DeclCXX.h revision 3f5f558a4ca08fe952cbbdf69b87487163c9a719
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 void markedConstructorConstexpr(CXXConstructorDecl *CD); 654 friend void FunctionDecl::setConstexpr(bool); 655 656 friend class ASTNodeImporter; 657 658protected: 659 CXXRecordDecl(Kind K, TagKind TK, DeclContext *DC, 660 SourceLocation StartLoc, SourceLocation IdLoc, 661 IdentifierInfo *Id, CXXRecordDecl *PrevDecl); 662 663public: 664 /// base_class_iterator - Iterator that traverses the base classes 665 /// of a class. 666 typedef CXXBaseSpecifier* base_class_iterator; 667 668 /// base_class_const_iterator - Iterator that traverses the base 669 /// classes of a class. 670 typedef const CXXBaseSpecifier* base_class_const_iterator; 671 672 /// reverse_base_class_iterator = Iterator that traverses the base classes 673 /// of a class in reverse order. 674 typedef std::reverse_iterator<base_class_iterator> 675 reverse_base_class_iterator; 676 677 /// reverse_base_class_iterator = Iterator that traverses the base classes 678 /// of a class in reverse order. 679 typedef std::reverse_iterator<base_class_const_iterator> 680 reverse_base_class_const_iterator; 681 682 virtual CXXRecordDecl *getCanonicalDecl() { 683 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 684 } 685 virtual const CXXRecordDecl *getCanonicalDecl() const { 686 return cast<CXXRecordDecl>(RecordDecl::getCanonicalDecl()); 687 } 688 689 const CXXRecordDecl *getPreviousDecl() const { 690 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 691 } 692 CXXRecordDecl *getPreviousDecl() { 693 return cast_or_null<CXXRecordDecl>(RecordDecl::getPreviousDecl()); 694 } 695 696 const CXXRecordDecl *getMostRecentDecl() const { 697 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 698 } 699 CXXRecordDecl *getMostRecentDecl() { 700 return cast_or_null<CXXRecordDecl>(RecordDecl::getMostRecentDecl()); 701 } 702 703 CXXRecordDecl *getDefinition() const { 704 if (!DefinitionData) return 0; 705 return data().Definition; 706 } 707 708 bool hasDefinition() const { return DefinitionData != 0; } 709 710 static CXXRecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC, 711 SourceLocation StartLoc, SourceLocation IdLoc, 712 IdentifierInfo *Id, CXXRecordDecl* PrevDecl=0, 713 bool DelayTypeCreation = false); 714 static CXXRecordDecl *CreateLambda(const ASTContext &C, DeclContext *DC, 715 SourceLocation Loc, bool DependentLambda); 716 static CXXRecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID); 717 718 bool isDynamicClass() const { 719 return data().Polymorphic || data().NumVBases != 0; 720 } 721 722 /// setBases - Sets the base classes of this struct or class. 723 void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases); 724 725 /// getNumBases - Retrieves the number of base classes of this 726 /// class. 727 unsigned getNumBases() const { return data().NumBases; } 728 729 base_class_iterator bases_begin() { return data().getBases(); } 730 base_class_const_iterator bases_begin() const { return data().getBases(); } 731 base_class_iterator bases_end() { return bases_begin() + data().NumBases; } 732 base_class_const_iterator bases_end() const { 733 return bases_begin() + data().NumBases; 734 } 735 reverse_base_class_iterator bases_rbegin() { 736 return reverse_base_class_iterator(bases_end()); 737 } 738 reverse_base_class_const_iterator bases_rbegin() const { 739 return reverse_base_class_const_iterator(bases_end()); 740 } 741 reverse_base_class_iterator bases_rend() { 742 return reverse_base_class_iterator(bases_begin()); 743 } 744 reverse_base_class_const_iterator bases_rend() const { 745 return reverse_base_class_const_iterator(bases_begin()); 746 } 747 748 /// getNumVBases - Retrieves the number of virtual base classes of this 749 /// class. 750 unsigned getNumVBases() const { return data().NumVBases; } 751 752 base_class_iterator vbases_begin() { return data().getVBases(); } 753 base_class_const_iterator vbases_begin() const { return data().getVBases(); } 754 base_class_iterator vbases_end() { return vbases_begin() + data().NumVBases; } 755 base_class_const_iterator vbases_end() const { 756 return vbases_begin() + data().NumVBases; 757 } 758 reverse_base_class_iterator vbases_rbegin() { 759 return reverse_base_class_iterator(vbases_end()); 760 } 761 reverse_base_class_const_iterator vbases_rbegin() const { 762 return reverse_base_class_const_iterator(vbases_end()); 763 } 764 reverse_base_class_iterator vbases_rend() { 765 return reverse_base_class_iterator(vbases_begin()); 766 } 767 reverse_base_class_const_iterator vbases_rend() const { 768 return reverse_base_class_const_iterator(vbases_begin()); 769 } 770 771 /// \brief Determine whether this class has any dependent base classes. 772 bool hasAnyDependentBases() const; 773 774 /// Iterator access to method members. The method iterator visits 775 /// all method members of the class, including non-instance methods, 776 /// special methods, etc. 777 typedef specific_decl_iterator<CXXMethodDecl> method_iterator; 778 779 /// method_begin - Method begin iterator. Iterates in the order the methods 780 /// were declared. 781 method_iterator method_begin() const { 782 return method_iterator(decls_begin()); 783 } 784 /// method_end - Method end iterator. 785 method_iterator method_end() const { 786 return method_iterator(decls_end()); 787 } 788 789 /// Iterator access to constructor members. 790 typedef specific_decl_iterator<CXXConstructorDecl> ctor_iterator; 791 792 ctor_iterator ctor_begin() const { 793 return ctor_iterator(decls_begin()); 794 } 795 ctor_iterator ctor_end() const { 796 return ctor_iterator(decls_end()); 797 } 798 799 /// An iterator over friend declarations. All of these are defined 800 /// in DeclFriend.h. 801 class friend_iterator; 802 friend_iterator friend_begin() const; 803 friend_iterator friend_end() const; 804 void pushFriendDecl(FriendDecl *FD); 805 806 /// Determines whether this record has any friends. 807 bool hasFriends() const { 808 return data().FirstFriend != 0; 809 } 810 811 /// \brief Determine if we need to declare a default constructor for 812 /// this class. 813 /// 814 /// This value is used for lazy creation of default constructors. 815 bool needsImplicitDefaultConstructor() const { 816 return !data().UserDeclaredConstructor && 817 !data().DeclaredDefaultConstructor; 818 } 819 820 /// hasDeclaredDefaultConstructor - Whether this class's default constructor 821 /// has been declared (either explicitly or implicitly). 822 bool hasDeclaredDefaultConstructor() const { 823 return data().DeclaredDefaultConstructor; 824 } 825 826 /// hasConstCopyConstructor - Determines whether this class has a 827 /// copy constructor that accepts a const-qualified argument. 828 bool hasConstCopyConstructor() const; 829 830 /// getCopyConstructor - Returns the copy constructor for this class 831 CXXConstructorDecl *getCopyConstructor(unsigned TypeQuals) const; 832 833 /// getMoveConstructor - Returns the move constructor for this class 834 CXXConstructorDecl *getMoveConstructor() const; 835 836 /// \brief Retrieve the copy-assignment operator for this class, if available. 837 /// 838 /// This routine attempts to find the copy-assignment operator for this 839 /// class, using a simplistic form of overload resolution. 840 /// 841 /// \param ArgIsConst Whether the argument to the copy-assignment operator 842 /// is const-qualified. 843 /// 844 /// \returns The copy-assignment operator that can be invoked, or NULL if 845 /// a unique copy-assignment operator could not be found. 846 CXXMethodDecl *getCopyAssignmentOperator(bool ArgIsConst) const; 847 848 /// getMoveAssignmentOperator - Returns the move assignment operator for this 849 /// class 850 CXXMethodDecl *getMoveAssignmentOperator() const; 851 852 /// hasUserDeclaredConstructor - Whether this class has any 853 /// user-declared constructors. When true, a default constructor 854 /// will not be implicitly declared. 855 bool hasUserDeclaredConstructor() const { 856 return data().UserDeclaredConstructor; 857 } 858 859 /// hasUserProvidedDefaultconstructor - Whether this class has a 860 /// user-provided default constructor per C++0x. 861 bool hasUserProvidedDefaultConstructor() const { 862 return data().UserProvidedDefaultConstructor; 863 } 864 865 /// hasUserDeclaredCopyConstructor - Whether this class has a 866 /// user-declared copy constructor. When false, a copy constructor 867 /// will be implicitly declared. 868 bool hasUserDeclaredCopyConstructor() const { 869 return data().UserDeclaredCopyConstructor; 870 } 871 872 /// \brief Determine whether this class has had its copy constructor 873 /// declared, either via the user or via an implicit declaration. 874 /// 875 /// This value is used for lazy creation of copy constructors. 876 bool hasDeclaredCopyConstructor() const { 877 return data().DeclaredCopyConstructor; 878 } 879 880 /// hasUserDeclaredMoveOperation - Whether this class has a user- 881 /// declared move constructor or assignment operator. When false, a 882 /// move constructor and assignment operator may be implicitly declared. 883 bool hasUserDeclaredMoveOperation() const { 884 return data().UserDeclaredMoveConstructor || 885 data().UserDeclaredMoveAssignment; 886 } 887 888 /// \brief Determine whether this class has had a move constructor 889 /// declared by the user. 890 bool hasUserDeclaredMoveConstructor() const { 891 return data().UserDeclaredMoveConstructor; 892 } 893 894 /// \brief Determine whether this class has had a move constructor 895 /// declared. 896 bool hasDeclaredMoveConstructor() const { 897 return data().DeclaredMoveConstructor; 898 } 899 900 /// \brief Determine whether implicit move constructor generation for this 901 /// class has failed before. 902 bool hasFailedImplicitMoveConstructor() const { 903 return data().FailedImplicitMoveConstructor; 904 } 905 906 /// \brief Set whether implicit move constructor generation for this class 907 /// has failed before. 908 void setFailedImplicitMoveConstructor(bool Failed = true) { 909 data().FailedImplicitMoveConstructor = Failed; 910 } 911 912 /// \brief Determine whether this class should get an implicit move 913 /// constructor or if any existing special member function inhibits this. 914 /// 915 /// Covers all bullets of C++0x [class.copy]p9 except the last, that the 916 /// constructor wouldn't be deleted, which is only looked up from a cached 917 /// result. 918 bool needsImplicitMoveConstructor() const { 919 return !hasFailedImplicitMoveConstructor() && 920 !hasDeclaredMoveConstructor() && 921 !hasUserDeclaredCopyConstructor() && 922 !hasUserDeclaredCopyAssignment() && 923 !hasUserDeclaredMoveAssignment() && 924 !hasUserDeclaredDestructor(); 925 } 926 927 /// hasUserDeclaredCopyAssignment - Whether this class has a 928 /// user-declared copy assignment operator. When false, a copy 929 /// assigment operator will be implicitly declared. 930 bool hasUserDeclaredCopyAssignment() const { 931 return data().UserDeclaredCopyAssignment; 932 } 933 934 /// \brief Determine whether this class has had its copy assignment operator 935 /// declared, either via the user or via an implicit declaration. 936 /// 937 /// This value is used for lazy creation of copy assignment operators. 938 bool hasDeclaredCopyAssignment() const { 939 return data().DeclaredCopyAssignment; 940 } 941 942 /// \brief Determine whether this class has had a move assignment 943 /// declared by the user. 944 bool hasUserDeclaredMoveAssignment() const { 945 return data().UserDeclaredMoveAssignment; 946 } 947 948 /// hasDeclaredMoveAssignment - Whether this class has a 949 /// declared move assignment operator. 950 bool hasDeclaredMoveAssignment() const { 951 return data().DeclaredMoveAssignment; 952 } 953 954 /// \brief Determine whether implicit move assignment generation for this 955 /// class has failed before. 956 bool hasFailedImplicitMoveAssignment() const { 957 return data().FailedImplicitMoveAssignment; 958 } 959 960 /// \brief Set whether implicit move assignment generation for this class 961 /// has failed before. 962 void setFailedImplicitMoveAssignment(bool Failed = true) { 963 data().FailedImplicitMoveAssignment = Failed; 964 } 965 966 /// \brief Determine whether this class should get an implicit move 967 /// assignment operator or if any existing special member function inhibits 968 /// this. 969 /// 970 /// Covers all bullets of C++0x [class.copy]p20 except the last, that the 971 /// constructor wouldn't be deleted. 972 bool needsImplicitMoveAssignment() const { 973 return !hasFailedImplicitMoveAssignment() && 974 !hasDeclaredMoveAssignment() && 975 !hasUserDeclaredCopyConstructor() && 976 !hasUserDeclaredCopyAssignment() && 977 !hasUserDeclaredMoveConstructor() && 978 !hasUserDeclaredDestructor(); 979 } 980 981 /// hasUserDeclaredDestructor - Whether this class has a 982 /// user-declared destructor. When false, a destructor will be 983 /// implicitly declared. 984 bool hasUserDeclaredDestructor() const { 985 return data().UserDeclaredDestructor; 986 } 987 988 /// \brief Determine whether this class has had its destructor declared, 989 /// either via the user or via an implicit declaration. 990 /// 991 /// This value is used for lazy creation of destructors. 992 bool hasDeclaredDestructor() const { return data().DeclaredDestructor; } 993 994 /// \brief Determine whether this class describes a lambda function object. 995 bool isLambda() const { return hasDefinition() && data().IsLambda; } 996 997 /// \brief For a closure type, retrieve the mapping from captured 998 /// variables and this to the non-static data members that store the 999 /// values or references of the captures. 1000 /// 1001 /// \param Captures Will be populated with the mapping from captured 1002 /// variables to the corresponding fields. 1003 /// 1004 /// \param ThisCapture Will be set to the field declaration for the 1005 /// 'this' capture. 1006 void getCaptureFields(llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures, 1007 FieldDecl *&ThisCapture) const; 1008 1009 typedef const LambdaExpr::Capture* capture_const_iterator; 1010 capture_const_iterator captures_begin() const { 1011 return isLambda() ? getLambdaData().Captures : NULL; 1012 } 1013 capture_const_iterator captures_end() const { 1014 return isLambda() ? captures_begin() + getLambdaData().NumCaptures : NULL; 1015 } 1016 1017 /// getConversions - Retrieve the overload set containing all of the 1018 /// conversion functions in this class. 1019 UnresolvedSetImpl *getConversionFunctions() { 1020 return &data().Conversions; 1021 } 1022 const UnresolvedSetImpl *getConversionFunctions() const { 1023 return &data().Conversions; 1024 } 1025 1026 typedef UnresolvedSetImpl::iterator conversion_iterator; 1027 conversion_iterator conversion_begin() const { 1028 return getConversionFunctions()->begin(); 1029 } 1030 conversion_iterator conversion_end() const { 1031 return getConversionFunctions()->end(); 1032 } 1033 1034 /// Removes a conversion function from this class. The conversion 1035 /// function must currently be a member of this class. Furthermore, 1036 /// this class must currently be in the process of being defined. 1037 void removeConversion(const NamedDecl *Old); 1038 1039 /// getVisibleConversionFunctions - get all conversion functions visible 1040 /// in current class; including conversion function templates. 1041 const UnresolvedSetImpl *getVisibleConversionFunctions(); 1042 1043 /// isAggregate - Whether this class is an aggregate (C++ 1044 /// [dcl.init.aggr]), which is a class with no user-declared 1045 /// constructors, no private or protected non-static data members, 1046 /// no base classes, and no virtual functions (C++ [dcl.init.aggr]p1). 1047 bool isAggregate() const { return data().Aggregate; } 1048 1049 /// hasInClassInitializer - Whether this class has any in-class initializers 1050 /// for non-static data members. 1051 bool hasInClassInitializer() const { return data().HasInClassInitializer; } 1052 1053 /// isPOD - Whether this class is a POD-type (C++ [class]p4), which is a class 1054 /// that is an aggregate that has no non-static non-POD data members, no 1055 /// reference data members, no user-defined copy assignment operator and no 1056 /// user-defined destructor. 1057 bool isPOD() const { return data().PlainOldData; } 1058 1059 /// \brief True if this class is C-like, without C++-specific features, e.g. 1060 /// it contains only public fields, no bases, tag kind is not 'class', etc. 1061 bool isCLike() const; 1062 1063 /// isEmpty - Whether this class is empty (C++0x [meta.unary.prop]), which 1064 /// means it has a virtual function, virtual base, data member (other than 1065 /// 0-width bit-field) or inherits from a non-empty class. Does NOT include 1066 /// a check for union-ness. 1067 bool isEmpty() const { return data().Empty; } 1068 1069 /// isPolymorphic - Whether this class is polymorphic (C++ [class.virtual]), 1070 /// which means that the class contains or inherits a virtual function. 1071 bool isPolymorphic() const { return data().Polymorphic; } 1072 1073 /// isAbstract - Whether this class is abstract (C++ [class.abstract]), 1074 /// which means that the class contains or inherits a pure virtual function. 1075 bool isAbstract() const { return data().Abstract; } 1076 1077 /// isStandardLayout - Whether this class has standard layout 1078 /// (C++ [class]p7) 1079 bool isStandardLayout() const { return data().IsStandardLayout; } 1080 1081 /// \brief Whether this class, or any of its class subobjects, contains a 1082 /// mutable field. 1083 bool hasMutableFields() const { return data().HasMutableFields; } 1084 1085 /// hasTrivialDefaultConstructor - Whether this class has a trivial default 1086 /// constructor (C++11 [class.ctor]p5). 1087 bool hasTrivialDefaultConstructor() const { 1088 return data().HasTrivialDefaultConstructor && 1089 (!data().UserDeclaredConstructor || 1090 data().DeclaredDefaultConstructor); 1091 } 1092 1093 /// hasConstexprNonCopyMoveConstructor - Whether this class has at least one 1094 /// constexpr constructor other than the copy or move constructors. 1095 bool hasConstexprNonCopyMoveConstructor() const { 1096 return data().HasConstexprNonCopyMoveConstructor || 1097 (!hasUserDeclaredConstructor() && 1098 defaultedDefaultConstructorIsConstexpr()); 1099 } 1100 1101 /// defaultedDefaultConstructorIsConstexpr - Whether a defaulted default 1102 /// constructor for this class would be constexpr. 1103 bool defaultedDefaultConstructorIsConstexpr() const { 1104 return data().DefaultedDefaultConstructorIsConstexpr && 1105 (!isUnion() || hasInClassInitializer()); 1106 } 1107 1108 /// defaultedCopyConstructorIsConstexpr - Whether a defaulted copy 1109 /// constructor for this class would be constexpr. 1110 bool defaultedCopyConstructorIsConstexpr() const { 1111 return data().DefaultedCopyConstructorIsConstexpr; 1112 } 1113 1114 /// defaultedMoveConstructorIsConstexpr - Whether a defaulted move 1115 /// constructor for this class would be constexpr. 1116 bool defaultedMoveConstructorIsConstexpr() const { 1117 return data().DefaultedMoveConstructorIsConstexpr; 1118 } 1119 1120 /// hasConstexprDefaultConstructor - Whether this class has a constexpr 1121 /// default constructor. 1122 bool hasConstexprDefaultConstructor() const { 1123 return data().HasConstexprDefaultConstructor || 1124 (!data().UserDeclaredConstructor && 1125 defaultedDefaultConstructorIsConstexpr()); 1126 } 1127 1128 /// hasConstexprCopyConstructor - Whether this class has a constexpr copy 1129 /// constructor. 1130 bool hasConstexprCopyConstructor() const { 1131 return data().HasConstexprCopyConstructor || 1132 (!data().DeclaredCopyConstructor && 1133 data().DefaultedCopyConstructorIsConstexpr); 1134 } 1135 1136 /// hasConstexprMoveConstructor - Whether this class has a constexpr move 1137 /// constructor. 1138 bool hasConstexprMoveConstructor() const { 1139 return data().HasConstexprMoveConstructor || 1140 (needsImplicitMoveConstructor() && 1141 data().DefaultedMoveConstructorIsConstexpr); 1142 } 1143 1144 // hasTrivialCopyConstructor - Whether this class has a trivial copy 1145 // constructor (C++ [class.copy]p6, C++0x [class.copy]p13) 1146 bool hasTrivialCopyConstructor() const { 1147 return data().HasTrivialCopyConstructor; 1148 } 1149 1150 // hasTrivialMoveConstructor - Whether this class has a trivial move 1151 // constructor (C++0x [class.copy]p13) 1152 bool hasTrivialMoveConstructor() const { 1153 return data().HasTrivialMoveConstructor; 1154 } 1155 1156 // hasTrivialCopyAssignment - Whether this class has a trivial copy 1157 // assignment operator (C++ [class.copy]p11, C++0x [class.copy]p27) 1158 bool hasTrivialCopyAssignment() const { 1159 return data().HasTrivialCopyAssignment; 1160 } 1161 1162 // hasTrivialMoveAssignment - Whether this class has a trivial move 1163 // assignment operator (C++0x [class.copy]p27) 1164 bool hasTrivialMoveAssignment() const { 1165 return data().HasTrivialMoveAssignment; 1166 } 1167 1168 // hasTrivialDestructor - Whether this class has a trivial destructor 1169 // (C++ [class.dtor]p3) 1170 bool hasTrivialDestructor() const { return data().HasTrivialDestructor; } 1171 1172 // hasIrrelevantDestructor - Whether this class has a destructor which has no 1173 // semantic effect. Any such destructor will be trivial, public, defaulted 1174 // and not deleted, and will call only irrelevant destructors. 1175 bool hasIrrelevantDestructor() const { 1176 return data().HasIrrelevantDestructor; 1177 } 1178 1179 // hasNonLiteralTypeFieldsOrBases - Whether this class has a non-literal or 1180 // volatile type non-static data member or base class. 1181 bool hasNonLiteralTypeFieldsOrBases() const { 1182 return data().HasNonLiteralTypeFieldsOrBases; 1183 } 1184 1185 // isTriviallyCopyable - Whether this class is considered trivially copyable 1186 // (C++0x [class]p6). 1187 bool isTriviallyCopyable() const; 1188 1189 // isTrivial - Whether this class is considered trivial 1190 // 1191 // C++0x [class]p6 1192 // A trivial class is a class that has a trivial default constructor and 1193 // is trivially copiable. 1194 bool isTrivial() const { 1195 return isTriviallyCopyable() && hasTrivialDefaultConstructor(); 1196 } 1197 1198 // isLiteral - Whether this class is a literal type. 1199 // 1200 // C++11 [basic.types]p10 1201 // A class type that has all the following properties: 1202 // -- it has a trivial destructor 1203 // -- every constructor call and full-expression in the 1204 // brace-or-equal-intializers for non-static data members (if any) is 1205 // a constant expression. 1206 // -- it is an aggregate type or has at least one constexpr constructor or 1207 // constructor template that is not a copy or move constructor, and 1208 // -- all of its non-static data members and base classes are of literal 1209 // types 1210 // 1211 // We resolve DR1361 by ignoring the second bullet. We resolve DR1452 by 1212 // treating types with trivial default constructors as literal types. 1213 bool isLiteral() const { 1214 return hasTrivialDestructor() && 1215 (isAggregate() || hasConstexprNonCopyMoveConstructor() || 1216 hasTrivialDefaultConstructor()) && 1217 !hasNonLiteralTypeFieldsOrBases(); 1218 } 1219 1220 /// \brief If this record is an instantiation of a member class, 1221 /// retrieves the member class from which it was instantiated. 1222 /// 1223 /// This routine will return non-NULL for (non-templated) member 1224 /// classes of class templates. For example, given: 1225 /// 1226 /// \code 1227 /// template<typename T> 1228 /// struct X { 1229 /// struct A { }; 1230 /// }; 1231 /// \endcode 1232 /// 1233 /// The declaration for X<int>::A is a (non-templated) CXXRecordDecl 1234 /// whose parent is the class template specialization X<int>. For 1235 /// this declaration, getInstantiatedFromMemberClass() will return 1236 /// the CXXRecordDecl X<T>::A. When a complete definition of 1237 /// X<int>::A is required, it will be instantiated from the 1238 /// declaration returned by getInstantiatedFromMemberClass(). 1239 CXXRecordDecl *getInstantiatedFromMemberClass() const; 1240 1241 /// \brief If this class is an instantiation of a member class of a 1242 /// class template specialization, retrieves the member specialization 1243 /// information. 1244 MemberSpecializationInfo *getMemberSpecializationInfo() const; 1245 1246 /// \brief Specify that this record is an instantiation of the 1247 /// member class RD. 1248 void setInstantiationOfMemberClass(CXXRecordDecl *RD, 1249 TemplateSpecializationKind TSK); 1250 1251 /// \brief Retrieves the class template that is described by this 1252 /// class declaration. 1253 /// 1254 /// Every class template is represented as a ClassTemplateDecl and a 1255 /// CXXRecordDecl. The former contains template properties (such as 1256 /// the template parameter lists) while the latter contains the 1257 /// actual description of the template's 1258 /// contents. ClassTemplateDecl::getTemplatedDecl() retrieves the 1259 /// CXXRecordDecl that from a ClassTemplateDecl, while 1260 /// getDescribedClassTemplate() retrieves the ClassTemplateDecl from 1261 /// a CXXRecordDecl. 1262 ClassTemplateDecl *getDescribedClassTemplate() const { 1263 return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl*>(); 1264 } 1265 1266 void setDescribedClassTemplate(ClassTemplateDecl *Template) { 1267 TemplateOrInstantiation = Template; 1268 } 1269 1270 /// \brief Determine whether this particular class is a specialization or 1271 /// instantiation of a class template or member class of a class template, 1272 /// and how it was instantiated or specialized. 1273 TemplateSpecializationKind getTemplateSpecializationKind() const; 1274 1275 /// \brief Set the kind of specialization or template instantiation this is. 1276 void setTemplateSpecializationKind(TemplateSpecializationKind TSK); 1277 1278 /// getDestructor - Returns the destructor decl for this class. 1279 CXXDestructorDecl *getDestructor() const; 1280 1281 /// isLocalClass - If the class is a local class [class.local], returns 1282 /// the enclosing function declaration. 1283 const FunctionDecl *isLocalClass() const { 1284 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(getDeclContext())) 1285 return RD->isLocalClass(); 1286 1287 return dyn_cast<FunctionDecl>(getDeclContext()); 1288 } 1289 1290 /// \brief Determine whether this class is derived from the class \p Base. 1291 /// 1292 /// This routine only determines whether this class is derived from \p Base, 1293 /// but does not account for factors that may make a Derived -> Base class 1294 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1295 /// base class subobjects. 1296 /// 1297 /// \param Base the base class we are searching for. 1298 /// 1299 /// \returns true if this class is derived from Base, false otherwise. 1300 bool isDerivedFrom(const CXXRecordDecl *Base) const; 1301 1302 /// \brief Determine whether this class is derived from the type \p Base. 1303 /// 1304 /// This routine only determines whether this class is derived from \p Base, 1305 /// but does not account for factors that may make a Derived -> Base class 1306 /// ill-formed, such as private/protected inheritance or multiple, ambiguous 1307 /// base class subobjects. 1308 /// 1309 /// \param Base the base class we are searching for. 1310 /// 1311 /// \param Paths will contain the paths taken from the current class to the 1312 /// given \p Base class. 1313 /// 1314 /// \returns true if this class is derived from Base, false otherwise. 1315 /// 1316 /// \todo add a separate paramaeter to configure IsDerivedFrom, rather than 1317 /// tangling input and output in \p Paths 1318 bool isDerivedFrom(const CXXRecordDecl *Base, CXXBasePaths &Paths) const; 1319 1320 /// \brief Determine whether this class is virtually derived from 1321 /// the class \p Base. 1322 /// 1323 /// This routine only determines whether this class is virtually 1324 /// derived from \p Base, but does not account for factors that may 1325 /// make a Derived -> Base class ill-formed, such as 1326 /// private/protected inheritance or multiple, ambiguous base class 1327 /// subobjects. 1328 /// 1329 /// \param Base the base class we are searching for. 1330 /// 1331 /// \returns true if this class is virtually derived from Base, 1332 /// false otherwise. 1333 bool isVirtuallyDerivedFrom(CXXRecordDecl *Base) const; 1334 1335 /// \brief Determine whether this class is provably not derived from 1336 /// the type \p Base. 1337 bool isProvablyNotDerivedFrom(const CXXRecordDecl *Base) const; 1338 1339 /// \brief Function type used by forallBases() as a callback. 1340 /// 1341 /// \param Base the definition of the base class 1342 /// 1343 /// \returns true if this base matched the search criteria 1344 typedef bool ForallBasesCallback(const CXXRecordDecl *BaseDefinition, 1345 void *UserData); 1346 1347 /// \brief Determines if the given callback holds for all the direct 1348 /// or indirect base classes of this type. 1349 /// 1350 /// The class itself does not count as a base class. This routine 1351 /// returns false if the class has non-computable base classes. 1352 /// 1353 /// \param AllowShortCircuit if false, forces the callback to be called 1354 /// for every base class, even if a dependent or non-matching base was 1355 /// found. 1356 bool forallBases(ForallBasesCallback *BaseMatches, void *UserData, 1357 bool AllowShortCircuit = true) const; 1358 1359 /// \brief Function type used by lookupInBases() to determine whether a 1360 /// specific base class subobject matches the lookup criteria. 1361 /// 1362 /// \param Specifier the base-class specifier that describes the inheritance 1363 /// from the base class we are trying to match. 1364 /// 1365 /// \param Path the current path, from the most-derived class down to the 1366 /// base named by the \p Specifier. 1367 /// 1368 /// \param UserData a single pointer to user-specified data, provided to 1369 /// lookupInBases(). 1370 /// 1371 /// \returns true if this base matched the search criteria, false otherwise. 1372 typedef bool BaseMatchesCallback(const CXXBaseSpecifier *Specifier, 1373 CXXBasePath &Path, 1374 void *UserData); 1375 1376 /// \brief Look for entities within the base classes of this C++ class, 1377 /// transitively searching all base class subobjects. 1378 /// 1379 /// This routine uses the callback function \p BaseMatches to find base 1380 /// classes meeting some search criteria, walking all base class subobjects 1381 /// and populating the given \p Paths structure with the paths through the 1382 /// inheritance hierarchy that resulted in a match. On a successful search, 1383 /// the \p Paths structure can be queried to retrieve the matching paths and 1384 /// to determine if there were any ambiguities. 1385 /// 1386 /// \param BaseMatches callback function used to determine whether a given 1387 /// base matches the user-defined search criteria. 1388 /// 1389 /// \param UserData user data pointer that will be provided to \p BaseMatches. 1390 /// 1391 /// \param Paths used to record the paths from this class to its base class 1392 /// subobjects that match the search criteria. 1393 /// 1394 /// \returns true if there exists any path from this class to a base class 1395 /// subobject that matches the search criteria. 1396 bool lookupInBases(BaseMatchesCallback *BaseMatches, void *UserData, 1397 CXXBasePaths &Paths) const; 1398 1399 /// \brief Base-class lookup callback that determines whether the given 1400 /// base class specifier refers to a specific class declaration. 1401 /// 1402 /// This callback can be used with \c lookupInBases() to determine whether 1403 /// a given derived class has is a base class subobject of a particular type. 1404 /// The user data pointer should refer to the canonical CXXRecordDecl of the 1405 /// base class that we are searching for. 1406 static bool FindBaseClass(const CXXBaseSpecifier *Specifier, 1407 CXXBasePath &Path, void *BaseRecord); 1408 1409 /// \brief Base-class lookup callback that determines whether the 1410 /// given base class specifier refers to a specific class 1411 /// declaration and describes virtual derivation. 1412 /// 1413 /// This callback can be used with \c lookupInBases() to determine 1414 /// whether a given derived class has is a virtual base class 1415 /// subobject of a particular type. The user data pointer should 1416 /// refer to the canonical CXXRecordDecl of the base class that we 1417 /// are searching for. 1418 static bool FindVirtualBaseClass(const CXXBaseSpecifier *Specifier, 1419 CXXBasePath &Path, void *BaseRecord); 1420 1421 /// \brief Base-class lookup callback that determines whether there exists 1422 /// a tag with the given name. 1423 /// 1424 /// This callback can be used with \c lookupInBases() to find tag members 1425 /// of the given name within a C++ class hierarchy. The user data pointer 1426 /// is an opaque \c DeclarationName pointer. 1427 static bool FindTagMember(const CXXBaseSpecifier *Specifier, 1428 CXXBasePath &Path, void *Name); 1429 1430 /// \brief Base-class lookup callback that determines whether there exists 1431 /// a member with the given name. 1432 /// 1433 /// This callback can be used with \c lookupInBases() to find members 1434 /// of the given name within a C++ class hierarchy. The user data pointer 1435 /// is an opaque \c DeclarationName pointer. 1436 static bool FindOrdinaryMember(const CXXBaseSpecifier *Specifier, 1437 CXXBasePath &Path, void *Name); 1438 1439 /// \brief Base-class lookup callback that determines whether there exists 1440 /// a member with the given name that can be used in a nested-name-specifier. 1441 /// 1442 /// This callback can be used with \c lookupInBases() to find membes of 1443 /// the given name within a C++ class hierarchy that can occur within 1444 /// nested-name-specifiers. 1445 static bool FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier, 1446 CXXBasePath &Path, 1447 void *UserData); 1448 1449 /// \brief Retrieve the final overriders for each virtual member 1450 /// function in the class hierarchy where this class is the 1451 /// most-derived class in the class hierarchy. 1452 void getFinalOverriders(CXXFinalOverriderMap &FinaOverriders) const; 1453 1454 /// \brief Get the indirect primary bases for this class. 1455 void getIndirectPrimaryBases(CXXIndirectPrimaryBaseSet& Bases) const; 1456 1457 /// viewInheritance - Renders and displays an inheritance diagram 1458 /// for this C++ class and all of its base classes (transitively) using 1459 /// GraphViz. 1460 void viewInheritance(ASTContext& Context) const; 1461 1462 /// MergeAccess - Calculates the access of a decl that is reached 1463 /// along a path. 1464 static AccessSpecifier MergeAccess(AccessSpecifier PathAccess, 1465 AccessSpecifier DeclAccess) { 1466 assert(DeclAccess != AS_none); 1467 if (DeclAccess == AS_private) return AS_none; 1468 return (PathAccess > DeclAccess ? PathAccess : DeclAccess); 1469 } 1470 1471 /// \brief Indicates that the definition of this class is now complete. 1472 virtual void completeDefinition(); 1473 1474 /// \brief Indicates that the definition of this class is now complete, 1475 /// and provides a final overrider map to help determine 1476 /// 1477 /// \param FinalOverriders The final overrider map for this class, which can 1478 /// be provided as an optimization for abstract-class checking. If NULL, 1479 /// final overriders will be computed if they are needed to complete the 1480 /// definition. 1481 void completeDefinition(CXXFinalOverriderMap *FinalOverriders); 1482 1483 /// \brief Determine whether this class may end up being abstract, even though 1484 /// it is not yet known to be abstract. 1485 /// 1486 /// \returns true if this class is not known to be abstract but has any 1487 /// base classes that are abstract. In this case, \c completeDefinition() 1488 /// will need to compute final overriders to determine whether the class is 1489 /// actually abstract. 1490 bool mayBeAbstract() const; 1491 1492 /// \brief If this is the closure type of a lambda expression, retrieve the 1493 /// number to be used for name mangling in the Itanium C++ ABI. 1494 /// 1495 /// Zero indicates that this closure type has internal linkage, so the 1496 /// mangling number does not matter, while a non-zero value indicates which 1497 /// lambda expression this is in this particular context. 1498 unsigned getLambdaManglingNumber() const { 1499 assert(isLambda() && "Not a lambda closure type!"); 1500 return getLambdaData().ManglingNumber; 1501 } 1502 1503 /// \brief Retrieve the declaration that provides additional context for a 1504 /// lambda, when the normal declaration context is not specific enough. 1505 /// 1506 /// Certain contexts (default arguments of in-class function parameters and 1507 /// the initializers of data members) have separate name mangling rules for 1508 /// lambdas within the Itanium C++ ABI. For these cases, this routine provides 1509 /// the declaration in which the lambda occurs, e.g., the function parameter 1510 /// or the non-static data member. Otherwise, it returns NULL to imply that 1511 /// the declaration context suffices. 1512 Decl *getLambdaContextDecl() const { 1513 assert(isLambda() && "Not a lambda closure type!"); 1514 return getLambdaData().ContextDecl; 1515 } 1516 1517 /// \brief Set the mangling number and context declaration for a lambda 1518 /// class. 1519 void setLambdaMangling(unsigned ManglingNumber, Decl *ContextDecl) { 1520 getLambdaData().ManglingNumber = ManglingNumber; 1521 getLambdaData().ContextDecl = ContextDecl; 1522 } 1523 1524 /// \brief Determine whether this lambda expression was known to be dependent 1525 /// at the time it was created, even if its context does not appear to be 1526 /// dependent. 1527 /// 1528 /// This flag is a workaround for an issue with parsing, where default 1529 /// arguments are parsed before their enclosing function declarations have 1530 /// been created. This means that any lambda expressions within those 1531 /// default arguments will have as their DeclContext the context enclosing 1532 /// the function declaration, which may be non-dependent even when the 1533 /// function declaration itself is dependent. This flag indicates when we 1534 /// know that the lambda is dependent despite that. 1535 bool isDependentLambda() const { 1536 return isLambda() && getLambdaData().Dependent; 1537 } 1538 1539 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1540 static bool classofKind(Kind K) { 1541 return K >= firstCXXRecord && K <= lastCXXRecord; 1542 } 1543 static bool classof(const CXXRecordDecl *D) { return true; } 1544 static bool classof(const ClassTemplateSpecializationDecl *D) { 1545 return true; 1546 } 1547 1548 friend class ASTDeclReader; 1549 friend class ASTDeclWriter; 1550 friend class ASTReader; 1551 friend class ASTWriter; 1552}; 1553 1554/// CXXMethodDecl - Represents a static or instance method of a 1555/// struct/union/class. 1556class CXXMethodDecl : public FunctionDecl { 1557 virtual void anchor(); 1558protected: 1559 CXXMethodDecl(Kind DK, CXXRecordDecl *RD, SourceLocation StartLoc, 1560 const DeclarationNameInfo &NameInfo, 1561 QualType T, TypeSourceInfo *TInfo, 1562 bool isStatic, StorageClass SCAsWritten, bool isInline, 1563 bool isConstexpr, SourceLocation EndLocation) 1564 : FunctionDecl(DK, RD, StartLoc, NameInfo, T, TInfo, 1565 (isStatic ? SC_Static : SC_None), 1566 SCAsWritten, isInline, isConstexpr) { 1567 if (EndLocation.isValid()) 1568 setRangeEnd(EndLocation); 1569 } 1570 1571public: 1572 static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1573 SourceLocation StartLoc, 1574 const DeclarationNameInfo &NameInfo, 1575 QualType T, TypeSourceInfo *TInfo, 1576 bool isStatic, 1577 StorageClass SCAsWritten, 1578 bool isInline, 1579 bool isConstexpr, 1580 SourceLocation EndLocation); 1581 1582 static CXXMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1583 1584 bool isStatic() const { return getStorageClass() == SC_Static; } 1585 bool isInstance() const { return !isStatic(); } 1586 1587 bool isVirtual() const { 1588 CXXMethodDecl *CD = 1589 cast<CXXMethodDecl>(const_cast<CXXMethodDecl*>(this)->getCanonicalDecl()); 1590 1591 if (CD->isVirtualAsWritten()) 1592 return true; 1593 1594 return (CD->begin_overridden_methods() != CD->end_overridden_methods()); 1595 } 1596 1597 /// \brief Determine whether this is a usual deallocation function 1598 /// (C++ [basic.stc.dynamic.deallocation]p2), which is an overloaded 1599 /// delete or delete[] operator with a particular signature. 1600 bool isUsualDeallocationFunction() const; 1601 1602 /// \brief Determine whether this is a copy-assignment operator, regardless 1603 /// of whether it was declared implicitly or explicitly. 1604 bool isCopyAssignmentOperator() const; 1605 1606 /// \brief Determine whether this is a move assignment operator. 1607 bool isMoveAssignmentOperator() const; 1608 1609 const CXXMethodDecl *getCanonicalDecl() const { 1610 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1611 } 1612 CXXMethodDecl *getCanonicalDecl() { 1613 return cast<CXXMethodDecl>(FunctionDecl::getCanonicalDecl()); 1614 } 1615 1616 /// isUserProvided - True if this method is user-declared and was not 1617 /// deleted or defaulted on its first declaration. 1618 bool isUserProvided() const { 1619 return !(isDeleted() || getCanonicalDecl()->isDefaulted()); 1620 } 1621 1622 /// 1623 void addOverriddenMethod(const CXXMethodDecl *MD); 1624 1625 typedef const CXXMethodDecl *const* method_iterator; 1626 1627 method_iterator begin_overridden_methods() const; 1628 method_iterator end_overridden_methods() const; 1629 unsigned size_overridden_methods() const; 1630 1631 /// getParent - Returns the parent of this method declaration, which 1632 /// is the class in which this method is defined. 1633 const CXXRecordDecl *getParent() const { 1634 return cast<CXXRecordDecl>(FunctionDecl::getParent()); 1635 } 1636 1637 /// getParent - Returns the parent of this method declaration, which 1638 /// is the class in which this method is defined. 1639 CXXRecordDecl *getParent() { 1640 return const_cast<CXXRecordDecl *>( 1641 cast<CXXRecordDecl>(FunctionDecl::getParent())); 1642 } 1643 1644 /// getThisType - Returns the type of 'this' pointer. 1645 /// Should only be called for instance methods. 1646 QualType getThisType(ASTContext &C) const; 1647 1648 unsigned getTypeQualifiers() const { 1649 return getType()->getAs<FunctionProtoType>()->getTypeQuals(); 1650 } 1651 1652 /// \brief Retrieve the ref-qualifier associated with this method. 1653 /// 1654 /// In the following example, \c f() has an lvalue ref-qualifier, \c g() 1655 /// has an rvalue ref-qualifier, and \c h() has no ref-qualifier. 1656 /// \code 1657 /// struct X { 1658 /// void f() &; 1659 /// void g() &&; 1660 /// void h(); 1661 /// }; 1662 /// \endcode 1663 RefQualifierKind getRefQualifier() const { 1664 return getType()->getAs<FunctionProtoType>()->getRefQualifier(); 1665 } 1666 1667 bool hasInlineBody() const; 1668 1669 /// \brief Determine whether this is a lambda closure type's static member 1670 /// function that is used for the result of the lambda's conversion to 1671 /// function pointer (for a lambda with no captures). 1672 /// 1673 /// The function itself, if used, will have a placeholder body that will be 1674 /// supplied by IR generation to either forward to the function call operator 1675 /// or clone the function call operator. 1676 bool isLambdaStaticInvoker() const; 1677 1678 // Implement isa/cast/dyncast/etc. 1679 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 1680 static bool classof(const CXXMethodDecl *D) { return true; } 1681 static bool classofKind(Kind K) { 1682 return K >= firstCXXMethod && K <= lastCXXMethod; 1683 } 1684}; 1685 1686/// CXXCtorInitializer - Represents a C++ base or member 1687/// initializer, which is part of a constructor initializer that 1688/// initializes one non-static member variable or one base class. For 1689/// example, in the following, both 'A(a)' and 'f(3.14159)' are member 1690/// initializers: 1691/// 1692/// @code 1693/// class A { }; 1694/// class B : public A { 1695/// float f; 1696/// public: 1697/// B(A& a) : A(a), f(3.14159) { } 1698/// }; 1699/// @endcode 1700class CXXCtorInitializer { 1701 /// \brief Either the base class name/delegating constructor type (stored as 1702 /// a TypeSourceInfo*), an normal field (FieldDecl), or an anonymous field 1703 /// (IndirectFieldDecl*) being initialized. 1704 llvm::PointerUnion3<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *> 1705 Initializee; 1706 1707 /// \brief The source location for the field name or, for a base initializer 1708 /// pack expansion, the location of the ellipsis. In the case of a delegating 1709 /// constructor, it will still include the type's source location as the 1710 /// Initializee points to the CXXConstructorDecl (to allow loop detection). 1711 SourceLocation MemberOrEllipsisLocation; 1712 1713 /// \brief The argument used to initialize the base or member, which may 1714 /// end up constructing an object (when multiple arguments are involved). 1715 /// If 0, this is a field initializer, and the in-class member initializer 1716 /// will be used. 1717 Stmt *Init; 1718 1719 /// LParenLoc - Location of the left paren of the ctor-initializer. 1720 SourceLocation LParenLoc; 1721 1722 /// RParenLoc - Location of the right paren of the ctor-initializer. 1723 SourceLocation RParenLoc; 1724 1725 /// \brief If the initializee is a type, whether that type makes this 1726 /// a delegating initialization. 1727 bool IsDelegating : 1; 1728 1729 /// IsVirtual - If the initializer is a base initializer, this keeps track 1730 /// of whether the base is virtual or not. 1731 bool IsVirtual : 1; 1732 1733 /// IsWritten - Whether or not the initializer is explicitly written 1734 /// in the sources. 1735 bool IsWritten : 1; 1736 1737 /// SourceOrderOrNumArrayIndices - If IsWritten is true, then this 1738 /// number keeps track of the textual order of this initializer in the 1739 /// original sources, counting from 0; otherwise, if IsWritten is false, 1740 /// it stores the number of array index variables stored after this 1741 /// object in memory. 1742 unsigned SourceOrderOrNumArrayIndices : 13; 1743 1744 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1745 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1746 SourceLocation R, VarDecl **Indices, unsigned NumIndices); 1747 1748public: 1749 /// CXXCtorInitializer - Creates a new base-class initializer. 1750 explicit 1751 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, bool IsVirtual, 1752 SourceLocation L, Expr *Init, SourceLocation R, 1753 SourceLocation EllipsisLoc); 1754 1755 /// CXXCtorInitializer - Creates a new member initializer. 1756 explicit 1757 CXXCtorInitializer(ASTContext &Context, FieldDecl *Member, 1758 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1759 SourceLocation R); 1760 1761 /// CXXCtorInitializer - Creates a new anonymous field initializer. 1762 explicit 1763 CXXCtorInitializer(ASTContext &Context, IndirectFieldDecl *Member, 1764 SourceLocation MemberLoc, SourceLocation L, Expr *Init, 1765 SourceLocation R); 1766 1767 /// CXXCtorInitializer - Creates a new delegating Initializer. 1768 explicit 1769 CXXCtorInitializer(ASTContext &Context, TypeSourceInfo *TInfo, 1770 SourceLocation L, Expr *Init, SourceLocation R); 1771 1772 /// \brief Creates a new member initializer that optionally contains 1773 /// array indices used to describe an elementwise initialization. 1774 static CXXCtorInitializer *Create(ASTContext &Context, FieldDecl *Member, 1775 SourceLocation MemberLoc, SourceLocation L, 1776 Expr *Init, SourceLocation R, 1777 VarDecl **Indices, unsigned NumIndices); 1778 1779 /// isBaseInitializer - Returns true when this initializer is 1780 /// initializing a base class. 1781 bool isBaseInitializer() const { 1782 return Initializee.is<TypeSourceInfo*>() && !IsDelegating; 1783 } 1784 1785 /// isMemberInitializer - Returns true when this initializer is 1786 /// initializing a non-static data member. 1787 bool isMemberInitializer() const { return Initializee.is<FieldDecl*>(); } 1788 1789 bool isAnyMemberInitializer() const { 1790 return isMemberInitializer() || isIndirectMemberInitializer(); 1791 } 1792 1793 bool isIndirectMemberInitializer() const { 1794 return Initializee.is<IndirectFieldDecl*>(); 1795 } 1796 1797 /// isInClassMemberInitializer - Returns true when this initializer is an 1798 /// implicit ctor initializer generated for a field with an initializer 1799 /// defined on the member declaration. 1800 bool isInClassMemberInitializer() const { 1801 return !Init; 1802 } 1803 1804 /// isDelegatingInitializer - Returns true when this initializer is creating 1805 /// a delegating constructor. 1806 bool isDelegatingInitializer() const { 1807 return Initializee.is<TypeSourceInfo*>() && IsDelegating; 1808 } 1809 1810 /// \brief Determine whether this initializer is a pack expansion. 1811 bool isPackExpansion() const { 1812 return isBaseInitializer() && MemberOrEllipsisLocation.isValid(); 1813 } 1814 1815 // \brief For a pack expansion, returns the location of the ellipsis. 1816 SourceLocation getEllipsisLoc() const { 1817 assert(isPackExpansion() && "Initializer is not a pack expansion"); 1818 return MemberOrEllipsisLocation; 1819 } 1820 1821 /// If this is a base class initializer, returns the type of the 1822 /// base class with location information. Otherwise, returns an NULL 1823 /// type location. 1824 TypeLoc getBaseClassLoc() const; 1825 1826 /// If this is a base class initializer, returns the type of the base class. 1827 /// Otherwise, returns NULL. 1828 const Type *getBaseClass() const; 1829 1830 /// Returns whether the base is virtual or not. 1831 bool isBaseVirtual() const { 1832 assert(isBaseInitializer() && "Must call this on base initializer!"); 1833 1834 return IsVirtual; 1835 } 1836 1837 /// \brief Returns the declarator information for a base class or delegating 1838 /// initializer. 1839 TypeSourceInfo *getTypeSourceInfo() const { 1840 return Initializee.dyn_cast<TypeSourceInfo *>(); 1841 } 1842 1843 /// getMember - If this is a member initializer, returns the 1844 /// declaration of the non-static data member being 1845 /// initialized. Otherwise, returns NULL. 1846 FieldDecl *getMember() const { 1847 if (isMemberInitializer()) 1848 return Initializee.get<FieldDecl*>(); 1849 return 0; 1850 } 1851 FieldDecl *getAnyMember() const { 1852 if (isMemberInitializer()) 1853 return Initializee.get<FieldDecl*>(); 1854 if (isIndirectMemberInitializer()) 1855 return Initializee.get<IndirectFieldDecl*>()->getAnonField(); 1856 return 0; 1857 } 1858 1859 IndirectFieldDecl *getIndirectMember() const { 1860 if (isIndirectMemberInitializer()) 1861 return Initializee.get<IndirectFieldDecl*>(); 1862 return 0; 1863 } 1864 1865 SourceLocation getMemberLocation() const { 1866 return MemberOrEllipsisLocation; 1867 } 1868 1869 /// \brief Determine the source location of the initializer. 1870 SourceLocation getSourceLocation() const; 1871 1872 /// \brief Determine the source range covering the entire initializer. 1873 SourceRange getSourceRange() const LLVM_READONLY; 1874 1875 /// isWritten - Returns true if this initializer is explicitly written 1876 /// in the source code. 1877 bool isWritten() const { return IsWritten; } 1878 1879 /// \brief Return the source position of the initializer, counting from 0. 1880 /// If the initializer was implicit, -1 is returned. 1881 int getSourceOrder() const { 1882 return IsWritten ? static_cast<int>(SourceOrderOrNumArrayIndices) : -1; 1883 } 1884 1885 /// \brief Set the source order of this initializer. This method can only 1886 /// be called once for each initializer; it cannot be called on an 1887 /// initializer having a positive number of (implicit) array indices. 1888 void setSourceOrder(int pos) { 1889 assert(!IsWritten && 1890 "calling twice setSourceOrder() on the same initializer"); 1891 assert(SourceOrderOrNumArrayIndices == 0 && 1892 "setSourceOrder() used when there are implicit array indices"); 1893 assert(pos >= 0 && 1894 "setSourceOrder() used to make an initializer implicit"); 1895 IsWritten = true; 1896 SourceOrderOrNumArrayIndices = static_cast<unsigned>(pos); 1897 } 1898 1899 SourceLocation getLParenLoc() const { return LParenLoc; } 1900 SourceLocation getRParenLoc() const { return RParenLoc; } 1901 1902 /// \brief Determine the number of implicit array indices used while 1903 /// described an array member initialization. 1904 unsigned getNumArrayIndices() const { 1905 return IsWritten ? 0 : SourceOrderOrNumArrayIndices; 1906 } 1907 1908 /// \brief Retrieve a particular array index variable used to 1909 /// describe an array member initialization. 1910 VarDecl *getArrayIndex(unsigned I) { 1911 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1912 return reinterpret_cast<VarDecl **>(this + 1)[I]; 1913 } 1914 const VarDecl *getArrayIndex(unsigned I) const { 1915 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1916 return reinterpret_cast<const VarDecl * const *>(this + 1)[I]; 1917 } 1918 void setArrayIndex(unsigned I, VarDecl *Index) { 1919 assert(I < getNumArrayIndices() && "Out of bounds member array index"); 1920 reinterpret_cast<VarDecl **>(this + 1)[I] = Index; 1921 } 1922 ArrayRef<VarDecl *> getArrayIndexes() { 1923 assert(getNumArrayIndices() != 0 && "Getting indexes for non-array init"); 1924 return ArrayRef<VarDecl *>(reinterpret_cast<VarDecl **>(this + 1), 1925 getNumArrayIndices()); 1926 } 1927 1928 /// \brief Get the initializer. This is 0 if this is an in-class initializer 1929 /// for a non-static data member which has not yet been parsed. 1930 Expr *getInit() const { 1931 if (!Init) 1932 return getAnyMember()->getInClassInitializer(); 1933 1934 return static_cast<Expr*>(Init); 1935 } 1936}; 1937 1938/// CXXConstructorDecl - Represents a C++ constructor within a 1939/// class. For example: 1940/// 1941/// @code 1942/// class X { 1943/// public: 1944/// explicit X(int); // represented by a CXXConstructorDecl. 1945/// }; 1946/// @endcode 1947class CXXConstructorDecl : public CXXMethodDecl { 1948 virtual void anchor(); 1949 /// IsExplicitSpecified - Whether this constructor declaration has the 1950 /// 'explicit' keyword specified. 1951 bool IsExplicitSpecified : 1; 1952 1953 /// ImplicitlyDefined - Whether this constructor was implicitly 1954 /// defined by the compiler. When false, the constructor was defined 1955 /// by the user. In C++03, this flag will have the same value as 1956 /// Implicit. In C++0x, however, a constructor that is 1957 /// explicitly defaulted (i.e., defined with " = default") will have 1958 /// @c !Implicit && ImplicitlyDefined. 1959 bool ImplicitlyDefined : 1; 1960 1961 /// Support for base and member initializers. 1962 /// CtorInitializers - The arguments used to initialize the base 1963 /// or member. 1964 CXXCtorInitializer **CtorInitializers; 1965 unsigned NumCtorInitializers; 1966 1967 CXXConstructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 1968 const DeclarationNameInfo &NameInfo, 1969 QualType T, TypeSourceInfo *TInfo, 1970 bool isExplicitSpecified, bool isInline, 1971 bool isImplicitlyDeclared, bool isConstexpr) 1972 : CXXMethodDecl(CXXConstructor, RD, StartLoc, NameInfo, T, TInfo, false, 1973 SC_None, isInline, isConstexpr, SourceLocation()), 1974 IsExplicitSpecified(isExplicitSpecified), ImplicitlyDefined(false), 1975 CtorInitializers(0), NumCtorInitializers(0) { 1976 setImplicit(isImplicitlyDeclared); 1977 } 1978 1979public: 1980 static CXXConstructorDecl *CreateDeserialized(ASTContext &C, unsigned ID); 1981 static CXXConstructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 1982 SourceLocation StartLoc, 1983 const DeclarationNameInfo &NameInfo, 1984 QualType T, TypeSourceInfo *TInfo, 1985 bool isExplicit, 1986 bool isInline, bool isImplicitlyDeclared, 1987 bool isConstexpr); 1988 1989 /// isExplicitSpecified - Whether this constructor declaration has the 1990 /// 'explicit' keyword specified. 1991 bool isExplicitSpecified() const { return IsExplicitSpecified; } 1992 1993 /// isExplicit - Whether this constructor was marked "explicit" or not. 1994 bool isExplicit() const { 1995 return cast<CXXConstructorDecl>(getFirstDeclaration()) 1996 ->isExplicitSpecified(); 1997 } 1998 1999 /// isImplicitlyDefined - Whether this constructor was implicitly 2000 /// defined. If false, then this constructor was defined by the 2001 /// user. This operation can only be invoked if the constructor has 2002 /// already been defined. 2003 bool isImplicitlyDefined() const { 2004 assert(isThisDeclarationADefinition() && 2005 "Can only get the implicit-definition flag once the " 2006 "constructor has been defined"); 2007 return ImplicitlyDefined; 2008 } 2009 2010 /// setImplicitlyDefined - Set whether this constructor was 2011 /// implicitly defined or not. 2012 void setImplicitlyDefined(bool ID) { 2013 assert(isThisDeclarationADefinition() && 2014 "Can only set the implicit-definition flag once the constructor " 2015 "has been defined"); 2016 ImplicitlyDefined = ID; 2017 } 2018 2019 /// init_iterator - Iterates through the member/base initializer list. 2020 typedef CXXCtorInitializer **init_iterator; 2021 2022 /// init_const_iterator - Iterates through the memberbase initializer list. 2023 typedef CXXCtorInitializer * const * init_const_iterator; 2024 2025 /// init_begin() - Retrieve an iterator to the first initializer. 2026 init_iterator init_begin() { return CtorInitializers; } 2027 /// begin() - Retrieve an iterator to the first initializer. 2028 init_const_iterator init_begin() const { return CtorInitializers; } 2029 2030 /// init_end() - Retrieve an iterator past the last initializer. 2031 init_iterator init_end() { 2032 return CtorInitializers + NumCtorInitializers; 2033 } 2034 /// end() - Retrieve an iterator past the last initializer. 2035 init_const_iterator init_end() const { 2036 return CtorInitializers + NumCtorInitializers; 2037 } 2038 2039 typedef std::reverse_iterator<init_iterator> init_reverse_iterator; 2040 typedef std::reverse_iterator<init_const_iterator> 2041 init_const_reverse_iterator; 2042 2043 init_reverse_iterator init_rbegin() { 2044 return init_reverse_iterator(init_end()); 2045 } 2046 init_const_reverse_iterator init_rbegin() const { 2047 return init_const_reverse_iterator(init_end()); 2048 } 2049 2050 init_reverse_iterator init_rend() { 2051 return init_reverse_iterator(init_begin()); 2052 } 2053 init_const_reverse_iterator init_rend() const { 2054 return init_const_reverse_iterator(init_begin()); 2055 } 2056 2057 /// getNumArgs - Determine the number of arguments used to 2058 /// initialize the member or base. 2059 unsigned getNumCtorInitializers() const { 2060 return NumCtorInitializers; 2061 } 2062 2063 void setNumCtorInitializers(unsigned numCtorInitializers) { 2064 NumCtorInitializers = numCtorInitializers; 2065 } 2066 2067 void setCtorInitializers(CXXCtorInitializer ** initializers) { 2068 CtorInitializers = initializers; 2069 } 2070 2071 /// isDelegatingConstructor - Whether this constructor is a 2072 /// delegating constructor 2073 bool isDelegatingConstructor() const { 2074 return (getNumCtorInitializers() == 1) && 2075 CtorInitializers[0]->isDelegatingInitializer(); 2076 } 2077 2078 /// getTargetConstructor - When this constructor delegates to 2079 /// another, retrieve the target 2080 CXXConstructorDecl *getTargetConstructor() const; 2081 2082 /// isDefaultConstructor - Whether this constructor is a default 2083 /// constructor (C++ [class.ctor]p5), which can be used to 2084 /// default-initialize a class of this type. 2085 bool isDefaultConstructor() const; 2086 2087 /// isCopyConstructor - Whether this constructor is a copy 2088 /// constructor (C++ [class.copy]p2, which can be used to copy the 2089 /// class. @p TypeQuals will be set to the qualifiers on the 2090 /// argument type. For example, @p TypeQuals would be set to @c 2091 /// QualType::Const for the following copy constructor: 2092 /// 2093 /// @code 2094 /// class X { 2095 /// public: 2096 /// X(const X&); 2097 /// }; 2098 /// @endcode 2099 bool isCopyConstructor(unsigned &TypeQuals) const; 2100 2101 /// isCopyConstructor - Whether this constructor is a copy 2102 /// constructor (C++ [class.copy]p2, which can be used to copy the 2103 /// class. 2104 bool isCopyConstructor() const { 2105 unsigned TypeQuals = 0; 2106 return isCopyConstructor(TypeQuals); 2107 } 2108 2109 /// \brief Determine whether this constructor is a move constructor 2110 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2111 /// 2112 /// \param TypeQuals If this constructor is a move constructor, will be set 2113 /// to the type qualifiers on the referent of the first parameter's type. 2114 bool isMoveConstructor(unsigned &TypeQuals) const; 2115 2116 /// \brief Determine whether this constructor is a move constructor 2117 /// (C++0x [class.copy]p3), which can be used to move values of the class. 2118 bool isMoveConstructor() const { 2119 unsigned TypeQuals = 0; 2120 return isMoveConstructor(TypeQuals); 2121 } 2122 2123 /// \brief Determine whether this is a copy or move constructor. 2124 /// 2125 /// \param TypeQuals Will be set to the type qualifiers on the reference 2126 /// parameter, if in fact this is a copy or move constructor. 2127 bool isCopyOrMoveConstructor(unsigned &TypeQuals) const; 2128 2129 /// \brief Determine whether this a copy or move constructor. 2130 bool isCopyOrMoveConstructor() const { 2131 unsigned Quals; 2132 return isCopyOrMoveConstructor(Quals); 2133 } 2134 2135 /// isConvertingConstructor - Whether this constructor is a 2136 /// converting constructor (C++ [class.conv.ctor]), which can be 2137 /// used for user-defined conversions. 2138 bool isConvertingConstructor(bool AllowExplicit) const; 2139 2140 /// \brief Determine whether this is a member template specialization that 2141 /// would copy the object to itself. Such constructors are never used to copy 2142 /// an object. 2143 bool isSpecializationCopyingObject() const; 2144 2145 /// \brief Get the constructor that this inheriting constructor is based on. 2146 const CXXConstructorDecl *getInheritedConstructor() const; 2147 2148 /// \brief Set the constructor that this inheriting constructor is based on. 2149 void setInheritedConstructor(const CXXConstructorDecl *BaseCtor); 2150 2151 const CXXConstructorDecl *getCanonicalDecl() const { 2152 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2153 } 2154 CXXConstructorDecl *getCanonicalDecl() { 2155 return cast<CXXConstructorDecl>(FunctionDecl::getCanonicalDecl()); 2156 } 2157 2158 // Implement isa/cast/dyncast/etc. 2159 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2160 static bool classof(const CXXConstructorDecl *D) { return true; } 2161 static bool classofKind(Kind K) { return K == CXXConstructor; } 2162 2163 friend class ASTDeclReader; 2164 friend class ASTDeclWriter; 2165}; 2166 2167/// CXXDestructorDecl - Represents a C++ destructor within a 2168/// class. For example: 2169/// 2170/// @code 2171/// class X { 2172/// public: 2173/// ~X(); // represented by a CXXDestructorDecl. 2174/// }; 2175/// @endcode 2176class CXXDestructorDecl : public CXXMethodDecl { 2177 virtual void anchor(); 2178 /// ImplicitlyDefined - Whether this destructor was implicitly 2179 /// defined by the compiler. When false, the destructor was defined 2180 /// by the user. In C++03, this flag will have the same value as 2181 /// Implicit. In C++0x, however, a destructor that is 2182 /// explicitly defaulted (i.e., defined with " = default") will have 2183 /// @c !Implicit && ImplicitlyDefined. 2184 bool ImplicitlyDefined : 1; 2185 2186 FunctionDecl *OperatorDelete; 2187 2188 CXXDestructorDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2189 const DeclarationNameInfo &NameInfo, 2190 QualType T, TypeSourceInfo *TInfo, 2191 bool isInline, bool isImplicitlyDeclared) 2192 : CXXMethodDecl(CXXDestructor, RD, StartLoc, NameInfo, T, TInfo, false, 2193 SC_None, isInline, /*isConstexpr=*/false, SourceLocation()), 2194 ImplicitlyDefined(false), OperatorDelete(0) { 2195 setImplicit(isImplicitlyDeclared); 2196 } 2197 2198public: 2199 static CXXDestructorDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2200 SourceLocation StartLoc, 2201 const DeclarationNameInfo &NameInfo, 2202 QualType T, TypeSourceInfo* TInfo, 2203 bool isInline, 2204 bool isImplicitlyDeclared); 2205 static CXXDestructorDecl *CreateDeserialized(ASTContext & C, unsigned ID); 2206 2207 /// isImplicitlyDefined - Whether this destructor was implicitly 2208 /// defined. If false, then this destructor was defined by the 2209 /// user. This operation can only be invoked if the destructor has 2210 /// already been defined. 2211 bool isImplicitlyDefined() const { 2212 assert(isThisDeclarationADefinition() && 2213 "Can only get the implicit-definition flag once the destructor has " 2214 "been defined"); 2215 return ImplicitlyDefined; 2216 } 2217 2218 /// setImplicitlyDefined - Set whether this destructor was 2219 /// implicitly defined or not. 2220 void setImplicitlyDefined(bool ID) { 2221 assert(isThisDeclarationADefinition() && 2222 "Can only set the implicit-definition flag once the destructor has " 2223 "been defined"); 2224 ImplicitlyDefined = ID; 2225 } 2226 2227 void setOperatorDelete(FunctionDecl *OD) { OperatorDelete = OD; } 2228 const FunctionDecl *getOperatorDelete() const { return OperatorDelete; } 2229 2230 // Implement isa/cast/dyncast/etc. 2231 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2232 static bool classof(const CXXDestructorDecl *D) { return true; } 2233 static bool classofKind(Kind K) { return K == CXXDestructor; } 2234 2235 friend class ASTDeclReader; 2236 friend class ASTDeclWriter; 2237}; 2238 2239/// CXXConversionDecl - Represents a C++ conversion function within a 2240/// class. For example: 2241/// 2242/// @code 2243/// class X { 2244/// public: 2245/// operator bool(); 2246/// }; 2247/// @endcode 2248class CXXConversionDecl : public CXXMethodDecl { 2249 virtual void anchor(); 2250 /// IsExplicitSpecified - Whether this conversion function declaration is 2251 /// marked "explicit", meaning that it can only be applied when the user 2252 /// explicitly wrote a cast. This is a C++0x feature. 2253 bool IsExplicitSpecified : 1; 2254 2255 CXXConversionDecl(CXXRecordDecl *RD, SourceLocation StartLoc, 2256 const DeclarationNameInfo &NameInfo, 2257 QualType T, TypeSourceInfo *TInfo, 2258 bool isInline, bool isExplicitSpecified, 2259 bool isConstexpr, SourceLocation EndLocation) 2260 : CXXMethodDecl(CXXConversion, RD, StartLoc, NameInfo, T, TInfo, false, 2261 SC_None, isInline, isConstexpr, EndLocation), 2262 IsExplicitSpecified(isExplicitSpecified) { } 2263 2264public: 2265 static CXXConversionDecl *Create(ASTContext &C, CXXRecordDecl *RD, 2266 SourceLocation StartLoc, 2267 const DeclarationNameInfo &NameInfo, 2268 QualType T, TypeSourceInfo *TInfo, 2269 bool isInline, bool isExplicit, 2270 bool isConstexpr, 2271 SourceLocation EndLocation); 2272 static CXXConversionDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2273 2274 /// IsExplicitSpecified - Whether this conversion function declaration is 2275 /// marked "explicit", meaning that it can only be applied when the user 2276 /// explicitly wrote a cast. This is a C++0x feature. 2277 bool isExplicitSpecified() const { return IsExplicitSpecified; } 2278 2279 /// isExplicit - Whether this is an explicit conversion operator 2280 /// (C++0x only). Explicit conversion operators are only considered 2281 /// when the user has explicitly written a cast. 2282 bool isExplicit() const { 2283 return cast<CXXConversionDecl>(getFirstDeclaration()) 2284 ->isExplicitSpecified(); 2285 } 2286 2287 /// getConversionType - Returns the type that this conversion 2288 /// function is converting to. 2289 QualType getConversionType() const { 2290 return getType()->getAs<FunctionType>()->getResultType(); 2291 } 2292 2293 /// \brief Determine whether this conversion function is a conversion from 2294 /// a lambda closure type to a block pointer. 2295 bool isLambdaToBlockPointerConversion() const; 2296 2297 // Implement isa/cast/dyncast/etc. 2298 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2299 static bool classof(const CXXConversionDecl *D) { return true; } 2300 static bool classofKind(Kind K) { return K == CXXConversion; } 2301 2302 friend class ASTDeclReader; 2303 friend class ASTDeclWriter; 2304}; 2305 2306/// LinkageSpecDecl - This represents a linkage specification. For example: 2307/// extern "C" void foo(); 2308/// 2309class LinkageSpecDecl : public Decl, public DeclContext { 2310 virtual void anchor(); 2311public: 2312 /// LanguageIDs - Used to represent the language in a linkage 2313 /// specification. The values are part of the serialization abi for 2314 /// ASTs and cannot be changed without altering that abi. To help 2315 /// ensure a stable abi for this, we choose the DW_LANG_ encodings 2316 /// from the dwarf standard. 2317 enum LanguageIDs { 2318 lang_c = /* DW_LANG_C */ 0x0002, 2319 lang_cxx = /* DW_LANG_C_plus_plus */ 0x0004 2320 }; 2321private: 2322 /// Language - The language for this linkage specification. 2323 LanguageIDs Language; 2324 /// ExternLoc - The source location for the extern keyword. 2325 SourceLocation ExternLoc; 2326 /// RBraceLoc - The source location for the right brace (if valid). 2327 SourceLocation RBraceLoc; 2328 2329 LinkageSpecDecl(DeclContext *DC, SourceLocation ExternLoc, 2330 SourceLocation LangLoc, LanguageIDs lang, 2331 SourceLocation RBLoc) 2332 : Decl(LinkageSpec, DC, LangLoc), DeclContext(LinkageSpec), 2333 Language(lang), ExternLoc(ExternLoc), RBraceLoc(RBLoc) { } 2334 2335public: 2336 static LinkageSpecDecl *Create(ASTContext &C, DeclContext *DC, 2337 SourceLocation ExternLoc, 2338 SourceLocation LangLoc, LanguageIDs Lang, 2339 SourceLocation RBraceLoc = SourceLocation()); 2340 static LinkageSpecDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2341 2342 /// \brief Return the language specified by this linkage specification. 2343 LanguageIDs getLanguage() const { return Language; } 2344 /// \brief Set the language specified by this linkage specification. 2345 void setLanguage(LanguageIDs L) { Language = L; } 2346 2347 /// \brief Determines whether this linkage specification had braces in 2348 /// its syntactic form. 2349 bool hasBraces() const { return RBraceLoc.isValid(); } 2350 2351 SourceLocation getExternLoc() const { return ExternLoc; } 2352 SourceLocation getRBraceLoc() const { return RBraceLoc; } 2353 void setExternLoc(SourceLocation L) { ExternLoc = L; } 2354 void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } 2355 2356 SourceLocation getLocEnd() const LLVM_READONLY { 2357 if (hasBraces()) 2358 return getRBraceLoc(); 2359 // No braces: get the end location of the (only) declaration in context 2360 // (if present). 2361 return decls_empty() ? getLocation() : decls_begin()->getLocEnd(); 2362 } 2363 2364 SourceRange getSourceRange() const LLVM_READONLY { 2365 return SourceRange(ExternLoc, getLocEnd()); 2366 } 2367 2368 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2369 static bool classof(const LinkageSpecDecl *D) { return true; } 2370 static bool classofKind(Kind K) { return K == LinkageSpec; } 2371 static DeclContext *castToDeclContext(const LinkageSpecDecl *D) { 2372 return static_cast<DeclContext *>(const_cast<LinkageSpecDecl*>(D)); 2373 } 2374 static LinkageSpecDecl *castFromDeclContext(const DeclContext *DC) { 2375 return static_cast<LinkageSpecDecl *>(const_cast<DeclContext*>(DC)); 2376 } 2377}; 2378 2379/// UsingDirectiveDecl - Represents C++ using-directive. For example: 2380/// 2381/// using namespace std; 2382/// 2383// NB: UsingDirectiveDecl should be Decl not NamedDecl, but we provide 2384// artificial names for all using-directives in order to store 2385// them in DeclContext effectively. 2386class UsingDirectiveDecl : public NamedDecl { 2387 virtual void anchor(); 2388 /// \brief The location of the "using" keyword. 2389 SourceLocation UsingLoc; 2390 2391 /// SourceLocation - Location of 'namespace' token. 2392 SourceLocation NamespaceLoc; 2393 2394 /// \brief The nested-name-specifier that precedes the namespace. 2395 NestedNameSpecifierLoc QualifierLoc; 2396 2397 /// NominatedNamespace - Namespace nominated by using-directive. 2398 NamedDecl *NominatedNamespace; 2399 2400 /// Enclosing context containing both using-directive and nominated 2401 /// namespace. 2402 DeclContext *CommonAncestor; 2403 2404 /// getUsingDirectiveName - Returns special DeclarationName used by 2405 /// using-directives. This is only used by DeclContext for storing 2406 /// UsingDirectiveDecls in its lookup structure. 2407 static DeclarationName getName() { 2408 return DeclarationName::getUsingDirectiveName(); 2409 } 2410 2411 UsingDirectiveDecl(DeclContext *DC, SourceLocation UsingLoc, 2412 SourceLocation NamespcLoc, 2413 NestedNameSpecifierLoc QualifierLoc, 2414 SourceLocation IdentLoc, 2415 NamedDecl *Nominated, 2416 DeclContext *CommonAncestor) 2417 : NamedDecl(UsingDirective, DC, IdentLoc, getName()), UsingLoc(UsingLoc), 2418 NamespaceLoc(NamespcLoc), QualifierLoc(QualifierLoc), 2419 NominatedNamespace(Nominated), CommonAncestor(CommonAncestor) { } 2420 2421public: 2422 /// \brief Retrieve the nested-name-specifier that qualifies the 2423 /// name of the namespace, with source-location information. 2424 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2425 2426 /// \brief Retrieve the nested-name-specifier that qualifies the 2427 /// name of the namespace. 2428 NestedNameSpecifier *getQualifier() const { 2429 return QualifierLoc.getNestedNameSpecifier(); 2430 } 2431 2432 NamedDecl *getNominatedNamespaceAsWritten() { return NominatedNamespace; } 2433 const NamedDecl *getNominatedNamespaceAsWritten() const { 2434 return NominatedNamespace; 2435 } 2436 2437 /// getNominatedNamespace - Returns namespace nominated by using-directive. 2438 NamespaceDecl *getNominatedNamespace(); 2439 2440 const NamespaceDecl *getNominatedNamespace() const { 2441 return const_cast<UsingDirectiveDecl*>(this)->getNominatedNamespace(); 2442 } 2443 2444 /// \brief Returns the common ancestor context of this using-directive and 2445 /// its nominated namespace. 2446 DeclContext *getCommonAncestor() { return CommonAncestor; } 2447 const DeclContext *getCommonAncestor() const { return CommonAncestor; } 2448 2449 /// \brief Return the location of the "using" keyword. 2450 SourceLocation getUsingLoc() const { return UsingLoc; } 2451 2452 // FIXME: Could omit 'Key' in name. 2453 /// getNamespaceKeyLocation - Returns location of namespace keyword. 2454 SourceLocation getNamespaceKeyLocation() const { return NamespaceLoc; } 2455 2456 /// getIdentLocation - Returns location of identifier. 2457 SourceLocation getIdentLocation() const { return getLocation(); } 2458 2459 static UsingDirectiveDecl *Create(ASTContext &C, DeclContext *DC, 2460 SourceLocation UsingLoc, 2461 SourceLocation NamespaceLoc, 2462 NestedNameSpecifierLoc QualifierLoc, 2463 SourceLocation IdentLoc, 2464 NamedDecl *Nominated, 2465 DeclContext *CommonAncestor); 2466 static UsingDirectiveDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2467 2468 SourceRange getSourceRange() const LLVM_READONLY { 2469 return SourceRange(UsingLoc, getLocation()); 2470 } 2471 2472 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2473 static bool classof(const UsingDirectiveDecl *D) { return true; } 2474 static bool classofKind(Kind K) { return K == UsingDirective; } 2475 2476 // Friend for getUsingDirectiveName. 2477 friend class DeclContext; 2478 2479 friend class ASTDeclReader; 2480}; 2481 2482/// NamespaceAliasDecl - Represents a C++ namespace alias. For example: 2483/// 2484/// @code 2485/// namespace Foo = Bar; 2486/// @endcode 2487class NamespaceAliasDecl : public NamedDecl { 2488 virtual void anchor(); 2489 2490 /// \brief The location of the "namespace" keyword. 2491 SourceLocation NamespaceLoc; 2492 2493 /// IdentLoc - Location of namespace identifier. Accessed by TargetNameLoc. 2494 SourceLocation IdentLoc; 2495 2496 /// \brief The nested-name-specifier that precedes the namespace. 2497 NestedNameSpecifierLoc QualifierLoc; 2498 2499 /// Namespace - The Decl that this alias points to. Can either be a 2500 /// NamespaceDecl or a NamespaceAliasDecl. 2501 NamedDecl *Namespace; 2502 2503 NamespaceAliasDecl(DeclContext *DC, SourceLocation NamespaceLoc, 2504 SourceLocation AliasLoc, IdentifierInfo *Alias, 2505 NestedNameSpecifierLoc QualifierLoc, 2506 SourceLocation IdentLoc, NamedDecl *Namespace) 2507 : NamedDecl(NamespaceAlias, DC, AliasLoc, Alias), 2508 NamespaceLoc(NamespaceLoc), IdentLoc(IdentLoc), 2509 QualifierLoc(QualifierLoc), Namespace(Namespace) { } 2510 2511 friend class ASTDeclReader; 2512 2513public: 2514 /// \brief Retrieve the nested-name-specifier that qualifies the 2515 /// name of the namespace, with source-location information. 2516 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2517 2518 /// \brief Retrieve the nested-name-specifier that qualifies the 2519 /// name of the namespace. 2520 NestedNameSpecifier *getQualifier() const { 2521 return QualifierLoc.getNestedNameSpecifier(); 2522 } 2523 2524 /// \brief Retrieve the namespace declaration aliased by this directive. 2525 NamespaceDecl *getNamespace() { 2526 if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(Namespace)) 2527 return AD->getNamespace(); 2528 2529 return cast<NamespaceDecl>(Namespace); 2530 } 2531 2532 const NamespaceDecl *getNamespace() const { 2533 return const_cast<NamespaceAliasDecl*>(this)->getNamespace(); 2534 } 2535 2536 /// Returns the location of the alias name, i.e. 'foo' in 2537 /// "namespace foo = ns::bar;". 2538 SourceLocation getAliasLoc() const { return getLocation(); } 2539 2540 /// Returns the location of the 'namespace' keyword. 2541 SourceLocation getNamespaceLoc() const { return NamespaceLoc; } 2542 2543 /// Returns the location of the identifier in the named namespace. 2544 SourceLocation getTargetNameLoc() const { return IdentLoc; } 2545 2546 /// \brief Retrieve the namespace that this alias refers to, which 2547 /// may either be a NamespaceDecl or a NamespaceAliasDecl. 2548 NamedDecl *getAliasedNamespace() const { return Namespace; } 2549 2550 static NamespaceAliasDecl *Create(ASTContext &C, DeclContext *DC, 2551 SourceLocation NamespaceLoc, 2552 SourceLocation AliasLoc, 2553 IdentifierInfo *Alias, 2554 NestedNameSpecifierLoc QualifierLoc, 2555 SourceLocation IdentLoc, 2556 NamedDecl *Namespace); 2557 2558 static NamespaceAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2559 2560 virtual SourceRange getSourceRange() const LLVM_READONLY { 2561 return SourceRange(NamespaceLoc, IdentLoc); 2562 } 2563 2564 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2565 static bool classof(const NamespaceAliasDecl *D) { return true; } 2566 static bool classofKind(Kind K) { return K == NamespaceAlias; } 2567}; 2568 2569/// UsingShadowDecl - Represents a shadow declaration introduced into 2570/// a scope by a (resolved) using declaration. For example, 2571/// 2572/// namespace A { 2573/// void foo(); 2574/// } 2575/// namespace B { 2576/// using A::foo(); // <- a UsingDecl 2577/// // Also creates a UsingShadowDecl for A::foo in B 2578/// } 2579/// 2580class UsingShadowDecl : public NamedDecl { 2581 virtual void anchor(); 2582 2583 /// The referenced declaration. 2584 NamedDecl *Underlying; 2585 2586 /// \brief The using declaration which introduced this decl or the next using 2587 /// shadow declaration contained in the aforementioned using declaration. 2588 NamedDecl *UsingOrNextShadow; 2589 friend class UsingDecl; 2590 2591 UsingShadowDecl(DeclContext *DC, SourceLocation Loc, UsingDecl *Using, 2592 NamedDecl *Target) 2593 : NamedDecl(UsingShadow, DC, Loc, DeclarationName()), 2594 Underlying(Target), 2595 UsingOrNextShadow(reinterpret_cast<NamedDecl *>(Using)) { 2596 if (Target) { 2597 setDeclName(Target->getDeclName()); 2598 IdentifierNamespace = Target->getIdentifierNamespace(); 2599 } 2600 setImplicit(); 2601 } 2602 2603public: 2604 static UsingShadowDecl *Create(ASTContext &C, DeclContext *DC, 2605 SourceLocation Loc, UsingDecl *Using, 2606 NamedDecl *Target) { 2607 return new (C) UsingShadowDecl(DC, Loc, Using, Target); 2608 } 2609 2610 static UsingShadowDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2611 2612 /// \brief Gets the underlying declaration which has been brought into the 2613 /// local scope. 2614 NamedDecl *getTargetDecl() const { return Underlying; } 2615 2616 /// \brief Sets the underlying declaration which has been brought into the 2617 /// local scope. 2618 void setTargetDecl(NamedDecl* ND) { 2619 assert(ND && "Target decl is null!"); 2620 Underlying = ND; 2621 IdentifierNamespace = ND->getIdentifierNamespace(); 2622 } 2623 2624 /// \brief Gets the using declaration to which this declaration is tied. 2625 UsingDecl *getUsingDecl() const; 2626 2627 /// \brief The next using shadow declaration contained in the shadow decl 2628 /// chain of the using declaration which introduced this decl. 2629 UsingShadowDecl *getNextUsingShadowDecl() const { 2630 return dyn_cast_or_null<UsingShadowDecl>(UsingOrNextShadow); 2631 } 2632 2633 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2634 static bool classof(const UsingShadowDecl *D) { return true; } 2635 static bool classofKind(Kind K) { return K == Decl::UsingShadow; } 2636 2637 friend class ASTDeclReader; 2638 friend class ASTDeclWriter; 2639}; 2640 2641/// UsingDecl - Represents a C++ using-declaration. For example: 2642/// using someNameSpace::someIdentifier; 2643class UsingDecl : public NamedDecl { 2644 virtual void anchor(); 2645 2646 /// \brief The source location of the "using" location itself. 2647 SourceLocation UsingLocation; 2648 2649 /// \brief The nested-name-specifier that precedes the name. 2650 NestedNameSpecifierLoc QualifierLoc; 2651 2652 /// DNLoc - Provides source/type location info for the 2653 /// declaration name embedded in the ValueDecl base class. 2654 DeclarationNameLoc DNLoc; 2655 2656 /// \brief The first shadow declaration of the shadow decl chain associated 2657 /// with this using declaration. The bool member of the pair store whether 2658 /// this decl has the 'typename' keyword. 2659 llvm::PointerIntPair<UsingShadowDecl *, 1, bool> FirstUsingShadow; 2660 2661 UsingDecl(DeclContext *DC, SourceLocation UL, 2662 NestedNameSpecifierLoc QualifierLoc, 2663 const DeclarationNameInfo &NameInfo, bool IsTypeNameArg) 2664 : NamedDecl(Using, DC, NameInfo.getLoc(), NameInfo.getName()), 2665 UsingLocation(UL), QualifierLoc(QualifierLoc), 2666 DNLoc(NameInfo.getInfo()), FirstUsingShadow(0, IsTypeNameArg) { 2667 } 2668 2669public: 2670 /// \brief Returns the source location of the "using" keyword. 2671 SourceLocation getUsingLocation() const { return UsingLocation; } 2672 2673 /// \brief Set the source location of the 'using' keyword. 2674 void setUsingLocation(SourceLocation L) { UsingLocation = L; } 2675 2676 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2677 /// with source-location information. 2678 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2679 2680 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2681 NestedNameSpecifier *getQualifier() const { 2682 return QualifierLoc.getNestedNameSpecifier(); 2683 } 2684 2685 DeclarationNameInfo getNameInfo() const { 2686 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2687 } 2688 2689 /// \brief Return true if the using declaration has 'typename'. 2690 bool isTypeName() const { return FirstUsingShadow.getInt(); } 2691 2692 /// \brief Sets whether the using declaration has 'typename'. 2693 void setTypeName(bool TN) { FirstUsingShadow.setInt(TN); } 2694 2695 /// \brief Iterates through the using shadow declarations assosiated with 2696 /// this using declaration. 2697 class shadow_iterator { 2698 /// \brief The current using shadow declaration. 2699 UsingShadowDecl *Current; 2700 2701 public: 2702 typedef UsingShadowDecl* value_type; 2703 typedef UsingShadowDecl* reference; 2704 typedef UsingShadowDecl* pointer; 2705 typedef std::forward_iterator_tag iterator_category; 2706 typedef std::ptrdiff_t difference_type; 2707 2708 shadow_iterator() : Current(0) { } 2709 explicit shadow_iterator(UsingShadowDecl *C) : Current(C) { } 2710 2711 reference operator*() const { return Current; } 2712 pointer operator->() const { return Current; } 2713 2714 shadow_iterator& operator++() { 2715 Current = Current->getNextUsingShadowDecl(); 2716 return *this; 2717 } 2718 2719 shadow_iterator operator++(int) { 2720 shadow_iterator tmp(*this); 2721 ++(*this); 2722 return tmp; 2723 } 2724 2725 friend bool operator==(shadow_iterator x, shadow_iterator y) { 2726 return x.Current == y.Current; 2727 } 2728 friend bool operator!=(shadow_iterator x, shadow_iterator y) { 2729 return x.Current != y.Current; 2730 } 2731 }; 2732 2733 shadow_iterator shadow_begin() const { 2734 return shadow_iterator(FirstUsingShadow.getPointer()); 2735 } 2736 shadow_iterator shadow_end() const { return shadow_iterator(); } 2737 2738 /// \brief Return the number of shadowed declarations associated with this 2739 /// using declaration. 2740 unsigned shadow_size() const { 2741 return std::distance(shadow_begin(), shadow_end()); 2742 } 2743 2744 void addShadowDecl(UsingShadowDecl *S); 2745 void removeShadowDecl(UsingShadowDecl *S); 2746 2747 static UsingDecl *Create(ASTContext &C, DeclContext *DC, 2748 SourceLocation UsingL, 2749 NestedNameSpecifierLoc QualifierLoc, 2750 const DeclarationNameInfo &NameInfo, 2751 bool IsTypeNameArg); 2752 2753 static UsingDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2754 2755 SourceRange getSourceRange() const LLVM_READONLY { 2756 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2757 } 2758 2759 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2760 static bool classof(const UsingDecl *D) { return true; } 2761 static bool classofKind(Kind K) { return K == Using; } 2762 2763 friend class ASTDeclReader; 2764 friend class ASTDeclWriter; 2765}; 2766 2767/// UnresolvedUsingValueDecl - Represents a dependent using 2768/// declaration which was not marked with 'typename'. Unlike 2769/// non-dependent using declarations, these *only* bring through 2770/// non-types; otherwise they would break two-phase lookup. 2771/// 2772/// template <class T> class A : public Base<T> { 2773/// using Base<T>::foo; 2774/// }; 2775class UnresolvedUsingValueDecl : public ValueDecl { 2776 virtual void anchor(); 2777 2778 /// \brief The source location of the 'using' keyword 2779 SourceLocation UsingLocation; 2780 2781 /// \brief The nested-name-specifier that precedes the name. 2782 NestedNameSpecifierLoc QualifierLoc; 2783 2784 /// DNLoc - Provides source/type location info for the 2785 /// declaration name embedded in the ValueDecl base class. 2786 DeclarationNameLoc DNLoc; 2787 2788 UnresolvedUsingValueDecl(DeclContext *DC, QualType Ty, 2789 SourceLocation UsingLoc, 2790 NestedNameSpecifierLoc QualifierLoc, 2791 const DeclarationNameInfo &NameInfo) 2792 : ValueDecl(UnresolvedUsingValue, DC, 2793 NameInfo.getLoc(), NameInfo.getName(), Ty), 2794 UsingLocation(UsingLoc), QualifierLoc(QualifierLoc), 2795 DNLoc(NameInfo.getInfo()) 2796 { } 2797 2798public: 2799 /// \brief Returns the source location of the 'using' keyword. 2800 SourceLocation getUsingLoc() const { return UsingLocation; } 2801 2802 /// \brief Set the source location of the 'using' keyword. 2803 void setUsingLoc(SourceLocation L) { UsingLocation = L; } 2804 2805 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2806 /// with source-location information. 2807 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2808 2809 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2810 NestedNameSpecifier *getQualifier() const { 2811 return QualifierLoc.getNestedNameSpecifier(); 2812 } 2813 2814 DeclarationNameInfo getNameInfo() const { 2815 return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); 2816 } 2817 2818 static UnresolvedUsingValueDecl * 2819 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2820 NestedNameSpecifierLoc QualifierLoc, 2821 const DeclarationNameInfo &NameInfo); 2822 2823 static UnresolvedUsingValueDecl * 2824 CreateDeserialized(ASTContext &C, unsigned ID); 2825 2826 SourceRange getSourceRange() const LLVM_READONLY { 2827 return SourceRange(UsingLocation, getNameInfo().getEndLoc()); 2828 } 2829 2830 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2831 static bool classof(const UnresolvedUsingValueDecl *D) { return true; } 2832 static bool classofKind(Kind K) { return K == UnresolvedUsingValue; } 2833 2834 friend class ASTDeclReader; 2835 friend class ASTDeclWriter; 2836}; 2837 2838/// UnresolvedUsingTypenameDecl - Represents a dependent using 2839/// declaration which was marked with 'typename'. 2840/// 2841/// template <class T> class A : public Base<T> { 2842/// using typename Base<T>::foo; 2843/// }; 2844/// 2845/// The type associated with a unresolved using typename decl is 2846/// currently always a typename type. 2847class UnresolvedUsingTypenameDecl : public TypeDecl { 2848 virtual void anchor(); 2849 2850 /// \brief The source location of the 'using' keyword 2851 SourceLocation UsingLocation; 2852 2853 /// \brief The source location of the 'typename' keyword 2854 SourceLocation TypenameLocation; 2855 2856 /// \brief The nested-name-specifier that precedes the name. 2857 NestedNameSpecifierLoc QualifierLoc; 2858 2859 UnresolvedUsingTypenameDecl(DeclContext *DC, SourceLocation UsingLoc, 2860 SourceLocation TypenameLoc, 2861 NestedNameSpecifierLoc QualifierLoc, 2862 SourceLocation TargetNameLoc, 2863 IdentifierInfo *TargetName) 2864 : TypeDecl(UnresolvedUsingTypename, DC, TargetNameLoc, TargetName, 2865 UsingLoc), 2866 TypenameLocation(TypenameLoc), QualifierLoc(QualifierLoc) { } 2867 2868 friend class ASTDeclReader; 2869 2870public: 2871 /// \brief Returns the source location of the 'using' keyword. 2872 SourceLocation getUsingLoc() const { return getLocStart(); } 2873 2874 /// \brief Returns the source location of the 'typename' keyword. 2875 SourceLocation getTypenameLoc() const { return TypenameLocation; } 2876 2877 /// \brief Retrieve the nested-name-specifier that qualifies the name, 2878 /// with source-location information. 2879 NestedNameSpecifierLoc getQualifierLoc() const { return QualifierLoc; } 2880 2881 /// \brief Retrieve the nested-name-specifier that qualifies the name. 2882 NestedNameSpecifier *getQualifier() const { 2883 return QualifierLoc.getNestedNameSpecifier(); 2884 } 2885 2886 static UnresolvedUsingTypenameDecl * 2887 Create(ASTContext &C, DeclContext *DC, SourceLocation UsingLoc, 2888 SourceLocation TypenameLoc, NestedNameSpecifierLoc QualifierLoc, 2889 SourceLocation TargetNameLoc, DeclarationName TargetName); 2890 2891 static UnresolvedUsingTypenameDecl * 2892 CreateDeserialized(ASTContext &C, unsigned ID); 2893 2894 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2895 static bool classof(const UnresolvedUsingTypenameDecl *D) { return true; } 2896 static bool classofKind(Kind K) { return K == UnresolvedUsingTypename; } 2897}; 2898 2899/// StaticAssertDecl - Represents a C++0x static_assert declaration. 2900class StaticAssertDecl : public Decl { 2901 virtual void anchor(); 2902 Expr *AssertExpr; 2903 StringLiteral *Message; 2904 SourceLocation RParenLoc; 2905 2906 StaticAssertDecl(DeclContext *DC, SourceLocation StaticAssertLoc, 2907 Expr *assertexpr, StringLiteral *message, 2908 SourceLocation RParenLoc) 2909 : Decl(StaticAssert, DC, StaticAssertLoc), AssertExpr(assertexpr), 2910 Message(message), RParenLoc(RParenLoc) { } 2911 2912public: 2913 static StaticAssertDecl *Create(ASTContext &C, DeclContext *DC, 2914 SourceLocation StaticAssertLoc, 2915 Expr *AssertExpr, StringLiteral *Message, 2916 SourceLocation RParenLoc); 2917 static StaticAssertDecl *CreateDeserialized(ASTContext &C, unsigned ID); 2918 2919 Expr *getAssertExpr() { return AssertExpr; } 2920 const Expr *getAssertExpr() const { return AssertExpr; } 2921 2922 StringLiteral *getMessage() { return Message; } 2923 const StringLiteral *getMessage() const { return Message; } 2924 2925 SourceLocation getRParenLoc() const { return RParenLoc; } 2926 void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2927 2928 SourceRange getSourceRange() const LLVM_READONLY { 2929 return SourceRange(getLocation(), getRParenLoc()); 2930 } 2931 2932 static bool classof(const Decl *D) { return classofKind(D->getKind()); } 2933 static bool classof(StaticAssertDecl *D) { return true; } 2934 static bool classofKind(Kind K) { return K == StaticAssert; } 2935 2936 friend class ASTDeclReader; 2937}; 2938 2939/// Insertion operator for diagnostics. This allows sending AccessSpecifier's 2940/// into a diagnostic with <<. 2941const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 2942 AccessSpecifier AS); 2943 2944const PartialDiagnostic &operator<<(const PartialDiagnostic &DB, 2945 AccessSpecifier AS); 2946 2947} // end namespace clang 2948 2949#endif 2950