation this is. 1273 void setTemplateSpecializationKind(TemplateSpecializationKind TSK); 1274 1275 /// getDestructor - Returns the destructor decl for this class. 1276 CXXDestructorDecl *getDestructor() const; 1277 1278 /// isLocalClass - If the class is a local class [class.local], returns 1279 /// the enclosing function declaration. 1280 const FunctionDecl *isLocalClass() const { 1281 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext())) 1282 return RD->isLocalClass(); 1283 1284 return dyn_cast<FunctionDecl>(getDeclContext()); 1285 } 1286 1287 /// \brief Determine whether this class is derived from the class \p Base. 1288 /// 1289 /// This routine only determines whether this class is derived from \p Base, 1290 /// but does not account for factors that may make a Derived -> Base class 1291 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1292 /// base class subobjects. 1293 /// 1294 /// \param Base the base class we are searching for. 1295 /// 1296 /// \returns true if this class is derived from Base, false otherwise. 1297 bool isDerivedFrom(const CXXRecordDecl *Base) const; 1298 1299 /// \brief Determine whether this class is derived from the type \p Base. 1300 /// 1301 /// This routine only determines whether this class is derived from \p Base, 1302 /// but does not account for factors that may make a Derived -> Base class 1303 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1304 /// base class subobjects. 1305 /// 1306 /// \param Base the base class we are searching for. 1307 /// 1308 /// \param Paths will contain the paths taken from the current class to the 1309 /// given \p Base class. 1310 /// 1311 /// \returns true if this class is derived from Base, false otherwise. 1312 /// 1313 /// \todo add a separate paramaeter to configure IsDerivedFrom, rather than 1314 /// tangling input and output in \p Paths 1315 bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const; 1316 1317 /// \brief Determine whether this class is virtually derived from 1318 /// the class \p Base. 1319 /// 1320 /// This routine only determines whether this class is virtually 1321 /// derived from \p Base, but does not account for factors that may 1322 /// make a Derived -> Base class ill-formed, such as 1323 /// private/protected inheritance or multiple, ambiguous base class 1324 /// subobjects. 1325 /// 1326 /// \param Base the base class we are searching for. 1327 /// 1328 /// \returns true if this class is virtually derived from Base, 1329 /// false otherwise. 1330 bool isVirtuallyDerivedFrom(CXXRecordDecl *Base) const; 1331 1332 /// \brief Determine whether this class is provably not derived from 1333 /// the type \p Base. 1334 bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const; 1335 1336 /// \brief Function type used by forallBases() as a callback. 1337 /// 1338 /// \param Base the definition of the base class 1339 /// 1340 /// \returns true if this base matched the search criteria 1341 typedef bool ForallBasesCallback(const CXXRecordDecl *BaseDefinition, 1342 void *UserData); 1343 1344 /// \brief Determines if the given callback holds for all the direct 1345 /// or indirect base classes of this type. 1346 /// 1347 /// The class itself does not count as a base class. This routine 1348 /// returns false if the class has non-computable base classes. 1349 /// 1350 /// \param AllowShortCircuit if false, forces the callback to be called 1351 /// for every base class, even if a dependent or non-matching base was 1352 /// found. 1353 bool forallBases(ForallBasesCallback *BaseMatches, void *UserData, 1354 bool AllowShortCircuit = true) const; 1355 1356 /// \brief Function type used by lookupInBases() to determine whether a 1357 /// specific base class subobject matches the lookup criteria. 1358 /// 1359 /// \param Specifier the base-class specifier that describes the inheritance 1360 /// from the base class we are trying to match. 1361 /// 1362 /// \param Path the current path, from the most-derived class down to the 1363 /// base named by the \p Specifier. 1364 /// 1365 /// \param UserData a single pointer to user-specified data, provided to 1366 /// lookupInBases(). 1367 /// 1368 /// \returns true if this base matched the search criteria, false otherwise. 1369 typedef bool BaseMatchesCallback(const CXXBaseSpecifier *Specifier, 1370 CXXBasePath &Path, 1371 void *UserData); 1372 1373 /// \brief Look for entities within the base classes of this C++ class, 1374 /// transitively searching all base class subobjects. 1375 /// 1376 /// This routine uses the callback function \p BaseMatches to find base 1377 /// classes meeting some search criteria, walking all base class subobjects 1378 /// and populating the given \p Paths structure with the paths through the 1379 /// inheritance hierarchy that resulted in a match. On a successful search, 1380 /// the \p Paths structure can be queried to retrieve the matching paths and 1381 /// to determine if there were any ambiguities. 1382 /// 1383 /// \param BaseMatches callback function used to determine whether a given 1384 /// base matches the user-defined search criteria. 1385 /// 1386 /// \param UserData user data pointer that will be provided to \p BaseMatches. 1387 /// 1388 /// \param Paths used to record the paths from this class to its base class 1389 /// subobjects that match the search criteria. 1390 /// 1391 /// \returns true if there exists any path from this class to a base class 1392 /// subobject that matches the search criteria. 1393 bool lookupInBases(BaseMatchesCallback *BaseMatches, void *UserData, 1394 CXXBasePaths &Paths) const; 1395 1396 /// \brief Base-class lookup callback that determines whether the given 1397 /// base class specifier refers to a specific class declaration. 1398 /// 1399 /// This callback can be used with \c lookupInBases() to determine whether 1400 /// a given derived class has is a base class subobject of a particular type. 1401 /// The user data pointer should refer to the canonical CXXRecordDecl of the 1402 /// base class that we are searching for. 1403 static bool FindBaseClass(const CXXBaseSpecifier *Specifier, 1404 CXXBasePath &Path, void *BaseRecord); 1405 1406 /// \brief Base-class lookup callback that determines whether the 1407 /// given base class specifier refers to a specific class 1408 /// declaration and describes virtual derivation. 1409 /// 1410 /// This callback can be used with \c lookupInBases() to determine 1411 /// whether a given derived class has is a virtual base class 1412 /// subobject of a particular type. The user data pointer should 1413 /// refer to the canonical CXXRecordDecl of the base class that we 1414 /// are searching for. 1415 static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier, 1416 CXXBasePath &Path, void *BaseRecord); 1417 1418 /// \brief Base-class lookup callback that determines whether there exists 1419 /// a tag with the given name. 1420 /// 1421 /// This callback can be used with \c lookupInBases() to find tag members 1422 /// of the given name within a C++ class hierarchy. The user data pointer 1423 /// is an opaque \c DeclarationName pointer. 1424 static bool FindTagMember(const CXXBaseSpecifier *Specifier, 1425 CXXBasePath &Path, void *Name); 1426 1427 /// \brief Base-class lookup callback that determines whether there exists 1428 /// a member with the given name. 1429 /// 1430 /// This callback can be used with \c lookupInBases() to find members 1431 /// of the given name within a C++ class hierarchy. The user data pointer 1432 /// is an opaque \c DeclarationName pointer. 1433 static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier, 1434 CXXBasePath &Path, void *Name); 1435 1436 /// \brief Base-class lookup callback that determines whether there exists 1437 /// a member with the given name that can be used in a nested-name-specifier. 1438 /// 1439 /// This callback can be used with \c lookupInBases() to find membes of 1440 /// the given name within a C++ class hierarchy that can occur within 1441 /// nested-name-specifiers. 1442 static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier, 1443 CXXBasePath &Path, 1444 void *UserData); 1445 1446 /// \brief Retrieve the final overriders for each virtual member 1447 /// function in the class hierarchy where this class is the 1448 /// most-derived class in the class hierarchy. 1449 void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const; 1450 1451 /// \brief Get the indirect primary bases for this class. 1452 void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const; 1453 1454 /// viewInheritance - Renders and displays an inheritance diagram 1455 /// for this C++ class and all of its base classes (transitively) using 1456 /// GraphViz. 1457 void viewInheritance(ASTContext& Context) const; 1458 1459 /// MergeAccess - Calculates the access of a decl that is reached 1460 /// along a path. 1461 static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, 1462 AccessSpecifier DeclAccess) { 1463 assert(DeclAccess != AS_none); 1464 if (DeclAccess == AS_private) return AS_none; 1465 return (PathAccess > DeclAccess ? PathAccess : DeclAccess); 1466 } 1467 1468 /// \brief Indicates that the definition of this class is now complete. 1469 virtual void completeDefinition(); 1470 1471 /// \brief Indicates that the definition of this class is now complete, 1472 /// and provides a final overrider map to help determine 1473 /// 1474 /// \param FinalOverriders The final overrider map for this class, which can 1475 /// be provided as an optimization for abstract-class checking. If NULL, 1476 /// final overriders will be computed if they are needed to complete the 1477 /// definition. 1478 void completeDefinition(CXXFinalOverriderMap *FinalOverriders); 1479 1480 /// \brief Determine whether this class may end up being abstract, even though 1481 /// it is not yet known to be abstract. 1482 /// 1483 /// \returns true if this class is not known to be abstract but has any 1484 /// base classes that are abstract. In this case, \c completeDefinition() 1485 /// will need to compute final overriders to determine whether the class is 1486 /// actually abstract. 1487 bool mayBeAbstract() const; 1488 1489 /// \brief If this is the closure type of a lambda expression, retrieve the 1490 /// number to be used for name mangling in the Itanium C++ ABI. 1491 /// 1492 /// Zero indicates that this closure type has internal linkage, so the 1493 /// mangling number does not matter, while a non-zero value indicates which 1494 /// lambda expression this is in this particular context. 1495 unsigned getLambdaManglingNumber() const { 1496 assert(isLambda() && "Not a lambda closure type!"); 1497 return getLambdaData().ManglingNumber; 1498 } 1499 1500 /// \brief Retrieve the declaration that provides additional context for a 1501 /// lambda, when the normal declaration context is not specific enough. 1502 /// 1503 /// Certain contexts (default arguments of in-class function parameters and 1504 /// the initializers of data members) have separate name mangling rules for 1505 /// lambdas within the Itanium C++ ABI. For these cases, this routine provides 1506 /// the declaration in which the lambda occurs, e.g., the function parameter 1507 /// or the non-static data member. Otherwise, it returns NULL to imply that 1508 /// the declaration context suffices. 1509 Decl *getLambdaContextDecl() const { 1510 assert(isLambda() && "Not a lambda closure type!"); 1511 return getLambdaData().ContextDecl; 1512 } 1513 1514 /// \brief Set the mangling number and context declaration for a lambda 1515 /// class. 1516 void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl) { 1517 getLambdaData().ManglingNumber = ManglingNumber; 1518 getLambdaData().ContextDecl = ContextDecl; 1519 } 1520 1521 /// \brief Determine whether this lambda expression was known to be dependent 1522 /// at the time it was created, even if its context does not appear to be 1523 /// dependent. 1524 /// 1525 /// This flag is a workaround for an issue with parsing, where default 1526 /// arguments are parsed before their enclosing function declarations have 1527 /// been created. This means that any lambda expressions within those 1528 /// default arguments will have as their DeclContext the context enclosing 1529 /// the function declaration, which may be non-dependent even when the 1530 /// function declaration itself is dependent. This flag indicates when we 1531 /// know that the lambda is dependent despite that. 1532 bool isDependentLambda() const { 1533 return isLambda() && getLambdaData().Dependent; 1534 } 1535 1536 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1537 static bool classofKind(Kind K) { 1538 return K >= firstCXXRecord && K <= lastCXXRecord; 1539 } 1540 static bool classof(const CXXRecordDecl *D) { return true; } 1541 static bool classof(const ClassTemplateSpecializationDecl *D) { 1542 return true; 1543 } 1544 1545 friend class ASTDeclReader; 1546 friend class ASTDeclWriter; 1547 friend class ASTReader; 1548 friend class ASTWriter; 1549}; 1550 1551/// CXXMethodDecl - Represents a static or instance method of a 1552/// struct/union/class. 1553class CXXMethodDecl : public FunctionDecl { 1554 virtual void anchor(); 1555protected: 1556 CXXMethodDecl(Kind DK, CXXRecordDecl *RD, SourceLocation StartLoc, 1557 const DeclarationNameInfo &NameInfo, 1558 QualType T, TypeSourceInfo *TInfo, 1559 bool isStatic, StorageClass SCAsWritten, bool isInline, 1560 bool isConstexpr, SourceLocation EndLocation) 1561 : FunctionDecl(DK, RD, StartLoc, NameInfo, T, TInfo, 1562 (isStatic ? SC_Static : SC_None), 1563 SCAsWritten, isInline, isConstexpr) { 1564 if (EndLocation.isValid()) 1565 setRangeEnd(EndLocation); 1566 } 1567 1568public: 1569 static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1570 SourceLocation StartLoc, 1571 const DeclarationNameInfo &NameInfo, 1572 QualType T, TypeSourceInfo *TInfo, 1573 bool isStatic, 1574 StorageClass SCAsWritten, 1575 bool isInline, 1576 bool isConstexpr, 1577 SourceLocation EndLocation); 1578 1579 static CXXMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1580 1581 bool isStatic() const { return getStorageClass() == SC_Static; } 1582 bool isInstance() const { return !isStatic(); } 1583 1584 bool isVirtual() const { 1585 CXXMethodDecl *CD = 1586 cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl()); 1587 1588 if (CD->isVirtualAsWritten()) 1589 return true; 1590 1591 return (CD->begin_overridden_methods() != CD->end_overridden_methods()); 1592 } 1593 1594 /// \brief Determine whether this is a usual deallocation function 1595 /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded 1596 /// delete or delete[] operator with a particular signature. 1597 bool isUsualDeallocationFunction() const; 1598 1599 /// \brief Determine whether this is a copy-assignment operator, regardless 1600 /// of whether it was declared implicitly or explicitly. 1601 bool isCopyAssignmentOperator() const; 1602 1603 /// \brief Determine whether this is a move assignment operator. 1604 bool isMoveAssignmentOperator() const; 1605 1606 const CXXMethodDecl *getCanonicalDecl() const { 1607 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1608 } 1609 CXXMethodDecl *getCanonicalDecl() { 1610 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1611 } 1612 1613 /// isUserProvided - True if this method is user-declared and was not 1614 /// deleted or defaulted on its first declaration. 1615 bool isUserProvided() const { 1616 return !(isDeleted() || getCanonicalDecl()->isDefaulted()); 1617 } 1618 1619 /// 1620 void addOverriddenMethod(const CXXMethodDecl *MD); 1621 1622 typedef const CXXMethodDecl *const* method_iterator; 1623 1624 method_iterator begin_overridden_methods() const; 1625 method_iterator end_overridden_methods() const; 1626 unsigned size_overridden_methods() const; 1627 1628 /// getParent - Returns the parent of this method declaration, which 1629 /// is the class in which this method is defined. 1630 const CXXRecordDecl *getParent() const { 1631 return cast<CXXRecordDecl>(FunctionDecl::getParent()); 1632 } 1633 1634 /// getParent - Returns the parent of this method declaration, which 1635 /// is the class in which this method is defined. 1636 CXXRecordDecl *getParent() { 1637 return const_cast<CXXRecordDecl *>( 1638 cast<CXXRecordDecl>(FunctionDecl::getParent())); 1639 } 1640 1641 /// getThisType - Returns the type of 'this' pointer. 1642 /// Should only be called for instance methods. 1643 QualType getThisType(ASTContext &C) const; 1644 1645 unsigned getTypeQualifiers() const { 1646 return getType()->getAs<FunctionProtoType>()->getTypeQuals(); 1647 } 1648 1649 /// \brief Retrieve the ref-qualifier associated with this method. 1650 /// 1651 /// In the following example, \c f() has an lvalue ref-qualifier, \c g() 1652 /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier. 1653 /// \code 1654 /// struct X { 1655 /// void f() &; 1656 /// void g() &&; 1657 /// void h(); 1658 /// }; 1659 /// \endcode 1660 RefQualifierKind getRefQualifier() const { 1661 return getType()->getAs<FunctionProtoType>()->getRefQualifier(); 1662 } 1663 1664 bool hasInlineBody() const; 1665 1666 /// \brief Determine whether this is a lambda closure type's static member 1667 /// function that is used for the result of the lambda's conversion to 1668 /// function pointer (for a lambda with no captures). 1669 /// 1670 /// The function itself, if used, will have a placeholder body that will be 1671 /// supplied by IR generation to either forward to the function call operator 1672 /// or clone the function call operator. 1673 bool isLambdaStaticInvoker() const; 1674 1675 // Implement isa/cast/dyncast/etc. 1676 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1677 static bool classof(const CXXMethodDecl *D) { return true; } 1678 static bool classofKind(Kind K) { 1679 return K >= firstCXXMethod && K <= lastCXXMethod; 1680 } 1681}; 1682 1683/// CXXCtorInitializer - Represents a C++ base or member 1684/// initializer, which is part of a constructor initializer that 1685/// initializes one non-static member variable or one base class. For 1686/// example, in the following, both 'A(a)' and 'f(3.14159)' are member 1687/// initializers: 1688/// 1689/// @code 1690/// class A { }; 1691/// class B : public A { 1692/// float f; 1693/// public: 1694/// B(A& a) : A(a), f(3.14159) { } 1695/// }; 1696/// @endcode 1697class CXXCtorInitializer { 1698 /// \brief Either the base class name/delegating constructor type (stored as 1699 /// a TypeSourceInfo*), an normal field (FieldDecl), or an anonymous field 1700 /// (IndirectFieldDecl*) being initialized. 1701 llvm::PointerUnion3<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *> 1702 Initializee; 1703 1704 /// \brief The source location for the field name or, for a base initializer 1705 /// pack expansion, the location of the ellipsis. In the case of a delegating 1706 /// constructor, it will still include the type's source location as the 1707 /// Initializee points to the CXXConstructorDecl (to allow loop detection). 1708 SourceLocation MemberOrEllipsisLocation; 1709 1710 /// \brief The argument used to initialize the base or member, which may 1711 /// end up constructing an object (when multiple arguments are involved). 1712 /// If 0, this is a field initializer, and the in-class member initializer 1713 /// will be used. 1714 Stmt *Init; 1715 1716 /// LParenLoc - Location of the left paren of the ctor-initializer. 1717 SourceLocation LParenLoc; 1718 1719 /// RParenLoc - Location of the right paren of the ctor-initializer. 1720 SourceLocation RParenLoc; 1721 1722 /// \brief If the initializee is a type, whether that type makes this 1723 /// a delegating initialization. 1724 bool IsDelegating : 1; 1725 1726 /// IsVirtual - If the initializer is a base initializer, this keeps track 1727 /// of whether the base is virtual or not. 1728 bool IsVirtual : 1; 1729 1730 /// IsWritten - Whether or not the initializer is explicitly written 1731 /// in the sources. 1732 bool IsWritten : 1; 1733 1734 /// SourceOrderOrNumArrayIndices - If IsWritten is true, then this 1735 /// number keeps track of the textual order of this initializer in the 1736 /// original sources, counting from 0; otherwise, if IsWritten is false, 1737 /// it stores the number of array index variables stored after this 1738 /// object in memory. 1739 unsigned SourceOrderOrNumArrayIndices : 13; 1740 1741 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1742 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1743 SourceLocation R, VarDecl **Indices, unsigned NumIndices); 1744 1745public: 1746 /// CXXCtorInitializer - Creates a new base-class initializer. 1747 explicit 1748 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual, 1749 SourceLocation L, Expr *Init, SourceLocation R, 1750 SourceLocation EllipsisLoc); 1751 1752 /// CXXCtorInitializer - Creates a new member initializer. 1753 explicit 1754 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1755 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1756 SourceLocation R); 1757 1758 /// CXXCtorInitializer - Creates a new anonymous field initializer. 1759 explicit 1760 CXXCtorInitializer(ASTContext &Context, IndirectFieldDecl *Member, 1761 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1762 SourceLocation R); 1763 1764 /// CXXCtorInitializer - Creates a new delegating Initializer. 1765 explicit 1766 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, 1767 SourceLocation L, Expr *Init, SourceLocation R); 1768 1769 /// \brief Creates a new member initializer that optionally contains 1770 /// array indices used to describe an elementwise initialization. 1771 static CXXCtorInitializer *Create(ASTContext &Context, FieldDecl *Member, 1772 SourceLocation MemberLoc, SourceLocation L, 1773 Expr *Init, SourceLocation R, 1774 VarDecl **Indices, unsigned NumIndices); 1775 1776 /// isBaseInitializer - Returns true when this initializer is 1777 /// initializing a base class. 1778 bool isBaseInitializer() const { 1779 return Initializee.is<TypeSourceInfo*>() && !IsDelegating; 1780 } 1781 1782 /// isMemberInitializer - Returns true when this initializer is 1783 /// initializing a non-static data member. 1784 bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); } 1785 1786 bool isAnyMemberInitializer() const { 1787 return isMemberInitializer() || isIndirectMemberInitializer(); 1788 } 1789 1790 bool isIndirectMemberInitializer() const { 1791 return Initializee.is<IndirectFieldDecl*>(); 1792 } 1793 1794 /// isInClassMemberInitializer - Returns true when this initializer is an 1795 /// implicit ctor initializer generated for a field with an initializer 1796 /// defined on the member declaration. 1797 bool isInClassMemberInitializer() const { 1798 return !Init; 1799 } 1800 1801 /// isDelegatingInitializer - Returns true when this initializer is creating 1802 /// a delegating constructor. 1803 bool isDelegatingInitializer() const { 1804 return Initializee.is<TypeSourceInfo*>() && IsDelegating; 1805 } 1806 1807 /// \brief Determine whether this initializer is a pack expansion. 1808 bool isPackExpansion() const { 1809 return isBaseInitializer() && MemberOrEllipsisLocation.isValid(); 1810 } 1811 1812 // \brief For a pack expansion, returns the location of the ellipsis. 1813 SourceLocation getEllipsisLoc() const { 1814 assert(isPackExpansion() && "Initializer is not a pack expansion"); 1815 return MemberOrEllipsisLocation; 1816 } 1817 1818 /// If this is a base class initializer, returns the type of the 1819 /// base class with location information. Otherwise, returns an NULL 1820 /// type location. 1821 TypeLoc getBaseClassLoc() const; 1822 1823 /// If this is a base class initializer, returns the type of the base class. 1824 /// Otherwise, returns NULL. 1825 const Type *getBaseClass() const; 1826 1827 /// Returns whether the base is virtual or not. 1828 bool isBaseVirtual() const { 1829 assert(isBaseInitializer() && "Must call this on base initializer!"); 1830 1831 return IsVirtual; 1832 } 1833 1834 /// \brief Returns the declarator information for a base class or delegating 1835 /// initializer. 1836 TypeSourceInfo *getTypeSourceInfo() const { 1837 return Initializee.dyn_cast<TypeSourceInfo *>(); 1838 } 1839 1840 /// getMember - If this is a member initializer, returns the 1841 /// declaration of the non-static data member being 1842 /// initialized. Otherwise, returns NULL. 1843 FieldDecl *getMember() const { 1844 if (isMemberInitializer()) 1845 return Initializee.get<FieldDecl*>(); 1846 return 0; 1847 } 1848 FieldDecl *getAnyMember() const { 1849 if (isMemberInitializer()) 1850 return Initializee.get<FieldDecl*>(); 1851 if (isIndirectMemberInitializer()) 1852 return Initializee.get<IndirectFieldDecl*>()->getAnonField(); 1853 return 0; 1854 } 1855 1856 IndirectFieldDecl *getIndirectMember() const { 1857 if (isIndirectMemberInitializer()) 1858 return Initializee.get<IndirectFieldDecl*>(); 1859 return 0; 1860 } 1861 1862 SourceLocation getMemberLocation() const { 1863 return MemberOrEllipsisLocation; 1864 } 1865 1866 /// \brief Determine the source location of the initializer. 1867 SourceLocation getSourceLocation() const; 1868 1869 /// \brief Determine the source range covering the entire initializer. 1870 SourceRange getSourceRange() const LLVM_READONLY; 1871 1872 /// isWritten - Returns true if this initializer is explicitly written 1873 /// in the source code. 1874 bool isWritten() const { return IsWritten; } 1875 1876 /// \brief Return the source position of the initializer, counting from 0. 1877 /// If the initializer was implicit, -1 is returned. 1878 int getSourceOrder() const { 1879 return IsWritten ? static_cast<int>(SourceOrderOrNumArrayIndices) : -1; 1880 } 1881 1882 /// \brief Set the source order of this initializer. This method can only 1883 /// be called once for each initializer; it cannot be called on an 1884 /// initializer having a positive number of (implicit) array indices. 1885 void setSourceOrder(int pos) { 1886 assert(!IsWritten && 1887 "calling twice setSourceOrder() on the same initializer"); 1888 assert(SourceOrderOrNumArrayIndices == 0 && 1889 "setSourceOrder() used when there are implicit array indices"); 1890 assert(pos >= 0 && 1891 "setSourceOrder() used to make an initializer implicit"); 1892 IsWritten = true; 1893 SourceOrderOrNumArrayIndices = static_cast<unsigned>(pos); 1894 } 1895 1896 SourceLocation getLParenLoc() const { return LParenLoc; } 1897 SourceLocation getRParenLoc() const { return RParenLoc; } 1898 1899 /// \brief Determine the number of implicit array indices used while 1900 /// described an array member initialization. 1901 unsigned getNumArrayIndices() const { 1902 return IsWritten ? 0 : SourceOrderOrNumArrayIndices; 1903 } 1904 1905 /// \brief Retrieve a particular array index variable used to 1906 /// describe an array member initialization. 1907 VarDecl *getArrayIndex(unsigned I) { 1908 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1909 return reinterpret_cast<VarDecl **>(this + 1)[I]; 1910 } 1911 const VarDecl *getArrayIndex(unsigned I) const { 1912 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1913 return reinterpret_cast<const VarDecl * const *>(this + 1)[I]; 1914 } 1915 void setArrayIndex(unsigned I, VarDecl *Index) { 1916 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1917 reinterpret_cast<VarDecl **>(this + 1)[I] = Index; 1918 } 1919 ArrayRef<VarDecl *> getArrayIndexes() { 1920 assert(getNumArrayIndices() != 0 && "Getting indexes for non-array init"); 1921 return ArrayRef<VarDecl *>(reinterpret_cast<VarDecl **>(this + 1), 1922 getNumArrayIndices()); 1923 } 1924 1925 /// \brief Get the initializer. This is 0 if this is an in-class initializer 1926 /// for a non-static data member which has not yet been parsed. 1927 Expr *getInit() const { 1928 if (!Init) 1929 return getAnyMember()->getInClassInitializer(); 1930 1931 return static_cast<Expr*>(Init); 1932 } 1933}; 1934 1935/// CXXConstructorDecl - Represents a C++ constructor within a 1936/// class. For example: 1937/// 1938/// @code 1939/// class X { 1940/// public: 1941/// explicit X(int); // represented by a CXXConstructorDecl. 1942/// }; 1943/// @endcode 1944class CXXConstructorDecl : public CXXMethodDecl { 1945 virtual void anchor(); 1946 /// IsExplicitSpecified - Whether this constructor declaration has the 1947 /// 'explicit' keyword specified. 1948 bool IsExplicitSpecified : 1; 1949 1950 /// ImplicitlyDefined - Whether this constructor was implicitly 1951 /// defined by the compiler. When false, the constructor was defined 1952 /// by the user. In C++03, this flag will have the same value as 1953 /// Implicit. In C++0x, however, a constructor that is 1954 /// explicitly defaulted (i.e., defined with " = default") will have 1955 /// @c !Implicit && ImplicitlyDefined. 1956 bool ImplicitlyDefined : 1; 1957 1958 /// Support for base and member initializers. 1959 /// CtorInitializers - The arguments used to initialize the base 1960 /// or member. 1961 CXXCtorInitializer **CtorInitializers; 1962 unsigned NumCtorInitializers; 1963 1964 CXXConstructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1965 const DeclarationNameInfo &NameInfo, 1966 QualType T, TypeSourceInfo *TInfo, 1967 bool isExplicitSpecified, bool isInline, 1968 bool isImplicitlyDeclared, bool isConstexpr) 1969 : CXXMethodDecl(CXXConstructor, RD, StartLoc, NameInfo, T, TInfo, false, 1970 SC_None, isInline, isConstexpr, SourceLocation()), 1971 IsExplicitSpecified(isExplicitSpecified), ImplicitlyDefined(false), 1972 CtorInitializers(0), NumCtorInitializers(0) { 1973 setImplicit(isImplicitlyDeclared); 1974 } 1975 1976public: 1977 static CXXConstructorDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1978 static CXXConstructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1979 SourceLocation StartLoc, 1980 const DeclarationNameInfo &NameInfo, 1981 QualType T, TypeSourceInfo *TInfo, 1982 bool isExplicit, 1983 bool isInline, bool isImplicitlyDeclared, 1984 bool isConstexpr); 1985 1986 /// isExplicitSpecified - Whether this constructor declaration has the 1987 /// 'explicit' keyword specified. 1988 bool isExplicitSpecified() const { return IsExplicitSpecified; } 1989 1990 /// isExplicit - Whether this constructor was marked "explicit" or not. 1991 bool isExplicit() const { 1992 return cast<CXXConstructorDecl>(getFirstDeclaration()) 1993 ->isExplicitSpecified(); 1994 } 1995 1996 /// isImplicitlyDefined - Whether this constructor was implicitly 1997 /// defined. If false, then this constructor was defined by the 1998 /// user. This operation can only be invoked if the constructor has 1999 /// already been defined. 2000 bool isImplicitlyDefined() const { 2001 assert(isThisDeclarationADefinition() && 2002 "Can only get the implicit-definition flag once the " 2003 "constructor has been defined"); 2004 return ImplicitlyDefined; 2005 } 2006 2007 /// setImplicitlyDefined - Set whether this constructor was 2008 /// implicitly defined or not. 2009 void setImplicitlyDefined(bool ID) { 2010 assert(isThisDeclarationADefinition() && 2011 "Can only set the implicit-definition flag once the constructor " 2012 "has been defined"); 2013 ImplicitlyDefined = ID; 2014 } 2015 2016 /// init_iterator - Iterates through the member/base initializer list. 2017 typedef CXXCtorInitializer **init_iterator; 2018 2019 /// init_const_iterator - Iterates through the memberbase initializer list. 2020 typedef CXXCtorInitializer * const * init_const_iterator; 2021 2022 /// init_begin() - Retrieve an iterator to the first initializer. 2023 init_iterator init_begin() { return CtorInitializers; } 2024 /// begin() - Retrieve an iterator to the first initializer. 2025 init_const_iterator init_begin() const { return CtorInitializers; } 2026 2027 /// init_end() - Retrieve an iterator past the last initializer. 2028 init_iterator init_end() { 2029 return CtorInitializers + NumCtorInitializers; 2030 } 2031 /// end() - Retrieve an iterator past the last initializer. 2032 init_const_iterator init_end() const { 2033 return CtorInitializers + NumCtorInitializers; 2034 } 2035 2036 typedef std::reverse_iterator<init_iterator> init_reverse_iterator; 2037 typedef std::reverse_iterator<init_const_iterator> 2038 init_const_reverse_iterator; 2039 2040 init_reverse_iterator init_rbegin() { 2041 return init_reverse_iterator(init_end()); 2042 } 2043 init_const_reverse_iterator init_rbegin() const { 2044 return init_const_reverse_iterator(init_end()); 2045 } 2046 2047 init_reverse_iterator init_rend() { 2048 return init_reverse_iterator(init_begin()); 2049 } 2050 init_const_reverse_iterator init_rend() const { 2051 return init_const_reverse_iterator(init_begin()); 2052 } 2053 2054 /// getNumArgs - Determine the number of arguments used to 2055 /// initialize the member or base. 2056 unsigned getNumCtorInitializers() const { 2057 return NumCtorInitializers; 2058 } 2059 2060 void setNumCtorInitializers(unsigned numCtorInitializers) { 2061 NumCtorInitializers = numCtorInitializers; 2062 } 2063 2064 void setCtorInitializers(CXXCtorInitializer ** initializers) { 2065 CtorInitializers = initializers; 2066 } 2067 2068 /// isDelegatingConstructor - Whether this constructor is a 2069 /// delegating constructor 2070 bool isDelegatingConstructor() const { 2071 return (getNumCtorInitializers() == 1) && 2072 CtorInitializers[0]->isDelegatingInitializer(); 2073 } 2074 2075 /// getTargetConstructor - When this constructor delegates to 2076 /// another, retrieve the target 2077 CXXConstructorDecl *getTargetConstructor() const; 2078 2079 /// isDefaultConstructor - Whether this constructor is a default 2080 /// constructor (C++ [class.ctor]p5), which can be used to 2081 /// default-initialize a class of this type. 2082 bool isDefaultConstructor() const; 2083 2084 /// isCopyConstructor - Whether this constructor is a copy 2085 /// constructor (C++ [class.copy]p2, which can be used to copy the 2086 /// class. @p TypeQuals will be set to the qualifiers on the 2087 /// argument type. For example, @p TypeQuals would be set to @c 2088 /// QualType::Const for the following copy constructor: 2089 /// 2090 /// @code 2091 /// class X { 2092 /// public: 2093 /// X(const X&); 2094 /// }; 2095 /// @endcode 2096 bool isCopyConstructor(unsigned &TypeQuals) const; 2097 2098 /// isCopyConstructor - Whether this constructor is a copy 2099 /// constructor (C++ [class.copy]p2, which can be used to copy the 2100 /// class. 2101 bool isCopyConstructor() const { 2102 unsigned TypeQuals = 0; 2103 return isCopyConstructor(TypeQuals); 2104 } 2105 2106 /// \brief Determine whether this constructor is a move constructor 2107 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2108 /// 2109 /// \param TypeQuals If this constructor is a move constructor, will be set 2110 /// to the type qualifiers on the referent of the first parameter's type. 2111 bool isMoveConstructor(unsigned &TypeQuals) const; 2112 2113 /// \brief Determine whether this constructor is a move constructor 2114 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2115 bool isMoveConstructor() const { 2116 unsigned TypeQuals = 0; 2117 return isMoveConstructor(TypeQuals); 2118 } 2119 2120 /// \brief Determine whether this is a copy or move constructor. 2121 /// 2122 /// \param TypeQuals Will be set to the type qualifiers on the reference 2123 /// parameter, if in fact this is a copy or move constructor. 2124 bool isCopyOrMoveConstructor(unsigned &TypeQuals) const; 2125 2126 /// \brief Determine whether this a copy or move constructor. 2127 bool isCopyOrMoveConstructor() const { 2128 unsigned Quals; 2129 return isCopyOrMoveConstructor(Quals); 2130 } 2131 2132 /// isConvertingConstructor - Whether this constructor is a 2133 /// converting constructor (C++ [class.conv.ctor]), which can be 2134 /// used for user-defined conversions. 2135 bool isConvertingConstructor(bool AllowExplicit) const; 2136 2137 /// \brief Determine whether this is a member template specialization that 2138 /// would copy the object to itself. Such constructors are never used to copy 2139 /// an object. 2140 bool isSpecializationCopyingObject() const; 2141 2142 /// \brief Get the constructor that this inheriting constructor is based on. 2143 const CXXConstructorDecl *getInheritedConstructor() const; 2144 2145 /// \brief Set the constructor that this inheriting constructor is based on. 2146 void setInheritedConstructor(const CXXConstructorDecl *BaseCtor); 2147 2148 const CXXConstructorDecl *getCanonicalDecl() const { 2149 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2150 } 2151 CXXConstructorDecl *getCanonicalDecl() { 2152 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2153 } 2154 2155 // Implement isa/cast/dyncast/etc. 2156 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2157 static bool classof(const CXXConstructorDecl *D) { return true; } 2158 static bool classofKind(Kind K) { return K == CXXConstructor; } 2159 2160 friend class ASTDeclReader; 2161 friend class ASTDeclWriter; 2162}; 2163 2164/// CXXDestructorDecl - Represents a C++ destructor within a 2165/// class. For example: 2166/// 2167/// @code 2168/// class X { 2169/// public: 2170/// ~X(); // represented by a CXXDestructorDecl. 2171/// }; 2172/// @endcode 2173class CXXDestructorDecl : public CXXMethodDecl { 2174 virtual void anchor(); 2175 /// ImplicitlyDefined - Whether this destructor was implicitly 2176 /// defined by the compiler. When false, the destructor was defined 2177 /// by the user. In C++03, this flag will have the same value as 2178 /// Implicit. In C++0x, however, a destructor that is 2179 /// explicitly defaulted (i.e., defined with " = default") will have 2180 /// @c !Implicit && ImplicitlyDefined. 2181 bool ImplicitlyDefined : 1; 2182 2183 FunctionDecl *OperatorDelete; 2184 2185 CXXDestructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2186 const DeclarationNameInfo &NameInfo, 2187 QualType T, TypeSourceInfo *TInfo, 2188 bool isInline, bool isImplicitlyDeclared) 2189 : CXXMethodDecl(CXXDestructor, RD, StartLoc, NameInfo, T, TInfo, false, 2190 SC_None, isInline, /*isConstexpr=*/false, SourceLocation()), 2191 ImplicitlyDefined(false), OperatorDelete(0) { 2192 setImplicit(isImplicitlyDeclared); 2193 } 2194 2195public: 2196 static CXXDestructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2197 SourceLocation StartLoc, 2198 const DeclarationNameInfo &NameInfo, 2199 QualType T, TypeSourceInfo* TInfo, 2200 bool isInline, 2201 bool isImplicitlyDeclared); 2202 static CXXDestructorDecl *CreateDeserialized(ASTContext & C, unsigned ID); 2203 2204 /// isImplicitlyDefined - Whether this destructor was implicitly 2205 /// defined. If false, then this destructor was defined by the 2206 /// user. This operation can only be invoked if the destructor has 2207 /// already been defined. 2208 bool isImplicitlyDefined() const { 2209 assert(isThisDeclarationADefinition() && 2210 "Can only get the implicit-definition flag once the destructor has " 2211 "been defined"); 2212 return ImplicitlyDefined; 2213 } 2214 2215 /// setImplicitlyDefined - Set whether this destructor was 2216 /// implicitly defined or not. 2217 void setImplicitlyDefined(bool ID) { 2218 assert(isThisDeclarationADefinition() && 2219 "Can only set the implicit-definition flag once the destructor has " 2220 "been defined"); 2221 ImplicitlyDefined = ID; 2222 } 2223 2224 void setOperatorDelete(FunctionDecl *OD) { OperatorDelete = OD; } 2225 const FunctionDecl *getOperatorDelete() const { return OperatorDelete; } 2226 2227 // Implement isa/cast/dyncast/etc. 2228 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2229 static bool classof(const CXXDestructorDecl *D) { return true; } 2230 static bool classofKind(Kind K) { return K == CXXDestructor; } 2231 2232 friend class ASTDeclReader; 2233 friend class ASTDeclWriter; 2234}; 2235 2236/// CXXConversionDecl - Represents a C++ conversion function within a 2237/// class. For example: 2238/// 2239/// @code 2240/// class X { 2241/// public: 2242/// operator bool(); 2243/// }; 2244/// @endcode 2245class CXXConversionDecl : public CXXMethodDecl { 2246 virtual void anchor(); 2247 /// IsExplicitSpecified - Whether this conversion function declaration is 2248 /// marked "explicit", meaning that it can only be applied when the user 2249 /// explicitly wrote a cast. This is a C++0x feature. 2250 bool IsExplicitSpecified : 1; 2251 2252 CXXConversionDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2253 const DeclarationNameInfo &NameInfo, 2254 QualType T, TypeSourceInfo *TInfo, 2255 bool isInline, bool isExplicitSpecified, 2256 bool isConstexpr, SourceLocation EndLocation) 2257 : CXXMethodDecl(CXXConversion, RD, StartLoc, NameInfo, T, TInfo, false, 2258 SC_None, isInline, isConstexpr, EndLocation), 2259 IsExplicitSpecified(isExplicitSpecified) { } 2260 2261public: 2262 static CXXConversionDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2263 SourceLocation StartLoc, 2264 const DeclarationNameInfo &NameInfo, 2265 QualType T, TypeSourceInfo *TInfo, 2266 bool isInline, bool isExplicit, 2267 bool isConstexpr, 2268 SourceLocation EndLocation); 2269 static CXXConversionDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2270 2271 /// IsExplicitSpecified - Whether this conversion function declaration is 2272 /// marked "explicit", meaning that it can only be applied when the user 2273 /// explicitly wrote a cast. This is a C++0x feature. 2274 bool isExplicitSpecified() const { return IsExplicitSpecified; } 2275 2276 /// isExplicit - Whether this is an explicit conversion operator 2277 /// (C++0x only). Explicit conversion operators are only considered 2278 /// when the user has explicitly written a cast. 2279 bool isExplicit() const { 2280 return cast<CXXConversionDecl>(getFirstDeclaration()) 2281 ->isExplicitSpecified(); 2282 } 2283 2284 /// getConversionType - Returns the type that this conversion 2285 /// function is converting to. 2286 QualType getConversionType() const { 2287 return getType()->getAs<FunctionType>()->getResultType(); 2288 } 2289 2290 /// \brief Determine whether this conversion function is a conversion from 2291 /// a lambda closure type to a block pointer. 2292 bool isLambdaToBlockPointerConversion() const; 2293 2294 // Implement isa/cast/dyncast/etc. 2295 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2296 static bool classof(const CXXConversionDecl *D) { return true; } 2297 static bool classofKind(Kind K) { return K == CXXConversion; } 2298 2299 friend class ASTDeclReader; 2300 friend class ASTDeclWriter; 2301}; 2302 2303/// LinkageSpecDecl - This represents a linkage specification. For example: 2304/// extern "C" void foo(); 2305/// 2306class LinkageSpecDecl : public Decl, public DeclContext { 2307 virtual void anchor(); 2308public: 2309 /// LanguageIDs - Used to represent the language in a linkage 2310 /// specification. The values are part of the serialization abi for 2311 /// ASTs and cannot be changed without altering that abi. To help 2312 /// ensure a stable abi for this, we choose the DW_LANG_ encodings 2313 /// from the dwarf standard. 2314 enum LanguageIDs { 2315 lang_c = /* DW_LANG_C */ 0x0002, 2316 lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004 2317 }; 2318private: 2319 /// Language - The language for this linkage specification. 2320 LanguageIDs Language; 2321 /// ExternLoc - The source location for the extern keyword. 2322 SourceLocation ExternLoc; 2323 /// RBraceLoc - The source location for the right brace (if valid). 2324 SourceLocation RBraceLoc; 2325 2326 LinkageSpecDecl(DeclContext *DC, SourceLocation ExternLoc, 2327 SourceLocation LangLoc, LanguageIDs lang, 2328 SourceLocation RBLoc) 2329 : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec), 2330 Language(lang), ExternLoc(ExternLoc), RBraceLoc(RBLoc) { } 2331 2332public: 2333 static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC, 2334 SourceLocation ExternLoc, 2335 SourceLocation LangLoc, LanguageIDs Lang, 2336 SourceLocation RBraceLoc = SourceLocation()); 2337 static LinkageSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2338 2339 /// \brief Return the language specified by this linkage specification. 2340 LanguageIDs getLanguage() const { return Language; } 2341 /// \brief Set the language specified by this linkage specification. 2342 void setLanguage(LanguageIDs L) { Language = L; } 2343 2344 /// \brief Determines whether this linkage specification had braces in 2345 /// its syntactic form. 2346 bool hasBraces() const { return RBraceLoc.isValid(); } 2347 2348 SourceLocation getExternLoc() const { return ExternLoc; } 2349 SourceLocation getRBraceLoc() const { return RBraceLoc; } 2350 void setExternLoc(SourceLocation L) { ExternLoc = L; } 2351 void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } 2352 2353 SourceLocation getLocEnd() const LLVM_READONLY { 2354 if (hasBraces()) 2355 return getRBraceLoc(); 2356 // No braces: get the end location of the (only) declaration in context 2357 // (if present). 2358 return decls_empty() ? getLocation() : decls_begin()->getLocEnd(); 2359 } 2360 2361 SourceRange getSourceRange() const LLVM_READONLY { 2362 return SourceRange(ExternLoc, getLocEnd()); 2363 } 2364 2365 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2366 static bool classof(const LinkageSpecDecl *D) { return true; } 2367 static bool classofKind(Kind K) { return K == LinkageSpec; } 2368 static DeclContext *castToDeclContext(const LinkageSpecDecl *D) { 2369 return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D)); 2370 } 2371 static LinkageSpecDecl *castFromDeclContext(const DeclContext *DC) { 2372 return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC)); 2373 } 2374}; 2375 2376/// UsingDirectiveDecl - Represents C++ using-directive. For example: 2377/// 2378/// using namespace std; 2379/// 2380// NB: UsingDirectiveDecl should be Decl not NamedDecl, but we provide 2381// artificial names for all using-directives in order to store 2382// them in DeclContext effectively. 2383class UsingDirectiveDecl : public NamedDecl { 2384 virtual void anchor(); 2385 /// \brief The location of the "using" keyword. 2386 SourceLocation UsingLoc; 2387 2388 /// SourceLocation - Location of 'namespace' token. 2389 SourceLocation NamespaceLoc; 2390 2391 /// \brief The nested-name-specifier that precedes the namespace. 2392 NestedNameSpecifierLoc QualifierLoc; 2393 2394 /// NominatedNamespace - Namespace nominated by using-directive. 2395 NamedDecl *NominatedNamespace; 2396 2397 /// Enclosing context containing both using-directive and nominated 2398 /// namespace. 2399 DeclContext *CommonAncestor; 2400 2401 /// getUsingDirectiveName - Returns special DeclarationName used by 2402 /// using-directives. This is only used by DeclContext for storing 2403 /// UsingDirectiveDecls in its lookup structure. 2404 static DeclarationName getName() { 2405 return DeclarationName::getUsingDirectiveName(); 2406 } 2407 2408 UsingDirectiveDecl(DeclContext *DC, SourceLocation UsingLoc, 2409 SourceLocation NamespcLoc, 2410 NestedNameSpecifierLoc QualifierLoc, 2411 SourceLocation IdentLoc, 2412 NamedDecl *Nominated, 2413 DeclContext *CommonAncestor) 2414 : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc), 2415 NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc), 2416 NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) { } 2417 2418public: 2419 /// \brief Retrieve the nested-name-specifier that qualifies the 2420 /// name of the namespace, with source-location information. 2421 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2422 2423 /// \brief Retrieve the nested-name-specifier that qualifies the 2424 /// name of the namespace. 2425 NestedNameSpecifier *getQualifier() const { 2426 return QualifierLoc.getNestedNameSpecifier(); 2427 } 2428 2429 NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; } 2430 const NamedDecl *getNominatedNamespaceAsWritten() const { 2431 return NominatedNamespace; 2432 } 2433 2434 /// getNominatedNamespace - Returns namespace nominated by using-directive. 2435 NamespaceDecl *getNominatedNamespace(); 2436 2437 const NamespaceDecl *getNominatedNamespace() const { 2438 return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace(); 2439 } 2440 2441 /// \brief Returns the common ancestor context of this using-directive and 2442 /// its nominated namespace. 2443 DeclContext *getCommonAncestor() { return CommonAncestor; } 2444 const DeclContext *getCommonAncestor() const { return CommonAncestor; } 2445 2446 /// \brief Return the location of the "using" keyword. 2447 SourceLocation getUsingLoc() const { return UsingLoc; } 2448 2449 // FIXME: Could omit 'Key' in name. 2450 /// getNamespaceKeyLocation - Returns location of namespace keyword. 2451 SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; } 2452 2453 /// getIdentLocation - Returns location of identifier. 2454 SourceLocation getIdentLocation() const { return getLocation(); } 2455 2456 static UsingDirectiveDecl *Create(ASTContext &C, DeclContext *DC, 2457 SourceLocation UsingLoc, 2458 SourceLocation NamespaceLoc, 2459 NestedNameSpecifierLoc QualifierLoc, 2460 SourceLocation IdentLoc, 2461 NamedDecl *Nominated, 2462 DeclContext *CommonAncestor); 2463 static UsingDirectiveDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2464 2465 SourceRange getSourceRange() const LLVM_READONLY { 2466 return SourceRange(UsingLoc, getLocation()); 2467 } 2468 2469 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2470 static bool classof(const UsingDirectiveDecl *D) { return true; } 2471 static bool classofKind(Kind K) { return K == UsingDirective; } 2472 2473 // Friend for getUsingDirectiveName. 2474 friend class DeclContext; 2475 2476 friend class ASTDeclReader; 2477}; 2478 2479/// NamespaceAliasDecl - Represents a C++ namespace alias. For example: 2480/// 2481/// @code 2482/// namespace Foo = Bar; 2483/// @endcode 2484class NamespaceAliasDecl : public NamedDecl { 2485 virtual void anchor(); 2486 2487 /// \brief The location of the "namespace" keyword. 2488 SourceLocation NamespaceLoc; 2489 2490 /// IdentLoc - Location of namespace identifier. Accessed by TargetNameLoc. 2491 SourceLocation IdentLoc; 2492 2493 /// \brief The nested-name-specifier that precedes the namespace. 2494 NestedNameSpecifierLoc QualifierLoc; 2495 2496 /// Namespace - The Decl that this alias points to. Can either be a 2497 /// NamespaceDecl or a NamespaceAliasDecl. 2498 NamedDecl *Namespace; 2499 2500 NamespaceAliasDecl(DeclContext *DC, SourceLocation NamespaceLoc, 2501 SourceLocation AliasLoc, IdentifierInfo *Alias, 2502 NestedNameSpecifierLoc QualifierLoc, 2503 SourceLocation IdentLoc, NamedDecl *Namespace) 2504 : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), 2505 NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc), 2506 QualifierLoc(QualifierLoc), Namespace(Namespace) { } 2507 2508 friend class ASTDeclReader; 2509 2510public: 2511 /// \brief Retrieve the nested-name-specifier that qualifies the 2512 /// name of the namespace, with source-location information. 2513 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2514 2515 /// \brief Retrieve the nested-name-specifier that qualifies the 2516 /// name of the namespace. 2517 NestedNameSpecifier *getQualifier() const { 2518 return QualifierLoc.getNestedNameSpecifier(); 2519 } 2520 2521 /// \brief Retrieve the namespace declaration aliased by this directive. 2522 NamespaceDecl *getNamespace() { 2523 if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace)) 2524 return AD->getNamespace(); 2525 2526 return cast<NamespaceDecl>(Namespace); 2527 } 2528 2529 const NamespaceDecl *getNamespace() const { 2530 return const_cast<NamespaceAliasDecl*>(this)->getNamespace(); 2531 } 2532 2533 /// Returns the location of the alias name, i.e. 'foo' in 2534 /// "namespace foo = ns::bar;". 2535 SourceLocation getAliasLoc() const { return getLocation(); } 2536 2537 /// Returns the location of the 'namespace' keyword. 2538 SourceLocation getNamespaceLoc() const { return NamespaceLoc; } 2539 2540 /// Returns the location of the identifier in the named namespace. 2541 SourceLocation getTargetNameLoc() const { return IdentLoc; } 2542 2543 /// \brief Retrieve the namespace that this alias refers to, which 2544 /// may either be a NamespaceDecl or a NamespaceAliasDecl. 2545 NamedDecl *getAliasedNamespace() const { return Namespace; } 2546 2547 static NamespaceAliasDecl *Create(ASTContext &C, DeclContext *DC, 2548 SourceLocation NamespaceLoc, 2549 SourceLocation AliasLoc, 2550 IdentifierInfo *Alias, 2551 NestedNameSpecifierLoc QualifierLoc, 2552 SourceLocation IdentLoc, 2553 NamedDecl *Namespace); 2554 2555 static NamespaceAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2556 2557 virtual SourceRange getSourceRange() const LLVM_READONLY { 2558 return SourceRange(NamespaceLoc, IdentLoc); 2559 } 2560 2561 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2562 static bool classof(const NamespaceAliasDecl *D) { return true; } 2563 static bool classofKind(Kind K) { return K == NamespaceAlias; } 2564}; 2565 2566/// UsingShadowDecl - Represents a shadow declaration introduced into 2567/// a scope by a (resolved) using declaration. For example, 2568/// 2569/// namespace A { 2570/// void foo(); 2571/// } 2572/// namespace B { 2573/// using A::foo(); // <- a UsingDecl 2574/// // Also creates a UsingShadowDecl for A::foo in B 2575/// } 2576/// 2577class UsingShadowDecl : public NamedDecl { 2578 virtual void anchor(); 2579 2580 /// The referenced declaration. 2581 NamedDecl *Underlying; 2582 2583 /// \brief The using declaration which introduced this decl or the next using 2584 /// shadow declaration contained in the aforementioned using declaration. 2585 NamedDecl *UsingOrNextShadow; 2586 friend class UsingDecl; 2587 2588 UsingShadowDecl(DeclContext *DC, SourceLocation Loc, UsingDecl *Using, 2589 NamedDecl *Target) 2590 : NamedDecl(UsingShadow, DC, Loc, DeclarationName()), 2591 Underlying(Target), 2592 UsingOrNextShadow(reinterpret_cast<NamedDecl *>(Using)) { 2593 if (Target) { 2594 setDeclName(Target->getDeclName()); 2595 IdentifierNamespace = Target->getIdentifierNamespace(); 2596 } 2597 setImplicit(); 2598 } 2599 2600public: 2601 static UsingShadowDecl *Create(ASTContext &C, DeclContext *DC, 2602 SourceLocation Loc, UsingDecl *Using, 2603 NamedDecl *Target) { 2604 return new (C) UsingShadowDecl(DC, Loc, Using, Target); 2605 } 2606 2607 static UsingShadowDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2608 2609 /// \brief Gets the underlying declaration which has been brought into the 2610 /// local scope. 2611 NamedDecl *getTargetDecl() const { return Underlying; } 2612 2613 /// \brief Sets the underlying declaration which has been brought into the 2614 /// local scope. 2615 void setTargetDecl(NamedDecl* ND) { 2616 assert(ND && "Target decl is null!"); 2617 Underlying = ND; 2618 IdentifierNamespace = ND->getIdentifierNamespace(); 2619 } 2620 2621 /// \brief Gets the using declaration to which this declaration is tied. 2622 UsingDecl *getUsingDecl() const; 2623 2624 /// \brief The next using shadow declaration contained in the shadow decl 2625 /// chain of the using declaration which introduced this decl. 2626 UsingShadowDecl *getNextUsingShadowDecl() const { 2627 return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow); 2628 } 2629 2630 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2631 static bool classof(const UsingShadowDecl *D) { return true; } 2632 static bool classofKind(Kind K) { return K == Decl::UsingShadow; } 2633 2634 friend class ASTDeclReader; 2635 friend class ASTDeclWriter; 2636}; 2637 2638/// UsingDecl - Represents a C++ using-declaration. For example: 2639/// using someNameSpace::someIdentifier; 2640class UsingDecl : public NamedDecl { 2641 virtual void anchor(); 2642 2643 /// \brief The source location of the "using" location itself. 2644 SourceLocation UsingLocation; 2645 2646 /// \brief The nested-name-specifier that precedes the name. 2647 NestedNameSpecifierLoc QualifierLoc; 2648 2649 /// DNLoc - Provides source/type location info for the 2650 /// declaration name embedded in the ValueDecl base class. 2651 DeclarationNameLoc DNLoc; 2652 2653 /// \brief The first shadow declaration of the shadow decl chain associated 2654 /// with this using declaration. The bool member of the pair store whether 2655 /// this decl has the 'typename' keyword. 2656 llvm::PointerIntPair<UsingShadowDecl *, 1, bool> FirstUsingShadow; 2657 2658 UsingDecl(DeclContext *DC, SourceLocation UL, 2659 NestedNameSpecifierLoc QualifierLoc, 2660 const DeclarationNameInfo &NameInfo, bool IsTypeNameArg) 2661 : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()), 2662 UsingLocation(UL), QualifierLoc(QualifierLoc), 2663 DNLoc(NameInfo.getInfo()), FirstUsingShadow(0, IsTypeNameArg) { 2664 } 2665 2666public: 2667 /// \brief Returns the source location of the "using" keyword. 2668 SourceLocation getUsingLocation() const { return UsingLocation; } 2669 2670 /// \brief Set the source location of the 'using' keyword. 2671 void setUsingLocation(SourceLocation L) { UsingLocation = L; } 2672 2673 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2674 /// with source-location information. 2675 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2676 2677 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2678 NestedNameSpecifier *getQualifier() const { 2679 return QualifierLoc.getNestedNameSpecifier(); 2680 } 2681 2682 DeclarationNameInfo getNameInfo() const { 2683 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2684 } 2685 2686 /// \brief Return true if the using declaration has 'typename'. 2687 bool isTypeName() const { return FirstUsingShadow.getInt(); } 2688 2689 /// \brief Sets whether the using declaration has 'typename'. 2690 void setTypeName(bool TN) { FirstUsingShadow.setInt(TN); } 2691 2692 /// \brief Iterates through the using shadow declarations assosiated with 2693 /// this using declaration. 2694 class shadow_iterator { 2695 /// \brief The current using shadow declaration. 2696 UsingShadowDecl *Current; 2697 2698 public: 2699 typedef UsingShadowDecl* value_type; 2700 typedef UsingShadowDecl* reference; 2701 typedef UsingShadowDecl* pointer; 2702 typedef std::forward_iterator_tag iterator_category; 2703 typedef std::ptrdiff_t difference_type; 2704 2705 shadow_iterator() : Current(0) { } 2706 explicit shadow_iterator(UsingShadowDecl *C) : Current(C) { } 2707 2708 reference operator*() const { return Current; } 2709 pointer operator->() const { return Current; } 2710 2711 shadow_iterator& operator++() { 2712 Current = Current->getNextUsingShadowDecl(); 2713 return *this; 2714 } 2715 2716 shadow_iterator operator++(int) { 2717 shadow_iterator tmp(*this); 2718 ++(*this); 2719 return tmp; 2720 } 2721 2722 friend bool operator==(shadow_iterator x, shadow_iterator y) { 2723 return x.Current == y.Current; 2724 } 2725 friend bool operator!=(shadow_iterator x, shadow_iterator y) { 2726 return x.Current != y.Current; 2727 } 2728 }; 2729 2730 shadow_iterator shadow_begin() const { 2731 return shadow_iterator(FirstUsingShadow.getPointer()); 2732 } 2733 shadow_iterator shadow_end() const { return shadow_iterator(); } 2734 2735 /// \brief Return the number of shadowed declarations associated with this 2736 /// using declaration. 2737 unsigned shadow_size() const { 2738 return std::distance(shadow_begin(), shadow_end()); 2739 } 2740 2741 void addShadowDecl(UsingShadowDecl *S); 2742 void removeShadowDecl(UsingShadowDecl *S); 2743 2744 static UsingDecl *Create(ASTContext &C, DeclContext *DC, 2745 SourceLocation UsingL, 2746 NestedNameSpecifierLoc QualifierLoc, 2747 const DeclarationNameInfo &NameInfo, 2748 bool IsTypeNameArg); 2749 2750 static UsingDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2751 2752 SourceRange getSourceRange() const LLVM_READONLY { 2753 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2754 } 2755 2756 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2757 static bool classof(const UsingDecl *D) { return true; } 2758 static bool classofKind(Kind K) { return K == Using; } 2759 2760 friend class ASTDeclReader; 2761 friend class ASTDeclWriter; 2762}; 2763 2764/// UnresolvedUsingValueDecl - Represents a dependent using 2765/// declaration which was not marked with 'typename'. Unlike 2766/// non-dependent using declarations, these *only* bring through 2767/// non-types; otherwise they would break two-phase lookup. 2768/// 2769/// template <class T> class A : public Base<T> { 2770/// using Base<T>::foo; 2771/// }; 2772class UnresolvedUsingValueDecl : public ValueDecl { 2773 virtual void anchor(); 2774 2775 /// \brief The source location of the 'using' keyword 2776 SourceLocation UsingLocation; 2777 2778 /// \brief The nested-name-specifier that precedes the name. 2779 NestedNameSpecifierLoc QualifierLoc; 2780 2781 /// DNLoc - Provides source/type location info for the 2782 /// declaration name embedded in the ValueDecl base class. 2783 DeclarationNameLoc DNLoc; 2784 2785 UnresolvedUsingValueDecl(DeclContext *DC, QualType Ty, 2786 SourceLocation UsingLoc, 2787 NestedNameSpecifierLoc QualifierLoc, 2788 const DeclarationNameInfo &NameInfo) 2789 : ValueDecl(UnresolvedUsingValue, DC, 2790 NameInfo.getLoc(), NameInfo.getName(), Ty), 2791 UsingLocation(UsingLoc), QualifierLoc(QualifierLoc), 2792 DNLoc(NameInfo.getInfo()) 2793 { } 2794 2795public: 2796 /// \brief Returns the source location of the 'using' keyword. 2797 SourceLocation getUsingLoc() const { return UsingLocation; } 2798 2799 /// \brief Set the source location of the 'using' keyword. 2800 void setUsingLoc(SourceLocation L) { UsingLocation = L; } 2801 2802 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2803 /// with source-location information. 2804 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2805 2806 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2807 NestedNameSpecifier *getQualifier() const { 2808 return QualifierLoc.getNestedNameSpecifier(); 2809 } 2810 2811 DeclarationNameInfo getNameInfo() const { 2812 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2813 } 2814 2815 static UnresolvedUsingValueDecl * 2816 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2817 NestedNameSpecifierLoc QualifierLoc, 2818 const DeclarationNameInfo &NameInfo); 2819 2820 static UnresolvedUsingValueDecl * 2821 CreateDeserialized(ASTContext &C, unsigned ID); 2822 2823 SourceRange getSourceRange() const LLVM_READONLY { 2824 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2825 } 2826 2827 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2828 static bool classof(const UnresolvedUsingValueDecl *D) { return true; } 2829 static bool classofKind(Kind K) { return K == UnresolvedUsingValue; } 2830 2831 friend class ASTDeclReader; 2832 friend class ASTDeclWriter; 2833}; 2834 2835/// UnresolvedUsingTypenameDecl - Represents a dependent using 2836/// declaration which was marked with 'typename'. 2837/// 2838/// template <class T> class A : public Base<T> { 2839/// using typename Base<T>::foo; 2840/// }; 2841/// 2842/// The type associated with a unresolved using typename decl is 2843/// currently always a typename type. 2844class UnresolvedUsingTypenameDecl : public TypeDecl { 2845 virtual void anchor(); 2846 2847 /// \brief The source location of the 'using' keyword 2848 SourceLocation UsingLocation; 2849 2850 /// \brief The source location of the 'typename' keyword 2851 SourceLocation TypenameLocation; 2852 2853 /// \brief The nested-name-specifier that precedes the name. 2854 NestedNameSpecifierLoc QualifierLoc; 2855 2856 UnresolvedUsingTypenameDecl(DeclContext *DC, SourceLocation UsingLoc, 2857 SourceLocation TypenameLoc, 2858 NestedNameSpecifierLoc QualifierLoc, 2859 SourceLocation TargetNameLoc, 2860 IdentifierInfo *TargetName) 2861 : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName, 2862 UsingLoc), 2863 TypenameLocation(TypenameLoc), QualifierLoc(QualifierLoc) { } 2864 2865 friend class ASTDeclReader; 2866 2867public: 2868 /// \brief Returns the source location of the 'using' keyword. 2869 SourceLocation getUsingLoc() const { return getLocStart(); } 2870 2871 /// \brief Returns the source location of the 'typename' keyword. 2872 SourceLocation getTypenameLoc() const { return TypenameLocation; } 2873 2874 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2875 /// with source-location information. 2876 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2877 2878 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2879 NestedNameSpecifier *getQualifier() const { 2880 return QualifierLoc.getNestedNameSpecifier(); 2881 } 2882 2883 static UnresolvedUsingTypenameDecl * 2884 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2885 SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc, 2886 SourceLocation TargetNameLoc, DeclarationName TargetName); 2887 2888 static UnresolvedUsingTypenameDecl * 2889 CreateDeserialized(ASTContext &C, unsigned ID); 2890 2891 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2892 static bool classof(const UnresolvedUsingTypenameDecl *D) { return true; } 2893 static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; } 2894}; 2895 2896/// StaticAssertDecl - Represents a C++0x static_assert declaration. 2897class StaticAssertDecl : public Decl { 2898 virtual void anchor(); 2899 Expr *AssertExpr; 2900 StringLiteral *Message; 2901 SourceLocation RParenLoc; 2902 2903 StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc, 2904 Expr *assertexpr, StringLiteral *message, 2905 SourceLocation RParenLoc) 2906 : Decl(StaticAssert, DC, StaticAssertLoc), AssertExpr(assertexpr), 2907 Message(message), RParenLoc(RParenLoc) { } 2908 2909public: 2910 static StaticAssertDecl *Create(ASTContext &C, DeclContext *DC, 2911 SourceLocation StaticAssertLoc, 2912 Expr *AssertExpr, StringLiteral *Message, 2913 SourceLocation RParenLoc); 2914 static StaticAssertDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2915 2916 Expr *getAssertExpr() { return AssertExpr; } 2917 const Expr *getAssertExpr() const { return AssertExpr; } 2918 2919 StringLiteral *getMessage() { return Message; } 2920 const StringLiteral *getMessage() const { return Message; } 2921 2922 SourceLocation getRParenLoc() const { return RParenLoc; } 2923 void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2924 2925 SourceRange getSourceRange() const LLVM_READONLY { 2926 return SourceRange(getLocation(), getRParenLoc()); 2927 } 2928 2929 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2930 static bool classof(StaticAssertDecl *D) { return true; } 2931 static bool classofKind(Kind K) { return K == StaticAssert; } 2932 2933 friend class ASTDeclReader; 2934}; 2935 2936/// Insertion operator for diagnostics. This allows sending AccessSpecifier's 2937/// into a diagnostic with <<. 2938const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 2939 AccessSpecifier AS); 2940 2941const PartialDiagnostic &operator<<(const PartialDiagnostic &DB, 2942 AccessSpecifier AS); 2943 2944} // end namespace clang 2945 2946#endif 2947