Type.h revision a07398ed98ea2b55ad7a505a3aab18aed93b149f
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 852f85e193739c953358c865005855253af4f68a497John McCall /// \brief Determine whether this type has trivial copy-assignment semantics. 853f85e193739c953358c865005855253af4f68a497John McCall bool hasTrivialCopyAssignment(ASTContext &Context) const; 854f85e193739c953358c865005855253af4f68a497John McCall 855bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCallprivate: 856bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // These methods are implemented in a separate translation unit; 857bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // "static"-ize them to avoid creating temporary QualTypes in the 858bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall // caller. 859bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall static bool isConstant(QualType T, ASTContext& Ctx); 8604ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static QualType getDesugaredType(QualType T, const ASTContext &Context); 86149f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall static SplitQualType getSplitDesugaredType(QualType T); 86262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall static SplitQualType getSplitUnqualifiedTypeImpl(QualType type); 863075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static QualType IgnoreParens(QualType T); 8640d70d71ccbc4f7f59cadb759f61b7172a149676cJohn McCall static DestructionKind isDestructedTypeImpl(QualType type); 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end clang. 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Implement simplify_type for QualType, so that we can dyn_cast from QualType 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to a specific Type class. 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencertemplate<> struct simplify_type<const ::clang::QualType> { 873f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall typedef const ::clang::Type *SimpleType; 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static SimpleType getSimplifiedValue(const ::clang::QualType &Val) { 8754472fc641ea3069463798fb56a04043c28ea2910Douglas Gregor return Val.getTypePtr(); 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencertemplate<> struct simplify_type< ::clang::QualType> 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : public simplify_type<const ::clang::QualType> {}; 8801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8814e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner// Teach SmallPtrSet that QualType is "basically a pointer". 8824e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattnertemplate<> 883daae940507f2e93c6fa12e8062fa958e34cc2d1cChris Lattnerclass PointerLikeTypeTraits<clang::QualType> { 8844e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattnerpublic: 8854e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner static inline void *getAsVoidPointer(clang::QualType P) { 8864e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner return P.getAsOpaquePtr(); 8874e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner } 8884e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner static inline clang::QualType getFromVoidPointer(void *P) { 8894e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner return clang::QualType::getFromOpaquePtr(P); 8904e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner } 8910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Various qualifiers go in low bits. 8920eda3b31a672ea486fa92b9bc49a2c91be856b53Chris Lattner enum { NumLowBitsAvailable = 0 }; 8934e7072872e8e2ed76a4c6933424bffa253896e7eChris Lattner}; 8941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89573af669633e13c813f80cd15ecf3e6414778aee4Ted Kremenek} // end namespace llvm 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8993b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// \brief Base class that is common to both the \c ExtQuals and \c Type 9003b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// classes, which allows \c QualType to access the common fields between the 9013b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// two. 9023b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// 9033b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallclass ExtQualsTypeCommonBase { 9043b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQualsTypeCommonBase(const Type *baseType, QualType canon) 9053b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : BaseType(baseType), CanonicalType(canon) {} 9063b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9073b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief The "base" type of an extended qualifiers type (\c ExtQuals) or 9083b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// a self-referential pointer (for \c Type). 9093b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// 9103b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// This pointer allows an efficient mapping from a QualType to its 9113b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// underlying type pointer. 9123b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *const BaseType; 9133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9143b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief The canonical type of this type. A QualType. 9153b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall QualType CanonicalType; 9163b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9173b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class QualType; 9183b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class Type; 9193b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall friend class ExtQuals; 9203b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall}; 9213b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9223b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// ExtQuals - We can encode up to four bits in the low bits of a 9233b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// type pointer, but there are many more type qualifiers that we want 9243b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// to be able to apply to an arbitrary type. Therefore we have this 9253b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// struct, intended to be heap-allocated and used by QualType to 9263b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// store qualifiers. 9273b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// 9283b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// The current design tags the 'const', 'restrict', and 'volatile' qualifiers 9293b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// in three low bits on the QualType pointer; a fourth bit records whether 9303b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// the pointer is an ExtQuals node. The extended qualifiers (address spaces, 9313b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall/// Objective-C GC attributes) are much more rare. 9323b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallclass ExtQuals : public ExtQualsTypeCommonBase, public llvm::FoldingSetNode { 9333b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // NOTE: changing the fast qualifiers should be straightforward as 9343b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // long as you don't make 'const' non-fast. 9353b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 1. Qualifiers: 9363b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Modify the bitmasks (Qualifiers::TQ and DeclSpec::TQ). 9373b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // Fast qualifiers must occupy the low-order bits. 9383b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // b) Update Qualifiers::FastWidth and FastMask. 9393b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 2. QualType: 9403b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Update is{Volatile,Restrict}Qualified(), defined inline. 9413b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // b) Update remove{Volatile,Restrict}, defined near the end of 9423b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // this header. 9433b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // 3. ASTContext: 9443b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // a) Update get{Volatile,Restrict}Type. 9453b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9463b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// Quals - the immutable set of qualifiers applied by this 9473b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// node; always contains extended qualifiers. 9483b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals; 9493b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQuals *this_() { return this; } 9513b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9523b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallpublic: 9533b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ExtQuals(const Type *baseType, QualType canon, Qualifiers quals) 9543b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : ExtQualsTypeCommonBase(baseType, 9553b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall canon.isNull() ? QualType(this_(), 0) : canon), 9563b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals(quals) 9573b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall { 9583b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(Quals.hasNonFastQualifiers() 9593b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall && "ExtQuals created with no fast qualifiers"); 9603b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(!Quals.hasFastQualifiers() 9613b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall && "ExtQuals created with fast qualifiers"); 9623b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 9633b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9643b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers getQualifiers() const { return Quals; } 9653b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9663b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasObjCGCAttr() const { return Quals.hasObjCGCAttr(); } 9673b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers::GC getObjCGCAttr() const { return Quals.getObjCGCAttr(); } 9683b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 969f85e193739c953358c865005855253af4f68a497John McCall bool hasObjCLifetime() const { return Quals.hasObjCLifetime(); } 970f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime getObjCLifetime() const { 971f85e193739c953358c865005855253af4f68a497John McCall return Quals.getObjCLifetime(); 972f85e193739c953358c865005855253af4f68a497John McCall } 973f85e193739c953358c865005855253af4f68a497John McCall 9743b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasAddressSpace() const { return Quals.hasAddressSpace(); } 9753b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall unsigned getAddressSpace() const { return Quals.getAddressSpace(); } 9763b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9773b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *getBaseType() const { return BaseType; } 9783b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 9793b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallpublic: 9803b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall void Profile(llvm::FoldingSetNodeID &ID) const { 9813b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Profile(ID, getBaseType(), Quals); 9823b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 9833b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall static void Profile(llvm::FoldingSetNodeID &ID, 9843b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *BaseType, 9853b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals) { 9863b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall assert(!Quals.hasFastQualifiers() && "fast qualifiers in ExtQuals hash!"); 9873b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall ID.AddPointer(BaseType); 9883b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals.Profile(ID); 9893b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall } 9903b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall}; 9913b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 992c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// \brief The kind of C++0x ref-qualifier associated with a function type, 993c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// which determines whether a member function's "this" object can be an 994c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor/// lvalue, rvalue, or neither. 995c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregorenum RefQualifierKind { 996c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief No ref-qualifier was provided. 997c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_None = 0, 998c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief An lvalue ref-qualifier was provided (\c &). 999c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_LValue, 1000c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief An rvalue ref-qualifier was provided (\c &&). 1001c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RQ_RValue 1002c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor}; 1003c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Type - This is the base class of the type hierarchy. A central concept 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// with types is that each type always has a canonical type. A canonical type 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is the type with any typedef names stripped out of it or the types it 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// references. For example, consider: 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// typedef int foo; 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// typedef foo* bar; 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'int *' 'foo *' 'bar' 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// There will be a Type object created for 'int'. Since int is canonical, its 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// canonicaltype pointer points to itself. There is also a Type for 'foo' (a 101572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypedefType). Its CanonicalType pointer points to the 'int' Type. Next 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// there is a PointerType that represents 'int*', which, like 'int', is 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// canonical. Finally, there is a PointerType type for 'foo*' whose canonical 101872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// type is 'int*', and there is a TypedefType for 'bar', whose canonical type 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is also 'int*'. 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Non-canonical types are useful for emitting diagnostics, without losing 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// information about typedefs being used. Canonical types are useful for type 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// comparisons (they allow by-pointer equality tests) and useful for reasoning 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// about whether something has a particular form (e.g. is a function type), 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// because they implicitly, recursively, strip all typedefs out of a type. 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Types, once created, are immutable. 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10291ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregorclass Type : public ExtQualsTypeCommonBase { 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum TypeClass { 103272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) Class, 103327935ee59c30b0d8b610ab676aab8e65350af932John McCall#define LAST_TYPE(Class) TypeLast = Class, 103472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 103572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 103672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TagFirst = Record, TagLast = Enum 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 10381bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1040c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Type(const Type&); // DO NOT IMPLEMENT. 1041c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void operator=(const Type&); // DO NOT IMPLEMENT. 1042c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 1043b870b88df784c2940efce448ebfaf54dece14666John McCall /// Bitfields required by the Type class. 1044b870b88df784c2940efce448ebfaf54dece14666John McCall class TypeBitfields { 1045b870b88df784c2940efce448ebfaf54dece14666John McCall friend class Type; 1046b7b2688bab0eac053d3e2938b329c8e523fd252bJohn McCall template <class T> friend class TypePropertyCache; 104727935ee59c30b0d8b610ab676aab8e65350af932John McCall 1048b870b88df784c2940efce448ebfaf54dece14666John McCall /// TypeClass bitfield - Enum that specifies what subclass this belongs to. 1049b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned TC : 8; 1050b870b88df784c2940efce448ebfaf54dece14666John McCall 1051b870b88df784c2940efce448ebfaf54dece14666John McCall /// Dependent - Whether this type is a dependent type (C++ [temp.dep.type]). 1052b870b88df784c2940efce448ebfaf54dece14666John McCall /// Note that this should stay at the end of the ivars for Type so that 1053b870b88df784c2940efce448ebfaf54dece14666John McCall /// subclasses can pack their bitfields into the same word. 1054bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned Dependent : 1; 105560e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1056b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Whether this type is a variably-modified type (C99 6.7.5). 1057bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned VariablyModified : 1; 1058d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 1059d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this type contains an unexpanded parameter pack 1060d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// (for C++0x variadic templates). 1061d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor unsigned ContainsUnexpandedParameterPack : 1; 106235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 10631fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Nonzero if the cache (i.e. the bitfields here starting 10641fb0caaa7bef765b85972274e3b434af2572c141John McCall /// with 'Cache') is valid. If so, then this is a 10651fb0caaa7bef765b85972274e3b434af2572c141John McCall /// LangOptions::VisibilityMode+1. 10661fb0caaa7bef765b85972274e3b434af2572c141John McCall mutable unsigned CacheValidAndVisibility : 2; 106760e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1068b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Linkage of this type. 1069b870b88df784c2940efce448ebfaf54dece14666John McCall mutable unsigned CachedLinkage : 2; 107007a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1071b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief Whether this type involves and local or unnamed types. 1072bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet mutable unsigned CachedLocalOrUnnamed : 1; 1073db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor 1074b870b88df784c2940efce448ebfaf54dece14666John McCall /// \brief FromAST - Whether this type comes from an AST file. 1075bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet mutable unsigned FromAST : 1; 1076b870b88df784c2940efce448ebfaf54dece14666John McCall 10771fb0caaa7bef765b85972274e3b434af2572c141John McCall bool isCacheValid() const { 10781fb0caaa7bef765b85972274e3b434af2572c141John McCall return (CacheValidAndVisibility != 0); 10791fb0caaa7bef765b85972274e3b434af2572c141John McCall } 10801fb0caaa7bef765b85972274e3b434af2572c141John McCall Visibility getVisibility() const { 10811fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 10821fb0caaa7bef765b85972274e3b434af2572c141John McCall return static_cast<Visibility>(CacheValidAndVisibility-1); 10831fb0caaa7bef765b85972274e3b434af2572c141John McCall } 10841fb0caaa7bef765b85972274e3b434af2572c141John McCall Linkage getLinkage() const { 10851fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 10861fb0caaa7bef765b85972274e3b434af2572c141John McCall return static_cast<Linkage>(CachedLinkage); 10871fb0caaa7bef765b85972274e3b434af2572c141John McCall } 10881fb0caaa7bef765b85972274e3b434af2572c141John McCall bool hasLocalOrUnnamedType() const { 10891fb0caaa7bef765b85972274e3b434af2572c141John McCall assert(isCacheValid() && "getting linkage from invalid cache"); 10901fb0caaa7bef765b85972274e3b434af2572c141John McCall return CachedLocalOrUnnamed; 10911fb0caaa7bef765b85972274e3b434af2572c141John McCall } 1092b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1093d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor enum { NumTypeBits = 17 }; 1094b870b88df784c2940efce448ebfaf54dece14666John McCall 1095b870b88df784c2940efce448ebfaf54dece14666John McCallprotected: 1096b870b88df784c2940efce448ebfaf54dece14666John McCall // These classes allow subclasses to somewhat cleanly pack bitfields 1097b870b88df784c2940efce448ebfaf54dece14666John McCall // into Type. 1098b870b88df784c2940efce448ebfaf54dece14666John McCall 1099b870b88df784c2940efce448ebfaf54dece14666John McCall class ArrayTypeBitfields { 1100b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ArrayType; 1101b870b88df784c2940efce448ebfaf54dece14666John McCall 1102b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1103b870b88df784c2940efce448ebfaf54dece14666John McCall 1104b870b88df784c2940efce448ebfaf54dece14666John McCall /// IndexTypeQuals - CVR qualifiers from declarations like 1105b870b88df784c2940efce448ebfaf54dece14666John McCall /// 'int X[static restrict 4]'. For function parameters only. 1106b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned IndexTypeQuals : 3; 1107b870b88df784c2940efce448ebfaf54dece14666John McCall 1108b870b88df784c2940efce448ebfaf54dece14666John McCall /// SizeModifier - storage class qualifiers from declarations like 1109b870b88df784c2940efce448ebfaf54dece14666John McCall /// 'int X[static restrict 4]'. For function parameters only. 1110b870b88df784c2940efce448ebfaf54dece14666John McCall /// Actually an ArrayType::ArraySizeModifier. 1111b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned SizeModifier : 3; 1112b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1113b870b88df784c2940efce448ebfaf54dece14666John McCall 1114b870b88df784c2940efce448ebfaf54dece14666John McCall class BuiltinTypeBitfields { 1115b870b88df784c2940efce448ebfaf54dece14666John McCall friend class BuiltinType; 1116b870b88df784c2940efce448ebfaf54dece14666John McCall 1117b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1118b870b88df784c2940efce448ebfaf54dece14666John McCall 1119b870b88df784c2940efce448ebfaf54dece14666John McCall /// The kind (BuiltinType::Kind) of builtin type this is. 1120b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned Kind : 8; 1121b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1122b870b88df784c2940efce448ebfaf54dece14666John McCall 1123b870b88df784c2940efce448ebfaf54dece14666John McCall class FunctionTypeBitfields { 1124b870b88df784c2940efce448ebfaf54dece14666John McCall friend class FunctionType; 1125b870b88df784c2940efce448ebfaf54dece14666John McCall 1126b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1127b870b88df784c2940efce448ebfaf54dece14666John McCall 1128b870b88df784c2940efce448ebfaf54dece14666John McCall /// Extra information which affects how the function is called, like 1129b870b88df784c2940efce448ebfaf54dece14666John McCall /// regparm and the calling convention. 1130f85e193739c953358c865005855253af4f68a497John McCall unsigned ExtInfo : 9; 1131b870b88df784c2940efce448ebfaf54dece14666John McCall 1132e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall /// Whether the function is variadic. Only used by FunctionProtoType. 1133e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned Variadic : 1; 1134b870b88df784c2940efce448ebfaf54dece14666John McCall 1135b870b88df784c2940efce448ebfaf54dece14666John McCall /// TypeQuals - Used only by FunctionProtoType, put here to pack with the 1136b870b88df784c2940efce448ebfaf54dece14666John McCall /// other bitfields. 1137b870b88df784c2940efce448ebfaf54dece14666John McCall /// The qualifiers are part of FunctionProtoType because... 1138b870b88df784c2940efce448ebfaf54dece14666John McCall /// 1139b870b88df784c2940efce448ebfaf54dece14666John McCall /// C++ 8.3.5p4: The return type, the parameter type list and the 1140b870b88df784c2940efce448ebfaf54dece14666John McCall /// cv-qualifier-seq, [...], are part of the function type. 1141b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned TypeQuals : 3; 1142c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 1143c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief The ref-qualifier associated with a \c FunctionProtoType. 1144c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// 1145c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// This is a value of type \c RefQualifierKind. 1146c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor unsigned RefQualifier : 2; 1147b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1148b870b88df784c2940efce448ebfaf54dece14666John McCall 1149b870b88df784c2940efce448ebfaf54dece14666John McCall class ObjCObjectTypeBitfields { 1150b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ObjCObjectType; 1151b870b88df784c2940efce448ebfaf54dece14666John McCall 1152b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1153b870b88df784c2940efce448ebfaf54dece14666John McCall 1154b870b88df784c2940efce448ebfaf54dece14666John McCall /// NumProtocols - The number of protocols stored directly on this 1155b870b88df784c2940efce448ebfaf54dece14666John McCall /// object type. 1156b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned NumProtocols : 32 - NumTypeBits; 1157b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1158b870b88df784c2940efce448ebfaf54dece14666John McCall 1159b870b88df784c2940efce448ebfaf54dece14666John McCall class ReferenceTypeBitfields { 1160b870b88df784c2940efce448ebfaf54dece14666John McCall friend class ReferenceType; 1161b870b88df784c2940efce448ebfaf54dece14666John McCall 1162b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 1163b870b88df784c2940efce448ebfaf54dece14666John McCall 1164b870b88df784c2940efce448ebfaf54dece14666John McCall /// True if the type was originally spelled with an lvalue sigil. 1165b870b88df784c2940efce448ebfaf54dece14666John McCall /// This is never true of rvalue references but can also be false 1166b870b88df784c2940efce448ebfaf54dece14666John McCall /// on lvalue references because of C++0x [dcl.typedef]p9, 1167b870b88df784c2940efce448ebfaf54dece14666John McCall /// as follows: 1168b870b88df784c2940efce448ebfaf54dece14666John McCall /// 1169b870b88df784c2940efce448ebfaf54dece14666John McCall /// typedef int &ref; // lvalue, spelled lvalue 1170b870b88df784c2940efce448ebfaf54dece14666John McCall /// typedef int &&rvref; // rvalue 1171b870b88df784c2940efce448ebfaf54dece14666John McCall /// ref &a; // lvalue, inner ref, spelled lvalue 1172b870b88df784c2940efce448ebfaf54dece14666John McCall /// ref &&a; // lvalue, inner ref 1173b870b88df784c2940efce448ebfaf54dece14666John McCall /// rvref &a; // lvalue, inner ref, spelled lvalue 1174b870b88df784c2940efce448ebfaf54dece14666John McCall /// rvref &&a; // rvalue, inner ref 1175bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned SpelledAsLValue : 1; 1176b870b88df784c2940efce448ebfaf54dece14666John McCall 1177b870b88df784c2940efce448ebfaf54dece14666John McCall /// True if the inner type is a reference type. This only happens 1178b870b88df784c2940efce448ebfaf54dece14666John McCall /// in non-canonical forms. 1179bdb5b0e8ad8ed297ad01eb2ccd0d6d5ed6058033Francois Pichet unsigned InnerRef : 1; 1180b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1181b870b88df784c2940efce448ebfaf54dece14666John McCall 118277be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall class TypeWithKeywordBitfields { 118377be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall friend class TypeWithKeyword; 118477be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 118577be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall unsigned : NumTypeBits; 118677be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 118777be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall /// An ElaboratedTypeKeyword. 8 bits for efficient access. 118877be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall unsigned Keyword : 8; 118977be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall }; 119077be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall 1191b870b88df784c2940efce448ebfaf54dece14666John McCall class VectorTypeBitfields { 1192b870b88df784c2940efce448ebfaf54dece14666John McCall friend class VectorType; 119307a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1194b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned : NumTypeBits; 119571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 1196e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson /// VecKind - The kind of vector, either a generic vector type or some 1197e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson /// target-specific vector type such as for AltiVec or Neon. 1198cc3b946c35c4372272034e6f0663089477a9a5bdBob Wilson unsigned VecKind : 3; 1199b870b88df784c2940efce448ebfaf54dece14666John McCall 1200b870b88df784c2940efce448ebfaf54dece14666John McCall /// NumElements - The number of elements in the vector. 1201cc3b946c35c4372272034e6f0663089477a9a5bdBob Wilson unsigned NumElements : 29 - NumTypeBits; 1202b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1203b870b88df784c2940efce448ebfaf54dece14666John McCall 12049d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall class AttributedTypeBitfields { 12059d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall friend class AttributedType; 12069d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 12079d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall unsigned : NumTypeBits; 12089d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 12099d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall /// AttrKind - an AttributedType::Kind 12109d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall unsigned AttrKind : 32 - NumTypeBits; 12119d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall }; 12129d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 1213b870b88df784c2940efce448ebfaf54dece14666John McCall union { 1214b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBitfields TypeBits; 1215b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBitfields ArrayTypeBits; 12169d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedTypeBitfields AttributedTypeBits; 1217b870b88df784c2940efce448ebfaf54dece14666John McCall BuiltinTypeBitfields BuiltinTypeBits; 1218b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBitfields FunctionTypeBits; 1219b870b88df784c2940efce448ebfaf54dece14666John McCall ObjCObjectTypeBitfields ObjCObjectTypeBits; 1220b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBitfields ReferenceTypeBits; 122177be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall TypeWithKeywordBitfields TypeWithKeywordBits; 1222b870b88df784c2940efce448ebfaf54dece14666John McCall VectorTypeBitfields VectorTypeBits; 1223b870b88df784c2940efce448ebfaf54dece14666John McCall }; 1224b870b88df784c2940efce448ebfaf54dece14666John McCall 1225b870b88df784c2940efce448ebfaf54dece14666John McCallprivate: 12263c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// \brief Set whether this type comes from an AST file. 12273c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl void setFromAST(bool V = true) const { 1228b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.FromAST = V; 122907a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl } 123007a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1231b7b2688bab0eac053d3e2938b329c8e523fd252bJohn McCall template <class T> friend class TypePropertyCache; 12321fb0caaa7bef765b85972274e3b434af2572c141John McCall 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 1234124dd7b5777e29ecac006822bd4d4623f0dc4264Hartmut Kaiser // silence VC++ warning C4355: 'this' : used in base member initializer list 1235124dd7b5777e29ecac006822bd4d4623f0dc4264Hartmut Kaiser Type *this_() { return this; } 12363b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Type(TypeClass tc, QualType canon, bool Dependent, bool VariablyModified, 1237d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 12383b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall : ExtQualsTypeCommonBase(this, 12393b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall canon.isNull() ? QualType(this_(), 0) : canon) { 1240b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.TC = tc; 1241b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.Dependent = Dependent; 1242b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.VariablyModified = VariablyModified; 1243d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor TypeBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 12441fb0caaa7bef765b85972274e3b434af2572c141John McCall TypeBits.CacheValidAndVisibility = 0; 1245b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.CachedLocalOrUnnamed = false; 1246b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.CachedLinkage = NoLinkage; 1247b870b88df784c2940efce448ebfaf54dece14666John McCall TypeBits.FromAST = false; 1248b870b88df784c2940efce448ebfaf54dece14666John McCall } 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; 12501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1251b870b88df784c2940efce448ebfaf54dece14666John McCall void setDependent(bool D = true) { TypeBits.Dependent = D; } 1252b870b88df784c2940efce448ebfaf54dece14666John McCall void setVariablyModified(bool VM = true) { TypeBits.VariablyModified = VM; } 1253d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 1254d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor TypeBits.ContainsUnexpandedParameterPack = PP; 1255d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 1256d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 12578b9023ba35a86838789e2c9034a6128728c547aaChris Lattnerpublic: 1258b870b88df784c2940efce448ebfaf54dece14666John McCall TypeClass getTypeClass() const { return static_cast<TypeClass>(TypeBits.TC); } 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12603c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// \brief Whether this type comes from an AST file. 1261b870b88df784c2940efce448ebfaf54dece14666John McCall bool isFromAST() const { return TypeBits.FromAST; } 126207a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl 1263d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this type is or contains an unexpanded parameter 1264d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack, used to support C++0x variadic templates. 1265d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1266d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// A type that contains a parameter pack shall be expanded by the 1267d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// ellipsis operator at some point. For example, the typedef in the 1268d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// following example contains an unexpanded parameter pack 'T': 1269d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1270d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 1271d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename ...T> 1272d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// struct X { 1273d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// typedef T* pointer_types; // ill-formed; T is a parameter pack. 1274d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// }; 1275d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 1276d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 1277d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Note that this routine does not specify which 1278d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool containsUnexpandedParameterPack() const { 1279d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return TypeBits.ContainsUnexpandedParameterPack; 1280d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 1281d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 12823b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// Determines if this type would be canonical if it had no further 12833b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// qualification. 1284467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall bool isCanonicalUnqualified() const { 12853b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return CanonicalType == QualType(this, 0); 1286467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall } 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// Types are partitioned into 3 broad categories (C99 6.2.5p1): 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// object types, function types, and incomplete types. 12901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIncompleteType - Return true if this is an incomplete type. 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// A type that can describe objects, but which lacks information needed to 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// determine its size (e.g. void, or a fwd declared struct). Clients of this 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// routine will need to determine if the size is actually required. 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncompleteType() const; 1296d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner 1297d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner /// isIncompleteOrObjectType - Return true if this is an incomplete or object 1298d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner /// type, in other words, not a function type. 1299d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner bool isIncompleteOrObjectType() const { 1300d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner return !isFunctionType(); 1301d805bec0fbb98aa10abbb41bfdcb2e2fab1bac96Chris Lattner } 13022fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor 13032fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor /// \brief Determine whether this type is an object type. 13042fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor bool isObjectType() const { 13052fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // C++ [basic.types]p8: 13062fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // An object type is a (possibly cv-qualified) type that is not a 13072fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor // function type, not a reference type, and not a void type. 13082fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor return !isReferenceType() && !isFunctionType() && !isVoidType(); 13092fdc5e8199e1e239620f2faae88997153703e16fDouglas Gregor } 131064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1311ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl /// isLiteralType - Return true if this is a literal type 1312ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl /// (C++0x [basic.types]p10) 1313ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl bool isLiteralType() const; 1314ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl 1315636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth /// \brief Test if this type is a standard-layout type. 1316636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth /// (C++0x [basic.type]p9) 1317636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth bool isStandardLayoutType() const; 1318636a617cc6021a4366380b3ce673f4472f3d99dbChandler Carruth 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Helper methods to distinguish type categories. All type predicates 1320ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb /// operate on the canonical type, ignoring typedefs and qualifiers. 1321e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar 13229b065ddabf572772991a4aadad5bf4921fac5069Tom Care /// isBuiltinType - returns true if the type is a builtin type. 13239b065ddabf572772991a4aadad5bf4921fac5069Tom Care bool isBuiltinType() const; 13249b065ddabf572772991a4aadad5bf4921fac5069Tom Care 1325e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar /// isSpecificBuiltinType - Test for a particular builtin type. 1326e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar bool isSpecificBuiltinType(unsigned K) const; 13271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13282a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// isPlaceholderType - Test for a type which does not represent an 13292a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// actual type-system type but is instead used as a placeholder for 13302a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// various convenient purposes within Clang. All such types are 13312a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// BuiltinTypes. 13322a984cad5ac3fdceeff2bd99daa7b90979313475John McCall bool isPlaceholderType() const; 13332a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 1334864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// isSpecificPlaceholderType - Test for a specific placeholder type. 1335864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall bool isSpecificPlaceholderType(unsigned K) const; 1336864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 133796d2c438f5c9ada8229f7f2ac049d2e9957bc954Steve Naroff /// isIntegerType() does *not* include complex integers (a GCC extension). 133896d2c438f5c9ada8229f7f2ac049d2e9957bc954Steve Naroff /// isComplexIntegerType() can be used to test for complex integers. 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIntegerType() const; // C99 6.2.5p17 (int, char, bool, enum) 134013b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isEnumeralType() const; 134113b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isBooleanType() const; 134213b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isCharType() const; 134377a52233f7c0f162672652051bfe78b65ad4f789Douglas Gregor bool isWideCharType() const; 134420093b4bf698f292c664676987541d5103b65b15Douglas Gregor bool isAnyCharacterType() const; 13459d3347a5887d2d25afe8b0bd35783a72ec86cce2Douglas Gregor bool isIntegralType(ASTContext &Ctx) const; 134620093b4bf698f292c664676987541d5103b65b15Douglas Gregor 13472ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor /// \brief Determine whether this type is an integral or enumeration type. 13482ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor bool isIntegralOrEnumerationType() const; 13491274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor /// \brief Determine whether this type is an integral or unscoped enumeration 13501274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor /// type. 13511274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor bool isIntegralOrUnscopedEnumerationType() const; 13522ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Floating point categories. 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isRealFloatingType() const; // C99 6.2.5p10 (float, double, long double) 135502f62a9fedbc370fba081303399410a3afdde29fSteve Naroff /// isComplexType() does *not* include complex integers (a GCC extension). 135602f62a9fedbc370fba081303399410a3afdde29fSteve Naroff /// isComplexIntegerType() can be used to test for complex integers. 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isComplexType() const; // C99 6.2.5p11 (complex) 1358f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattner bool isAnyComplexType() const; // C99 6.2.5p11 (complex) + Complex Int. 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFloatingType() const; // C99 6.2.5p11 (real floating + complex) 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isRealType() const; // C99 6.2.5p17 (real floating + integer) 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArithmeticType() const; // C99 6.2.5p18 (integer + floating) 1362c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isVoidType() const; // C99 6.2.5p19 1363c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isDerivedType() const; // C99 6.2.5p20 1364c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isScalarType() const; // C99 6.2.5p21 (arithmetic + pointers) 1365d7eb846aaf5ee4a8d22c3cd0796d1e7229d46013Douglas Gregor bool isAggregateType() const; 1366aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth bool isFundamentalType() const; 1367aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth bool isCompoundType() const; 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1369c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner // Type Predicates: Check to see if this type is structurally the specified 1370ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // type, ignoring typedefs and qualifiers. 1371c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isFunctionType() const; 1372183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall bool isFunctionNoProtoType() const { return getAs<FunctionNoProtoType>(); } 1373183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall bool isFunctionProtoType() const { return getAs<FunctionProtoType>(); } 1374befee48ff2a1dab236c5700f00ecca1cfdcd5837Chris Lattner bool isPointerType() const; 137558f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff bool isAnyPointerType() const; // Any C pointer or ObjC object pointer 13765618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff bool isBlockPointerType() const; 13777154a77e7c1f23418342d3b72836ab504aa7821eSteve Naroff bool isVoidPointerType() const; 1378a1d9fdea79ba7bbd71862b9f9f78f5f117331fc7Chris Lattner bool isReferenceType() const; 13797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl bool isLValueReferenceType() const; 13807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl bool isRValueReferenceType() const; 1381bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner bool isFunctionPointerType() const; 1382f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl bool isMemberPointerType() const; 1383f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl bool isMemberFunctionPointerType() const; 1384db68e28c05a67735211e688009890cf834c22e75Douglas Gregor bool isMemberDataPointerType() const; 1385c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isArrayType() const; 1386c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isConstantArrayType() const; 1387c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isIncompleteArrayType() const; 1388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner bool isVariableArrayType() const; 1389898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isDependentSizedArrayType() const; 1390c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner bool isRecordType() const; 13911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isClassType() const; 13921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isStructureType() const; 1393fb87b89fc9eb103e19fb8e4b925c23f0bd091b99Douglas Gregor bool isStructureOrClassType() const; 13944cdec1c3ca80124024a787ce32833fd5b20cbb15Steve Naroff bool isUnionType() const; 1395368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isComplexIntegerType() const; // GCC _Complex integer type. 1396368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isVectorType() const; // GCC vector type. 1397213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman bool isExtVectorType() const; // Extended vector type. 1398f85e193739c953358c865005855253af4f68a497John McCall bool isObjCObjectPointerType() const; // pointer to ObjC object 1399f85e193739c953358c865005855253af4f68a497John McCall bool isObjCRetainableType() const; // ObjC object or block pointer 1400f85e193739c953358c865005855253af4f68a497John McCall bool isObjCLifetimeType() const; // (array of)* retainable type 1401f85e193739c953358c865005855253af4f68a497John McCall bool isObjCIndirectLifetimeType() const; // (pointer to)* lifetime type 1402f85e193739c953358c865005855253af4f68a497John McCall bool isObjCNSObjectType() const; // __attribute__((NSObject)) 140314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // FIXME: change this to 'raw' interface type, so we can used 'interface' type 140414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // for the common case. 1405c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCObjectType() const; // NSString or typeof(*(id)0) 1406368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isObjCQualifiedInterfaceType() const; // NSString<foo> 1407368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner bool isObjCQualifiedIdType() const; // id<foo> 1408470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff bool isObjCQualifiedClassType() const; // Class<foo> 1409569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor bool isObjCObjectOrInterfaceType() const; 141014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCIdType() const; // id 141114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCClassType() const; // Class 141213dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian bool isObjCSelType() const; // Class 1413de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff bool isObjCBuiltinType() const; // 'id' or 'Class' 1414f85e193739c953358c865005855253af4f68a497John McCall bool isObjCARCBridgableType() const; 1415f85e193739c953358c865005855253af4f68a497John McCall bool isCARCBridgableType() const; 141672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor bool isTemplateTypeParmType() const; // C++ template type parameter 14176e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl bool isNullPtrType() const; // C++0x nullptr_t 1418898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1419f85e193739c953358c865005855253af4f68a497John McCall /// Determines if this type, which must satisfy 1420f85e193739c953358c865005855253af4f68a497John McCall /// isObjCLifetimeType(), is implicitly __unsafe_unretained rather 1421f85e193739c953358c865005855253af4f68a497John McCall /// than implicitly __strong. 1422f85e193739c953358c865005855253af4f68a497John McCall bool isObjCARCImplicitlyUnretainedType() const; 1423f85e193739c953358c865005855253af4f68a497John McCall 1424f85e193739c953358c865005855253af4f68a497John McCall /// Return the implicit lifetime for this type, which must not be dependent. 1425f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime getObjCARCImplicitLifetime() const; 1426f85e193739c953358c865005855253af4f68a497John McCall 1427daa8e4e888758d55a7a759dd4a91b83921cef222John McCall enum ScalarTypeKind { 1428daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Pointer, 1429daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_MemberPointer, 1430daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Bool, 1431daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Integral, 1432daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_Floating, 1433daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_IntegralComplex, 1434daa8e4e888758d55a7a759dd4a91b83921cef222John McCall STK_FloatingComplex 1435daa8e4e888758d55a7a759dd4a91b83921cef222John McCall }; 1436daa8e4e888758d55a7a759dd4a91b83921cef222John McCall /// getScalarTypeKind - Given that this is a scalar type, classify it. 1437daa8e4e888758d55a7a759dd4a91b83921cef222John McCall ScalarTypeKind getScalarTypeKind() const; 1438daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 1439898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isDependentType - Whether this type is a dependent type, meaning 14401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// that its definition somehow depends on a template parameter 1441898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.type]). 1442b870b88df784c2940efce448ebfaf54dece14666John McCall bool isDependentType() const { return TypeBits.Dependent; } 144335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 144435495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor /// \brief Whether this type is a variably-modified type (C99 6.7.5). 1445b870b88df784c2940efce448ebfaf54dece14666John McCall bool isVariablyModifiedType() const { return TypeBits.VariablyModified; } 14463b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 14473b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// \brief Whether this type involves a variable-length array type 14483b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// with a definite size. 14493b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall bool hasSizedVLAType() const; 145035495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 1451db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor /// \brief Whether this type is or contains a local or unnamed type. 1452db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor bool hasUnnamedOrLocalType() const; 1453db4d4bb03df52920cf379797a7ff5c9900f938a6Douglas Gregor 1454063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor bool isOverloadableType() const; 145572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 14564033642464e8ba0982f88f34cffad808d247b393Douglas Gregor /// \brief Determine wither this type is a C++ elaborated-type-specifier. 14574033642464e8ba0982f88f34cffad808d247b393Douglas Gregor bool isElaboratedTypeSpecifier() const; 14584033642464e8ba0982f88f34cffad808d247b393Douglas Gregor 14598958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// hasPointerRepresentation - Whether this type is represented 14608958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// natively as a pointer; this includes pointers, references, block 14618958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar /// pointers, and Objective-C interface, qualified id, and qualified 14626e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl /// interface types, as well as nullptr_t. 14638958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar bool hasPointerRepresentation() const; 14648958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar 1465820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian /// hasObjCPointerRepresentation - Whether this type can represent 1466820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian /// an objective pointer type for the purpose of GC'ability 14671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool hasObjCPointerRepresentation() const; 1468820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian 1469f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an integer representation 1470f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an integer type or a vector. 1471f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasIntegerRepresentation() const; 1472f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1473f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an signed integer representation 1474f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an signed integer type or a vector. 1475f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasSignedIntegerRepresentation() const; 1476f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1477f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// \brief Determine whether this type has an unsigned integer representation 1478f60946222721d9ba3c059563935c17b84703187aDouglas Gregor /// of some sort, e.g., it is an unsigned integer type or a vector. 1479f60946222721d9ba3c059563935c17b84703187aDouglas Gregor bool hasUnsignedIntegerRepresentation() const; 1480f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 14818eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor /// \brief Determine whether this type has a floating-point representation 14828eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor /// of some sort, e.g., it is a floating-point type or a vector thereof. 14838eee119bf4f1693dde17b8552c1f9f81bf2b681eDouglas Gregor bool hasFloatingRepresentation() const; 1484f60946222721d9ba3c059563935c17b84703187aDouglas Gregor 1485c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner // Type Checking Functions: Check to see if this type is structurally the 1486f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // specified type, ignoring typedefs and qualifiers, and return a pointer to 1487f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // the best type we can. 1488769c9cfc6e06bd9d8ffe7a4397b939f19b0e4dc3Ted Kremenek const RecordType *getAsStructureType() const; 1489898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// NOTE: getAs*ArrayType are methods on ASTContext. 1490c8629630ce3e7f0da231bf10a4b39240caaac68aChris Lattner const RecordType *getAsUnionType() const; 14914cdec1c3ca80124024a787ce32833fd5b20cbb15Steve Naroff const ComplexType *getAsComplexIntegerType() const; // GCC complex int type. 149214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // The following is a convenience method that returns an ObjCObjectPointerType 149314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // for object declared using an interface. 149414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *getAsObjCInterfacePointerType() const; 149514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *getAsObjCQualifiedIdType() const; 1496759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian const ObjCObjectPointerType *getAsObjCQualifiedClassType() const; 1497c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *getAsObjCQualifiedInterfaceType() const; 1498a91d6a6619a91d0ca7102d8ab5678d855f04d850Fariborz Jahanian const CXXRecordDecl *getCXXRecordDeclForPointerType() const; 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1500c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// \brief Retrieves the CXXRecordDecl that this type refers to, either 1501c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// because the type is a RecordType or because it is the injected-class-name 1502c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor /// type of a class template or class template partial specialization. 1503c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor CXXRecordDecl *getAsCXXRecordDecl() const; 150434b41d939a1328f484511c6002ba2456db879a29Richard Smith 150534b41d939a1328f484511c6002ba2456db879a29Richard Smith /// \brief Get the AutoType whose type will be deduced for a variable with 150634b41d939a1328f484511c6002ba2456db879a29Richard Smith /// an initializer of this type. This looks through declarators like pointer 150734b41d939a1328f484511c6002ba2456db879a29Richard Smith /// types, but not through decltype or typedefs. 150834b41d939a1328f484511c6002ba2456db879a29Richard Smith AutoType *getContainedAutoType() const; 1509c96be1ea33cdf63d07cec48d18fe8e3afea48f8dDouglas Gregor 1510d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// Member-template getAs<specific type>'. Look through sugar for 1511d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// an instance of <specific type>. This scheme will eventually 1512d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// replace the specific getAsXXXX methods above. 1513d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// 1514d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// There are some specializations of this member template listed 1515d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// immediately following this class. 15161a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek template <typename T> const T *getAs() const; 15171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15183b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// A variant of getAs<> for array types which silently discards 15193b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// qualifiers from the outermost type. 15203b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ArrayType *getAsArrayTypeUnsafe() const; 15213b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 1522d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// Member-template castAs<specific type>. Look through sugar for 1523d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// the underlying instance of <specific type>. 1524d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// 1525d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// This method has the same relationship to getAs<T> as cast<T> has 1526d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// to dyn_cast<T>; which is to say, the underlying type *must* 1527d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// have the intended type, and this method will never return null. 1528d0370f59e79702ac908c81bf556519f91e9ca297John McCall template <typename T> const T *castAs() const; 1529d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1530d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// A variant of castAs<> for array type which silently discards 1531d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// qualifiers from the outermost type. 1532d0370f59e79702ac908c81bf556519f91e9ca297John McCall const ArrayType *castAsArrayTypeUnsafe() const; 1533d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1534d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// getBaseElementTypeUnsafe - Get the base element type of this 1535d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// type, potentially discarding type qualifiers. This method 1536d0370f59e79702ac908c81bf556519f91e9ca297John McCall /// should never be used when type qualifiers are meaningful. 1537d0370f59e79702ac908c81bf556519f91e9ca297John McCall const Type *getBaseElementTypeUnsafe() const; 1538d0370f59e79702ac908c81bf556519f91e9ca297John McCall 1539c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// getArrayElementTypeNoTypeQual - If this is an array type, return the 1540c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// element type of the array, potentially with type qualifiers missing. 1541c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner /// This method should never be used when type qualifiers are meaningful. 1542c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const Type *getArrayElementTypeNoTypeQual() const; 15431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1544f8910df57799256c1897a8610dc52685729ae90eSteve Naroff /// getPointeeType - If this is a pointer, ObjC object pointer, or block 1545f8910df57799256c1897a8610dc52685729ae90eSteve Naroff /// pointer, this returns the respective pointee. 154614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff QualType getPointeeType() const; 15471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1548bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// getUnqualifiedDesugaredType() - Return the specified type with 1549bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// any "sugar" removed from the type, removing any typedefs, 1550bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// typeofs, etc., as well as any qualifiers. 1551bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall const Type *getUnqualifiedDesugaredType() const; 15521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// More type predicates useful for type checking/promotion 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPromotableIntegerType() const; // C99 6.3.1.1p2 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isSignedIntegerType - Return true if this is an integer type that is 1557d5bbce4382622feb4ca5978c4bb8fcceb7aaec00Chris Lattner /// signed, according to C99 6.2.5p4 [char, signed char, short, int, long..], 15585f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// or an enum decl which has a signed representation. 15595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSignedIntegerType() const; 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isUnsignedIntegerType - Return true if this is an integer type that is 15625f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// unsigned, according to C99 6.2.5p6 [which returns true for _Bool], 15635f3827cabd526d0dd5f291d46c310103cebe7a44Eli Friedman /// or an enum decl which has an unsigned representation. 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isUnsignedIntegerType() const; 1565d5bbce4382622feb4ca5978c4bb8fcceb7aaec00Chris Lattner 1566575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// Determines whether this is an integer type that is signed or an 1567575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// enumeration types whose underlying type is a signed integer type. 1568575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor bool isSignedIntegerOrEnumerationType() const; 1569575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor 1570575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// Determines whether this is an integer type that is unsigned or an 1571575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor /// enumeration types whose underlying type is a unsigned integer type. 1572575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor bool isUnsignedIntegerOrEnumerationType() const; 1573575a1c9dc8dc5b4977194993e289f9eda7295c39Douglas Gregor 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isConstantSizeType - Return true if this is not a variable sized type, 15759bfa73c5ab7bf4b0e749d04f29da6884e8d5bd9fChris Lattner /// according to the rules of C99 6.7.5p3. It is not legal to call this on 15769bfa73c5ab7bf4b0e749d04f29da6884e8d5bd9fChris Lattner /// incomplete types. 15773c2b3170041f69a92904e3bab9b6d654eaf260acEli Friedman bool isConstantSizeType() const; 1578c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 157922b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman /// isSpecifierType - Returns true if this type can be represented by some 158022b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman /// set of type specifiers. 158122b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman bool isSpecifierType() const; 158222b61e937dcd8ba2e14764c367f975a392ec7da0Eli Friedman 15830b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor /// \brief Determine the linkage of this type. 158460e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor Linkage getLinkage() const; 15851fb0caaa7bef765b85972274e3b434af2572c141John McCall 15861fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Determine the visibility of this type. 15871fb0caaa7bef765b85972274e3b434af2572c141John McCall Visibility getVisibility() const; 15881fb0caaa7bef765b85972274e3b434af2572c141John McCall 15891fb0caaa7bef765b85972274e3b434af2572c141John McCall /// \brief Determine the linkage and visibility of this type. 15901fb0caaa7bef765b85972274e3b434af2572c141John McCall std::pair<Linkage,Visibility> getLinkageAndVisibility() const; 159160e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 159260e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor /// \brief Note that the linkage is no longer known. 159360e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor void ClearLinkageCache(); 159460e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 159560e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor const char *getTypeClassName() const; 15960b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1597ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall QualType getCanonicalTypeInternal() const { 1598ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall return CanonicalType; 1599ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall } 1600ead608af31b6c9abeae1ca6d0b75094dac4641c0John McCall CanQualType getCanonicalTypeUnqualified() const; // in CanonicalType.h 1601c36d405a02fab41f6c45cb2bc750d64949742903Chris Lattner void dump() const; 1602f85e193739c953358c865005855253af4f68a497John McCall 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *) { return true; } 1604be191100e034b23a3e13053757a57b7f5068c24aArgyrios Kyrtzidis 1605c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl friend class ASTReader; 1606a4232eb646d89e7d52424bb42eb87d9061f39e63Sebastian Redl friend class ASTWriter; 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1609183700f494ec9b6701b6efe82bcb25f4c79ba561John McCalltemplate <> inline const TypedefType *Type::getAs() const { 1610183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return dyn_cast<TypedefType>(this); 1611183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall} 1612183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 1613183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall// We can do canonical leaf types faster, because we don't have to 1614183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall// worry about preserving child type decoration. 1615183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#define TYPE(Class, Base) 1616183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#define LEAF_TYPE(Class) \ 1617183700f494ec9b6701b6efe82bcb25f4c79ba561John McCalltemplate <> inline const Class##Type *Type::getAs() const { \ 16180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return dyn_cast<Class##Type>(CanonicalType); \ 1619d0370f59e79702ac908c81bf556519f91e9ca297John McCall} \ 1620d0370f59e79702ac908c81bf556519f91e9ca297John McCalltemplate <> inline const Class##Type *Type::castAs() const { \ 1621d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<Class##Type>(CanonicalType); \ 1622183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall} 1623183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall#include "clang/AST/TypeNodes.def" 1624183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 1625183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// BuiltinType - This class is used for builtin types like 'int'. Builtin 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types are always canonical and have a literal name field. 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BuiltinType : public Type { 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Kind { 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Void, 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Bool, // This is bool and/or _Bool. 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Char_U, // This is 'char' for targets where char is unsigned. 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UChar, // This is explicitly qualified unsigned char. 16363f59c975aa5d047f7edd1b900b5e885c38af0ef7Chris Lattner WChar_U, // This is 'wchar_t' for C++, when unsigned. 1637f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16, // This is 'char16_t' for C++. 1638f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32, // This is 'char32_t' for C++. 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UShort, 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UInt, 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ULong, 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ULongLong, 16432df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner UInt128, // __uint128_t 16441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Char_S, // This is 'char' for targets where char is signed. 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SChar, // This is explicitly qualified signed char. 16473f59c975aa5d047f7edd1b900b5e885c38af0ef7Chris Lattner WChar_S, // This is 'wchar_t' for C++, when signed. 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Short, 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Int, 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Long, 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongLong, 16522df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner Int128, // __int128_t 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16548e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor Float, Double, LongDouble, 16558e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 16566e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl NullPtr, // This is the type of C++0x 'nullptr'. 16576e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 1658864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'id' type. The user-visible 'id' 1659864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// type is a typedef of an ObjCObjectPointerType to an 1660864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// ObjCObjectType with this as its base. In fact, this only ever 1661864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// shows up in an AST as the base type of an ObjCObjectType. 1662864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCId, 1663864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1664864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'Class' type. The user-visible 1665864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// 'Class' type is a typedef of an ObjCObjectPointerType to an 1666864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// ObjCObjectType with this as its base. In fact, this only ever 1667864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// shows up in an AST as the base type of an ObjCObjectType. 1668864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCClass, 1669864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1670864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The primitive Objective C 'SEL' type. The user-visible 'SEL' 1671864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// type is a typedef of a PointerType to this. 1672864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall ObjCSel, 1673864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 16742a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// This represents the type of an expression whose type is 16752a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// totally unknown, e.g. 'T::foo'. It is permitted for this to 16762a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// appear in situations where the structure of the type is 16772a984cad5ac3fdceeff2bd99daa7b90979313475John McCall /// theoretically deducible. 16782a984cad5ac3fdceeff2bd99daa7b90979313475John McCall Dependent, 16792a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 1680864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The type of an unresolved overload set. A placeholder type. 1681864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Expressions with this type have one of the following basic 1682864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// forms, with parentheses generally permitted: 1683864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # possibly qualified, not if an implicit access 1684864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # possibly qualified, not if an implicit access 1685864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &foo # possibly qualified, not if an implicit access 1686864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// x->foo # only if might be a static member function 1687864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &x->foo # only if might be a static member function 1688864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// &Class::foo # when a pointer-to-member; sub-expr also has this type 1689864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// OverloadExpr::find can be used to analyze the expression. 16901de4d4e8cb2e9c88809fea8092bc6e835a5473d2John McCall Overload, 16911de4d4e8cb2e9c88809fea8092bc6e835a5473d2John McCall 1692864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// The type of a bound C++ non-static member function. 1693864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// A placeholder type. Expressions with this type have one of the 1694864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// following basic forms: 1695864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// foo # if an implicit access 1696864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// x->foo # if only contains non-static members 1697864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall BoundMember, 1698864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 1699864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// __builtin_any_type. A placeholder type. Useful for clients 1700864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// like debuggers that don't know what type to give something. 1701864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Only a small number of operations are valid on expressions of 1702864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// unknown type, most notably explicit casts. 1703864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall UnknownAny 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 170571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinType(Kind K) 170835495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(Builtin, QualType(), /*Dependent=*/(K == Dependent), 1709d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 1710d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*Unexpanded paramter pack=*/false) { 1711b870b88df784c2940efce448ebfaf54dece14666John McCall BuiltinTypeBits.Kind = K; 171271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1714b870b88df784c2940efce448ebfaf54dece14666John McCall Kind getKind() const { return static_cast<Kind>(BuiltinTypeBits.Kind); } 1715e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner const char *getName(const LangOptions &LO) const; 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1717bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1718bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1719bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 1720680523a91dd3351389667c8de17121ba7ae82673John McCall bool isInteger() const { 172171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Bool && getKind() <= Int128; 1722680523a91dd3351389667c8de17121ba7ae82673John McCall } 1723680523a91dd3351389667c8de17121ba7ae82673John McCall 1724680523a91dd3351389667c8de17121ba7ae82673John McCall bool isSignedInteger() const { 172571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Char_S && getKind() <= Int128; 1726680523a91dd3351389667c8de17121ba7ae82673John McCall } 1727680523a91dd3351389667c8de17121ba7ae82673John McCall 1728680523a91dd3351389667c8de17121ba7ae82673John McCall bool isUnsignedInteger() const { 172971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Bool && getKind() <= UInt128; 1730680523a91dd3351389667c8de17121ba7ae82673John McCall } 1731680523a91dd3351389667c8de17121ba7ae82673John McCall 1732680523a91dd3351389667c8de17121ba7ae82673John McCall bool isFloatingPoint() const { 173371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return getKind() >= Float && getKind() <= LongDouble; 1734680523a91dd3351389667c8de17121ba7ae82673John McCall } 1735680523a91dd3351389667c8de17121ba7ae82673John McCall 1736864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// Determines whether this type is a placeholder type, i.e. a type 1737864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// which cannot appear in arbitrary positions in a fully-formed 1738864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// expression. 17392a984cad5ac3fdceeff2bd99daa7b90979313475John McCall bool isPlaceholderType() const { 1740864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return getKind() >= Overload; 17412a984cad5ac3fdceeff2bd99daa7b90979313475John McCall } 17422a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 17435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Builtin; } 17445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BuiltinType *) { return true; } 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ComplexType - C99 6.2.5p11 - Complex values. This supports the C99 complex 17485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types (_Complex float etc) as well as the GCC integer complex extensions. 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ComplexType : public Type, public llvm::FoldingSetNode { 17515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ElementType; 17525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType(QualType Element, QualType CanonicalPtr) : 175335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(Complex, CanonicalPtr, Element->isDependentType(), 1754d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Element->isVariablyModifiedType(), 1755d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Element->containsUnexpandedParameterPack()), 1756898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ElementType(Element) { 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 175960e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getElementType() const { return ElementType; } 17621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1763bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1764bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1765bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Profile(ID, getElementType()); 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Element) { 17705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Element.getAsOpaquePtr()); 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Complex; } 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ComplexType *) { return true; } 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1777075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// ParenType - Sugar for parentheses used when specifying types. 1778075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// 1779075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnaraclass ParenType : public Type, public llvm::FoldingSetNode { 1780075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType Inner; 1781075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1782075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara ParenType(QualType InnerType, QualType CanonType) : 1783075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Type(Paren, CanonType, InnerType->isDependentType(), 1784d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor InnerType->isVariablyModifiedType(), 1785d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor InnerType->containsUnexpandedParameterPack()), 1786075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Inner(InnerType) { 1787075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1788075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara friend class ASTContext; // ASTContext creates these. 1789075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1790075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnarapublic: 1791075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1792075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType getInnerType() const { return Inner; } 1793075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1794075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara bool isSugared() const { return true; } 1795075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara QualType desugar() const { return getInnerType(); } 1796075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1797075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void Profile(llvm::FoldingSetNodeID &ID) { 1798075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Profile(ID, getInnerType()); 1799075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1800075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static void Profile(llvm::FoldingSetNodeID &ID, QualType Inner) { 1801075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Inner.Profile(ID); 1802075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 1803075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1804075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static bool classof(const Type *T) { return T->getTypeClass() == Paren; } 1805075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara static bool classof(const ParenType *) { return true; } 1806075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara}; 1807075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 180868694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar/// PointerType - C99 6.7.5.1 - Pointer Declarators. 1809bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner/// 181068694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbarclass PointerType : public Type, public llvm::FoldingSetNode { 1811bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner QualType PointeeType; 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType(QualType Pointee, QualType CanonicalPtr) : 181435495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(Pointer, CanonicalPtr, Pointee->isDependentType(), 1815d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1816d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack()), 181735495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor PointeeType(Pointee) { 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 182060e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 18215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182368694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar QualType getPointeeType() const { return PointeeType; } 182468694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 1825bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1826bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1827bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 18285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 18295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Profile(ID, getPointeeType()); 18305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { 18325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Pointee.getAsOpaquePtr()); 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { return T->getTypeClass() == Pointer; } 18365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const PointerType *) { return true; } 18375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// BlockPointerType - pointer to a block type. 18405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// This type is to represent types syntactically represented as 18415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// "void (^)(int)", etc. Pointee is required to always be a function type. 18425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// 18435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffclass BlockPointerType : public Type, public llvm::FoldingSetNode { 18445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType PointeeType; // Block is some kind of pointer type 18455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType(QualType Pointee, QualType CanonicalCls) : 184635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(BlockPointer, CanonicalCls, Pointee->isDependentType(), 1847d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1848d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack()), 1849898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor PointeeType(Pointee) { 18505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff friend class ASTContext; // ASTContext creates these. 185260e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 18535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffpublic: 18541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the pointee type. Pointee is required to always be a function type. 18565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType getPointeeType() const { return PointeeType; } 18575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1858bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1859bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1860bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 18615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void Profile(llvm::FoldingSetNodeID &ID) { 18625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Profile(ID, getPointeeType()); 18635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { 18655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff ID.AddPointer(Pointee.getAsOpaquePtr()); 18665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 18691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == BlockPointer; 18705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 18715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff static bool classof(const BlockPointerType *) { return true; } 18725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff}; 18735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 18747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// ReferenceType - Base for LValueReferenceType and RValueReferenceType 18755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 187668694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbarclass ReferenceType : public Type, public llvm::FoldingSetNode { 187768694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar QualType PointeeType; 187868694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 18797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlprotected: 188054e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(TypeClass tc, QualType Referencee, QualType CanonicalRef, 188154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) : 188235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Type(tc, CanonicalRef, Referencee->isDependentType(), 1883d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Referencee->isVariablyModifiedType(), 1884d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Referencee->containsUnexpandedParameterPack()), 1885d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor PointeeType(Referencee) 1886d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor { 1887b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBits.SpelledAsLValue = SpelledAsLValue; 1888b870b88df784c2940efce448ebfaf54dece14666John McCall ReferenceTypeBits.InnerRef = Referencee->isReferenceType(); 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 189060e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1892b870b88df784c2940efce448ebfaf54dece14666John McCall bool isSpelledAsLValue() const { return ReferenceTypeBits.SpelledAsLValue; } 1893b870b88df784c2940efce448ebfaf54dece14666John McCall bool isInnerRef() const { return ReferenceTypeBits.InnerRef; } 189473dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 189554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType getPointeeTypeAsWritten() const { return PointeeType; } 189654e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType getPointeeType() const { 189754e14c4db764c0636160d26c5bbf491637c83a76John McCall // FIXME: this might strip inner qualifiers; okay? 189854e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *T = this; 189971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall while (T->isInnerRef()) 1900d0370f59e79702ac908c81bf556519f91e9ca297John McCall T = T->PointeeType->castAs<ReferenceType>(); 190154e14c4db764c0636160d26c5bbf491637c83a76John McCall return T->PointeeType; 190254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 190368694ada8f4d8f6c4b00ea5b900df96428b28fc8Daniel Dunbar 19045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 190571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Profile(ID, PointeeType, isSpelledAsLValue()); 19065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 190754e14c4db764c0636160d26c5bbf491637c83a76John McCall static void Profile(llvm::FoldingSetNodeID &ID, 190854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Referencee, 190954e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) { 19105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(Referencee.getAsOpaquePtr()); 191154e14c4db764c0636160d26c5bbf491637c83a76John McCall ID.AddBoolean(SpelledAsLValue); 19125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == LValueReference || 19167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl T->getTypeClass() == RValueReference; 19177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ReferenceType *) { return true; } 19197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl}; 19207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 19217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// LValueReferenceType - C++ [dcl.ref] - Lvalue reference 19227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// 19237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlclass LValueReferenceType : public ReferenceType { 192454e14c4db764c0636160d26c5bbf491637c83a76John McCall LValueReferenceType(QualType Referencee, QualType CanonicalRef, 192554e14c4db764c0636160d26c5bbf491637c83a76John McCall bool SpelledAsLValue) : 192654e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(LValueReference, Referencee, CanonicalRef, SpelledAsLValue) 192754e14c4db764c0636160d26c5bbf491637c83a76John McCall {} 19287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl friend class ASTContext; // ASTContext creates these 19297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlpublic: 1930bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1931bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1932bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 19337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == LValueReference; 19357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const LValueReferenceType *) { return true; } 19377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl}; 19387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 19397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// RValueReferenceType - C++0x [dcl.ref] - Rvalue reference 19407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// 19417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlclass RValueReferenceType : public ReferenceType { 19427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType(QualType Referencee, QualType CanonicalRef) : 194354e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType(RValueReference, Referencee, CanonicalRef, false) { 19447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl friend class ASTContext; // ASTContext creates these 19467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlpublic: 1947bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1948bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1949bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 19507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const Type *T) { 19517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return T->getTypeClass() == RValueReference; 19527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 19537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl static bool classof(const RValueReferenceType *) { return true; } 1954f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl}; 1955f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1956f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// MemberPointerType - C++ 8.3.3 - Pointers to members 1957f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// 1958f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlclass MemberPointerType : public Type, public llvm::FoldingSetNode { 1959f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType PointeeType; 1960f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl /// The class of which the pointee is a member. Must ultimately be a 1961f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl /// RecordType, but could be a typedef or a template parameter too. 1962f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *Class; 1963f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1964f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType(QualType Pointee, const Type *Cls, QualType CanonicalPtr) : 1965f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Type(MemberPointer, CanonicalPtr, 196635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor Cls->isDependentType() || Pointee->isDependentType(), 1967d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->isVariablyModifiedType(), 1968d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor (Cls->containsUnexpandedParameterPack() || 1969d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Pointee->containsUnexpandedParameterPack())), 1970f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl PointeeType(Pointee), Class(Cls) { 1971f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1972f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl friend class ASTContext; // ASTContext creates these. 197360e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 1974f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlpublic: 1975f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType getPointeeType() const { return PointeeType; } 1976f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 19770bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// Returns true if the member type (i.e. the pointee type) is a 19780bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// function type rather than a data-member type. 19790bab0cdab751248ca389a5592bcb70eac5d39260John McCall bool isMemberFunctionPointer() const { 19800bab0cdab751248ca389a5592bcb70eac5d39260John McCall return PointeeType->isFunctionProtoType(); 19810bab0cdab751248ca389a5592bcb70eac5d39260John McCall } 19820bab0cdab751248ca389a5592bcb70eac5d39260John McCall 19830bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// Returns true if the member type (i.e. the pointee type) is a 19840bab0cdab751248ca389a5592bcb70eac5d39260John McCall /// data type rather than a function type. 19850bab0cdab751248ca389a5592bcb70eac5d39260John McCall bool isMemberDataPointer() const { 19860bab0cdab751248ca389a5592bcb70eac5d39260John McCall return !PointeeType->isFunctionProtoType(); 19870bab0cdab751248ca389a5592bcb70eac5d39260John McCall } 19880bab0cdab751248ca389a5592bcb70eac5d39260John McCall 1989f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *getClass() const { return Class; } 1990f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1991bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 1992bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 1993bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 1994f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void Profile(llvm::FoldingSetNodeID &ID) { 1995f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Profile(ID, getPointeeType(), getClass()); 1996f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1997f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee, 1998f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl const Type *Class) { 1999f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ID.AddPointer(Pointee.getAsOpaquePtr()); 2000f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ID.AddPointer(Class); 2001f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2002f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2003f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static bool classof(const Type *T) { 2004f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return T->getTypeClass() == MemberPointer; 2005f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2006f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl static bool classof(const MemberPointerType *) { return true; } 20075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArrayType - C99 6.7.5.2 - Array Declarators. 20105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 20112e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass ArrayType : public Type, public llvm::FoldingSetNode { 20125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ArraySizeModifier - Capture whether this is a normal array (e.g. int X[4]) 2014898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// an array with a static size (e.g. int X[static 4]), or an array 2015898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// with a star size (e.g. int X[*]). 2016898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// 'static' is only allowed on function parameters. 20175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ArraySizeModifier { 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Normal, Static, Star 20195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 20205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 2021fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff /// ElementType - The element type of the array. 2022fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff QualType ElementType; 20231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2024fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffprotected: 2025898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // C++ [temp.dep.type]p1: 2026898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // A type is dependent if it is... 2027898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // - an array type constructed from any dependent type or whose 2028898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // size is specified by a constant expression that is 2029898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // value-dependent, 2030c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType(TypeClass tc, QualType et, QualType can, 2031d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ArraySizeModifier sm, unsigned tq, 2032d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 203335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(tc, can, et->isDependentType() || tc == DependentSizedArray, 2034d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor (tc == VariableArray || et->isVariablyModifiedType()), 2035d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack), 203671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ElementType(et) { 2037b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBits.IndexTypeQuals = tq; 2038b870b88df784c2940efce448ebfaf54dece14666John McCall ArrayTypeBits.SizeModifier = sm; 203971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2040898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2041fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff friend class ASTContext; // ASTContext creates these. 204260e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 2043fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffpublic: 2044fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff QualType getElementType() const { return ElementType; } 2045ca63fa00786e51c207c829f4182f11a6c6b552beTed Kremenek ArraySizeModifier getSizeModifier() const { 2046b870b88df784c2940efce448ebfaf54dece14666John McCall return ArraySizeModifier(ArrayTypeBits.SizeModifier); 2047ca63fa00786e51c207c829f4182f11a6c6b552beTed Kremenek } 20480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers getIndexTypeQualifiers() const { 204971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Qualifiers::fromCVRMask(getIndexTypeCVRQualifiers()); 205071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 205171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall unsigned getIndexTypeCVRQualifiers() const { 2052b870b88df784c2940efce448ebfaf54dece14666John McCall return ArrayTypeBits.IndexTypeQuals; 20530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 20541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2055fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const Type *T) { 2056fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff return T->getTypeClass() == ConstantArray || 2057c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman T->getTypeClass() == VariableArray || 2058898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor T->getTypeClass() == IncompleteArray || 2059898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor T->getTypeClass() == DependentSizedArray; 2060fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2061fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const ArrayType *) { return true; } 2062fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff}; 2063fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 20647e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// ConstantArrayType - This class represents the canonical version of 20657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// C arrays with a specified constant size. For example, the canonical 20667e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// type for 'int A[4 + 4*100]' is a ConstantArrayType where the element 20677e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// type is 'int' and the size is 404. 20682e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass ConstantArrayType : public ArrayType { 2069fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff llvm::APInt Size; // Allows us to unique the type. 20701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20710be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType(QualType et, QualType can, const llvm::APInt &size, 2072c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArraySizeModifier sm, unsigned tq) 2073d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(ConstantArray, et, can, sm, tq, 2074d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()), 20757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Size(size) {} 20767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregorprotected: 20777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayType(TypeClass tc, QualType et, QualType can, 20787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &size, ArraySizeModifier sm, unsigned tq) 2079d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(tc, et, can, sm, tq, et->containsUnexpandedParameterPack()), 2080d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Size(size) {} 2081fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff friend class ASTContext; // ASTContext creates these. 2082fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroffpublic: 2083c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const llvm::APInt &getSize() const { return Size; } 2084bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2085bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2086bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 20872767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 20882767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// \brief Determine the number of bits required to address a member of 20892767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // an array with the given element type and number of elements. 20902767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor static unsigned getNumAddressingBits(ASTContext &Context, 20912767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor QualType ElementType, 20922767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor const llvm::APInt &NumElements); 20932767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 20942767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// \brief Determine the maximum number of active bits that an array's size 20952767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor /// can require, which limits the maximum size of the array. 20962767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor static unsigned getMaxSizeBits(ASTContext &Context); 20972767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 2098fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff void Profile(llvm::FoldingSetNodeID &ID) { 20991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Profile(ID, getElementType(), getSize(), 21000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getSizeModifier(), getIndexTypeCVRQualifiers()); 2101fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2102fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static void Profile(llvm::FoldingSetNodeID &ID, QualType ET, 21030be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner const llvm::APInt &ArraySize, ArraySizeModifier SizeMod, 21040be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner unsigned TypeQuals) { 2105fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ID.AddPointer(ET.getAsOpaquePtr()); 2106fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ID.AddInteger(ArraySize.getZExtValue()); 21070be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(SizeMod); 21080be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(TypeQuals); 2109fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 21107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor static bool classof(const Type *T) { 211146a617a792bfab0d9b1e057371ea3b9540802226John McCall return T->getTypeClass() == ConstantArray; 2112fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff } 2113fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const ConstantArrayType *) { return true; } 2114fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff}; 2115fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 2116da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// IncompleteArrayType - This class represents C arrays with an unspecified 2117da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// size. For example 'int A[]' has an IncompleteArrayType where the element 2118da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// type is 'int' and the size is unspecified. 2119c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedmanclass IncompleteArrayType : public ArrayType { 21207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 2121c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType(QualType et, QualType can, 21227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArraySizeModifier sm, unsigned tq) 2123d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(IncompleteArray, et, can, sm, tq, 2124d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()) {} 2125c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman friend class ASTContext; // ASTContext creates these. 2126c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedmanpublic: 2127bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2128bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2129bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 21301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 21311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == IncompleteArray; 2132c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 2133c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman static bool classof(const IncompleteArrayType *) { return true; } 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2135c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman friend class StmtIteratorBase; 21361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2137c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void Profile(llvm::FoldingSetNodeID &ID) { 21380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Profile(ID, getElementType(), getSizeModifier(), 21390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getIndexTypeCVRQualifiers()); 2140c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 21411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21420be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner static void Profile(llvm::FoldingSetNodeID &ID, QualType ET, 21430be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ArraySizeModifier SizeMod, unsigned TypeQuals) { 2144c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ID.AddPointer(ET.getAsOpaquePtr()); 21450be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(SizeMod); 21460be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ID.AddInteger(TypeQuals); 2147c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman } 2148c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman}; 2149c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 2150da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// VariableArrayType - This class represents C arrays with a specified size 2151da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// which is not an integer-constant-expression. For example, 'int s[x+foo()]'. 2152da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// Since the size expression is an arbitrary expression, we store it as such. 2153da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 2154da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// Note: VariableArrayType's aren't uniqued (since the expressions aren't) and 2155da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// should not be: two lexically equivalent variable array types could mean 2156da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// different things, for example, these variables do not have the same type 2157da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// dynamically: 2158da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 2159da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// void foo(int x) { 2160da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// int Y[x]; 2161da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// ++x; 2162da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// int Z[x]; 2163da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// } 2164da2d71a50fe724c881b148fcc2c05a5e9b56e3a5Chris Lattner/// 21652e7d352dbec06755105237afba183492d31d03cbTed Kremenekclass VariableArrayType : public ArrayType { 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// SizeExpr - An assignment expression. VLA's are only permitted within 21671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// a function block. 2168b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek Stmt *SizeExpr; 21697e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor /// Brackets - The left and right array brackets. 21707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets; 21717e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 2172c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff VariableArrayType(QualType et, QualType can, Expr *e, 21737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArraySizeModifier sm, unsigned tq, 21747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange brackets) 2175d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : ArrayType(VariableArray, et, can, sm, tq, 2176d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor et->containsUnexpandedParameterPack()), 21777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SizeExpr((Stmt*) e), Brackets(brackets) {} 21785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 21794b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek 21805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getSizeExpr() const { 2182b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek // We use C-style casts instead of cast<> here because we do not wish 2183b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek // to have a dependency of Type.h on Stmt.h/Expr.h. 2184b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek return (Expr*) SizeExpr; 2185b3064041583eb134fbf56906728bf752bc65b572Ted Kremenek } 21867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange getBracketsRange() const { return Brackets; } 21877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } 21887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } 21891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2190bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2191bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2192bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 21931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 21941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == VariableArray; 21955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2196fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff static bool classof(const VariableArrayType *) { return true; } 21971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219892866e2e90f6d93fb95e25a7ac4438e239d89ce6Ted Kremenek friend class StmtIteratorBase; 21991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22002bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID) { 2201fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner assert(0 && "Cannot unique VariableArrayTypes."); 22022bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 22035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// DependentSizedArrayType - This type represents an array type in 2206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// C++ whose size is a value-dependent expression. For example: 2207cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// 2208cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// \code 22091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// template<typename T, int Size> 2210898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// class array { 2211898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// T data[Size]; 2212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// }; 2213cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// \endcode 2214cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor/// 2215898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// For these types, we won't actually know what the array bound is 2216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// until template instantiation occurs, at which point this will 2217898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// become either a ConstantArrayType or a VariableArrayType. 2218898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorclass DependentSizedArrayType : public ArrayType { 22194ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 22201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2221cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// \brief An assignment expression that will instantiate to the 2222898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// size of the array. 2223cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// 2224cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// The expression itself might be NULL, in which case the array 2225cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor /// type will have its size deduced from an initializer. 2226898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Stmt *SizeExpr; 2227cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 22287e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor /// Brackets - The left and right array brackets. 22297e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets; 22301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22314ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentSizedArrayType(const ASTContext &Context, QualType et, QualType can, 223204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Expr *e, ArraySizeModifier sm, unsigned tq, 2233d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor SourceRange brackets); 2234d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2235898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor friend class ASTContext; // ASTContext creates these. 2236898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2237898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorpublic: 22381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getSizeExpr() const { 2239898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // We use C-style casts instead of cast<> here because we do not wish 2240898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // to have a dependency of Type.h on Stmt.h/Expr.h. 2241898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return (Expr*) SizeExpr; 2242898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 22437e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange getBracketsRange() const { return Brackets; } 22447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } 22457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } 22461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2247bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2248bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2249bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 22501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == DependentSizedArray; 2252898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 2253898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool classof(const DependentSizedArrayType *) { return true; } 22541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2255898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor friend class StmtIteratorBase; 22561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2258898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 22591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Profile(ID, Context, getElementType(), 22600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall getSizeModifier(), getIndexTypeCVRQualifiers(), getSizeExpr()); 2261898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22634ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType ET, ArraySizeModifier SizeMod, 226504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor unsigned TypeQuals, Expr *E); 2266898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor}; 2267898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2268f6ddb737cb882ffbf0b75a9abd50b930cc2b9068Douglas Gregor/// DependentSizedExtVectorType - This type represent an extended vector type 22699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// where either the type or size is dependent. For example: 22709cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// @code 22719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// template<typename T, int Size> 22729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// class vector { 22739cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// typedef T __attribute__((ext_vector_type(Size))) type; 22749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// } 22759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// @endcode 22762ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregorclass DependentSizedExtVectorType : public Type, public llvm::FoldingSetNode { 22774ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 22789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr; 22799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor /// ElementType - The element type of the array. 22809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType ElementType; 22819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation loc; 22821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22834ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentSizedExtVectorType(const ASTContext &Context, QualType ElementType, 2284d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType can, Expr *SizeExpr, SourceLocation loc); 2285d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 22869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor friend class ASTContext; 22879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 22889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorpublic: 22892ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor Expr *getSizeExpr() const { return SizeExpr; } 22909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType getElementType() const { return ElementType; } 22919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation getAttributeLoc() const { return loc; } 22929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2293bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2294bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2295bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 22971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == DependentSizedExtVector; 22989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 22991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const DependentSizedExtVectorType *) { return true; } 23002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor 23012ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 23022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor Profile(ID, Context, getElementType(), getSizeExpr()); 23032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23054ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 23062ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType ElementType, Expr *SizeExpr); 23079cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor}; 23081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 231073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// VectorType - GCC generic vector type. This type is created using 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// __attribute__((vector_size(n)), where "n" specifies the vector size in 231282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson/// bytes; or from an Altivec __vector or vector declaration. 231382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson/// Since the constructor takes the number of vector elements, the 231473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// client is responsible for converting the size into the number of elements. 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass VectorType : public Type, public llvm::FoldingSetNode { 2316788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerpublic: 2317e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson enum VectorKind { 2318e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson GenericVector, // not a target-specific vector type 2319e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecVector, // is AltiVec vector 2320e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecPixel, // is AltiVec 'vector Pixel' 2321e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson AltiVecBool, // is AltiVec 'vector bool ...' 2322491328c90c00ecad6ad27fa0ab3cdf9195a4a820Bob Wilson NeonVector, // is ARM Neon vector 2323491328c90c00ecad6ad27fa0ab3cdf9195a4a820Bob Wilson NeonPolyVector // is ARM Neon polynomial vector 2324788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner }; 232573322924127c873c13101b705dd823f5539ffa5fSteve Naroffprotected: 23265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ElementType - The element type of the vector. 23275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ElementType; 23281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 232982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(QualType vecType, unsigned nElements, QualType canonType, 2330d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor VectorKind vecKind); 233135495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor 23321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType(TypeClass tc, QualType vecType, unsigned nElements, 2333d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType canonType, VectorKind vecKind); 2334d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 23355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 233660e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 23375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getElementType() const { return ElementType; } 2340b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getNumElements() const { return VectorTypeBits.NumElements; } 23415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2342bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2343bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2344bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2345e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorKind getVectorKind() const { 2346e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson return VectorKind(VectorTypeBits.VecKind); 234771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2348788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner 23495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 235071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Profile(ID, getElementType(), getNumElements(), 2351e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson getTypeClass(), getVectorKind()); 23525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, QualType ElementType, 235482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned NumElements, TypeClass TypeClass, 2355e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorKind VecKind) { 23565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(ElementType.getAsOpaquePtr()); 23575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddInteger(NumElements); 235873322924127c873c13101b705dd823f5539ffa5fSteve Naroff ID.AddInteger(TypeClass); 2359e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson ID.AddInteger(VecKind); 236073322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 23610b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 23621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 23631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == Vector || T->getTypeClass() == ExtVector; 23645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const VectorType *) { return true; } 23665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2368213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// ExtVectorType - Extended vector type. This type is created using 2369213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// __attribute__((ext_vector_type(n)), where "n" is the number of elements. 2370213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// Unlike vector_size, ext_vector_type is only allowed on typedef's. This 2371fcac0fff877a461bc5d5a57e6c6727a4c819d95aSteve Naroff/// class enables syntactic extensions, like Vector Components for accessing 2372fcac0fff877a461bc5d5a57e6c6727a4c819d95aSteve Naroff/// points, colors, and textures (modeled after OpenGL Shading Language). 2373213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begemanclass ExtVectorType : public VectorType { 2374213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType(QualType vecType, unsigned nElements, QualType canonType) : 2375e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType(ExtVector, vecType, nElements, canonType, GenericVector) {} 237673322924127c873c13101b705dd823f5539ffa5fSteve Naroff friend class ASTContext; // ASTContext creates these. 237773322924127c873c13101b705dd823f5539ffa5fSteve Naroffpublic: 237888dca0464804b8b26ae605f89784c927e8493dddChris Lattner static int getPointAccessorIdx(char c) { 237988dca0464804b8b26ae605f89784c927e8493dddChris Lattner switch (c) { 238088dca0464804b8b26ae605f89784c927e8493dddChris Lattner default: return -1; 238188dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'x': return 0; 238288dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'y': return 1; 238388dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'z': return 2; 238488dca0464804b8b26ae605f89784c927e8493dddChris Lattner case 'w': return 3; 238588dca0464804b8b26ae605f89784c927e8493dddChris Lattner } 2386e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 2387353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman static int getNumericAccessorIdx(char c) { 238888dca0464804b8b26ae605f89784c927e8493dddChris Lattner switch (c) { 2389353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman default: return -1; 2390353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '0': return 0; 2391353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '1': return 1; 2392353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '2': return 2; 2393353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '3': return 3; 2394353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '4': return 4; 2395353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '5': return 5; 2396353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '6': return 6; 2397353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '7': return 7; 2398353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '8': return 8; 2399353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case '9': return 9; 2400131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'A': 2401353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'a': return 10; 2402131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'B': 2403353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'b': return 11; 2404131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'C': 2405353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'c': return 12; 2406131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'D': 2407353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'd': return 13; 2408131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'E': 2409353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'e': return 14; 2410131f4658249b2a7d2d7e30fe07e84c484f79ef99Nate Begeman case 'F': 2411353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman case 'f': return 15; 241288dca0464804b8b26ae605f89784c927e8493dddChris Lattner } 2413e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 24141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2415b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner static int getAccessorIdx(char c) { 2416b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner if (int idx = getPointAccessorIdx(c)+1) return idx-1; 2417353417af9d254d4fd0eb7d0a3ff71c4d8594ac58Nate Begeman return getNumericAccessorIdx(c); 2418b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner } 24191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 242088dca0464804b8b26ae605f89784c927e8493dddChris Lattner bool isAccessorWithinNumElements(char c) const { 2421b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner if (int idx = getAccessorIdx(c)+1) 242271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return unsigned(idx-1) < getNumElements(); 242388dca0464804b8b26ae605f89784c927e8493dddChris Lattner return false; 2424e1b31fedbc006e6e4071bbb4f74c6116b56cfa9fSteve Naroff } 2425bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2426bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2427bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 24291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ExtVector; 243073322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 2431213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman static bool classof(const ExtVectorType *) { return true; } 243273322924127c873c13101b705dd823f5539ffa5fSteve Naroff}; 243373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 24345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// FunctionType - C99 6.7.5.3 - Function Declarators. This is the common base 243572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// class of FunctionNoProtoType and FunctionProtoType. 24365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FunctionType : public Type { 24385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The type returned by the function. 24395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ResultType; 2440264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2441264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola public: 2442373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// ExtInfo - A class which abstracts out some details necessary for 2443373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// making a call. 2444373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// 2445373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// It is not actually used directly for storing this information in 2446373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// a FunctionType, although FunctionType does currently use the 2447373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// same bit-pattern. 2448373920bd733b1d28fe7bf209945a62eb9248d948John McCall /// 2449075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // If you add a field (say Foo), other than the obvious places (both, 2450075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // constructors, compile failures), what you need to update is 2451075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara // * Operator== 2452425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * getFoo 2453425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * withFoo 2454425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * functionType. Add Foo, getFoo. 2455425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * ASTContext::getFooType 2456425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * ASTContext::mergeFunctionTypes 2457425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * FunctionNoProtoType::Profile 2458425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * FunctionProtoType::Profile 2459425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * TypePrinter::PrintFunctionProto 24603c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl // * AST read and write 2461425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // * Codegen 2462264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola class ExtInfo { 2463f85e193739c953358c865005855253af4f68a497John McCall // Feel free to rearrange or add bits, but if you go over 9, 2464373920bd733b1d28fe7bf209945a62eb9248d948John McCall // you'll need to adjust both the Bits field below and 2465373920bd733b1d28fe7bf209945a62eb9248d948John McCall // Type::FunctionTypeBitfields. 2466373920bd733b1d28fe7bf209945a62eb9248d948John McCall 2467f85e193739c953358c865005855253af4f68a497John McCall // | CC |noreturn|produces|hasregparm|regparm 2468f85e193739c953358c865005855253af4f68a497John McCall // |0 .. 2| 3 | 4 | 5 |6 .. 8 2469b870b88df784c2940efce448ebfaf54dece14666John McCall enum { CallConvMask = 0x7 }; 2470b870b88df784c2940efce448ebfaf54dece14666John McCall enum { NoReturnMask = 0x8 }; 2471f85e193739c953358c865005855253af4f68a497John McCall enum { ProducesResultMask = 0x10 }; 2472f85e193739c953358c865005855253af4f68a497John McCall enum { HasRegParmMask = 0x20 }; 2473f85e193739c953358c865005855253af4f68a497John McCall enum { RegParmMask = ~(CallConvMask | NoReturnMask | ProducesResultMask), 2474f85e193739c953358c865005855253af4f68a497John McCall RegParmOffset = 6 }; // Assumed to be the last field 2475b870b88df784c2940efce448ebfaf54dece14666John McCall 2476f85e193739c953358c865005855253af4f68a497John McCall uint16_t Bits; 247771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 2478f85e193739c953358c865005855253af4f68a497John McCall ExtInfo(unsigned Bits) : Bits(static_cast<uint16_t>(Bits)) {} 247971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 248071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall friend class FunctionType; 248171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall 2482264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola public: 2483264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Constructor with no defaults. Use this when you know that you 24843c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl // have all the elements (when reading an AST file for example). 2485f85e193739c953358c865005855253af4f68a497John McCall ExtInfo(bool noReturn, bool hasRegParm, unsigned regParm, CallingConv cc, 2486f85e193739c953358c865005855253af4f68a497John McCall bool producesResult) { 2487b870b88df784c2940efce448ebfaf54dece14666John McCall Bits = ((unsigned) cc) | 2488b870b88df784c2940efce448ebfaf54dece14666John McCall (noReturn ? NoReturnMask : 0) | 2489f85e193739c953358c865005855253af4f68a497John McCall (producesResult ? ProducesResultMask : 0) | 2490a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman (hasRegParm ? HasRegParmMask : 0) | 2491b870b88df784c2940efce448ebfaf54dece14666John McCall (regParm << RegParmOffset); 249271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2493264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2494264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Constructor with all defaults. Use when for example creating a 2495264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // function know to use defaults. 249671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ExtInfo() : Bits(0) {} 2497264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2498b870b88df784c2940efce448ebfaf54dece14666John McCall bool getNoReturn() const { return Bits & NoReturnMask; } 2499f85e193739c953358c865005855253af4f68a497John McCall bool getProducesResult() const { return Bits & ProducesResultMask; } 2500a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman bool getHasRegParm() const { return Bits & HasRegParmMask; } 2501b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getRegParm() const { return Bits >> RegParmOffset; } 2502b870b88df784c2940efce448ebfaf54dece14666John McCall CallingConv getCC() const { return CallingConv(Bits & CallConvMask); } 2503264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 250471c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall bool operator==(ExtInfo Other) const { 250571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Bits == Other.Bits; 2506264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 250771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall bool operator!=(ExtInfo Other) const { 250871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return Bits != Other.Bits; 2509264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2510264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2511264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // Note that we don't have setters. That is by design, use 2512264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola // the following with methods instead of mutating these objects. 2513264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2514264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExtInfo withNoReturn(bool noReturn) const { 251571c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall if (noReturn) 251671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return ExtInfo(Bits | NoReturnMask); 251771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall else 251871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall return ExtInfo(Bits & ~NoReturnMask); 2519425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 2520425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2521f85e193739c953358c865005855253af4f68a497John McCall ExtInfo withProducesResult(bool producesResult) const { 2522f85e193739c953358c865005855253af4f68a497John McCall if (producesResult) 2523f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo(Bits | ProducesResultMask); 2524f85e193739c953358c865005855253af4f68a497John McCall else 2525f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo(Bits & ~ProducesResultMask); 2526f85e193739c953358c865005855253af4f68a497John McCall } 2527f85e193739c953358c865005855253af4f68a497John McCall 2528425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola ExtInfo withRegParm(unsigned RegParm) const { 2529f85e193739c953358c865005855253af4f68a497John McCall return ExtInfo((Bits & ~RegParmMask) | 2530f85e193739c953358c865005855253af4f68a497John McCall (HasRegParmMask) | 2531f85e193739c953358c865005855253af4f68a497John McCall (RegParm << RegParmOffset)); 2532264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2533264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2534264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExtInfo withCallingConv(CallingConv cc) const { 2535b870b88df784c2940efce448ebfaf54dece14666John McCall return ExtInfo((Bits & ~CallConvMask) | (unsigned) cc); 2536264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } 2537264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 2538e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall void Profile(llvm::FoldingSetNodeID &ID) const { 253971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ID.AddInteger(Bits); 254071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2541264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola }; 2542264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola 25435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 2544e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType(TypeClass tc, QualType res, bool variadic, 2545c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor unsigned typeQuals, RefQualifierKind RefQualifier, 2546c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor QualType Canonical, bool Dependent, 2547d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool VariablyModified, bool ContainsUnexpandedParameterPack, 2548d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ExtInfo Info) 2549d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, Canonical, Dependent, VariablyModified, 2550d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack), 2551d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ResultType(res) { 2552b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBits.ExtInfo = Info.Bits; 2553e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionTypeBits.Variadic = variadic; 2554b870b88df784c2940efce448ebfaf54dece14666John McCall FunctionTypeBits.TypeQuals = typeQuals; 2555c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor FunctionTypeBits.RefQualifier = static_cast<unsigned>(RefQualifier); 255671c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 2557e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall bool isVariadic() const { return FunctionTypeBits.Variadic; } 2558b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getTypeQuals() const { return FunctionTypeBits.TypeQuals; } 2559c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2560c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind getRefQualifier() const { 2561c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor return static_cast<RefQualifierKind>(FunctionTypeBits.RefQualifier); 2562c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2563c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 25645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 25651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getResultType() const { return ResultType; } 2567a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman 2568a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman bool getHasRegParm() const { return getExtInfo().getHasRegParm(); } 2569b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getRegParmType() const { return getExtInfo().getRegParm(); } 2570b870b88df784c2940efce448ebfaf54dece14666John McCall bool getNoReturnAttr() const { return getExtInfo().getNoReturn(); } 2571b870b88df784c2940efce448ebfaf54dece14666John McCall CallingConv getCallConv() const { return getExtInfo().getCC(); } 2572b870b88df784c2940efce448ebfaf54dece14666John McCall ExtInfo getExtInfo() const { return ExtInfo(FunctionTypeBits.ExtInfo); } 25735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25745291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// \brief Determine the type of an expression that calls a function of 25755291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor /// this type. 25765291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor QualType getCallResultType(ASTContext &Context) const { 25776398235d7890a81b785ea5af3b6e66d86bf184ccDouglas Gregor return getResultType().getNonLValueExprType(Context); 25785291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 25795291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 258004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall static llvm::StringRef getNameForCallConv(CallingConv CC); 258104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 25825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 25835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionNoProto || 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getTypeClass() == FunctionProto; 25855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FunctionType *) { return true; } 25875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 258972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// FunctionNoProtoType - Represents a K&R-style 'int foo()' function, which has 25905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// no information available about its arguments. 259172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass FunctionNoProtoType : public FunctionType, public llvm::FoldingSetNode { 259271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall FunctionNoProtoType(QualType Result, QualType Canonical, ExtInfo Info) 2593c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FunctionType(FunctionNoProto, Result, false, 0, RQ_None, Canonical, 259435495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor /*Dependent=*/false, Result->isVariablyModifiedType(), 2595d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false, Info) {} 2596d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 25975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 259860e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 25995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 26005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // No additional state past what FunctionType provides. 26011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2602bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2603bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2604bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 26055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Profile(llvm::FoldingSetNodeID &ID) { 2606264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Profile(ID, getResultType(), getExtInfo()); 26075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26082455636163fdd18581d7fdae816433f886d88213Mike Stump static void Profile(llvm::FoldingSetNodeID &ID, QualType ResultType, 260971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall ExtInfo Info) { 261071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall Info.Profile(ID); 26115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ID.AddPointer(ResultType.getAsOpaquePtr()); 26125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 26155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionNoProto; 26165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 261772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const FunctionNoProtoType *) { return true; } 26185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 262072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// FunctionProtoType - Represents a prototype with argument type info, e.g. 26215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'int foo(int)' or 'int foo(void)'. 'void' is represented as having no 2622465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// arguments, not as having a single void argument. Such a type can have an 2623465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// exception specification, but this specification is not part of the canonical 2624465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl/// type. 262572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass FunctionProtoType : public FunctionType, public llvm::FoldingSetNode { 2626e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCallpublic: 2627e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall /// ExtProtoInfo - Extra information about a function prototype. 2628e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall struct ExtProtoInfo { 2629e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo() : 26308b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl Variadic(false), ExceptionSpecType(EST_None), TypeQuals(0), 2631f85e193739c953358c865005855253af4f68a497John McCall RefQualifier(RQ_None), NumExceptions(0), Exceptions(0), NoexceptExpr(0), 2632f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments(0) {} 2633e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 2634e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo ExtInfo; 2635e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall bool Variadic; 26368b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl ExceptionSpecificationType ExceptionSpecType; 2637e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned char TypeQuals; 2638c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier; 2639e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall unsigned NumExceptions; 2640e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall const QualType *Exceptions; 26418b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl Expr *NoexceptExpr; 2642f85e193739c953358c865005855253af4f68a497John McCall const bool *ConsumedArguments; 2643e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall }; 2644e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 2645e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCallprivate: 2646d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Determine whether there are any argument types that 2647d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain an unexpanded parameter pack. 2648d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor static bool containsAnyUnexpandedParameterPack(const QualType *ArgArray, 2649d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor unsigned numArgs) { 2650d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor for (unsigned Idx = 0; Idx < numArgs; ++Idx) 2651d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor if (ArgArray[Idx]->containsUnexpandedParameterPack()) 2652d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return true; 2653d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2654d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return false; 2655d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 2656d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 2657e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType(QualType result, const QualType *args, unsigned numArgs, 26588026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl QualType canonical, const ExtProtoInfo &epi); 2659465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 26605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// NumArgs - The number of arguments this function has, not counting '...'. 2661f85e193739c953358c865005855253af4f68a497John McCall unsigned NumArgs : 19; 2662465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2663465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// NumExceptions - The number of types in the exception spec, if any. 266460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl unsigned NumExceptions : 9; 2665465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 266660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// ExceptionSpecType - The type of exception specification this function has. 266760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl unsigned ExceptionSpecType : 3; 2668465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2669f85e193739c953358c865005855253af4f68a497John McCall /// HasAnyConsumedArgs - Whether this function has any consumed arguments. 2670f85e193739c953358c865005855253af4f68a497John McCall unsigned HasAnyConsumedArgs : 1; 2671f85e193739c953358c865005855253af4f68a497John McCall 2672942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner /// ArgInfo - There is an variable size array after the class in memory that 2673942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner /// holds the argument types. 2674465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2675465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// Exceptions - There is another variable size array after ArgInfo that 2676465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl /// holds the exception types. 2677465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 267860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// NoexceptExpr - Instead of Exceptions, there may be a single Expr* pointing 267960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// to the expression in the noexcept() specifier. 268060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2681f85e193739c953358c865005855253af4f68a497John McCall /// ConsumedArgs - A variable size array, following Exceptions 2682f85e193739c953358c865005855253af4f68a497John McCall /// and of length NumArgs, holding flags indicating which arguments 2683f85e193739c953358c865005855253af4f68a497John McCall /// are consumed. This only appears if HasAnyConsumedArgs is true. 2684f85e193739c953358c865005855253af4f68a497John McCall 26855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 26864b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek 2687f85e193739c953358c865005855253af4f68a497John McCall const bool *getConsumedArgsBuffer() const { 2688f85e193739c953358c865005855253af4f68a497John McCall assert(hasAnyConsumedArgs()); 2689f85e193739c953358c865005855253af4f68a497John McCall 2690f85e193739c953358c865005855253af4f68a497John McCall // Find the end of the exceptions. 2691f85e193739c953358c865005855253af4f68a497John McCall Expr * const *eh_end = reinterpret_cast<Expr * const *>(arg_type_end()); 2692f85e193739c953358c865005855253af4f68a497John McCall if (getExceptionSpecType() != EST_ComputedNoexcept) 2693f85e193739c953358c865005855253af4f68a497John McCall eh_end += NumExceptions; 2694f85e193739c953358c865005855253af4f68a497John McCall else 2695f85e193739c953358c865005855253af4f68a497John McCall eh_end += 1; // NoexceptExpr 2696f85e193739c953358c865005855253af4f68a497John McCall 2697f85e193739c953358c865005855253af4f68a497John McCall return reinterpret_cast<const bool*>(eh_end); 2698f85e193739c953358c865005855253af4f68a497John McCall } 2699f85e193739c953358c865005855253af4f68a497John McCall 27005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 27015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 27025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getArgType(unsigned i) const { 27035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(i < NumArgs && "Invalid argument number!"); 2704942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner return arg_type_begin()[i]; 27055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2706465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2707e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo getExtProtoInfo() const { 2708e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall ExtProtoInfo EPI; 2709e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = getExtInfo(); 2710e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = isVariadic(); 271160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.ExceptionSpecType = getExceptionSpecType(); 2712e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = static_cast<unsigned char>(getTypeQuals()); 2713c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = getRefQualifier(); 271460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EPI.ExceptionSpecType == EST_Dynamic) { 271560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NumExceptions = NumExceptions; 271660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.Exceptions = exception_begin(); 271760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } else if (EPI.ExceptionSpecType == EST_ComputedNoexcept) { 271860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NoexceptExpr = getNoexceptExpr(); 271960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 2720f85e193739c953358c865005855253af4f68a497John McCall if (hasAnyConsumedArgs()) 2721f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = getConsumedArgsBuffer(); 2722e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return EPI; 2723e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 2724e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 272560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Get the kind of exception specification on this function. 272660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl ExceptionSpecificationType getExceptionSpecType() const { 272760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return static_cast<ExceptionSpecificationType>(ExceptionSpecType); 272860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 272960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Return whether this function has any kind of exception spec. 273060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasExceptionSpec() const { 273160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return getExceptionSpecType() != EST_None; 273260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 273360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Return whether this function has a dynamic (throw) exception spec. 273460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasDynamicExceptionSpec() const { 273560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return isDynamicExceptionSpec(getExceptionSpecType()); 273660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 2737fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// \brief Return whether this function has a noexcept exception spec. 273860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl bool hasNoexceptExceptionSpec() const { 273960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return isNoexceptExceptionSpec(getExceptionSpecType()); 274060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 274160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Result type of getNoexceptSpec(). 274260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl enum NoexceptResult { 274360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_NoNoexcept, ///< There is no noexcept specifier. 274460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_BadNoexcept, ///< The noexcept specifier has a bad expression. 274560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Dependent, ///< The noexcept specifier is dependent. 274660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Throw, ///< The noexcept specifier evaluates to false. 274760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NR_Nothrow ///< The noexcept specifier evaluates to true. 274860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl }; 274960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /// \brief Get the meaning of the noexcept spec on this function, if any. 27508026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl NoexceptResult getNoexceptSpec(ASTContext &Ctx) const; 2751465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned getNumExceptions() const { return NumExceptions; } 2752465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl QualType getExceptionType(unsigned i) const { 2753465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(i < NumExceptions && "Invalid exception number!"); 2754465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return exception_begin()[i]; 2755465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 275660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl Expr *getNoexceptExpr() const { 275760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (getExceptionSpecType() != EST_ComputedNoexcept) 275860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return 0; 275960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl // NoexceptExpr sits where the arguments end. 276060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return *reinterpret_cast<Expr *const *>(arg_type_end()); 2761d3fd6bad1249d3f34d71b73e2333fab0db51cce4Anders Carlsson } 27628026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl bool isNothrow(ASTContext &Ctx) const { 276360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl ExceptionSpecificationType EST = getExceptionSpecType(); 27647a614d8380297fcd2bc23986241905d97222948cRichard Smith assert(EST != EST_Delayed); 276560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EST == EST_DynamicNone || EST == EST_BasicNoexcept) 276660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return true; 276760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (EST != EST_ComputedNoexcept) 276860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return false; 27698026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl return getNoexceptSpec(Ctx) == NR_Nothrow; 2770c2f3e7f42c8bf9e8d4393a6e8c4762dafc4f28ddJohn McCall } 2771c2f3e7f42c8bf9e8d4393a6e8c4762dafc4f28ddJohn McCall 2772e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall using FunctionType::isVariadic; 277360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2774f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// \brief Determines whether this function prototype contains a 2775f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// parameter pack at the end. 2776f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// 2777f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// A function template whose last parameter is a parameter pack can be 2778f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// called with an arbitrary number of arguments, much like a variadic 2779f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor /// function. However, 2780f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor bool isTemplateVariadic() const; 2781f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor 2782971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned getTypeQuals() const { return FunctionType::getTypeQuals(); } 27831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2784c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2785c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor /// \brief Retrieve the ref-qualifier associated with this function type. 2786c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind getRefQualifier() const { 2787c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor return FunctionType::getRefQualifier(); 2788c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2789c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 27905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef const QualType *arg_type_iterator; 2791942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator arg_type_begin() const { 2792942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner return reinterpret_cast<const QualType *>(this+1); 2793942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner } 2794942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator arg_type_end() const { return arg_type_begin()+NumArgs; } 2795465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2796465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl typedef const QualType *exception_iterator; 2797465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl exception_iterator exception_begin() const { 2798465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // exceptions begin where arguments end 2799465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return arg_type_end(); 2800465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 2801465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl exception_iterator exception_end() const { 280260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (getExceptionSpecType() != EST_Dynamic) 280360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl return exception_begin(); 2804465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl return exception_begin() + NumExceptions; 2805465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl } 2806465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2807f85e193739c953358c865005855253af4f68a497John McCall bool hasAnyConsumedArgs() const { 2808f85e193739c953358c865005855253af4f68a497John McCall return HasAnyConsumedArgs; 2809f85e193739c953358c865005855253af4f68a497John McCall } 2810f85e193739c953358c865005855253af4f68a497John McCall bool isArgConsumed(unsigned I) const { 2811f85e193739c953358c865005855253af4f68a497John McCall assert(I < getNumArgs() && "argument index out of range!"); 2812f85e193739c953358c865005855253af4f68a497John McCall if (hasAnyConsumedArgs()) 2813f85e193739c953358c865005855253af4f68a497John McCall return getConsumedArgsBuffer()[I]; 2814f85e193739c953358c865005855253af4f68a497John McCall return false; 2815f85e193739c953358c865005855253af4f68a497John McCall } 2816f85e193739c953358c865005855253af4f68a497John McCall 2817bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2818bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2819bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 28205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Type *T) { 28215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getTypeClass() == FunctionProto; 28225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 282372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const FunctionProtoType *) { return true; } 2824465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 28258026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx); 28265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static void Profile(llvm::FoldingSetNodeID &ID, QualType Result, 2827942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner arg_type_iterator ArgTys, unsigned NumArgs, 28288026f6d82f7fa544bc0453714fe94bca62a1196eSebastian Redl const ExtProtoInfo &EPI, const ASTContext &Context); 28295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2832ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// \brief Represents the dependent type named by a dependently-scoped 2833ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// typename using declaration, e.g. 2834ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// using typename Base<T>::foo; 2835ed97649e9574b9d854fa4d6109c9333ae0993554John McCall/// Template instantiation turns these into the underlying type. 2836ed97649e9574b9d854fa4d6109c9333ae0993554John McCallclass UnresolvedUsingType : public Type { 2837ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *Decl; 2838ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 283919c8576b7328f4dc2d07682f5da552875c1912efJohn McCall UnresolvedUsingType(const UnresolvedUsingTypenameDecl *D) 2840d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(UnresolvedUsing, QualType(), true, false, 2841d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 284219c8576b7328f4dc2d07682f5da552875c1912efJohn McCall Decl(const_cast<UnresolvedUsingTypenameDecl*>(D)) {} 2843ed97649e9574b9d854fa4d6109c9333ae0993554John McCall friend class ASTContext; // ASTContext creates these. 2844ed97649e9574b9d854fa4d6109c9333ae0993554John McCallpublic: 2845ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2846ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *getDecl() const { return Decl; } 2847ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2848ed97649e9574b9d854fa4d6109c9333ae0993554John McCall bool isSugared() const { return false; } 2849ed97649e9574b9d854fa4d6109c9333ae0993554John McCall QualType desugar() const { return QualType(this, 0); } 2850ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2851ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static bool classof(const Type *T) { 2852ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return T->getTypeClass() == UnresolvedUsing; 2853ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2854ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static bool classof(const UnresolvedUsingType *) { return true; } 2855ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2856ed97649e9574b9d854fa4d6109c9333ae0993554John McCall void Profile(llvm::FoldingSetNodeID &ID) { 2857ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Profile(ID, Decl); 2858ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2859ed97649e9574b9d854fa4d6109c9333ae0993554John McCall static void Profile(llvm::FoldingSetNodeID &ID, 2860ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UnresolvedUsingTypenameDecl *D) { 2861ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ID.AddPointer(D); 2862ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } 2863ed97649e9574b9d854fa4d6109c9333ae0993554John McCall}; 2864ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2865ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 28665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass TypedefType : public Type { 2867162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefNameDecl *Decl; 2868c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanianprotected: 2869162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefType(TypeClass tc, const TypedefNameDecl *D, QualType can) 2870d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, can, can->isDependentType(), can->isVariablyModifiedType(), 2871d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 2872162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Decl(const_cast<TypedefNameDecl*>(D)) { 28735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isa<TypedefType>(can) && "Invalid canonical type"); 28745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer friend class ASTContext; // ASTContext creates these. 28765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 28771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2878162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefNameDecl *getDecl() const { return Decl; } 28791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2880bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2881bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const; 2882bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 288372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == Typedef; } 28845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const TypedefType *) { return true; } 28855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 288772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType (GCC extension). 288872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregorclass TypeOfExprType : public Type { 2889d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *TOExpr; 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2891b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregorprotected: 2892dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType(Expr *E, QualType can = QualType()); 2893d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff friend class ASTContext; // ASTContext creates these. 2894d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffpublic: 2895d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *getUnderlyingExpr() const { return TOExpr; } 28961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2897bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2898bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const; 2899bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2900bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2901bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2902bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 290372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == TypeOfExpr; } 290472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const TypeOfExprType *) { return true; } 2905d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff}; 2906d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 2907c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// \brief Internal representation of canonical, dependent 29081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typeof(expr) types. 2909c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// 2910c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// This class is used internally by the ASTContext to manage 2911c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// canonical, dependent types, only. Clients will only see instances 2912c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// of this class via TypeOfExprType nodes. 29131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass DependentTypeOfExprType 2914b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor : public TypeOfExprType, public llvm::FoldingSetNode { 29154ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 29161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2917b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregorpublic: 29184ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentTypeOfExprType(const ASTContext &Context, Expr *E) 2919b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor : TypeOfExprType(E), Context(Context) { } 29201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2921bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2922bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2923bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2924b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 2925b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Profile(ID, Context, getUnderlyingExpr()); 2926b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 29271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29284ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 2929b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Expr *E); 2930b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor}; 29311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2932d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff/// TypeOfType (GCC extension). 2933d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffclass TypeOfType : public Type { 2934d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff QualType TOType; 29351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypeOfType(QualType T, QualType can) 2936d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(TypeOf, can, T->isDependentType(), T->isVariablyModifiedType(), 2937d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor T->containsUnexpandedParameterPack()), 293835495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor TOType(T) { 2939d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(!isa<TypedefType>(can) && "Invalid canonical type"); 2940d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 2941d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff friend class ASTContext; // ASTContext creates these. 2942d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroffpublic: 2943d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff QualType getUnderlyingType() const { return TOType; } 29441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2945bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2946bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getUnderlyingType(); } 2947bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2948bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2949bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 2950bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 295172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const Type *T) { return T->getTypeClass() == TypeOf; } 2952d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff static bool classof(const TypeOfType *) { return true; } 2953d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff}; 29545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2955395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType (C++0x) 2956395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlssonclass DecltypeType : public Type { 2957395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Expr *E; 29581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2959563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // FIXME: We could get rid of UnderlyingType if we wanted to: We would have to 2960563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // Move getDesugaredType to ASTContext so that it can call getDecltypeForExpr 2961563a03b1338d31c2462def43253a722bc885d384Anders Carlsson // from it. 2962563a03b1338d31c2462def43253a722bc885d384Anders Carlsson QualType UnderlyingType; 29631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29649d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorprotected: 2965563a03b1338d31c2462def43253a722bc885d384Anders Carlsson DecltypeType(Expr *E, QualType underlyingType, QualType can = QualType()); 2966395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson friend class ASTContext; // ASTContext creates these. 2967395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlssonpublic: 2968395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Expr *getUnderlyingExpr() const { return E; } 2969563a03b1338d31c2462def43253a722bc885d384Anders Carlsson QualType getUnderlyingType() const { return UnderlyingType; } 2970563a03b1338d31c2462def43253a722bc885d384Anders Carlsson 2971bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 2972bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getUnderlyingType(); } 2973bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2974bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 2975bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return !isDependentType(); } 2976bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 2977395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson static bool classof(const Type *T) { return T->getTypeClass() == Decltype; } 2978395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson static bool classof(const DecltypeType *) { return true; } 2979395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson}; 29801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2981c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// \brief Internal representation of canonical, dependent 2982c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// decltype(expr) types. 2983c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// 2984c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// This class is used internally by the ASTContext to manage 2985c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// canonical, dependent types, only. Clients will only see instances 2986c4875ee41ba35f1d746f4266ce47461247f19f41Douglas Gregor/// of this class via DecltypeType nodes. 29879d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorclass DependentDecltypeType : public DecltypeType, public llvm::FoldingSetNode { 29884ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context; 29891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregorpublic: 29914ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad DependentDecltypeType(const ASTContext &Context, Expr *E); 29921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2993bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 2994bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 2995bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 29969d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 29979d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor Profile(ID, Context, getUnderlyingExpr()); 29989d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 29991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30004ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, 30011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *E); 30029d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor}; 30031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3004ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt/// \brief A unary type transform, which is a type constructed from another 3005ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntclass UnaryTransformType : public Type { 3006ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntpublic: 3007ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt enum UTTKind { 3008ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumUnderlyingType 3009ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt }; 3010ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3011ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntprivate: 3012ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt /// The untransformed type. 3013ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType BaseType; 3014ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt /// The transformed type if not dependent, otherwise the same as BaseType. 3015ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType UnderlyingType; 3016ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3017ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UTTKind UKind; 3018ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntprotected: 3019ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType(QualType BaseTy, QualType UnderlyingTy, UTTKind UKind, 3020ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType CanonicalTy); 3021ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt friend class ASTContext; 3022ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Huntpublic: 3023ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt bool isSugared() const { return !isDependentType(); } 3024ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType desugar() const { return UnderlyingType; } 3025ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3026ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType getUnderlyingType() const { return UnderlyingType; } 3027ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType getBaseType() const { return BaseType; } 3028ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3029ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UTTKind getUTTKind() const { return UKind; } 3030ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 3031ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt static bool classof(const Type *T) { 3032ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return T->getTypeClass() == UnaryTransform; 3033ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3034ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt static bool classof(const UnaryTransformType *) { return true; } 3035ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt}; 3036ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 30375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass TagType : public Type { 3038ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl /// Stores the TagDecl associated with this type. The decl may point to any 3039ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl /// TagDecl that declares the entity. 3040ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl TagDecl * decl; 30412ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 30422ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregorprotected: 304319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall TagType(TypeClass TC, const TagDecl *D, QualType can); 30442ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 30451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 3046ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl TagDecl *getDecl() const; 30471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30480b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor /// @brief Determines whether this type is in the process of being 30491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// defined. 3050ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl bool isBeingDefined() const; 30510b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor 30521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 305372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return T->getTypeClass() >= TagFirst && T->getTypeClass() <= TagLast; 305472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor } 30555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const TagType *) { return true; } 305672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const RecordType *) { return true; } 305772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor static bool classof(const EnumType *) { return true; } 30585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 30605edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// RecordType - This is a helper class that allows the use of isa/cast/dyncast 30615edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// to detect TagType objects of structs/unions/classes. 30625edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerclass RecordType : public TagType { 306349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidisprotected: 306419c8576b7328f4dc2d07682f5da552875c1912efJohn McCall explicit RecordType(const RecordDecl *D) 306519c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(Record, reinterpret_cast<const TagDecl*>(D), QualType()) { } 306672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor explicit RecordType(TypeClass TC, RecordDecl *D) 306719c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(TC, reinterpret_cast<const TagDecl*>(D), QualType()) { } 30682ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor friend class ASTContext; // ASTContext creates these. 30695edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerpublic: 30701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30715edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner RecordDecl *getDecl() const { 30725edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner return reinterpret_cast<RecordDecl*>(TagType::getDecl()); 30735edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner } 30741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FIXME: This predicate is a helper to QualType/Type. It needs to 30765edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner // recursively check all fields for const-ness. If any field is declared 30771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // const, it needs to return false. 30785edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner bool hasConstFields() const { return false; } 30795edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 3080bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3081bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3082bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 30832daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const TagType *T); 30842daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const Type *T) { 30852daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner return isa<TagType>(T) && classof(cast<TagType>(T)); 30862daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner } 30875edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner static bool classof(const RecordType *) { return true; } 30885edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner}; 30895edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 30905edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// EnumType - This is a helper class that allows the use of isa/cast/dyncast 30915edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner/// to detect TagType objects of enums. 30925edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerclass EnumType : public TagType { 309319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall explicit EnumType(const EnumDecl *D) 309419c8576b7328f4dc2d07682f5da552875c1912efJohn McCall : TagType(Enum, reinterpret_cast<const TagDecl*>(D), QualType()) { } 30952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor friend class ASTContext; // ASTContext creates these. 30965edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattnerpublic: 30971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30985edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner EnumDecl *getDecl() const { 30995edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner return reinterpret_cast<EnumDecl*>(TagType::getDecl()); 31005edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner } 31011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3102bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3103bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3104bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 31052daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const TagType *T); 31062daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner static bool classof(const Type *T) { 31072daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner return isa<TagType>(T) && classof(cast<TagType>(T)); 31082daa5df1b53f7ef745d724771384409f6f5df5c1Chris Lattner } 31095edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner static bool classof(const EnumType *) { return true; } 31105edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner}; 31115edb8bfe8472e7d7bf6a82386394ef27359eb846Chris Lattner 31129d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// AttributedType - An attributed type is a type to which a type 31139d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// attribute has been applied. The "modified type" is the 31149d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// fully-sugared type to which the attributed type was applied; 31159d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// generally it is not canonically equivalent to the attributed type. 31169d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// The "equivalent type" is the minimally-desugared type which the 31179d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// type is canonically equivalent to. 31189d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// 31199d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// For example, in the following attributed type: 31209d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// int32_t __attribute__((vector_size(16))) 31219d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the modified type is the TypedefType for int32_t 31229d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the equivalent type is VectorType(16, int32_t) 31239d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall/// - the canonical type is VectorType(16, int) 31249d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallclass AttributedType : public Type, public llvm::FoldingSetNode { 31259d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallpublic: 31269d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // It is really silly to have yet another attribute-kind enum, but 31279d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // clang::attr::Kind doesn't currently cover the pure type attrs. 31289d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall enum Kind { 31299d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // Expression operand. 3130170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_address_space, 3131170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_regparm, 3132170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_vector_size, 3133170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_neon_vector_type, 3134170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_neon_polyvector_type, 31359d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3136170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet FirstExprOperandKind = attr_address_space, 3137170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet LastExprOperandKind = attr_neon_polyvector_type, 31389d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31399d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // Enumerated operand (string or keyword). 3140170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet attr_objc_gc, 3141f85e193739c953358c865005855253af4f68a497John McCall attr_objc_lifetime, 3142414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr_pcs, 31439d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3144170464b7c0a2c0c86f2821f14a46f0d540cb5e94Francois Pichet FirstEnumOperandKind = attr_objc_gc, 3145414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov LastEnumOperandKind = attr_pcs, 31469d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31479d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall // No operand. 31483cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_noreturn, 31493cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_cdecl, 31503cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_fastcall, 31513cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_stdcall, 31523cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_thiscall, 31533cd47e7883dbfce73189b583850cea81e1d1d261Francois Pichet attr_pascal 31549d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall }; 31559d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31569d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallprivate: 31579d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType ModifiedType; 31589d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType EquivalentType; 31599d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31609d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall friend class ASTContext; // creates these 31619d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31629d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedType(QualType canon, Kind attrKind, 31639d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType modified, QualType equivalent) 31649d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall : Type(Attributed, canon, canon->isDependentType(), 31659d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall canon->isVariablyModifiedType(), 31669d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall canon->containsUnexpandedParameterPack()), 31679d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ModifiedType(modified), EquivalentType(equivalent) { 31689d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall AttributedTypeBits.AttrKind = attrKind; 31699d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31709d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31719d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCallpublic: 31729d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall Kind getAttrKind() const { 31739d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall return static_cast<Kind>(AttributedTypeBits.AttrKind); 31749d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31759d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31769d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType getModifiedType() const { return ModifiedType; } 31779d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType getEquivalentType() const { return EquivalentType; } 31789d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31799d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall bool isSugared() const { return true; } 31809d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType desugar() const { return getEquivalentType(); } 31819d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31829d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall void Profile(llvm::FoldingSetNodeID &ID) { 31839d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall Profile(ID, getAttrKind(), ModifiedType, EquivalentType); 31849d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31859d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31869d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, Kind attrKind, 31879d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall QualType modified, QualType equivalent) { 31889d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddInteger(attrKind); 31899d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddPointer(modified.getAsOpaquePtr()); 31909d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall ID.AddPointer(equivalent.getAsOpaquePtr()); 31919d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31929d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 31939d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static bool classof(const Type *T) { 31949d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall return T->getTypeClass() == Attributed; 31959d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall } 31969d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall static bool classof(const AttributedType *T) { return true; } 31979d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall}; 31989d156a7b1b2771e191f2f5a45a7b7a694129463bJohn McCall 3199fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregorclass TemplateTypeParmType : public Type, public llvm::FoldingSetNode { 32004fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Helper data collector for canonical types. 32014fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth struct CanonicalTTPTInfo { 32024fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned Depth : 15; 32034fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned ParameterPack : 1; 32044fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned Index : 16; 32054fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth }; 32064fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 32074fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth union { 32084fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Info for the canonical type. 32094fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanonicalTTPTInfo CanTTPTInfo; 32104fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // Info for the non-canonical type. 32114fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *TTPDecl; 32124fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth }; 321372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32144fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /// Build a non-canonical type. 32154fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmType(TemplateTypeParmDecl *TTPDecl, QualType Canon) 321635495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(TemplateTypeParm, Canon, /*Dependent=*/true, 32174fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /*VariablyModified=*/false, 32185d65e34b08b3e57a4da834195757d0d15baaffd0Chandler Carruth Canon->containsUnexpandedParameterPack()), 32194fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TTPDecl(TTPDecl) { } 322072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32214fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /// Build the canonical type. 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType(unsigned D, unsigned I, bool PP) 322335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(TemplateTypeParm, QualType(this, 0), /*Dependent=*/true, 32244fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth /*VariablyModified=*/false, PP) { 32254fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.Depth = D; 32264fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.Index = I; 32274fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth CanTTPTInfo.ParameterPack = PP; 32284fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 322972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 3230fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor friend class ASTContext; // ASTContext creates these 323172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 32324fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth const CanonicalTTPTInfo& getCanTTPTInfo() const { 32334fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth QualType Can = getCanonicalTypeInternal(); 32345d65e34b08b3e57a4da834195757d0d15baaffd0Chandler Carruth return Can->castAs<TemplateTypeParmType>()->CanTTPTInfo; 32354fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 32364fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 3237fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregorpublic: 32384fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned getDepth() const { return getCanTTPTInfo().Depth; } 32394fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth unsigned getIndex() const { return getCanTTPTInfo().Index; } 32404fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth bool isParameterPack() const { return getCanTTPTInfo().ParameterPack; } 32414fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 32424fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *getDecl() const { 32434fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth return isCanonicalUnqualified() ? 0 : TTPDecl; 32444fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 32454fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth 3246b7efff4bae117604f442bb6859c844f90b15f3ffChandler Carruth IdentifierInfo *getIdentifier() const; 32471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3248bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3249bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3250bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3251fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 32524fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth Profile(ID, getDepth(), getIndex(), isParameterPack(), getDecl()); 3253fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } 3254fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 32551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, unsigned Depth, 32561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned Index, bool ParameterPack, 32574fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TemplateTypeParmDecl *TTPDecl) { 3258fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor ID.AddInteger(Depth); 3259fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor ID.AddInteger(Index); 326076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson ID.AddBoolean(ParameterPack); 32614fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth ID.AddPointer(TTPDecl); 3262fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } 3263fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 32641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 32651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == TemplateTypeParm; 326672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 326772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor static bool classof(const TemplateTypeParmType *T) { return true; } 326872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor}; 3269fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 327049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Represents the result of substituting a type for a template 327149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// type parameter. 327249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// 327349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// Within an instantiated template, all template type parameters have 327449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// been replaced with these. They are used solely to record that a 327549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// type was originally written as a template type parameter; 327649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// therefore they are never canonical. 327749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallclass SubstTemplateTypeParmType : public Type, public llvm::FoldingSetNode { 327849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall // The original type parameter. 327949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *Replaced; 328049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 328149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(const TemplateTypeParmType *Param, QualType Canon) 328235495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(SubstTemplateTypeParm, Canon, Canon->isDependentType(), 3283d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Canon->isVariablyModifiedType(), 3284d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor Canon->containsUnexpandedParameterPack()), 328549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Replaced(Param) { } 328649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 328749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall friend class ASTContext; 328849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 328949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallpublic: 329049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// Gets the template parameter that was substituted for. 329149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *getReplacedParameter() const { 329249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return Replaced; 329349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 329449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 329549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// Gets the type that was substituted for the template 329649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall /// parameter. 329749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType getReplacementType() const { 329849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getCanonicalTypeInternal(); 329949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 330049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 330149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall bool isSugared() const { return true; } 330249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType desugar() const { return getReplacementType(); } 330349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 330449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void Profile(llvm::FoldingSetNodeID &ID) { 330549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Profile(ID, getReplacedParameter(), getReplacementType()); 330649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 330749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, 330849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall const TemplateTypeParmType *Replaced, 330949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 331049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall ID.AddPointer(Replaced); 331149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall ID.AddPointer(Replacement.getAsOpaquePtr()); 331249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 331349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 331449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static bool classof(const Type *T) { 331549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return T->getTypeClass() == SubstTemplateTypeParm; 331649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 331749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall static bool classof(const SubstTemplateTypeParmType *T) { return true; } 331849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall}; 331949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 3320c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// \brief Represents the result of substituting a set of types for a template 3321c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// type parameter pack. 3322c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// 3323c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// When a pack expansion in the source code contains multiple parameter packs 3324c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// and those parameter packs correspond to different levels of template 3325c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// parameter lists, this type node is used to represent a template type 3326c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// parameter pack from an outer level, which has already had its argument pack 3327c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// substituted but that still lives within a pack expansion that itself 3328c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// could not be instantiated. When actually performing a substitution into 3329c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// that pack expansion (e.g., when all template parameters have corresponding 3330c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// arguments), this type will be replaced with the \c SubstTemplateTypeParmType 3331c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor/// at the current pack substitution index. 3332c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregorclass SubstTemplateTypeParmPackType : public Type, public llvm::FoldingSetNode { 3333c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief The original type parameter. 3334c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *Replaced; 3335c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3336c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief A pointer to the set of template arguments that this 3337c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// parameter pack is instantiated with. 3338c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument *Arguments; 3339c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3340c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// \brief The number of template arguments in \c Arguments. 3341c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor unsigned NumArguments; 3342c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3343c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor SubstTemplateTypeParmPackType(const TemplateTypeParmType *Param, 3344c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor QualType Canon, 3345c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument &ArgPack); 3346c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3347c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor friend class ASTContext; 3348c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3349c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregorpublic: 3350b7efff4bae117604f442bb6859c844f90b15f3ffChandler Carruth IdentifierInfo *getIdentifier() const { return Replaced->getIdentifier(); } 3351c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3352c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor /// Gets the template parameter that was substituted for. 3353c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *getReplacedParameter() const { 3354c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor return Replaced; 3355c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor } 3356c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3357c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor bool isSugared() const { return false; } 3358c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor QualType desugar() const { return QualType(this, 0); } 3359c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3360c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor TemplateArgument getArgumentPack() const; 3361c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3362c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID); 3363c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, 3364c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateTypeParmType *Replaced, 3365c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor const TemplateArgument &ArgPack); 3366c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 3367c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static bool classof(const Type *T) { 3368c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor return T->getTypeClass() == SubstTemplateTypeParmPack; 3369c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor } 3370c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor static bool classof(const SubstTemplateTypeParmPackType *T) { return true; } 3371c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor}; 3372c3069d618f4661d923cb1b5c4525b082fce73b04Douglas Gregor 337334b41d939a1328f484511c6002ba2456db879a29Richard Smith/// \brief Represents a C++0x auto type. 337434b41d939a1328f484511c6002ba2456db879a29Richard Smith/// 337534b41d939a1328f484511c6002ba2456db879a29Richard Smith/// These types are usually a placeholder for a deduced type. However, within 337634b41d939a1328f484511c6002ba2456db879a29Richard Smith/// templates and before the initializer is attached, there is no deduced type 337734b41d939a1328f484511c6002ba2456db879a29Richard Smith/// and an auto type is type-dependent and canonical. 337834b41d939a1328f484511c6002ba2456db879a29Richard Smithclass AutoType : public Type, public llvm::FoldingSetNode { 337934b41d939a1328f484511c6002ba2456db879a29Richard Smith AutoType(QualType DeducedType) 338034b41d939a1328f484511c6002ba2456db879a29Richard Smith : Type(Auto, DeducedType.isNull() ? QualType(this, 0) : DeducedType, 338134b41d939a1328f484511c6002ba2456db879a29Richard Smith /*Dependent=*/DeducedType.isNull(), 338234b41d939a1328f484511c6002ba2456db879a29Richard Smith /*VariablyModified=*/false, /*ContainsParameterPack=*/false) { 338334b41d939a1328f484511c6002ba2456db879a29Richard Smith assert((DeducedType.isNull() || !DeducedType->isDependentType()) && 338434b41d939a1328f484511c6002ba2456db879a29Richard Smith "deduced a dependent type for auto"); 338534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 338634b41d939a1328f484511c6002ba2456db879a29Richard Smith 338734b41d939a1328f484511c6002ba2456db879a29Richard Smith friend class ASTContext; // ASTContext creates these 338834b41d939a1328f484511c6002ba2456db879a29Richard Smith 338934b41d939a1328f484511c6002ba2456db879a29Richard Smithpublic: 339034b41d939a1328f484511c6002ba2456db879a29Richard Smith bool isSugared() const { return isDeduced(); } 339134b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType desugar() const { return getCanonicalTypeInternal(); } 339234b41d939a1328f484511c6002ba2456db879a29Richard Smith 339334b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType getDeducedType() const { 339434b41d939a1328f484511c6002ba2456db879a29Richard Smith return isDeduced() ? getCanonicalTypeInternal() : QualType(); 339534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 339634b41d939a1328f484511c6002ba2456db879a29Richard Smith bool isDeduced() const { 339734b41d939a1328f484511c6002ba2456db879a29Richard Smith return !isDependentType(); 339834b41d939a1328f484511c6002ba2456db879a29Richard Smith } 339934b41d939a1328f484511c6002ba2456db879a29Richard Smith 340034b41d939a1328f484511c6002ba2456db879a29Richard Smith void Profile(llvm::FoldingSetNodeID &ID) { 340134b41d939a1328f484511c6002ba2456db879a29Richard Smith Profile(ID, getDeducedType()); 340234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 340334b41d939a1328f484511c6002ba2456db879a29Richard Smith 340434b41d939a1328f484511c6002ba2456db879a29Richard Smith static void Profile(llvm::FoldingSetNodeID &ID, 340534b41d939a1328f484511c6002ba2456db879a29Richard Smith QualType Deduced) { 340634b41d939a1328f484511c6002ba2456db879a29Richard Smith ID.AddPointer(Deduced.getAsOpaquePtr()); 340734b41d939a1328f484511c6002ba2456db879a29Richard Smith } 340834b41d939a1328f484511c6002ba2456db879a29Richard Smith 340934b41d939a1328f484511c6002ba2456db879a29Richard Smith static bool classof(const Type *T) { 341034b41d939a1328f484511c6002ba2456db879a29Richard Smith return T->getTypeClass() == Auto; 341134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 341234b41d939a1328f484511c6002ba2456db879a29Richard Smith static bool classof(const AutoType *T) { return true; } 341334b41d939a1328f484511c6002ba2456db879a29Richard Smith}; 341434b41d939a1328f484511c6002ba2456db879a29Richard Smith 34157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Represents the type of a template specialization as written 34167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// in the source code. 341755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor/// 34187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// Template specialization types represent the syntactic form of a 34197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template-id that refers to a type, e.g., @c vector<int>. Some 34207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template specialization types are syntactic sugar, whose canonical 34217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// type will point to some other type node that represents the 34227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// instantiation or class template specialization. For example, a 342355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor/// class template specialization type of @c vector<int> will refer to 34241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// a tag type for the instantiation 342555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor/// @c std::vector<int, std::allocator<int>>. 34267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// 34277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// Other template specialization types, for which the template name 34287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// is dependent, may be canonical types. These types are always 34297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// dependent. 34303e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith/// 34313e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith/// An instance of this type is followed by an array of TemplateArgument*s, 34323e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith/// then, if the template specialization type is for a type alias template, 34333e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith/// a QualType representing the non-canonical aliased type. 34341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass TemplateSpecializationType 343555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor : public Type, public llvm::FoldingSetNode { 343633500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief The name of the template being specialized. 34377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Template; 343855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 343940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief - The number of template arguments named in this class 344040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// template specialization. 344155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned NumArgs; 344255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 3443ef99001908e799c388f1363b1e607dad5f5b57d3John McCall TemplateSpecializationType(TemplateName T, 34447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 34453e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith unsigned NumArgs, QualType Canon, 34463e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith QualType Aliased); 344755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 344855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor friend class ASTContext; // ASTContext creates these 344955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 345055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregorpublic: 345140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Determine whether any of the given template arguments are 345240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// dependent. 345340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor static bool anyDependentTemplateArguments(const TemplateArgument *Args, 34541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned NumArgs); 345540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 3456833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall static bool anyDependentTemplateArguments(const TemplateArgumentLoc *Args, 3457833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall unsigned NumArgs); 3458833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3459d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static bool anyDependentTemplateArguments(const TemplateArgumentListInfo &); 3460d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 3461df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor /// \brief Print a template argument list, including the '<' and '>' 3462df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor /// enclosing the template arguments. 3463df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor static std::string PrintTemplateArgumentList(const TemplateArgument *Args, 3464d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor unsigned NumArgs, 3465dace95b13e2ceb0c3ec8de6babd926dc5114e1e5Douglas Gregor const PrintingPolicy &Policy, 3466dace95b13e2ceb0c3ec8de6babd926dc5114e1e5Douglas Gregor bool SkipBrackets = false); 3467df667e71b1daadeacb230cf94fc717843f1a138aDouglas Gregor 3468833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall static std::string PrintTemplateArgumentList(const TemplateArgumentLoc *Args, 3469833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall unsigned NumArgs, 3470833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const PrintingPolicy &Policy); 3471833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3472d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::string PrintTemplateArgumentList(const TemplateArgumentListInfo &, 3473d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const PrintingPolicy &Policy); 3474d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 347531f17ecbef57b5679c017c375db330546b7b5145John McCall /// True if this template specialization type matches a current 347631f17ecbef57b5679c017c375db330546b7b5145John McCall /// instantiation in the context in which it is found. 347731f17ecbef57b5679c017c375db330546b7b5145John McCall bool isCurrentInstantiation() const { 347871d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall return isa<InjectedClassNameType>(getCanonicalTypeInternal()); 347931f17ecbef57b5679c017c375db330546b7b5145John McCall } 348031f17ecbef57b5679c017c375db330546b7b5145John McCall 34813e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// True if this template specialization type is for a type alias 34823e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// template. 34833e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith bool isTypeAlias() const; 34843e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// Get the aliased type, if this is a specialization of a type alias 34853e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith /// template. 34863e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith QualType getAliasedType() const { 34873e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith assert(isTypeAlias() && "not a type alias template specialization"); 34883e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return *reinterpret_cast<const QualType*>(end()); 34893e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith } 34903e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 349140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor typedef const TemplateArgument * iterator; 349240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 349340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor iterator begin() const { return getArgs(); } 349433500955d731c73717af52088b7fc0e7a85681e7John McCall iterator end() const; // defined inline in TemplateBase.h 349540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 34967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor /// \brief Retrieve the name of the template that we are specializing. 34977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName getTemplateName() const { return Template; } 349855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 349940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Retrieve the template arguments. 35001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const TemplateArgument *getArgs() const { 350140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor return reinterpret_cast<const TemplateArgument *>(this + 1); 350240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor } 350340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 350440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor /// \brief Retrieve the number of template arguments. 350555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned getNumArgs() const { return NumArgs; } 350655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 350755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// \brief Retrieve a specific template argument as a type. 350855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// \precondition @c isArgType(Arg) 350933500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument &getArg(unsigned Idx) const; // in TemplateBase.h 351055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 351131f17ecbef57b5679c017c375db330546b7b5145John McCall bool isSugared() const { 35123e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return !isDependentType() || isCurrentInstantiation() || isTypeAlias(); 351331f17ecbef57b5679c017c375db330546b7b5145John McCall } 3514bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getCanonicalTypeInternal(); } 3515bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 35164ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx) { 351771d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall Profile(ID, Template, getArgs(), NumArgs, Ctx); 35183e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (isTypeAlias()) 35193e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith getAliasedType().Profile(ID); 352055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 352155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 35227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, TemplateName T, 352331f17ecbef57b5679c017c375db330546b7b5145John McCall const TemplateArgument *Args, 352431f17ecbef57b5679c017c375db330546b7b5145John McCall unsigned NumArgs, 35254ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context); 352655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 35281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == TemplateSpecialization; 352955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 35307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor static bool classof(const TemplateSpecializationType *T) { return true; } 353155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor}; 353255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 353331f17ecbef57b5679c017c375db330546b7b5145John McCall/// \brief The injected class name of a C++ class template or class 353431f17ecbef57b5679c017c375db330546b7b5145John McCall/// template partial specialization. Used to record that a type was 353531f17ecbef57b5679c017c375db330546b7b5145John McCall/// spelled with a bare identifier rather than as a template-id; the 353631f17ecbef57b5679c017c375db330546b7b5145John McCall/// equivalent for non-templated classes is just RecordType. 35373cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// 353831f17ecbef57b5679c017c375db330546b7b5145John McCall/// Injected class name types are always dependent. Template 353931f17ecbef57b5679c017c375db330546b7b5145John McCall/// instantiation turns these into RecordTypes. 35403cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// 354131f17ecbef57b5679c017c375db330546b7b5145John McCall/// Injected class name types are always canonical. This works 354231f17ecbef57b5679c017c375db330546b7b5145John McCall/// because it is impossible to compare an injected class name type 354331f17ecbef57b5679c017c375db330546b7b5145John McCall/// with the corresponding non-injected template type, for the same 354431f17ecbef57b5679c017c375db330546b7b5145John McCall/// reason that it is impossible to directly compare template 354531f17ecbef57b5679c017c375db330546b7b5145John McCall/// parameters from different dependent contexts: injected class name 354631f17ecbef57b5679c017c375db330546b7b5145John McCall/// types can only occur within the scope of a particular templated 354731f17ecbef57b5679c017c375db330546b7b5145John McCall/// declaration, and within that scope every template specialization 354831f17ecbef57b5679c017c375db330546b7b5145John McCall/// will canonicalize to the injected class name (when appropriate 354931f17ecbef57b5679c017c375db330546b7b5145John McCall/// according to the rules of the language). 35503cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallclass InjectedClassNameType : public Type { 35513cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall CXXRecordDecl *Decl; 35523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 355331f17ecbef57b5679c017c375db330546b7b5145John McCall /// The template specialization which this type represents. 355431f17ecbef57b5679c017c375db330546b7b5145John McCall /// For example, in 355531f17ecbef57b5679c017c375db330546b7b5145John McCall /// template <class T> class A { ... }; 355631f17ecbef57b5679c017c375db330546b7b5145John McCall /// this is A<T>, whereas in 355731f17ecbef57b5679c017c375db330546b7b5145John McCall /// template <class X, class Y> class A<B<X,Y> > { ... }; 355831f17ecbef57b5679c017c375db330546b7b5145John McCall /// this is A<B<X,Y> >. 355931f17ecbef57b5679c017c375db330546b7b5145John McCall /// 356031f17ecbef57b5679c017c375db330546b7b5145John McCall /// It is always unqualified, always a template specialization type, 356131f17ecbef57b5679c017c375db330546b7b5145John McCall /// and always dependent. 356231f17ecbef57b5679c017c375db330546b7b5145John McCall QualType InjectedType; 35633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 35643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall friend class ASTContext; // ASTContext creates these. 3565c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl friend class ASTReader; // FIXME: ASTContext::getInjectedClassNameType is not 3566c43b54cbc10654ed59de797898042e1a05265246Sebastian Redl // currently suitable for AST reading, too much 356743921b53b582145f0d1b7c48223bd4d9f0a9d1beArgyrios Kyrtzidis // interdependencies. 356831f17ecbef57b5679c017c375db330546b7b5145John McCall InjectedClassNameType(CXXRecordDecl *D, QualType TST) 356935495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : Type(InjectedClassName, QualType(), /*Dependent=*/true, 3570d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 3571d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 357231f17ecbef57b5679c017c375db330546b7b5145John McCall Decl(D), InjectedType(TST) { 35733cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<TemplateSpecializationType>(TST)); 35743cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(!TST.hasQualifiers()); 357531f17ecbef57b5679c017c375db330546b7b5145John McCall assert(TST->isDependentType()); 35763cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 35773cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 35783cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallpublic: 357931f17ecbef57b5679c017c375db330546b7b5145John McCall QualType getInjectedSpecializationType() const { return InjectedType; } 358031f17ecbef57b5679c017c375db330546b7b5145John McCall const TemplateSpecializationType *getInjectedTST() const { 358131f17ecbef57b5679c017c375db330546b7b5145John McCall return cast<TemplateSpecializationType>(InjectedType.getTypePtr()); 35823cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 35833cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 3584ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl CXXRecordDecl *getDecl() const; 35853cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 358631f17ecbef57b5679c017c375db330546b7b5145John McCall bool isSugared() const { return false; } 358731f17ecbef57b5679c017c375db330546b7b5145John McCall QualType desugar() const { return QualType(this, 0); } 35883cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 35893cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall static bool classof(const Type *T) { 35903cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return T->getTypeClass() == InjectedClassName; 35913cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 35923cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall static bool classof(const InjectedClassNameType *T) { return true; } 35933cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall}; 35943cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 3595465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief The kind of a tag type. 3596465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraenum TagTypeKind { 3597465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "struct" keyword. 3598465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Struct, 3599465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "union" keyword. 3600465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Union, 3601465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "class" keyword. 3602465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Class, 3603465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "enum" keyword. 3604465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TTK_Enum 3605465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara}; 3606465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 36074a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// \brief The elaboration keyword that precedes a qualified type name or 36084a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// introduces an elaborated-type-specifier. 36094a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregorenum ElaboratedTypeKeyword { 36104a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "struct" keyword introduces the elaborated-type-specifier. 36114a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ETK_Struct, 36124a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "union" keyword introduces the elaborated-type-specifier. 36134a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ETK_Union, 3614465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "class" keyword introduces the elaborated-type-specifier. 3615465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Class, 36164a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor /// \brief The "enum" keyword introduces the elaborated-type-specifier. 3617465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Enum, 3618465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief The "typename" keyword precedes the qualified type name, e.g., 3619465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \c typename T::type. 3620465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_Typename, 3621465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// \brief No keyword precedes the qualified type name. 3622465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ETK_None 36234a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor}; 3624465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3625465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// A helper class for Type nodes having an ElaboratedTypeKeyword. 3626465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// The keyword in stored in the free bits of the base class. 3627465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// Also provides a few static helpers for converting and printing 3628465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// elaborated type keyword and tag type kind enumerations. 3629465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass TypeWithKeyword : public Type { 3630465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraprotected: 3631465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara TypeWithKeyword(ElaboratedTypeKeyword Keyword, TypeClass tc, 3632d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor QualType Canonical, bool Dependent, bool VariablyModified, 3633d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool ContainsUnexpandedParameterPack) 3634d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(tc, Canonical, Dependent, VariablyModified, 3635d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor ContainsUnexpandedParameterPack) { 363677be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall TypeWithKeywordBits.Keyword = Keyword; 363777be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall } 3638465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3639465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnarapublic: 3640465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword getKeyword() const { 364177be2b485f65ad134b3804a6930d5df9d0d974ceJohn McCall return static_cast<ElaboratedTypeKeyword>(TypeWithKeywordBits.Keyword); 3642465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3643465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3644465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getKeywordForTypeSpec - Converts a type specifier (DeclSpec::TST) 3645465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// into an elaborated type keyword. 3646465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static ElaboratedTypeKeyword getKeywordForTypeSpec(unsigned TypeSpec); 3647465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3648465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getTagTypeKindForTypeSpec - Converts a type specifier (DeclSpec::TST) 3649465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// into a tag type kind. It is an error to provide a type specifier 3650465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// which *isn't* a tag kind here. 3651465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static TagTypeKind getTagTypeKindForTypeSpec(unsigned TypeSpec); 3652465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3653465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getKeywordForTagDeclKind - Converts a TagTypeKind into an 3654465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// elaborated type keyword. 3655465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static ElaboratedTypeKeyword getKeywordForTagTypeKind(TagTypeKind Tag); 3656465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3657465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// getTagTypeKindForKeyword - Converts an elaborated type keyword into 3658465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara // a TagTypeKind. It is an error to provide an elaborated type keyword 3659465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara /// which *isn't* a tag kind here. 3660465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static TagTypeKind getTagTypeKindForKeyword(ElaboratedTypeKeyword Keyword); 3661465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3662465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static bool KeywordIsTagTypeKind(ElaboratedTypeKeyword Keyword); 3663465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3664465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static const char *getKeywordName(ElaboratedTypeKeyword Keyword); 3665465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3666465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static const char *getTagTypeKindName(TagTypeKind Kind) { 3667465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return getKeywordName(getKeywordForTagTypeKind(Kind)); 3668465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3669465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3670465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara class CannotCastToThisType {}; 3671465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static CannotCastToThisType classof(const Type *); 3672465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara}; 3673465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3674465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Represents a type that was referred to using an elaborated type 3675465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// keyword, e.g., struct S, or via a qualified name, e.g., N::M::type, 3676465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// or both. 3677e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor/// 3678e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor/// This type is used to keep track of a type name as written in the 3679465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// source code, including tag keywords and any nested-name-specifiers. 3680465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// The type itself is always "sugar", used to express what was written 3681465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// in the source code but containing no additional semantic information. 3682465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass ElaboratedType : public TypeWithKeyword, public llvm::FoldingSetNode { 3683465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3684ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor /// \brief The nested name specifier containing the qualifier. 3685ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *NNS; 3686e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3687e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor /// \brief The type that this qualified name refers to. 3688e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType; 3689e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3690465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedType(ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS, 3691465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara QualType NamedType, QualType CanonType) 3692465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara : TypeWithKeyword(Keyword, Elaborated, CanonType, 369335495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor NamedType->isDependentType(), 3694d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NamedType->isVariablyModifiedType(), 3695d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NamedType->containsUnexpandedParameterPack()), 3696465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS(NNS), NamedType(NamedType) { 3697465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara assert(!(Keyword == ETK_None && NNS == 0) && 3698465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara "ElaboratedType cannot have elaborated type keyword " 3699465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara "and name qualifier both null."); 3700465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3701e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3702e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor friend class ASTContext; // ASTContext creates these 3703e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3704e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregorpublic: 370533500955d731c73717af52088b7fc0e7a85681e7John McCall ~ElaboratedType(); 3706465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3707ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor /// \brief Retrieve the qualification on this type. 3708ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *getQualifier() const { return NNS; } 3709e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3710e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor /// \brief Retrieve the type named by the qualified-id. 3711e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType getNamedType() const { return NamedType; } 3712e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3713bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Remove a single level of sugar. 3714bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return getNamedType(); } 3715bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3716bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall /// \brief Returns whether this type directly provides sugar. 3717bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return true; } 3718bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3719e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3720465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Profile(ID, getKeyword(), NNS, NamedType); 3721e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor } 3722e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 3723465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static void Profile(llvm::FoldingSetNodeID &ID, ElaboratedTypeKeyword Keyword, 3724465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS, QualType NamedType) { 3725465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ID.AddInteger(Keyword); 3726ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ID.AddPointer(NNS); 3727ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NamedType.Profile(ID); 3728ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor } 3729e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 37301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 3731465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T->getTypeClass() == Elaborated; 3732e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor } 3733465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara static bool classof(const ElaboratedType *T) { return true; } 3734e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor}; 3735e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 37364a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// \brief Represents a qualified type name for which the type name is 37374a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent. 3738d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor/// 37394a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// DependentNameType represents a class of dependent types that involve a 37404a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent nested-name-specifier (e.g., "T::") followed by a (dependent) 37414a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// name of a type. The DependentNameType may start with a "typename" (for a 37424a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// typename-specifier), "class", "struct", "union", or "enum" (for a 37434a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// dependent elaborated-type-specifier), or nothing (in contexts where we 37444a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor/// know that we must be referring to a type, e.g., in a base class specifier). 3745465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnaraclass DependentNameType : public TypeWithKeyword, public llvm::FoldingSetNode { 3746465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara 3747d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief The nested name specifier containing the qualifier. 3748d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *NNS; 3749d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3750d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief The type that this typename specifier refers to. 375133500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name; 3752d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37534a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType(ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS, 37544a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const IdentifierInfo *Name, QualType CanonType) 375535495eb14f22c4e96956912e23ca2a433227ad8cDouglas Gregor : TypeWithKeyword(Keyword, DependentName, CanonType, /*Dependent=*/true, 3756d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /*VariablyModified=*/false, 3757d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor NNS->containsUnexpandedParameterPack()), 3758465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS(NNS), Name(Name) { 37591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(NNS->isDependent() && 37604714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor "DependentNameType requires a dependent nested-name-specifier"); 3761d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3762d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3763d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor friend class ASTContext; // ASTContext creates these 3764d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3765d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregorpublic: 3766d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor /// \brief Retrieve the qualification on this type. 3767d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *getQualifier() const { return NNS; } 3768d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// \brief Retrieve the type named by the typename specifier as an 37701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// identifier. 37711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// 37721734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// This routine will return a non-NULL identifier pointer when the 37731734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// form of the original typename was terminated by an identifier, 37741734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor /// e.g., "typename T::type". 37751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const IdentifierInfo *getIdentifier() const { 377633500955d731c73717af52088b7fc0e7a85681e7John McCall return Name; 37771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 3778d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 3779bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 3780bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 3781bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 3782d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3783465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Profile(ID, getKeyword(), NNS, Name); 3784d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3785d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37864a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, ElaboratedTypeKeyword Keyword, 378733500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS, const IdentifierInfo *Name) { 37884a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ID.AddInteger(Keyword); 3789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor ID.AddPointer(NNS); 379033500955d731c73717af52088b7fc0e7a85681e7John McCall ID.AddPointer(Name); 3791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 3792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 37931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 37944714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor return T->getTypeClass() == DependentName; 3795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 37964714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor static bool classof(const DependentNameType *T) { return true; } 3797d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor}; 3798d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 379933500955d731c73717af52088b7fc0e7a85681e7John McCall/// DependentTemplateSpecializationType - Represents a template 380033500955d731c73717af52088b7fc0e7a85681e7John McCall/// specialization type whose template cannot be resolved, e.g. 380133500955d731c73717af52088b7fc0e7a85681e7John McCall/// A<T>::template B<T> 380233500955d731c73717af52088b7fc0e7a85681e7John McCallclass DependentTemplateSpecializationType : 380333500955d731c73717af52088b7fc0e7a85681e7John McCall public TypeWithKeyword, public llvm::FoldingSetNode { 380433500955d731c73717af52088b7fc0e7a85681e7John McCall 380533500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief The nested name specifier containing the qualifier. 380633500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS; 380733500955d731c73717af52088b7fc0e7a85681e7John McCall 380833500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief The identifier of the template. 380933500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name; 381033500955d731c73717af52088b7fc0e7a85681e7John McCall 381133500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief - The number of template arguments named in this class 381233500955d731c73717af52088b7fc0e7a85681e7John McCall /// template specialization. 381333500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs; 381433500955d731c73717af52088b7fc0e7a85681e7John McCall 381533500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *getArgBuffer() const { 381633500955d731c73717af52088b7fc0e7a85681e7John McCall return reinterpret_cast<const TemplateArgument*>(this+1); 381733500955d731c73717af52088b7fc0e7a85681e7John McCall } 381833500955d731c73717af52088b7fc0e7a85681e7John McCall TemplateArgument *getArgBuffer() { 381933500955d731c73717af52088b7fc0e7a85681e7John McCall return reinterpret_cast<TemplateArgument*>(this+1); 382033500955d731c73717af52088b7fc0e7a85681e7John McCall } 382133500955d731c73717af52088b7fc0e7a85681e7John McCall 3822ef99001908e799c388f1363b1e607dad5f5b57d3John McCall DependentTemplateSpecializationType(ElaboratedTypeKeyword Keyword, 382333500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS, 382433500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 382533500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs, 382633500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *Args, 382733500955d731c73717af52088b7fc0e7a85681e7John McCall QualType Canon); 382833500955d731c73717af52088b7fc0e7a85681e7John McCall 382933500955d731c73717af52088b7fc0e7a85681e7John McCall friend class ASTContext; // ASTContext creates these 383033500955d731c73717af52088b7fc0e7a85681e7John McCall 383133500955d731c73717af52088b7fc0e7a85681e7John McCallpublic: 383233500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *getQualifier() const { return NNS; } 383333500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *getIdentifier() const { return Name; } 383433500955d731c73717af52088b7fc0e7a85681e7John McCall 383533500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief Retrieve the template arguments. 383633500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *getArgs() const { 383733500955d731c73717af52088b7fc0e7a85681e7John McCall return getArgBuffer(); 383833500955d731c73717af52088b7fc0e7a85681e7John McCall } 383933500955d731c73717af52088b7fc0e7a85681e7John McCall 384033500955d731c73717af52088b7fc0e7a85681e7John McCall /// \brief Retrieve the number of template arguments. 384133500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned getNumArgs() const { return NumArgs; } 384233500955d731c73717af52088b7fc0e7a85681e7John McCall 384333500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument &getArg(unsigned Idx) const; // in TemplateBase.h 384433500955d731c73717af52088b7fc0e7a85681e7John McCall 384533500955d731c73717af52088b7fc0e7a85681e7John McCall typedef const TemplateArgument * iterator; 384633500955d731c73717af52088b7fc0e7a85681e7John McCall iterator begin() const { return getArgs(); } 384733500955d731c73717af52088b7fc0e7a85681e7John McCall iterator end() const; // inline in TemplateBase.h 384833500955d731c73717af52088b7fc0e7a85681e7John McCall 384933500955d731c73717af52088b7fc0e7a85681e7John McCall bool isSugared() const { return false; } 385033500955d731c73717af52088b7fc0e7a85681e7John McCall QualType desugar() const { return QualType(this, 0); } 385133500955d731c73717af52088b7fc0e7a85681e7John McCall 38524ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context) { 385333500955d731c73717af52088b7fc0e7a85681e7John McCall Profile(ID, Context, getKeyword(), NNS, Name, NumArgs, getArgs()); 385433500955d731c73717af52088b7fc0e7a85681e7John McCall } 385533500955d731c73717af52088b7fc0e7a85681e7John McCall 385633500955d731c73717af52088b7fc0e7a85681e7John McCall static void Profile(llvm::FoldingSetNodeID &ID, 38574ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad const ASTContext &Context, 385833500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword, 385933500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *Qualifier, 386033500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 386133500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs, 386233500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *Args); 386333500955d731c73717af52088b7fc0e7a85681e7John McCall 386433500955d731c73717af52088b7fc0e7a85681e7John McCall static bool classof(const Type *T) { 386533500955d731c73717af52088b7fc0e7a85681e7John McCall return T->getTypeClass() == DependentTemplateSpecialization; 386633500955d731c73717af52088b7fc0e7a85681e7John McCall } 386733500955d731c73717af52088b7fc0e7a85681e7John McCall static bool classof(const DependentTemplateSpecializationType *T) { 386833500955d731c73717af52088b7fc0e7a85681e7John McCall return true; 386933500955d731c73717af52088b7fc0e7a85681e7John McCall } 387033500955d731c73717af52088b7fc0e7a85681e7John McCall}; 387133500955d731c73717af52088b7fc0e7a85681e7John McCall 38727536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \brief Represents a pack expansion of types. 38737536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 38747536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Pack expansions are part of C++0x variadic templates. A pack 38757536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// expansion contains a pattern, which itself contains one or more 38767536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// "unexpanded" parameter packs. When instantiated, a pack expansion 38777536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// produces a series of types, each instantiated from the pattern of 38787536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// the expansion, where the Ith instantiation of the pattern uses the 38797536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Ith arguments bound to each of the unexpanded parameter packs. The 38807536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// pack expansion is considered to "expand" these unexpanded 38817536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// parameter packs. 38827536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 38837536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \code 38847536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// template<typename ...Types> struct tuple; 38857536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 38867536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// template<typename ...Types> 38877536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// struct tuple_of_references { 38887536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// typedef tuple<Types&...> type; 38897536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// }; 38907536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// \endcode 38917536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// 38927536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// Here, the pack expansion \c Types&... is represented via a 38937536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor/// PackExpansionType whose pattern is Types&. 38947536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregorclass PackExpansionType : public Type, public llvm::FoldingSetNode { 38957536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// \brief The pattern of the pack expansion. 38967536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType Pattern; 38977536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3898cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// \brief The number of expansions that this pack expansion will 3899cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// generate when substituted (+1), or indicates that 3900cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// 3901cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// This field will only have a non-zero value when some of the parameter 3902cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// packs that occur within the pattern have been substituted but others have 3903cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// not. 3904cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor unsigned NumExpansions; 3905cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 3906cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor PackExpansionType(QualType Pattern, QualType Canon, 3907cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions) 39087536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor : Type(PackExpansion, Canon, /*Dependent=*/true, 39097536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /*VariableModified=*/Pattern->isVariablyModifiedType(), 39107536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 3911cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor Pattern(Pattern), 3912cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor NumExpansions(NumExpansions? *NumExpansions + 1: 0) { } 39137536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39147536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor friend class ASTContext; // ASTContext creates these 3915cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 39167536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregorpublic: 39177536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// \brief Retrieve the pattern of this pack expansion, which is the 39187536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// type that will be repeatedly instantiated when instantiating the 39197536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor /// pack expansion itself. 39207536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType getPattern() const { return Pattern; } 39217536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3922cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// \brief Retrieve the number of expansions that this pack expansion will 3923cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor /// generate, if known. 3924cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> getNumExpansions() const { 3925cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor if (NumExpansions) 3926cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor return NumExpansions - 1; 3927cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 3928cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor return llvm::Optional<unsigned>(); 3929cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor } 3930cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor 39317536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor bool isSugared() const { return false; } 39327536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor QualType desugar() const { return QualType(this, 0); } 39337536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39347536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor void Profile(llvm::FoldingSetNodeID &ID) { 3935cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor Profile(ID, getPattern(), getNumExpansions()); 39367536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39377536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3938cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor static void Profile(llvm::FoldingSetNodeID &ID, QualType Pattern, 3939cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions) { 39407536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor ID.AddPointer(Pattern.getAsOpaquePtr()); 3941cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor ID.AddBoolean(NumExpansions); 3942cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor if (NumExpansions) 3943cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor ID.AddInteger(*NumExpansions); 39447536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39457536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 39467536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor static bool classof(const Type *T) { 39477536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor return T->getTypeClass() == PackExpansion; 39487536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39497536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor static bool classof(const PackExpansionType *T) { 39507536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor return true; 39517536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor } 39527536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor}; 39537536dd5e6c99584481b7dab68b7e7d8df9c54054Douglas Gregor 3954c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCObjectType - Represents a class type in Objective C. 3955c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// Every Objective C type is a combination of a base type and a 3956c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// list of protocols. 3957c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3958c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// Given the following declarations: 3959c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// @class C; 3960c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// @protocol P; 3961c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3962c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 'C' is an ObjCInterfaceType C. It is sugar for an ObjCObjectType 3963c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// with base C and no protocols. 3964c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3965c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 'C<P>' is an ObjCObjectType with base C and protocol list [P]. 3966c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3967e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 'id' is a TypedefType which is sugar for an ObjCPointerType whose 3968e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// pointee is an ObjCObjectType with base BuiltinType::ObjCIdType 3969e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// and no protocols. 3970c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// 3971e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 'id<P>' is an ObjCPointerType whose pointee is an ObjCObjecType 3972e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// with base BuiltinType::ObjCIdType and protocol list [P]. Eventually 3973e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// this should get its own sugar class to better represent the source. 3974c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCObjectType : public Type { 3975b870b88df784c2940efce448ebfaf54dece14666John McCall // ObjCObjectType.NumProtocols - the number of protocols stored 3976b870b88df784c2940efce448ebfaf54dece14666John McCall // after the ObjCObjectPointerType node. 397771c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // 397871c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // These protocols are those written directly on the type. If 397971c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // protocol qualifiers ever become additive, the iterators will need 398071c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // to get kindof complicated. 398171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // 398271c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // In the canonical object type, these are sorted alphabetically 398371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall // and uniqued. 3984c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff 3985c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// Either a BuiltinType or an InterfaceType or sugar for either. 3986c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType BaseType; 3987c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 3988c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *getProtocolStorage() const { 3989c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return const_cast<ObjCObjectType*>(this)->getProtocolStorage(); 3990c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 3991c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 3992c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl **getProtocolStorage(); 3993c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 3994c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallprotected: 3995c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectType(QualType Canonical, QualType Base, 3996c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *Protocols, unsigned NumProtocols); 3997c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 3998c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall enum Nonce_ObjCInterface { Nonce_ObjCInterface }; 3999c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectType(enum Nonce_ObjCInterface) 4000d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(ObjCInterface, QualType(), false, false, false), 400171c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall BaseType(QualType(this_(), 0)) { 4002b870b88df784c2940efce448ebfaf54dece14666John McCall ObjCObjectTypeBits.NumProtocols = 0; 400371c3673d1e3756d8ef3cbc559fcad1d0b2f18a1fJohn McCall } 4004c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff 40053536b443bc50d58a79f14fca9b6842541a434854Steve Naroffpublic: 4006e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getBaseType - Gets the base type of this object type. This is 4007e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// always (possibly sugar for) one of: 4008e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - the 'id' builtin type (as opposed to the 'id' type visible to the 4009e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// user, which is a typedef for an ObjCPointerType) 4010e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - the 'Class' builtin type (same caveat) 4011e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// - an ObjCObjectType (currently always an ObjCInterfaceType) 4012c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType getBaseType() const { return BaseType; } 401371842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek 4014c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCId() const { 4015c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getBaseType()->isSpecificBuiltinType(BuiltinType::ObjCId); 4016c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4017c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCClass() const { 4018c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getBaseType()->isSpecificBuiltinType(BuiltinType::ObjCClass); 4019c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4020c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedId() const { return qual_empty() && isObjCId(); } 4021c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedClass() const { return qual_empty() && isObjCClass(); } 4022c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCUnqualifiedIdOrClass() const { 4023c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!qual_empty()) return false; 4024c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const BuiltinType *T = getBaseType()->getAs<BuiltinType>()) 4025c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getKind() == BuiltinType::ObjCId || 4026c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T->getKind() == BuiltinType::ObjCClass; 4027c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return false; 4028c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4029c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCQualifiedId() const { return !qual_empty() && isObjCId(); } 4030c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isObjCQualifiedClass() const { return !qual_empty() && isObjCClass(); } 4031c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4032c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// Gets the interface declaration for this object type, if the base type 4033c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// really is an interface. 4034c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceDecl *getInterface() const; 4035c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4036c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall typedef ObjCProtocolDecl * const *qual_iterator; 4037c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4038c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_begin() const { return getProtocolStorage(); } 4039c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_end() const { return qual_begin() + getNumProtocols(); } 4040c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4041c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool qual_empty() const { return getNumProtocols() == 0; } 40421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4043c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff /// getNumProtocols - Return the number of qualifying protocols in this 4044c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff /// interface type, or 0 if there are none. 4045b870b88df784c2940efce448ebfaf54dece14666John McCall unsigned getNumProtocols() const { return ObjCObjectTypeBits.NumProtocols; } 404614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4047c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall /// \brief Fetch a protocol by index. 404873dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor ObjCProtocolDecl *getProtocol(unsigned I) const { 404973dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor assert(I < getNumProtocols() && "Out-of-range protocol access"); 405073dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor return qual_begin()[I]; 405173dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor } 405273dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 4053bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 4054bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 4055bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 4056c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static bool classof(const Type *T) { 4057c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getTypeClass() == ObjCObject || 4058c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T->getTypeClass() == ObjCInterface; 4059c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4060c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static bool classof(const ObjCObjectType *) { return true; } 4061c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall}; 4062c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4063c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCObjectTypeImpl - A class providing a concrete implementation 4064c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// of ObjCObjectType, so as to not increase the footprint of 4065c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCInterfaceType. Code outside of ASTContext and the core type 4066c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// system should not reference this type. 4067c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCObjectTypeImpl : public ObjCObjectType, public llvm::FoldingSetNode { 4068c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall friend class ASTContext; 4069c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4070c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // If anyone adds fields here, ObjCObjectType::getProtocolStorage() 4071c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // will need to be modified. 4072c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4073c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypeImpl(QualType Canonical, QualType Base, 4074c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *Protocols, 4075c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned NumProtocols) 4076c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall : ObjCObjectType(Canonical, Base, Protocols, NumProtocols) {} 4077c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4078c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallpublic: 4079c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff void Profile(llvm::FoldingSetNodeID &ID); 40801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, 4081c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType Base, 4082c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl *const *protocols, 4083c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned NumProtocols); 4084c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall}; 40851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4086c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline ObjCProtocolDecl **ObjCObjectType::getProtocolStorage() { 4087c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return reinterpret_cast<ObjCProtocolDecl**>( 4088c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static_cast<ObjCObjectTypeImpl*>(this) + 1); 4089c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall} 4090c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4091c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// ObjCInterfaceType - Interfaces are the core concept in Objective-C for 4092c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// object oriented design. They basically correspond to C++ classes. There 4093c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// are two kinds of interface types, normal interfaces like "NSString" and 4094c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// qualified interfaces, which are qualified with a protocol list like 4095c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// "NSString<NSCopyable, NSAmazing>". 4096e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// 4097e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// ObjCInterfaceType guarantees the following properties when considered 4098e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// as a subtype of its superclass, ObjCObjectType: 4099e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// - There are no protocol qualifiers. To reinforce this, code which 4100e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// tries to invoke the protocol methods via an ObjCInterfaceType will 4101e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// fail to compile. 4102e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// - It is its own base type. That is, if T is an ObjCInterfaceType*, 4103e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// T->getBaseType() == QualType(T, 0). 4104c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallclass ObjCInterfaceType : public ObjCObjectType { 4105c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceDecl *Decl; 4106c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4107c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceType(const ObjCInterfaceDecl *D) 4108c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall : ObjCObjectType(Nonce_ObjCInterface), 4109c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Decl(const_cast<ObjCInterfaceDecl*>(D)) {} 4110c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall friend class ASTContext; // ASTContext creates these. 41111fb0caaa7bef765b85972274e3b434af2572c141John McCall 4112c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallpublic: 4113e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getDecl - Get the declaration of this interface. 4114deacbdca554298ccdf636f19c6094a8825ec6b34Douglas Gregor ObjCInterfaceDecl *getDecl() const { return Decl; } 4115c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4116c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool isSugared() const { return false; } 4117c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType desugar() const { return QualType(this, 0); } 41180b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 41191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 41201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ObjCInterface; 41213536b443bc50d58a79f14fca9b6842541a434854Steve Naroff } 4122a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek static bool classof(const ObjCInterfaceType *) { return true; } 4123c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4124c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Nonsense to "hide" certain members of ObjCObjectType within this 4125c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // class. People asking for protocols on an ObjCInterfaceType are 4126c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // not going to get what they want: ObjCInterfaceTypes are 4127c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // guaranteed to have no protocols. 4128c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall enum { 4129c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator, 4130c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_begin, 4131c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_end, 4132c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getNumProtocols, 4133c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getProtocol 4134c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall }; 41353536b443bc50d58a79f14fca9b6842541a434854Steve Naroff}; 41363536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 4137c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline ObjCInterfaceDecl *ObjCObjectType::getInterface() const { 4138c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCInterfaceType *T = 4139c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getBaseType()->getAs<ObjCInterfaceType>()) 4140c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return T->getDecl(); 4141c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return 0; 4142c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall} 4143c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4144e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// ObjCObjectPointerType - Used to represent a pointer to an 4145e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// Objective C object. These are constructed from pointer 4146e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// declarators when the pointee type is an ObjCObjectType (or sugar 4147e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// for one). In addition, the 'id' and 'Class' types are typedefs 4148e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// for these, and the protocol-qualified types 'id<P>' and 'Class<P>' 4149e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// are translated into these. 415014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff/// 4151e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// Pointers to pointers to Objective C objects are still PointerTypes; 4152e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall/// only the first level of pointer gets it own type implementation. 415314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffclass ObjCObjectPointerType : public Type, public llvm::FoldingSetNode { 4154e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall QualType PointeeType; 41551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4156c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerType(QualType Canonical, QualType Pointee) 4157d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor : Type(ObjCObjectPointer, Canonical, false, false, false), 4158c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall PointeeType(Pointee) {} 415914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff friend class ASTContext; // ASTContext creates these. 41601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 416114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffpublic: 4162e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getPointeeType - Gets the type pointed to by this ObjC pointer. 4163e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// The result will always be an ObjCObjectType or sugar thereof. 416414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff QualType getPointeeType() const { return PointeeType; } 416514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4166e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getObjCObjectType - Gets the type pointed to by this ObjC 4167e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// pointer. This method always returns non-null. 4168e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4169e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// This method is equivalent to getPointeeType() except that 4170e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// it discards any typedefs (or other sugar) between this 4171e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type and the "outermost" object type. So for: 4172e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// @class A; @protocol P; @protocol Q; 4173e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A<P> AP; 4174e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A A1; 4175e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A1<P> A1P; 4176e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// typedef A1P<Q> A1PQ; 4177e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A*', getObjectType() will return 'A'. 4178e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A<P>*', getObjectType() will return 'A<P>'. 4179e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'AP*', getObjectType() will return 'A<P>'. 4180e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1*', getObjectType() will return 'A'. 4181e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1<P>*', getObjectType() will return 'A1<P>'. 4182e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1P*', getObjectType() will return 'A1<P>'. 4183e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// For 'A1PQ*', getObjectType() will return 'A1<Q>', because 4184e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// adding protocols to a protocol-qualified base discards the 4185e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// old qualifiers (for now). But if it didn't, getObjectType() 4186e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// would return 'A1P<Q>' (and we'd have to make iterating over 4187e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// qualifiers more complicated). 4188c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *getObjectType() const { 4189d0370f59e79702ac908c81bf556519f91e9ca297John McCall return PointeeType->castAs<ObjCObjectType>(); 4190c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 4191c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4192e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getInterfaceType - If this pointer points to an Objective C 4193e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// @interface type, gets the type for that interface. Any protocol 4194e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// qualifiers on the interface are ignored. 4195e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4196e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \return null if the base type for this pointer is 'id' or 'Class' 41971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ObjCInterfaceType *getInterfaceType() const { 4198c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getBaseType()->getAs<ObjCInterfaceType>(); 419914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4200e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4201e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getInterfaceDecl - If this pointer points to an Objective @interface 4202e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type, gets the declaration for that interface. 4203e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// 4204e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \return null if the base type for this pointer is 'id' or 'Class' 420514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCInterfaceDecl *getInterfaceDecl() const { 4206e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall return getObjectType()->getInterface(); 420714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4208e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4209e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCIdType - True if this is equivalent to the 'id' type, i.e. if 4210e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// its object type is the primitive 'id' type with no protocols. 421114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCIdType() const { 4212c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCUnqualifiedId(); 421314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4214e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4215e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCClassType - True if this is equivalent to the 'Class' type, 4216e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// i.e. if its object tive is the primitive 'Class' type with no protocols. 421714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff bool isObjCClassType() const { 4218c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCUnqualifiedClass(); 4219de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42208d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 4221e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCQualifiedIdType - True if this is equivalent to 'id<P>' for some 4222e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// non-empty set of protocols. 42231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isObjCQualifiedIdType() const { 4224c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCQualifiedId(); 4225de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 4226e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4227e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// isObjCQualifiedClassType - True if this is equivalent to 'Class<P>' for 4228e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// some non-empty set of protocols. 4229470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff bool isObjCQualifiedClassType() const { 4230c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->isObjCQualifiedClass(); 423114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4232e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall 4233e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// An iterator over the qualifiers on the object type. Provided 4234e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// for convenience. This will always iterate over the full set of 4235e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// protocols on a type, not just those provided directly. 4236c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall typedef ObjCObjectType::qual_iterator qual_iterator; 423714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 423871842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek qual_iterator qual_begin() const { 4239c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->qual_begin(); 424071842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek } 4241c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall qual_iterator qual_end() const { 4242c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->qual_end(); 424371842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek } 4244c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool qual_empty() const { return getObjectType()->qual_empty(); } 424514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4246e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// getNumProtocols - Return the number of qualifying protocols on 4247e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// the object type. 4248c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned getNumProtocols() const { 4249c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getNumProtocols(); 4250c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 425114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4252e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// \brief Retrieve a qualifying protocol by index on the object 4253e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall /// type. 425473dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor ObjCProtocolDecl *getProtocol(unsigned I) const { 4255c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getObjectType()->getProtocol(I); 425673dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor } 425773dc30b71e218ba2b776b10d07dc2aff09cb2c47Douglas Gregor 4258bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall bool isSugared() const { return false; } 4259bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall QualType desugar() const { return QualType(this, 0); } 4260bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall 4261e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall void Profile(llvm::FoldingSetNodeID &ID) { 4262e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall Profile(ID, getPointeeType()); 4263e175a6f6ede0ae31165a18ac8bf4e8d2681b39f8John McCall } 4264c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall static void Profile(llvm::FoldingSetNodeID &ID, QualType T) { 4265c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ID.AddPointer(T.getAsOpaquePtr()); 4266c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 42671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Type *T) { 42681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getTypeClass() == ObjCObjectPointer; 426914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 427014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff static bool classof(const ObjCObjectPointerType *) { return true; } 427114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff}; 42721bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 42730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// A qualifier set is used to build a set of qualifiers. 42740953e767ff7817f97b3ab20896b229891eeff45bJohn McCallclass QualifierCollector : public Qualifiers { 42750953e767ff7817f97b3ab20896b229891eeff45bJohn McCallpublic: 427649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall QualifierCollector(Qualifiers Qs = Qualifiers()) : Qualifiers(Qs) {} 42770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Collect any qualifiers on the given type and return an 42793b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// unqualified type. The qualifiers are assumed to be consistent 42803b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall /// with those already in the type. 42813b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const Type *strip(QualType type) { 42823b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall addFastQualifiers(type.getLocalFastQualifiers()); 42833b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!type.hasLocalNonFastQualifiers()) 42843b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return type.getTypePtrUnsafe(); 42853b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 42863b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ExtQuals *extQuals = type.getExtQualsUnsafe(); 42873b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall addConsistentQualifiers(extQuals->getQualifiers()); 42883b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return extQuals->getBaseType(); 42890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 42900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Apply the collected qualifiers to the given type. 42924ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad QualType apply(const ASTContext &Context, QualType QT) const; 42930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall /// Apply the collected qualifiers to the given type. 42954ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad QualType apply(const ASTContext &Context, const Type* T) const; 42960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall}; 42970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 4299611c1fff195d32df97706e0920c92468b2509900Chris Lattner// Inline function definitions. 43005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 43013b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const Type *QualType::getTypePtr() const { 43023b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getCommonPtr()->BaseType; 43033b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43043b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43053b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const Type *QualType::getTypePtrOrNull() const { 43063b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return (isNull() ? 0 : getCommonPtr()->BaseType); 43073b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43083b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43093b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline SplitQualType QualType::split() const { 43103b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!hasLocalNonFastQualifiers()) 43113b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return SplitQualType(getTypePtrUnsafe(), 43123b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers::fromFastMask(getLocalFastQualifiers())); 43133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43143b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall const ExtQuals *eq = getExtQualsUnsafe(); 43153b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers qs = eq->getQualifiers(); 43163b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall qs.addFastQualifiers(getLocalFastQualifiers()); 43173b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return SplitQualType(eq->getBaseType(), qs); 43183b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43193b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43203b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline Qualifiers QualType::getLocalQualifiers() const { 43213b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers Quals; 43223b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (hasLocalNonFastQualifiers()) 43233b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals = getExtQualsUnsafe()->getQualifiers(); 43243b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Quals.addFastQualifiers(getLocalFastQualifiers()); 43253b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return Quals; 43263b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43273b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43283b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline Qualifiers QualType::getQualifiers() const { 43293b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall Qualifiers quals = getCommonPtr()->CanonicalType.getLocalQualifiers(); 43303b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall quals.addFastQualifiers(getLocalFastQualifiers()); 43313b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return quals; 43323b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43333b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43343b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline unsigned QualType::getCVRQualifiers() const { 43353b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall unsigned cvr = getCommonPtr()->CanonicalType.getLocalCVRQualifiers(); 43363b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall cvr |= getLocalCVRQualifiers(); 43373b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return cvr; 43383b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43393b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43403b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline QualType QualType::getCanonicalType() const { 43413b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall QualType canon = getCommonPtr()->CanonicalType; 43423b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return canon.withFastQualifiers(getLocalFastQualifiers()); 43433b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 43443b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 4345467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCallinline bool QualType::isCanonical() const { 43463b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getTypePtr()->isCanonicalUnqualified(); 4347467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall} 4348467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall 434954e14c4db764c0636160d26c5bbf491637c83a76John McCallinline bool QualType::isCanonicalAsParam() const { 43503b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!isCanonical()) return false; 4351a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (hasLocalQualifiers()) return false; 4352745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian 435354e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *T = getTypePtr(); 43543b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (T->isVariablyModifiedType() && T->hasSizedVLAType()) 43553b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return false; 43563b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 43573b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return !isa<FunctionType>(T) && !isa<ArrayType>(T); 435854e14c4db764c0636160d26c5bbf491637c83a76John McCall} 435954e14c4db764c0636160d26c5bbf491637c83a76John McCall 4360fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isConstQualified() const { 4361fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalConstQualified() || 43623b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalConstQualified(); 4363fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4364fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4365fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isRestrictQualified() const { 4366fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalRestrictQualified() || 43673b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalRestrictQualified(); 4368fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4369fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4370fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4371fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::isVolatileQualified() const { 4372fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return isLocalVolatileQualified() || 43733b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.isLocalVolatileQualified(); 4374fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4375fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 4376fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregorinline bool QualType::hasQualifiers() const { 4377fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor return hasLocalQualifiers() || 43783b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall getCommonPtr()->CanonicalType.hasLocalQualifiers(); 4379fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 438062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 438162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline QualType QualType::getUnqualifiedType() const { 438262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall if (!getTypePtr()->getCanonicalTypeInternal().hasLocalQualifiers()) 438362c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return QualType(getTypePtr(), 0); 438462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 438562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return QualType(getSplitUnqualifiedTypeImpl(*this).first, 0); 438662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall} 438762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 438862c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline SplitQualType QualType::getSplitUnqualifiedType() const { 438962c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall if (!getTypePtr()->getCanonicalTypeInternal().hasLocalQualifiers()) 439062c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return split(); 439162c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall 439262c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return getSplitUnqualifiedTypeImpl(*this); 4393fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor} 4394fa1a06e80706846fa15e0bd44671bdc3dfc53d84Douglas Gregor 439549f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalConst() { 439649f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Const); 43970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 43980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 439949f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalRestrict() { 440049f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Restrict); 44010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 44020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 440349f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalVolatile() { 440449f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Qualifiers::Volatile); 44050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 44060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 440749f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCallinline void QualType::removeLocalCVRQualifiers(unsigned Mask) { 44086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall assert(!(Mask & ~Qualifiers::CVRMask) && "mask has non-CVR bits"); 4409c3c0af36bac3d71f61dd758585ab307892545de4Douglas Gregor assert((int)Qualifiers::CVRMask == (int)Qualifiers::FastMask); 44100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Fast path: we don't need to touch the slow qualifiers. 441249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall removeLocalFastQualifiers(Mask); 4413ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 4414ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 4415ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb/// getAddressSpace - Return the address space of this type. 4416ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lambinline unsigned QualType::getAddressSpace() const { 44173b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getQualifiers().getAddressSpace(); 4418ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 4419611c1fff195d32df97706e0920c92468b2509900Chris Lattner 4420d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// getObjCGCAttr - Return the gc attribute of this type. 44210953e767ff7817f97b3ab20896b229891eeff45bJohn McCallinline Qualifiers::GC QualType::getObjCGCAttr() const { 44223b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return getQualifiers().getObjCGCAttr(); 4423d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 44242455636163fdd18581d7fdae816433f886d88213Mike Stump 4425264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolainline FunctionType::ExtInfo getFunctionExtInfo(const Type &t) { 4426264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola if (const PointerType *PT = t.getAs<PointerType>()) { 4427183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const FunctionType *FT = PT->getPointeeType()->getAs<FunctionType>()) 4428264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FT->getExtInfo(); 4429264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola } else if (const FunctionType *FT = t.getAs<FunctionType>()) 4430264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FT->getExtInfo(); 44312455636163fdd18581d7fdae816433f886d88213Mike Stump 4432264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return FunctionType::ExtInfo(); 44332455636163fdd18581d7fdae816433f886d88213Mike Stump} 44341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4435264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolainline FunctionType::ExtInfo getFunctionExtInfo(QualType t) { 4436264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getFunctionExtInfo(*t); 4437ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 4438ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 4439e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// isMoreQualifiedThan - Determine whether this type is more 4440e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// qualified than the Other type. For example, "const volatile int" 4441e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// is more qualified than "const int", "volatile int", and 4442e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// "int". However, it is not more qualified than "const volatile 4443e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int". 444462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline bool QualType::isMoreQualifiedThan(QualType other) const { 444562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall Qualifiers myQuals = getQualifiers(); 444662c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall Qualifiers otherQuals = other.getQualifiers(); 444762c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return (myQuals != otherQuals && myQuals.compatiblyIncludes(otherQuals)); 4448e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4449e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 4450e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// isAtLeastAsQualifiedAs - Determine whether this type is at last 4451e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// as qualified as the Other type. For example, "const volatile 4452e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int" is at least as qualified as "const int", "volatile int", 4453e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// "int", and "const volatile int". 445462c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCallinline bool QualType::isAtLeastAsQualifiedAs(QualType other) const { 445562c28c831bbf207cc36e683e7c321fc33bf8928cJohn McCall return getQualifiers().compatiblyIncludes(other.getQualifiers()); 4456e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4457e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 4458e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// getNonReferenceType - If Type is a reference type (e.g., const 4459e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int&), returns the type that the reference refers to ("const 4460e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// int"). Otherwise, returns the type itself. This routine is used 4461e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// throughout Sema to implement C++ 5p6: 4462e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// 4463e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// If an expression initially has the type "reference to T" (8.3.2, 4464e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// 8.5.3), the type is adjusted to "T" prior to any further 4465e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// analysis, the expression designates the object or function 4466e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor/// denoted by the reference, and the expression is an lvalue. 4467e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregorinline QualType QualType::getNonReferenceType() const { 44686217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RefType = (*this)->getAs<ReferenceType>()) 4469e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor return RefType->getPointeeType(); 4470e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor else 4471e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor return *this; 4472e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor} 4473e0a5d5fe8eab573f7764bf6d2ddb02bee8dceaf9Douglas Gregor 4474aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \brief Tests whether the type is categorized as a fundamental type. 4475aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// 4476aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \returns True for types specified in C++0x [basic.fundamental]. 4477aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruthinline bool Type::isFundamentalType() const { 4478aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth return isVoidType() || 4479aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // FIXME: It's really annoying that we don't have an 4480aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // 'isArithmeticType()' which agrees with the standard definition. 4481aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth (isArithmeticType() && !isEnumeralType()); 4482aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth} 4483aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth 4484aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \brief Tests whether the type is categorized as a compound type. 4485aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// 4486aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth/// \returns True for types specified in C++0x [basic.compound]. 4487aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruthinline bool Type::isCompoundType() const { 4488aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // C++0x [basic.compound]p1: 4489aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // Compound types can be constructed in the following ways: 4490aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- arrays of objects of a given type [...]; 4491aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth return isArrayType() || 4492aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- functions, which have parameters of given types [...]; 4493aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isFunctionType() || 4494aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- pointers to void or objects or functions [...]; 4495aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isPointerType() || 4496aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- references to objects or functions of a given type. [...] 4497aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isReferenceType() || 4498aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- classes containing a sequence of objects of various types, [...]; 4499aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isRecordType() || 4500aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- unions, which ar classes capable of containing objects of different types at different times; 4501aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isUnionType() || 4502aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- enumerations, which comprise a set of named constant values. [...]; 4503aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isEnumeralType() || 4504aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth // -- pointers to non-static class members, [...]. 4505aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth isMemberPointerType(); 4506aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth} 4507aaf147be3cc7403d8f7889d363421bb291ef23f2Chandler Carruth 4508611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isFunctionType() const { 4509a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<FunctionType>(CanonicalType); 4510611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4511611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isPointerType() const { 4512a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<PointerType>(CanonicalType); 4513611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 451458f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroffinline bool Type::isAnyPointerType() const { 451558f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff return isPointerType() || isObjCObjectPointerType(); 451658f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff} 45175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroffinline bool Type::isBlockPointerType() const { 4518a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<BlockPointerType>(CanonicalType); 45195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 4520bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattnerinline bool Type::isReferenceType() const { 4521a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ReferenceType>(CanonicalType); 4522bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner} 45237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlinline bool Type::isLValueReferenceType() const { 4524a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<LValueReferenceType>(CanonicalType); 45257c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 45267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redlinline bool Type::isRValueReferenceType() const { 4527a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<RValueReferenceType>(CanonicalType); 45287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 4529498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenekinline bool Type::isFunctionPointerType() const { 4530d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const PointerType *T = getAs<PointerType>()) 4531498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek return T->getPointeeType()->isFunctionType(); 4532498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek else 4533498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek return false; 4534498b0d1aba38f5ec64d566d1dd9e6be237ecc50fTed Kremenek} 4535f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlinline bool Type::isMemberPointerType() const { 4536a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<MemberPointerType>(CanonicalType); 4537f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 4538f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redlinline bool Type::isMemberFunctionPointerType() const { 45396217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const MemberPointerType* T = getAs<MemberPointerType>()) 45400bab0cdab751248ca389a5592bcb70eac5d39260John McCall return T->isMemberFunctionPointer(); 4541f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else 4542f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return false; 4543f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 4544db68e28c05a67735211e688009890cf834c22e75Douglas Gregorinline bool Type::isMemberDataPointerType() const { 4545db68e28c05a67735211e688009890cf834c22e75Douglas Gregor if (const MemberPointerType* T = getAs<MemberPointerType>()) 45460bab0cdab751248ca389a5592bcb70eac5d39260John McCall return T->isMemberDataPointer(); 4547db68e28c05a67735211e688009890cf834c22e75Douglas Gregor else 4548db68e28c05a67735211e688009890cf834c22e75Douglas Gregor return false; 4549db68e28c05a67735211e688009890cf834c22e75Douglas Gregor} 4550611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isArrayType() const { 4551a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ArrayType>(CanonicalType); 4552611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4553c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isConstantArrayType() const { 4554a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ConstantArrayType>(CanonicalType); 4555c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4556c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isIncompleteArrayType() const { 4557a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<IncompleteArrayType>(CanonicalType); 4558c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4559c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerinline bool Type::isVariableArrayType() const { 4560a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<VariableArrayType>(CanonicalType); 4561c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 4562898574e7496ba8fd76290079d3a9d06954992734Douglas Gregorinline bool Type::isDependentSizedArrayType() const { 4563a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<DependentSizedArrayType>(CanonicalType); 4564898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 45653ff83dd534ccc828203670ce3f5125a4eb4199f8John McCallinline bool Type::isBuiltinType() const { 45663ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall return isa<BuiltinType>(CanonicalType); 45673ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall} 4568611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isRecordType() const { 4569a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<RecordType>(CanonicalType); 4570611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 45713ff83dd534ccc828203670ce3f5125a4eb4199f8John McCallinline bool Type::isEnumeralType() const { 45723ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall return isa<EnumType>(CanonicalType); 45733ff83dd534ccc828203670ce3f5125a4eb4199f8John McCall} 4574f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattnerinline bool Type::isAnyComplexType() const { 4575a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ComplexType>(CanonicalType); 4576f23d364084d1aabea688222780d6fc1dd8c7f78cChris Lattner} 4577611c1fff195d32df97706e0920c92468b2509900Chris Lattnerinline bool Type::isVectorType() const { 4578a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<VectorType>(CanonicalType); 4579611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4580213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begemaninline bool Type::isExtVectorType() const { 4581a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ExtVectorType>(CanonicalType); 4582611c1fff195d32df97706e0920c92468b2509900Chris Lattner} 4583d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroffinline bool Type::isObjCObjectPointerType() const { 4584a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<ObjCObjectPointerType>(CanonicalType); 4585d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 4586c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallinline bool Type::isObjCObjectType() const { 4587c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return isa<ObjCObjectType>(CanonicalType); 4588368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner} 4589569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregorinline bool Type::isObjCObjectOrInterfaceType() const { 4590569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor return isa<ObjCInterfaceType>(CanonicalType) || 4591569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor isa<ObjCObjectType>(CanonicalType); 4592569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor} 4593569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor 4594a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekinline bool Type::isObjCQualifiedIdType() const { 4595183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 4596d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return OPT->isObjCQualifiedIdType(); 4597d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return false; 4598d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian} 4599470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroffinline bool Type::isObjCQualifiedClassType() const { 4600183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 4601470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff return OPT->isObjCQualifiedClassType(); 4602470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff return false; 4603470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff} 460414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffinline bool Type::isObjCIdType() const { 4605183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 460614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return OPT->isObjCIdType(); 460714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return false; 460814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 460914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffinline bool Type::isObjCClassType() const { 4610183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = getAs<ObjCObjectPointerType>()) 461114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return OPT->isObjCClassType(); 461214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return false; 461314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 461413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanianinline bool Type::isObjCSelType() const { 46158d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (const PointerType *OPT = getAs<PointerType>()) 46168d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return OPT->getPointeeType()->isSpecificBuiltinType(BuiltinType::ObjCSel); 461713dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian return false; 461813dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian} 4619de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroffinline bool Type::isObjCBuiltinType() const { 462013dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian return isObjCIdType() || isObjCClassType() || isObjCSelType(); 4621de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff} 462272c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregorinline bool Type::isTemplateTypeParmType() const { 4623a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return isa<TemplateTypeParmType>(CanonicalType); 462472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 462572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 4626e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbarinline bool Type::isSpecificBuiltinType(unsigned K) const { 4627183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = getAs<BuiltinType>()) 4628e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar if (BT->getKind() == (BuiltinType::Kind) K) 4629e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return true; 4630e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return false; 4631e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar} 4632e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar 46332a984cad5ac3fdceeff2bd99daa7b90979313475John McCallinline bool Type::isPlaceholderType() const { 46342a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (const BuiltinType *BT = getAs<BuiltinType>()) 46352a984cad5ac3fdceeff2bd99daa7b90979313475John McCall return BT->isPlaceholderType(); 46362a984cad5ac3fdceeff2bd99daa7b90979313475John McCall return false; 46372a984cad5ac3fdceeff2bd99daa7b90979313475John McCall} 46382a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 4639864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCallinline bool Type::isSpecificPlaceholderType(unsigned K) const { 4640864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(this)) 4641864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return (BT->getKind() == (BuiltinType::Kind) K); 4642864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall return false; 4643864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall} 4644864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 4645063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor/// \brief Determines whether this is a type for which one can define 4646063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor/// an overloaded operator. 4647063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregorinline bool Type::isOverloadableType() const { 4648063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor return isDependentType() || isRecordType() || isEnumeralType(); 4649904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor} 4650904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 46518958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbarinline bool Type::hasPointerRepresentation() const { 46528958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar return (isPointerType() || isReferenceType() || isBlockPointerType() || 4653c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall isObjCObjectPointerType() || isNullPtrType()); 46548958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar} 46558958891f5fa1e593c4519a36b3df427ee019d70bDaniel Dunbar 4656820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanianinline bool Type::hasObjCPointerRepresentation() const { 4657c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return isObjCObjectPointerType(); 4658820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian} 4659820e0203079afd64b0de422832f9e0b31a27c0c8Fariborz Jahanian 4660d0370f59e79702ac908c81bf556519f91e9ca297John McCallinline const Type *Type::getBaseElementTypeUnsafe() const { 4661d0370f59e79702ac908c81bf556519f91e9ca297John McCall const Type *type = this; 4662d0370f59e79702ac908c81bf556519f91e9ca297John McCall while (const ArrayType *arrayType = type->getAsArrayTypeUnsafe()) 4663d0370f59e79702ac908c81bf556519f91e9ca297John McCall type = arrayType->getElementType().getTypePtr(); 4664d0370f59e79702ac908c81bf556519f91e9ca297John McCall return type; 4665d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4666d0370f59e79702ac908c81bf556519f91e9ca297John McCall 466722caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner/// Insertion operator for diagnostics. This allows sending QualType's into a 466822caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner/// diagnostic with <<. 466922caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattnerinline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, 467022caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner QualType T) { 467122caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner DB.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()), 467222caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner Diagnostic::ak_qualtype); 467322caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner return DB; 467422caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner} 46751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 467647c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth/// Insertion operator for partial diagnostics. This allows sending QualType's 467747c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth/// into a diagnostic with <<. 467847c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruthinline const PartialDiagnostic &operator<<(const PartialDiagnostic &PD, 467947c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth QualType T) { 468047c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth PD.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()), 468147c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth Diagnostic::ak_qualtype); 468247c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth return PD; 468347c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth} 468447c24b1d94f446c43e3a64732867eabed7d9c961Chandler Carruth 468589c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor// Helper class template that is used by Type::getAs to ensure that one does 468689c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor// not try to look through a qualified type to get to an array type. 468789c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregortemplate<typename T, 468889c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor bool isArrayType = (llvm::is_same<T, ArrayType>::value || 468989c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor llvm::is_base_of<ArrayType, T>::value)> 469089c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregorstruct ArrayType_cannot_be_used_with_getAs { }; 469189c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 469289c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregortemplate<typename T> 469389c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregorstruct ArrayType_cannot_be_used_with_getAs<T, true>; 469489c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 46951a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek/// Member-template getAs<specific type>'. 46961a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenektemplate <typename T> const T *Type::getAs() const { 469789c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor ArrayType_cannot_be_used_with_getAs<T> at; 469889c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor (void)at; 469989c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor 47001a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // If this is directly a T type, return it. 47011a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek if (const T *Ty = dyn_cast<T>(this)) 47021a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek return Ty; 47031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47041a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // If the canonical form of this type isn't the right kind, reject it. 47050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<T>(CanonicalType)) 47061a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek return 0; 47071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this is a typedef for the type, strip the typedef off without 47091a1a6e2bd4c5aefd7fd643cf25915f9623a02e59Ted Kremenek // losing all typedef information. 4710bf1cc05907ceb2081e8158b26f3d3f48b31caad3John McCall return cast<T>(getUnqualifiedDesugaredType()); 47111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} 471222caddc91d2f6186739c6b20ec58ed38cd68e595Chris Lattner 47133b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCallinline const ArrayType *Type::getAsArrayTypeUnsafe() const { 47143b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If this is directly an array type, return it. 47153b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (const ArrayType *arr = dyn_cast<ArrayType>(this)) 47163b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return arr; 47173b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 47183b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If the canonical form of this type isn't the right kind, reject it. 47193b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall if (!isa<ArrayType>(CanonicalType)) 47203b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return 0; 47213b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 47223b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // If this is a typedef for the type, strip the typedef off without 47233b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall // losing all typedef information. 47243b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall return cast<ArrayType>(getUnqualifiedDesugaredType()); 47253b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall} 47263b6575108a5b6d8b92ac3a9a7794bf6c3a210907John McCall 4727d0370f59e79702ac908c81bf556519f91e9ca297John McCalltemplate <typename T> const T *Type::castAs() const { 4728d0370f59e79702ac908c81bf556519f91e9ca297John McCall ArrayType_cannot_be_used_with_getAs<T> at; 4729d0370f59e79702ac908c81bf556519f91e9ca297John McCall (void) at; 4730d0370f59e79702ac908c81bf556519f91e9ca297John McCall 4731d0370f59e79702ac908c81bf556519f91e9ca297John McCall assert(isa<T>(CanonicalType)); 4732d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const T *ty = dyn_cast<T>(this)) return ty; 4733d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<T>(getUnqualifiedDesugaredType()); 4734d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4735d0370f59e79702ac908c81bf556519f91e9ca297John McCall 4736d0370f59e79702ac908c81bf556519f91e9ca297John McCallinline const ArrayType *Type::castAsArrayTypeUnsafe() const { 4737d0370f59e79702ac908c81bf556519f91e9ca297John McCall assert(isa<ArrayType>(CanonicalType)); 4738d0370f59e79702ac908c81bf556519f91e9ca297John McCall if (const ArrayType *arr = dyn_cast<ArrayType>(this)) return arr; 4739d0370f59e79702ac908c81bf556519f91e9ca297John McCall return cast<ArrayType>(getUnqualifiedDesugaredType()); 4740d0370f59e79702ac908c81bf556519f91e9ca297John McCall} 4741d0370f59e79702ac908c81bf556519f91e9ca297John McCall 47425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 47435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4745