SemaType.cpp revision d1a32c328bce903fb1b17fc8147b646be818298e
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- SemaType.cpp - Semantic Analysis for Types -----------------------===// 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 implements type-related semantic analysis. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 15658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie#include "clang/AST/ASTConsumer.h" 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor#include "clang/AST/ASTMutationListener.h" 18a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 19980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 202943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/Expr.h" 224adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2351bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Basic/OpenCL.h" 2591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 26d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis#include "clang/Basic/TargetInfo.h" 272792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall#include "clang/Lex/Preprocessor.h" 28bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman#include "clang/Parse/ParseDiagnostic.h" 2919510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 30f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Sema/DelayedDiagnostic.h" 31d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor#include "clang/Sema/Lookup.h" 3255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/ScopeInfo.h" 3355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Template.h" 344994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 358c952cd40ccec9d720931f27e7d722fed207d536Richard Smith#include "llvm/ADT/SmallString.h" 3687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 37ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman#include "TypeLocBuilder.h" 38ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 41fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballmanenum TypeDiagSelector { 42fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman TDS_Function, 43fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman TDS_Pointer, 44fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman TDS_ObjCObjOrBlock 45fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman}; 46fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman 475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 4891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier/// return type because this is a omitted return type on a block literal. 498ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 518ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 525db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 5391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 545db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 55a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 5691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 575db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 585db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 59a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 6091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 615db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 625db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 642792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// diagnoseBadTypeAttribute - Diagnoses a type attribute which 652792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// doesn't apply to the given type. 662792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCallstatic void diagnoseBadTypeAttribute(Sema &S, const AttributeList &attr, 672792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall QualType type) { 68fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman TypeDiagSelector WhichType; 69fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman bool useExpansionLoc = true; 702792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall switch (attr.getKind()) { 71fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman case AttributeList::AT_ObjCGC: WhichType = TDS_Pointer; break; 72fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman case AttributeList::AT_ObjCOwnership: WhichType = TDS_ObjCObjOrBlock; break; 732792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall default: 742792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // Assume everything else was a function attribute. 75fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman WhichType = TDS_Function; 76fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman useExpansionLoc = false; 772792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 782792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 792792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 802792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall SourceLocation loc = attr.getLoc(); 815f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef name = attr.getName()->getName(); 822792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 832792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // The GC attributes are usually written with macros; special-case them. 84624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierInfo *II = attr.isArgIdent(0) ? attr.getArgAsIdent(0)->Ident : 0; 85624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (useExpansionLoc && loc.isMacroID() && II) { 86624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (II->isStr("strong")) { 87834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; 88624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman } else if (II->isStr("weak")) { 89834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__weak")) name = "__weak"; 902792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 912792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 922792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 93fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman S.Diag(loc, diag::warn_type_attribute_wrong_type) << name << WhichType 94fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman << type; 952792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall} 962792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 97711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 1008e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCGC: \ 1018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCOwnership 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 1058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoReturn: \ 1068e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: \ 1078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: \ 1088e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: \ 1098e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: \ 1108e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: \ 111e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_MSABI: \ 112e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_SysVABI: \ 1138e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Regparm: \ 114263366f9241366f29ba65b703120f302490c39ffDerek Schuff case AttributeList::AT_Pcs: \ 11538980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei case AttributeList::AT_PnaclCall: \ 116aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_IntelOclBicc 117aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 118aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman// Microsoft-specific type qualifiers. 119aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman#define MS_TYPE_ATTRS_CASELIST \ 120aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr32: \ 121aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr64: \ 122aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_SPtr: \ 123aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_UPtr 124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 125711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 139711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1427ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall /// Whether we saved the attributes in the decl spec. 1437ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall bool hasSavedAttrs; 1447ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 1465f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> savedAttrs; 147711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 1505f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> ignoredTypeAttrs; 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 1567ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall trivial(true), hasSavedAttrs(false) {} 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 166b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall bool isProcessingDeclSpec() const { 167b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return chunkIndex == declarator.getNumTypeObjects(); 168b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 169b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 177711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 180b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (isProcessingDeclSpec()) 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 1887ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (hasSavedAttrs) return; 189711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 190711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 192711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 1957ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall hasSavedAttrs = true; 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 205711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 206711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 2075f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<AttributeList*>::const_iterator 208711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 2092792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall i != e; ++i) 2102792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(getSema(), **i, type); 211711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 212711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 213711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 222711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 223711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 224711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 2257ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall assert(hasSavedAttrs); 2267ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 2277ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (savedAttrs.empty()) { 2287ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall getMutableDeclSpec().getAttributes().set(0); 2297ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall return; 2307ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 2317ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 232711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 233711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 234711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 235711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 24904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 250711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 251711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 266711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 269f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith/// The location of a type attribute. 270f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smithenum TypeAttrLocation { 271f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is in the decl-specifier-seq. 272f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclSpec, 273f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is part of a DeclaratorChunk. 274f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclChunk, 275f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is immediately after the declaration's name. 276f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclName 277f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith}; 278f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith 279711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 280f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith QualType &type, TypeAttrLocation TAL, 281711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 282711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 283711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 285711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 286711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 287aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballmanstatic bool handleMSPointerTypeQualifierAttr(TypeProcessingState &state, 288aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList &attr, 289aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType &type); 290aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 291711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 294b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 295f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, QualType &type); 296f85e193739c953358c865005855253af4f68a497John McCall 297711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 2998e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_ObjCGC) 300f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 3018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt assert(attr.getKind() == AttributeList::AT_ObjCOwnership); 302b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return handleObjCOwnershipTypeAttr(state, attr, type); 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 305b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// Given the index of a declarator chunk, check whether that chunk 306b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// directly specifies the return type of a function and, if so, find 307b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// an appropriate place for it. 308b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// 309b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// \param i - a notional index which the search will start 310b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// immediately inside 311b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCallstatic DeclaratorChunk *maybeMovePastReturnType(Declarator &declarator, 312b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall unsigned i) { 313b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall assert(i <= declarator.getNumTypeObjects()); 314b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 315b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk *result = 0; 316b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 317b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // First, look inwards past parens for a function declarator. 318b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall for (; i != 0; --i) { 319b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk &fnChunk = declarator.getTypeObject(i-1); 320b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall switch (fnChunk.Kind) { 321b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Paren: 322b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue; 323b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 324b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we find anything except a function, bail out. 325b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Pointer: 326b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: 327b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Array: 328b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Reference: 329b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::MemberPointer: 330b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 331b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 332b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we do find a function declarator, scan inwards from that, 333b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // looking for a block-pointer declarator. 334b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 335b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall for (--i; i != 0; --i) { 336b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk &blockChunk = declarator.getTypeObject(i-1); 337b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall switch (blockChunk.Kind) { 338b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Paren: 339b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Pointer: 340b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Array: 341b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 342b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Reference: 343b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::MemberPointer: 344b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue; 345b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: 346b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall result = &blockChunk; 347b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall goto continue_outer; 348b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 349b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall llvm_unreachable("bad declarator chunk kind"); 350b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 351b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 352b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we run out of declarators doing that, we're done. 353b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 354b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 355b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall llvm_unreachable("bad declarator chunk kind"); 356b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 357b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Okay, reconsider from our new point. 358b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue_outer: ; 359b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 360b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 361b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Ran out of chunks, bail out. 362b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 363b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall} 364b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 365711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 366711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 367711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 368711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 369711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 370711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 374b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 375b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Move it to the outermost normal or block pointer declarator. 376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 380b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: { 381b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // But don't move an ARC ownership attribute to the return type 382b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // of a block. 383b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk *destChunk = 0; 384b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec() && 385b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall attr.getKind() == AttributeList::AT_ObjCOwnership) 386b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall destChunk = maybeMovePastReturnType(declarator, i - 1); 387b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (!destChunk) destChunk = &chunk; 388b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 390b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall destChunk->getAttrListRef()); 391711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 392b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 398b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // We may be starting at the return type of a block. 399b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 400b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec() && 401b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall attr.getKind() == AttributeList::AT_ObjCOwnership) { 402b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (DeclaratorChunk *dest = maybeMovePastReturnType(declarator, i)) { 403b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 404b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall dest->getAttrListRef()); 405b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return; 406b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 407b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 408b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall goto error; 409b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 4172792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 4182792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 420711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 423711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 424711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 437711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 439ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 4577ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { 4587ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // Splice the attribute into the decl spec. Prevents the 4597ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // attribute from being applied multiple times and gives 4607ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // the source-location-filler something to work with. 4617ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall state.saveDeclSpecAttrs(); 4627ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 4637ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall declarator.getMutableDeclSpec().getAttributes().getListRef()); 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 4657ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 50991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5102792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5325b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return handleFunctionTypeAttr(state, attr, declSpecType); 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 537711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 538711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 539711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 540711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5435c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // C++11 attributes before the decl specifiers actually appertain to 5445c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // the declarators. Move them straight there. We don't support the 5455c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // 'put them wherever you like' semantics we allow for GNU attributes. 5465c52166525f8714c3e3a979b156ec23426947fd3Richard Smith if (attr.isCXX11Attribute()) { 5475c52166525f8714c3e3a979b156ec23426947fd3Richard Smith moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 5485c52166525f8714c3e3a979b156ec23426947fd3Richard Smith state.getDeclarator().getAttrListRef()); 5495c52166525f8714c3e3a979b156ec23426947fd3Richard Smith return; 5505c52166525f8714c3e3a979b156ec23426947fd3Richard Smith } 5515c52166525f8714c3e3a979b156ec23426947fd3Richard Smith 552711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 554711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 555711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 557711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 558711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 563711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 564711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 565711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 566711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 572711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 573711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 574711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 575711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 576711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 578711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 581711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 582711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 583711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 585711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 586711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 587711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 589711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 590711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 591711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 592711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 593711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 594711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 595711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 596711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 597711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 598711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 599711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 600711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 6015c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // Do not distribute C++11 attributes. They have strict rules for what 6025c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // they appertain to. 6035c52166525f8714c3e3a979b156ec23426947fd3Richard Smith if (attr->isCXX11Attribute()) 6045c52166525f8714c3e3a979b156ec23426947fd3Richard Smith continue; 6055c52166525f8714c3e3a979b156ec23426947fd3Richard Smith 606711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 607711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 608711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 609711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 6118e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 6124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 613f85e193739c953358c865005855253af4f68a497John McCall break; 614f85e193739c953358c865005855253af4f68a497John McCall // fallthrough 615f85e193739c953358c865005855253af4f68a497John McCall 616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 617711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 618711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 619711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 620aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman MS_TYPE_ATTRS_CASELIST: 621aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // Microsoft type attributes cannot go after the declarator-id. 622aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman continue; 623aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 624711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 625711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 626711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 627711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 628711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 629711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 630711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 631711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 632711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 633711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 636711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 637711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 638711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 639711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 640711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 641711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 643711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 644da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 645da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 646da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 647da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 648da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 649da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 650711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 651711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 653da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 654da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 655da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 656da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 657711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 65996a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation loc = declarator.getLocStart(); 660711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 661711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 66259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 663711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 66459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*HasProto=*/true, 66559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*IsAmbiguous=*/false, 66659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*LParenLoc=*/NoLoc, 66759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ArgInfo=*/0, 66859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumArgs=*/0, 66959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*EllipsisLoc=*/NoLoc, 67059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RParenLoc=*/NoLoc, 67159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*TypeQuals=*/0, 67259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierIsLvalueRef=*/true, 67359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 67459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 67559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 67659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*MutableLoc=*/NoLoc, 67759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EST_None, 67859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ESpecLoc=*/NoLoc, 67959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Exceptions=*/0, 68059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ExceptionRanges=*/0, 68159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumExceptions=*/0, 68259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NoexceptExpr=*/0, 68359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara loc, loc, declarator)); 684711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 685711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 686711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 687711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 688711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 68904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 69004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 691930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 692930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 6931dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// \param state Specifies the declarator containing the declaration specifier 6941dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// to be converted, along with other associated processing state. 6955153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 6965153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 6978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 700711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 7018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 702711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 703711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 704711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 7055db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 70696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar DeclLoc = DS.getLocStart(); 70791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 708711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 7091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7105db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 71296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 71396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 71496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 717fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 719fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 723fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 725958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 72664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 72764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 72864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 72964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 730711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 731f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 73264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 73364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 73464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 73564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 736711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 737f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 73864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 73964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 74064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 741f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 742f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 743f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 744f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 745f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 746f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 747f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 748f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 749f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 750f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 751d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 75262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 753097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 754c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 75531ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*)PQ, 756c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 757c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 75862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 75962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 76091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 7615db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 7625db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 763f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // The declspec is always missing in a lambda expr context; it is either 764f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // specified with a trailing return type or inferred. 76541d0958281627882fbe2049fb887d741eabd3fe3Richard Smith if (S.getLangOpts().CPlusPlus1y && 76641d0958281627882fbe2049fb887d741eabd3fe3Richard Smith declarator.getContext() == Declarator::LambdaExprContext) { 76741d0958281627882fbe2049fb887d741eabd3fe3Richard Smith // In C++1y, a lambda's implicit return type is 'auto'. 76841d0958281627882fbe2049fb887d741eabd3fe3Richard Smith Result = Context.getAutoDeductType(); 76941d0958281627882fbe2049fb887d741eabd3fe3Richard Smith break; 77041d0958281627882fbe2049fb887d741eabd3fe3Richard Smith } else if (declarator.getContext() == Declarator::LambdaExprContext || 77141d0958281627882fbe2049fb887d741eabd3fe3Richard Smith isOmittedBlockReturnType(declarator)) { 772152b4e4652baedfceba1cd8115515629225e713fManuel Klimek Result = Context.DependentTy; 7735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 7745db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 776d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 777d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 778d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 779d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 780d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 781d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 782d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 7834e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ImplicitInt) { 78435d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 78535d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 7863f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 787711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 7883f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 78996a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar << FixItHint::CreateInsertion(DS.getLocStart(), "int"); 7903f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 7914310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 792d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 793d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 794d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 795d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 79658eb37036b47bbe7433f72d92a2cb60848507707Richard Smith if (S.getLangOpts().CPlusPlus) { 797711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 7983f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 800b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 801b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 802b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 803711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 804b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 805711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 8063f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 807b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 808d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 8091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 8113cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 814fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 815fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 816fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 817311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 818311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 81991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 820e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 821e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 822e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 823e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 82480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 825e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 826e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 827e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 828e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 829311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 833fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 834fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 835fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 836311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 837311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 83891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 839e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 840e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 841e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 842e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 84380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 844e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 845e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 846e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 847e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 848311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 851958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8523cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 8535a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case DeclSpec::TST_int128: 85484268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith if (!S.PP.getTargetInfo().hasInt128Type()) 85584268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith S.Diag(DS.getTypeSpecTypeLoc(), diag::err_int128_unsupported); 8565a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned) 8575a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.UnsignedInt128Ty; 8585a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith else 8595a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.Int128Ty; 8605a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 861aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 862fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 863958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 864958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 865fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 866958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 867fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 86839d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 8694e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 87039d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 87139d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 87239d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 873958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 874fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 878711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 8798f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 880711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8818f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 88299dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 8856666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_struct: 8866666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_interface: { 887b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 8886e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 8896e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 8906e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 891711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8926e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 8936e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 8946e24726524c2b51b31bb4b622aa678a46b024f42John McCall 895a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 8960daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 89791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 899a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 90091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 902a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 9032191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 9040daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 9050daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 9060daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 9070daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 908958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9101a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 914711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 91527940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 916711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 91727940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 91827940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 919c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 920c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 921c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 922c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 923c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 924c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 925c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 926c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 92731ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 928c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 929c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 930ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 931c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 93231ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 933c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 934c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 935c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 9364262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 937c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 93831ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 939c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 940c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 9413f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 942711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 9433f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 944711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9453f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 946c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 949958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 951958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 952e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 953711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 954958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 955730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 956730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 957711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 958d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 959fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 960958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 961d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 962b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 963d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 964d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 965711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 9664b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 9674b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 968711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9694b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 970958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 971d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 9726fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 973b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 9746fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 9756fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 976711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 977af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 978af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 979711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 980af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 9816fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 9826fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 983ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 984db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 985db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 986ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 987ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 988ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 989ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 990ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 991ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 992db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 99391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 994db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 995a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_auto: 996e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 997fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // If auto is mentioned in a lambda parameter context, convert it to a 998fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // template parameter type immediately, with the appropriate depth and 999fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // index, and update sema's state (LambdaScopeInfo) for the current lambda 1000fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // being analyzed (which tracks the invented type template parameter). 1001fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (declarator.getContext() == Declarator::LambdaExprParameterContext) { 1002fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali sema::LambdaScopeInfo *LSI = S.getCurLambda(); 1003fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali assert(LSI && "No LambdaScopeInfo on the stack!"); 1004fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali const unsigned TemplateParameterDepth = LSI->AutoTemplateParameterDepth; 1005fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali const unsigned AutoParameterPosition = LSI->AutoTemplateParams.size(); 1006fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali const bool IsParameterPack = declarator.hasEllipsis(); 1007fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 1008fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // Create a name for the invented template parameter type. 1009fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali std::string InventedTemplateParamName = "$auto-"; 1010fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali llvm::raw_string_ostream ss(InventedTemplateParamName); 1011fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali ss << TemplateParameterDepth; 1012fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali ss << "-" << AutoParameterPosition; 1013fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali ss.flush(); 1014fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 1015fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali IdentifierInfo& TemplateParamII = Context.Idents.get( 1016fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali InventedTemplateParamName.c_str()); 1017fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // Turns out we must create the TemplateTypeParmDecl here to 1018fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // retrieve the corresponding template parameter type. 1019fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali TemplateTypeParmDecl *CorrespondingTemplateParam = 1020fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali TemplateTypeParmDecl::Create(Context, 1021fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // Temporarily add to the TranslationUnit DeclContext. When the 1022fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // associated TemplateParameterList is attached to a template 1023fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // declaration (such as FunctionTemplateDecl), the DeclContext 1024fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // for each template parameter gets updated appropriately via 1025fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // a call to AdoptTemplateParameterList. 1026fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Context.getTranslationUnitDecl(), 1027fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali /*KeyLoc*/ SourceLocation(), 1028fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali /*NameLoc*/ declarator.getLocStart(), 1029fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali TemplateParameterDepth, 1030fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali AutoParameterPosition, // our template param index 1031fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali /* Identifier*/ &TemplateParamII, false, IsParameterPack); 1032fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali LSI->AutoTemplateParams.push_back(CorrespondingTemplateParam); 1033fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // Replace the 'auto' in the function parameter with this invented 1034fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // template type parameter. 1035fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Result = QualType(CorrespondingTemplateParam->getTypeForDecl(), 0); 1036fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali } else { 1037fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Result = Context.getAutoType(QualType(), /*decltype(auto)*/false, false); 1038fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali } 1039a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 1040a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 1041a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_decltype_auto: 1042fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Result = Context.getAutoType(QualType(), 1043fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali /*decltype(auto)*/true, 1044fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali /*IsDependent*/ false); 1045e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 10461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1047a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 1048a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 1049a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 1050a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 1051b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 1052b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 1053b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 1054b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 1055b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 1056b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 1057b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 1058b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 105991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 1060b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1061b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_t: 1062b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dTy; 1063b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1064b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1065b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_array_t: 1066b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dArrayTy; 1067b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1068b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1069b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_buffer_t: 1070b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dBufferTy; 1071b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1072b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1073b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_t: 1074b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dTy; 1075b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1076b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1077b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_array_t: 1078b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dArrayTy; 1079b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1080b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1081b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image3d_t: 1082b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage3dTy; 1083b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1084b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 108521f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei case DeclSpec::TST_sampler_t: 108621f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei Result = Context.OCLSamplerTy; 108721f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei break; 108821f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei 1089e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei case DeclSpec::TST_event_t: 1090e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei Result = Context.OCLEventTy; 1091e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei break; 1092e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei 1093809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 10945153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 1095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 10965153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1099958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 1100f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 11014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().Freestanding) 1102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 1103fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 110482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 110582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 110682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 1107e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 1108788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 1109e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 1110788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 1111e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 1112e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 1113f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111547423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 111647423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 1117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 11181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 1120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 1121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 1122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 1123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 1125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 1126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 1127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 1128f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, Result, TAL_DeclSpec, attrs); 11291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 113096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 113196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 113296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 113396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 113496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 113596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 113696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 11370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 11384cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getConstSpecLoc(), diag::warn_typecheck_function_qualifiers) 11394cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 11400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 11414cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getVolatileSpecLoc(), diag::warn_typecheck_function_qualifiers) 11424cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 11430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 11444cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert((TypeQuals & (DeclSpec::TQ_restrict | DeclSpec::TQ_atomic)) && 11454cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith "Has CVRA quals but not C, V, R, or A?"); 11464cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No diagnostic; we'll diagnose 'restrict' or '_Atomic' applied to a 11474cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // function type later, in BuildQualifiedType. 114896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 114996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1151f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 1152f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 1153f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 1154f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 1155f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 11561a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 11571a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 1158f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 11590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 11600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 11614cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeQuals &= ~DeclSpec::TQ_atomic; 11621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1164bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 6.5.3 constraints: "The same type qualifier shall not appear more 1165bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // than once in the same specifier-list or qualifier-list, either directly 1166bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // or via one or more typedefs." 116791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus 1168bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman && TypeQuals & Result.getCVRQualifiers()) { 1169bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()) { 117091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) 1171bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "const"; 1172bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1173bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 1174bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()) { 117591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) 1176bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "volatile"; 1177bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1178bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11794cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C90 doesn't have restrict nor _Atomic, so it doesn't force us to 11804cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // produce a warning in this case. 1181bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1182bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11834cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith QualType Qualified = S.BuildQualifiedType(Result, DeclLoc, TypeQuals, &DS); 11844cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 11854cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If adding qualifiers fails, just use the unqualified type. 11864cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (Qualified.isNull()) 11874cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith declarator.setInvalidType(true); 11884cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith else 11894cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Result = Qualified; 119096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1192f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 1193f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 1194f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 1195cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 1196cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 1197cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 11981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1199cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 1200cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1201cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 12022865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 120393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Qualifiers Qs, const DeclSpec *DS) { 12042865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 12052865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 12062865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 12072865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 12082865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 12092865474261a608c7873b87ba4af110d17907896dJohn McCall 121093d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isAnyPointerType() || T->isReferenceType() || 121193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith T->isMemberPointerType()) { 121293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith QualType EltTy; 121393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isObjCObjectPointerType()) 121493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T; 121593d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else if (const MemberPointerType *PTy = T->getAs<MemberPointerType>()) 121693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = PTy->getPointeeType(); 121793d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else 121893d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T->getPointeeType(); 121993d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith 122093d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // If we have a pointer or reference, the pointee must have an object 122193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // incomplete type. 122293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (!EltTy->isIncompleteOrObjectType()) { 12232865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 122493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith ProblemTy = EltTy; 122591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 122693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith } else if (!T->isDependentType()) { 122793d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith DiagID = diag::err_typecheck_invalid_restrict_not_pointer; 12282865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 12292865474261a608c7873b87ba4af110d17907896dJohn McCall } 12302865474261a608c7873b87ba4af110d17907896dJohn McCall 12312865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 123293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Diag(DS ? DS->getRestrictSpecLoc() : Loc, DiagID) << ProblemTy; 12332865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 12342865474261a608c7873b87ba4af110d17907896dJohn McCall } 12352865474261a608c7873b87ba4af110d17907896dJohn McCall } 12362865474261a608c7873b87ba4af110d17907896dJohn McCall 12372865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 12382865474261a608c7873b87ba4af110d17907896dJohn McCall} 12392865474261a608c7873b87ba4af110d17907896dJohn McCall 12404cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard SmithQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 12414cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVRA, const DeclSpec *DS) { 12424cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Convert from DeclSpec::TQ to Qualifiers::TQ by just dropping TQ_atomic. 12434cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVR = CVRA & ~DeclSpec::TQ_atomic; 12444cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 12454cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 12464cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If the same qualifier appears more than once in the same 12474cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, either directly or via one or more typedefs, 12484cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // the behavior is the same as if it appeared only once. 12494cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12504cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // It's not specified what happens when the _Atomic qualifier is applied to 12514cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // a type specified with the _Atomic specifier, but we assume that this 12524cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // should be treated as if the _Atomic qualifier appeared multiple times. 12534cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (CVRA & DeclSpec::TQ_atomic && !T->isAtomicType()) { 12544cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 12554cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If other qualifiers appear along with the _Atomic qualifier in a 12564cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, the resulting type is the so-qualified 12574cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // atomic type. 12584cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12594cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Don't need to worry about array types here, since _Atomic can't be 12604cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // applied to such types. 12614cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SplitQualType Split = T.getSplitUnqualifiedType(); 12624cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith T = BuildAtomicType(QualType(Split.Ty, 0), 12634cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith DS ? DS->getAtomicSpecLoc() : Loc); 12644cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (T.isNull()) 12654cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return T; 12664cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Split.Quals.addCVRQualifiers(CVR); 12674cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Split.Quals); 12684cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 12694cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 12704cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Qualifiers::fromCVRMask(CVR), DS); 12714cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 12724cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 1273075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1274075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1275075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1276075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1277075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1278f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1279f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1280f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1281f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1282f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1283f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1284f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1285f85e193739c953358c865005855253af4f68a497John McCall return type; 1286f85e193739c953358c865005855253af4f68a497John McCall 1287f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1288f85e193739c953358c865005855253af4f68a497John McCall 1289f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1290f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1291f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1292f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1293f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1294f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1295f85e193739c953358c865005855253af4f68a497John McCall 1296f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1297f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1298f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1299f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1300f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 13015b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1302ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1303ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 130471f55f771794674a410171dbf3cb5dbedf95d033David Blaikie } else if (S.isUnevaluatedContext()) { 1305ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1306f85e193739c953358c865005855253af4f68a497John McCall 1307e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // If that failed, give an error and recover using __strong. __strong 1308e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // is the option most likely to prevent spurious second-order diagnostics, 1309e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // like when binding a reference to a field. 1310f85e193739c953358c865005855253af4f68a497John McCall } else { 1311f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1312f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1313f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1314f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1315ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1316ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1317ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1318f85e193739c953358c865005855253af4f68a497John McCall } else { 1319ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1320f85e193739c953358c865005855253af4f68a497John McCall } 1321e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall implicitLifetime = Qualifiers::OCL_Strong; 1322f85e193739c953358c865005855253af4f68a497John McCall } 1323f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1324f85e193739c953358c865005855253af4f68a497John McCall 1325f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1326f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1327f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1328f85e193739c953358c865005855253af4f68a497John McCall} 1329f85e193739c953358c865005855253af4f68a497John McCall 1330cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1331cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1332cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1333cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1334cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1335cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1336cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1337cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1338cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1339cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1340cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1341cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1342cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 13432865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1344cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1345cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1346cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1347cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1348ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1349cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1350cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1351cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1352c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 135392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1354f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 13554e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1356f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1357f85e193739c953358c865005855253af4f68a497John McCall 1358cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 13592865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1360cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1361cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1362cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1363cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1364cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1365cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1366cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1367cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1368cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1369cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1370cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1371cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1372cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1373cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1374cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 137554e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 13762865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 137754e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 137891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier assert(Context.getCanonicalType(T) != Context.OverloadTy && 13799625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 138091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 138169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 138291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 138391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 138491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type T, an attempt to create the type "lvalue reference to cv TR" creates 138591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // the type "lvalue reference to T", while an attempt to create the type 138669d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 138754e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 138854e14c4db764c0636160d26c5bbf491637c83a76John McCall 138954e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 139054e14c4db764c0636160d26c5bbf491637c83a76John McCall // 139154e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 139254e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 139354e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 139454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 139554e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 139654e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 139754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 139854e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 139954e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 140069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 140169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1402cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1403cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 140433a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1405cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1406cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1407cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1408cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1409cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1410cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1411f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 14124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1413f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1414f85e193739c953358c865005855253af4f68a497John McCall 1415cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 14167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 14172865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 14182865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1419cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1420cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1421e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1422e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1423282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smithstatic bool isArraySizeVLA(Sema &S, Expr *ArraySize, llvm::APSInt &SizeVal) { 1424282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode 1425282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // (like gnu99, but not c99) accept any evaluatable value as an extension. 1426ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor class VLADiagnoser : public Sema::VerifyICEDiagnoser { 1427ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor public: 1428ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor VLADiagnoser() : Sema::VerifyICEDiagnoser(true) {} 142991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1430ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) { 1431ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 143291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1433ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseFold(Sema &S, SourceLocation Loc, SourceRange SR) { 1434ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.Diag(Loc, diag::ext_vla_folded_to_constant) << SR; 1435ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 1436ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } Diagnoser; 143791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1438ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor return S.VerifyIntegerConstantExpression(ArraySize, &SizeVal, Diagnoser, 1439ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.LangOpts.GNUMode).isInvalid(); 1440e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1441e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1442e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1443cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1444cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1445cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1446cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1447cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 14481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 14491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1450cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1451efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Brackets The range from the opening '[' to the closing ']'. 1452cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1453cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1454cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1455cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1456cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1457cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1458cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1459cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 14607e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 14610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 14627e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 14634e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 1464138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1465138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 146691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type, the (possibly cv-qualified) type void, a function type or an 1467138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1468138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1469bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // C++ [dcl.array]p3: 1470bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // When several "array of" specifications are adjacent, [...] only the 1471bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // first of the constant expressions that specify the bounds of the arrays 1472bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // may be omitted. 1473bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // 1474138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1475138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1476138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1477138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1478138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1479138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 148091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1481bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith if (T->isVoidType() || T->isIncompleteArrayType()) { 1482923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1483923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1484923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 148591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 148691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (RequireNonAbstractType(Brackets.getBegin(), T, 1487138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1488138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 148991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1490923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1491138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1492138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1493923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1494923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1495923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1496923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1497cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1498cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1499cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1500ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1501cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1502cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1505cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1506cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1507cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1508cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1509c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1510c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1511c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1512cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 15131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1514806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1515806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1516806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1517806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1518806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1519806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1520806054db6653d29cb0d9692df3612cbcd03d0530John McCall 15215e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1522429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1523429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1524429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1525429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1526429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1527429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1528429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 15295e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1530cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 1531282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // C++11 allows contextual conversions to such types. 153280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (!getLangOpts().CPlusPlus11 && 1533282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize && !ArraySize->isTypeDependent() && 15341274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1535cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1536cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1537cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1538cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1539282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 15402767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1541cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1542f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 15437e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1544f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1545f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1546ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 15477e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1548282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } else if ((!T->isDependentType() && !T->isIncompleteType() && 1549282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !T->isConstantSizeType()) || 1550282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith isArraySizeVLA(*this, ArraySize, ConstVal)) { 1551282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // Even in C++11, don't allow contextual conversions in the array bound 1552282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // of a VLA. 155380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && 1554282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1555282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1556282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith << ArraySize->getType() << ArraySize->getSourceRange(); 1557282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return QualType(); 1558282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } 1559282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 1560e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1561e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1562e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 15637e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1564cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1565cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1566cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1567923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1568b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1569b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1570b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1571b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1572b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1573b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1574923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1575923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1576923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 157702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 157802024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 157991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(ArraySize->getLocStart(), 158002024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 158102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1582923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 158320cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 158420cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 158520cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 158620cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 158720cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 158820cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 158920cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 159091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 1591fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali !T->isIncompleteType() && !T->isUndeducedType()) { 159291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Is the array too large? 15932767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 15942767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 1595ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) { 15962767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 15972767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 15982767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 1599ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu return QualType(); 1600ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu } 16011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 160291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 160346a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1604cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1605617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly 1606617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly // OpenCL v1.2 s6.9.d: variable length arrays are not supported. 1607617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly if (getLangOpts().OpenCL && T->isVariableArrayType()) { 1608617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly Diag(Loc, diag::err_opencl_vla); 1609617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly return QualType(); 1610617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly } 1611af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 16124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().C99) { 16130fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 16140fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1615f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 161691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!T->isDependentType() && 16173c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT.isPODType(Context) && 16183c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT->isObjCLifetimeType()) { 16190fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1620f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 16210fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 162291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 1623a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1624a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1625a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1626a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1627a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 16280fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 16290fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 16308a3f9e46cb988d2c664395b21910091e3730ae82Richard Smith Diag(Loc, diag::ext_vla); 16310fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1632d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 16334e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().CPlusPlus? diag::err_c99_array_usage_cxx 1634d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1635cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1636cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1637630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko if (T->isVariableArrayType()) { 1638630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko // Warn about VLAs for -Wvla. 1639630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko Diag(Loc, diag::warn_vla_used); 1640630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko } 1641630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko 1642cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1643cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 16449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 16469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 16479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 16489ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 16499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 16519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 16521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 16539cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 16549cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 16559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16569cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16589ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 16599cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 16609ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 16619f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman Diag(AttrLoc, diag::err_attribute_argument_type) 16629f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << "ext_vector_type" << AANT_ArgumentIntegerConstant 16639f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ArraySize->getSourceRange(); 16649cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16659cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 16689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 16691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 16729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 16739ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 16749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16771652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize)) { 16781652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Diag(AttrLoc, diag::err_attribute_size_too_large) 16791652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << ArraySize->getSourceRange(); 16801652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return QualType(); 16811652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 16821652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman 16834ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 16841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 16851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16869ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 16879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1689ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedmanbool Sema::CheckFunctionReturnType(QualType T, SourceLocation Loc) { 1690724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 169191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(Loc, diag::err_func_returning_array_function) 169258408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1693ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1694724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1695aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1696aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1697aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1698aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1699aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1700ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1701ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 1702ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1703ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 1704ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 1705ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 1706ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Diag(Loc, diag::err_object_cannot_be_passed_returned_by_value) << 0 << T; 1707ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return 0; 1708aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1709aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1710ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return false; 1711ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman} 1712ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1713ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli FriedmanQualType Sema::BuildFunctionType(QualType T, 1714ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman llvm::MutableArrayRef<QualType> ParamTypes, 1715ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation Loc, DeclarationName Entity, 1716ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman const FunctionProtoType::ExtProtoInfo &EPI) { 1717724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1718ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1719ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Invalid |= CheckFunctionReturnType(T, Loc); 1720ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1721bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose for (unsigned Idx = 0, Cnt = ParamTypes.size(); Idx < Cnt; ++Idx) { 1722aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 1723c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 17242dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1725724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1726724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1727aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1728aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1729aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1730aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1731aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1732724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1733cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 173454e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1735724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1736724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1737724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1738724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1739724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1740bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose return Context.getFunctionType(T, ParamTypes, EPI); 1741724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1743949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1744949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1745949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1746949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 1747949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1748949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1749949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1750949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1751949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 17521eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 17532865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1754949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1755949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1756949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1757949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1758949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1759949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1760949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1761949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1762949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1763949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1764949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1765949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1766949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1767949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1768737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1769949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1770949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 17718d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1772ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1773949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1774949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1775949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1776949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1777949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1778949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1779949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1780949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1781949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1782949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1783949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1784949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1785949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1786949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1787b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // C++ allows the class type in a member pointer to be an incomplete type. 1788b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // In the Microsoft ABI, the size of the member pointer can vary 1789b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // according to the class type, which means that we really need a 1790b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // complete type if possible, which means we need to instantiate templates. 1791b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // 179284e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // If template instantiation fails or the type is just incomplete, we have to 179384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // add an extra slot to the member pointer. Yes, this does cause problems 179484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // when passing pointers between TUs that disagree about the size. 179584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { 179684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner CXXRecordDecl *RD = Class->getAsCXXRecordDecl(); 1797e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RD && !RD->hasAttr<MSInheritanceAttr>()) { 179884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Lock in the inheritance model on the first use of a member pointer. 179984e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Otherwise we may disagree about the size at different points in the TU. 180084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // FIXME: MSVC picks a model on the first use that needs to know the size, 180184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // rather than on the first mention of the type, e.g. typedefs. 1802e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RequireCompleteType(Loc, Class, 0) && !RD->isBeingDefined()) { 180384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // We know it doesn't have an attribute and it's incomplete, so use the 180484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // unspecified inheritance model. If we're in the record body, we can 180584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // figure out the inheritance model. 180684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner for (CXXRecordDecl::redecl_iterator I = RD->redecls_begin(), 180784e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner E = RD->redecls_end(); I != E; ++I) { 180884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner I->addAttr(::new (Context) UnspecifiedInheritanceAttr( 180984e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner RD->getSourceRange(), Context)); 181084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 181184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 181284e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 181384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 1814679fc9314c2bde5eb6bea33c790d1a035461e618Joao Matos 1815ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // FIXME: Adjust member function pointer calling conventions. 1816ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 18172865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1818949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 18191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18209a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 18219a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 18229a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 18239a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 1824efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Loc The source location, used for diagnostics. 18259a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 18269a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 18279a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 18289a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 18299a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 18309a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 183191cbbbf506c892a26d4301e2b3ccd377b0938817Chad RosierQualType Sema::BuildBlockPointerType(QualType T, 18321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 18339a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 18340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 18359a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 18369a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 18379a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 18381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18392865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 18409a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 18419a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1842b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1843b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 18443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1845a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 18463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 18473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1849a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1850f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1851e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1852a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1853e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 18541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1855a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1856e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1857e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1858e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1859a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1860a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1861a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1862a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1863f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1864f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1865f85e193739c953358c865005855253af4f68a497John McCall/// types. 1866f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1867f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1868f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1869f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1870f85e193739c953358c865005855253af4f68a497John McCall 1871f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1872f85e193739c953358c865005855253af4f68a497John McCall 1873f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1874f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1875f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1876f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1877f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1878f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1879f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1880f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1881f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1882f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1883f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1884f85e193739c953358c865005855253af4f68a497John McCall break; 1885f85e193739c953358c865005855253af4f68a497John McCall 1886f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1887f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1888f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1889f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1890f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1891f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1892f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1893f85e193739c953358c865005855253af4f68a497John McCall break; 1894f85e193739c953358c865005855253af4f68a497John McCall 1895f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1896f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1897f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1898f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1899f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1900f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1901f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1902f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1903f85e193739c953358c865005855253af4f68a497John McCall 1904f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1905f85e193739c953358c865005855253af4f68a497John McCall goto done; 1906f85e193739c953358c865005855253af4f68a497John McCall 1907f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1908f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1909f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1910f85e193739c953358c865005855253af4f68a497John McCall return; 1911f85e193739c953358c865005855253af4f68a497John McCall } 1912f85e193739c953358c865005855253af4f68a497John McCall } 1913f85e193739c953358c865005855253af4f68a497John McCall done: 1914f85e193739c953358c865005855253af4f68a497John McCall 1915f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1916f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1917f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1918f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1919f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1920f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1921f85e193739c953358c865005855253af4f68a497John McCall 1922f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1923f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1924f85e193739c953358c865005855253af4f68a497John McCall 1925f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1926f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 192791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1928f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1929f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1930f85e193739c953358c865005855253af4f68a497John McCall else 1931f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1932f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1933f85e193739c953358c865005855253af4f68a497John McCall 1934f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1935f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1936f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1937f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1938f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1939f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1940f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1941f85e193739c953358c865005855253af4f68a497John McCall return; 1942f85e193739c953358c865005855253af4f68a497John McCall 1943f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1944f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 19451c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 19461c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 19471c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1948f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1949f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 19508e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 1951f85e193739c953358c865005855253af4f68a497John McCall return; 1952f85e193739c953358c865005855253af4f68a497John McCall 1953a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1954a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1955f85e193739c953358c865005855253af4f68a497John McCall 1956f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1957f85e193739c953358c865005855253af4f68a497John McCall } else return; 1958f85e193739c953358c865005855253af4f68a497John McCall 1959f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1960f85e193739c953358c865005855253af4f68a497John McCall} 1961f85e193739c953358c865005855253af4f68a497John McCall 19628c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredQualifiers( 19638c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Sema &S, unsigned Quals, 19648c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation FallbackLoc, 19658c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation ConstQualLoc = SourceLocation(), 19668c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation VolatileQualLoc = SourceLocation(), 19678c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation RestrictQualLoc = SourceLocation(), 19688c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation AtomicQualLoc = SourceLocation()) { 1969eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith if (!Quals) 1970eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith return; 1971eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith 19728c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const SourceManager &SM = S.getSourceManager(); 19738c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19748c952cd40ccec9d720931f27e7d722fed207d536Richard Smith struct Qual { 19758c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned Mask; 19768c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const char *Name; 19778c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation Loc; 19788c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } const QualKinds[4] = { 19798c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_const, "const", ConstQualLoc }, 19808c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_volatile, "volatile", VolatileQualLoc }, 19818c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_restrict, "restrict", RestrictQualLoc }, 19828c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_atomic, "_Atomic", AtomicQualLoc } 19838c952cd40ccec9d720931f27e7d722fed207d536Richard Smith }; 19848c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 198530d237556fdd29b5075c990da953116225b95d9dRobert Wilhelm SmallString<32> QualStr; 1986d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1987d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 19888c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixItHint FixIts[4]; 19898c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19908c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Build a string naming the redundant qualifiers. 19918c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned I = 0; I != 4; ++I) { 19928c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Quals & QualKinds[I].Mask) { 19938c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualStr.empty()) QualStr += ' '; 19948c952cd40ccec9d720931f27e7d722fed207d536Richard Smith QualStr += QualKinds[I].Name; 19958c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19968c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If we have a location for the qualifier, offer a fixit. 19978c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation QualLoc = QualKinds[I].Loc; 19988c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualLoc.isInvalid()) { 19998c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixIts[NumQuals] = FixItHint::CreateRemoval(QualLoc); 20008c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Loc.isInvalid() || SM.isBeforeInTranslationUnit(QualLoc, Loc)) 20018c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Loc = QualLoc; 20028c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 2003d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20048c952cd40ccec9d720931f27e7d722fed207d536Richard Smith ++NumQuals; 20058c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20068c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 2007d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20088c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S.Diag(Loc.isInvalid() ? FallbackLoc : Loc, diag::warn_qual_return_type) 20098c952cd40ccec9d720931f27e7d722fed207d536Richard Smith << QualStr << NumQuals << FixIts[0] << FixIts[1] << FixIts[2] << FixIts[3]; 20108c952cd40ccec9d720931f27e7d722fed207d536Richard Smith} 2011a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 20128c952cd40ccec9d720931f27e7d722fed207d536Richard Smith// Diagnose pointless type qualifiers on the return type of a function. 20138c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredFunctionQualifiers(Sema &S, QualType RetTy, 20148c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Declarator &D, 20158c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned FunctionChunkIndex) { 20168c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getTypeObject(FunctionChunkIndex).Fun.hasTrailingReturnType()) { 20178c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: TypeSourceInfo doesn't preserve location information for 20188c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // qualifiers. 2019eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, RetTy.getLocalCVRQualifiers(), 20208c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 20218c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 2022d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 20238c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20248c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned OuterChunkIndex = FunctionChunkIndex + 1, 20258c952cd40ccec9d720931f27e7d722fed207d536Richard Smith End = D.getNumTypeObjects(); 20268c952cd40ccec9d720931f27e7d722fed207d536Richard Smith OuterChunkIndex != End; ++OuterChunkIndex) { 20278c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk &OuterChunk = D.getTypeObject(OuterChunkIndex); 20288c952cd40ccec9d720931f27e7d722fed207d536Richard Smith switch (OuterChunk.Kind) { 20298c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Paren: 20308c952cd40ccec9d720931f27e7d722fed207d536Richard Smith continue; 20318c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20328c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Pointer: { 20338c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk::PointerTypeInfo &PTI = OuterChunk.Ptr; 20348c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers( 20358c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S, PTI.TypeQuals, 20368c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation(), 20378c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 20388c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 20398c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 20408c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.AtomicQualLoc)); 20418c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 20428c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20438c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20448c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Function: 20458c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::BlockPointer: 20468c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Reference: 20478c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Array: 20488c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::MemberPointer: 20498c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: We can't currently provide an accurate source location and a 20508c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // fix-it hint for these. 2051eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith unsigned AtomicQual = RetTy->isAtomicType() ? DeclSpec::TQ_atomic : 0; 20528c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers(S, RetTy.getCVRQualifiers() | AtomicQual, 20538c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 20548c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 20558c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20568c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20578c952cd40ccec9d720931f27e7d722fed207d536Richard Smith llvm_unreachable("unknown declarator chunk kind"); 20584cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 2059d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20608c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If the qualifiers come from a conversion function type, don't diagnose 20618c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // them -- they're not necessarily redundant, since such a conversion 20628c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // operator can be explicitly called as "x.operator const int()". 20638c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 20648c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 2065d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20668c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Just parens all the way out to the decl specifiers. Diagnose any qualifiers 20678c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // which are present there. 2068eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, D.getDeclSpec().getTypeQualifiers(), 20698c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc(), 20708c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getConstSpecLoc(), 20718c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getVolatileSpecLoc(), 20728c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getRestrictSpecLoc(), 20738c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getAtomicSpecLoc()); 2074d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 2075d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 20778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 20788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 20798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 2080930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 20818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 2082711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 20838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 20848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 20858999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 208660e141e1f87211ca831de6821003d80fe20a06f3Richard Smith bool ContainsPlaceholderType = false; 208760e141e1f87211ca831de6821003d80fe20a06f3Richard Smith 20883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 208998a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 20903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 20918999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 20920486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 20933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 20948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 209560e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = D.getDeclSpec().containsPlaceholderType(); 209691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2097591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 2098d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 209915987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 2100d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 2101591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 2102930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 2103930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 21043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 21050efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 21063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 2107930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 210891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // "void" instead. 21098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 2110a78a640c5f59720f2c2b8034eca4fbf8525d9026Rafael Espindola if (AttributeList *attrs = D.getDeclSpec().getAttributes().getList()) 2111f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclSpec, attrs); 2112930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 211348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 211448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 211548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 211648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 211791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 21188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 211960e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = T->getContainedAutoType(); 212048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 2121930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 2122dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 2123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 2124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 2125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2126d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 2127d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // In C++11, a function declarator using 'auto' must have a trailing return 21288110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 21298110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 2130fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // C++14 In generic lambdas allow 'auto' in their parameters. 213160e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (ContainsPlaceholderType && 213280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!SemaRef.getLangOpts().CPlusPlus11 || !D.isFunctionDeclarator())) { 2133baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2135baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 2136baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 2137b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 2138f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2139f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 2140cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2141cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 2142baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 2143fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Error = 0; 2144fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali break; 2145fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali case Declarator::LambdaExprParameterContext: 2146fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (!(SemaRef.getLangOpts().CPlusPlus1y 2147fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali && D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto)) 2148fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Error = 14; 2149baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2150baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 21517a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 21527a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 21538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 2154eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 2155465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 2156465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 2157465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 21586666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Interface: Error = 4; /* Interface member */ break; 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2160baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2161baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 216217b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 21636666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 5; // Exception declaration 2164baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2165baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 21666666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 6; // Template parameter 2167baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2168baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 21696666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 7; // Block literal 217034b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 217134b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 21726666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 8; // Template type argument 217334b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 2174162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 21753e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 21766666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 10; // Type alias 2177162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 21787796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 217960e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 218060e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 11; // Function return type 21817796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 218214f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 218360e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 218460e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 12; // conversion-type-id 218514f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith break; 218634b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 218714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith Error = 13; // Generic 2188baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2189baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 2190baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 2191baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 2192baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 21930b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2194baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2195baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 2196baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 2197ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 21986666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 9; 2199ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 22008110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 22018110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 22026666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 11; 22038110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 2204d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p2: 'auto' is always fine if the declarator 2205e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 2206e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 2207e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 220880ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (SemaRef.getLangOpts().CPlusPlus11 && Error != -1) { 2209e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2210e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 2211e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 2212e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2213e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 2214e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 221554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (FTI.hasTrailingReturnType()) { 2216e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 2217e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 2218e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2219e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2220e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2221e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2222e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 222314f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SourceRange AutoRange = D.getDeclSpec().getTypeSpecTypeLoc(); 222414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 222514f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith AutoRange = D.getName().getSourceRange(); 222614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith 2227baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 2228fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali const bool IsDeclTypeAuto = 2229fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_decltype_auto; 223014f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), diag::err_auto_not_allowed) 2231fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali << IsDeclTypeAuto << Error << AutoRange; 22328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 2233baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 22340aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 223514f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), 223614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith diag::warn_cxx98_compat_auto_type_specifier) 223714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith << AutoRange; 2238baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 22398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 22404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus && 22415e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 22428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 22438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 22448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 22457796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 22467796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // Class and enumeration definitions are syntactically not allowed in 22477796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // trailing return types. 22487796eb5643244f3134834253ce5ea89107ac21c1Richard Smith llvm_unreachable("parser should not have allowed this"); 22497796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 22508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 22518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 22528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 22538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 22548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 2255f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2256d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.type]p3: 22578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 22588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 22598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 22608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 22618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 22638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 22658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2266601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 226914f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 22708cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 22718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 22728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 22738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 22748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 22758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 22778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2278601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 2281fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali case Declarator::LambdaExprParameterContext: 2282cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2283cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 22848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 22858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 22868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 22878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 22898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2290601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 22938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 22948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 22958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 22968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 2298601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 23008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 23018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 23028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 23038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 23048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 23058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2306a08c2fb74ef823c185619ecc532f8fced6a1982fBenjamin Kramerstatic std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ 2307d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::string Quals = 2308d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 2309d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2310d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (FnTy->getRefQualifier()) { 2311d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_None: 2312d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2313d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2314d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_LValue: 2315d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2316d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2317d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += '&'; 2318d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2319d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2320d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_RValue: 2321d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2322d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2323d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += "&&"; 2324d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2325d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2326d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2327d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return Quals; 2328d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2329d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2330d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// Check that the function type T, which has a cv-qualifier or a ref-qualifier, 2331d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// can be contained within the declarator chunk DeclType, and produce an 2332d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// appropriate diagnostic if not. 2333d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smithstatic void checkQualifiedFunction(Sema &S, QualType T, 2334d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DeclaratorChunk &DeclType) { 2335d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: a function type with a 2336d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // cv-qualifier or a ref-qualifier can only appear at the topmost level 2337d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // of a type. 2338d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith int DiagKind = -1; 2339d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (DeclType.Kind) { 2340d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Paren: 2341d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::MemberPointer: 2342d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases are permitted. 2343d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2344d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Array: 2345d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Function: 2346d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases don't allow function types at all; no need to diagnose the 2347d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // qualifiers separately. 2348d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2349d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::BlockPointer: 2350d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 0; 2351d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2352d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Pointer: 2353d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 1; 2354d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2355d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Reference: 2356d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 2; 2357d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2358d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2359d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2360d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(DiagKind != -1); 2361d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(DeclType.Loc, diag::err_compound_qualified_function_type) 2362d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << DiagKind << isa<FunctionType>(T.IgnoreParens()) << T 2363d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(T->castAs<FunctionProtoType>()); 2364d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2365d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2366b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// Produce an approprioate diagnostic for an ambiguity between a function 2367b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// declarator and a C++ direct-initializer. 2368b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smithstatic void warnAboutAmbiguousFunction(Sema &S, Declarator &D, 2369b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith DeclaratorChunk &DeclType, QualType RT) { 2370b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2371b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith assert(FTI.isAmbiguous && "no direct-initializer / function ambiguity"); 2372b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2373b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If the return type is void there is no ambiguity. 2374b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isVoidType()) 2375b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2376b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2377b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a non-class type can have at most one argument. 2378b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!RT->isRecordType() && FTI.NumArgs > 1) 2379b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2380b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2381b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a reference must have exactly one argument. 2382b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isReferenceType() && FTI.NumArgs != 1) 2383b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2384b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2385b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Only warn if this declarator is declaring a function at block scope, and 2386b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // doesn't have a storage class (such as 'extern') specified. 2387b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!D.isFunctionDeclarator() || 2388b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith D.getFunctionDefinitionKind() != FDK_Declaration || 2389b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith !S.CurContext->isFunctionOrMethod() || 2390d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola D.getDeclSpec().getStorageClassSpec() 2391b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith != DeclSpec::SCS_unspecified) 2392b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2393b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2394b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Inside a condition, a direct initializer is not permitted. We allow one to 2395b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // be parsed in order to give better diagnostics in condition parsing. 2396b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (D.getContext() == Declarator::ConditionContext) 2397b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2398b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2399b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange ParenRange(DeclType.Loc, DeclType.EndLoc); 2400b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2401d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(DeclType.Loc, 2402d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FTI.NumArgs ? diag::warn_parens_disambiguated_as_function_declaration 2403d64effc4e31044c05d6e4400150edb26e914983aRichard Smith : diag::warn_empty_parens_are_function_decl) 2404d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << ParenRange; 2405d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2406d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // If the declaration looks like: 2407d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // T var1, 2408d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // f(); 2409d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // and name lookup finds a function named 'f', then the ',' was 2410d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // probably intended to be a ';'. 2411d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (!D.isFirstDeclarator() && D.getIdentifier()) { 2412d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Comma(D.getCommaLoc(), S.SourceMgr); 2413d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Name(D.getIdentifierLoc(), S.SourceMgr); 2414d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (Comma.getFileID() != Name.getFileID() || 2415d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Comma.getSpellingLineNumber() != Name.getSpellingLineNumber()) { 2416d64effc4e31044c05d6e4400150edb26e914983aRichard Smith LookupResult Result(S, D.getIdentifier(), SourceLocation(), 2417d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Sema::LookupOrdinaryName); 2418d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (S.LookupName(Result, S.getCurScope())) 2419d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(D.getCommaLoc(), diag::note_empty_parens_function_call) 2420d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << FixItHint::CreateReplacement(D.getCommaLoc(), ";") 2421d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << D.getIdentifier(); 2422d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2423d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2424b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2425d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (FTI.NumArgs > 0) { 2426d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration with parameters, eg. "T var(T());", suggest adding parens 2427d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // around the first parameter to turn the declaration into a variable 2428d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2429b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange Range = FTI.ArgInfo[0].Param->getSourceRange(); 2430b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation B = Range.getBegin(); 2431b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation E = S.PP.getLocForEndOfToken(Range.getEnd()); 2432b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // FIXME: Maybe we should suggest adding braces instead of parens 2433b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // in C++11 for classes that don't have an initializer_list constructor. 2434b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(B, diag::note_additional_parens_for_variable_declaration) 2435b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(B, "(") 2436b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(E, ")"); 2437d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } else { 2438d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration without parameters, eg. "T var();", suggest replacing the 2439d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // parens with an initializer to turn the declaration into a variable 2440d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2441b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const CXXRecordDecl *RD = RT->getAsCXXRecordDecl(); 2442d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2443b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Empty parens mean value-initialization, and no parens mean 2444b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // default initialization. These are equivalent if the default 2445b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // constructor is user-provided or if zero-initialization is a 2446b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // no-op. 2447b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RD && RD->hasDefinition() && 2448b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith (RD->isEmpty() || RD->hasUserProvidedDefaultConstructor())) 2449b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_default_ctor) 2450b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateRemoval(ParenRange); 2451b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith else { 24528adf837adc65b55a3f74643c02c1ee077dc26f06Richard Smith std::string Init = 24538adf837adc65b55a3f74643c02c1ee077dc26f06Richard Smith S.getFixItZeroInitializerForType(RT, ParenRange.getBegin()); 245480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (Init.empty() && S.LangOpts.CPlusPlus11) 2455b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith Init = "{}"; 2456b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!Init.empty()) 2457b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_zero_initialize) 2458b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateReplacement(ParenRange, Init); 2459b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2460b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2461b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith} 2462b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2463ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// Helper for figuring out the default CC for a function declarator type. If 2464ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// this is the outermost chunk, then we can determine the CC from the 2465ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// declarator context. If not, then this could be either a member function 2466ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// type or normal function type. 2467ef072033876e295ec5d3402f8730a3ae358ad815Reid Klecknerstatic CallingConv 2468ef072033876e295ec5d3402f8730a3ae358ad815Reid KlecknergetCCForDeclaratorChunk(Sema &S, Declarator &D, 2469ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const DeclaratorChunk::FunctionTypeInfo &FTI, 2470ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner unsigned ChunkIndex) { 2471ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner assert(D.getTypeObject(ChunkIndex).Kind == DeclaratorChunk::Function); 2472ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2473ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool IsCXXInstanceMethod = false; 2474ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2475ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (S.getLangOpts().CPlusPlus) { 2476ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Look inwards through parentheses to see if this chunk will form a 2477ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // member pointer type or if we're the declarator. Any type attributes 2478ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // between here and there will override the CC we choose here. 2479ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner unsigned I = ChunkIndex; 2480ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool FoundNonParen = false; 2481ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner while (I && !FoundNonParen) { 2482ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner --I; 2483ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (D.getTypeObject(I).Kind != DeclaratorChunk::Paren) 2484ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FoundNonParen = true; 2485ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2486ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2487ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (FoundNonParen) { 2488ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // If we're not the declarator, we're a regular function type unless we're 2489ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // in a member pointer. 2490ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod = 2491ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner D.getTypeObject(I).Kind == DeclaratorChunk::MemberPointer; 2492ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } else { 2493ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // We're the innermost decl chunk, so must be a function declarator. 2494ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner assert(D.isFunctionDeclarator()); 2495ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2496ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // If we're inside a record, we're declaring a method, but it could be 2497d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner // explicitly or implicitly static. 2498ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod = 2499d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner D.isFirstDeclarationOfMember() && 2500d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 2501d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner !D.isStaticMember(); 2502ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2503ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2504ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2505ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return S.Context.getDefaultCallingConvention(FTI.isVariadic, 2506ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod); 2507ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner} 2508ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 25098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 25108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 25118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 25128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 25138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 25148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 25158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 25168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 25174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &LangOpts = S.getLangOpts(); 25188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2519cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 2520cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 2521cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 2522cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 25231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2524162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 2525162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 2526162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 25273e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 25283e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 2529162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2530d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Does T refer to a function type with a cv-qualifier or a ref-qualifier? 2531d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith bool IsQualifiedFunction = T->isFunctionProtoType() && 2532d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith (T->castAs<FunctionProtoType>()->getTypeQuals() != 0 || 2533d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None); 2534d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2535a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // If T is 'decltype(auto)', the only declarators we can have are parens 2536a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // and at most one function declarator if this is a function declaration. 2537a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (const AutoType *AT = T->getAs<AutoType>()) { 2538a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (AT->isDecltypeAuto()) { 2539a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith for (unsigned I = 0, E = D.getNumTypeObjects(); I != E; ++I) { 2540a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned Index = E - I - 1; 2541a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DeclaratorChunk &DeclChunk = D.getTypeObject(Index); 2542a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagId = diag::err_decltype_auto_compound_type; 2543a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagKind = 0; 2544a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith switch (DeclChunk.Kind) { 2545a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Paren: 2546a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2547a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Function: { 2548a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned FnIndex; 2549a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (D.isFunctionDeclarationContext() && 2550a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.isFunctionDeclarator(FnIndex) && FnIndex == Index) 2551a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2552a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagId = diag::err_decltype_auto_function_declarator_not_declaration; 2553a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2554a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2555a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Pointer: 2556a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::BlockPointer: 2557a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::MemberPointer: 2558a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 0; 2559a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2560a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Reference: 2561a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 1; 2562a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2563a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Array: 2564a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 2; 2565a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2566a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2567a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 2568a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclChunk.Loc, DiagId) << DiagKind; 2569a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.setInvalidType(true); 2570a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2571a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2572a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2573a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2574a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 257598eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 257698eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 257798eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 25788ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 2580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 2581711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2582d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction) { 2583d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith checkQualifiedFunction(S, T, DeclType); 2584d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = DeclType.Kind == DeclaratorChunk::Paren; 2585d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 25865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 2587075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 25888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 2589075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 25905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 25919af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 25929af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 25938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 25941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 25962865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 25978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 25985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 25995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 26006a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 26016a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 26028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 26038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 26046a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 26056a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 26066a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 26078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 2608c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 26092865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 26108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 261114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 261214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 26138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 26142865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 26158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 26180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 26196a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 26206a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 26218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 26228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 26236a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 26246a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 26256a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 26268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 26272865474261a608c7873b87ba4af110d17907896dJohn McCall 26282865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 26292865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 26308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 26315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 26320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 26335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 26346a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 26356a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 26368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 26378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 26386a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 26396a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 26406a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2641fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 264294f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 26435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 26445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 26455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 26465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 26475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 26485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 26495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2650c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2651f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2652f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2653f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 26548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2655f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2656f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2657f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 26587f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 26597f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: The optional type qualifiers and the keyword static 26607f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // shall appear only in a declaration of a function parameter with an 26617f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // array type, ... 26627f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static || ATI.TypeQuals) { 266399570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay if (!(D.isPrototypeContext() || 266499570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay D.getContext() == Declarator::KNRTypeListContext)) { 26657f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_outside_prototype) << 26667f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 26677f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Remove the 'static' and the type qualifiers. 26687f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 26697f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 26707f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 26717f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 26727f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26737f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 26747f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: ... and then only in the outermost array type 26757f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // derivation. 26767f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg unsigned x = chunkIndex; 26777f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg while (x != 0) { 26787f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Walk outwards along the declarator chunks. 26797f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg x--; 26807f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg const DeclaratorChunk &DC = D.getTypeObject(x); 26817f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg switch (DC.Kind) { 26827f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Paren: 26837f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg continue; 26847f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Array: 26857f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Pointer: 26867f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Reference: 26877f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::MemberPointer: 26887f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_not_outermost) << 26897f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 26907f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 26917f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 26927f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 26937f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 26947f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26957f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Function: 26967f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::BlockPointer: 26977f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // These are invalid anyway, so just ignore. 26987f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26997f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 27007f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 27017f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 2702fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali const AutoType *AT = T->getContainedAutoType(); 2703fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // Allow arrays of auto if we are a generic lambda parameter. 2704fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // i.e. [](auto (&array)[5]) { return array[0]; }; OK 2705fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (AT && D.getContext() != Declarator::LambdaExprParameterContext) { 2706a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // We've already diagnosed this for decltype(auto). 2707dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!AT->isDecltypeAuto()) 2708a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclType.Loc, diag::err_illegal_decl_array_of_auto) 2709a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith << getPrintableNameForEntity(Name) << T; 2710dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith T = QualType(); 2711dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith break; 2712a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2713a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 27148ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 27158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 27165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 27175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2718f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 27195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 27205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 27225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2723d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = FTI.TypeQuals || FTI.hasRefQualifier(); 27243cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 272534b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 272634b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 272734b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 272834b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 272934b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 273034b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 273160e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !FTI.hasTrailingReturnType() && chunkIndex == 0 && 273260e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !S.getLangOpts().CPlusPlus1y) { 27338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 273434b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 273534b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 273634b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 273754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } else if (FTI.hasTrailingReturnType()) { 2738e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2739e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 27408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2741e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2742e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2743e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2744f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2745a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith (T.hasQualifiers() || !isa<AutoType>(T) || 2746a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith cast<AutoType>(T)->isDecltypeAuto())) { 27478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 274834b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 274934b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 275034b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 275134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 275254655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = S.GetTypeFromParser(FTI.getTrailingReturnType(), &TInfo); 275354655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (T.isNull()) { 275454655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith // An error occurred parsing the trailing return type. 275554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = Context.IntTy; 275654655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith D.setInvalidType(true); 275754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } 275834b41d939a1328f484511c6002ba2456db879a29Richard Smith } 275934b41d939a1328f484511c6002ba2456db879a29Richard Smith } 276034b41d939a1328f484511c6002ba2456db879a29Richard Smith 2761e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2762e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2763e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2764e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2765e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2766e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2767e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2768e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2769e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2770e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 27718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2772e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2773e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2774e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2775e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2776aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2777aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2778aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 277919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 278019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 278119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), diag::err_opencl_half_return) << T; 278219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 278319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 278419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 278519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), 278619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 1; 278719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 278819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2789aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2790aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 2791ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 2792ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 2793ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 2794ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation DiagLoc, FixitLoc; 2795ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2796ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = TInfo->getTypeLoc().getLocStart(); 2797ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(TInfo->getTypeLoc().getLocEnd()); 2798ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } else { 2799ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = D.getDeclSpec().getTypeSpecTypeLoc(); 2800ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(D.getDeclSpec().getLocEnd()); 2801ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2802ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman S.Diag(DiagLoc, diag::err_object_cannot_be_passed_returned_by_value) 2803ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << 0 << T 2804ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << FixItHint::CreateInsertion(FixitLoc, "*"); 2805ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2806ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman T = Context.getObjCObjectPointerType(T); 2807ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2808ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TypeLocBuilder TLB; 2809ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLB.pushFullCopy(TInfo->getTypeLoc()); 2810ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman ObjCObjectPointerTypeLoc TLoc = TLB.push<ObjCObjectPointerTypeLoc>(T); 2811ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLoc.setStarLoc(FixitLoc); 2812ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TInfo = TLB.getTypeSourceInfo(Context, T); 2813ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2814ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2815ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman D.setInvalidType(true); 2816ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2817ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 28185291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 28195291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 28208c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if ((T.getCVRQualifiers() || T->isAtomicType()) && 28218c952cd40ccec9d720931f27e7d722fed207d536Richard Smith !(S.getLangOpts().CPlusPlus && 28228c952cd40ccec9d720931f27e7d722fed207d536Richard Smith (T->isDependentType() || T->isRecordType()))) 28238c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredFunctionQualifiers(S, T, D, chunkIndex); 2824d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 282502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // Objective-C ARC ownership qualifiers are ignored on the function 282602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // return type (by type canonicalization). Complain if this attribute 282702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // was written here. 282802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (T.getQualifiers().hasObjCLifetime()) { 282902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor SourceLocation AttrLoc; 283002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (chunkIndex + 1 < D.getNumTypeObjects()) { 283102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 283202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr = ReturnTypeChunk.getAttrs(); 283302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 283402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 283502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 283602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 283702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 283802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 283902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 284002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isInvalid()) { 284102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr 284202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor = D.getDeclSpec().getAttributes().getList(); 284302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 284402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 284502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 284602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 284702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 284802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 284902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 285002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 285102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isValid()) { 285202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // The ownership attributes are almost always written via 285302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // the predefined 285402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // __strong/__weak/__autoreleasing/__unsafe_unretained. 285502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isMacroID()) 285602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = S.SourceMgr.getImmediateExpansionRange(AttrLoc).first; 285702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 285802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor S.Diag(AttrLoc, diag::warn_arc_lifetime_result_type) 285902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor << T.getQualifiers().getObjCLifetime(); 286002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 286102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 286202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 28638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2864402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2865402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2866b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 28675e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 28688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2869402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2870402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2871402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 28723cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 28733cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2874162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 28758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 28763e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 28773e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 28783cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 2879b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If we see "T var();" or "T var(T());" at block scope, it is probably 2880b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // an attempt to initialize a variable, not a function declaration. 2881b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (FTI.isAmbiguous) 2882b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith warnAboutAmbiguousFunction(S, D, DeclType, T); 2883b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2884ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FunctionType::ExtInfo EI(getCCForDeclaratorChunk(S, D, FTI, chunkIndex)); 2885ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 28868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 28872865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 2888ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Context.getFunctionNoProtoType(T, EI); 28892865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 28902865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 28912865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 28922865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 28938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2894965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2895965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2896965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 28978e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Attrs->getKind() == AttributeList::AT_Overloadable) { 2898965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2899965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2900965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2901965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2902965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2903965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 29048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2905c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 29062865474261a608c7873b87ba4af110d17907896dJohn McCall 29072865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2908788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2909788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 29108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 29112865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 2912d5668a2447c2afeea38815b51a80a5a6ac235599Argyrios Kyrtzidis // Recover by creating a K&R-style function type. 2913ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Context.getFunctionNoProtoType(T, EI); 29142865474261a608c7873b87ba4af110d17907896dJohn McCall break; 29152865474261a608c7873b87ba4af110d17907896dJohn McCall } 29162865474261a608c7873b87ba4af110d17907896dJohn McCall 2917e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2918ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner EPI.ExtInfo = EI; 2919e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 292054655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith EPI.HasTrailingReturn = FTI.hasTrailingReturnType(); 2921e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2922c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2923c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2924c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 292591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 29265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 29275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 29285f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 29292865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 29301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29315f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2932f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2933f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2934f85e193739c953358c865005855253af4f68a497John McCall 29355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2936d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 2937c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ArgTy = Param->getType(); 293878c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 29392dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 29405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 29415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 294272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 29432dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 29445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 29455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 29465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 29475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 29488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 29492ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 29508123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 29512ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 29522ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 29538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 29544565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 29552ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 29568123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 29572ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 29582ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 29590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 29608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 29611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29622ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 29632ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 29642ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2965aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2966aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2967aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 296819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 296919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 297019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 297119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_opencl_half_argument) << ArgTy; 297219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 29739dd74c5504c743c96ea3a1d691d6a75ec3a98147John McCall Param->setInvalidDecl(); 297419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 297519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 297619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 297719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 0; 297819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 297919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2980eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2981eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2982a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2983eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2984183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2985eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2986eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2987eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2988eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2989eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 29905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 299156a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 29928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2993f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2994f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2995f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2996f85e193739c953358c865005855253af4f68a497John McCall } 2997f85e193739c953358c865005855253af4f68a497John McCall 299854e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 29995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3000465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 3001f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 3002f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 3003f85e193739c953358c865005855253af4f68a497John McCall 30045f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 300574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<ParsedType, 2> DynamicExceptions; 300674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<SourceRange, 2> DynamicExceptionRanges; 300774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Expr *NoexceptExpr = 0; 300891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 30098b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 301074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // FIXME: It's rather inefficient to have to split into two vectors 301174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // here. 301274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor unsigned N = FTI.NumExceptions; 301374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.reserve(N); 301474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.reserve(N); 301574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor for (unsigned I = 0; I != N; ++I) { 301674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.push_back(FTI.Exceptions[I].Ty); 301774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); 3018e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 30198b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 302074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr = FTI.NoexceptExpr; 302174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor } 302291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 302374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor S.checkExceptionSpecification(FTI.getExceptionSpecType(), 302474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 302574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 302674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr, 302774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Exceptions, 302874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor EPI); 302991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3030bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose T = Context.getFunctionType(T, ArgTys, EPI); 30315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 303204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 30335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 30345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3035f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 3036f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 30377bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 3038f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 30397bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 3040edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 3041edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 30428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 30438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 30441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 30457bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 304687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 304787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 304887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 30497bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 30504a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 305187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 305287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 305387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 305414aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 305587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 30569f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 30577bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 305887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 305987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 306087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 306191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 306291ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 306391ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 306491ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 306591ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 306691ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 30677bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 306887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 306987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 3070f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 30718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 3072949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 3073949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 3074949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 3075f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 3076f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3077f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 3078949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 30798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 3080949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 3081f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 3082949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 30832865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 30848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 3085f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3086f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 3087f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3088f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 3089cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 3090cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 3091cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 3092cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 3093cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 3094c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 3095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 3096f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclChunk, attrs); 30975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3098971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 30998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 3100183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 3101778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 3102971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 310391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // C++ 8.3.5p4: 3104708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 3105708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 3106708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 3107708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 3108683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 3109683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 3110683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 3111613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 3112613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 3113906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 3114906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 3115613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 3116613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 31178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 3118613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 3119613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 3120613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 3121d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.fct]p6 (w/DR1417): 3122d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // An attempt to specify a function type with a cv-qualifier-seq or a 3123d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // ref-qualifier (including by typedef-name) is ill-formed unless it is: 3124d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type for a non-static member function, 3125d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type to which a pointer to member refers, 3126d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the top-level function type of a function typedef declaration or 3127d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // alias-declaration, 3128d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id in the default argument of a type-parameter, or 3129d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id of a template-argument for a type-parameter 3130d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction && 3131d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !(!FreeFunction && 3132d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static) && 3133d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !IsTypedefName && 3134d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getContext() != Declarator::TemplateTypeArgContext) { 313596a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation Loc = D.getLocStart(); 3136d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceRange RemovalRange; 3137d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith unsigned I; 3138d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (D.isFunctionDeclarator(I)) { 3139d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SmallVector<SourceLocation, 4> RemovalLocs; 3140d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith const DeclaratorChunk &Chunk = D.getTypeObject(I); 3141d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(Chunk.Kind == DeclaratorChunk::Function); 3142d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.hasRefQualifier()) 3143d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); 3144d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Const) 3145d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getConstQualifierLoc()); 3146d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Volatile) 3147d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getVolatileQualifierLoc()); 3148d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // FIXME: We do not track the location of the __restrict qualifier. 3149d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith //if (Chunk.Fun.TypeQuals & Qualifiers::Restrict) 3150d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // RemovalLocs.push_back(Chunk.Fun.getRestrictQualifierLoc()); 3151d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!RemovalLocs.empty()) { 3152d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::sort(RemovalLocs.begin(), RemovalLocs.end(), 3153aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko BeforeThanCompare<SourceLocation>(S.getSourceManager())); 3154d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); 3155d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Loc = RemovalLocs.front(); 3156683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3157683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3158d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3159d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(Loc, diag::err_invalid_qualified_function_type) 3160d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FreeFunction << D.isFunctionDeclarator() << T 3161d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(FnTy) 3162d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FixItHint::CreateRemoval(RemovalRange); 3163d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3164d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Strip the cv-qualifiers and ref-qualifiers from the type. 3165d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 3166d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.TypeQuals = 0; 3167d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.RefQualifier = RQ_None; 3168d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 31690567a79130a251bf464ce21ecf3f8b9fb5207900Reid Kleckner T = Context.getFunctionType(FnTy->getResultType(), FnTy->getArgTypes(), 3170bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose EPI); 3171e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith // Rebuild any parens around the identifier in the function type. 3172e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 3173e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith if (D.getTypeObject(i).Kind != DeclaratorChunk::Paren) 3174e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith break; 3175e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith T = S.BuildParenType(T); 3176e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith } 3177971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 3178971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 31791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 3181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 3182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 3183f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclName, attrs); 3184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 3186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 3187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3188148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 3189148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 319091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // as const. 3191148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 3192737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 3193737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 3194737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 319591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If there was an ellipsis in the declarator, the declaration declares a 3196a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 3197a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 3198a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 319991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // A declarator-id or abstract-declarator containing an ellipsis shall 3200a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 3201a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 3202a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 3203a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 3204fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali case Declarator::LambdaExprParameterContext: 3205a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 320691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // [...] When it is part of a parameter-declaration-clause, the 320791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // parameter pack is a function parameter pack (14.5.3). The type T 3208a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 320991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // a template parameter pack; each template parameter pack in T is 3210a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 3211a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3212a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 3213a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 3214a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 321591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(D.getEllipsisLoc(), 3216a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 3217a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 3218a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3219a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 322066874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3221a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3222a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 3223a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 3224a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 322591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a template-parameter is a [...] is a parameter-declaration that 3226a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 3227a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 3228a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3229a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 3230a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 3231a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 3232a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 323366874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3234e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 3235e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 323680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith LangOpts.CPlusPlus11 3237e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 3238e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 3239a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 324091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3241a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 3242a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 3243cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 3244cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 3245a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 32460b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 3247162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 32483e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 3249a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 3250a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 3251a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 3252a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 3253a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 325417b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 3255a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 3256f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 325714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 32587796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 3259683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 3260a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 3261a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 32628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 3263a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3264a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 3265a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3266a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3267e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 3268bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 3269bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 3270bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 3271bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 3272db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 32738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 32748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 32758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 32778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 32788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 32798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 32808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 32818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 32828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 32838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 32848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 32868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 32888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 32898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 32908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 32918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32924e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount) 32938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 329491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 32958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 32965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 32975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 329831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 329931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 330031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 330131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 330231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 330331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 330431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 330531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 330631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 330731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 330831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 330931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 331031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 331131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 331231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 331331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 331431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 331531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 331631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 331731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 331831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 33198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 332031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 332131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 332231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 332331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 33243026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 332531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 332631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 332731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 332831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 332931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 333031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 3331624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierLoc *Arg = new (S.Context) IdentifierLoc; 3332624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Arg->Ident = &S.Context.Idents.get(attrStr); 3333624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Arg->Loc = SourceLocation(); 3334624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 3335624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman ArgsUnion Args(Arg); 3336624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 333731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 333831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 333931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 334031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 334131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 3342624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman /*args*/ &Args, 1, AttributeList::AS_GNU); 334331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 334431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 334531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 334631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 334731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 334848d798ce32447607144db70a484cdb99c1180663Benjamin Kramer/// \brief Used for transferring ownership in casts resulting in l-values. 334931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 335031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 335131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 335231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 335331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 335431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 335531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 33566ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 335731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 335831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 335931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 336031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 336131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 336231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 336331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 336431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 336531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 336631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 33676ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 33686ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 336931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 337031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 337131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 337231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 33736ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 33746ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 33756ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 337631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 337731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 337831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 337931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 338031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 338131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 338231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 338331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 33846ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 338531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 338691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier DeclaratorChunk &chunk = D.getTypeObject(inner); 338731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 338831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 338931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 33906ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 339131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 339231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 339331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 339431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 339531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 339631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 339731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 339831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 339931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 340031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 340131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 340231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 340331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 340431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 340531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 340631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 34074e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 340831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 340931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 341031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 341131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 341231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 341331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 341431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 341531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 341614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 341714aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 341814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 341914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 34208e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_AddressSpace; 342114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 34228e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Regparm; 342314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 34248e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_VectorSize; 342514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 34268e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonVectorType; 342714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 34288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonPolyVectorType; 342914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 34308e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCGC; 3431b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 34328e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCOwnership; 343314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 34348e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NoReturn; 343514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 34368e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_CDecl; 343714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 34388e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_FastCall; 343914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 34408e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_StdCall; 344114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 34428e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ThisCall; 344314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 34448e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pascal; 3445414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 34465b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributedType::attr_pcs_vfp: 34478e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pcs; 3448263366f9241366f29ba65b703120f302490c39ffDerek Schuff case AttributedType::attr_pnaclcall: 3449263366f9241366f29ba65b703120f302490c39ffDerek Schuff return AttributeList::AT_PnaclCall; 345038980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei case AttributedType::attr_inteloclbicc: 345138980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei return AttributeList::AT_IntelOclBicc; 3452e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributedType::attr_ms_abi: 3453e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributeList::AT_MSABI; 3454e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributedType::attr_sysv_abi: 3455e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributeList::AT_SysVABI; 3456aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr32: 3457aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr32; 3458aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr64: 3459aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr64; 3460aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_sptr: 3461aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_SPtr; 3462aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_uptr: 3463aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_UPtr; 346414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 346514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 346614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 346714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 346814aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 346914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 347014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 347114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 347214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 347314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 347414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 347514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 347614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 347714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 347814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 347914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 3480624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (TL.hasAttrExprOperand() && attrs->isArgExpr(0)) 3481624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman TL.setAttrExprOperand(attrs->getArgAsExpr(0)); 3482624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (TL.hasAttrEnumOperand() && attrs->isArgIdent(0)) 3483624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman TL.setAttrEnumOperandLoc(attrs->getArgAsIdent(0)->Loc); 348414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 348514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 348614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 348714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 348814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 348914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 349051bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 349151bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 3492c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 349351bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 3494f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 349551bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 349691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 3497c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 3498f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 349914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 350014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 350114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 350214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 350351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 350451bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 350551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 350651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 350751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 350851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 350951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 351051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 35111de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // FIXME. We should have DS.getTypeSpecTypeEndLoc(). But, it requires 35121de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // addition field. What we have is good enough for dispay of location 35131de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // of 'fixit' on interface name. 35141de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian TL.setNameEndLoc(DS.getLocEnd()); 3515c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 3516c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 3517c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 3518c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 3519c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 3520c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 3521c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 3522c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 3523c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 3524c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 352554e14c4db764c0636160d26c5bbf491637c83a76John McCall 3526c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 352754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 352854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 352954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 353054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 353154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 353254e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 353354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 353454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 353554e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 353654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 353754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 353854e14c4db764c0636160d26c5bbf491637c83a76John McCall } 353951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 354054e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 354154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 3542c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 354351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 3544833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 3545a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 3546b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3547833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3548833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 3549833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 3550a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 35510daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 3552833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 3553833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3554833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3555e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 3556e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 355739e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ElabTL = OldTL.castAs<ElaboratedTypeLoc>(); 355839e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TemplateSpecializationTypeLoc NamedTL = ElabTL.getNamedTypeLoc() 355939e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie .castAs<TemplateSpecializationTypeLoc>(); 3560e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 356144ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } else { 356239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(OldTL.castAs<TemplateSpecializationTypeLoc>()); 356344ee0a710c59d8e6793189f903bae21c16814324Eli Friedman assert(TL.getRAngleLoc() == OldTL.castAs<TemplateSpecializationTypeLoc>().getRAngleLoc()); 356444ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } 356544ee0a710c59d8e6793189f903bae21c16814324Eli Friedman 3566833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3567cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 3568cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 3569cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3570cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3571cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3572cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 3573cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 3574cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3575cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3576b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 3577cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 3578b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3579cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 3580cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3581ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 3582ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 3583ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 3584ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3585ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 3586ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 3587ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 3588ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3589ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 3590ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3591ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 3592ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 3593ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 3594ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 3595ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 3596ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 3597ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 3598ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 3599ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 3600ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 3601ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 3602ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 3603ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 3604ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3605ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3606e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 3607e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 3608e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 3609253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 3610e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 3611b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3612e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 361339e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<ElaboratedTypeLoc>()); 3614e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 3615e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3616e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 361738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara TL.setElaboratedKeywordLoc(Keyword != ETK_None 361838a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ? DS.getTypeSpecTypeLoc() 361938a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara : SourceLocation()); 3620e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 36219e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 3622e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 3623e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3624e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 362566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 362666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 362766581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 362866581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 362939e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<DependentNameTypeLoc>()); 363033500955d731c73717af52088b7fc0e7a85681e7John McCall } 363133500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 363233500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 363366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 363466581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 363566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 363666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 363739e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy( 363839e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TInfo->getTypeLoc().castAs<DependentTemplateSpecializationTypeLoc>()); 36390daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 36400daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 36410daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 3642e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3643b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 36444cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc can come from either an _Atomic(...) type specifier 36454cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // or an _Atomic qualifier. 36464cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (DS.getTypeSpecType() == DeclSpec::TST_atomic) { 36474cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getTypeSpecTypeLoc()); 36484cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(DS.getTypeofParensRange()); 364991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 36504cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeSourceInfo *TInfo = 0; 36514cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 36524cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert(TInfo); 36534cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 36544cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } else { 36554cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getAtomicSpecLoc()); 36564cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No parens, to indicate this was spelled as an _Atomic qualifier. 36574cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(SourceRange()); 36584cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Visit(TL.getValueLoc()); 36594cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 3660b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 3661e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 366251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 366351bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 3664c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 366551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 366651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 3667eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 366851bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 3669b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 367051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 3671f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 367251bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 3673b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 3674b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 36754adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 367651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 36779f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 367851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 367912df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner void VisitDecayedTypeLoc(DecayedTypeLoc TL) { 368012df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner llvm_unreachable("decayed type locs not expected here!"); 368112df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner } 36824adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3683f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3684f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3685f85e193739c953358c865005855253af4f68a497John McCall } 368651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 368751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 368851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 36894adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 369051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 369151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 369251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 36934adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 369451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 369551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 369651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 36974adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 369851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 369951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3700b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3701b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3702b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3703b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3704b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3705b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3706b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3707b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3708b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3709b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3710b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3711b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 371239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie DependentNameTypeLoc DNTLoc = ClsTL.castAs<DependentNameTypeLoc>(); 371338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara DNTLoc.setElaboratedKeywordLoc(SourceLocation()); 3714b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3715b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3716b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3717b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3718b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3719b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3720b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3721b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 372239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ETLoc = ClsTL.castAs<ElaboratedTypeLoc>(); 372338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ETLoc.setElaboratedKeywordLoc(SourceLocation()); 3724b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3725b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3726b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3727b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3728b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3729b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3730b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3731b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3732b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3733b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3734b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3735b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3736b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3737b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3738b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 373951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3740b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 37414adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 374251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 374351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 374454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 374554e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 374651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 374751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 374851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 374951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 375051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 375151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 375251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 375351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 375451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 375551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 375651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 375751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 375851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 375951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 376051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3761796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3762796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 376351bd803fbdade51d674598ed45da3d54190a656cJohn McCall 376451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 376559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setLParenLoc(FTI.getLParenLoc()); 376659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setRParenLoc(FTI.getRParenLoc()); 376754e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3768d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 376954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 37704adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 377151bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 37724adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3773075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3774075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3775075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3776075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3777075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 37781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 377951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 37809f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 37814adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 378251bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 378351bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 37844adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 37854cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smithstatic void fillAtomicQualLoc(AtomicTypeLoc ATL, const DeclaratorChunk &Chunk) { 37864cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SourceLocation Loc; 37874cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith switch (Chunk.Kind) { 37884cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Function: 37894cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Array: 37904cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Paren: 37914cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith llvm_unreachable("cannot be _Atomic qualified"); 37924cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37934cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Pointer: 37944cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Loc = SourceLocation::getFromRawEncoding(Chunk.Ptr.AtomicQualLoc); 37954cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 37964cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37974cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::BlockPointer: 37984cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Reference: 37994cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::MemberPointer: 38004cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // FIXME: Provide a source location for the _Atomic keyword. 38014cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 38024cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 38034cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 38044cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setKWLoc(Loc); 38054cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setParensRange(SourceRange()); 38064cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 38074cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 3808a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 380951bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 381051bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 381105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 381205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 381305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 381405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 381505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3816a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 381705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 381805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3819a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3820a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 382151bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3822a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3823a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 382439e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie CurrTL.castAs<PackExpansionTypeLoc>().setEllipsisLoc(D.getEllipsisLoc()); 382591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3826a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 382791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 38288ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 38294cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc might be produced by an atomic qualifier in this 38304cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // declarator chunk. 38314cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (AtomicTypeLoc ATL = CurrTL.getAs<AtomicTypeLoc>()) { 38324cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith fillAtomicQualLoc(ATL, D.getTypeObject(i)); 38334cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith CurrTL = ATL.getValueLoc().getUnqualifiedLoc(); 38344cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 38354cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 383639e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie while (AttributedTypeLoc TL = CurrTL.getAs<AttributedTypeLoc>()) { 383714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 383814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 383914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 384014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3841b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 384251bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 38434adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 384491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3845b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3846b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3847b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 384805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 384905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 385005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3851b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3852c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 385305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 385491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3855a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 38564adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 38574adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3858a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3859b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 38601bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 38611bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 38621bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 386391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3864eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3865a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 38661bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 38671bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3868b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 38691bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 38701bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 38711bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 38721bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3873b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 387435d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 387535d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 38761bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 38771bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3878f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 38795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 38805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 38815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 38821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3883d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3884bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 38855153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3886809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 38875912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3888e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3889cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3890cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 38916b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Likewise, we don't want to do this for alias declarations, because 38926b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // we are actually going to build a declaration from this eventually. 38936b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith if (D.getContext() != Declarator::ObjCParameterContext && 38946b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasDeclContext && 38956b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasTemplateContext) 3896cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3897e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 38984e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 3899402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 39006d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3901402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3902402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3903b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 39045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 39055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3906e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3907e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3908e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3909e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3910e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3911e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3912e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3913c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3914c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3915c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3916232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3917232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3918c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3919c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 39201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3921c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 39220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3923232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 392429e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 392529e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3926232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3927c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3928e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3929c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3930232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 39311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3932020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3933020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3934020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3935020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3936020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3937020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3938020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3939020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3940232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3941545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3942baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 3943baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 3944e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3945c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3946232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3947624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *ASArgExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 3948232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3949ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3950ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 39519f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 39529f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 39539f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ASArgExpr->getSourceRange(); 3954e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3955c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3956232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3957232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3958efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3959efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3960efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3961efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3962efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3963e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3964efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3965efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3966efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3967efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3968efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 39690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3970efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3971efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 39727348454025693dd20a411c2bcaabd4460cb87559Joerg Sonnenberger << int(Qualifiers::MaxAddressSpace) << ASArgExpr->getSourceRange(); 3973e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3974efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3975efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3976efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 39771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3978f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3979c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3980c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3981d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// Does this type have a "direct" ownership qualifier? That is, 3982d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// is it written like "__strong id", as opposed to something like 3983d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// "typeof(foo)", where that happens to be strong? 3984d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCallstatic bool hasDirectOwnershipQualifier(QualType type) { 3985d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Fast path: no qualifier at all. 3986d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall assert(type.getQualifiers().hasObjCLifetime()); 3987d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3988d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (true) { 3989d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // __strong id 3990d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (const AttributedType *attr = dyn_cast<AttributedType>(type)) { 3991d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (attr->getAttrKind() == AttributedType::attr_objc_ownership) 3992d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3993d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3994d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = attr->getModifiedType(); 3995d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3996d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // X *__strong (...) 3997d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else if (const ParenType *paren = dyn_cast<ParenType>(type)) { 3998d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = paren->getInnerType(); 399991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4000d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // That's it for things we want to complain about. In particular, 4001d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // we do not want to look through typedefs, typeof(expr), 4002d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // typeof(type), or any other way that the type is somehow 4003d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // abstracted. 4004d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else { 400591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4006d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return false; 4007d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4008d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4009d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall} 4010d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4011b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 4012f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 4013f85e193739c953358c865005855253af4f68a497John McCall/// 4014f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 4015b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 4016f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 4017f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 4018e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 4019e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 4020dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!type->isDependentType() && !type->isUndeducedType()) { 4021e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 4022e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 4023e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 4024e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 4025e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 4026e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 4027e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 4028e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 4029e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 4030e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 4031e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4032b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 4033b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Don't accept an ownership attribute in the declspec if it would 4034b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // just be the return type of a block pointer. 4035b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec()) { 4036b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall Declarator &D = state.getDeclarator(); 4037b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (maybeMovePastReturnType(D, D.getNumTypeObjects())) 4038b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return false; 4039b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 4040e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4041f85e193739c953358c865005855253af4f68a497John McCall 4042f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 4043440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 4044440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 4045440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 4046f85e193739c953358c865005855253af4f68a497John McCall 4047624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (!attr.isArgIdent(0)) { 40483cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(AttrLoc, diag::err_attribute_argument_type) 40493cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 4050f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4051f85e193739c953358c865005855253af4f68a497John McCall return true; 4052f85e193739c953358c865005855253af4f68a497John McCall } 4053f85e193739c953358c865005855253af4f68a497John McCall 4054d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Consume lifetime attributes without further comment outside of 4055d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // ARC mode. 40564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().ObjCAutoRefCount) 4057d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 4058d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4059624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; 4060f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 4061624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (II->isStr("none")) 4062f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 4063624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("strong")) 4064f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 4065624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("weak")) 4066f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 4067624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("autoreleasing")) 4068f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 4069f85e193739c953358c865005855253af4f68a497John McCall else { 4070440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 4071d068607c136298bec0891d750389a55bac9f5c98Aaron Ballman << attr.getName() << II; 4072f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4073f85e193739c953358c865005855253af4f68a497John McCall return true; 4074f85e193739c953358c865005855253af4f68a497John McCall } 4075f85e193739c953358c865005855253af4f68a497John McCall 4076d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall SplitQualType underlyingType = type.split(); 4077d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4078d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Check for redundant/conflicting ownership qualifiers. 4079d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (Qualifiers::ObjCLifetime previousLifetime 4080d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall = type.getQualifiers().getObjCLifetime()) { 4081d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // If it's written directly, that's an error. 4082d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (hasDirectOwnershipQualifier(type)) { 4083d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 4084d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall << type; 4085d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 4086d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4087d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4088d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Otherwise, if the qualifiers actually conflict, pull sugar off 4089d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // until we reach a type that is directly qualified. 4090d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (previousLifetime != lifetime) { 4091d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // This should always terminate: the canonical type is 4092d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // qualified, so some bit of sugar must be hiding it. 4093d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (!underlyingType.Quals.hasObjCLifetime()) { 4094d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType = underlyingType.getSingleStepDesugaredType(); 4095d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4096d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.removeObjCLifetime(); 4097d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4098d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4099d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4100d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.addObjCLifetime(lifetime); 4101f85e193739c953358c865005855253af4f68a497John McCall 4102e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 4103e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 4104e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 4105e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 4106e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 4107e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 4108e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 4109e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 4110e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 4111e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4112fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman S.Diag(AttrLoc, diag::warn_type_attribute_wrong_type) << name 4113fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman << TDS_ObjCObjOrBlock << type; 4114e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4115e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 4116f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 4117e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 4118d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = S.Context.getQualifiedType(underlyingType); 4119f85e193739c953358c865005855253af4f68a497John McCall 4120f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 4121f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 4122440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 4123b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 4124f85e193739c953358c865005855253af4f68a497John McCall origType, type); 4125f85e193739c953358c865005855253af4f68a497John McCall 41269f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 4127f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 41280a7dd788dbef975f35f273c7ab913f480f7edd60John McCall !S.getLangOpts().ObjCARCWeak && !NonObjCPointer) { 4129f85e193739c953358c865005855253af4f68a497John McCall 4130f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 4131f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 4132f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 4133440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 4134440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 4135f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 4136f85e193739c953358c865005855253af4f68a497John McCall } else { 4137440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 4138f85e193739c953358c865005855253af4f68a497John McCall } 4139f85e193739c953358c865005855253af4f68a497John McCall 4140f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4141f85e193739c953358c865005855253af4f68a497John McCall return true; 4142f85e193739c953358c865005855253af4f68a497John McCall } 414391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 414491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Forbid __weak for class objects marked as 4145742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 4146742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 4147b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (const ObjCObjectPointerType *ObjT = 4148b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall type->getAs<ObjCObjectPointerType>()) { 41494e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl()) { 41504e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (Class->isArcWeakrefUnavailable()) { 41514e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 41524e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(ObjT->getInterfaceDecl()->getLocation(), 41534e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith diag::note_class_declared); 41544e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith } 4155742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4156742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4157742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 415891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4159f85e193739c953358c865005855253af4f68a497John McCall return true; 4160f85e193739c953358c865005855253af4f68a497John McCall} 4161f85e193739c953358c865005855253af4f68a497John McCall 4162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 4163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 4164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 4165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 4166711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 4167711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 4172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 4173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 4174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 4175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4177711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 4178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 4179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4181d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 4182624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 4183d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 4184624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (!attr.isArgIdent(0)) { 41853cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_argument_type) 41863cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 4187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4189ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 41900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 4191624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (attr.getNumArgs() > 1) { 4192baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4193baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << attr.getName() << 1; 4194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4196d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 4197624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 4198624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; 4199624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (II->isStr("weak")) 42000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 4201624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("strong")) 42020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 4203d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 4204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 4205d068607c136298bec0891d750389a55bac9f5c98Aaron Ballman << attr.getName() << II; 4206711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4207711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4208d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 42091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 421014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 421114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 421214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 421314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 421414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 421514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 421614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 421714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 4218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4219d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 4220d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 4221e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 4222e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 4223e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 4224e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 4225e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 4226e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 4227e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 4228e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 4229e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 4230e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 4231e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 4232e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 4233e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 4234e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 4235e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 4236e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 4237e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 4238e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 4239e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 4240e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4241e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4242e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 4243e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 42445f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 4245e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4246e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 4247e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 4248e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 4249e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 4250e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 4251e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4252e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 4253e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 4254e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 4255e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 4256e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 4257e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 4258e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 4259e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 4260e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 4261e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 4262e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 4263e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 4264e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 4265e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 4266e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 4267e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 4268e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 4269e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 4270e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 4271e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4272e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4273e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4274e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 4275e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 4276e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4277e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4278e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4279e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4280e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 4281e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 4282e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4283e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 4284e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 4285e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 4286e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4287e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 4288e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 4289e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4290e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4291e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 4292e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 4293e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 4294e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 4295e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4296e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 4297e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 4298e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 4299e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4300e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 4301200fa53fd420aa8369586f569dbece04930ad6a3John McCall if (SplitOld.Quals.empty()) 4302200fa53fd420aa8369586f569dbece04930ad6a3John McCall return wrap(C, SplitOld.Ty, I); 4303200fa53fd420aa8369586f569dbece04930ad6a3John McCall return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); 4304e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4305e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4306e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 4307e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 4308e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4309e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 4310e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 4311e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 4312e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 4313e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 4314e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4315e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 4316e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 4317e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 4318e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4319e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4320e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 4321e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 4322e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 4323e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4324e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4325e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 4326e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 4327e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 4328e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4329e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4330e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 4331e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 4332e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 4333e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 4334e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4335e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4336e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 4337e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 4338e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 4339e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 4340e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 4341e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 4342e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 4343e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4344e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4345e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4346e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 4347e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4348e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4349e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 4350e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4351aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballmanstatic bool handleMSPointerTypeQualifierAttr(TypeProcessingState &State, 4352aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList &Attr, 4353aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType &Type) { 4354aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Sema &S = State.getSema(); 4355aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4356aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList::Kind Kind = Attr.getKind(); 4357aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType Desugared = Type; 4358aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman const AttributedType *AT = dyn_cast<AttributedType>(Type); 4359aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman while (AT) { 4360aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind CurAttrKind = AT->getAttrKind(); 4361aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4362aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot specify duplicate type attributes, so if the attribute has 4363aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // already been applied, flag it. 4364aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (getAttrListKind(CurAttrKind) == Kind) { 4365aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::warn_duplicate_attribute_exact) 4366aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << Attr.getName(); 4367aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4368aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4369aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4370aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot have both __sptr and __uptr on the same type, nor can you 4371aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // have __ptr32 and __ptr64. 4372aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if ((CurAttrKind == AttributedType::attr_ptr32 && 4373aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr64) || 4374aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_ptr64 && 4375aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr32)) { 4376aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4377aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__ptr32'" << "'__ptr64'"; 4378aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4379aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } else if ((CurAttrKind == AttributedType::attr_sptr && 4380aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_UPtr) || 4381aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_uptr && 4382aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_SPtr)) { 4383aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4384aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__sptr'" << "'__uptr'"; 4385aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4386aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4387aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4388aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Desugared = AT->getEquivalentType(); 4389aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AT = dyn_cast<AttributedType>(Desugared); 4390aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4391aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4392aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // Pointer type qualifiers can only operate on pointer types, but not 4393aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // pointer-to-member types. 4394aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!isa<PointerType>(Desugared)) { 4395aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), Type->isMemberPointerType() ? 4396aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_no_member_pointers : 4397aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_pointers_only) << Attr.getName(); 4398aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4399aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4400aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4401aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind TAK; 4402aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman switch (Kind) { 4403aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman default: llvm_unreachable("Unknown attribute kind"); 4404aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr32: TAK = AttributedType::attr_ptr32; break; 4405aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr64: TAK = AttributedType::attr_ptr64; break; 4406aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_SPtr: TAK = AttributedType::attr_sptr; break; 4407aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_UPtr: TAK = AttributedType::attr_uptr; break; 4408aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4409aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4410aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Type = S.Context.getAttributedType(TAK, Type, Type); 4411aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return false; 4412aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman} 4413aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 44145b92696c8f1f8ef943ad87397b95c031b5787305Reid Klecknerstatic AttributedType::Kind getCCTypeAttrKind(AttributeList &Attr) { 44155b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner assert(!Attr.isInvalid()); 44165b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner switch (Attr.getKind()) { 44175b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner default: 44185b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("not a calling convention attribute"); 44195b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_CDecl: 44205b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_cdecl; 44215b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_FastCall: 44225b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_fastcall; 44235b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_StdCall: 44245b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_stdcall; 44255b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_ThisCall: 44265b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_thiscall; 44275b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pascal: 44285b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pascal; 44295b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pcs: { 4430fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // The attribute may have had a fixit applied where we treated an 4431fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // identifier as a string literal. The contents of the string are valid, 4432fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // but the form may not be. 4433fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman StringRef Str; 4434fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman if (Attr.isArgExpr(0)) 4435fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman Str = cast<StringLiteral>(Attr.getArgAsExpr(0))->getString(); 4436fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman else 4437fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman Str = Attr.getArgAsIdent(0)->Ident->getName(); 4438fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman return llvm::StringSwitch<AttributedType::Kind>(Str) 44395b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs", AttributedType::attr_pcs) 44405b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs-vfp", AttributedType::attr_pcs_vfp); 44415b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 44425b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_PnaclCall: 44435b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pnaclcall; 44445b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_IntelOclBicc: 44455b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_inteloclbicc; 4446e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_MSABI: 4447e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributedType::attr_ms_abi; 4448e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_SysVABI: 4449e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributedType::attr_sysv_abi; 44505b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 44515b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("unexpected attribute kind!"); 44525b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner} 44535b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner 4454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 4455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 4456711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 4457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4460e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 44622455636163fdd18581d7fdae816433f886d88213Mike Stump 44638e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NoReturn) { 4464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 446504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 4466e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4467e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 4468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4470425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4471425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 4472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 4473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 4476425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4477f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 4478f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 44798e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NSReturnsRetained) { 44804e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(S.getLangOpts().ObjCAutoRefCount && 4481f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 4482f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 4483f85e193739c953358c865005855253af4f68a497John McCall 4484f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 4485f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 4486f85e193739c953358c865005855253af4f68a497John McCall return false; 4487f85e193739c953358c865005855253af4f68a497John McCall 4488f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 4489f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 4490f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4491f85e193739c953358c865005855253af4f68a497John McCall return true; 4492f85e193739c953358c865005855253af4f68a497John McCall } 4493f85e193739c953358c865005855253af4f68a497John McCall 44948e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_Regparm) { 4495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 4496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 4497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 44981e030eb1194763b42c1752723be23b1515f48981John McCall 4499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 4500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4501008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 45021e030eb1194763b42c1752723be23b1515f48981John McCall 4503ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 4504ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 4505ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 4506ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 4507ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4508ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 4509ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 4510ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4511ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4512ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 4513ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 451491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier FunctionType::ExtInfo EI = 4515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 4516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4518425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 4519425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 452082bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman // Delay if the type didn't work out to a function. 452182bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman if (!unwrapped.isFunctionType()) return false; 452282bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman 452304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 4524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 4525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 4526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4527f82b4e85b1219295cad4b5851b035575bc293010John McCall 4528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 4529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 4530ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner AttributedType::Kind CCAttrKind = getCCTypeAttrKind(attr); 453104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 4532e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis if (CCOld != CC) { 4533ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Error out on when there's already an attribute on the type 4534ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // and the CCs don't match. 4535ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const AttributedType *AT = S.getCallingConvAttributedType(type); 4536ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (AT && AT->getAttrKind() != CCAttrKind) { 4537ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4538ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner << FunctionType::getNameForCallConv(CC) 4539ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner << FunctionType::getNameForCallConv(CCOld); 4540ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner attr.setInvalid(); 4541ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return true; 4542ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 454304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 454404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 454504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 454604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 4547711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 4548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 454904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 455204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 455304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 4554711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 455504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 4556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 455704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4558711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 456004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4561ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 4562ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 4563a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 4564ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4565ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 4566ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 4567ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4568ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4569ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 457004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4571f82b4e85b1219295cad4b5851b035575bc293010John McCall 45725b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // Modify the CC from the wrapped function type, wrap it all back, and then 45735b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // wrap the whole thing in an AttributedType as written. The modified type 45745b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // might have a different CC if we ignored the attribute. 4575711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 45765b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner QualType Equivalent = 45775b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4578ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner type = S.Context.getAttributedType(CCAttrKind, type, Equivalent); 4579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4580f82b4e85b1219295cad4b5851b035575bc293010John McCall} 4581f82b4e85b1219295cad4b5851b035575bc293010John McCall 4582d1a32c328bce903fb1b17fc8147b646be818298eReid Klecknervoid Sema::adjustMemberFunctionCC(QualType &T, bool IsStatic) { 4583ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const FunctionType *FT = T->castAs<FunctionType>(); 4584ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool IsVariadic = (isa<FunctionProtoType>(FT) && 4585ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner cast<FunctionProtoType>(FT)->isVariadic()); 4586ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner CallingConv CC = FT->getCallConv(); 4587d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner 4588d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner // Only adjust types with the default convention. For example, on Windows we 4589d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner // should adjust a __cdecl type to __thiscall for instance methods, and a 4590d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner // __thiscall type to __cdecl for static methods. 4591ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner CallingConv DefaultCC = 4592d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner Context.getDefaultCallingConvention(IsVariadic, IsStatic); 4593ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (CC != DefaultCC) 4594ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return; 4595ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4596ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Check if there was an explicit attribute, but only look through parens. 4597ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // The intent is to look for an attribute on the current declarator, but not 4598ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // one that came from a typedef. 4599ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner QualType R = T.IgnoreParens(); 4600ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner while (const AttributedType *AT = dyn_cast<AttributedType>(R)) { 4601ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (AT->isCallingConv()) 4602ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return; 4603ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner R = AT->getModifiedType().IgnoreParens(); 4604ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 4605ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4606ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // FIXME: This loses sugar. This should probably be fixed with an implicit 4607ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // AttributedType node that adjusts the convention. 4608d1a32c328bce903fb1b17fc8147b646be818298eReid Kleckner CC = Context.getDefaultCallingConvention(IsVariadic, !IsStatic); 4609ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FT = Context.adjustFunctionType(FT, FT->getExtInfo().withCallingConv(CC)); 4610ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FunctionTypeUnwrapper Unwrapped(*this, T); 4611ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Unwrapped.wrap(*this, FT); 4612ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner} 4613ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4614207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 4615207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 4616207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 4617207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 4618207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 4619207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 4620baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4621baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4622207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4623207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4624207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4625624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *sizeExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 4626207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 4627207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4628207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 46299f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 46309f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 46319f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4632207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4633207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4634207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4635207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 4636207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 4637207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 4638207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 4639207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 4640207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4641207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4642207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 4643207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4644207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 4645207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 4646207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4647207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4648207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4649207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 4650207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 46516e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 46526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 46536e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 46546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 46556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 46566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 46576e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 4658788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 4659788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 466056affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 46616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 4662baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4663baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4664e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 4667624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *sizeExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 46686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 4669ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4670ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 46719f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 46729f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 46739f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4674e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 4677b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman // The base type must be integer (not Boolean or enumeration) or float, and 4678b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman // can't already be a vector. 4679b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman if (!CurType->isBuiltinType() || CurType->isBooleanType() || 46801652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 46816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4682e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46836e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46846e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 46856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 46866e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 46876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 46886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 46896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 46906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 46916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 46926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4693e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 46961652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize / typeSize)) { 46971652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_size_too_large) 46981652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << sizeExpr->getSourceRange(); 46991652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Attr.setInvalid(); 47001652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return; 47011652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 47026e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 47036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 47046e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4705e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 47066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 47076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 47086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 47096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 47106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 4711788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 4712e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 47136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 47146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 47154ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 47164ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 471791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierstatic void HandleExtVectorTypeAttr(QualType &CurType, 471891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier const AttributeList &Attr, 47194ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 4720624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman // check the attribute arguments. 4721624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (Attr.getNumArgs() != 1) { 4722624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4723624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman << Attr.getName() << 1; 4724624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman return; 4725624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman } 4726624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 47274ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 472891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 47294ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 4730624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (Attr.isArgIdent(0)) { 47314ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 4732e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 47334ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 4734624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman id.setIdentifier(Attr.getArgAsIdent(0)->Ident, Attr.getLoc()); 4735e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 4736e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, TemplateKWLoc, 4737e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara id, false, false); 47384ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 47394ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 474091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 47414ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 47424ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 4743624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman sizeExpr = Attr.getArgAsExpr(0); 47444ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 474591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 47464ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 47474ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 47484ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 47494ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 47504ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 47514ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 4752b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northoverstatic bool isPermittedNeonBaseType(QualType &Ty, 4753b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover VectorType::VectorKind VecKind, 4754b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover bool IsAArch64) { 4755b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover const BuiltinType *BTy = Ty->getAs<BuiltinType>(); 4756b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (!BTy) 4757b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return false; 4758b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4759b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (VecKind == VectorType::NeonPolyVector) { 4760b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64) { 4761b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch64 polynomial vectors are unsigned 4762b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::UChar || 4763b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort; 4764b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } else { 4765b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch32 polynomial vector are signed. 4766b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4767b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short; 4768b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4769b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4770b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4771b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // Non-polynomial vector types: the usual suspects are allowed, as well as 4772b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // float64_t on AArch64. 4773b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64 && BTy->getKind() == BuiltinType::Double) 4774b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return true; 4775b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4776b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4777b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UChar || 4778b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short || 4779b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort || 4780b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Int || 4781b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UInt || 4782b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::LongLong || 4783b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::ULongLong || 4784b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Float || 4785b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Half; 4786b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover} 4787b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 47884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 47894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 47904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 47914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 47924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 47934211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 47944211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 47954211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 47964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 47979f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::VectorKind VecKind) { 47982440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson // Target must have NEON 47992440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson if (!S.Context.getTargetInfo().hasFeature("neon")) { 48002440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson S.Diag(Attr.getLoc(), diag::err_attribute_unsupported) << Attr.getName(); 48012440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson Attr.setInvalid(); 48022440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson return; 48032440fb1f91557912f8c43cb72201170254ae09f4Amara Emerson } 48044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 48054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 4806baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4807baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 48084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 48094211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 48104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 48114211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 4812624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *numEltsExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 48134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 48144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 48154211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 48169f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 48179f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 48189f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << numEltsExpr->getSourceRange(); 48194211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 48204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 48214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 48224211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 4823e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover llvm::Triple::ArchType Arch = 4824b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover S.Context.getTargetInfo().getTriple().getArch(); 4825e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover if (!isPermittedNeonBaseType(CurType, VecKind, 4826e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Arch == llvm::Triple::aarch64)) { 4827e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4828e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Attr.setInvalid(); 4829e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover return; 48304211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 4831e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover 48324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 48334211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 48344211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 48354211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 48364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 48374211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 48384211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 48394211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 48404211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 48414211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 48424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 48434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 48444211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 4845711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 4846f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TypeAttrLocation TAL, AttributeList *attrs) { 4847c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 4848c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 4849c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 4850c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 4851711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4852711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 4853711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 4854711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 4855711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 4856711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4857e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 4858711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 4859e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 4860e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 4861cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute()) { 4862cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // [[gnu::...]] attributes are treated as declaration attributes, so may 4863cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // not appertain to a DeclaratorChunk, even if we handle them as type 4864cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // attributes. 4865cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.getScopeName() && attr.getScopeName()->isStr("gnu")) { 4866cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (TAL == TAL_DeclChunk) { 4867cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4868cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_cxx11_gnu_attribute_on_type) 4869cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4870cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4871cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4872cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } else if (TAL != TAL_DeclChunk) { 4873cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // Otherwise, only consider type processing for a C++11 attribute if 4874cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // it's actually been applied to a type. 4875cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4876cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4877f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith } 4878f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith 4879b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 4880b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 4881711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 4882cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith default: 4883cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // A C++11 attribute on a declarator chunk must appertain to a type. 4884d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) { 4885cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), diag::err_attribute_not_type_attr) 4886d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith << attr.getName(); 4887d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4888d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith } 4889cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4890cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4891cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::UnknownAttribute: 4892cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) 4893cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4894cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_unknown_attribute_ignored) 4895cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4896cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4897cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4898cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::IgnoredAttribute: 4899cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 490004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 49018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MayAlias: 4902682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 4903682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 4904682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 4905682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 49068e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AddressSpace: 4907711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 4908e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4909c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 4910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 4911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 4912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 4913e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4914d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 49158e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VectorSize: 4916711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 4917e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4918f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 49198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExtVectorType: 4920a4fa9008988985f9cf01712a99ddd923aea278a0Richard Smith HandleExtVectorTypeAttr(type, attr, state.getSema()); 4921e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 49224ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 49238e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonVectorType: 4924711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 49259f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonVector); 4926e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 49274211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 49288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonPolyVectorType: 4929711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 49309f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonPolyVector); 4931e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 49324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 49338e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLImageAccess: 4934207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 4935e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4936207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4937207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 4938d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith case AttributeList::AT_Win64: 4939d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4940d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith break; 4941aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman MS_TYPE_ATTRS_CASELIST: 4942aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!handleMSPointerTypeQualifierAttr(state, attr, type)) 4943aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman attr.setUsedAsTypeAttr(); 4944aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman break; 4945d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith 49468e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 49474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 4948cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4949f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 4950f85e193739c953358c865005855253af4f68a497John McCall 4951711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 4952e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4953e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4954711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 4955711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 4956f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith if (TAL == TAL_DeclSpec) 4957711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 4958711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4959711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 4960711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 4961711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 49626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 4963c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 4964711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 4965232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 4966232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 4967e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 4968e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4969e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 4970e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 4971e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 4972e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 4973e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 4974e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4975e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 4976d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// \param Diagnoser The object that will emit a diagnostic if the type is 4977d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// incomplete. 4978e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4979e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 4980e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 4981f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, TypeDiagnoser &Diagnoser){ 4982e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 4983e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4984e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 4985e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 498663f25e6719e3920a04f66a80958b792ac268aeddRichard Smith // FIXME: The definition might not be visible. 4987e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 4988e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4989e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 49906aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith // their definitions. For static data members of class templates and for 49916aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith // variable templates, we need to instantiate the definition to get this 49926aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith // initializer and complete the type. 4993e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 4994e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4995e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 49966aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith if (isTemplateInstantiation(Var->getTemplateSpecializationKind())) { 49976aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith SourceLocation PointOfInstantiation = E->getExprLoc(); 499891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 49996aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith if (MemberSpecializationInfo *MSInfo = 50006aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith Var->getMemberSpecializationInfo()) { 500136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 500236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 50036aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith MSInfo->setPointOfInstantiation(PointOfInstantiation); 500491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 500591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // This is a modification of an existing AST node. Notify 500636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 500736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 500836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 500936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 50106aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith } else { 50116aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith VarTemplateSpecializationDecl *VarSpec = 50126aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith cast<VarTemplateSpecializationDecl>(Var); 50136aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith if (VarSpec->getPointOfInstantiation().isInvalid()) 50146aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith VarSpec->setPointOfInstantiation(PointOfInstantiation); 50156aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith } 501691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 50176aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith InstantiateVariableDefinition(PointOfInstantiation, Var); 501891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 50196aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith // Update the type to the newly instantiated definition's type both 50206aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith // here and within the expression. 50216aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith if (VarDecl *Def = Var->getDefinition()) { 50226aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith DRE->setDecl(Def); 50236aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith T = Def->getType(); 50246aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith DRE->setType(T); 50256aa7df9df93bcf2d6399f6e535ef74c132db40ecRichard Smith E->setType(T); 5026f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 502791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5028e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 5029e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 5030e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 5031e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 5032e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 5033e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 5034e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 5035e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 5036e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 5037e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 5038e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 5039e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 5040e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 5041e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 5042e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 5043d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(E->getExprLoc(), T, Diagnoser); 5044d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 5045d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 5046d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregornamespace { 5047f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor struct TypeDiagnoserDiag : Sema::TypeDiagnoser { 5048d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor unsigned DiagID; 504991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5050f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag(unsigned DiagID) 5051f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor : Sema::TypeDiagnoser(DiagID == 0), DiagID(DiagID) {} 505291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5053d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor virtual void diagnose(Sema &S, SourceLocation Loc, QualType T) { 5054d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Suppressed) return; 5055d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor S.Diag(Loc, DiagID) << T; 5056d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor } 5057d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor }; 5058d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 5059d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 5060d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, unsigned DiagID) { 5061f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5062d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteExprType(E, Diagnoser); 5063e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 5064e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 50651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 50664ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50674ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 50684ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 506986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 507086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 507186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 507286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 507386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 50744ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50754ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 50764ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 50774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 50794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50804ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 50814ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 508291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 5083f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 5084658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (RequireCompleteTypeImpl(Loc, T, Diagnoser)) 5085658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return true; 5086658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (const TagType *Tag = T->getAs<TagType>()) { 5087658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (!Tag->getDecl()->isCompleteDefinitionRequired()) { 5088658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Tag->getDecl()->setCompleteDefinitionRequired(); 5089658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Consumer.HandleTagDeclRequiredDefinition(Tag->getDecl()); 5090658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 5091658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 5092658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return false; 5093658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie} 5094658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie 5095658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie/// \brief The implementation of RequireCompleteType 5096658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikiebool Sema::RequireCompleteTypeImpl(SourceLocation Loc, QualType T, 5097658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie TypeDiagnoser &Diagnoser) { 5098573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 5099573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 5100690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 5101690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 5102690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 51031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 5104690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 5105690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 51064ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 5107d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 5108d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 5109d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 5110b775100fea6d8955149897dae1adca50ca471d17Richard Smith if (!Diagnoser.Suppressed && Def && !LookupResult::isVisible(*this, Def)) { 5111d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 511291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // emitted the error once for this type. There's no usefulness in 5113d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 5114d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 5115d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 5116ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Module *Owner = Def->getOwningModule(); 5117ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Loc, diag::err_module_private_definition) 5118ca2ab45341c448284cf93770018c717810575f86Douglas Gregor << T << Owner->getFullModuleName(); 5119ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 5120ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 5121ca2ab45341c448284cf93770018c717810575f86Douglas Gregor if (!isSFINAEContext()) { 5122ca2ab45341c448284cf93770018c717810575f86Douglas Gregor // Recover by implicitly importing this module. 5123ca2ab45341c448284cf93770018c717810575f86Douglas Gregor createImplicitModuleImport(Loc, Owner); 5124d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 5125d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 512691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 51274ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 5128d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 51294ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 5130b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // FIXME: If there's an unimported definition of this type in a module (for 5131b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // instance, because we forward declared it, then imported the definition), 5132b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // import that definition now. 5133b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // FIXME: What about other cases where an import extends a redeclaration 5134b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // chain for a declaration that can be accessed through a mechanism other 5135b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // than name lookup (eg, referenced in a template, or a variable whose type 5136b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // could be completed by the module)? 5137b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith 5138bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 5139bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 514091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5141bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 5142bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 5143bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 5144bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 5145bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 5146bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 5147bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 5148bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 5149bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 5150bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 5151bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5152bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5153bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 5154bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 5155bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 5156bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 515791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5158bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 5159bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 5160bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 5161bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 5162bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 5163bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5164bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 516591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5166d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 5167923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 5168923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 5169923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 5170e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor while (const ConstantArrayType *Array 5171e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor = Context.getAsConstantArrayType(MaybeTemplate)) 5172923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 5173923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 51742943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 5175d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 5176972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 5177972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 5178d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 5179d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 51801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 5181d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 5182564f4c5664f552becbd05407611a92754c40e641Richard Smith CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass(); 5183564f4c5664f552becbd05407611a92754c40e641Richard Smith if (!Rec->isBeingDefined() && Pattern) { 5184564f4c5664f552becbd05407611a92754c40e641Richard Smith MemberSpecializationInfo *MSI = Rec->getMemberSpecializationInfo(); 5185564f4c5664f552becbd05407611a92754c40e641Richard Smith assert(MSI && "Missing member specialization information?"); 5186357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 5187564f4c5664f552becbd05407611a92754c40e641Richard Smith if (MSI->getTemplateSpecializationKind() != TSK_ExplicitSpecialization) 5188f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 5189f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 5190f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 5191d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 5192d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5193d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5194d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 51952943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 5196d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Diagnoser.Suppressed) 51975842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 5198d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 51994ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 5200cac18add73d095eaab600aefe27ea7174aec4922Nico Weber if (Ident___float128 && 5201cac18add73d095eaab600aefe27ea7174aec4922Nico Weber T == Context.getTypeDeclType(Context.getFloat128StubType())) { 5202cac18add73d095eaab600aefe27ea7174aec4922Nico Weber Diag(Loc, diag::err_typecheck_decl_incomplete_type___float128); 5203cac18add73d095eaab600aefe27ea7174aec4922Nico Weber return true; 5204cac18add73d095eaab600aefe27ea7174aec4922Nico Weber } 5205cac18add73d095eaab600aefe27ea7174aec4922Nico Weber 5206d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 520791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 52084ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 520901620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 52104ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 52111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 52124ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 52134ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 5214b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 521591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5216b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 5217b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 5218b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 52194ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 52205d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain // If we have external information that we can use to suggest a fix, 52215d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain // produce a note. 52225d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain if (ExternalSource) 52235d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain ExternalSource->MaybeDiagnoseMissingCompleteType(Loc, T); 52245d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain 52254ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 52264ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 5227e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 5228fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 522991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier unsigned DiagID) { 5230f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5231d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(Loc, T, Diagnoser); 5232fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 5233fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 52346666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \brief Get diagnostic %select index for tag kind for 52356666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// literal type diagnostic message. 52366666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// WARNING: Indexes apply to particular diagnostics only! 52376666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// 52386666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \returns diagnostic %select index. 5239f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matosstatic unsigned getLiteralDiagFromTagKind(TagTypeKind Tag) { 52406666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos switch (Tag) { 5241f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Struct: return 0; 5242f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Interface: return 1; 5243f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Class: return 2; 5244f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos default: llvm_unreachable("Invalid tag kind for literal type diagnostic!"); 52456666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos } 52466666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos} 52476666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos 52489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 52499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 52509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 52519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 52529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 52539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 52549f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 52559f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 52569f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 52579f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 52589f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 52599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 52609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 52619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 5262f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor/// @param Diagnoser Emits a diagnostic if T is not a literal type. 52639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 52649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 52659f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 52669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 5267f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 52689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 52699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5270ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman QualType ElemType = Context.getBaseElementType(T); 5271ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman RequireCompleteType(Loc, ElemType, 0); 5272ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 5273a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (T->isLiteralType(Context)) 52749f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 52759f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5276f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor if (Diagnoser.Suppressed) 52779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5279f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 52809f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52819f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 52829f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5284ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman const RecordType *RT = ElemType->getAs<RecordType>(); 52859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 52869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52879f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 52899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5290c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // A partially-defined class type can't be a literal type, because a literal 5291c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // class type must have a trivial destructor (which can't be checked until 5292c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // the class definition is complete). 5293c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith if (!RD->isCompleteDefinition()) { 5294d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor RequireCompleteType(Loc, ElemType, diag::note_non_literal_incomplete, T); 5295ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman return true; 5296c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith } 5297ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 52989f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 529986c3ae46250cdcc57778c27826060779a92f3815Richard Smith // cannot have any constexpr constructors or a trivial default constructor, 530086c3ae46250cdcc57778c27826060779a92f3815Richard Smith // so is non-literal. This is better to diagnose than the resulting absence 530186c3ae46250cdcc57778c27826060779a92f3815Richard Smith // of constexpr constructors. 53029f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 53039f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 53046666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos << getLiteralDiagFromTagKind(RD->getTagKind()) << RD->getNumVBases(); 53059f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 53069f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 530796a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 53089f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 530986c3ae46250cdcc57778c27826060779a92f3815Richard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor() && 531086c3ae46250cdcc57778c27826060779a92f3815Richard Smith !RD->hasTrivialDefaultConstructor()) { 53119f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 53129f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 53139f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 53149f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 5315a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context)) { 531696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 53179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 53189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 53199f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 53209f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 53219f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 53229f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 53239f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 5324a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context) || 5325262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie I->getType().isVolatileQualified()) { 5326262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Diag(I->getLocation(), diag::note_non_literal_field) 5327581deb3da481053c4993c7600f97acf7768caac5David Blaikie << RD << *I << I->getType() 5328262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << I->getType().isVolatileQualified(); 53299f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 53309f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 53319f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 53329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 53339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 53349f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 53359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 53369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 53379f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 53389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 53399f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 53409f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 53419f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 53429f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 5343ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith if (!Dtor->isUserProvided()) 5344ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith SpecialMemberIsTrivial(Dtor, CXXDestructor, /*Diagnose*/true); 53459f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 53469f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 53479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 53489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 53499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 535091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, unsigned DiagID) { 5351f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5352f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor return RequireLiteralType(Loc, T, Diagnoser); 5353f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor} 5354f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor 5355465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 5356465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 5357465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 5358465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 5359465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 5360e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 5361465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 5362e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 5363465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 5364465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 5365465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 5366465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 5367465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 5368465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 5369465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 5370e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 5371af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 53722a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 5373fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 53742a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 53752a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 53762a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 53772b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 53782b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 5379aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 5380aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 53812b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 5382af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 5383af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5384af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 5385f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// getDecltypeForExpr - Given an expr, will return the decltype for 5386f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// that expression, according to the rules in C++11 5387f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. 5388f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregorstatic QualType getDecltypeForExpr(Sema &S, Expr *E) { 5389f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (E->isTypeDependent()) 5390f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return S.Context.DependentTy; 5391f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 53926d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 53936d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // The type denoted by decltype(e) is defined as follows: 53946d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // 53956d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - if e is an unparenthesized id-expression or an unparenthesized class 539691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // member access (5.2.5), decltype(e) is the type of the entity named 539791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // by e. If there is no such entity, or if e names a set of overloaded 53986d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // functions, the program is ill-formed; 539984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // 540084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // We apply the same rules for Objective-C ivar and property references. 5401f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { 5402f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 5403f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return VD->getType(); 540484dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { 5405f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 5406f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return FD->getType(); 540784dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCIvarRefExpr *IR = dyn_cast<ObjCIvarRefExpr>(E)) { 540884dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return IR->getDecl()->getType(); 540984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCPropertyRefExpr *PR = dyn_cast<ObjCPropertyRefExpr>(E)) { 541084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor if (PR->isExplicitProperty()) 541184dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return PR->getExplicitProperty()->getType(); 5412f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 541384dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor 5414f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // C++11 [expr.lambda.prim]p18: 5415f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // Every occurrence of decltype((x)) where x is a possibly 5416f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // parenthesized id-expression that names an entity of automatic 5417f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // storage duration is treated as if x were transformed into an 5418f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // access to a corresponding data member of the closure type that 5419f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // would have been declared if x were an odr-use of the denoted 5420f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // entity. 5421f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor using namespace sema; 5422f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (S.getCurLambda()) { 5423f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (isa<ParenExpr>(E)) { 5424f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 5425f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 542668932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation()); 542768932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor if (!T.isNull()) 542868932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor return S.Context.getLValueReferenceType(T); 5429f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5430f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5431f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5432f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5433f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 5434f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 54356d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 54366d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // [...] 54376d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor QualType T = E->getType(); 54386d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor switch (E->getValueKind()) { 543991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the 54406d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 54416d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_XValue: T = S.Context.getRValueReferenceType(T); break; 544291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the 54436d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 54446d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_LValue: T = S.Context.getLValueReferenceType(T); break; 54456d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, decltype(e) is the type of e. 54466d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_RValue: break; 54476d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor } 544891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5449f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return T; 5450f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor} 5451f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 54522a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 5453fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 54542a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 54552a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 545691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5457f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return Context.getDecltypeType(E, getDecltypeForExpr(*this, E)); 5458af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5459ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 5460ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 5461ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 5462ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 5463ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 5464ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 5465ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 5466ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 5467ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 5468ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 5469ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 5470ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 5471ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 5472ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 5473ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 5474ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 5475ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5476ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 5477ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 5478ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 5479ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5480ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5481ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 5482ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 5483b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5484b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 5485b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 54868327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // FIXME: It isn't entirely clear whether incomplete atomic types 54878327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // are allowed or not; for simplicity, ban them for the moment. 5488d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, T, diag::err_atomic_specifier_bad_type, 0)) 54898327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith return QualType(); 54908327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith 5491b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 54928327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (T->isArrayType()) 5493b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 5494b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 5495b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 5496b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 5497b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 5498b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 5499b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 5500b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 5501b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 5502b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 5503b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 5504b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 5505b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5506b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 5507b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 5508b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 5509b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5510b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5511b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 5512b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5513b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5514b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 5515b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 5516b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 5517