Type.h revision 146060435c3efce95c95a092c7a1eb651cfb9ae0
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Type.h - C Language Family Type Representation ---------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Type interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_TYPE_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_TYPE_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1722caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner#include "clang/Basic/Diagnostic.h" 188b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl#include "clang/Basic/ExceptionSpecificationType.h" 191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor#include "clang/Basic/IdentifierTable.h" 200b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor#include "clang/Basic/Linkage.h" 2147c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth#include "clang/Basic/PartialDiagnostic.h" 221fb0caaa7bef765b85972274e3b434af2572c141John McCall#include "clang/Basic/Visibility.h" 23e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor#include "clang/AST/NestedNameSpecifier.h" 247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor#include "clang/AST/TemplateName.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/Support/Casting.h" 2650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor#include "llvm/Support/type_traits.h" 27fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff#include "llvm/ADT/APSInt.h" 285cf243a883872441d73ca49cea7e20de5802629bChris Lattner#include "llvm/ADT/FoldingSet.h" 29cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor#include "llvm/ADT/Optional.h" 305cf243a883872441d73ca49cea7e20de5802629bChris Lattner#include "llvm/ADT/PointerIntPair.h" 311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor#include "llvm/ADT/PointerUnion.h" 327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing llvm::isa; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing llvm::cast; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing llvm::cast_or_null; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing llvm::dyn_cast; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing llvm::dyn_cast_or_null; 386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCallnamespace clang { 396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall enum { 40f7616b9067790757f4e12e834b216c53c8c04ebeDouglas Gregor TypeAlignmentInBits = 4, 416b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment = 1 << TypeAlignmentInBits 426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall }; 43aed1df80bf64228e1429c1edc408397f9174847cChris Lattner class Type; 44aed1df80bf64228e1429c1edc408397f9174847cChris Lattner class ExtQuals; 45aed1df80bf64228e1429c1edc408397f9174847cChris Lattner class QualType; 466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall} 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 484e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattnernamespace llvm { 494e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner template <typename T> 50daae940507f2e93c6fa12e8062fa958e34cc2d1cChris Lattner class PointerLikeTypeTraits; 51bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner template<> 52bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner class PointerLikeTypeTraits< ::clang::Type*> { 53bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner public: 54bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner static inline void *getAsVoidPointer(::clang::Type *P) { return P; } 55bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner static inline ::clang::Type *getFromVoidPointer(void *P) { 56bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner return static_cast< ::clang::Type*>(P); 57bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner } 586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall enum { NumLowBitsAvailable = clang::TypeAlignmentInBits }; 59bfadf55ba5b736b13cc3e0fbc2b184569bc9f304Chris Lattner }; 600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall template<> 610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall class PointerLikeTypeTraits< ::clang::ExtQuals*> { 620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall public: 630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static inline void *getAsVoidPointer(::clang::ExtQuals *P) { return P; } 640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static inline ::clang::ExtQuals *getFromVoidPointer(void *P) { 650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return static_cast< ::clang::ExtQuals*>(P); 660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall enum { NumLowBitsAvailable = clang::TypeAlignmentInBits }; 680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall }; 69aed1df80bf64228e1429c1edc408397f9174847cChris Lattner 70aed1df80bf64228e1429c1edc408397f9174847cChris Lattner template <> 71aed1df80bf64228e1429c1edc408397f9174847cChris Lattner struct isPodLike<clang::QualType> { static const bool value = true; }; 724e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner} 734e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 76162e1c1b487352434552147967c3dd296ebee2f7Richard Smith class TypedefNameDecl; 7755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor class TemplateDecl; 7872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor class TemplateTypeParmDecl; 79aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor class NonTypeTemplateParmDecl; 807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor class TemplateTemplateParmDecl; 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TagDecl; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class RecordDecl; 8349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis class CXXRecordDecl; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class EnumDecl; 8521d50e12c3c412d8457071dc419363b7a7e8b855Ted Kremenek class FieldDecl; 86a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek class ObjCInterfaceDecl; 87a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek class ObjCProtocolDecl; 88a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek class ObjCMethodDecl; 89ed97649e9574b9d854fa4d6109c9333ae0993554John McCall class UnresolvedUsingTypenameDecl; 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Expr; 91b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek class Stmt; 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class SourceLocation; 9392866e2e90f6d93fb95e25a7ac4438e239d89ce6Ted Kremenek class StmtIteratorBase; 9440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor class TemplateArgument; 95833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 96d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 97465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara class ElaboratedType; 983b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall class ExtQuals; 993b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall class ExtQualsTypeCommonBase; 1003b4ea54acf01f72f6eb74d96689dda86d950228fDaniel Dunbar struct PrintingPolicy; 10172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 102ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall template <typename> class CanQual; 103ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall typedef CanQual<Type> CanQualType; 104ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall 10572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // Provide forward declarations for all of the *Type classes 10672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) class Class##Type; 10772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 108f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// Qualifiers - The collection of all-type qualifiers we support. 1100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// Clang supports five independent qualifiers: 1110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// * C99: const, volatile, and restrict 1120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// * Embedded C (TR18037): address spaces 1130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// * Objective C: the GC attributes (none, weak, or strong) 1140953e767ff7817f97b3ab20896b229891eeff45bJohn McCallclass Qualifiers { 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall enum TQ { // NOTE: These flags must be kept in sync with DeclSpec::TQ. 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Const = 0x1, 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Restrict = 0x2, 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Volatile = 0x4, 1200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CVRMask = Const | Volatile | Restrict 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall enum GC { 124d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian GCNone = 0, 125d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Weak, 126d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Strong 127d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian }; 128efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 129f85e193739c953358c865005855253af4f68a497John McCall enum ObjCLifetime { 130f85e193739c953358c865005855253af4f68a497John McCall /// There is no lifetime qualification on this type. 131f85e193739c953358c865005855253af4f68a497John McCall OCL_None, 132f85e193739c953358c865005855253af4f68a497John McCall 133f85e193739c953358c865005855253af4f68a497John McCall /// This object can be modified without requiring retains or 134f85e193739c953358c865005855253af4f68a497John McCall /// releases. 135f85e193739c953358c865005855253af4f68a497John McCall OCL_ExplicitNone, 136f85e193739c953358c865005855253af4f68a497John McCall 137f85e193739c953358c865005855253af4f68a497John McCall /// Assigning into this object requires the old value to be 138f85e193739c953358c865005855253af4f68a497John McCall /// released and the new value to be retained. The timing of the 139f85e193739c953358c865005855253af4f68a497John McCall /// release of the old value is inexact: it may be moved to 140f85e193739c953358c865005855253af4f68a497John McCall /// immediately after the last known point where the value is 141f85e193739c953358c865005855253af4f68a497John McCall /// live. 142f85e193739c953358c865005855253af4f68a497John McCall OCL_Strong, 143f85e193739c953358c865005855253af4f68a497John McCall 144f85e193739c953358c865005855253af4f68a497John McCall /// Reading or writing from this object requires a barrier call. 145f85e193739c953358c865005855253af4f68a497John McCall OCL_Weak, 146f85e193739c953358c865005855253af4f68a497John McCall 147f85e193739c953358c865005855253af4f68a497John McCall /// Assigning into this object requires a lifetime extension. 148f85e193739c953358c865005855253af4f68a497John McCall OCL_Autoreleasing 149f85e193739c953358c865005855253af4f68a497John McCall }; 150f85e193739c953358c865005855253af4f68a497John McCall 1510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall enum { 1520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// The maximum supported address space number. 1530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// 24 bits should be enough for anyone. 1540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall MaxAddressSpace = 0xffffffu, 1550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// The width of the "fast" qualifier mask. 157f7616b9067790757f4e12e834b216c53c8c04ebeDouglas Gregor FastWidth = 3, 1580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// The fast qualifier mask. 1600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FastMask = (1 << FastWidth) - 1 1610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall }; 1620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers() : Mask(0) {} 1640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static Qualifiers fromFastMask(unsigned Mask) { 1660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Qs; 1670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qs.addFastQualifiers(Mask); 1680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs; 1690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 1700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static Qualifiers fromCVRMask(unsigned CVR) { 1720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Qs; 1730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qs.addCVRQualifiers(CVR); 1740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs; 1750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 1760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Deserialize qualifiers from an opaque representation. 1780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static Qualifiers fromOpaqueValue(unsigned opaque) { 1790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Qs; 1800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qs.Mask = opaque; 1810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs; 1820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 1830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Serialize these qualifiers into an opaque representation. 1850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned getAsOpaqueValue() const { 1860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Mask; 1870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 1880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasConst() const { return Mask & Const; } 1900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setConst(bool flag) { 1910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~Const) | (flag ? Const : 0); 1920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 1930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeConst() { Mask &= ~Const; } 1940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addConst() { Mask |= Const; } 1950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasVolatile() const { return Mask & Volatile; } 1970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setVolatile(bool flag) { 1980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~Volatile) | (flag ? Volatile : 0); 1990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeVolatile() { Mask &= ~Volatile; } 2010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addVolatile() { Mask |= Volatile; } 2020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasRestrict() const { return Mask & Restrict; } 2040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setRestrict(bool flag) { 2050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~Restrict) | (flag ? Restrict : 0); 2060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeRestrict() { Mask &= ~Restrict; } 2080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addRestrict() { Mask |= Restrict; } 2090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasCVRQualifiers() const { return getCVRQualifiers(); } 2110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned getCVRQualifiers() const { return Mask & CVRMask; } 2120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setCVRQualifiers(unsigned mask) { 2130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); 2140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~CVRMask) | mask; 2150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeCVRQualifiers(unsigned mask) { 2170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); 2180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask &= ~mask; 2190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeCVRQualifiers() { 2210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall removeCVRQualifiers(CVRMask); 2220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addCVRQualifiers(unsigned mask) { 2240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); 2250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask |= mask; 2260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasObjCGCAttr() const { return Mask & GCAttrMask; } 2290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GC getObjCGCAttr() const { return GC((Mask & GCAttrMask) >> GCAttrShift); } 2300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setObjCGCAttr(GC type) { 2310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~GCAttrMask) | (type << GCAttrShift); 2320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeObjCGCAttr() { setObjCGCAttr(GCNone); } 2340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addObjCGCAttr(GC type) { 2350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(type); 2360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall setObjCGCAttr(type); 2370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2382234873111009eb8655d63362cedc422eb9fc517John McCall Qualifiers withoutObjCGCAttr() const { 2392234873111009eb8655d63362cedc422eb9fc517John McCall Qualifiers qs = *this; 2402234873111009eb8655d63362cedc422eb9fc517John McCall qs.removeObjCGCAttr(); 2412234873111009eb8655d63362cedc422eb9fc517John McCall return qs; 2422234873111009eb8655d63362cedc422eb9fc517John McCall } 243f85e193739c953358c865005855253af4f68a497John McCall Qualifiers withoutObjCGLifetime() const { 244f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs = *this; 245f85e193739c953358c865005855253af4f68a497John McCall qs.removeObjCLifetime(); 246f85e193739c953358c865005855253af4f68a497John McCall return qs; 247f85e193739c953358c865005855253af4f68a497John McCall } 2480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 249f85e193739c953358c865005855253af4f68a497John McCall bool hasObjCLifetime() const { return Mask & LifetimeMask; } 250f85e193739c953358c865005855253af4f68a497John McCall ObjCLifetime getObjCLifetime() const { 251f85e193739c953358c865005855253af4f68a497John McCall return ObjCLifetime((Mask & LifetimeMask) >> LifetimeShift); 252f85e193739c953358c865005855253af4f68a497John McCall } 253f85e193739c953358c865005855253af4f68a497John McCall void setObjCLifetime(ObjCLifetime type) { 254f85e193739c953358c865005855253af4f68a497John McCall Mask = (Mask & ~LifetimeMask) | (type << LifetimeShift); 255f85e193739c953358c865005855253af4f68a497John McCall } 256f85e193739c953358c865005855253af4f68a497John McCall void removeObjCLifetime() { setObjCLifetime(OCL_None); } 257f85e193739c953358c865005855253af4f68a497John McCall void addObjCLifetime(ObjCLifetime type) { 258f85e193739c953358c865005855253af4f68a497John McCall assert(type); 259f85e193739c953358c865005855253af4f68a497John McCall setObjCLifetime(type); 260f85e193739c953358c865005855253af4f68a497John McCall } 261f85e193739c953358c865005855253af4f68a497John McCall 262f85e193739c953358c865005855253af4f68a497John McCall /// True if the lifetime is neither None or ExplicitNone. 263f85e193739c953358c865005855253af4f68a497John McCall bool hasNonTrivialObjCLifetime() const { 264f85e193739c953358c865005855253af4f68a497John McCall ObjCLifetime lifetime = getObjCLifetime(); 265f85e193739c953358c865005855253af4f68a497John McCall return (lifetime > OCL_ExplicitNone); 266f85e193739c953358c865005855253af4f68a497John McCall } 267f85e193739c953358c865005855253af4f68a497John McCall 268f85e193739c953358c865005855253af4f68a497John McCall /// True if the lifetime is either strong or weak. 269f85e193739c953358c865005855253af4f68a497John McCall bool hasStrongOrWeakObjCLifetime() const { 270f85e193739c953358c865005855253af4f68a497John McCall ObjCLifetime lifetime = getObjCLifetime(); 271f85e193739c953358c865005855253af4f68a497John McCall return (lifetime == OCL_Strong || lifetime == OCL_Weak); 272f85e193739c953358c865005855253af4f68a497John McCall } 273f85e193739c953358c865005855253af4f68a497John McCall 2740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasAddressSpace() const { return Mask & AddressSpaceMask; } 2750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned getAddressSpace() const { return Mask >> AddressSpaceShift; } 2760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setAddressSpace(unsigned space) { 2770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(space <= MaxAddressSpace); 2780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~AddressSpaceMask) 2790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall | (((uint32_t) space) << AddressSpaceShift); 2800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeAddressSpace() { setAddressSpace(0); } 2820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addAddressSpace(unsigned space) { 2830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(space); 2840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall setAddressSpace(space); 2850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Fast qualifiers are those that can be allocated directly 2880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // on a QualType object. 2890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasFastQualifiers() const { return getFastQualifiers(); } 2900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned getFastQualifiers() const { return Mask & FastMask; } 2910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void setFastQualifiers(unsigned mask) { 2920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); 2930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask = (Mask & ~FastMask) | mask; 2940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeFastQualifiers(unsigned mask) { 2960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); 2970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask &= ~mask; 2980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 2990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void removeFastQualifiers() { 3000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall removeFastQualifiers(FastMask); 3010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addFastQualifiers(unsigned mask) { 3030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); 3040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask |= mask; 3050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// hasNonFastQualifiers - Return true if the set contains any 3080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// qualifiers which require an ExtQuals node to be allocated. 3090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasNonFastQualifiers() const { return Mask & ~FastMask; } 3100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers getNonFastQualifiers() const { 3110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = *this; 3120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.setFastQualifiers(0); 3130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Quals; 3140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// hasQualifiers - Return true if the set contains any qualifiers. 3170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool hasQualifiers() const { return Mask; } 3180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool empty() const { return !Mask; } 3190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// \brief Add the qualifiers from the given set to this set. 3210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addQualifiers(Qualifiers Q) { 3220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the other set doesn't have any non-boolean qualifiers, just 3230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // bit-or it in. 3240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!(Q.Mask & ~CVRMask)) 3250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask |= Q.Mask; 3260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 3270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Mask |= (Q.Mask & CVRMask); 3280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Q.hasAddressSpace()) 3290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall addAddressSpace(Q.getAddressSpace()); 3300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Q.hasObjCGCAttr()) 3310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall addObjCGCAttr(Q.getObjCGCAttr()); 332f85e193739c953358c865005855253af4f68a497John McCall if (Q.hasObjCLifetime()) 333f85e193739c953358c865005855253af4f68a497John McCall addObjCLifetime(Q.getObjCLifetime()); 3340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 33762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// \brief Add the qualifiers from the given set to this set, given that 33862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// they don't conflict. 33962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall void addConsistentQualifiers(Qualifiers qs) { 34062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall assert(getAddressSpace() == qs.getAddressSpace() || 34162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall !hasAddressSpace() || !qs.hasAddressSpace()); 34262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall assert(getObjCGCAttr() == qs.getObjCGCAttr() || 34362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall !hasObjCGCAttr() || !qs.hasObjCGCAttr()); 344f85e193739c953358c865005855253af4f68a497John McCall assert(getObjCLifetime() == qs.getObjCLifetime() || 345f85e193739c953358c865005855253af4f68a497John McCall !hasObjCLifetime() || !qs.hasObjCLifetime()); 34662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall Mask |= qs.Mask; 34762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall } 34862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 34962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// \brief Determines if these qualifiers compatibly include another set. 35062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// Generally this answers the question of whether an object with the other 35162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// qualifiers can be safely used as an object with these qualifiers. 35262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall bool compatiblyIncludes(Qualifiers other) const { 353377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor return 354377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor // Address spaces must match exactly. 355377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor getAddressSpace() == other.getAddressSpace() && 356377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor // ObjC GC qualifiers can match, be added, or be removed, but can't be 357377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor // changed. 358377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor (getObjCGCAttr() == other.getObjCGCAttr() || 359377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor !hasObjCGCAttr() || !other.hasObjCGCAttr()) && 360f85e193739c953358c865005855253af4f68a497John McCall // ObjC lifetime qualifiers must match exactly. 361f85e193739c953358c865005855253af4f68a497John McCall getObjCLifetime() == other.getObjCLifetime() && 362377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor // CVR qualifiers may subset. 363377e1bd6853118c5b1718503569e5179c40f09b7Douglas Gregor (((Mask & CVRMask) | (other.Mask & CVRMask)) == (Mask & CVRMask)); 36462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall } 36562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 366f85e193739c953358c865005855253af4f68a497John McCall /// \brief Determines if these qualifiers compatibly include another set of 367f85e193739c953358c865005855253af4f68a497John McCall /// qualifiers from the narrow perspective of Objective-C ARC lifetime. 368f85e193739c953358c865005855253af4f68a497John McCall /// 369f85e193739c953358c865005855253af4f68a497John McCall /// One set of Objective-C lifetime qualifiers compatibly includes the other 370f85e193739c953358c865005855253af4f68a497John McCall /// if the lifetime qualifiers match, or if both are non-__weak and the 371f85e193739c953358c865005855253af4f68a497John McCall /// including set also contains the 'const' qualifier. 372f85e193739c953358c865005855253af4f68a497John McCall bool compatiblyIncludesObjCLifetime(Qualifiers other) const { 373f85e193739c953358c865005855253af4f68a497John McCall if (getObjCLifetime() == other.getObjCLifetime()) 374f85e193739c953358c865005855253af4f68a497John McCall return true; 375f85e193739c953358c865005855253af4f68a497John McCall 376f85e193739c953358c865005855253af4f68a497John McCall if (getObjCLifetime() == OCL_Weak || other.getObjCLifetime() == OCL_Weak) 377f85e193739c953358c865005855253af4f68a497John McCall return false; 378f85e193739c953358c865005855253af4f68a497John McCall 379f85e193739c953358c865005855253af4f68a497John McCall return hasConst(); 380f85e193739c953358c865005855253af4f68a497John McCall } 381f85e193739c953358c865005855253af4f68a497John McCall 382f85e193739c953358c865005855253af4f68a497John McCall bool isSupersetOf(Qualifiers Other) const; 383f85e193739c953358c865005855253af4f68a497John McCall 384769d0cc72b1831785596d0e76f327bdb887823beDouglas Gregor /// \brief Determine whether this set of qualifiers is a strict superset of 385769d0cc72b1831785596d0e76f327bdb887823beDouglas Gregor /// another set of qualifiers, not considering qualifier compatibility. 386769d0cc72b1831785596d0e76f327bdb887823beDouglas Gregor bool isStrictSupersetOf(Qualifiers Other) const; 387769d0cc72b1831785596d0e76f327bdb887823beDouglas Gregor 3880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool operator==(Qualifiers Other) const { return Mask == Other.Mask; } 3890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall bool operator!=(Qualifiers Other) const { return Mask != Other.Mask; } 3900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall operator bool() const { return hasQualifiers(); } 3920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers &operator+=(Qualifiers R) { 3940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall addQualifiers(R); 3950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return *this; 3960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 3970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Union two qualifier sets. If an enumerated qualifier appears 3990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // in both sets, use the one from the right. 4000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall friend Qualifiers operator+(Qualifiers L, Qualifiers R) { 4010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall L += R; 4020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return L; 4030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 4043cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor 4053cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor Qualifiers &operator-=(Qualifiers R) { 4063cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor Mask = Mask & ~(R.Mask); 4073cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor return *this; 4083cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor } 4090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4103cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor /// \brief Compute the difference between two qualifier sets. 4113cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor friend Qualifiers operator-(Qualifiers L, Qualifiers R) { 4123cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor L -= R; 4133cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor return L; 4143cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor } 4153cdee121daa13403335094ce0e181b9911c2124cDouglas Gregor 4160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall std::string getAsString() const; 4170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall std::string getAsString(const PrintingPolicy &Policy) const { 4180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall std::string Buffer; 4190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getAsStringInternal(Buffer, Policy); 4200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Buffer; 4210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 4220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void getAsStringInternal(std::string &S, const PrintingPolicy &Policy) const; 4230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void Profile(llvm::FoldingSetNodeID &ID) const { 4250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ID.AddInteger(Mask); 4260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 4270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4280953e767ff7817f97b3ab20896b229891eeff45bJohn McCallprivate: 4290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 430f85e193739c953358c865005855253af4f68a497John McCall // bits: |0 1 2|3 .. 4|5 .. 7|8 ... 31| 431f85e193739c953358c865005855253af4f68a497John McCall // |C R V|GCAttr|Lifetime|AddressSpace| 4320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall uint32_t Mask; 4330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static const uint32_t GCAttrMask = 0x18; 4350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall static const uint32_t GCAttrShift = 3; 436f85e193739c953358c865005855253af4f68a497John McCall static const uint32_t LifetimeMask = 0xE0; 437f85e193739c953358c865005855253af4f68a497John McCall static const uint32_t LifetimeShift = 5; 438f85e193739c953358c865005855253af4f68a497John McCall static const uint32_t AddressSpaceMask = ~(CVRMask|GCAttrMask|LifetimeMask); 439f85e193739c953358c865005855253af4f68a497John McCall static const uint32_t AddressSpaceShift = 8; 4400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall}; 4410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 442ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor/// CallingConv - Specifies the calling convention that a function uses. 443ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorenum CallingConv { 444ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CC_Default, 445ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CC_C, // __attribute__((cdecl)) 446ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CC_X86StdCall, // __attribute__((stdcall)) 447f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor CC_X86FastCall, // __attribute__((fastcall)) 44852fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik CC_X86ThisCall, // __attribute__((thiscall)) 449414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC_X86Pascal, // __attribute__((pascal)) 450414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC_AAPCS, // __attribute__((pcs("aapcs"))) 451414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC_AAPCS_VFP // __attribute__((pcs("aapcs-vfp"))) 452ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor}; 453ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 45449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCalltypedef std::pair<const Type*, Qualifiers> SplitQualType; 4550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// QualType - For efficiency, we don't store CV-qualified types as nodes on 4570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// their own: instead each reference to a type stores the qualifiers. This 4580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// greatly reduces the number of nodes we need to allocate for types (for 4590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// example we only need one for 'int', 'const int', 'volatile int', 4600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 'const volatile int', etc). 4610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 4620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// As an added efficiency bonus, instead of making this a pair, we 4630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// just store the two bits we care about in the low bits of the 4640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// pointer. To handle the packing/unpacking, we make QualType be a 4650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// simple wrapper class that acts like a smart pointer. A third bit 4660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// indicates whether there are extended qualifiers present, in which 4670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// case the pointer points to a special structure. 4680953e767ff7817f97b3ab20896b229891eeff45bJohn McCallclass QualType { 4690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Thankfully, these are efficiently composable. 4700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::PointerIntPair<llvm::PointerUnion<const Type*,const ExtQuals*>, 4710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::FastWidth> Value; 4720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const ExtQuals *getExtQualsUnsafe() const { 4740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Value.getPointer().get<const ExtQuals*>(); 4750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 4760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *getTypePtrUnsafe() const { 4780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Value.getPointer().get<const Type*>(); 4790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 4800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4813b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ExtQualsTypeCommonBase *getCommonPtr() const { 4823b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(!isNull() && "Cannot retrieve a NULL type pointer"); 4833b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall uintptr_t CommonPtrVal 4843b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall = reinterpret_cast<uintptr_t>(Value.getOpaqueValue()); 4853b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall CommonPtrVal &= ~(uintptr_t)((1 << TypeAlignmentInBits) - 1); 4863b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return reinterpret_cast<ExtQualsTypeCommonBase*>(CommonPtrVal); 4873b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 4883b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 4890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall friend class QualifierCollector; 4900953e767ff7817f97b3ab20896b229891eeff45bJohn McCallpublic: 4915cf243a883872441d73ca49cea7e20de5802629bChris Lattner QualType() {} 4921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4935cf243a883872441d73ca49cea7e20de5802629bChris Lattner QualType(const Type *Ptr, unsigned Quals) 4940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall : Value(Ptr, Quals) {} 4950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType(const ExtQuals *Ptr, unsigned Quals) 4960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall : Value(Ptr, Quals) {} 4970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 498a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor unsigned getLocalFastQualifiers() const { return Value.getInt(); } 499a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor void setLocalFastQualifiers(unsigned Quals) { Value.setInt(Quals); } 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Retrieves a pointer to the underlying (unqualified) type. 5020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// This should really return a const Type, but it's not worth 5030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// changing all the users right now. 5041ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregor /// 5051ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregor /// This function requires that the type not be NULL. If the type might be 5061ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregor /// NULL, use the (slightly less efficient) \c getTypePtrOrNull(). 5073b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *getTypePtr() const; 5081ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregor 5093b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *getTypePtrOrNull() const; 5101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51149f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall /// Divides a QualType into its unqualified type and a set of local 51249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall /// qualifiers. 5133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall SplitQualType split() const; 51449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall 5155cf243a883872441d73ca49cea7e20de5802629bChris Lattner void *getAsOpaquePtr() const { return Value.getOpaqueValue(); } 516f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall static QualType getFromOpaquePtr(const void *Ptr) { 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType T; 518f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall T.Value.setFromOpaqueValue(const_cast<void*>(Ptr)); 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T; 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 522f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall const Type &operator*() const { 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return *getTypePtr(); 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 526f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall const Type *operator->() const { 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getTypePtr(); 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 530467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall bool isCanonical() const; 53154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonicalAsParam() const; 532467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isNull - Return true if this QualType doesn't point to a type yet. 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isNull() const { 5350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Value.getPointer().isNull(); 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 538a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this particular QualType instance has the 539a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// "const" qualifier set, without looking through typedefs that may have 540a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// added "const" at a different level. 541a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor bool isLocalConstQualified() const { 542a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return (getLocalFastQualifiers() & Qualifiers::Const); 5430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 544a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 545a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this type is const-qualified. 546fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor bool isConstQualified() const; 547a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 548a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this particular QualType instance has the 549a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// "restrict" qualifier set, without looking through typedefs that may have 550a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// added "restrict" at a different level. 551a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor bool isLocalRestrictQualified() const { 552a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return (getLocalFastQualifiers() & Qualifiers::Restrict); 553a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor } 554a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 555a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this type is restrict-qualified. 556fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor bool isRestrictQualified() const; 557a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 558a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this particular QualType instance has the 559a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// "volatile" qualifier set, without looking through typedefs that may have 560a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// added "volatile" at a different level. 561a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor bool isLocalVolatileQualified() const { 562f7616b9067790757f4e12e834b216c53c8c04ebeDouglas Gregor return (getLocalFastQualifiers() & Qualifiers::Volatile); 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 565a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this type is volatile-qualified. 566fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor bool isVolatileQualified() const; 567a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 568a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this particular QualType instance has any 569a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// qualifiers, without looking through any typedefs that might add 570a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// qualifiers at a different level. 571a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor bool hasLocalQualifiers() const { 572a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return getLocalFastQualifiers() || hasLocalNonFastQualifiers(); 5730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 5740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 575a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this type has any qualifiers. 576fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor bool hasQualifiers() const; 577a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 578a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Determine whether this particular QualType instance has any 579a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// "non-fast" qualifiers, e.g., those that are stored in an ExtQualType 580a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// instance. 581a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor bool hasLocalNonFastQualifiers() const { 582a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return Value.getPointer().is<const ExtQuals*>(); 5830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 5840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 585a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Retrieve the set of qualifiers local to this particular QualType 586a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// instance, not including any qualifiers acquired through typedefs or 587a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// other sugar. 5883b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers getLocalQualifiers() const; 5890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 590a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Retrieve the set of qualifiers applied to this type. 591fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor Qualifiers getQualifiers() const; 592a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 593a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Retrieve the set of CVR (const-volatile-restrict) qualifiers 594a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// local to this particular QualType instance, not including any qualifiers 595a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// acquired through typedefs or other sugar. 596a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor unsigned getLocalCVRQualifiers() const { 597f7616b9067790757f4e12e834b216c53c8c04ebeDouglas Gregor return getLocalFastQualifiers(); 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 599b381aac9bae6d608c72267dd0ed08ec6369e94e4Nuno Lopes 600a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Retrieve the set of CVR (const-volatile-restrict) qualifiers 601a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// applied to this type. 602fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor unsigned getCVRQualifiers() const; 603e724246b9f655801bd96b727daf9dddc44beef4dChandler Carruth 604bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isConstant(ASTContext& Ctx) const { 605bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall return QualType::isConstant(*this, Ctx); 606bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall } 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 608f85e193739c953358c865005855253af4f68a497John McCall /// \brief Determine whether this is a Plain Old Data (POD) type (C++ 3.9p10). 609f85e193739c953358c865005855253af4f68a497John McCall bool isPODType(ASTContext &Context) const; 610f85e193739c953358c865005855253af4f68a497John McCall 611f85e193739c953358c865005855253af4f68a497John McCall /// isCXX11PODType() - Return true if this is a POD type according to the 612f85e193739c953358c865005855253af4f68a497John McCall /// more relaxed rules of the C++11 standard, regardless of the current 613f85e193739c953358c865005855253af4f68a497John McCall /// compilation's language. 614f85e193739c953358c865005855253af4f68a497John McCall /// (C++0x [basic.types]p9) 615f85e193739c953358c865005855253af4f68a497John McCall bool isCXX11PODType(ASTContext &Context) const; 616f85e193739c953358c865005855253af4f68a497John McCall 617f85e193739c953358c865005855253af4f68a497John McCall /// isTrivialType - Return true if this is a trivial type 618f85e193739c953358c865005855253af4f68a497John McCall /// (C++0x [basic.types]p9) 619f85e193739c953358c865005855253af4f68a497John McCall bool isTrivialType(ASTContext &Context) const; 620f85e193739c953358c865005855253af4f68a497John McCall 621f85e193739c953358c865005855253af4f68a497John McCall /// isTriviallyCopyableType - Return true if this is a trivially 622f85e193739c953358c865005855253af4f68a497John McCall /// copyable type (C++0x [basic.types]p9) 623f85e193739c953358c865005855253af4f68a497John McCall bool isTriviallyCopyableType(ASTContext &Context) const; 624f85e193739c953358c865005855253af4f68a497John McCall 6250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Don't promise in the API that anything besides 'const' can be 6260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // easily added. 6270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// addConst - add the specified type qualifier to this QualType. 6290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addConst() { 6300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall addFastQualifiers(Qualifiers::Const); 6310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType withConst() const { 6330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return withFastQualifiers(Qualifiers::Const); 6340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 636308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt /// addVolatile - add the specified type qualifier to this QualType. 637308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt void addVolatile() { 638308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt addFastQualifiers(Qualifiers::Volatile); 639308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt } 640308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt QualType withVolatile() const { 641308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt return withFastQualifiers(Qualifiers::Volatile); 642308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt } 643308742c87e2311c3f349092e5b823c3821e61b10Sean Hunt 644a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall QualType withCVRQualifiers(unsigned CVR) const { 645a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall return withFastQualifiers(CVR); 646a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall } 647a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall 6480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void addFastQualifiers(unsigned TQs) { 6490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(TQs & ~Qualifiers::FastMask) 6500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall && "non-fast qualifier bits set in mask!"); 6510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Value.setInt(Value.getInt() | TQs); 6520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 65449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalConst(); 65549f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalVolatile(); 65649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalRestrict(); 65749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalCVRQualifiers(unsigned Mask); 6580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 65949f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalFastQualifiers() { Value.setInt(0); } 66049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall void removeLocalFastQualifiers(unsigned Mask) { 6610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!(Mask & ~Qualifiers::FastMask) && "mask has non-fast qualifiers"); 6620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Value.setInt(Value.getInt() & ~Mask); 6630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Creates a type with the given qualifiers in addition to any 6660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualifiers already on this type. 6670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType withFastQualifiers(unsigned TQs) const { 6680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = *this; 6690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T.addFastQualifiers(TQs); 6700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 6710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6721c6a38bcea17801e9a4738753aee845381af2b6cSanjiv Gupta 6730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Creates a type with exactly the given fast qualifiers, removing 6740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // any existing fast qualifiers. 67549f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall QualType withExactLocalFastQualifiers(unsigned TQs) const { 67649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return withoutLocalFastQualifiers().withFastQualifiers(TQs); 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Removes fast qualifiers, but leaves any extended qualifiers in place. 68049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall QualType withoutLocalFastQualifiers() const { 6810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = *this; 68249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall T.removeLocalFastQualifiers(); 6830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 684c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 685971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 6863b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall QualType getCanonicalType() const; 6873b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 688a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// \brief Return this type with all of the instance-specific qualifiers 689a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// removed, but without removing any qualifiers that may have been applied 690a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor /// through typedefs. 691a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor QualType getLocalUnqualifiedType() const { return QualType(getTypePtr(), 0); } 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 69362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// \brief Retrieve the unqualified variant of the given type, 69462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// removing as little sugar as possible. 69562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 69662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// This routine looks through various kinds of sugar to find the 69762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// least-desugared type that is unqualified. For example, given: 69862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 69962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// \code 70062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// typedef int Integer; 70162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// typedef const Integer CInteger; 70262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// typedef CInteger DifferenceType; 70362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// \endcode 70462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 70562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// Executing \c getUnqualifiedType() on the type \c DifferenceType will 70662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// desugar until we hit the type \c Integer, which has no qualifiers on it. 70762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 70862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// The resulting type might still be qualified if it's an array 70962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// type. To strip qualifiers even from within an array type, use 71062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// ASTContext::getUnqualifiedArrayType. 71162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall inline QualType getUnqualifiedType() const; 71262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 71362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// getSplitUnqualifiedType - Retrieve the unqualified variant of the 71462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// given type, removing as little sugar as possible. 71562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 71662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// Like getUnqualifiedType(), but also returns the set of 71762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// qualifiers that were built up. 71862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// 71962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// The resulting type might still be qualified if it's an array 72062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// type. To strip qualifiers even from within an array type, use 72162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall /// ASTContext::getUnqualifiedArrayType. 72262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall inline SplitQualType getSplitUnqualifiedType() const; 723a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor 72461d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor /// \brief Determine whether this type is more qualified than the other 72561d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor /// given type, requiring exact equality for non-CVR qualifiers. 726e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor bool isMoreQualifiedThan(QualType Other) const; 72761d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor 72861d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor /// \brief Determine whether this type is at least as qualified as the other 72961d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor /// given type, requiring exact equality for non-CVR qualifiers. 730e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor bool isAtLeastAsQualifiedAs(QualType Other) const; 73161d0b6baf47cf411f6c0f6ddb4acffcfeec724f1Douglas Gregor 732e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor QualType getNonReferenceType() const; 7331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7346398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor /// \brief Determine the type of a (typically non-lvalue) expression with the 7356398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor /// specified result type. 7365291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// 7376398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor /// This routine should be used for expressions for which the return type is 7386398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor /// explicitly specified (e.g., in a cast or call) and isn't necessarily 7396398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor /// an lvalue. It removes a top-level reference (since there are no 7405291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// expressions of reference type) and deletes top-level cvr-qualifiers 7415291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// from non-class types (in C++) or all types (in C). 7426398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor QualType getNonLValueExprType(ASTContext &Context) const; 7435291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 7442fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// getDesugaredType - Return the specified type with any "sugar" removed from 7452fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// the type. This takes off typedefs, typeof's etc. If the outer level of 7462fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// the type is already concrete, it returns it unmodified. This is similar 7472fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// to getting the canonical type, but it doesn't remove *all* typedefs. For 7482fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// example, it returns "T*" as "T*", (not as "int*"), because the pointer is 7492fa8c2598c2615da4639b4e42e9079647bd3aea4Chris Lattner /// concrete. 7500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// 7510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Qualifiers are left in place. 7524ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad QualType getDesugaredType(const ASTContext &Context) const { 75349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getDesugaredType(*this, Context); 75449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall } 75549f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall 75649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall SplitQualType getSplitDesugaredType() const { 75749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getSplitDesugaredType(*this); 758bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall } 75998cd599ee8a9b259ed7388ee2921a20d97658864Douglas Gregor 760075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara /// IgnoreParens - Returns the specified type after dropping any 761075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara /// outer-level parentheses. 762075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType IgnoreParens() const { 763723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara if (isa<ParenType>(*this)) 764723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara return QualType::IgnoreParens(*this); 765723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara return *this; 766075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 767075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// operator==/!= - Indicate whether the specified types and qualifiers are 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// identical. 77050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor friend bool operator==(const QualType &LHS, const QualType &RHS) { 77150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return LHS.Value == RHS.Value; 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 77350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor friend bool operator!=(const QualType &LHS, const QualType &RHS) { 77450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return LHS.Value != RHS.Value; 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 77649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall std::string getAsString() const { 77749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getAsString(split()); 77849f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall } 77949f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static std::string getAsString(SplitQualType split) { 78049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getAsString(split.first, split.second); 78149f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall } 78249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static std::string getAsString(const Type *ty, Qualifiers qs); 783d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor 784d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor std::string getAsString(const PrintingPolicy &Policy) const { 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer std::string S; 786d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor getAsStringInternal(S, Policy); 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return S; 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 789e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner void getAsStringInternal(std::string &Str, 79049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall const PrintingPolicy &Policy) const { 79149f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getAsStringInternal(split(), Str, Policy); 79249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall } 79349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static void getAsStringInternal(SplitQualType split, std::string &out, 79449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall const PrintingPolicy &policy) { 79549f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall return getAsStringInternal(split.first, split.second, out, policy); 79649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall } 79749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static void getAsStringInternal(const Type *ty, Qualifiers qs, 79849f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall std::string &out, 79949f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall const PrintingPolicy &policy); 8001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 801c36d405a02fab41f6c45cb2bc750d64949742903Chris Lattner void dump(const char *s) const; 802c36d405a02fab41f6c45cb2bc750d64949742903Chris Lattner void dump() const; 8031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8043f2dcb1ca8bd2d5d3ccc5c80f4ab06f949d88a89Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID) const { 8053f2dcb1ca8bd2d5d3ccc5c80f4ab06f949d88a89Ted Kremenek ID.AddPointer(getAsOpaquePtr()); 8063f2dcb1ca8bd2d5d3ccc5c80f4ab06f949d88a89Ted Kremenek } 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 808ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb /// getAddressSpace - Return the address space of this type. 809ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb inline unsigned getAddressSpace() const; 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 811f85e193739c953358c865005855253af4f68a497John McCall /// getObjCGCAttr - Returns gc attribute of this type. 8120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall inline Qualifiers::GC getObjCGCAttr() const; 813f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian 814f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian /// isObjCGCWeak true when Type is objc's weak. 815f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian bool isObjCGCWeak() const { 8160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getObjCGCAttr() == Qualifiers::Weak; 817f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian } 818f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian 819f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian /// isObjCGCStrong true when Type is objc's strong. 820f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian bool isObjCGCStrong() const { 8210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getObjCGCAttr() == Qualifiers::Strong; 822f6123ca578eb8aabb76ecce7df6857482017f502Fariborz Jahanian } 8232455636163fdd18581d7fdae816433f886d88213Mike Stump 824f85e193739c953358c865005855253af4f68a497John McCall /// getObjCLifetime - Returns lifetime attribute of this type. 825f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime getObjCLifetime() const { 826f85e193739c953358c865005855253af4f68a497John McCall return getQualifiers().getObjCLifetime(); 827f85e193739c953358c865005855253af4f68a497John McCall } 828f85e193739c953358c865005855253af4f68a497John McCall 829f85e193739c953358c865005855253af4f68a497John McCall bool hasNonTrivialObjCLifetime() const { 830f85e193739c953358c865005855253af4f68a497John McCall return getQualifiers().hasNonTrivialObjCLifetime(); 831f85e193739c953358c865005855253af4f68a497John McCall } 832f85e193739c953358c865005855253af4f68a497John McCall 833f85e193739c953358c865005855253af4f68a497John McCall bool hasStrongOrWeakObjCLifetime() const { 834f85e193739c953358c865005855253af4f68a497John McCall return getQualifiers().hasStrongOrWeakObjCLifetime(); 835f85e193739c953358c865005855253af4f68a497John McCall } 836f85e193739c953358c865005855253af4f68a497John McCall 8370d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall enum DestructionKind { 8380d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall DK_none, 839f85e193739c953358c865005855253af4f68a497John McCall DK_cxx_destructor, 840f85e193739c953358c865005855253af4f68a497John McCall DK_objc_strong_lifetime, 841f85e193739c953358c865005855253af4f68a497John McCall DK_objc_weak_lifetime 8420d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall }; 8430d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall 8440d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall /// isDestructedType - nonzero if objects of this type require 8450d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall /// non-trivial work to clean up after. Non-zero because it's 8460d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall /// conceivable that qualifiers (objc_gc(weak)?) could make 8470d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall /// something require destruction. 8480d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall DestructionKind isDestructedType() const { 8490d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall return isDestructedTypeImpl(*this); 8500d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall } 8510d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall 8522b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// \brief Determine whether expressions of the given type are forbidden 8532b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// from being lvalues in C. 8542b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// 8552b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// The expression types that are forbidden to be lvalues are: 8562b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// - 'void', but not qualified void 8572b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// - function types 8582b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// 8592b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// The exact rule here is C99 6.3.2.1: 8602b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// An lvalue is an expression with an object type or an incomplete 8612b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor /// type other than void. 8622b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor bool isCForbiddenLValueType() const; 8632b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor 864f85e193739c953358c865005855253af4f68a497John McCall /// \brief Determine whether this type has trivial copy-assignment semantics. 865f85e193739c953358c865005855253af4f68a497John McCall bool hasTrivialCopyAssignment(ASTContext &Context) const; 866f85e193739c953358c865005855253af4f68a497John McCall 867bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCallprivate: 868bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // These methods are implemented in a separate translation unit; 869bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // "static"-ize them to avoid creating temporary QualTypes in the 870bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // caller. 871bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall static bool isConstant(QualType T, ASTContext& Ctx); 8724ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static QualType getDesugaredType(QualType T, const ASTContext &Context); 87349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static SplitQualType getSplitDesugaredType(QualType T); 87462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall static SplitQualType getSplitUnqualifiedTypeImpl(QualType type); 875075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static QualType IgnoreParens(QualType T); 8760d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall static DestructionKind isDestructedTypeImpl(QualType type); 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end clang. 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Implement simplify_type for QualType, so that we can dyn_cast from QualType 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to a specific Type class. 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencertemplate<> struct simplify_type<const ::clang::QualType> { 885f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall typedef const ::clang::Type *SimpleType; 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static SimpleType getSimplifiedValue(const ::clang::QualType &Val) { 8874472fc641ea3069463798fb56a04043c28ea2910Douglas Gregor return Val.getTypePtr(); 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencertemplate<> struct simplify_type< ::clang::QualType> 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : public simplify_type<const ::clang::QualType> {}; 8921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8934e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner// Teach SmallPtrSet that QualType is "basically a pointer". 8944e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattnertemplate<> 895daae940507f2e93c6fa12e8062fa958e34cc2d1cChris Lattnerclass PointerLikeTypeTraits<clang::QualType> { 8964e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattnerpublic: 8974e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner static inline void *getAsVoidPointer(clang::QualType P) { 8984e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner return P.getAsOpaquePtr(); 8994e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner } 9004e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner static inline clang::QualType getFromVoidPointer(void *P) { 9014e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner return clang::QualType::getFromOpaquePtr(P); 9024e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner } 9030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Various qualifiers go in low bits. 9040eda3b31a672ea486fa92b9bc49a2c91be856b53Chris Lattner enum { NumLowBitsAvailable = 0 }; 9054e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner}; 9061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90773af669633e13c813f80cd15ecf3e6414778aee4Ted Kremenek} // end namespace llvm 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9113b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// \brief Base class that is common to both the \c ExtQuals and \c Type 9123b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// classes, which allows \c QualType to access the common fields between the 9133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// two. 9143b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// 9153b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallclass ExtQualsTypeCommonBase { 9163b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQualsTypeCommonBase(const Type *baseType, QualType canon) 9173b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : BaseType(baseType), CanonicalType(canon) {} 9183b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9193b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief The "base" type of an extended qualifiers type (\c ExtQuals) or 9203b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// a self-referential pointer (for \c Type). 9213b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// 9223b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// This pointer allows an efficient mapping from a QualType to its 9233b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// underlying type pointer. 9243b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *const BaseType; 9253b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9263b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief The canonical type of this type. A QualType. 9273b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall QualType CanonicalType; 9283b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9293b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class QualType; 9303b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class Type; 9313b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class ExtQuals; 9323b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall}; 9333b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9343b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// ExtQuals - We can encode up to four bits in the low bits of a 9353b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// type pointer, but there are many more type qualifiers that we want 9363b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// to be able to apply to an arbitrary type. Therefore we have this 9373b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// struct, intended to be heap-allocated and used by QualType to 9383b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// store qualifiers. 9393b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// 9403b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// The current design tags the 'const', 'restrict', and 'volatile' qualifiers 9413b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// in three low bits on the QualType pointer; a fourth bit records whether 9423b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// the pointer is an ExtQuals node. The extended qualifiers (address spaces, 9433b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// Objective-C GC attributes) are much more rare. 9443b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallclass ExtQuals : public ExtQualsTypeCommonBase, public llvm::FoldingSetNode { 9453b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // NOTE: changing the fast qualifiers should be straightforward as 9463b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // long as you don't make 'const' non-fast. 9473b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 1. Qualifiers: 9483b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Modify the bitmasks (Qualifiers::TQ and DeclSpec::TQ). 9493b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // Fast qualifiers must occupy the low-order bits. 9503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // b) Update Qualifiers::FastWidth and FastMask. 9513b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 2. QualType: 9523b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Update is{Volatile,Restrict}Qualified(), defined inline. 9533b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // b) Update remove{Volatile,Restrict}, defined near the end of 9543b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // this header. 9553b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 3. ASTContext: 9563b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Update get{Volatile,Restrict}Type. 9573b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9583b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// Quals - the immutable set of qualifiers applied by this 9593b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// node; always contains extended qualifiers. 9603b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals; 9613b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9623b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQuals *this_() { return this; } 9633b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9643b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallpublic: 9653b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQuals(const Type *baseType, QualType canon, Qualifiers quals) 9663b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : ExtQualsTypeCommonBase(baseType, 9673b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall canon.isNull() ? QualType(this_(), 0) : canon), 9683b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals(quals) 9693b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall { 9703b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(Quals.hasNonFastQualifiers() 9713b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall && "ExtQuals created with no fast qualifiers"); 9723b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(!Quals.hasFastQualifiers() 9733b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall && "ExtQuals created with fast qualifiers"); 9743b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 9753b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9763b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers getQualifiers() const { return Quals; } 9773b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9783b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasObjCGCAttr() const { return Quals.hasObjCGCAttr(); } 9793b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers::GC getObjCGCAttr() const { return Quals.getObjCGCAttr(); } 9803b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 981f85e193739c953358c865005855253af4f68a497John McCall bool hasObjCLifetime() const { return Quals.hasObjCLifetime(); } 982f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime getObjCLifetime() const { 983f85e193739c953358c865005855253af4f68a497John McCall return Quals.getObjCLifetime(); 984f85e193739c953358c865005855253af4f68a497John McCall } 985f85e193739c953358c865005855253af4f68a497John McCall 9863b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasAddressSpace() const { return Quals.hasAddressSpace(); } 9873b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall unsigned getAddressSpace() const { return Quals.getAddressSpace(); } 9883b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9893b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *getBaseType() const { return BaseType; } 9903b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9913b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallpublic: 9923b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall void Profile(llvm::FoldingSetNodeID &ID) const { 9933b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Profile(ID, getBaseType(), Quals); 9943b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 9953b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall static void Profile(llvm::FoldingSetNodeID &ID, 9963b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *BaseType, 9973b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals) { 9983b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(!Quals.hasFastQualifiers() && "fast qualifiers in ExtQuals hash!"); 9993b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ID.AddPointer(BaseType); 10003b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals.Profile(ID); 10013b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 10023b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall}; 10033b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 1004c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// \brief The kind of C++0x ref-qualifier associated with a function type, 1005c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// which determines whether a member function's "this" object can be an 1006c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// lvalue, rvalue, or neither. 1007c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregorenum RefQualifierKind { 1008c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief No ref-qualifier was provided. 1009c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_None = 0, 1010c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief An lvalue ref-qualifier was provided (\c &). 1011c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_LValue, 1012c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief An rvalue ref-qualifier was provided (\c &&). 1013c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_RValue 1014c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor}; 1015c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Type - This is the base class of the type hierarchy. A central concept 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// with types is that each type always has a canonical type. A canonical type 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is the type with any typedef names stripped out of it or the types it 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// references. For example, consider: 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// typedef int foo; 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// typedef foo* bar; 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'int *' 'foo *' 'bar' 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// There will be a Type object created for 'int'. Since int is canonical, its 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// canonicaltype pointer points to itself. There is also a Type for 'foo' (a 102772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypedefType). Its CanonicalType pointer points to the 'int' Type. Next 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// there is a PointerType that represents 'int*', which, like 'int', is 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// canonical. Finally, there is a PointerType type for 'foo*' whose canonical 103072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// type is 'int*', and there is a TypedefType for 'bar', whose canonical type 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is also 'int*'. 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Non-canonical types are useful for emitting diagnostics, without losing 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// information about typedefs being used. Canonical types are useful for type 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// comparisons (they allow by-pointer equality tests) and useful for reasoning 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// about whether something has a particular form (e.g. is a function type), 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// because they implicitly, recursively, strip all typedefs out of a type. 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Types, once created, are immutable. 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10411ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregorclass Type : public ExtQualsTypeCommonBase { 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum TypeClass { 104472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) Class, 104527935ee59c30b0d8b610ab676aab8e65350af932John McCall#define LAST_TYPE(Class) TypeLast = Class, 104672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 104772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 104872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TagFirst = Record, TagLast = Enum 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 10501bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1052c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Type(const Type&); // DO NOT IMPLEMENT. 1053c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void operator=(const Type&); // DO NOT IMPLEMENT. 1054c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 1055b870b88df784c2940efce448ebfaf54dece14666John McCall /// Bitfields required by the Type class. 1056b870b88df784c2940efce448ebfaf54dece14666John McCall class TypeBitfields { 1057b870b88df784c2940efce448ebfaf54dece14666John McCall friend class Type; 1058b7b2688bab0eac053d3e2938b329c8e523fd252bJohn McCall template <class T> friend class TypePropertyCache; 105927935ee59c30b0d8b610ab676aab8e65350af932John McCall 1060b870b88df784c2940efce448ebfaf54dece14666John McCall /// TypeClass bitfield - Enum that specifies what subclass this belongs to. 1061b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned TC : 8; 1062b870b88df784c2940efce448ebfaf54dece14666John McCall 1063b870b88df784c2940efce448ebfaf54dece14666John McCall /// Dependent - Whether this type is a dependent type (C++ [temp.dep.type]). 1064b870b88df784c2940efce448ebfaf54dece14666John McCall /// Note that this should stay at the end of the ivars for Type so that 1065b870b88df784c2940efce448ebfaf54dece14666John McCall /// subclasses can pack their bitfields into the same word. 1066bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned Dependent : 1; 106760e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1068b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Whether this type is a variably-modified type (C99 6.7.5). 1069bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned VariablyModified : 1; 1070d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 1071d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this type contains an unexpanded parameter pack 1072d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// (for C++0x variadic templates). 1073d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor unsigned ContainsUnexpandedParameterPack : 1; 107435495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 10751fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Nonzero if the cache (i.e. the bitfields here starting 10761fb0caaa7bef765b85972274e3b434af2572c141John McCall /// with 'Cache') is valid. If so, then this is a 10771fb0caaa7bef765b85972274e3b434af2572c141John McCall /// LangOptions::VisibilityMode+1. 10781fb0caaa7bef765b85972274e3b434af2572c141John McCall mutable unsigned CacheValidAndVisibility : 2; 107960e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1080b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Linkage of this type. 1081b870b88df784c2940efce448ebfaf54dece14666John McCall mutable unsigned CachedLinkage : 2; 108207a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1083b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Whether this type involves and local or unnamed types. 1084bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet mutable unsigned CachedLocalOrUnnamed : 1; 1085db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor 1086b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief FromAST - Whether this type comes from an AST file. 1087bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet mutable unsigned FromAST : 1; 1088b870b88df784c2940efce448ebfaf54dece14666John McCall 10891fb0caaa7bef765b85972274e3b434af2572c141John McCall bool isCacheValid() const { 10901fb0caaa7bef765b85972274e3b434af2572c141John McCall return (CacheValidAndVisibility != 0); 10911fb0caaa7bef765b85972274e3b434af2572c141John McCall } 10921fb0caaa7bef765b85972274e3b434af2572c141John McCall Visibility getVisibility() const { 10931fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 10941fb0caaa7bef765b85972274e3b434af2572c141John McCall return static_cast<Visibility>(CacheValidAndVisibility-1); 10951fb0caaa7bef765b85972274e3b434af2572c141John McCall } 10961fb0caaa7bef765b85972274e3b434af2572c141John McCall Linkage getLinkage() const { 10971fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 10981fb0caaa7bef765b85972274e3b434af2572c141John McCall return static_cast<Linkage>(CachedLinkage); 10991fb0caaa7bef765b85972274e3b434af2572c141John McCall } 11001fb0caaa7bef765b85972274e3b434af2572c141John McCall bool hasLocalOrUnnamedType() const { 11011fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 11021fb0caaa7bef765b85972274e3b434af2572c141John McCall return CachedLocalOrUnnamed; 11031fb0caaa7bef765b85972274e3b434af2572c141John McCall } 1104b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1105d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor enum { NumTypeBits = 17 }; 1106b870b88df784c2940efce448ebfaf54dece14666John McCall 1107b870b88df784c2940efce448ebfaf54dece14666John McCallprotected: 1108b870b88df784c2940efce448ebfaf54dece14666John McCall // These classes allow subclasses to somewhat cleanly pack bitfields 1109b870b88df784c2940efce448ebfaf54dece14666John McCall // into Type. 1110b870b88df784c2940efce448ebfaf54dece14666John McCall 1111b870b88df784c2940efce448ebfaf54dece14666John McCall class ArrayTypeBitfields { 1112b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ArrayType; 1113b870b88df784c2940efce448ebfaf54dece14666John McCall 1114b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1115b870b88df784c2940efce448ebfaf54dece14666John McCall 1116b870b88df784c2940efce448ebfaf54dece14666John McCall /// IndexTypeQuals - CVR qualifiers from declarations like 1117b870b88df784c2940efce448ebfaf54dece14666John McCall /// 'int X[static restrict 4]'. For function parameters only. 1118b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned IndexTypeQuals : 3; 1119b870b88df784c2940efce448ebfaf54dece14666John McCall 1120b870b88df784c2940efce448ebfaf54dece14666John McCall /// SizeModifier - storage class qualifiers from declarations like 1121b870b88df784c2940efce448ebfaf54dece14666John McCall /// 'int X[static restrict 4]'. For function parameters only. 1122b870b88df784c2940efce448ebfaf54dece14666John McCall /// Actually an ArrayType::ArraySizeModifier. 1123b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned SizeModifier : 3; 1124b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1125b870b88df784c2940efce448ebfaf54dece14666John McCall 1126b870b88df784c2940efce448ebfaf54dece14666John McCall class BuiltinTypeBitfields { 1127b870b88df784c2940efce448ebfaf54dece14666John McCall friend class BuiltinType; 1128b870b88df784c2940efce448ebfaf54dece14666John McCall 1129b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1130b870b88df784c2940efce448ebfaf54dece14666John McCall 1131b870b88df784c2940efce448ebfaf54dece14666John McCall /// The kind (BuiltinType::Kind) of builtin type this is. 1132b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned Kind : 8; 1133b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1134b870b88df784c2940efce448ebfaf54dece14666John McCall 1135b870b88df784c2940efce448ebfaf54dece14666John McCall class FunctionTypeBitfields { 1136b870b88df784c2940efce448ebfaf54dece14666John McCall friend class FunctionType; 1137b870b88df784c2940efce448ebfaf54dece14666John McCall 1138b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1139b870b88df784c2940efce448ebfaf54dece14666John McCall 1140b870b88df784c2940efce448ebfaf54dece14666John McCall /// Extra information which affects how the function is called, like 1141b870b88df784c2940efce448ebfaf54dece14666John McCall /// regparm and the calling convention. 11427e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor unsigned ExtInfo : 8; 1143b870b88df784c2940efce448ebfaf54dece14666John McCall 1144e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall /// Whether the function is variadic. Only used by FunctionProtoType. 1145e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned Variadic : 1; 1146b870b88df784c2940efce448ebfaf54dece14666John McCall 1147b870b88df784c2940efce448ebfaf54dece14666John McCall /// TypeQuals - Used only by FunctionProtoType, put here to pack with the 1148b870b88df784c2940efce448ebfaf54dece14666John McCall /// other bitfields. 1149b870b88df784c2940efce448ebfaf54dece14666John McCall /// The qualifiers are part of FunctionProtoType because... 1150b870b88df784c2940efce448ebfaf54dece14666John McCall /// 1151b870b88df784c2940efce448ebfaf54dece14666John McCall /// C++ 8.3.5p4: The return type, the parameter type list and the 1152b870b88df784c2940efce448ebfaf54dece14666John McCall /// cv-qualifier-seq, [...], are part of the function type. 1153b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned TypeQuals : 3; 1154c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 1155c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief The ref-qualifier associated with a \c FunctionProtoType. 1156c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// 1157c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// This is a value of type \c RefQualifierKind. 1158c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor unsigned RefQualifier : 2; 1159b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1160b870b88df784c2940efce448ebfaf54dece14666John McCall 1161b870b88df784c2940efce448ebfaf54dece14666John McCall class ObjCObjectTypeBitfields { 1162b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ObjCObjectType; 1163b870b88df784c2940efce448ebfaf54dece14666John McCall 1164b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1165b870b88df784c2940efce448ebfaf54dece14666John McCall 1166b870b88df784c2940efce448ebfaf54dece14666John McCall /// NumProtocols - The number of protocols stored directly on this 1167b870b88df784c2940efce448ebfaf54dece14666John McCall /// object type. 1168b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned NumProtocols : 32 - NumTypeBits; 1169b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1170b870b88df784c2940efce448ebfaf54dece14666John McCall 1171b870b88df784c2940efce448ebfaf54dece14666John McCall class ReferenceTypeBitfields { 1172b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ReferenceType; 1173b870b88df784c2940efce448ebfaf54dece14666John McCall 1174b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1175b870b88df784c2940efce448ebfaf54dece14666John McCall 1176b870b88df784c2940efce448ebfaf54dece14666John McCall /// True if the type was originally spelled with an lvalue sigil. 1177b870b88df784c2940efce448ebfaf54dece14666John McCall /// This is never true of rvalue references but can also be false 1178b870b88df784c2940efce448ebfaf54dece14666John McCall /// on lvalue references because of C++0x [dcl.typedef]p9, 1179b870b88df784c2940efce448ebfaf54dece14666John McCall /// as follows: 1180b870b88df784c2940efce448ebfaf54dece14666John McCall /// 1181b870b88df784c2940efce448ebfaf54dece14666John McCall /// typedef int &ref; // lvalue, spelled lvalue 1182b870b88df784c2940efce448ebfaf54dece14666John McCall /// typedef int &&rvref; // rvalue 1183b870b88df784c2940efce448ebfaf54dece14666John McCall /// ref &a; // lvalue, inner ref, spelled lvalue 1184b870b88df784c2940efce448ebfaf54dece14666John McCall /// ref &&a; // lvalue, inner ref 1185b870b88df784c2940efce448ebfaf54dece14666John McCall /// rvref &a; // lvalue, inner ref, spelled lvalue 1186b870b88df784c2940efce448ebfaf54dece14666John McCall /// rvref &&a; // rvalue, inner ref 1187bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned SpelledAsLValue : 1; 1188b870b88df784c2940efce448ebfaf54dece14666John McCall 1189b870b88df784c2940efce448ebfaf54dece14666John McCall /// True if the inner type is a reference type. This only happens 1190b870b88df784c2940efce448ebfaf54dece14666John McCall /// in non-canonical forms. 1191bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned InnerRef : 1; 1192b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1193b870b88df784c2940efce448ebfaf54dece14666John McCall 119477be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall class TypeWithKeywordBitfields { 119577be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall friend class TypeWithKeyword; 119677be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 119777be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall unsigned : NumTypeBits; 119877be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 119977be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall /// An ElaboratedTypeKeyword. 8 bits for efficient access. 120077be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall unsigned Keyword : 8; 120177be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall }; 120277be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 1203b870b88df784c2940efce448ebfaf54dece14666John McCall class VectorTypeBitfields { 1204b870b88df784c2940efce448ebfaf54dece14666John McCall friend class VectorType; 120507a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1206b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 120771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 1208e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson /// VecKind - The kind of vector, either a generic vector type or some 1209e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson /// target-specific vector type such as for AltiVec or Neon. 1210cc3b946c35c4372272034e6f0663089477a9a5bdBob Wilson unsigned VecKind : 3; 1211b870b88df784c2940efce448ebfaf54dece14666John McCall 1212b870b88df784c2940efce448ebfaf54dece14666John McCall /// NumElements - The number of elements in the vector. 1213cc3b946c35c4372272034e6f0663089477a9a5bdBob Wilson unsigned NumElements : 29 - NumTypeBits; 1214b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1215b870b88df784c2940efce448ebfaf54dece14666John McCall 12169d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall class AttributedTypeBitfields { 12179d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall friend class AttributedType; 12189d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 12199d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall unsigned : NumTypeBits; 12209d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 12219d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall /// AttrKind - an AttributedType::Kind 12229d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall unsigned AttrKind : 32 - NumTypeBits; 12239d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall }; 12249d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 1225b870b88df784c2940efce448ebfaf54dece14666John McCall union { 1226b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBitfields TypeBits; 1227b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBitfields ArrayTypeBits; 12289d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedTypeBitfields AttributedTypeBits; 1229b870b88df784c2940efce448ebfaf54dece14666John McCall BuiltinTypeBitfields BuiltinTypeBits; 1230b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBitfields FunctionTypeBits; 1231b870b88df784c2940efce448ebfaf54dece14666John McCall ObjCObjectTypeBitfields ObjCObjectTypeBits; 1232b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBitfields ReferenceTypeBits; 123377be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall TypeWithKeywordBitfields TypeWithKeywordBits; 1234b870b88df784c2940efce448ebfaf54dece14666John McCall VectorTypeBitfields VectorTypeBits; 1235b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1236b870b88df784c2940efce448ebfaf54dece14666John McCall 1237b870b88df784c2940efce448ebfaf54dece14666John McCallprivate: 12383c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// \brief Set whether this type comes from an AST file. 12393c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl void setFromAST(bool V = true) const { 1240b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.FromAST = V; 124107a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl } 124207a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1243b7b2688bab0eac053d3e2938b329c8e523fd252bJohn McCall template <class T> friend class TypePropertyCache; 12441fb0caaa7bef765b85972274e3b434af2572c141John McCall 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 1246124dd7b5777e29ecac006822bd4d4623f0dc4264Hartmut Kaiser // silence VC++ warning C4355: 'this' : used in base member initializer list 1247124dd7b5777e29ecac006822bd4d4623f0dc4264Hartmut Kaiser Type *this_() { return this; } 12483b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Type(TypeClass tc, QualType canon, bool Dependent, bool VariablyModified, 1249d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 12503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : ExtQualsTypeCommonBase(this, 12513b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall canon.isNull() ? QualType(this_(), 0) : canon) { 1252b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.TC = tc; 1253b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.Dependent = Dependent; 1254b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.VariablyModified = VariablyModified; 1255d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor TypeBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 12561fb0caaa7bef765b85972274e3b434af2572c141John McCall TypeBits.CacheValidAndVisibility = 0; 1257b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.CachedLocalOrUnnamed = false; 1258b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.CachedLinkage = NoLinkage; 1259b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.FromAST = false; 1260b870b88df784c2940efce448ebfaf54dece14666John McCall } 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; 12621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1263b870b88df784c2940efce448ebfaf54dece14666John McCall void setDependent(bool D = true) { TypeBits.Dependent = D; } 1264b870b88df784c2940efce448ebfaf54dece14666John McCall void setVariablyModified(bool VM = true) { TypeBits.VariablyModified = VM; } 1265d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 1266d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor TypeBits.ContainsUnexpandedParameterPack = PP; 1267d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 1268d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 12698b9023ba35a86838789e2c9034a6128728c547aaChris Lattnerpublic: 1270b870b88df784c2940efce448ebfaf54dece14666John McCall TypeClass getTypeClass() const { return static_cast<TypeClass>(TypeBits.TC); } 12711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12723c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// \brief Whether this type comes from an AST file. 1273b870b88df784c2940efce448ebfaf54dece14666John McCall bool isFromAST() const { return TypeBits.FromAST; } 127407a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1275d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this type is or contains an unexpanded parameter 1276d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack, used to support C++0x variadic templates. 1277d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1278d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// A type that contains a parameter pack shall be expanded by the 1279d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// ellipsis operator at some point. For example, the typedef in the 1280d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// following example contains an unexpanded parameter pack 'T': 1281d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1282d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 1283d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename ...T> 1284d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// struct X { 1285d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// typedef T* pointer_types; // ill-formed; T is a parameter pack. 1286d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// }; 1287d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 1288d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1289d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Note that this routine does not specify which 1290d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool containsUnexpandedParameterPack() const { 1291d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return TypeBits.ContainsUnexpandedParameterPack; 1292d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 1293d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 12943b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// Determines if this type would be canonical if it had no further 12953b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// qualification. 1296467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall bool isCanonicalUnqualified() const { 12973b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return CanonicalType == QualType(this, 0); 1298467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall } 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// Types are partitioned into 3 broad categories (C99 6.2.5p1): 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// object types, function types, and incomplete types. 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIncompleteType - Return true if this is an incomplete type. 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// A type that can describe objects, but which lacks information needed to 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// determine its size (e.g. void, or a fwd declared struct). Clients of this 13061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// routine will need to determine if the size is actually required. 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncompleteType() const; 1308d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner 1309d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner /// isIncompleteOrObjectType - Return true if this is an incomplete or object 1310d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner /// type, in other words, not a function type. 1311d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner bool isIncompleteOrObjectType() const { 1312d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner return !isFunctionType(); 1313d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner } 13142fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor 13152fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor /// \brief Determine whether this type is an object type. 13162fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor bool isObjectType() const { 13172fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // C++ [basic.types]p8: 13182fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // An object type is a (possibly cv-qualified) type that is not a 13192fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // function type, not a reference type, and not a void type. 13202fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor return !isReferenceType() && !isFunctionType() && !isVoidType(); 13212fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor } 132264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1323ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl /// isLiteralType - Return true if this is a literal type 1324ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl /// (C++0x [basic.types]p10) 1325ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl bool isLiteralType() const; 1326ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl 1327636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth /// \brief Test if this type is a standard-layout type. 1328636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth /// (C++0x [basic.type]p9) 1329636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth bool isStandardLayoutType() const; 1330636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Helper methods to distinguish type categories. All type predicates 1332ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb /// operate on the canonical type, ignoring typedefs and qualifiers. 1333e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar 13349b065ddabf572772991a4aadad5bf4921fac5069Tom Care /// isBuiltinType - returns true if the type is a builtin type. 13359b065ddabf572772991a4aadad5bf4921fac5069Tom Care bool isBuiltinType() const; 13369b065ddabf572772991a4aadad5bf4921fac5069Tom Care 1337e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar /// isSpecificBuiltinType - Test for a particular builtin type. 1338e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar bool isSpecificBuiltinType(unsigned K) const; 13391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13402a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// isPlaceholderType - Test for a type which does not represent an 13412a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// actual type-system type but is instead used as a placeholder for 13422a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// various convenient purposes within Clang. All such types are 13432a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// BuiltinTypes. 13442a984cad5ac3fdceeff2bd99daa7b90979313475John McCall bool isPlaceholderType() const; 13452a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 1346864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// isSpecificPlaceholderType - Test for a specific placeholder type. 1347864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall bool isSpecificPlaceholderType(unsigned K) const; 1348864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 134996d2c438f5c9ada8229f7f2ac049d2e9957bc954Steve Naroff /// isIntegerType() does *not* include complex integers (a GCC extension). 135096d2c438f5c9ada8229f7f2ac049d2e9957bc954Steve Naroff /// isComplexIntegerType() can be used to test for complex integers. 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIntegerType() const; // C99 6.2.5p17 (int, char, bool, enum) 135213b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isEnumeralType() const; 135313b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isBooleanType() const; 135413b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isCharType() const; 135577a52233f7c0f162672652051bfe78b65ad4f789Douglas Gregor bool isWideCharType() const; 135620093b4bf698f292c664676987541d5103b65b15Douglas Gregor bool isAnyCharacterType() const; 13579d3347a5887d2d25afe8b0bd35783a72ec86cce2Douglas Gregor bool isIntegralType(ASTContext &Ctx) const; 135820093b4bf698f292c664676987541d5103b65b15Douglas Gregor 13592ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor /// \brief Determine whether this type is an integral or enumeration type. 13602ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor bool isIntegralOrEnumerationType() const; 13611274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor /// \brief Determine whether this type is an integral or unscoped enumeration 13621274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor /// type. 13631274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor bool isIntegralOrUnscopedEnumerationType() const; 13642ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Floating point categories. 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isRealFloatingType() const; // C99 6.2.5p10 (float, double, long double) 136702f62a9fedbc370fba081303399410a3afdde29fSteve Naroff /// isComplexType() does *not* include complex integers (a GCC extension). 136802f62a9fedbc370fba081303399410a3afdde29fSteve Naroff /// isComplexIntegerType() can be used to test for complex integers. 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isComplexType() const; // C99 6.2.5p11 (complex) 1370f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattner bool isAnyComplexType() const; // C99 6.2.5p11 (complex) + Complex Int. 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFloatingType() const; // C99 6.2.5p11 (real floating + complex) 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isRealType() const; // C99 6.2.5p17 (real floating + integer) 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArithmeticType() const; // C99 6.2.5p18 (integer + floating) 1374c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isVoidType() const; // C99 6.2.5p19 1375c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isDerivedType() const; // C99 6.2.5p20 1376c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isScalarType() const; // C99 6.2.5p21 (arithmetic + pointers) 1377d7eb846aaf5ee4a8d22c3cd0796d1e7229d46013Douglas Gregor bool isAggregateType() const; 1378aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth bool isFundamentalType() const; 1379aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth bool isCompoundType() const; 13801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1381c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner // Type Predicates: Check to see if this type is structurally the specified 1382ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // type, ignoring typedefs and qualifiers. 1383c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isFunctionType() const; 1384183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall bool isFunctionNoProtoType() const { return getAs<FunctionNoProtoType>(); } 1385183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall bool isFunctionProtoType() const { return getAs<FunctionProtoType>(); } 1386befee48ff2a1dab236c5700f00ecca1cfdcd5837Chris Lattner bool isPointerType() const; 138758f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff bool isAnyPointerType() const; // Any C pointer or ObjC object pointer 13885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff bool isBlockPointerType() const; 13897154a77e7c1f23418342d3b72836ab504aa7821eSteve Naroff bool isVoidPointerType() const; 1390a1d9fdea79ba7bbd71862b9f9f78f5f117331fc7Chris Lattner bool isReferenceType() const; 13917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl bool isLValueReferenceType() const; 13927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl bool isRValueReferenceType() const; 1393bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner bool isFunctionPointerType() const; 1394f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl bool isMemberPointerType() const; 1395f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl bool isMemberFunctionPointerType() const; 1396db68e28c05a67735211e688009890cf834c22e75Douglas Gregor bool isMemberDataPointerType() const; 1397c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isArrayType() const; 1398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isConstantArrayType() const; 1399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isIncompleteArrayType() const; 1400c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isVariableArrayType() const; 1401898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isDependentSizedArrayType() const; 1402c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isRecordType() const; 14031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isClassType() const; 14041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isStructureType() const; 1405fb87b89fc9eb103e19fb8e4b925c23f0bd091b99Douglas Gregor bool isStructureOrClassType() const; 14064cdec1c3ca80124024a787ce32833fd5b20cbb15Steve Naroff bool isUnionType() const; 1407368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isComplexIntegerType() const; // GCC _Complex integer type. 1408368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isVectorType() const; // GCC vector type. 1409213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman bool isExtVectorType() const; // Extended vector type. 1410f85e193739c953358c865005855253af4f68a497John McCall bool isObjCObjectPointerType() const; // pointer to ObjC object 1411f85e193739c953358c865005855253af4f68a497John McCall bool isObjCRetainableType() const; // ObjC object or block pointer 1412f85e193739c953358c865005855253af4f68a497John McCall bool isObjCLifetimeType() const; // (array of)* retainable type 1413f85e193739c953358c865005855253af4f68a497John McCall bool isObjCIndirectLifetimeType() const; // (pointer to)* lifetime type 1414f85e193739c953358c865005855253af4f68a497John McCall bool isObjCNSObjectType() const; // __attribute__((NSObject)) 141514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // FIXME: change this to 'raw' interface type, so we can used 'interface' type 141614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // for the common case. 1417c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCObjectType() const; // NSString or typeof(*(id)0) 1418368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isObjCQualifiedInterfaceType() const; // NSString<foo> 1419368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isObjCQualifiedIdType() const; // id<foo> 1420470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff bool isObjCQualifiedClassType() const; // Class<foo> 1421569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor bool isObjCObjectOrInterfaceType() const; 142214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCIdType() const; // id 142314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCClassType() const; // Class 142413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian bool isObjCSelType() const; // Class 1425de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff bool isObjCBuiltinType() const; // 'id' or 'Class' 1426f85e193739c953358c865005855253af4f68a497John McCall bool isObjCARCBridgableType() const; 1427f85e193739c953358c865005855253af4f68a497John McCall bool isCARCBridgableType() const; 142872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor bool isTemplateTypeParmType() const; // C++ template type parameter 14296e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl bool isNullPtrType() const; // C++0x nullptr_t 1430898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1431f85e193739c953358c865005855253af4f68a497John McCall /// Determines if this type, which must satisfy 1432f85e193739c953358c865005855253af4f68a497John McCall /// isObjCLifetimeType(), is implicitly __unsafe_unretained rather 1433f85e193739c953358c865005855253af4f68a497John McCall /// than implicitly __strong. 1434f85e193739c953358c865005855253af4f68a497John McCall bool isObjCARCImplicitlyUnretainedType() const; 1435f85e193739c953358c865005855253af4f68a497John McCall 1436f85e193739c953358c865005855253af4f68a497John McCall /// Return the implicit lifetime for this type, which must not be dependent. 1437f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime getObjCARCImplicitLifetime() const; 1438f85e193739c953358c865005855253af4f68a497John McCall 1439daa8e4e888758d55a7a759dd4a91b83921cef222John McCall enum ScalarTypeKind { 1440daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Pointer, 1441daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_MemberPointer, 1442daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Bool, 1443daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Integral, 1444daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Floating, 1445daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_IntegralComplex, 1446daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_FloatingComplex 1447daa8e4e888758d55a7a759dd4a91b83921cef222John McCall }; 1448daa8e4e888758d55a7a759dd4a91b83921cef222John McCall /// getScalarTypeKind - Given that this is a scalar type, classify it. 1449daa8e4e888758d55a7a759dd4a91b83921cef222John McCall ScalarTypeKind getScalarTypeKind() const; 1450daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 1451898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isDependentType - Whether this type is a dependent type, meaning 14521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// that its definition somehow depends on a template parameter 1453898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.type]). 1454b870b88df784c2940efce448ebfaf54dece14666John McCall bool isDependentType() const { return TypeBits.Dependent; } 145535495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 145635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor /// \brief Whether this type is a variably-modified type (C99 6.7.5). 1457b870b88df784c2940efce448ebfaf54dece14666John McCall bool isVariablyModifiedType() const { return TypeBits.VariablyModified; } 14583b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 14593b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief Whether this type involves a variable-length array type 14603b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// with a definite size. 14613b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasSizedVLAType() const; 146235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 1463db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor /// \brief Whether this type is or contains a local or unnamed type. 1464db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor bool hasUnnamedOrLocalType() const; 1465db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor 1466063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor bool isOverloadableType() const; 146772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 14684033642464e8ba0982f88f34cffad808d247b393Douglas Gregor /// \brief Determine wither this type is a C++ elaborated-type-specifier. 14694033642464e8ba0982f88f34cffad808d247b393Douglas Gregor bool isElaboratedTypeSpecifier() const; 1470bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth 1471bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth bool canDecayToPointerType() const; 14722b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor 14738958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// hasPointerRepresentation - Whether this type is represented 14748958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// natively as a pointer; this includes pointers, references, block 14758958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// pointers, and Objective-C interface, qualified id, and qualified 14766e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl /// interface types, as well as nullptr_t. 14778958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar bool hasPointerRepresentation() const; 14788958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar 1479820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian /// hasObjCPointerRepresentation - Whether this type can represent 1480820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian /// an objective pointer type for the purpose of GC'ability 14811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool hasObjCPointerRepresentation() const; 1482820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian 1483f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an integer representation 1484f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an integer type or a vector. 1485f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasIntegerRepresentation() const; 1486f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1487f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an signed integer representation 1488f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an signed integer type or a vector. 1489f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasSignedIntegerRepresentation() const; 1490f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1491f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an unsigned integer representation 1492f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an unsigned integer type or a vector. 1493f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasUnsignedIntegerRepresentation() const; 1494f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 14958eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor /// \brief Determine whether this type has a floating-point representation 14968eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor /// of some sort, e.g., it is a floating-point type or a vector thereof. 14978eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor bool hasFloatingRepresentation() const; 1498f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1499c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner // Type Checking Functions: Check to see if this type is structurally the 1500f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // specified type, ignoring typedefs and qualifiers, and return a pointer to 1501f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // the best type we can. 1502769c9cfc6e06bd9d8ffe7a4397b939f19b0e4dc3Ted Kremenek const RecordType *getAsStructureType() const; 1503898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// NOTE: getAs*ArrayType are methods on ASTContext. 1504c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner const RecordType *getAsUnionType() const; 15054cdec1c3ca80124024a787ce32833fd5b20cbb15Steve Naroff const ComplexType *getAsComplexIntegerType() const; // GCC complex int type. 150614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // The following is a convenience method that returns an ObjCObjectPointerType 150714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // for object declared using an interface. 150814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *getAsObjCInterfacePointerType() const; 150914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *getAsObjCQualifiedIdType() const; 1510759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian const ObjCObjectPointerType *getAsObjCQualifiedClassType() const; 1511c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *getAsObjCQualifiedInterfaceType() const; 1512a91d6a6619a91d0ca7102d8ab5678d855f04d850Fariborz Jahanian const CXXRecordDecl *getCXXRecordDeclForPointerType() const; 15131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1514c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// \brief Retrieves the CXXRecordDecl that this type refers to, either 1515c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// because the type is a RecordType or because it is the injected-class-name 1516c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// type of a class template or class template partial specialization. 1517c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor CXXRecordDecl *getAsCXXRecordDecl() const; 151834b41d939a1328f484511c6002ba2456db879a29Richard Smith 151934b41d939a1328f484511c6002ba2456db879a29Richard Smith /// \brief Get the AutoType whose type will be deduced for a variable with 152034b41d939a1328f484511c6002ba2456db879a29Richard Smith /// an initializer of this type. This looks through declarators like pointer 152134b41d939a1328f484511c6002ba2456db879a29Richard Smith /// types, but not through decltype or typedefs. 152234b41d939a1328f484511c6002ba2456db879a29Richard Smith AutoType *getContainedAutoType() const; 1523c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor 1524d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// Member-template getAs<specific type>'. Look through sugar for 1525d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// an instance of <specific type>. This scheme will eventually 1526d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// replace the specific getAsXXXX methods above. 1527d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// 1528d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// There are some specializations of this member template listed 1529d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// immediately following this class. 15301a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek template <typename T> const T *getAs() const; 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15323b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// A variant of getAs<> for array types which silently discards 15333b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// qualifiers from the outermost type. 15343b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ArrayType *getAsArrayTypeUnsafe() const; 15353b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 1536d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// Member-template castAs<specific type>. Look through sugar for 1537d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// the underlying instance of <specific type>. 1538d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// 1539d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// This method has the same relationship to getAs<T> as cast<T> has 1540d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// to dyn_cast<T>; which is to say, the underlying type *must* 1541d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// have the intended type, and this method will never return null. 1542d0370f59e79702ac908c81bf556519f91e9ca297John McCall template <typename T> const T *castAs() const; 1543d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1544d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// A variant of castAs<> for array type which silently discards 1545d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// qualifiers from the outermost type. 1546d0370f59e79702ac908c81bf556519f91e9ca297John McCall const ArrayType *castAsArrayTypeUnsafe() const; 1547d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1548d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// getBaseElementTypeUnsafe - Get the base element type of this 1549d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// type, potentially discarding type qualifiers. This method 1550d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// should never be used when type qualifiers are meaningful. 1551d0370f59e79702ac908c81bf556519f91e9ca297John McCall const Type *getBaseElementTypeUnsafe() const; 1552d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1553c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// getArrayElementTypeNoTypeQual - If this is an array type, return the 1554c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// element type of the array, potentially with type qualifiers missing. 1555c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// This method should never be used when type qualifiers are meaningful. 1556c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const Type *getArrayElementTypeNoTypeQual() const; 15571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1558f8910df57799256c1897a8610dc52685729ae90eSteve Naroff /// getPointeeType - If this is a pointer, ObjC object pointer, or block 1559f8910df57799256c1897a8610dc52685729ae90eSteve Naroff /// pointer, this returns the respective pointee. 156014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff QualType getPointeeType() const; 15611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1562bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// getUnqualifiedDesugaredType() - Return the specified type with 1563bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// any "sugar" removed from the type, removing any typedefs, 1564bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// typeofs, etc., as well as any qualifiers. 1565bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall const Type *getUnqualifiedDesugaredType() const; 15661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// More type predicates useful for type checking/promotion 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPromotableIntegerType() const; // C99 6.3.1.1p2 15695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isSignedIntegerType - Return true if this is an integer type that is 1571d5bbce4382622feb4ca5978c4bb8fcceb7aaec00Chris Lattner /// signed, according to C99 6.2.5p4 [char, signed char, short, int, long..], 15725f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// or an enum decl which has a signed representation. 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSignedIntegerType() const; 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isUnsignedIntegerType - Return true if this is an integer type that is 15765f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// unsigned, according to C99 6.2.5p6 [which returns true for _Bool], 15775f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// or an enum decl which has an unsigned representation. 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isUnsignedIntegerType() const; 1579d5bbce4382622feb4ca5978c4bb8fcceb7aaec00Chris Lattner 1580575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// Determines whether this is an integer type that is signed or an 1581575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// enumeration types whose underlying type is a signed integer type. 1582575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor bool isSignedIntegerOrEnumerationType() const; 1583575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor 1584575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// Determines whether this is an integer type that is unsigned or an 1585575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// enumeration types whose underlying type is a unsigned integer type. 1586575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor bool isUnsignedIntegerOrEnumerationType() const; 1587575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isConstantSizeType - Return true if this is not a variable sized type, 15899bfa73c5ab7bf4b0e749d04f29da6884e8d5bd9fChris Lattner /// according to the rules of C99 6.7.5p3. It is not legal to call this on 15909bfa73c5ab7bf4b0e749d04f29da6884e8d5bd9fChris Lattner /// incomplete types. 15913c2b3170041f69a92904e3bab9b6d654eaf260acEli Friedman bool isConstantSizeType() const; 1592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 159322b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman /// isSpecifierType - Returns true if this type can be represented by some 159422b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman /// set of type specifiers. 159522b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman bool isSpecifierType() const; 159622b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman 15970b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor /// \brief Determine the linkage of this type. 159860e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor Linkage getLinkage() const; 15991fb0caaa7bef765b85972274e3b434af2572c141John McCall 16001fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Determine the visibility of this type. 16011fb0caaa7bef765b85972274e3b434af2572c141John McCall Visibility getVisibility() const; 16021fb0caaa7bef765b85972274e3b434af2572c141John McCall 16031fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Determine the linkage and visibility of this type. 16041fb0caaa7bef765b85972274e3b434af2572c141John McCall std::pair<Linkage,Visibility> getLinkageAndVisibility() const; 160560e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 160660e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor /// \brief Note that the linkage is no longer known. 160760e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor void ClearLinkageCache(); 160860e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 160960e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor const char *getTypeClassName() const; 16100b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1611ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall QualType getCanonicalTypeInternal() const { 1612ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall return CanonicalType; 1613ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall } 1614ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall CanQualType getCanonicalTypeUnqualified() const; // in CanonicalType.h 1615c36d405a02fab41f6c45cb2bc750d64949742903Chris Lattner void dump() const; 1616f85e193739c953358c865005855253af4f68a497John McCall 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *) { return true; } 1618be191100e034b23a3e13053757a57b7f5068c24aArgyrios Kyrtzidis 1619c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl friend class ASTReader; 1620a4232eb646d89e7d52424bb42eb87d9061f39e63Sebastian Redl friend class ASTWriter; 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1623183700f494ec9b6701b6efe82bcb25f4c79ba561John McCalltemplate <> inline const TypedefType *Type::getAs() const { 1624183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return dyn_cast<TypedefType>(this); 1625183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall} 1626183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 1627183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall// We can do canonical leaf types faster, because we don't have to 1628183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall// worry about preserving child type decoration. 1629183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#define TYPE(Class, Base) 1630183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#define LEAF_TYPE(Class) \ 1631183700f494ec9b6701b6efe82bcb25f4c79ba561John McCalltemplate <> inline const Class##Type *Type::getAs() const { \ 16320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return dyn_cast<Class##Type>(CanonicalType); \ 1633d0370f59e79702ac908c81bf556519f91e9ca297John McCall} \ 1634d0370f59e79702ac908c81bf556519f91e9ca297John McCalltemplate <> inline const Class##Type *Type::castAs() const { \ 1635d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<Class##Type>(CanonicalType); \ 1636183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall} 1637183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#include "clang/AST/TypeNodes.def" 1638183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 1639183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// BuiltinType - This class is used for builtin types like 'int'. Builtin 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types are always canonical and have a literal name field. 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BuiltinType : public Type { 16435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Kind { 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Void, 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Bool, // This is bool and/or _Bool. 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Char_U, // This is 'char' for targets where char is unsigned. 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UChar, // This is explicitly qualified unsigned char. 16503f59c975aa5d047f7edd1b900b5e885c38af0ef7Chris Lattner WChar_U, // This is 'wchar_t' for C++, when unsigned. 1651f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16, // This is 'char16_t' for C++. 1652f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32, // This is 'char32_t' for C++. 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UShort, 16545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UInt, 16555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ULong, 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ULongLong, 16572df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner UInt128, // __uint128_t 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Char_S, // This is 'char' for targets where char is signed. 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SChar, // This is explicitly qualified signed char. 16613f59c975aa5d047f7edd1b900b5e885c38af0ef7Chris Lattner WChar_S, // This is 'wchar_t' for C++, when signed. 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Short, 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Int, 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Long, 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongLong, 16662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner Int128, // __int128_t 16671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16688e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor Float, Double, LongDouble, 16698e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 16706e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl NullPtr, // This is the type of C++0x 'nullptr'. 16716e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 1672864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'id' type. The user-visible 'id' 1673864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// type is a typedef of an ObjCObjectPointerType to an 1674864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// ObjCObjectType with this as its base. In fact, this only ever 1675864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// shows up in an AST as the base type of an ObjCObjectType. 1676864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCId, 1677864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1678864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'Class' type. The user-visible 1679864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// 'Class' type is a typedef of an ObjCObjectPointerType to an 1680864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// ObjCObjectType with this as its base. In fact, this only ever 1681864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// shows up in an AST as the base type of an ObjCObjectType. 1682864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCClass, 1683864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1684864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'SEL' type. The user-visible 'SEL' 1685864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// type is a typedef of a PointerType to this. 1686864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCSel, 1687864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 16882a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// This represents the type of an expression whose type is 16892a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// totally unknown, e.g. 'T::foo'. It is permitted for this to 16902a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// appear in situations where the structure of the type is 16912a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// theoretically deducible. 16922a984cad5ac3fdceeff2bd99daa7b90979313475John McCall Dependent, 16932a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 1694864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The type of an unresolved overload set. A placeholder type. 1695864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Expressions with this type have one of the following basic 1696864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// forms, with parentheses generally permitted: 1697864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # possibly qualified, not if an implicit access 1698864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # possibly qualified, not if an implicit access 1699864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &foo # possibly qualified, not if an implicit access 1700864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// x->foo # only if might be a static member function 1701864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &x->foo # only if might be a static member function 1702864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &Class::foo # when a pointer-to-member; sub-expr also has this type 1703864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// OverloadExpr::find can be used to analyze the expression. 17041de4d4e8cb2e9c88809fea8092bc6e835a5473d2John McCall Overload, 17051de4d4e8cb2e9c88809fea8092bc6e835a5473d2John McCall 1706864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The type of a bound C++ non-static member function. 1707864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// A placeholder type. Expressions with this type have one of the 1708864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// following basic forms: 1709864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # if an implicit access 1710864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// x->foo # if only contains non-static members 1711864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall BoundMember, 1712864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1713864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// __builtin_any_type. A placeholder type. Useful for clients 1714864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// like debuggers that don't know what type to give something. 1715864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Only a small number of operations are valid on expressions of 1716864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// unknown type, most notably explicit casts. 1717864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall UnknownAny 17185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 171971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinType(Kind K) 172235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(Builtin, QualType(), /*Dependent=*/(K == Dependent), 1723d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 1724d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*Unexpanded paramter pack=*/false) { 1725b870b88df784c2940efce448ebfaf54dece14666John McCall BuiltinTypeBits.Kind = K; 172671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 17271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1728b870b88df784c2940efce448ebfaf54dece14666John McCall Kind getKind() const { return static_cast<Kind>(BuiltinTypeBits.Kind); } 1729e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner const char *getName(const LangOptions &LO) const; 17301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1731bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1732bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1733bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 1734680523a91dd3351389667c8de17121ba7ae82673John McCall bool isInteger() const { 173571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Bool && getKind() <= Int128; 1736680523a91dd3351389667c8de17121ba7ae82673John McCall } 1737680523a91dd3351389667c8de17121ba7ae82673John McCall 1738680523a91dd3351389667c8de17121ba7ae82673John McCall bool isSignedInteger() const { 173971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Char_S && getKind() <= Int128; 1740680523a91dd3351389667c8de17121ba7ae82673John McCall } 1741680523a91dd3351389667c8de17121ba7ae82673John McCall 1742680523a91dd3351389667c8de17121ba7ae82673John McCall bool isUnsignedInteger() const { 174371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Bool && getKind() <= UInt128; 1744680523a91dd3351389667c8de17121ba7ae82673John McCall } 1745680523a91dd3351389667c8de17121ba7ae82673John McCall 1746680523a91dd3351389667c8de17121ba7ae82673John McCall bool isFloatingPoint() const { 174771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Float && getKind() <= LongDouble; 1748680523a91dd3351389667c8de17121ba7ae82673John McCall } 1749680523a91dd3351389667c8de17121ba7ae82673John McCall 1750864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Determines whether this type is a placeholder type, i.e. a type 1751864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// which cannot appear in arbitrary positions in a fully-formed 1752864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// expression. 17532a984cad5ac3fdceeff2bd99daa7b90979313475John McCall bool isPlaceholderType() const { 1754864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return getKind() >= Overload; 17552a984cad5ac3fdceeff2bd99daa7b90979313475John McCall } 17562a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Builtin; } 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BuiltinType *) { return true; } 17595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ComplexType - C99 6.2.5p11 - Complex values. This supports the C99 complex 17625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types (_Complex float etc) as well as the GCC integer complex extensions. 17635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ComplexType : public Type, public llvm::FoldingSetNode { 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ElementType; 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType(QualType Element, QualType CanonicalPtr) : 176735495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(Complex, CanonicalPtr, Element->isDependentType(), 1768d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Element->isVariablyModifiedType(), 1769d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Element->containsUnexpandedParameterPack()), 1770898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ElementType(Element) { 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 177360e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getElementType() const { return ElementType; } 17761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1777bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1778bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1779bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Profile(ID, getElementType()); 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Element) { 17845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Element.getAsOpaquePtr()); 17855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Complex; } 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ComplexType *) { return true; } 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1791075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// ParenType - Sugar for parentheses used when specifying types. 1792075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// 1793075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnaraclass ParenType : public Type, public llvm::FoldingSetNode { 1794075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType Inner; 1795075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1796075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara ParenType(QualType InnerType, QualType CanonType) : 1797075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Type(Paren, CanonType, InnerType->isDependentType(), 1798d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor InnerType->isVariablyModifiedType(), 1799d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor InnerType->containsUnexpandedParameterPack()), 1800075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Inner(InnerType) { 1801075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1802075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara friend class ASTContext; // ASTContext creates these. 1803075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1804075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnarapublic: 1805075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1806075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType getInnerType() const { return Inner; } 1807075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1808075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara bool isSugared() const { return true; } 1809075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType desugar() const { return getInnerType(); } 1810075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1811075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void Profile(llvm::FoldingSetNodeID &ID) { 1812075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Profile(ID, getInnerType()); 1813075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1814075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static void Profile(llvm::FoldingSetNodeID &ID, QualType Inner) { 1815075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Inner.Profile(ID); 1816075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1817075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1818075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static bool classof(const Type *T) { return T->getTypeClass() == Paren; } 1819075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static bool classof(const ParenType *) { return true; } 1820075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara}; 1821075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 182268694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar/// PointerType - C99 6.7.5.1 - Pointer Declarators. 1823bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner/// 182468694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbarclass PointerType : public Type, public llvm::FoldingSetNode { 1825bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner QualType PointeeType; 18265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType(QualType Pointee, QualType CanonicalPtr) : 182835495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(Pointer, CanonicalPtr, Pointee->isDependentType(), 1829d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1830d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack()), 183135495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor PointeeType(Pointee) { 18325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 183460e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 183768694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar QualType getPointeeType() const { return PointeeType; } 183868694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 1839bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1840bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1841bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 18425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 18435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Profile(ID, getPointeeType()); 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { 18465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Pointee.getAsOpaquePtr()); 18475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Pointer; } 18505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const PointerType *) { return true; } 18515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// BlockPointerType - pointer to a block type. 18545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// This type is to represent types syntactically represented as 18555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// "void (^)(int)", etc. Pointee is required to always be a function type. 18565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// 18575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffclass BlockPointerType : public Type, public llvm::FoldingSetNode { 18585618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType PointeeType; // Block is some kind of pointer type 18595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType(QualType Pointee, QualType CanonicalCls) : 186035495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(BlockPointer, CanonicalCls, Pointee->isDependentType(), 1861d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1862d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack()), 1863898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor PointeeType(Pointee) { 18645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff friend class ASTContext; // ASTContext creates these. 186660e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 18675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffpublic: 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the pointee type. Pointee is required to always be a function type. 18705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType getPointeeType() const { return PointeeType; } 18715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1872bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1873bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1874bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 18755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void Profile(llvm::FoldingSetNodeID &ID) { 18765618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Profile(ID, getPointeeType()); 18775618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { 18795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff ID.AddPointer(Pointee.getAsOpaquePtr()); 18805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == BlockPointer; 18845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff static bool classof(const BlockPointerType *) { return true; } 18865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff}; 18875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 18887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// ReferenceType - Base for LValueReferenceType and RValueReferenceType 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 189068694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbarclass ReferenceType : public Type, public llvm::FoldingSetNode { 189168694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar QualType PointeeType; 189268694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 18937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlprotected: 189454e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(TypeClass tc, QualType Referencee, QualType CanonicalRef, 189554e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) : 189635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(tc, CanonicalRef, Referencee->isDependentType(), 1897d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Referencee->isVariablyModifiedType(), 1898d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Referencee->containsUnexpandedParameterPack()), 1899d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor PointeeType(Referencee) 1900d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor { 1901b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBits.SpelledAsLValue = SpelledAsLValue; 1902b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBits.InnerRef = Referencee->isReferenceType(); 19035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 190460e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 19055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1906b870b88df784c2940efce448ebfaf54dece14666John McCall bool isSpelledAsLValue() const { return ReferenceTypeBits.SpelledAsLValue; } 1907b870b88df784c2940efce448ebfaf54dece14666John McCall bool isInnerRef() const { return ReferenceTypeBits.InnerRef; } 190873dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 190954e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType getPointeeTypeAsWritten() const { return PointeeType; } 191054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType getPointeeType() const { 191154e14c4db764c0636160d26c5bbf491637c83a76John McCall // FIXME: this might strip inner qualifiers; okay? 191254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *T = this; 191371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall while (T->isInnerRef()) 1914d0370f59e79702ac908c81bf556519f91e9ca297John McCall T = T->PointeeType->castAs<ReferenceType>(); 191554e14c4db764c0636160d26c5bbf491637c83a76John McCall return T->PointeeType; 191654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 191768694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 191971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Profile(ID, PointeeType, isSpelledAsLValue()); 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 192154e14c4db764c0636160d26c5bbf491637c83a76John McCall static void Profile(llvm::FoldingSetNodeID &ID, 192254e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Referencee, 192354e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) { 19245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Referencee.getAsOpaquePtr()); 192554e14c4db764c0636160d26c5bbf491637c83a76John McCall ID.AddBoolean(SpelledAsLValue); 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == LValueReference || 19307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl T->getTypeClass() == RValueReference; 19317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ReferenceType *) { return true; } 19337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl}; 19347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 19357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// LValueReferenceType - C++ [dcl.ref] - Lvalue reference 19367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// 19377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlclass LValueReferenceType : public ReferenceType { 193854e14c4db764c0636160d26c5bbf491637c83a76John McCall LValueReferenceType(QualType Referencee, QualType CanonicalRef, 193954e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) : 194054e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(LValueReference, Referencee, CanonicalRef, SpelledAsLValue) 194154e14c4db764c0636160d26c5bbf491637c83a76John McCall {} 19427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl friend class ASTContext; // ASTContext creates these 19437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlpublic: 1944bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1945bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1946bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 19477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == LValueReference; 19497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const LValueReferenceType *) { return true; } 19517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl}; 19527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 19537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// RValueReferenceType - C++0x [dcl.ref] - Rvalue reference 19547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// 19557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlclass RValueReferenceType : public ReferenceType { 19567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType(QualType Referencee, QualType CanonicalRef) : 195754e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(RValueReference, Referencee, CanonicalRef, false) { 19587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl friend class ASTContext; // ASTContext creates these 19607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlpublic: 1961bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1962bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1963bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 19647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == RValueReference; 19667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const RValueReferenceType *) { return true; } 1968f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl}; 1969f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1970f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// MemberPointerType - C++ 8.3.3 - Pointers to members 1971f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// 1972f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlclass MemberPointerType : public Type, public llvm::FoldingSetNode { 1973f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType PointeeType; 1974f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl /// The class of which the pointee is a member. Must ultimately be a 1975f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl /// RecordType, but could be a typedef or a template parameter too. 1976f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *Class; 1977f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1978f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType(QualType Pointee, const Type *Cls, QualType CanonicalPtr) : 1979f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Type(MemberPointer, CanonicalPtr, 198035495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Cls->isDependentType() || Pointee->isDependentType(), 1981d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1982d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor (Cls->containsUnexpandedParameterPack() || 1983d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack())), 1984f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl PointeeType(Pointee), Class(Cls) { 1985f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1986f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl friend class ASTContext; // ASTContext creates these. 198760e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1988f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlpublic: 1989f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType getPointeeType() const { return PointeeType; } 1990f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 19910bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// Returns true if the member type (i.e. the pointee type) is a 19920bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// function type rather than a data-member type. 19930bab0cdab751248ca389a5592bcb70eac5d39260John McCall bool isMemberFunctionPointer() const { 19940bab0cdab751248ca389a5592bcb70eac5d39260John McCall return PointeeType->isFunctionProtoType(); 19950bab0cdab751248ca389a5592bcb70eac5d39260John McCall } 19960bab0cdab751248ca389a5592bcb70eac5d39260John McCall 19970bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// Returns true if the member type (i.e. the pointee type) is a 19980bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// data type rather than a function type. 19990bab0cdab751248ca389a5592bcb70eac5d39260John McCall bool isMemberDataPointer() const { 20000bab0cdab751248ca389a5592bcb70eac5d39260John McCall return !PointeeType->isFunctionProtoType(); 20010bab0cdab751248ca389a5592bcb70eac5d39260John McCall } 20020bab0cdab751248ca389a5592bcb70eac5d39260John McCall 2003f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *getClass() const { return Class; } 2004f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2005bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2006bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2007bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2008f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void Profile(llvm::FoldingSetNodeID &ID) { 2009f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Profile(ID, getPointeeType(), getClass()); 2010f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2011f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee, 2012f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *Class) { 2013f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ID.AddPointer(Pointee.getAsOpaquePtr()); 2014f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ID.AddPointer(Class); 2015f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2016f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2017f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static bool classof(const Type *T) { 2018f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return T->getTypeClass() == MemberPointer; 2019f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2020f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static bool classof(const MemberPointerType *) { return true; } 20215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArrayType - C99 6.7.5.2 - Array Declarators. 20245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 20252e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass ArrayType : public Type, public llvm::FoldingSetNode { 20265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ArraySizeModifier - Capture whether this is a normal array (e.g. int X[4]) 2028898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// an array with a static size (e.g. int X[static 4]), or an array 2029898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// with a star size (e.g. int X[*]). 2030898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// 'static' is only allowed on function parameters. 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ArraySizeModifier { 20325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Normal, Static, Star 20335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 20345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 2035fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff /// ElementType - The element type of the array. 2036fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff QualType ElementType; 20371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2038fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffprotected: 2039898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // C++ [temp.dep.type]p1: 2040898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // A type is dependent if it is... 2041898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // - an array type constructed from any dependent type or whose 2042898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // size is specified by a constant expression that is 2043898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // value-dependent, 2044c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType(TypeClass tc, QualType et, QualType can, 2045d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ArraySizeModifier sm, unsigned tq, 2046d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 204735495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(tc, can, et->isDependentType() || tc == DependentSizedArray, 2048d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor (tc == VariableArray || et->isVariablyModifiedType()), 2049d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack), 205071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ElementType(et) { 2051b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBits.IndexTypeQuals = tq; 2052b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBits.SizeModifier = sm; 205371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2054898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2055fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff friend class ASTContext; // ASTContext creates these. 205660e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 2057fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffpublic: 2058fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff QualType getElementType() const { return ElementType; } 2059ca63fa00786e51c207c829f4182f11a6c6b552beTed Kremenek ArraySizeModifier getSizeModifier() const { 2060b870b88df784c2940efce448ebfaf54dece14666John McCall return ArraySizeModifier(ArrayTypeBits.SizeModifier); 2061ca63fa00786e51c207c829f4182f11a6c6b552beTed Kremenek } 20620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers getIndexTypeQualifiers() const { 206371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Qualifiers::fromCVRMask(getIndexTypeCVRQualifiers()); 206471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 206571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall unsigned getIndexTypeCVRQualifiers() const { 2066b870b88df784c2940efce448ebfaf54dece14666John McCall return ArrayTypeBits.IndexTypeQuals; 20670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 20681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2069fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const Type *T) { 2070fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff return T->getTypeClass() == ConstantArray || 2071c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman T->getTypeClass() == VariableArray || 2072898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor T->getTypeClass() == IncompleteArray || 2073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor T->getTypeClass() == DependentSizedArray; 2074fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2075fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const ArrayType *) { return true; } 2076fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff}; 2077fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 20787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// ConstantArrayType - This class represents the canonical version of 20797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// C arrays with a specified constant size. For example, the canonical 20807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// type for 'int A[4 + 4*100]' is a ConstantArrayType where the element 20817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// type is 'int' and the size is 404. 20822e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass ConstantArrayType : public ArrayType { 2083fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff llvm::APInt Size; // Allows us to unique the type. 20841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20850be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType(QualType et, QualType can, const llvm::APInt &size, 2086c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArraySizeModifier sm, unsigned tq) 2087d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(ConstantArray, et, can, sm, tq, 2088d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()), 20897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Size(size) {} 20907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregorprotected: 20917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayType(TypeClass tc, QualType et, QualType can, 20927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &size, ArraySizeModifier sm, unsigned tq) 2093d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(tc, et, can, sm, tq, et->containsUnexpandedParameterPack()), 2094d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Size(size) {} 2095fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff friend class ASTContext; // ASTContext creates these. 2096fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffpublic: 2097c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const llvm::APInt &getSize() const { return Size; } 2098bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2099bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2100bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 21012767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 21022767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// \brief Determine the number of bits required to address a member of 21032767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // an array with the given element type and number of elements. 21042767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor static unsigned getNumAddressingBits(ASTContext &Context, 21052767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor QualType ElementType, 21062767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor const llvm::APInt &NumElements); 21072767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 21082767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// \brief Determine the maximum number of active bits that an array's size 21092767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// can require, which limits the maximum size of the array. 21102767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor static unsigned getMaxSizeBits(ASTContext &Context); 21112767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 2112fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff void Profile(llvm::FoldingSetNodeID &ID) { 21131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Profile(ID, getElementType(), getSize(), 21140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getSizeModifier(), getIndexTypeCVRQualifiers()); 2115fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2116fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static void Profile(llvm::FoldingSetNodeID &ID, QualType ET, 21170be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner const llvm::APInt &ArraySize, ArraySizeModifier SizeMod, 21180be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner unsigned TypeQuals) { 2119fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ID.AddPointer(ET.getAsOpaquePtr()); 2120fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ID.AddInteger(ArraySize.getZExtValue()); 21210be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(SizeMod); 21220be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(TypeQuals); 2123fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 21247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor static bool classof(const Type *T) { 212546a617a792bfab0d9b1e057371ea3b9540802226John McCall return T->getTypeClass() == ConstantArray; 2126fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2127fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const ConstantArrayType *) { return true; } 2128fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff}; 2129fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 2130da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// IncompleteArrayType - This class represents C arrays with an unspecified 2131da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// size. For example 'int A[]' has an IncompleteArrayType where the element 2132da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// type is 'int' and the size is unspecified. 2133c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedmanclass IncompleteArrayType : public ArrayType { 21347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 2135c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType(QualType et, QualType can, 21367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArraySizeModifier sm, unsigned tq) 2137d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(IncompleteArray, et, can, sm, tq, 2138d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()) {} 2139c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman friend class ASTContext; // ASTContext creates these. 2140c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedmanpublic: 2141bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2142bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2143bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 21451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == IncompleteArray; 2146c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 2147c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman static bool classof(const IncompleteArrayType *) { return true; } 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2149c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman friend class StmtIteratorBase; 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2151c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void Profile(llvm::FoldingSetNodeID &ID) { 21520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Profile(ID, getElementType(), getSizeModifier(), 21530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getIndexTypeCVRQualifiers()); 2154c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 21551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21560be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner static void Profile(llvm::FoldingSetNodeID &ID, QualType ET, 21570be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ArraySizeModifier SizeMod, unsigned TypeQuals) { 2158c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ID.AddPointer(ET.getAsOpaquePtr()); 21590be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(SizeMod); 21600be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(TypeQuals); 2161c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 2162c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman}; 2163c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 2164da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// VariableArrayType - This class represents C arrays with a specified size 2165da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// which is not an integer-constant-expression. For example, 'int s[x+foo()]'. 2166da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// Since the size expression is an arbitrary expression, we store it as such. 2167da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 2168da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// Note: VariableArrayType's aren't uniqued (since the expressions aren't) and 2169da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// should not be: two lexically equivalent variable array types could mean 2170da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// different things, for example, these variables do not have the same type 2171da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// dynamically: 2172da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 2173da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// void foo(int x) { 2174da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// int Y[x]; 2175da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// ++x; 2176da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// int Z[x]; 2177da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// } 2178da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 21792e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass VariableArrayType : public ArrayType { 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// SizeExpr - An assignment expression. VLA's are only permitted within 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// a function block. 2182b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek Stmt *SizeExpr; 21837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor /// Brackets - The left and right array brackets. 21847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets; 21857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 2186c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff VariableArrayType(QualType et, QualType can, Expr *e, 21877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArraySizeModifier sm, unsigned tq, 21887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange brackets) 2189d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(VariableArray, et, can, sm, tq, 2190d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()), 21917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SizeExpr((Stmt*) e), Brackets(brackets) {} 21925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 21934b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek 21945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getSizeExpr() const { 2196b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek // We use C-style casts instead of cast<> here because we do not wish 2197b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek // to have a dependency of Type.h on Stmt.h/Expr.h. 2198b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek return (Expr*) SizeExpr; 2199b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek } 22007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange getBracketsRange() const { return Brackets; } 22017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } 22027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } 22031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2204bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2205bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2206bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 22071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 22081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == VariableArray; 22095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2210fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const VariableArrayType *) { return true; } 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 221292866e2e90f6d93fb95e25a7ac4438e239d89ce6Ted Kremenek friend class StmtIteratorBase; 22131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22142bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID) { 2215fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner assert(0 && "Cannot unique VariableArrayTypes."); 22162bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 22175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2219898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// DependentSizedArrayType - This type represents an array type in 2220898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// C++ whose size is a value-dependent expression. For example: 2221cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// 2222cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// \code 22231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// template<typename T, int Size> 2224898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// class array { 2225898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// T data[Size]; 2226898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// }; 2227cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// \endcode 2228cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// 2229898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// For these types, we won't actually know what the array bound is 2230898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// until template instantiation occurs, at which point this will 2231898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// become either a ConstantArrayType or a VariableArrayType. 2232898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorclass DependentSizedArrayType : public ArrayType { 22334ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 22341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2235cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// \brief An assignment expression that will instantiate to the 2236898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// size of the array. 2237cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// 2238cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// The expression itself might be NULL, in which case the array 2239cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// type will have its size deduced from an initializer. 2240898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Stmt *SizeExpr; 2241cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 22427e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor /// Brackets - The left and right array brackets. 22437e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets; 22441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22454ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentSizedArrayType(const ASTContext &Context, QualType et, QualType can, 224604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Expr *e, ArraySizeModifier sm, unsigned tq, 2247d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor SourceRange brackets); 2248d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2249898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor friend class ASTContext; // ASTContext creates these. 2250898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2251898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorpublic: 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getSizeExpr() const { 2253898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // We use C-style casts instead of cast<> here because we do not wish 2254898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // to have a dependency of Type.h on Stmt.h/Expr.h. 2255898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return (Expr*) SizeExpr; 2256898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 22577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange getBracketsRange() const { return Brackets; } 22587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } 22597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } 22601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2261bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2262bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2263bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 22651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == DependentSizedArray; 2266898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 2267898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool classof(const DependentSizedArrayType *) { return true; } 22681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2269898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor friend class StmtIteratorBase; 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2272898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 22731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Profile(ID, Context, getElementType(), 22740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getSizeModifier(), getIndexTypeCVRQualifiers(), getSizeExpr()); 2275898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 22761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22774ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 22781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType ET, ArraySizeModifier SizeMod, 227904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor unsigned TypeQuals, Expr *E); 2280898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor}; 2281898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2282f6ddb737cb882ffbf0b75a9abd50b930cc2b9068Douglas Gregor/// DependentSizedExtVectorType - This type represent an extended vector type 22839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// where either the type or size is dependent. For example: 22849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// @code 22859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// template<typename T, int Size> 22869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// class vector { 22879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// typedef T __attribute__((ext_vector_type(Size))) type; 22889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// } 22899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// @endcode 22902ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregorclass DependentSizedExtVectorType : public Type, public llvm::FoldingSetNode { 22914ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 22929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr; 22939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor /// ElementType - The element type of the array. 22949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType ElementType; 22959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation loc; 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22974ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentSizedExtVectorType(const ASTContext &Context, QualType ElementType, 2298d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType can, Expr *SizeExpr, SourceLocation loc); 2299d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 23009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor friend class ASTContext; 23019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 23029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorpublic: 23032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor Expr *getSizeExpr() const { return SizeExpr; } 23049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType getElementType() const { return ElementType; } 23059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation getAttributeLoc() const { return loc; } 23069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2307bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2308bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2309bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 23101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == DependentSizedExtVector; 23129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const DependentSizedExtVectorType *) { return true; } 23142ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor 23152ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 23162ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor Profile(ID, Context, getElementType(), getSizeExpr()); 23172ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23194ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 23202ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType ElementType, Expr *SizeExpr); 23219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor}; 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 232473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// VectorType - GCC generic vector type. This type is created using 23251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// __attribute__((vector_size(n)), where "n" specifies the vector size in 232682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson/// bytes; or from an Altivec __vector or vector declaration. 232782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson/// Since the constructor takes the number of vector elements, the 232873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// client is responsible for converting the size into the number of elements. 23295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass VectorType : public Type, public llvm::FoldingSetNode { 2330788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerpublic: 2331e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson enum VectorKind { 2332e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson GenericVector, // not a target-specific vector type 2333e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecVector, // is AltiVec vector 2334e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecPixel, // is AltiVec 'vector Pixel' 2335e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecBool, // is AltiVec 'vector bool ...' 2336491328c90c00ecad6ad27fa0ab3cdf9195a4a820Bob Wilson NeonVector, // is ARM Neon vector 2337491328c90c00ecad6ad27fa0ab3cdf9195a4a820Bob Wilson NeonPolyVector // is ARM Neon polynomial vector 2338788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner }; 233973322924127c873c13101b705dd823f5539ffa5fSteve Naroffprotected: 23405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ElementType - The element type of the vector. 23415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ElementType; 23421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 234382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(QualType vecType, unsigned nElements, QualType canonType, 2344d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor VectorKind vecKind); 234535495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 23461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType(TypeClass tc, QualType vecType, unsigned nElements, 2347d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType canonType, VectorKind vecKind); 2348d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 23495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 235060e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 23515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getElementType() const { return ElementType; } 2354b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getNumElements() const { return VectorTypeBits.NumElements; } 23555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2356bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2357bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2358bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2359e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorKind getVectorKind() const { 2360e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson return VectorKind(VectorTypeBits.VecKind); 236171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2362788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner 23635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 236471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Profile(ID, getElementType(), getNumElements(), 2365e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson getTypeClass(), getVectorKind()); 23665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, QualType ElementType, 236882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned NumElements, TypeClass TypeClass, 2369e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorKind VecKind) { 23705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(ElementType.getAsOpaquePtr()); 23715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddInteger(NumElements); 237273322924127c873c13101b705dd823f5539ffa5fSteve Naroff ID.AddInteger(TypeClass); 2373e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson ID.AddInteger(VecKind); 237473322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 23750b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 23771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == Vector || T->getTypeClass() == ExtVector; 23785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const VectorType *) { return true; } 23805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2382213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// ExtVectorType - Extended vector type. This type is created using 2383213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// __attribute__((ext_vector_type(n)), where "n" is the number of elements. 2384213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// Unlike vector_size, ext_vector_type is only allowed on typedef's. This 2385fcac0fff877a461bc5d5a57e6c6727a4c819d95aSteve Naroff/// class enables syntactic extensions, like Vector Components for accessing 2386fcac0fff877a461bc5d5a57e6c6727a4c819d95aSteve Naroff/// points, colors, and textures (modeled after OpenGL Shading Language). 2387213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begemanclass ExtVectorType : public VectorType { 2388213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType(QualType vecType, unsigned nElements, QualType canonType) : 2389e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType(ExtVector, vecType, nElements, canonType, GenericVector) {} 239073322924127c873c13101b705dd823f5539ffa5fSteve Naroff friend class ASTContext; // ASTContext creates these. 239173322924127c873c13101b705dd823f5539ffa5fSteve Naroffpublic: 239288dca0464804b8b26ae605f89784c927e8493dddChris Lattner static int getPointAccessorIdx(char c) { 239388dca0464804b8b26ae605f89784c927e8493dddChris Lattner switch (c) { 239488dca0464804b8b26ae605f89784c927e8493dddChris Lattner default: return -1; 239588dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'x': return 0; 239688dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'y': return 1; 239788dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'z': return 2; 239888dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'w': return 3; 239988dca0464804b8b26ae605f89784c927e8493dddChris Lattner } 2400e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 2401353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman static int getNumericAccessorIdx(char c) { 240288dca0464804b8b26ae605f89784c927e8493dddChris Lattner switch (c) { 2403353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman default: return -1; 2404353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '0': return 0; 2405353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '1': return 1; 2406353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '2': return 2; 2407353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '3': return 3; 2408353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '4': return 4; 2409353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '5': return 5; 2410353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '6': return 6; 2411353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '7': return 7; 2412353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '8': return 8; 2413353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '9': return 9; 2414131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'A': 2415353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'a': return 10; 2416131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'B': 2417353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'b': return 11; 2418131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'C': 2419353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'c': return 12; 2420131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'D': 2421353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'd': return 13; 2422131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'E': 2423353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'e': return 14; 2424131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'F': 2425353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'f': return 15; 242688dca0464804b8b26ae605f89784c927e8493dddChris Lattner } 2427e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2429b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner static int getAccessorIdx(char c) { 2430b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner if (int idx = getPointAccessorIdx(c)+1) return idx-1; 2431353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman return getNumericAccessorIdx(c); 2432b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner } 24331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 243488dca0464804b8b26ae605f89784c927e8493dddChris Lattner bool isAccessorWithinNumElements(char c) const { 2435b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner if (int idx = getAccessorIdx(c)+1) 243671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return unsigned(idx-1) < getNumElements(); 243788dca0464804b8b26ae605f89784c927e8493dddChris Lattner return false; 2438e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 2439bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2440bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2441bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 24421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 24431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ExtVector; 244473322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 2445213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman static bool classof(const ExtVectorType *) { return true; } 244673322924127c873c13101b705dd823f5539ffa5fSteve Naroff}; 244773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 24485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// FunctionType - C99 6.7.5.3 - Function Declarators. This is the common base 244972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// class of FunctionNoProtoType and FunctionProtoType. 24505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FunctionType : public Type { 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The type returned by the function. 24535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ResultType; 2454264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2455264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola public: 2456373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// ExtInfo - A class which abstracts out some details necessary for 2457373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// making a call. 2458373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// 2459373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// It is not actually used directly for storing this information in 2460373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// a FunctionType, although FunctionType does currently use the 2461373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// same bit-pattern. 2462373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// 2463075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // If you add a field (say Foo), other than the obvious places (both, 2464075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // constructors, compile failures), what you need to update is 2465075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // * Operator== 2466425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * getFoo 2467425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * withFoo 2468425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * functionType. Add Foo, getFoo. 2469425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * ASTContext::getFooType 2470425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * ASTContext::mergeFunctionTypes 2471425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * FunctionNoProtoType::Profile 2472425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * FunctionProtoType::Profile 2473425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * TypePrinter::PrintFunctionProto 24743c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl // * AST read and write 2475425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * Codegen 2476264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola class ExtInfo { 24777e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor // Feel free to rearrange or add bits, but if you go over 8, 2478373920bd733b1d28fe7bf209945a62eb9248d948John McCall // you'll need to adjust both the Bits field below and 2479373920bd733b1d28fe7bf209945a62eb9248d948John McCall // Type::FunctionTypeBitfields. 2480373920bd733b1d28fe7bf209945a62eb9248d948John McCall 24817e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor // | CC |noreturn|produces|regparm| 24827e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor // |0 .. 2| 3 | 4 | 5 .. 7| 24837e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor // 24847e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor // regparm is either 0 (no regparm attribute) or the regparm value+1. 2485b870b88df784c2940efce448ebfaf54dece14666John McCall enum { CallConvMask = 0x7 }; 2486b870b88df784c2940efce448ebfaf54dece14666John McCall enum { NoReturnMask = 0x8 }; 2487f85e193739c953358c865005855253af4f68a497John McCall enum { ProducesResultMask = 0x10 }; 2488f85e193739c953358c865005855253af4f68a497John McCall enum { RegParmMask = ~(CallConvMask | NoReturnMask | ProducesResultMask), 24897e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor RegParmOffset = 5 }; // Assumed to be the last field 2490b870b88df784c2940efce448ebfaf54dece14666John McCall 2491f85e193739c953358c865005855253af4f68a497John McCall uint16_t Bits; 249271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 2493f85e193739c953358c865005855253af4f68a497John McCall ExtInfo(unsigned Bits) : Bits(static_cast<uint16_t>(Bits)) {} 249471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 249571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall friend class FunctionType; 249671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 2497264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola public: 2498264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Constructor with no defaults. Use this when you know that you 24993c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl // have all the elements (when reading an AST file for example). 2500f85e193739c953358c865005855253af4f68a497John McCall ExtInfo(bool noReturn, bool hasRegParm, unsigned regParm, CallingConv cc, 2501f85e193739c953358c865005855253af4f68a497John McCall bool producesResult) { 25027e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor assert((!hasRegParm || regParm < 7) && "Invalid regparm value"); 2503b870b88df784c2940efce448ebfaf54dece14666John McCall Bits = ((unsigned) cc) | 2504b870b88df784c2940efce448ebfaf54dece14666John McCall (noReturn ? NoReturnMask : 0) | 2505f85e193739c953358c865005855253af4f68a497John McCall (producesResult ? ProducesResultMask : 0) | 25067e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor (hasRegParm ? ((regParm + 1) << RegParmOffset) : 0); 250771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2508264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2509264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Constructor with all defaults. Use when for example creating a 2510264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // function know to use defaults. 251171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ExtInfo() : Bits(0) {} 2512264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2513b870b88df784c2940efce448ebfaf54dece14666John McCall bool getNoReturn() const { return Bits & NoReturnMask; } 2514f85e193739c953358c865005855253af4f68a497John McCall bool getProducesResult() const { return Bits & ProducesResultMask; } 25157e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor bool getHasRegParm() const { return (Bits >> RegParmOffset) != 0; } 25167e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor unsigned getRegParm() const { 25177e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor unsigned RegParm = Bits >> RegParmOffset; 25187e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor if (RegParm > 0) 25197e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor --RegParm; 25207e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor return RegParm; 25217e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor } 2522b870b88df784c2940efce448ebfaf54dece14666John McCall CallingConv getCC() const { return CallingConv(Bits & CallConvMask); } 2523264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 252471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall bool operator==(ExtInfo Other) const { 252571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Bits == Other.Bits; 2526264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 252771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall bool operator!=(ExtInfo Other) const { 252871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Bits != Other.Bits; 2529264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2530264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2531264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Note that we don't have setters. That is by design, use 2532264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // the following with methods instead of mutating these objects. 2533264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2534264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExtInfo withNoReturn(bool noReturn) const { 253571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall if (noReturn) 253671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return ExtInfo(Bits | NoReturnMask); 253771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall else 253871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return ExtInfo(Bits & ~NoReturnMask); 2539425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 2540425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2541f85e193739c953358c865005855253af4f68a497John McCall ExtInfo withProducesResult(bool producesResult) const { 2542f85e193739c953358c865005855253af4f68a497John McCall if (producesResult) 2543f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo(Bits | ProducesResultMask); 2544f85e193739c953358c865005855253af4f68a497John McCall else 2545f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo(Bits & ~ProducesResultMask); 2546f85e193739c953358c865005855253af4f68a497John McCall } 2547f85e193739c953358c865005855253af4f68a497John McCall 2548425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola ExtInfo withRegParm(unsigned RegParm) const { 25497e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor assert(RegParm < 7 && "Invalid regparm value"); 2550f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo((Bits & ~RegParmMask) | 25517e47e1e7e6a2b83d903c97129f27e92f584c3dc2Douglas Gregor ((RegParm + 1) << RegParmOffset)); 2552264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2553264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2554264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExtInfo withCallingConv(CallingConv cc) const { 2555b870b88df784c2940efce448ebfaf54dece14666John McCall return ExtInfo((Bits & ~CallConvMask) | (unsigned) cc); 2556264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2557264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2558e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall void Profile(llvm::FoldingSetNodeID &ID) const { 255971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ID.AddInteger(Bits); 256071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2561264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola }; 2562264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 25635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 2564e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType(TypeClass tc, QualType res, bool variadic, 2565c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor unsigned typeQuals, RefQualifierKind RefQualifier, 2566c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor QualType Canonical, bool Dependent, 2567d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool VariablyModified, bool ContainsUnexpandedParameterPack, 2568d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ExtInfo Info) 2569d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, Canonical, Dependent, VariablyModified, 2570d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack), 2571d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ResultType(res) { 2572b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBits.ExtInfo = Info.Bits; 2573e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionTypeBits.Variadic = variadic; 2574b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBits.TypeQuals = typeQuals; 2575c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor FunctionTypeBits.RefQualifier = static_cast<unsigned>(RefQualifier); 257671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2577e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall bool isVariadic() const { return FunctionTypeBits.Variadic; } 2578b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getTypeQuals() const { return FunctionTypeBits.TypeQuals; } 2579c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2580c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind getRefQualifier() const { 2581c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor return static_cast<RefQualifierKind>(FunctionTypeBits.RefQualifier); 2582c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2583c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getResultType() const { return ResultType; } 2587a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman 2588a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman bool getHasRegParm() const { return getExtInfo().getHasRegParm(); } 2589b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getRegParmType() const { return getExtInfo().getRegParm(); } 2590b870b88df784c2940efce448ebfaf54dece14666John McCall bool getNoReturnAttr() const { return getExtInfo().getNoReturn(); } 2591b870b88df784c2940efce448ebfaf54dece14666John McCall CallingConv getCallConv() const { return getExtInfo().getCC(); } 2592b870b88df784c2940efce448ebfaf54dece14666John McCall ExtInfo getExtInfo() const { return ExtInfo(FunctionTypeBits.ExtInfo); } 25935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25945291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// \brief Determine the type of an expression that calls a function of 25955291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// this type. 25965291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor QualType getCallResultType(ASTContext &Context) const { 25976398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor return getResultType().getNonLValueExprType(Context); 25985291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 25995291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 260004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall static llvm::StringRef getNameForCallConv(CallingConv CC); 260104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 26025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 26035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionNoProto || 26045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getTypeClass() == FunctionProto; 26055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FunctionType *) { return true; } 26075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 260972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// FunctionNoProtoType - Represents a K&R-style 'int foo()' function, which has 26105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// no information available about its arguments. 261172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass FunctionNoProtoType : public FunctionType, public llvm::FoldingSetNode { 261271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall FunctionNoProtoType(QualType Result, QualType Canonical, ExtInfo Info) 2613c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FunctionType(FunctionNoProto, Result, false, 0, RQ_None, Canonical, 261435495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor /*Dependent=*/false, Result->isVariablyModifiedType(), 2615d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false, Info) {} 2616d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 261860e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 26195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 26205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // No additional state past what FunctionType provides. 26211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2622bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2623bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2624bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 26255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 2626264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Profile(ID, getResultType(), getExtInfo()); 26275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26282455636163fdd18581d7fdae816433f886d88213Mike Stump static void Profile(llvm::FoldingSetNodeID &ID, QualType ResultType, 262971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ExtInfo Info) { 263071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Info.Profile(ID); 26315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(ResultType.getAsOpaquePtr()); 26325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 26355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionNoProto; 26365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 263772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const FunctionNoProtoType *) { return true; } 26385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 264072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// FunctionProtoType - Represents a prototype with argument type info, e.g. 26415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'int foo(int)' or 'int foo(void)'. 'void' is represented as having no 2642465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// arguments, not as having a single void argument. Such a type can have an 2643465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// exception specification, but this specification is not part of the canonical 2644465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// type. 264572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass FunctionProtoType : public FunctionType, public llvm::FoldingSetNode { 2646e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCallpublic: 2647e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall /// ExtProtoInfo - Extra information about a function prototype. 2648e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall struct ExtProtoInfo { 2649e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo() : 26508b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl Variadic(false), ExceptionSpecType(EST_None), TypeQuals(0), 2651f85e193739c953358c865005855253af4f68a497John McCall RefQualifier(RQ_None), NumExceptions(0), Exceptions(0), NoexceptExpr(0), 2652f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments(0) {} 2653e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 2654e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo ExtInfo; 2655e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall bool Variadic; 26568b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl ExceptionSpecificationType ExceptionSpecType; 2657e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned char TypeQuals; 2658c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier; 2659e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned NumExceptions; 2660e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall const QualType *Exceptions; 26618b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl Expr *NoexceptExpr; 2662f85e193739c953358c865005855253af4f68a497John McCall const bool *ConsumedArguments; 2663e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall }; 2664e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 2665e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCallprivate: 2666d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Determine whether there are any argument types that 2667d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain an unexpanded parameter pack. 2668d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor static bool containsAnyUnexpandedParameterPack(const QualType *ArgArray, 2669d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor unsigned numArgs) { 2670d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor for (unsigned Idx = 0; Idx < numArgs; ++Idx) 2671d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor if (ArgArray[Idx]->containsUnexpandedParameterPack()) 2672d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return true; 2673d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2674d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return false; 2675d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 2676d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2677e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType(QualType result, const QualType *args, unsigned numArgs, 26788026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl QualType canonical, const ExtProtoInfo &epi); 2679465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// NumArgs - The number of arguments this function has, not counting '...'. 2681f85e193739c953358c865005855253af4f68a497John McCall unsigned NumArgs : 19; 2682465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2683465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// NumExceptions - The number of types in the exception spec, if any. 268460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl unsigned NumExceptions : 9; 2685465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 268660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// ExceptionSpecType - The type of exception specification this function has. 268760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl unsigned ExceptionSpecType : 3; 2688465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2689f85e193739c953358c865005855253af4f68a497John McCall /// HasAnyConsumedArgs - Whether this function has any consumed arguments. 2690f85e193739c953358c865005855253af4f68a497John McCall unsigned HasAnyConsumedArgs : 1; 2691f85e193739c953358c865005855253af4f68a497John McCall 2692942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner /// ArgInfo - There is an variable size array after the class in memory that 2693942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner /// holds the argument types. 2694465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2695465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// Exceptions - There is another variable size array after ArgInfo that 2696465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// holds the exception types. 2697465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 269860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// NoexceptExpr - Instead of Exceptions, there may be a single Expr* pointing 269960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// to the expression in the noexcept() specifier. 270060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2701f85e193739c953358c865005855253af4f68a497John McCall /// ConsumedArgs - A variable size array, following Exceptions 2702f85e193739c953358c865005855253af4f68a497John McCall /// and of length NumArgs, holding flags indicating which arguments 2703f85e193739c953358c865005855253af4f68a497John McCall /// are consumed. This only appears if HasAnyConsumedArgs is true. 2704f85e193739c953358c865005855253af4f68a497John McCall 27055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 27064b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek 2707f85e193739c953358c865005855253af4f68a497John McCall const bool *getConsumedArgsBuffer() const { 2708f85e193739c953358c865005855253af4f68a497John McCall assert(hasAnyConsumedArgs()); 2709f85e193739c953358c865005855253af4f68a497John McCall 2710f85e193739c953358c865005855253af4f68a497John McCall // Find the end of the exceptions. 2711f85e193739c953358c865005855253af4f68a497John McCall Expr * const *eh_end = reinterpret_cast<Expr * const *>(arg_type_end()); 2712f85e193739c953358c865005855253af4f68a497John McCall if (getExceptionSpecType() != EST_ComputedNoexcept) 2713f85e193739c953358c865005855253af4f68a497John McCall eh_end += NumExceptions; 2714f85e193739c953358c865005855253af4f68a497John McCall else 2715f85e193739c953358c865005855253af4f68a497John McCall eh_end += 1; // NoexceptExpr 2716f85e193739c953358c865005855253af4f68a497John McCall 2717f85e193739c953358c865005855253af4f68a497John McCall return reinterpret_cast<const bool*>(eh_end); 2718f85e193739c953358c865005855253af4f68a497John McCall } 2719f85e193739c953358c865005855253af4f68a497John McCall 27205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 27225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getArgType(unsigned i) const { 27235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(i < NumArgs && "Invalid argument number!"); 2724942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner return arg_type_begin()[i]; 27255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2726465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2727e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo getExtProtoInfo() const { 2728e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo EPI; 2729e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = getExtInfo(); 2730e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = isVariadic(); 273160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.ExceptionSpecType = getExceptionSpecType(); 2732e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = static_cast<unsigned char>(getTypeQuals()); 2733c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = getRefQualifier(); 273460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EPI.ExceptionSpecType == EST_Dynamic) { 273560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NumExceptions = NumExceptions; 273660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.Exceptions = exception_begin(); 273760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } else if (EPI.ExceptionSpecType == EST_ComputedNoexcept) { 273860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NoexceptExpr = getNoexceptExpr(); 273960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 2740f85e193739c953358c865005855253af4f68a497John McCall if (hasAnyConsumedArgs()) 2741f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = getConsumedArgsBuffer(); 2742e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return EPI; 2743e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 2744e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 274560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Get the kind of exception specification on this function. 274660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl ExceptionSpecificationType getExceptionSpecType() const { 274760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return static_cast<ExceptionSpecificationType>(ExceptionSpecType); 274860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 274960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Return whether this function has any kind of exception spec. 275060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasExceptionSpec() const { 275160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return getExceptionSpecType() != EST_None; 275260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 275360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Return whether this function has a dynamic (throw) exception spec. 275460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasDynamicExceptionSpec() const { 275560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return isDynamicExceptionSpec(getExceptionSpecType()); 275660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 2757fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// \brief Return whether this function has a noexcept exception spec. 275860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasNoexceptExceptionSpec() const { 275960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return isNoexceptExceptionSpec(getExceptionSpecType()); 276060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 276160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Result type of getNoexceptSpec(). 276260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl enum NoexceptResult { 276360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_NoNoexcept, ///< There is no noexcept specifier. 276460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_BadNoexcept, ///< The noexcept specifier has a bad expression. 276560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Dependent, ///< The noexcept specifier is dependent. 276660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Throw, ///< The noexcept specifier evaluates to false. 276760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Nothrow ///< The noexcept specifier evaluates to true. 276860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl }; 276960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Get the meaning of the noexcept spec on this function, if any. 27708026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl NoexceptResult getNoexceptSpec(ASTContext &Ctx) const; 2771465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned getNumExceptions() const { return NumExceptions; } 2772465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl QualType getExceptionType(unsigned i) const { 2773465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(i < NumExceptions && "Invalid exception number!"); 2774465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return exception_begin()[i]; 2775465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 277660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl Expr *getNoexceptExpr() const { 277760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (getExceptionSpecType() != EST_ComputedNoexcept) 277860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return 0; 277960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl // NoexceptExpr sits where the arguments end. 278060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return *reinterpret_cast<Expr *const *>(arg_type_end()); 2781d3fd6bad1249d3f34d71b73e2333fab0db51cce4Anders Carlsson } 27828026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl bool isNothrow(ASTContext &Ctx) const { 278360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl ExceptionSpecificationType EST = getExceptionSpecType(); 27847a614d8380297fcd2bc23986241905d97222948cRichard Smith assert(EST != EST_Delayed); 278560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EST == EST_DynamicNone || EST == EST_BasicNoexcept) 278660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return true; 278760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EST != EST_ComputedNoexcept) 278860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return false; 27898026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl return getNoexceptSpec(Ctx) == NR_Nothrow; 2790c2f3e7f42c8bf9e8d4393a6e8c4762dafc4f28ddJohn McCall } 2791c2f3e7f42c8bf9e8d4393a6e8c4762dafc4f28ddJohn McCall 2792e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall using FunctionType::isVariadic; 279360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2794f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// \brief Determines whether this function prototype contains a 2795f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// parameter pack at the end. 2796f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// 2797f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// A function template whose last parameter is a parameter pack can be 2798f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// called with an arbitrary number of arguments, much like a variadic 2799f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// function. However, 2800f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor bool isTemplateVariadic() const; 2801f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor 2802971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned getTypeQuals() const { return FunctionType::getTypeQuals(); } 28031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2804c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2805c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief Retrieve the ref-qualifier associated with this function type. 2806c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind getRefQualifier() const { 2807c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor return FunctionType::getRefQualifier(); 2808c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2809c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 28105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef const QualType *arg_type_iterator; 2811942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator arg_type_begin() const { 2812942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner return reinterpret_cast<const QualType *>(this+1); 2813942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner } 2814942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator arg_type_end() const { return arg_type_begin()+NumArgs; } 2815465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2816465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl typedef const QualType *exception_iterator; 2817465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl exception_iterator exception_begin() const { 2818465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // exceptions begin where arguments end 2819465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return arg_type_end(); 2820465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 2821465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl exception_iterator exception_end() const { 282260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (getExceptionSpecType() != EST_Dynamic) 282360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return exception_begin(); 2824465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return exception_begin() + NumExceptions; 2825465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 2826465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2827f85e193739c953358c865005855253af4f68a497John McCall bool hasAnyConsumedArgs() const { 2828f85e193739c953358c865005855253af4f68a497John McCall return HasAnyConsumedArgs; 2829f85e193739c953358c865005855253af4f68a497John McCall } 2830f85e193739c953358c865005855253af4f68a497John McCall bool isArgConsumed(unsigned I) const { 2831f85e193739c953358c865005855253af4f68a497John McCall assert(I < getNumArgs() && "argument index out of range!"); 2832f85e193739c953358c865005855253af4f68a497John McCall if (hasAnyConsumedArgs()) 2833f85e193739c953358c865005855253af4f68a497John McCall return getConsumedArgsBuffer()[I]; 2834f85e193739c953358c865005855253af4f68a497John McCall return false; 2835f85e193739c953358c865005855253af4f68a497John McCall } 2836f85e193739c953358c865005855253af4f68a497John McCall 2837bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2838bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2839bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 28405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 28415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionProto; 28425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 284372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const FunctionProtoType *) { return true; } 2844465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 28458026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx); 28465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Result, 2847942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator ArgTys, unsigned NumArgs, 28488026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl const ExtProtoInfo &EPI, const ASTContext &Context); 28495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2852ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// \brief Represents the dependent type named by a dependently-scoped 2853ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// typename using declaration, e.g. 2854ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// using typename Base<T>::foo; 2855ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// Template instantiation turns these into the underlying type. 2856ed97649e9574b9d854fa4d6109c9333ae0993554John McCallclass UnresolvedUsingType : public Type { 2857ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *Decl; 2858ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 285919c8576b7328f4dc2d07682f5da552875c1912efJohn McCall UnresolvedUsingType(const UnresolvedUsingTypenameDecl *D) 2860d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(UnresolvedUsing, QualType(), true, false, 2861d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 286219c8576b7328f4dc2d07682f5da552875c1912efJohn McCall Decl(const_cast<UnresolvedUsingTypenameDecl*>(D)) {} 2863ed97649e9574b9d854fa4d6109c9333ae0993554John McCall friend class ASTContext; // ASTContext creates these. 2864ed97649e9574b9d854fa4d6109c9333ae0993554John McCallpublic: 2865ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2866ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *getDecl() const { return Decl; } 2867ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2868ed97649e9574b9d854fa4d6109c9333ae0993554John McCall bool isSugared() const { return false; } 2869ed97649e9574b9d854fa4d6109c9333ae0993554John McCall QualType desugar() const { return QualType(this, 0); } 2870ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2871ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static bool classof(const Type *T) { 2872ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return T->getTypeClass() == UnresolvedUsing; 2873ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2874ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static bool classof(const UnresolvedUsingType *) { return true; } 2875ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2876ed97649e9574b9d854fa4d6109c9333ae0993554John McCall void Profile(llvm::FoldingSetNodeID &ID) { 2877ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Profile(ID, Decl); 2878ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2879ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static void Profile(llvm::FoldingSetNodeID &ID, 2880ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *D) { 2881ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ID.AddPointer(D); 2882ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2883ed97649e9574b9d854fa4d6109c9333ae0993554John McCall}; 2884ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2885ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass TypedefType : public Type { 2887162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefNameDecl *Decl; 2888c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanianprotected: 2889162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefType(TypeClass tc, const TypedefNameDecl *D, QualType can) 2890d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, can, can->isDependentType(), can->isVariablyModifiedType(), 2891d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 2892162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Decl(const_cast<TypedefNameDecl*>(D)) { 28935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isa<TypedefType>(can) && "Invalid canonical type"); 28945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 28965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 28971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2898162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefNameDecl *getDecl() const { return Decl; } 28991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2900bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2901bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const; 2902bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 290372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == Typedef; } 29045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const TypedefType *) { return true; } 29055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 290772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType (GCC extension). 290872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass TypeOfExprType : public Type { 2909d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *TOExpr; 29101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2911b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregorprotected: 2912dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType(Expr *E, QualType can = QualType()); 2913d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff friend class ASTContext; // ASTContext creates these. 2914d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffpublic: 2915d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *getUnderlyingExpr() const { return TOExpr; } 29161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2917bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2918bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const; 2919bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2920bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2921bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2922bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 292372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == TypeOfExpr; } 292472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const TypeOfExprType *) { return true; } 2925d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff}; 2926d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 2927c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// \brief Internal representation of canonical, dependent 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typeof(expr) types. 2929c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// 2930c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// This class is used internally by the ASTContext to manage 2931c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// canonical, dependent types, only. Clients will only see instances 2932c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// of this class via TypeOfExprType nodes. 29331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass DependentTypeOfExprType 2934b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor : public TypeOfExprType, public llvm::FoldingSetNode { 29354ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 29361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2937b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregorpublic: 29384ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentTypeOfExprType(const ASTContext &Context, Expr *E) 2939b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor : TypeOfExprType(E), Context(Context) { } 29401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2941bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2942bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2943bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2944b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 2945b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Profile(ID, Context, getUnderlyingExpr()); 2946b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 29471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29484ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 2949b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Expr *E); 2950b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor}; 29511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2952d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff/// TypeOfType (GCC extension). 2953d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffclass TypeOfType : public Type { 2954d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff QualType TOType; 29551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypeOfType(QualType T, QualType can) 2956d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(TypeOf, can, T->isDependentType(), T->isVariablyModifiedType(), 2957d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor T->containsUnexpandedParameterPack()), 295835495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor TOType(T) { 2959d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(!isa<TypedefType>(can) && "Invalid canonical type"); 2960d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 2961d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff friend class ASTContext; // ASTContext creates these. 2962d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffpublic: 2963d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff QualType getUnderlyingType() const { return TOType; } 29641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2965bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2966bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getUnderlyingType(); } 2967bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2968bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2969bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2970bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 297172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == TypeOf; } 2972d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff static bool classof(const TypeOfType *) { return true; } 2973d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff}; 29745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2975395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType (C++0x) 2976395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlssonclass DecltypeType : public Type { 2977395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Expr *E; 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2979563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // FIXME: We could get rid of UnderlyingType if we wanted to: We would have to 2980563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // Move getDesugaredType to ASTContext so that it can call getDecltypeForExpr 2981563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // from it. 2982563a03b1338d31c2462def43253a722bc885d384Anders Carlsson QualType UnderlyingType; 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorprotected: 2985563a03b1338d31c2462def43253a722bc885d384Anders Carlsson DecltypeType(Expr *E, QualType underlyingType, QualType can = QualType()); 2986395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson friend class ASTContext; // ASTContext creates these. 2987395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlssonpublic: 2988395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Expr *getUnderlyingExpr() const { return E; } 2989563a03b1338d31c2462def43253a722bc885d384Anders Carlsson QualType getUnderlyingType() const { return UnderlyingType; } 2990563a03b1338d31c2462def43253a722bc885d384Anders Carlsson 2991bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2992bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getUnderlyingType(); } 2993bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2994bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2995bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return !isDependentType(); } 2996bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2997395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson static bool classof(const Type *T) { return T->getTypeClass() == Decltype; } 2998395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson static bool classof(const DecltypeType *) { return true; } 2999395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson}; 30001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3001c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// \brief Internal representation of canonical, dependent 3002c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// decltype(expr) types. 3003c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// 3004c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// This class is used internally by the ASTContext to manage 3005c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// canonical, dependent types, only. Clients will only see instances 3006c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// of this class via DecltypeType nodes. 30079d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorclass DependentDecltypeType : public DecltypeType, public llvm::FoldingSetNode { 30084ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 30091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30109d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorpublic: 30114ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentDecltypeType(const ASTContext &Context, Expr *E); 30121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3013bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3014bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3015bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 30169d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 30179d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor Profile(ID, Context, getUnderlyingExpr()); 30189d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 30191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30204ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 30211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *E); 30229d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor}; 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3024ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt/// \brief A unary type transform, which is a type constructed from another 3025ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntclass UnaryTransformType : public Type { 3026ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntpublic: 3027ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt enum UTTKind { 3028ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumUnderlyingType 3029ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt }; 3030ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3031ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntprivate: 3032ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt /// The untransformed type. 3033ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType BaseType; 3034ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt /// The transformed type if not dependent, otherwise the same as BaseType. 3035ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType UnderlyingType; 3036ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3037ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UTTKind UKind; 3038ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntprotected: 3039ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType(QualType BaseTy, QualType UnderlyingTy, UTTKind UKind, 3040ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType CanonicalTy); 3041ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt friend class ASTContext; 3042ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntpublic: 3043ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt bool isSugared() const { return !isDependentType(); } 3044ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType desugar() const { return UnderlyingType; } 3045ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3046ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType getUnderlyingType() const { return UnderlyingType; } 3047ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType getBaseType() const { return BaseType; } 3048ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3049ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UTTKind getUTTKind() const { return UKind; } 3050ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3051ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt static bool classof(const Type *T) { 3052ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return T->getTypeClass() == UnaryTransform; 3053ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3054ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt static bool classof(const UnaryTransformType *) { return true; } 3055ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt}; 3056ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 30575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass TagType : public Type { 3058ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl /// Stores the TagDecl associated with this type. The decl may point to any 3059ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl /// TagDecl that declares the entity. 3060ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl TagDecl * decl; 30612ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 30622ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregorprotected: 306319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall TagType(TypeClass TC, const TagDecl *D, QualType can); 30642ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 30651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 3066ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl TagDecl *getDecl() const; 30671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30680b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor /// @brief Determines whether this type is in the process of being 30691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// defined. 3070ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl bool isBeingDefined() const; 30710b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor 30721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 307372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return T->getTypeClass() >= TagFirst && T->getTypeClass() <= TagLast; 307472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor } 30755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const TagType *) { return true; } 307672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const RecordType *) { return true; } 307772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const EnumType *) { return true; } 30785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 30805edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// RecordType - This is a helper class that allows the use of isa/cast/dyncast 30815edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// to detect TagType objects of structs/unions/classes. 30825edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerclass RecordType : public TagType { 308349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidisprotected: 308419c8576b7328f4dc2d07682f5da552875c1912efJohn McCall explicit RecordType(const RecordDecl *D) 308519c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(Record, reinterpret_cast<const TagDecl*>(D), QualType()) { } 308672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor explicit RecordType(TypeClass TC, RecordDecl *D) 308719c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(TC, reinterpret_cast<const TagDecl*>(D), QualType()) { } 30882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor friend class ASTContext; // ASTContext creates these. 30895edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerpublic: 30901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30915edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner RecordDecl *getDecl() const { 30925edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner return reinterpret_cast<RecordDecl*>(TagType::getDecl()); 30935edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner } 30941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FIXME: This predicate is a helper to QualType/Type. It needs to 30965edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner // recursively check all fields for const-ness. If any field is declared 30971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // const, it needs to return false. 30985edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner bool hasConstFields() const { return false; } 30995edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 3100bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3101bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3102bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 31032daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const TagType *T); 31042daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const Type *T) { 31052daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner return isa<TagType>(T) && classof(cast<TagType>(T)); 31062daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner } 31075edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner static bool classof(const RecordType *) { return true; } 31085edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner}; 31095edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 31105edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// EnumType - This is a helper class that allows the use of isa/cast/dyncast 31115edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// to detect TagType objects of enums. 31125edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerclass EnumType : public TagType { 311319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall explicit EnumType(const EnumDecl *D) 311419c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(Enum, reinterpret_cast<const TagDecl*>(D), QualType()) { } 31152ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor friend class ASTContext; // ASTContext creates these. 31165edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerpublic: 31171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31185edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner EnumDecl *getDecl() const { 31195edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner return reinterpret_cast<EnumDecl*>(TagType::getDecl()); 31205edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner } 31211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3122bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3123bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3124bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 31252daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const TagType *T); 31262daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const Type *T) { 31272daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner return isa<TagType>(T) && classof(cast<TagType>(T)); 31282daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner } 31295edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner static bool classof(const EnumType *) { return true; } 31305edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner}; 31315edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 31329d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// AttributedType - An attributed type is a type to which a type 31339d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// attribute has been applied. The "modified type" is the 31349d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// fully-sugared type to which the attributed type was applied; 31359d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// generally it is not canonically equivalent to the attributed type. 31369d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// The "equivalent type" is the minimally-desugared type which the 31379d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// type is canonically equivalent to. 31389d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// 31399d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// For example, in the following attributed type: 31409d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// int32_t __attribute__((vector_size(16))) 31419d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the modified type is the TypedefType for int32_t 31429d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the equivalent type is VectorType(16, int32_t) 31439d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the canonical type is VectorType(16, int) 31449d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallclass AttributedType : public Type, public llvm::FoldingSetNode { 31459d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallpublic: 31469d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // It is really silly to have yet another attribute-kind enum, but 31479d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // clang::attr::Kind doesn't currently cover the pure type attrs. 31489d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall enum Kind { 31499d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // Expression operand. 3150170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_address_space, 3151170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_regparm, 3152170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_vector_size, 3153170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_neon_vector_type, 3154170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_neon_polyvector_type, 31559d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3156170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet FirstExprOperandKind = attr_address_space, 3157170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet LastExprOperandKind = attr_neon_polyvector_type, 31589d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31599d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // Enumerated operand (string or keyword). 3160170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_objc_gc, 3161b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis attr_objc_ownership, 3162414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr_pcs, 31639d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3164170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet FirstEnumOperandKind = attr_objc_gc, 3165414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov LastEnumOperandKind = attr_pcs, 31669d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31679d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // No operand. 31683cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_noreturn, 31693cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_cdecl, 31703cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_fastcall, 31713cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_stdcall, 31723cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_thiscall, 31733cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_pascal 31749d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall }; 31759d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31769d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallprivate: 31779d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType ModifiedType; 31789d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType EquivalentType; 31799d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31809d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall friend class ASTContext; // creates these 31819d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31829d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedType(QualType canon, Kind attrKind, 31839d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType modified, QualType equivalent) 31849d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall : Type(Attributed, canon, canon->isDependentType(), 31859d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall canon->isVariablyModifiedType(), 31869d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall canon->containsUnexpandedParameterPack()), 31879d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ModifiedType(modified), EquivalentType(equivalent) { 31889d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedTypeBits.AttrKind = attrKind; 31899d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31909d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31919d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallpublic: 31929d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall Kind getAttrKind() const { 31939d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall return static_cast<Kind>(AttributedTypeBits.AttrKind); 31949d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31959d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31969d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType getModifiedType() const { return ModifiedType; } 31979d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType getEquivalentType() const { return EquivalentType; } 31989d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31999d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall bool isSugared() const { return true; } 32009d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType desugar() const { return getEquivalentType(); } 32019d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 32029d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall void Profile(llvm::FoldingSetNodeID &ID) { 32039d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall Profile(ID, getAttrKind(), ModifiedType, EquivalentType); 32049d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 32059d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 32069d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, Kind attrKind, 32079d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType modified, QualType equivalent) { 32089d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddInteger(attrKind); 32099d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddPointer(modified.getAsOpaquePtr()); 32109d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddPointer(equivalent.getAsOpaquePtr()); 32119d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 32129d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 32139d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static bool classof(const Type *T) { 32149d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall return T->getTypeClass() == Attributed; 32159d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 32169d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static bool classof(const AttributedType *T) { return true; } 32179d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall}; 32189d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3219fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregorclass TemplateTypeParmType : public Type, public llvm::FoldingSetNode { 32204fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Helper data collector for canonical types. 32214fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth struct CanonicalTTPTInfo { 32224fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned Depth : 15; 32234fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned ParameterPack : 1; 32244fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned Index : 16; 32254fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth }; 32264fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 32274fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth union { 32284fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Info for the canonical type. 32294fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanonicalTTPTInfo CanTTPTInfo; 32304fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Info for the non-canonical type. 32314fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *TTPDecl; 32324fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth }; 323372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32344fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /// Build a non-canonical type. 32354fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmType(TemplateTypeParmDecl *TTPDecl, QualType Canon) 323635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(TemplateTypeParm, Canon, /*Dependent=*/true, 32374fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /*VariablyModified=*/false, 32385d65e34b08b3e57a4da834195757d0d15baaffd0Chandler Carruth Canon->containsUnexpandedParameterPack()), 32394fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TTPDecl(TTPDecl) { } 324072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32414fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /// Build the canonical type. 32421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType(unsigned D, unsigned I, bool PP) 324335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(TemplateTypeParm, QualType(this, 0), /*Dependent=*/true, 32444fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /*VariablyModified=*/false, PP) { 32454fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.Depth = D; 32464fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.Index = I; 32474fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.ParameterPack = PP; 32484fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 324972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 3250fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor friend class ASTContext; // ASTContext creates these 325172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32524fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth const CanonicalTTPTInfo& getCanTTPTInfo() const { 32534fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth QualType Can = getCanonicalTypeInternal(); 32545d65e34b08b3e57a4da834195757d0d15baaffd0Chandler Carruth return Can->castAs<TemplateTypeParmType>()->CanTTPTInfo; 32554fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 32564fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 3257fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregorpublic: 32584fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned getDepth() const { return getCanTTPTInfo().Depth; } 32594fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned getIndex() const { return getCanTTPTInfo().Index; } 32604fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth bool isParameterPack() const { return getCanTTPTInfo().ParameterPack; } 32614fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 32624fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *getDecl() const { 32634fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth return isCanonicalUnqualified() ? 0 : TTPDecl; 32644fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 32654fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 3266b7efff4bae117604f442bb6859c844f90b15f3ffChandler Carruth IdentifierInfo *getIdentifier() const; 32671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3268bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3269bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3270bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3271fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 32724fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth Profile(ID, getDepth(), getIndex(), isParameterPack(), getDecl()); 3273fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } 3274fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 32751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, unsigned Depth, 32761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned Index, bool ParameterPack, 32774fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *TTPDecl) { 3278fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor ID.AddInteger(Depth); 3279fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor ID.AddInteger(Index); 328076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson ID.AddBoolean(ParameterPack); 32814fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth ID.AddPointer(TTPDecl); 3282fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } 3283fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 32841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 32851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == TemplateTypeParm; 328672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 328772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor static bool classof(const TemplateTypeParmType *T) { return true; } 328872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor}; 3289fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 329049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Represents the result of substituting a type for a template 329149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// type parameter. 329249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// 329349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// Within an instantiated template, all template type parameters have 329449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// been replaced with these. They are used solely to record that a 329549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// type was originally written as a template type parameter; 329649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// therefore they are never canonical. 329749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallclass SubstTemplateTypeParmType : public Type, public llvm::FoldingSetNode { 329849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall // The original type parameter. 329949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *Replaced; 330049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 330149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(const TemplateTypeParmType *Param, QualType Canon) 330235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(SubstTemplateTypeParm, Canon, Canon->isDependentType(), 3303d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Canon->isVariablyModifiedType(), 3304d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Canon->containsUnexpandedParameterPack()), 330549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Replaced(Param) { } 330649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 330749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall friend class ASTContext; 330849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 330949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallpublic: 331049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// Gets the template parameter that was substituted for. 331149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *getReplacedParameter() const { 331249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return Replaced; 331349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 331449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 331549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// Gets the type that was substituted for the template 331649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// parameter. 331749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType getReplacementType() const { 331849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getCanonicalTypeInternal(); 331949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 332049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 332149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall bool isSugared() const { return true; } 332249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType desugar() const { return getReplacementType(); } 332349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 332449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void Profile(llvm::FoldingSetNodeID &ID) { 332549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Profile(ID, getReplacedParameter(), getReplacementType()); 332649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 332749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, 332849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *Replaced, 332949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 333049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall ID.AddPointer(Replaced); 333149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall ID.AddPointer(Replacement.getAsOpaquePtr()); 333249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 333349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 333449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static bool classof(const Type *T) { 333549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return T->getTypeClass() == SubstTemplateTypeParm; 333649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 333749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static bool classof(const SubstTemplateTypeParmType *T) { return true; } 333849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall}; 333949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 3340c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// \brief Represents the result of substituting a set of types for a template 3341c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// type parameter pack. 3342c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// 3343c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// When a pack expansion in the source code contains multiple parameter packs 3344c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// and those parameter packs correspond to different levels of template 3345c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// parameter lists, this type node is used to represent a template type 3346c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// parameter pack from an outer level, which has already had its argument pack 3347c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// substituted but that still lives within a pack expansion that itself 3348c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// could not be instantiated. When actually performing a substitution into 3349c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// that pack expansion (e.g., when all template parameters have corresponding 3350c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// arguments), this type will be replaced with the \c SubstTemplateTypeParmType 3351c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// at the current pack substitution index. 3352c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregorclass SubstTemplateTypeParmPackType : public Type, public llvm::FoldingSetNode { 3353c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief The original type parameter. 3354c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *Replaced; 3355c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3356c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief A pointer to the set of template arguments that this 3357c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// parameter pack is instantiated with. 3358c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument *Arguments; 3359c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3360c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief The number of template arguments in \c Arguments. 3361c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor unsigned NumArguments; 3362c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3363c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor SubstTemplateTypeParmPackType(const TemplateTypeParmType *Param, 3364c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor QualType Canon, 3365c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument &ArgPack); 3366c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3367c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor friend class ASTContext; 3368c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3369c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregorpublic: 3370b7efff4bae117604f442bb6859c844f90b15f3ffChandler Carruth IdentifierInfo *getIdentifier() const { return Replaced->getIdentifier(); } 3371c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3372c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// Gets the template parameter that was substituted for. 3373c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *getReplacedParameter() const { 3374c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor return Replaced; 3375c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor } 3376c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3377c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor bool isSugared() const { return false; } 3378c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor QualType desugar() const { return QualType(this, 0); } 3379c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3380c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor TemplateArgument getArgumentPack() const; 3381c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3382c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID); 3383c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, 3384c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *Replaced, 3385c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument &ArgPack); 3386c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3387c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static bool classof(const Type *T) { 3388c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor return T->getTypeClass() == SubstTemplateTypeParmPack; 3389c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor } 3390c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static bool classof(const SubstTemplateTypeParmPackType *T) { return true; } 3391c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor}; 3392c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 339334b41d939a1328f484511c6002ba2456db879a29Richard Smith/// \brief Represents a C++0x auto type. 339434b41d939a1328f484511c6002ba2456db879a29Richard Smith/// 339534b41d939a1328f484511c6002ba2456db879a29Richard Smith/// These types are usually a placeholder for a deduced type. However, within 339634b41d939a1328f484511c6002ba2456db879a29Richard Smith/// templates and before the initializer is attached, there is no deduced type 339734b41d939a1328f484511c6002ba2456db879a29Richard Smith/// and an auto type is type-dependent and canonical. 339834b41d939a1328f484511c6002ba2456db879a29Richard Smithclass AutoType : public Type, public llvm::FoldingSetNode { 339934b41d939a1328f484511c6002ba2456db879a29Richard Smith AutoType(QualType DeducedType) 340034b41d939a1328f484511c6002ba2456db879a29Richard Smith : Type(Auto, DeducedType.isNull() ? QualType(this, 0) : DeducedType, 340134b41d939a1328f484511c6002ba2456db879a29Richard Smith /*Dependent=*/DeducedType.isNull(), 340234b41d939a1328f484511c6002ba2456db879a29Richard Smith /*VariablyModified=*/false, /*ContainsParameterPack=*/false) { 340334b41d939a1328f484511c6002ba2456db879a29Richard Smith assert((DeducedType.isNull() || !DeducedType->isDependentType()) && 340434b41d939a1328f484511c6002ba2456db879a29Richard Smith "deduced a dependent type for auto"); 340534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 340634b41d939a1328f484511c6002ba2456db879a29Richard Smith 340734b41d939a1328f484511c6002ba2456db879a29Richard Smith friend class ASTContext; // ASTContext creates these 340834b41d939a1328f484511c6002ba2456db879a29Richard Smith 340934b41d939a1328f484511c6002ba2456db879a29Richard Smithpublic: 341034b41d939a1328f484511c6002ba2456db879a29Richard Smith bool isSugared() const { return isDeduced(); } 341134b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType desugar() const { return getCanonicalTypeInternal(); } 341234b41d939a1328f484511c6002ba2456db879a29Richard Smith 341334b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType getDeducedType() const { 341434b41d939a1328f484511c6002ba2456db879a29Richard Smith return isDeduced() ? getCanonicalTypeInternal() : QualType(); 341534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 341634b41d939a1328f484511c6002ba2456db879a29Richard Smith bool isDeduced() const { 341734b41d939a1328f484511c6002ba2456db879a29Richard Smith return !isDependentType(); 341834b41d939a1328f484511c6002ba2456db879a29Richard Smith } 341934b41d939a1328f484511c6002ba2456db879a29Richard Smith 342034b41d939a1328f484511c6002ba2456db879a29Richard Smith void Profile(llvm::FoldingSetNodeID &ID) { 342134b41d939a1328f484511c6002ba2456db879a29Richard Smith Profile(ID, getDeducedType()); 342234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 342334b41d939a1328f484511c6002ba2456db879a29Richard Smith 342434b41d939a1328f484511c6002ba2456db879a29Richard Smith static void Profile(llvm::FoldingSetNodeID &ID, 342534b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType Deduced) { 342634b41d939a1328f484511c6002ba2456db879a29Richard Smith ID.AddPointer(Deduced.getAsOpaquePtr()); 342734b41d939a1328f484511c6002ba2456db879a29Richard Smith } 342834b41d939a1328f484511c6002ba2456db879a29Richard Smith 342934b41d939a1328f484511c6002ba2456db879a29Richard Smith static bool classof(const Type *T) { 343034b41d939a1328f484511c6002ba2456db879a29Richard Smith return T->getTypeClass() == Auto; 343134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 343234b41d939a1328f484511c6002ba2456db879a29Richard Smith static bool classof(const AutoType *T) { return true; } 343334b41d939a1328f484511c6002ba2456db879a29Richard Smith}; 343434b41d939a1328f484511c6002ba2456db879a29Richard Smith 34351901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// \brief Represents a type template specialization; the template 34361901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// must be a class template, a type alias template, or a template 34371901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// template parameter. A template which cannot be resolved to one of 34381901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// these, e.g. because it is written with a dependent scope 34391901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// specifier, is instead represented as a 34401901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// @c DependentTemplateSpecializationType. 344155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor/// 34421901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// A non-dependent template specialization type is always "sugar", 34431901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// typically for a @c RecordType. For example, a class template 34441901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// specialization type of @c vector<int> will refer to a tag type for 34451901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// the instantiation @c std::vector<int, std::allocator<int>> 34467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// 34471901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// Template specializations are dependent if either the template or 34481901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// any of the template arguments are dependent, in which case the 34491901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// type may also be canonical. 34503e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith/// 34511901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// Instances of this type are allocated with a trailing array of 34521901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// TemplateArguments, followed by a QualType representing the 34531901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// non-canonical aliased type when the template is a type alias 34541901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall/// template. 34551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass TemplateSpecializationType 345655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor : public Type, public llvm::FoldingSetNode { 34571901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall /// \brief The name of the template being specialized. This is 34581901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall /// either a TemplateName::Template (in which case it is a 34591901dce8b1e78d0bf7072cccab695bd58c7eec21John McCall /// ClassTemplateDecl*, a TemplateTemplateParmDecl*, or a 3460146060435c3efce95c95a092c7a1eb651cfb9ae0John McCall /// TypeAliasTemplateDecl*), a 3461146060435c3efce95c95a092c7a1eb651cfb9ae0John McCall /// TemplateName::SubstTemplateTemplateParmPack, or a 3462146060435c3efce95c95a092c7a1eb651cfb9ae0John McCall /// TemplateName::SubstTemplateTemplateParm (in which case the 3463146060435c3efce95c95a092c7a1eb651cfb9ae0John McCall /// replacement must, recursively, be one of these). 34647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Template; 346555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 346640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief - The number of template arguments named in this class 346740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// template specialization. 346855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned NumArgs; 346955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 3470ef99001908e799c388f1363b1e607dad5f5b57d3John McCall TemplateSpecializationType(TemplateName T, 34717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 34723e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith unsigned NumArgs, QualType Canon, 34733e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith QualType Aliased); 347455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 347555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor friend class ASTContext; // ASTContext creates these 347655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 347755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregorpublic: 347840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Determine whether any of the given template arguments are 347940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// dependent. 348040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor static bool anyDependentTemplateArguments(const TemplateArgument *Args, 34811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned NumArgs); 348240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 3483833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall static bool anyDependentTemplateArguments(const TemplateArgumentLoc *Args, 3484833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall unsigned NumArgs); 3485833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3486d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static bool anyDependentTemplateArguments(const TemplateArgumentListInfo &); 3487d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 3488df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor /// \brief Print a template argument list, including the '<' and '>' 3489df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor /// enclosing the template arguments. 3490df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor static std::string PrintTemplateArgumentList(const TemplateArgument *Args, 3491d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor unsigned NumArgs, 3492dace95b13e2ceb0c3ec8de6babd926dc5114e1e5Douglas Gregor const PrintingPolicy &Policy, 3493dace95b13e2ceb0c3ec8de6babd926dc5114e1e5Douglas Gregor bool SkipBrackets = false); 3494df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor 3495833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall static std::string PrintTemplateArgumentList(const TemplateArgumentLoc *Args, 3496833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall unsigned NumArgs, 3497833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const PrintingPolicy &Policy); 3498833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3499d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::string PrintTemplateArgumentList(const TemplateArgumentListInfo &, 3500d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const PrintingPolicy &Policy); 3501d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 350231f17ecbef57b5679c017c375db330546b7b5145John McCall /// True if this template specialization type matches a current 350331f17ecbef57b5679c017c375db330546b7b5145John McCall /// instantiation in the context in which it is found. 350431f17ecbef57b5679c017c375db330546b7b5145John McCall bool isCurrentInstantiation() const { 350571d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall return isa<InjectedClassNameType>(getCanonicalTypeInternal()); 350631f17ecbef57b5679c017c375db330546b7b5145John McCall } 350731f17ecbef57b5679c017c375db330546b7b5145John McCall 35083e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// True if this template specialization type is for a type alias 35093e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// template. 35103e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith bool isTypeAlias() const; 35113e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// Get the aliased type, if this is a specialization of a type alias 35123e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// template. 35133e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith QualType getAliasedType() const { 35143e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith assert(isTypeAlias() && "not a type alias template specialization"); 35153e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return *reinterpret_cast<const QualType*>(end()); 35163e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith } 35173e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 351840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor typedef const TemplateArgument * iterator; 351940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 352040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor iterator begin() const { return getArgs(); } 352133500955d731c73717af52088b7fc0e7a85681e7John McCall iterator end() const; // defined inline in TemplateBase.h 352240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 35237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor /// \brief Retrieve the name of the template that we are specializing. 35247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName getTemplateName() const { return Template; } 352555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 352640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Retrieve the template arguments. 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const TemplateArgument *getArgs() const { 352840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor return reinterpret_cast<const TemplateArgument *>(this + 1); 352940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor } 353040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 353140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Retrieve the number of template arguments. 353255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned getNumArgs() const { return NumArgs; } 353355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 353455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// \brief Retrieve a specific template argument as a type. 353555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// \precondition @c isArgType(Arg) 353633500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument &getArg(unsigned Idx) const; // in TemplateBase.h 353755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 353831f17ecbef57b5679c017c375db330546b7b5145John McCall bool isSugared() const { 35393e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return !isDependentType() || isCurrentInstantiation() || isTypeAlias(); 354031f17ecbef57b5679c017c375db330546b7b5145John McCall } 3541bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getCanonicalTypeInternal(); } 3542bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 35434ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx) { 354471d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall Profile(ID, Template, getArgs(), NumArgs, Ctx); 35453e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (isTypeAlias()) 35463e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith getAliasedType().Profile(ID); 354755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 354855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 35497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, TemplateName T, 355031f17ecbef57b5679c017c375db330546b7b5145John McCall const TemplateArgument *Args, 355131f17ecbef57b5679c017c375db330546b7b5145John McCall unsigned NumArgs, 35524ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context); 355355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 35541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 35551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == TemplateSpecialization; 355655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 35577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor static bool classof(const TemplateSpecializationType *T) { return true; } 355855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor}; 355955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 356031f17ecbef57b5679c017c375db330546b7b5145John McCall/// \brief The injected class name of a C++ class template or class 356131f17ecbef57b5679c017c375db330546b7b5145John McCall/// template partial specialization. Used to record that a type was 356231f17ecbef57b5679c017c375db330546b7b5145John McCall/// spelled with a bare identifier rather than as a template-id; the 356331f17ecbef57b5679c017c375db330546b7b5145John McCall/// equivalent for non-templated classes is just RecordType. 35643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// 356531f17ecbef57b5679c017c375db330546b7b5145John McCall/// Injected class name types are always dependent. Template 356631f17ecbef57b5679c017c375db330546b7b5145John McCall/// instantiation turns these into RecordTypes. 35673cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// 356831f17ecbef57b5679c017c375db330546b7b5145John McCall/// Injected class name types are always canonical. This works 356931f17ecbef57b5679c017c375db330546b7b5145John McCall/// because it is impossible to compare an injected class name type 357031f17ecbef57b5679c017c375db330546b7b5145John McCall/// with the corresponding non-injected template type, for the same 357131f17ecbef57b5679c017c375db330546b7b5145John McCall/// reason that it is impossible to directly compare template 357231f17ecbef57b5679c017c375db330546b7b5145John McCall/// parameters from different dependent contexts: injected class name 357331f17ecbef57b5679c017c375db330546b7b5145John McCall/// types can only occur within the scope of a particular templated 357431f17ecbef57b5679c017c375db330546b7b5145John McCall/// declaration, and within that scope every template specialization 357531f17ecbef57b5679c017c375db330546b7b5145John McCall/// will canonicalize to the injected class name (when appropriate 357631f17ecbef57b5679c017c375db330546b7b5145John McCall/// according to the rules of the language). 35773cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallclass InjectedClassNameType : public Type { 35783cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall CXXRecordDecl *Decl; 35793cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 358031f17ecbef57b5679c017c375db330546b7b5145John McCall /// The template specialization which this type represents. 358131f17ecbef57b5679c017c375db330546b7b5145John McCall /// For example, in 358231f17ecbef57b5679c017c375db330546b7b5145John McCall /// template <class T> class A { ... }; 358331f17ecbef57b5679c017c375db330546b7b5145John McCall /// this is A<T>, whereas in 358431f17ecbef57b5679c017c375db330546b7b5145John McCall /// template <class X, class Y> class A<B<X,Y> > { ... }; 358531f17ecbef57b5679c017c375db330546b7b5145John McCall /// this is A<B<X,Y> >. 358631f17ecbef57b5679c017c375db330546b7b5145John McCall /// 358731f17ecbef57b5679c017c375db330546b7b5145John McCall /// It is always unqualified, always a template specialization type, 358831f17ecbef57b5679c017c375db330546b7b5145John McCall /// and always dependent. 358931f17ecbef57b5679c017c375db330546b7b5145John McCall QualType InjectedType; 35903cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 35913cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall friend class ASTContext; // ASTContext creates these. 3592c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl friend class ASTReader; // FIXME: ASTContext::getInjectedClassNameType is not 3593c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl // currently suitable for AST reading, too much 359443921b53b582145f0d1b7c48223bd4d9f0a9d1beArgyrios Kyrtzidis // interdependencies. 359531f17ecbef57b5679c017c375db330546b7b5145John McCall InjectedClassNameType(CXXRecordDecl *D, QualType TST) 359635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(InjectedClassName, QualType(), /*Dependent=*/true, 3597d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 3598d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 359931f17ecbef57b5679c017c375db330546b7b5145John McCall Decl(D), InjectedType(TST) { 36003cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<TemplateSpecializationType>(TST)); 36013cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(!TST.hasQualifiers()); 360231f17ecbef57b5679c017c375db330546b7b5145John McCall assert(TST->isDependentType()); 36033cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 36043cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 36053cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallpublic: 360631f17ecbef57b5679c017c375db330546b7b5145John McCall QualType getInjectedSpecializationType() const { return InjectedType; } 360731f17ecbef57b5679c017c375db330546b7b5145John McCall const TemplateSpecializationType *getInjectedTST() const { 360831f17ecbef57b5679c017c375db330546b7b5145John McCall return cast<TemplateSpecializationType>(InjectedType.getTypePtr()); 36093cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 36103cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 3611ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl CXXRecordDecl *getDecl() const; 36123cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 361331f17ecbef57b5679c017c375db330546b7b5145John McCall bool isSugared() const { return false; } 361431f17ecbef57b5679c017c375db330546b7b5145John McCall QualType desugar() const { return QualType(this, 0); } 36153cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 36163cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall static bool classof(const Type *T) { 36173cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return T->getTypeClass() == InjectedClassName; 36183cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 36193cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall static bool classof(const InjectedClassNameType *T) { return true; } 36203cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall}; 36213cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 3622465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief The kind of a tag type. 3623465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraenum TagTypeKind { 3624465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "struct" keyword. 3625465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Struct, 3626465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "union" keyword. 3627465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Union, 3628465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "class" keyword. 3629465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Class, 3630465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "enum" keyword. 3631465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Enum 3632465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara}; 3633465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 36344a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// \brief The elaboration keyword that precedes a qualified type name or 36354a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// introduces an elaborated-type-specifier. 36364a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregorenum ElaboratedTypeKeyword { 36374a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "struct" keyword introduces the elaborated-type-specifier. 36384a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ETK_Struct, 36394a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "union" keyword introduces the elaborated-type-specifier. 36404a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ETK_Union, 3641465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "class" keyword introduces the elaborated-type-specifier. 3642465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Class, 36434a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "enum" keyword introduces the elaborated-type-specifier. 3644465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Enum, 3645465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "typename" keyword precedes the qualified type name, e.g., 3646465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \c typename T::type. 3647465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Typename, 3648465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief No keyword precedes the qualified type name. 3649465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_None 36504a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor}; 3651465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3652465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// A helper class for Type nodes having an ElaboratedTypeKeyword. 3653465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// The keyword in stored in the free bits of the base class. 3654465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// Also provides a few static helpers for converting and printing 3655465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// elaborated type keyword and tag type kind enumerations. 3656465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass TypeWithKeyword : public Type { 3657465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraprotected: 3658465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TypeWithKeyword(ElaboratedTypeKeyword Keyword, TypeClass tc, 3659d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType Canonical, bool Dependent, bool VariablyModified, 3660d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 3661d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, Canonical, Dependent, VariablyModified, 3662d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack) { 366377be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall TypeWithKeywordBits.Keyword = Keyword; 366477be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall } 3665465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3666465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnarapublic: 3667465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword getKeyword() const { 366877be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall return static_cast<ElaboratedTypeKeyword>(TypeWithKeywordBits.Keyword); 3669465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3670465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3671465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getKeywordForTypeSpec - Converts a type specifier (DeclSpec::TST) 3672465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// into an elaborated type keyword. 3673465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static ElaboratedTypeKeyword getKeywordForTypeSpec(unsigned TypeSpec); 3674465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3675465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getTagTypeKindForTypeSpec - Converts a type specifier (DeclSpec::TST) 3676465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// into a tag type kind. It is an error to provide a type specifier 3677465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// which *isn't* a tag kind here. 3678465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static TagTypeKind getTagTypeKindForTypeSpec(unsigned TypeSpec); 3679465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3680465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getKeywordForTagDeclKind - Converts a TagTypeKind into an 3681465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// elaborated type keyword. 3682465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static ElaboratedTypeKeyword getKeywordForTagTypeKind(TagTypeKind Tag); 3683465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3684465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getTagTypeKindForKeyword - Converts an elaborated type keyword into 3685465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara // a TagTypeKind. It is an error to provide an elaborated type keyword 3686465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// which *isn't* a tag kind here. 3687465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static TagTypeKind getTagTypeKindForKeyword(ElaboratedTypeKeyword Keyword); 3688465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3689465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static bool KeywordIsTagTypeKind(ElaboratedTypeKeyword Keyword); 3690465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3691465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static const char *getKeywordName(ElaboratedTypeKeyword Keyword); 3692465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3693465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static const char *getTagTypeKindName(TagTypeKind Kind) { 3694465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return getKeywordName(getKeywordForTagTypeKind(Kind)); 3695465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3696465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3697465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara class CannotCastToThisType {}; 3698465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static CannotCastToThisType classof(const Type *); 3699465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara}; 3700465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3701465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Represents a type that was referred to using an elaborated type 3702465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// keyword, e.g., struct S, or via a qualified name, e.g., N::M::type, 3703465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// or both. 3704e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor/// 3705e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor/// This type is used to keep track of a type name as written in the 3706465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// source code, including tag keywords and any nested-name-specifiers. 3707465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// The type itself is always "sugar", used to express what was written 3708465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// in the source code but containing no additional semantic information. 3709465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass ElaboratedType : public TypeWithKeyword, public llvm::FoldingSetNode { 3710465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3711ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor /// \brief The nested name specifier containing the qualifier. 3712ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *NNS; 3713e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3714e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor /// \brief The type that this qualified name refers to. 3715e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType; 3716e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3717465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedType(ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS, 3718465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara QualType NamedType, QualType CanonType) 3719465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara : TypeWithKeyword(Keyword, Elaborated, CanonType, 372035495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor NamedType->isDependentType(), 3721d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NamedType->isVariablyModifiedType(), 3722d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NamedType->containsUnexpandedParameterPack()), 3723465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS(NNS), NamedType(NamedType) { 3724465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara assert(!(Keyword == ETK_None && NNS == 0) && 3725465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara "ElaboratedType cannot have elaborated type keyword " 3726465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara "and name qualifier both null."); 3727465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3728e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3729e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor friend class ASTContext; // ASTContext creates these 3730e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3731e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregorpublic: 373233500955d731c73717af52088b7fc0e7a85681e7John McCall ~ElaboratedType(); 3733465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3734ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor /// \brief Retrieve the qualification on this type. 3735ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *getQualifier() const { return NNS; } 3736e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3737e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor /// \brief Retrieve the type named by the qualified-id. 3738e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType getNamedType() const { return NamedType; } 3739e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3740bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 3741bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getNamedType(); } 3742bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3743bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 3744bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 3745bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3746e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3747465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Profile(ID, getKeyword(), NNS, NamedType); 3748e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor } 3749e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3750465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static void Profile(llvm::FoldingSetNodeID &ID, ElaboratedTypeKeyword Keyword, 3751465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS, QualType NamedType) { 3752465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ID.AddInteger(Keyword); 3753ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ID.AddPointer(NNS); 3754ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NamedType.Profile(ID); 3755ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor } 3756e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 37571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 3758465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T->getTypeClass() == Elaborated; 3759e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor } 3760465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static bool classof(const ElaboratedType *T) { return true; } 3761e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor}; 3762e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 37634a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// \brief Represents a qualified type name for which the type name is 37644a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent. 3765d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor/// 37664a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// DependentNameType represents a class of dependent types that involve a 37674a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent nested-name-specifier (e.g., "T::") followed by a (dependent) 37684a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// name of a type. The DependentNameType may start with a "typename" (for a 37694a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// typename-specifier), "class", "struct", "union", or "enum" (for a 37704a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent elaborated-type-specifier), or nothing (in contexts where we 37714a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// know that we must be referring to a type, e.g., in a base class specifier). 3772465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass DependentNameType : public TypeWithKeyword, public llvm::FoldingSetNode { 3773465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3774d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief The nested name specifier containing the qualifier. 3775d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *NNS; 3776d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3777d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief The type that this typename specifier refers to. 377833500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name; 3779d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37804a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType(ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS, 37814a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const IdentifierInfo *Name, QualType CanonType) 378235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : TypeWithKeyword(Keyword, DependentName, CanonType, /*Dependent=*/true, 3783d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 3784d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NNS->containsUnexpandedParameterPack()), 3785465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS(NNS), Name(Name) { 37861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(NNS->isDependent() && 37874714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor "DependentNameType requires a dependent nested-name-specifier"); 3788d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3790d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor friend class ASTContext; // ASTContext creates these 3791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregorpublic: 3793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief Retrieve the qualification on this type. 3794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *getQualifier() const { return NNS; } 3795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37961734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// \brief Retrieve the type named by the typename specifier as an 37971734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// identifier. 37981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// 37991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// This routine will return a non-NULL identifier pointer when the 38001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// form of the original typename was terminated by an identifier, 38011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// e.g., "typename T::type". 38021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const IdentifierInfo *getIdentifier() const { 380333500955d731c73717af52088b7fc0e7a85681e7John McCall return Name; 38041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 3805d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3806bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3807bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3808bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3809d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3810465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Profile(ID, getKeyword(), NNS, Name); 3811d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3812d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 38134a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, ElaboratedTypeKeyword Keyword, 381433500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS, const IdentifierInfo *Name) { 38154a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ID.AddInteger(Keyword); 3816d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor ID.AddPointer(NNS); 381733500955d731c73717af52088b7fc0e7a85681e7John McCall ID.AddPointer(Name); 3818d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3819d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 38201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 38214714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor return T->getTypeClass() == DependentName; 3822d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 38234714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor static bool classof(const DependentNameType *T) { return true; } 3824d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor}; 3825d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 382633500955d731c73717af52088b7fc0e7a85681e7John McCall/// DependentTemplateSpecializationType - Represents a template 382733500955d731c73717af52088b7fc0e7a85681e7John McCall/// specialization type whose template cannot be resolved, e.g. 382833500955d731c73717af52088b7fc0e7a85681e7John McCall/// A<T>::template B<T> 382933500955d731c73717af52088b7fc0e7a85681e7John McCallclass DependentTemplateSpecializationType : 383033500955d731c73717af52088b7fc0e7a85681e7John McCall public TypeWithKeyword, public llvm::FoldingSetNode { 383133500955d731c73717af52088b7fc0e7a85681e7John McCall 383233500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief The nested name specifier containing the qualifier. 383333500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS; 383433500955d731c73717af52088b7fc0e7a85681e7John McCall 383533500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief The identifier of the template. 383633500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name; 383733500955d731c73717af52088b7fc0e7a85681e7John McCall 383833500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief - The number of template arguments named in this class 383933500955d731c73717af52088b7fc0e7a85681e7John McCall /// template specialization. 384033500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs; 384133500955d731c73717af52088b7fc0e7a85681e7John McCall 384233500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *getArgBuffer() const { 384333500955d731c73717af52088b7fc0e7a85681e7John McCall return reinterpret_cast<const TemplateArgument*>(this+1); 384433500955d731c73717af52088b7fc0e7a85681e7John McCall } 384533500955d731c73717af52088b7fc0e7a85681e7John McCall TemplateArgument *getArgBuffer() { 384633500955d731c73717af52088b7fc0e7a85681e7John McCall return reinterpret_cast<TemplateArgument*>(this+1); 384733500955d731c73717af52088b7fc0e7a85681e7John McCall } 384833500955d731c73717af52088b7fc0e7a85681e7John McCall 3849ef99001908e799c388f1363b1e607dad5f5b57d3John McCall DependentTemplateSpecializationType(ElaboratedTypeKeyword Keyword, 385033500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS, 385133500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 385233500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs, 385333500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *Args, 385433500955d731c73717af52088b7fc0e7a85681e7John McCall QualType Canon); 385533500955d731c73717af52088b7fc0e7a85681e7John McCall 385633500955d731c73717af52088b7fc0e7a85681e7John McCall friend class ASTContext; // ASTContext creates these 385733500955d731c73717af52088b7fc0e7a85681e7John McCall 385833500955d731c73717af52088b7fc0e7a85681e7John McCallpublic: 385933500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *getQualifier() const { return NNS; } 386033500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *getIdentifier() const { return Name; } 386133500955d731c73717af52088b7fc0e7a85681e7John McCall 386233500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief Retrieve the template arguments. 386333500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *getArgs() const { 386433500955d731c73717af52088b7fc0e7a85681e7John McCall return getArgBuffer(); 386533500955d731c73717af52088b7fc0e7a85681e7John McCall } 386633500955d731c73717af52088b7fc0e7a85681e7John McCall 386733500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief Retrieve the number of template arguments. 386833500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned getNumArgs() const { return NumArgs; } 386933500955d731c73717af52088b7fc0e7a85681e7John McCall 387033500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument &getArg(unsigned Idx) const; // in TemplateBase.h 387133500955d731c73717af52088b7fc0e7a85681e7John McCall 387233500955d731c73717af52088b7fc0e7a85681e7John McCall typedef const TemplateArgument * iterator; 387333500955d731c73717af52088b7fc0e7a85681e7John McCall iterator begin() const { return getArgs(); } 387433500955d731c73717af52088b7fc0e7a85681e7John McCall iterator end() const; // inline in TemplateBase.h 387533500955d731c73717af52088b7fc0e7a85681e7John McCall 387633500955d731c73717af52088b7fc0e7a85681e7John McCall bool isSugared() const { return false; } 387733500955d731c73717af52088b7fc0e7a85681e7John McCall QualType desugar() const { return QualType(this, 0); } 387833500955d731c73717af52088b7fc0e7a85681e7John McCall 38794ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context) { 388033500955d731c73717af52088b7fc0e7a85681e7John McCall Profile(ID, Context, getKeyword(), NNS, Name, NumArgs, getArgs()); 388133500955d731c73717af52088b7fc0e7a85681e7John McCall } 388233500955d731c73717af52088b7fc0e7a85681e7John McCall 388333500955d731c73717af52088b7fc0e7a85681e7John McCall static void Profile(llvm::FoldingSetNodeID &ID, 38844ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context, 388533500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword, 388633500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *Qualifier, 388733500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 388833500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs, 388933500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *Args); 389033500955d731c73717af52088b7fc0e7a85681e7John McCall 389133500955d731c73717af52088b7fc0e7a85681e7John McCall static bool classof(const Type *T) { 389233500955d731c73717af52088b7fc0e7a85681e7John McCall return T->getTypeClass() == DependentTemplateSpecialization; 389333500955d731c73717af52088b7fc0e7a85681e7John McCall } 389433500955d731c73717af52088b7fc0e7a85681e7John McCall static bool classof(const DependentTemplateSpecializationType *T) { 389533500955d731c73717af52088b7fc0e7a85681e7John McCall return true; 389633500955d731c73717af52088b7fc0e7a85681e7John McCall } 389733500955d731c73717af52088b7fc0e7a85681e7John McCall}; 389833500955d731c73717af52088b7fc0e7a85681e7John McCall 38997536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \brief Represents a pack expansion of types. 39007536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 39017536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Pack expansions are part of C++0x variadic templates. A pack 39027536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// expansion contains a pattern, which itself contains one or more 39037536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// "unexpanded" parameter packs. When instantiated, a pack expansion 39047536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// produces a series of types, each instantiated from the pattern of 39057536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// the expansion, where the Ith instantiation of the pattern uses the 39067536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Ith arguments bound to each of the unexpanded parameter packs. The 39077536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// pack expansion is considered to "expand" these unexpanded 39087536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// parameter packs. 39097536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 39107536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \code 39117536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// template<typename ...Types> struct tuple; 39127536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 39137536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// template<typename ...Types> 39147536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// struct tuple_of_references { 39157536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// typedef tuple<Types&...> type; 39167536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// }; 39177536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \endcode 39187536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 39197536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Here, the pack expansion \c Types&... is represented via a 39207536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// PackExpansionType whose pattern is Types&. 39217536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregorclass PackExpansionType : public Type, public llvm::FoldingSetNode { 39227536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// \brief The pattern of the pack expansion. 39237536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType Pattern; 39247536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3925cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// \brief The number of expansions that this pack expansion will 3926cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// generate when substituted (+1), or indicates that 3927cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// 3928cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// This field will only have a non-zero value when some of the parameter 3929cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// packs that occur within the pattern have been substituted but others have 3930cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// not. 3931cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor unsigned NumExpansions; 3932cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 3933cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor PackExpansionType(QualType Pattern, QualType Canon, 3934cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions) 39357536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor : Type(PackExpansion, Canon, /*Dependent=*/true, 39367536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /*VariableModified=*/Pattern->isVariablyModifiedType(), 39377536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 3938cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor Pattern(Pattern), 3939cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor NumExpansions(NumExpansions? *NumExpansions + 1: 0) { } 39407536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39417536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor friend class ASTContext; // ASTContext creates these 3942cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 39437536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregorpublic: 39447536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// \brief Retrieve the pattern of this pack expansion, which is the 39457536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// type that will be repeatedly instantiated when instantiating the 39467536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// pack expansion itself. 39477536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType getPattern() const { return Pattern; } 39487536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3949cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// \brief Retrieve the number of expansions that this pack expansion will 3950cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// generate, if known. 3951cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> getNumExpansions() const { 3952cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor if (NumExpansions) 3953cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor return NumExpansions - 1; 3954cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 3955cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor return llvm::Optional<unsigned>(); 3956cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor } 3957cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 39587536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor bool isSugared() const { return false; } 39597536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType desugar() const { return QualType(this, 0); } 39607536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39617536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3962cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor Profile(ID, getPattern(), getNumExpansions()); 39637536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39647536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3965cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, QualType Pattern, 3966cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions) { 39677536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor ID.AddPointer(Pattern.getAsOpaquePtr()); 3968cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor ID.AddBoolean(NumExpansions); 3969cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor if (NumExpansions) 3970cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor ID.AddInteger(*NumExpansions); 39717536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39727536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39737536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor static bool classof(const Type *T) { 39747536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor return T->getTypeClass() == PackExpansion; 39757536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39767536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor static bool classof(const PackExpansionType *T) { 39777536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor return true; 39787536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39797536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor}; 39807536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3981c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCObjectType - Represents a class type in Objective C. 3982c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// Every Objective C type is a combination of a base type and a 3983c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// list of protocols. 3984c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3985c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// Given the following declarations: 3986c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// @class C; 3987c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// @protocol P; 3988c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3989c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 'C' is an ObjCInterfaceType C. It is sugar for an ObjCObjectType 3990c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// with base C and no protocols. 3991c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3992c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 'C<P>' is an ObjCObjectType with base C and protocol list [P]. 3993c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3994e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 'id' is a TypedefType which is sugar for an ObjCPointerType whose 3995e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// pointee is an ObjCObjectType with base BuiltinType::ObjCIdType 3996e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// and no protocols. 3997c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3998e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 'id<P>' is an ObjCPointerType whose pointee is an ObjCObjecType 3999e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// with base BuiltinType::ObjCIdType and protocol list [P]. Eventually 4000e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// this should get its own sugar class to better represent the source. 4001c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCObjectType : public Type { 4002b870b88df784c2940efce448ebfaf54dece14666John McCall // ObjCObjectType.NumProtocols - the number of protocols stored 4003b870b88df784c2940efce448ebfaf54dece14666John McCall // after the ObjCObjectPointerType node. 400471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // 400571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // These protocols are those written directly on the type. If 400671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // protocol qualifiers ever become additive, the iterators will need 400771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // to get kindof complicated. 400871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // 400971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // In the canonical object type, these are sorted alphabetically 401071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // and uniqued. 4011c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff 4012c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// Either a BuiltinType or an InterfaceType or sugar for either. 4013c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType BaseType; 4014c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4015c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *getProtocolStorage() const { 4016c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return const_cast<ObjCObjectType*>(this)->getProtocolStorage(); 4017c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4018c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4019c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl **getProtocolStorage(); 4020c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4021c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallprotected: 4022c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectType(QualType Canonical, QualType Base, 4023c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *Protocols, unsigned NumProtocols); 4024c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4025c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall enum Nonce_ObjCInterface { Nonce_ObjCInterface }; 4026c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectType(enum Nonce_ObjCInterface) 4027d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(ObjCInterface, QualType(), false, false, false), 402871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall BaseType(QualType(this_(), 0)) { 4029b870b88df784c2940efce448ebfaf54dece14666John McCall ObjCObjectTypeBits.NumProtocols = 0; 403071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 4031c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff 40323536b443bc50d58a79f14fca9b6842541a434854Steve Naroffpublic: 4033e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getBaseType - Gets the base type of this object type. This is 4034e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// always (possibly sugar for) one of: 4035e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - the 'id' builtin type (as opposed to the 'id' type visible to the 4036e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// user, which is a typedef for an ObjCPointerType) 4037e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - the 'Class' builtin type (same caveat) 4038e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - an ObjCObjectType (currently always an ObjCInterfaceType) 4039c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType getBaseType() const { return BaseType; } 404071842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek 4041c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCId() const { 4042c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getBaseType()->isSpecificBuiltinType(BuiltinType::ObjCId); 4043c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4044c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCClass() const { 4045c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getBaseType()->isSpecificBuiltinType(BuiltinType::ObjCClass); 4046c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4047c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedId() const { return qual_empty() && isObjCId(); } 4048c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedClass() const { return qual_empty() && isObjCClass(); } 4049c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedIdOrClass() const { 4050c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!qual_empty()) return false; 4051c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const BuiltinType *T = getBaseType()->getAs<BuiltinType>()) 4052c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getKind() == BuiltinType::ObjCId || 4053c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T->getKind() == BuiltinType::ObjCClass; 4054c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return false; 4055c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4056c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCQualifiedId() const { return !qual_empty() && isObjCId(); } 4057c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCQualifiedClass() const { return !qual_empty() && isObjCClass(); } 4058c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4059c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// Gets the interface declaration for this object type, if the base type 4060c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// really is an interface. 4061c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceDecl *getInterface() const; 4062c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4063c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall typedef ObjCProtocolDecl * const *qual_iterator; 4064c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4065c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_begin() const { return getProtocolStorage(); } 4066c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_end() const { return qual_begin() + getNumProtocols(); } 4067c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4068c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool qual_empty() const { return getNumProtocols() == 0; } 40691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4070c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff /// getNumProtocols - Return the number of qualifying protocols in this 4071c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff /// interface type, or 0 if there are none. 4072b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getNumProtocols() const { return ObjCObjectTypeBits.NumProtocols; } 407314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4074c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// \brief Fetch a protocol by index. 407573dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor ObjCProtocolDecl *getProtocol(unsigned I) const { 407673dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor assert(I < getNumProtocols() && "Out-of-range protocol access"); 407773dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor return qual_begin()[I]; 407873dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor } 407973dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 4080bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 4081bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 4082bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 4083c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static bool classof(const Type *T) { 4084c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getTypeClass() == ObjCObject || 4085c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T->getTypeClass() == ObjCInterface; 4086c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4087c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static bool classof(const ObjCObjectType *) { return true; } 4088c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall}; 4089c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4090c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCObjectTypeImpl - A class providing a concrete implementation 4091c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// of ObjCObjectType, so as to not increase the footprint of 4092c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCInterfaceType. Code outside of ASTContext and the core type 4093c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// system should not reference this type. 4094c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCObjectTypeImpl : public ObjCObjectType, public llvm::FoldingSetNode { 4095c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall friend class ASTContext; 4096c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4097c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // If anyone adds fields here, ObjCObjectType::getProtocolStorage() 4098c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // will need to be modified. 4099c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4100c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypeImpl(QualType Canonical, QualType Base, 4101c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *Protocols, 4102c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned NumProtocols) 4103c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall : ObjCObjectType(Canonical, Base, Protocols, NumProtocols) {} 4104c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4105c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallpublic: 4106c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff void Profile(llvm::FoldingSetNodeID &ID); 41071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, 4108c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType Base, 4109c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl *const *protocols, 4110c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned NumProtocols); 4111c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall}; 41121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4113c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline ObjCProtocolDecl **ObjCObjectType::getProtocolStorage() { 4114c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return reinterpret_cast<ObjCProtocolDecl**>( 4115c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static_cast<ObjCObjectTypeImpl*>(this) + 1); 4116c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall} 4117c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4118c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCInterfaceType - Interfaces are the core concept in Objective-C for 4119c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// object oriented design. They basically correspond to C++ classes. There 4120c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// are two kinds of interface types, normal interfaces like "NSString" and 4121c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// qualified interfaces, which are qualified with a protocol list like 4122c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// "NSString<NSCopyable, NSAmazing>". 4123e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 4124e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// ObjCInterfaceType guarantees the following properties when considered 4125e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// as a subtype of its superclass, ObjCObjectType: 4126e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// - There are no protocol qualifiers. To reinforce this, code which 4127e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// tries to invoke the protocol methods via an ObjCInterfaceType will 4128e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// fail to compile. 4129e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// - It is its own base type. That is, if T is an ObjCInterfaceType*, 4130e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// T->getBaseType() == QualType(T, 0). 4131c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCInterfaceType : public ObjCObjectType { 4132c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceDecl *Decl; 4133c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4134c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceType(const ObjCInterfaceDecl *D) 4135c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall : ObjCObjectType(Nonce_ObjCInterface), 4136c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Decl(const_cast<ObjCInterfaceDecl*>(D)) {} 4137c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall friend class ASTContext; // ASTContext creates these. 41381fb0caaa7bef765b85972274e3b434af2572c141John McCall 4139c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallpublic: 4140e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getDecl - Get the declaration of this interface. 4141deacbdca554298ccdf636f19c6094a8825ec6b34Douglas Gregor ObjCInterfaceDecl *getDecl() const { return Decl; } 4142c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4143c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isSugared() const { return false; } 4144c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType desugar() const { return QualType(this, 0); } 41450b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 41461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 41471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ObjCInterface; 41483536b443bc50d58a79f14fca9b6842541a434854Steve Naroff } 4149a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek static bool classof(const ObjCInterfaceType *) { return true; } 4150c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4151c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Nonsense to "hide" certain members of ObjCObjectType within this 4152c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // class. People asking for protocols on an ObjCInterfaceType are 4153c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // not going to get what they want: ObjCInterfaceTypes are 4154c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // guaranteed to have no protocols. 4155c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall enum { 4156c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator, 4157c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_begin, 4158c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_end, 4159c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getNumProtocols, 4160c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getProtocol 4161c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall }; 41623536b443bc50d58a79f14fca9b6842541a434854Steve Naroff}; 41633536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 4164c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline ObjCInterfaceDecl *ObjCObjectType::getInterface() const { 4165c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCInterfaceType *T = 4166c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getBaseType()->getAs<ObjCInterfaceType>()) 4167c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getDecl(); 4168c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return 0; 4169c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall} 4170c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4171e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// ObjCObjectPointerType - Used to represent a pointer to an 4172e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// Objective C object. These are constructed from pointer 4173e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// declarators when the pointee type is an ObjCObjectType (or sugar 4174e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// for one). In addition, the 'id' and 'Class' types are typedefs 4175e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// for these, and the protocol-qualified types 'id<P>' and 'Class<P>' 4176e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// are translated into these. 417714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff/// 4178e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// Pointers to pointers to Objective C objects are still PointerTypes; 4179e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// only the first level of pointer gets it own type implementation. 418014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffclass ObjCObjectPointerType : public Type, public llvm::FoldingSetNode { 4181e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall QualType PointeeType; 41821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4183c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerType(QualType Canonical, QualType Pointee) 4184d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(ObjCObjectPointer, Canonical, false, false, false), 4185c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall PointeeType(Pointee) {} 418614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff friend class ASTContext; // ASTContext creates these. 41871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 418814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffpublic: 4189e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getPointeeType - Gets the type pointed to by this ObjC pointer. 4190e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// The result will always be an ObjCObjectType or sugar thereof. 419114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff QualType getPointeeType() const { return PointeeType; } 419214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4193e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getObjCObjectType - Gets the type pointed to by this ObjC 4194e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// pointer. This method always returns non-null. 4195e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4196e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// This method is equivalent to getPointeeType() except that 4197e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// it discards any typedefs (or other sugar) between this 4198e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type and the "outermost" object type. So for: 4199e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// @class A; @protocol P; @protocol Q; 4200e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A<P> AP; 4201e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A A1; 4202e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A1<P> A1P; 4203e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A1P<Q> A1PQ; 4204e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A*', getObjectType() will return 'A'. 4205e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A<P>*', getObjectType() will return 'A<P>'. 4206e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'AP*', getObjectType() will return 'A<P>'. 4207e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1*', getObjectType() will return 'A'. 4208e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1<P>*', getObjectType() will return 'A1<P>'. 4209e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1P*', getObjectType() will return 'A1<P>'. 4210e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1PQ*', getObjectType() will return 'A1<Q>', because 4211e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// adding protocols to a protocol-qualified base discards the 4212e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// old qualifiers (for now). But if it didn't, getObjectType() 4213e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// would return 'A1P<Q>' (and we'd have to make iterating over 4214e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// qualifiers more complicated). 4215c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *getObjectType() const { 4216d0370f59e79702ac908c81bf556519f91e9ca297John McCall return PointeeType->castAs<ObjCObjectType>(); 4217c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4218c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4219e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getInterfaceType - If this pointer points to an Objective C 4220e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// @interface type, gets the type for that interface. Any protocol 4221e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// qualifiers on the interface are ignored. 4222e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4223e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \return null if the base type for this pointer is 'id' or 'Class' 42241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ObjCInterfaceType *getInterfaceType() const { 4225c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getBaseType()->getAs<ObjCInterfaceType>(); 422614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4227e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4228e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getInterfaceDecl - If this pointer points to an Objective @interface 4229e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type, gets the declaration for that interface. 4230e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4231e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \return null if the base type for this pointer is 'id' or 'Class' 423214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCInterfaceDecl *getInterfaceDecl() const { 4233e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall return getObjectType()->getInterface(); 423414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4235e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4236e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCIdType - True if this is equivalent to the 'id' type, i.e. if 4237e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// its object type is the primitive 'id' type with no protocols. 423814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCIdType() const { 4239c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCUnqualifiedId(); 424014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4241e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4242e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCClassType - True if this is equivalent to the 'Class' type, 4243e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// i.e. if its object tive is the primitive 'Class' type with no protocols. 424414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCClassType() const { 4245c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCUnqualifiedClass(); 4246de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42478d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 4248e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCQualifiedIdType - True if this is equivalent to 'id<P>' for some 4249e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// non-empty set of protocols. 42501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isObjCQualifiedIdType() const { 4251c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCQualifiedId(); 4252de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 4253e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4254e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCQualifiedClassType - True if this is equivalent to 'Class<P>' for 4255e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// some non-empty set of protocols. 4256470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff bool isObjCQualifiedClassType() const { 4257c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCQualifiedClass(); 425814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4259e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4260e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// An iterator over the qualifiers on the object type. Provided 4261e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// for convenience. This will always iterate over the full set of 4262e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// protocols on a type, not just those provided directly. 4263c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall typedef ObjCObjectType::qual_iterator qual_iterator; 426414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 426571842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek qual_iterator qual_begin() const { 4266c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->qual_begin(); 426771842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek } 4268c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_end() const { 4269c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->qual_end(); 427071842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek } 4271c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool qual_empty() const { return getObjectType()->qual_empty(); } 427214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4273e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getNumProtocols - Return the number of qualifying protocols on 4274e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// the object type. 4275c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned getNumProtocols() const { 4276c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getNumProtocols(); 4277c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 427814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4279e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \brief Retrieve a qualifying protocol by index on the object 4280e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type. 428173dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor ObjCProtocolDecl *getProtocol(unsigned I) const { 4282c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getProtocol(I); 428373dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor } 428473dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 4285bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 4286bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 4287bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 4288e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall void Profile(llvm::FoldingSetNodeID &ID) { 4289e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall Profile(ID, getPointeeType()); 4290e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall } 4291c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, QualType T) { 4292c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ID.AddPointer(T.getAsOpaquePtr()); 4293c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 42941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 42951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ObjCObjectPointer; 429614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 429714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff static bool classof(const ObjCObjectPointerType *) { return true; } 429814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff}; 42991bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 43000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// A qualifier set is used to build a set of qualifiers. 43010953e767ff7817f97b3ab20896b229891eeff45bJohn McCallclass QualifierCollector : public Qualifiers { 43020953e767ff7817f97b3ab20896b229891eeff45bJohn McCallpublic: 430349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall QualifierCollector(Qualifiers Qs = Qualifiers()) : Qualifiers(Qs) {} 43040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Collect any qualifiers on the given type and return an 43063b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// unqualified type. The qualifiers are assumed to be consistent 43073b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// with those already in the type. 43083b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *strip(QualType type) { 43093b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall addFastQualifiers(type.getLocalFastQualifiers()); 43103b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!type.hasLocalNonFastQualifiers()) 43113b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return type.getTypePtrUnsafe(); 43123b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ExtQuals *extQuals = type.getExtQualsUnsafe(); 43143b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall addConsistentQualifiers(extQuals->getQualifiers()); 43153b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return extQuals->getBaseType(); 43160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 43170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Apply the collected qualifiers to the given type. 43194ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad QualType apply(const ASTContext &Context, QualType QT) const; 43200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Apply the collected qualifiers to the given type. 43224ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad QualType apply(const ASTContext &Context, const Type* T) const; 43230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall}; 43240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4326611c1fff195d32df97706e0920c92468b2509900Chris Lattner// Inline function definitions. 43275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 43283b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const Type *QualType::getTypePtr() const { 43293b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getCommonPtr()->BaseType; 43303b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43313b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43323b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const Type *QualType::getTypePtrOrNull() const { 43333b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return (isNull() ? 0 : getCommonPtr()->BaseType); 43343b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43353b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43363b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline SplitQualType QualType::split() const { 43373b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!hasLocalNonFastQualifiers()) 43383b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return SplitQualType(getTypePtrUnsafe(), 43393b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers::fromFastMask(getLocalFastQualifiers())); 43403b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43413b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ExtQuals *eq = getExtQualsUnsafe(); 43423b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers qs = eq->getQualifiers(); 43433b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall qs.addFastQualifiers(getLocalFastQualifiers()); 43443b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return SplitQualType(eq->getBaseType(), qs); 43453b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43463b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43473b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline Qualifiers QualType::getLocalQualifiers() const { 43483b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals; 43493b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (hasLocalNonFastQualifiers()) 43503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals = getExtQualsUnsafe()->getQualifiers(); 43513b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals.addFastQualifiers(getLocalFastQualifiers()); 43523b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return Quals; 43533b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43543b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43553b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline Qualifiers QualType::getQualifiers() const { 43563b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers quals = getCommonPtr()->CanonicalType.getLocalQualifiers(); 43573b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall quals.addFastQualifiers(getLocalFastQualifiers()); 43583b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return quals; 43593b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43603b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43613b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline unsigned QualType::getCVRQualifiers() const { 43623b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall unsigned cvr = getCommonPtr()->CanonicalType.getLocalCVRQualifiers(); 43633b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall cvr |= getLocalCVRQualifiers(); 43643b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return cvr; 43653b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43663b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43673b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline QualType QualType::getCanonicalType() const { 43683b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall QualType canon = getCommonPtr()->CanonicalType; 43693b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return canon.withFastQualifiers(getLocalFastQualifiers()); 43703b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43713b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 4372467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCallinline bool QualType::isCanonical() const { 43733b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getTypePtr()->isCanonicalUnqualified(); 4374467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall} 4375467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall 437654e14c4db764c0636160d26c5bbf491637c83a76John McCallinline bool QualType::isCanonicalAsParam() const { 43773b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!isCanonical()) return false; 4378a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (hasLocalQualifiers()) return false; 4379745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian 438054e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *T = getTypePtr(); 43813b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (T->isVariablyModifiedType() && T->hasSizedVLAType()) 43823b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return false; 43833b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43843b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return !isa<FunctionType>(T) && !isa<ArrayType>(T); 438554e14c4db764c0636160d26c5bbf491637c83a76John McCall} 438654e14c4db764c0636160d26c5bbf491637c83a76John McCall 4387fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isConstQualified() const { 4388fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalConstQualified() || 43893b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalConstQualified(); 4390fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4391fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4392fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isRestrictQualified() const { 4393fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalRestrictQualified() || 43943b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalRestrictQualified(); 4395fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4396fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4397fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4398fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isVolatileQualified() const { 4399fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalVolatileQualified() || 44003b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalVolatileQualified(); 4401fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4402fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4403fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::hasQualifiers() const { 4404fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return hasLocalQualifiers() || 44053b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.hasLocalQualifiers(); 4406fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 440762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 440862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline QualType QualType::getUnqualifiedType() const { 440962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall if (!getTypePtr()->getCanonicalTypeInternal().hasLocalQualifiers()) 441062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return QualType(getTypePtr(), 0); 441162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 441262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return QualType(getSplitUnqualifiedTypeImpl(*this).first, 0); 441362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall} 441462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 441562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline SplitQualType QualType::getSplitUnqualifiedType() const { 441662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall if (!getTypePtr()->getCanonicalTypeInternal().hasLocalQualifiers()) 441762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return split(); 441862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 441962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return getSplitUnqualifiedTypeImpl(*this); 4420fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4421fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 442249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalConst() { 442349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Const); 44240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 44250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 442649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalRestrict() { 442749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Restrict); 44280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 44290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 443049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalVolatile() { 443149f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Volatile); 44320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 44330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 443449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalCVRQualifiers(unsigned Mask) { 44356b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall assert(!(Mask & ~Qualifiers::CVRMask) && "mask has non-CVR bits"); 4436c3c0af36bac3d71f61dd758585ab307892545de4Douglas Gregor assert((int)Qualifiers::CVRMask == (int)Qualifiers::FastMask); 44370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Fast path: we don't need to touch the slow qualifiers. 443949f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Mask); 4440ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 4441ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 4442ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb/// getAddressSpace - Return the address space of this type. 4443ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lambinline unsigned QualType::getAddressSpace() const { 44443b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getQualifiers().getAddressSpace(); 4445ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 4446611c1fff195d32df97706e0920c92468b2509900Chris Lattner 4447d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// getObjCGCAttr - Return the gc attribute of this type. 44480953e767ff7817f97b3ab20896b229891eeff45bJohn McCallinline Qualifiers::GC QualType::getObjCGCAttr() const { 44493b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getQualifiers().getObjCGCAttr(); 4450d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 44512455636163fdd18581d7fdae816433f886d88213Mike Stump 4452264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolainline FunctionType::ExtInfo getFunctionExtInfo(const Type &t) { 4453264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola if (const PointerType *PT = t.getAs<PointerType>()) { 4454183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const FunctionType *FT = PT->getPointeeType()->getAs<FunctionType>()) 4455264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FT->getExtInfo(); 4456264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } else if (const FunctionType *FT = t.getAs<FunctionType>()) 4457264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FT->getExtInfo(); 44582455636163fdd18581d7fdae816433f886d88213Mike Stump 4459264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FunctionType::ExtInfo(); 44602455636163fdd18581d7fdae816433f886d88213Mike Stump} 44611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4462264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolainline FunctionType::ExtInfo getFunctionExtInfo(QualType t) { 4463264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getFunctionExtInfo(*t); 4464ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 4465ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 4466e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// isMoreQualifiedThan - Determine whether this type is more 4467e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// qualified than the Other type. For example, "const volatile int" 4468e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// is more qualified than "const int", "volatile int", and 4469e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// "int". However, it is not more qualified than "const volatile 4470e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int". 447162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline bool QualType::isMoreQualifiedThan(QualType other) const { 447262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall Qualifiers myQuals = getQualifiers(); 447362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall Qualifiers otherQuals = other.getQualifiers(); 447462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return (myQuals != otherQuals && myQuals.compatiblyIncludes(otherQuals)); 4475e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4476e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 4477e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// isAtLeastAsQualifiedAs - Determine whether this type is at last 4478e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// as qualified as the Other type. For example, "const volatile 4479e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int" is at least as qualified as "const int", "volatile int", 4480e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// "int", and "const volatile int". 448162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline bool QualType::isAtLeastAsQualifiedAs(QualType other) const { 448262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return getQualifiers().compatiblyIncludes(other.getQualifiers()); 4483e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4484e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 4485e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// getNonReferenceType - If Type is a reference type (e.g., const 4486e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int&), returns the type that the reference refers to ("const 4487e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int"). Otherwise, returns the type itself. This routine is used 4488e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// throughout Sema to implement C++ 5p6: 4489e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// 4490e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// If an expression initially has the type "reference to T" (8.3.2, 4491e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// 8.5.3), the type is adjusted to "T" prior to any further 4492e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// analysis, the expression designates the object or function 4493e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// denoted by the reference, and the expression is an lvalue. 4494e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregorinline QualType QualType::getNonReferenceType() const { 44956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RefType = (*this)->getAs<ReferenceType>()) 4496e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor return RefType->getPointeeType(); 4497e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor else 4498e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor return *this; 4499e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4500e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 45012b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregorinline bool QualType::isCForbiddenLValueType() const { 45022b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor return ((getTypePtr()->isVoidType() && !hasQualifiers()) || 45032b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor getTypePtr()->isFunctionType()); 45042b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor} 45052b1ad8b42bbbe00a1845e566f52f1941b8dbc725Douglas Gregor 4506aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \brief Tests whether the type is categorized as a fundamental type. 4507aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// 4508aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \returns True for types specified in C++0x [basic.fundamental]. 4509aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruthinline bool Type::isFundamentalType() const { 4510aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth return isVoidType() || 4511aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // FIXME: It's really annoying that we don't have an 4512aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // 'isArithmeticType()' which agrees with the standard definition. 4513aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth (isArithmeticType() && !isEnumeralType()); 4514aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth} 4515aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth 4516aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \brief Tests whether the type is categorized as a compound type. 4517aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// 4518aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \returns True for types specified in C++0x [basic.compound]. 4519aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruthinline bool Type::isCompoundType() const { 4520aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // C++0x [basic.compound]p1: 4521aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // Compound types can be constructed in the following ways: 4522aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- arrays of objects of a given type [...]; 4523aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth return isArrayType() || 4524aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- functions, which have parameters of given types [...]; 4525aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isFunctionType() || 4526aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- pointers to void or objects or functions [...]; 4527aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isPointerType() || 4528aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- references to objects or functions of a given type. [...] 4529aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isReferenceType() || 4530aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- classes containing a sequence of objects of various types, [...]; 4531aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isRecordType() || 4532aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- unions, which ar classes capable of containing objects of different types at different times; 4533aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isUnionType() || 4534aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- enumerations, which comprise a set of named constant values. [...]; 4535aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isEnumeralType() || 4536aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- pointers to non-static class members, [...]. 4537aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isMemberPointerType(); 4538aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth} 4539aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth 4540611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isFunctionType() const { 4541a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<FunctionType>(CanonicalType); 4542611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4543611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isPointerType() const { 4544a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<PointerType>(CanonicalType); 4545611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 454658f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroffinline bool Type::isAnyPointerType() const { 454758f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff return isPointerType() || isObjCObjectPointerType(); 454858f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff} 45495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffinline bool Type::isBlockPointerType() const { 4550a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<BlockPointerType>(CanonicalType); 45515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 4552bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattnerinline bool Type::isReferenceType() const { 4553a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ReferenceType>(CanonicalType); 4554bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner} 45557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlinline bool Type::isLValueReferenceType() const { 4556a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<LValueReferenceType>(CanonicalType); 45577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 45587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlinline bool Type::isRValueReferenceType() const { 4559a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<RValueReferenceType>(CanonicalType); 45607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 4561498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenekinline bool Type::isFunctionPointerType() const { 4562d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const PointerType *T = getAs<PointerType>()) 4563498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek return T->getPointeeType()->isFunctionType(); 4564498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek else 4565498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek return false; 4566498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek} 4567f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlinline bool Type::isMemberPointerType() const { 4568a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<MemberPointerType>(CanonicalType); 4569f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 4570f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlinline bool Type::isMemberFunctionPointerType() const { 45716217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const MemberPointerType* T = getAs<MemberPointerType>()) 45720bab0cdab751248ca389a5592bcb70eac5d39260John McCall return T->isMemberFunctionPointer(); 4573f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else 4574f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return false; 4575f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 4576db68e28c05a67735211e688009890cf834c22e75Douglas Gregorinline bool Type::isMemberDataPointerType() const { 4577db68e28c05a67735211e688009890cf834c22e75Douglas Gregor if (const MemberPointerType* T = getAs<MemberPointerType>()) 45780bab0cdab751248ca389a5592bcb70eac5d39260John McCall return T->isMemberDataPointer(); 4579db68e28c05a67735211e688009890cf834c22e75Douglas Gregor else 4580db68e28c05a67735211e688009890cf834c22e75Douglas Gregor return false; 4581db68e28c05a67735211e688009890cf834c22e75Douglas Gregor} 4582611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isArrayType() const { 4583a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ArrayType>(CanonicalType); 4584611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4585c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isConstantArrayType() const { 4586a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ConstantArrayType>(CanonicalType); 4587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4588c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isIncompleteArrayType() const { 4589a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<IncompleteArrayType>(CanonicalType); 4590c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4591c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isVariableArrayType() const { 4592a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<VariableArrayType>(CanonicalType); 4593c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4594898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorinline bool Type::isDependentSizedArrayType() const { 4595a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<DependentSizedArrayType>(CanonicalType); 4596898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 45973ff83dd534ccc828203670ce3f5125a4eb4199f8John McCallinline bool Type::isBuiltinType() const { 45983ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall return isa<BuiltinType>(CanonicalType); 45993ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall} 4600611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isRecordType() const { 4601a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<RecordType>(CanonicalType); 4602611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 46033ff83dd534ccc828203670ce3f5125a4eb4199f8John McCallinline bool Type::isEnumeralType() const { 46043ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall return isa<EnumType>(CanonicalType); 46053ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall} 4606f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattnerinline bool Type::isAnyComplexType() const { 4607a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ComplexType>(CanonicalType); 4608f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattner} 4609611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isVectorType() const { 4610a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<VectorType>(CanonicalType); 4611611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4612213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begemaninline bool Type::isExtVectorType() const { 4613a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ExtVectorType>(CanonicalType); 4614611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4615d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroffinline bool Type::isObjCObjectPointerType() const { 4616a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ObjCObjectPointerType>(CanonicalType); 4617d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 4618c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline bool Type::isObjCObjectType() const { 4619c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return isa<ObjCObjectType>(CanonicalType); 4620368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner} 4621569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregorinline bool Type::isObjCObjectOrInterfaceType() const { 4622569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor return isa<ObjCInterfaceType>(CanonicalType) || 4623569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor isa<ObjCObjectType>(CanonicalType); 4624569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor} 4625569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor 4626a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekinline bool Type::isObjCQualifiedIdType() const { 4627183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 4628d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return OPT->isObjCQualifiedIdType(); 4629d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return false; 4630d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian} 4631470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroffinline bool Type::isObjCQualifiedClassType() const { 4632183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 4633470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff return OPT->isObjCQualifiedClassType(); 4634470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff return false; 4635470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff} 463614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffinline bool Type::isObjCIdType() const { 4637183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 463814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return OPT->isObjCIdType(); 463914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return false; 464014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 464114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffinline bool Type::isObjCClassType() const { 4642183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 464314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return OPT->isObjCClassType(); 464414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return false; 464514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 464613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanianinline bool Type::isObjCSelType() const { 46478d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (const PointerType *OPT = getAs<PointerType>()) 46488d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return OPT->getPointeeType()->isSpecificBuiltinType(BuiltinType::ObjCSel); 464913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian return false; 465013dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian} 4651de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroffinline bool Type::isObjCBuiltinType() const { 465213dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian return isObjCIdType() || isObjCClassType() || isObjCSelType(); 4653de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff} 465472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregorinline bool Type::isTemplateTypeParmType() const { 4655a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<TemplateTypeParmType>(CanonicalType); 465672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 465772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 4658e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbarinline bool Type::isSpecificBuiltinType(unsigned K) const { 4659183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = getAs<BuiltinType>()) 4660e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar if (BT->getKind() == (BuiltinType::Kind) K) 4661e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return true; 4662e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return false; 4663e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar} 4664e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar 46652a984cad5ac3fdceeff2bd99daa7b90979313475John McCallinline bool Type::isPlaceholderType() const { 46662a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (const BuiltinType *BT = getAs<BuiltinType>()) 46672a984cad5ac3fdceeff2bd99daa7b90979313475John McCall return BT->isPlaceholderType(); 46682a984cad5ac3fdceeff2bd99daa7b90979313475John McCall return false; 46692a984cad5ac3fdceeff2bd99daa7b90979313475John McCall} 46702a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 4671864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCallinline bool Type::isSpecificPlaceholderType(unsigned K) const { 4672864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(this)) 4673864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return (BT->getKind() == (BuiltinType::Kind) K); 4674864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return false; 4675864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall} 4676864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 4677063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor/// \brief Determines whether this is a type for which one can define 4678063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor/// an overloaded operator. 4679063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregorinline bool Type::isOverloadableType() const { 4680063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor return isDependentType() || isRecordType() || isEnumeralType(); 4681904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor} 4682904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 4683bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth/// \brief Determines whether this type can decay to a pointer type. 4684bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruthinline bool Type::canDecayToPointerType() const { 4685bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth return isFunctionType() || isArrayType(); 4686bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth} 4687bc8d7f9fd4346cfcc285868be32b74e019a40f01Chandler Carruth 46888958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbarinline bool Type::hasPointerRepresentation() const { 46898958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar return (isPointerType() || isReferenceType() || isBlockPointerType() || 4690c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall isObjCObjectPointerType() || isNullPtrType()); 46918958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar} 46928958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar 4693820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanianinline bool Type::hasObjCPointerRepresentation() const { 4694c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return isObjCObjectPointerType(); 4695820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian} 4696820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian 4697d0370f59e79702ac908c81bf556519f91e9ca297John McCallinline const Type *Type::getBaseElementTypeUnsafe() const { 4698d0370f59e79702ac908c81bf556519f91e9ca297John McCall const Type *type = this; 4699d0370f59e79702ac908c81bf556519f91e9ca297John McCall while (const ArrayType *arrayType = type->getAsArrayTypeUnsafe()) 4700d0370f59e79702ac908c81bf556519f91e9ca297John McCall type = arrayType->getElementType().getTypePtr(); 4701d0370f59e79702ac908c81bf556519f91e9ca297John McCall return type; 4702d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4703d0370f59e79702ac908c81bf556519f91e9ca297John McCall 470422caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner/// Insertion operator for diagnostics. This allows sending QualType's into a 470522caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner/// diagnostic with <<. 470622caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattnerinline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 470722caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner QualType T) { 470822caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner DB.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()), 470922caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner Diagnostic::ak_qualtype); 471022caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner return DB; 471122caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner} 47121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 471347c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth/// Insertion operator for partial diagnostics. This allows sending QualType's 471447c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth/// into a diagnostic with <<. 471547c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruthinline const PartialDiagnostic &operator<<(const PartialDiagnostic &PD, 471647c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth QualType T) { 471747c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth PD.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()), 471847c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth Diagnostic::ak_qualtype); 471947c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth return PD; 472047c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth} 472147c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth 472289c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor// Helper class template that is used by Type::getAs to ensure that one does 472389c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor// not try to look through a qualified type to get to an array type. 472489c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregortemplate<typename T, 472589c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor bool isArrayType = (llvm::is_same<T, ArrayType>::value || 472689c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor llvm::is_base_of<ArrayType, T>::value)> 472789c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregorstruct ArrayType_cannot_be_used_with_getAs { }; 472889c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 472989c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregortemplate<typename T> 473089c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregorstruct ArrayType_cannot_be_used_with_getAs<T, true>; 473189c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 47321a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek/// Member-template getAs<specific type>'. 47331a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenektemplate <typename T> const T *Type::getAs() const { 473489c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor ArrayType_cannot_be_used_with_getAs<T> at; 473589c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor (void)at; 473689c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 47371a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // If this is directly a T type, return it. 47381a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek if (const T *Ty = dyn_cast<T>(this)) 47391a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek return Ty; 47401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47411a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // If the canonical form of this type isn't the right kind, reject it. 47420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<T>(CanonicalType)) 47431a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek return 0; 47441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this is a typedef for the type, strip the typedef off without 47461a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // losing all typedef information. 4747bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall return cast<T>(getUnqualifiedDesugaredType()); 47481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} 474922caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner 47503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const ArrayType *Type::getAsArrayTypeUnsafe() const { 47513b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If this is directly an array type, return it. 47523b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (const ArrayType *arr = dyn_cast<ArrayType>(this)) 47533b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return arr; 47543b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 47553b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If the canonical form of this type isn't the right kind, reject it. 47563b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!isa<ArrayType>(CanonicalType)) 47573b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return 0; 47583b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 47593b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If this is a typedef for the type, strip the typedef off without 47603b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // losing all typedef information. 47613b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return cast<ArrayType>(getUnqualifiedDesugaredType()); 47623b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 47633b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 4764d0370f59e79702ac908c81bf556519f91e9ca297John McCalltemplate <typename T> const T *Type::castAs() const { 4765d0370f59e79702ac908c81bf556519f91e9ca297John McCall ArrayType_cannot_be_used_with_getAs<T> at; 4766d0370f59e79702ac908c81bf556519f91e9ca297John McCall (void) at; 4767d0370f59e79702ac908c81bf556519f91e9ca297John McCall 4768d0370f59e79702ac908c81bf556519f91e9ca297John McCall assert(isa<T>(CanonicalType)); 4769d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const T *ty = dyn_cast<T>(this)) return ty; 4770d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<T>(getUnqualifiedDesugaredType()); 4771d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4772d0370f59e79702ac908c81bf556519f91e9ca297John McCall 4773d0370f59e79702ac908c81bf556519f91e9ca297John McCallinline const ArrayType *Type::castAsArrayTypeUnsafe() const { 4774d0370f59e79702ac908c81bf556519f91e9ca297John McCall assert(isa<ArrayType>(CanonicalType)); 4775d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const ArrayType *arr = dyn_cast<ArrayType>(this)) return arr; 4776d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<ArrayType>(getUnqualifiedDesugaredType()); 4777d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4778d0370f59e79702ac908c81bf556519f91e9ca297John McCall 47795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 47805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4782