SemaType.cpp revision b445cb9662067b7c7586815937b07828ede9bb49
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. 765f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman if (declarator.getContext() == Declarator::LambdaExprContext || 766f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman isOmittedBlockReturnType(declarator)) { 767152b4e4652baedfceba1cd8115515629225e713fManuel Klimek Result = Context.DependentTy; 7685db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 7695db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 7701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 771d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 772d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 773d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 774d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 775d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 776d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 777d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 7784e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ImplicitInt) { 77935d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 78035d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 7813f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 782711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 7833f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 78496a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar << FixItHint::CreateInsertion(DS.getLocStart(), "int"); 7853f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 7864310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 787d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 788d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 789d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 790d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 79158eb37036b47bbe7433f72d92a2cb60848507707Richard Smith if (S.getLangOpts().CPlusPlus) { 792711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 7933f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 7941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 795b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 796b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 797b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 798711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 799b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 800711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 8013f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 802b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 803d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 8063cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 8085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 809fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 810fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 811fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 812311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 813311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 81491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 815e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 816e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 817e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 818e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 81980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 820e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 821e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 822e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 823e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 824311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 828fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 829fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 830fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 831311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 832311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 83391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 834e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 835e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 836e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 837e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 83880ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 839e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 840e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 841e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 842e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 843311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 846958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8473cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 8485a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case DeclSpec::TST_int128: 84984268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith if (!S.PP.getTargetInfo().hasInt128Type()) 85084268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith S.Diag(DS.getTypeSpecTypeLoc(), diag::err_int128_unsupported); 8515a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned) 8525a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.UnsignedInt128Ty; 8535a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith else 8545a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.Int128Ty; 8555a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 856aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 857fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 858958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 859958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 860fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 861958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 862fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 86339d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 8644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 86539d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 86639d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 86739d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 868958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 869fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 873711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 8748f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 875711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8768f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 87799dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 8806666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_struct: 8816666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_interface: { 882b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 8836e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 8846e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 8856e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 886711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8876e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 8886e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 8896e24726524c2b51b31bb4b622aa678a46b024f42John McCall 890a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 8910daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 89291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 894a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 89591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 897a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 8982191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 8990daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 9000daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 9010daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 9020daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 903958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9051a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 91027940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 91227940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 91327940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 914c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 915c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 916c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 917c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 918c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 919c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 920c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 921c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 92231ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 923c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 924c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 925ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 926c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 92731ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 928c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 929c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 930c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 9314262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 932c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 93331ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 934c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 935c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 9363f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 937711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 9383f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 939711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9403f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 941c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 9421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 944958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 946958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 947e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 948711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 949958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 950730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 951730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 952711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 953d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 954fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 955958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 956d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 957b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 958d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 959d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 960711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 9614b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 9624b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 963711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9644b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 965958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 966d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 9676fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 968b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 9696fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 9706fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 971711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 972af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 973af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 974711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 975af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 9766fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 9776fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 978ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 979db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 980db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 981ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 982ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 983ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 984ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 985ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 986ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 987db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 98891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 989db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 990a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_auto: 991e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 992152b4e4652baedfceba1cd8115515629225e713fManuel Klimek Result = Context.getAutoType(QualType(), /*decltype(auto)*/false); 993a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 994a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 995a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_decltype_auto: 996152b4e4652baedfceba1cd8115515629225e713fManuel Klimek Result = Context.getAutoType(QualType(), /*decltype(auto)*/true); 997e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 999a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 1000a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 1001a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 1002a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 1003b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 1004b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 1005b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 1006b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 1007b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 1008b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 1009b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 1010b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 101191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 1012b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1013b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_t: 1014b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dTy; 1015b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1016b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1017b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_array_t: 1018b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dArrayTy; 1019b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1020b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1021b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_buffer_t: 1022b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dBufferTy; 1023b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1024b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1025b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_t: 1026b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dTy; 1027b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1028b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1029b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_array_t: 1030b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dArrayTy; 1031b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1032b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1033b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image3d_t: 1034b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage3dTy; 1035b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1036b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 103721f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei case DeclSpec::TST_sampler_t: 103821f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei Result = Context.OCLSamplerTy; 103921f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei break; 104021f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei 1041e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei case DeclSpec::TST_event_t: 1042e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei Result = Context.OCLEventTy; 1043e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei break; 1044e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei 1045809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 10465153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 1047711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 10485153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1051958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 1052f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 10534e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().Freestanding) 1054711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 1055fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 105682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 105782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 105882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 1059e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 1060788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 1061e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 1062788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 1063e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 1064e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 1065f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 10661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106747423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 106847423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 1069711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1071711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 1072711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 1073711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 1074711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 1075711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1076711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 1077711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 1078711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 1079711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 1080f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, Result, TAL_DeclSpec, attrs); 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 108396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 108496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 108596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 108696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 108796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 108896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 10890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 10904cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getConstSpecLoc(), diag::warn_typecheck_function_qualifiers) 10914cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 10920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 10934cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getVolatileSpecLoc(), diag::warn_typecheck_function_qualifiers) 10944cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 10964cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert((TypeQuals & (DeclSpec::TQ_restrict | DeclSpec::TQ_atomic)) && 10974cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith "Has CVRA quals but not C, V, R, or A?"); 10984cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No diagnostic; we'll diagnose 'restrict' or '_Atomic' applied to a 10994cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // function type later, in BuildQualifiedType. 110096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 110196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1103f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 1104f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 1105f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 1106f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 1107f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 11081a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 11091a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 1110f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 11110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 11120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 11134cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeQuals &= ~DeclSpec::TQ_atomic; 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1116bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 6.5.3 constraints: "The same type qualifier shall not appear more 1117bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // than once in the same specifier-list or qualifier-list, either directly 1118bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // or via one or more typedefs." 111991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus 1120bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman && TypeQuals & Result.getCVRQualifiers()) { 1121bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()) { 112291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) 1123bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "const"; 1124bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1125bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 1126bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()) { 112791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) 1128bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "volatile"; 1129bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1130bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11314cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C90 doesn't have restrict nor _Atomic, so it doesn't force us to 11324cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // produce a warning in this case. 1133bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1134bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11354cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith QualType Qualified = S.BuildQualifiedType(Result, DeclLoc, TypeQuals, &DS); 11364cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 11374cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If adding qualifiers fails, just use the unqualified type. 11384cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (Qualified.isNull()) 11394cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith declarator.setInvalidType(true); 11404cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith else 11414cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Result = Qualified; 114296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1144f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 1145f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 1146f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 1147cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 1148cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 1149cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1151cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 1152cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1153cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 11542865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 115593d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Qualifiers Qs, const DeclSpec *DS) { 11562865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 11572865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 11582865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 11592865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 11602865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 11612865474261a608c7873b87ba4af110d17907896dJohn McCall 116293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isAnyPointerType() || T->isReferenceType() || 116393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith T->isMemberPointerType()) { 116493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith QualType EltTy; 116593d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isObjCObjectPointerType()) 116693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T; 116793d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else if (const MemberPointerType *PTy = T->getAs<MemberPointerType>()) 116893d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = PTy->getPointeeType(); 116993d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else 117093d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T->getPointeeType(); 117193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith 117293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // If we have a pointer or reference, the pointee must have an object 117393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // incomplete type. 117493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (!EltTy->isIncompleteOrObjectType()) { 11752865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 117693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith ProblemTy = EltTy; 117791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 117893d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith } else if (!T->isDependentType()) { 117993d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith DiagID = diag::err_typecheck_invalid_restrict_not_pointer; 11802865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 11812865474261a608c7873b87ba4af110d17907896dJohn McCall } 11822865474261a608c7873b87ba4af110d17907896dJohn McCall 11832865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 118493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Diag(DS ? DS->getRestrictSpecLoc() : Loc, DiagID) << ProblemTy; 11852865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 11862865474261a608c7873b87ba4af110d17907896dJohn McCall } 11872865474261a608c7873b87ba4af110d17907896dJohn McCall } 11882865474261a608c7873b87ba4af110d17907896dJohn McCall 11892865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 11902865474261a608c7873b87ba4af110d17907896dJohn McCall} 11912865474261a608c7873b87ba4af110d17907896dJohn McCall 11924cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard SmithQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 11934cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVRA, const DeclSpec *DS) { 11944cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Convert from DeclSpec::TQ to Qualifiers::TQ by just dropping TQ_atomic. 11954cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVR = CVRA & ~DeclSpec::TQ_atomic; 11964cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 11974cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 11984cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If the same qualifier appears more than once in the same 11994cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, either directly or via one or more typedefs, 12004cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // the behavior is the same as if it appeared only once. 12014cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12024cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // It's not specified what happens when the _Atomic qualifier is applied to 12034cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // a type specified with the _Atomic specifier, but we assume that this 12044cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // should be treated as if the _Atomic qualifier appeared multiple times. 12054cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (CVRA & DeclSpec::TQ_atomic && !T->isAtomicType()) { 12064cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 12074cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If other qualifiers appear along with the _Atomic qualifier in a 12084cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, the resulting type is the so-qualified 12094cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // atomic type. 12104cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12114cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Don't need to worry about array types here, since _Atomic can't be 12124cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // applied to such types. 12134cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SplitQualType Split = T.getSplitUnqualifiedType(); 12144cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith T = BuildAtomicType(QualType(Split.Ty, 0), 12154cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith DS ? DS->getAtomicSpecLoc() : Loc); 12164cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (T.isNull()) 12174cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return T; 12184cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Split.Quals.addCVRQualifiers(CVR); 12194cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Split.Quals); 12204cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 12214cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 12224cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Qualifiers::fromCVRMask(CVR), DS); 12234cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 12244cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 1225075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1226075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1227075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1228075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1229075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1230f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1231f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1232f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1233f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1234f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1235f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1236f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1237f85e193739c953358c865005855253af4f68a497John McCall return type; 1238f85e193739c953358c865005855253af4f68a497John McCall 1239f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1240f85e193739c953358c865005855253af4f68a497John McCall 1241f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1242f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1243f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1244f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1245f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1246f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1247f85e193739c953358c865005855253af4f68a497John McCall 1248f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1249f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1250f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1251f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1252f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 12535b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1254ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1255ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 125671f55f771794674a410171dbf3cb5dbedf95d033David Blaikie } else if (S.isUnevaluatedContext()) { 1257ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1258f85e193739c953358c865005855253af4f68a497John McCall 1259e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // If that failed, give an error and recover using __strong. __strong 1260e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // is the option most likely to prevent spurious second-order diagnostics, 1261e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // like when binding a reference to a field. 1262f85e193739c953358c865005855253af4f68a497John McCall } else { 1263f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1264f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1265f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1266f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1267ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1268ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1269ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1270f85e193739c953358c865005855253af4f68a497John McCall } else { 1271ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1272f85e193739c953358c865005855253af4f68a497John McCall } 1273e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall implicitLifetime = Qualifiers::OCL_Strong; 1274f85e193739c953358c865005855253af4f68a497John McCall } 1275f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1276f85e193739c953358c865005855253af4f68a497John McCall 1277f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1278f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1279f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1280f85e193739c953358c865005855253af4f68a497John McCall} 1281f85e193739c953358c865005855253af4f68a497John McCall 1282cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1283cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1284cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1285cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1286cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1287cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1288cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1289cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1290cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1291cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1292cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1293cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1294cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 12952865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1296cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1297cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1298cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1299cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1300ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1301cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1302cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1303cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1304c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 130592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1306f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 13074e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1308f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1309f85e193739c953358c865005855253af4f68a497John McCall 1310cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 13112865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1312cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1313cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1314cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1315cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1316cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1317cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1318cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1319cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1320cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1321cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1322cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1323cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1324cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1325cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1326cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 132754e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 13282865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 132954e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 133091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier assert(Context.getCanonicalType(T) != Context.OverloadTy && 13319625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 133291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 133369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 133491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 133591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 133691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type T, an attempt to create the type "lvalue reference to cv TR" creates 133791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // the type "lvalue reference to T", while an attempt to create the type 133869d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 133954e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 134054e14c4db764c0636160d26c5bbf491637c83a76John McCall 134154e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 134254e14c4db764c0636160d26c5bbf491637c83a76John McCall // 134354e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 134454e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 134554e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 134654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 134754e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 134854e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 134954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 135054e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 135154e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 135269d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 135369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1354cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1355cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 135633a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1357cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1358cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1359cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1360cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1361cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1362cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1363f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 13644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1365f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1366f85e193739c953358c865005855253af4f68a497John McCall 1367cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 13687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 13692865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 13702865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1371cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1372cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1373e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1374e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1375282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smithstatic bool isArraySizeVLA(Sema &S, Expr *ArraySize, llvm::APSInt &SizeVal) { 1376282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode 1377282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // (like gnu99, but not c99) accept any evaluatable value as an extension. 1378ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor class VLADiagnoser : public Sema::VerifyICEDiagnoser { 1379ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor public: 1380ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor VLADiagnoser() : Sema::VerifyICEDiagnoser(true) {} 138191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1382ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) { 1383ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 138491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1385ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseFold(Sema &S, SourceLocation Loc, SourceRange SR) { 1386ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.Diag(Loc, diag::ext_vla_folded_to_constant) << SR; 1387ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 1388ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } Diagnoser; 138991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1390ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor return S.VerifyIntegerConstantExpression(ArraySize, &SizeVal, Diagnoser, 1391ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.LangOpts.GNUMode).isInvalid(); 1392e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1393e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1394e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1395cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1396cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1397cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1398cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1399cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 14001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1402cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1403efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Brackets The range from the opening '[' to the closing ']'. 1404cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1405cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1406cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1407cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1408cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1409cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1410cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1411cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 14127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 14130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 14147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 14154e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 1416138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1417138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 141891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type, the (possibly cv-qualified) type void, a function type or an 1419138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1420138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1421bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // C++ [dcl.array]p3: 1422bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // When several "array of" specifications are adjacent, [...] only the 1423bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // first of the constant expressions that specify the bounds of the arrays 1424bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // may be omitted. 1425bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // 1426138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1427138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1428138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1429138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1430138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1431138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 143291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1433bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith if (T->isVoidType() || T->isIncompleteArrayType()) { 1434923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1435923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1436923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 143791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 143891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (RequireNonAbstractType(Brackets.getBegin(), T, 1439138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1440138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 144191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1442923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1443138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1444138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1445923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1446923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1447923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1448923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1449cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1450cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1451cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1452ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1453cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1454cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 14551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14566217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1457cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1458cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1459cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1460cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1461c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1462c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1463c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1464cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 14651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1466806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1467806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1468806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1469806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1470806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1471806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1472806054db6653d29cb0d9692df3612cbcd03d0530John McCall 14735e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1474429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1475429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1476429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1477429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1478429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1479429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1480429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 14815e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1482cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 1483282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // C++11 allows contextual conversions to such types. 148480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (!getLangOpts().CPlusPlus11 && 1485282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize && !ArraySize->isTypeDependent() && 14861274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1487cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1488cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1489cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1490cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1491282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 14922767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1493cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1494f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 14957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1496f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1497f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1498ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 14997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1500282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } else if ((!T->isDependentType() && !T->isIncompleteType() && 1501282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !T->isConstantSizeType()) || 1502282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith isArraySizeVLA(*this, ArraySize, ConstVal)) { 1503282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // Even in C++11, don't allow contextual conversions in the array bound 1504282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // of a VLA. 150580ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && 1506282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1507282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1508282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith << ArraySize->getType() << ArraySize->getSourceRange(); 1509282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return QualType(); 1510282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } 1511282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 1512e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1513e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1514e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 15157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1516cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1517cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1518cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1519923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1520b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1521b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1522b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1523b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1524b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1525b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1526923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1527923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1528923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 152902024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 153002024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 153191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(ArraySize->getLocStart(), 153202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 153302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1534923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 153520cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 153620cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 153720cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 153820cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 153920cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 154020cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 154120cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 154291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 1543152b4e4652baedfceba1cd8115515629225e713fManuel Klimek !T->isIncompleteType()) { 154491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Is the array too large? 15452767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 15462767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 1547ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) { 15482767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 15492767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 15502767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 1551ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu return QualType(); 1552ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu } 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 155491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 155546a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1556cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1557617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly 1558617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly // OpenCL v1.2 s6.9.d: variable length arrays are not supported. 1559617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly if (getLangOpts().OpenCL && T->isVariableArrayType()) { 1560617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly Diag(Loc, diag::err_opencl_vla); 1561617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly return QualType(); 1562617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly } 1563af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 15644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().C99) { 15650fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 15660fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 156739b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith // FIXME: C++1y allows this. 1568f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 156991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!T->isDependentType() && 15703c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT.isPODType(Context) && 15713c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT->isObjCLifetimeType()) { 15720fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1573f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 15740fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 157591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 1576a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1577a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1578a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1579a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1580a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 15810fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 15820fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 158339b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith Diag(Loc, getLangOpts().CPlusPlus1y 158439b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith ? diag::warn_cxx11_compat_array_of_runtime_bound 158539b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith : diag::ext_vla); 15860fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1587d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 15884e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().CPlusPlus? diag::err_c99_array_usage_cxx 1589d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1590cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1591cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1592630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko if (T->isVariableArrayType()) { 1593630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko // Warn about VLAs for -Wvla. 1594630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko Diag(Loc, diag::warn_vla_used); 1595630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko } 1596630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko 1597cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1598cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 15999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 16019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 16029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 16039ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 16049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 16069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 16071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 16089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 16099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 16109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16139ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 16149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 16159ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 16169f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman Diag(AttrLoc, diag::err_attribute_argument_type) 16179f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << "ext_vector_type" << AANT_ArgumentIntegerConstant 16189f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ArraySize->getSourceRange(); 16199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16209cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 16239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 16241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 16279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 16289ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 16299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16321652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize)) { 16331652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Diag(AttrLoc, diag::err_attribute_size_too_large) 16341652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << ArraySize->getSourceRange(); 16351652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return QualType(); 16361652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 16371652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman 16384ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16419ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 16429cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1644ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedmanbool Sema::CheckFunctionReturnType(QualType T, SourceLocation Loc) { 1645724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 164691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(Loc, diag::err_func_returning_array_function) 164758408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1648ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1649724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1650aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1651aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1652aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1653aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1654aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1655ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1656ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 1657ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1658ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 1659ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 1660ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 1661ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Diag(Loc, diag::err_object_cannot_be_passed_returned_by_value) << 0 << T; 1662ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return 0; 1663aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1664aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1665ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return false; 1666ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman} 1667ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1668ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli FriedmanQualType Sema::BuildFunctionType(QualType T, 1669ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman llvm::MutableArrayRef<QualType> ParamTypes, 1670ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation Loc, DeclarationName Entity, 1671ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman const FunctionProtoType::ExtProtoInfo &EPI) { 1672724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1673ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1674ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Invalid |= CheckFunctionReturnType(T, Loc); 1675ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1676bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose for (unsigned Idx = 0, Cnt = ParamTypes.size(); Idx < Cnt; ++Idx) { 1677aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 1678c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 16792dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1680724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1681724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1682aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1683aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1684aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1685aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1686aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1687724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1688cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 168954e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1690724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1691724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1692724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1693724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1694724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1695bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose return Context.getFunctionType(T, ParamTypes, EPI); 1696724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 16971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1698949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1699949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1700949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1701949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 1702949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1703949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1704949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1705949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1706949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 17082865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1709949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1710949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1711949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1712949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1713949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1714949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1715949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1716949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1717949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1718949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1719949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1720949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1721949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1722949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1723737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1724949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1725949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 17268d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1727ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1728949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1729949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1730949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1731949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1732949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1733949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1734949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1735949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1736949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1737949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1738949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1739949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1740949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1741949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1742b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // C++ allows the class type in a member pointer to be an incomplete type. 1743b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // In the Microsoft ABI, the size of the member pointer can vary 1744b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // according to the class type, which means that we really need a 1745b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // complete type if possible, which means we need to instantiate templates. 1746b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // 174784e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // If template instantiation fails or the type is just incomplete, we have to 174884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // add an extra slot to the member pointer. Yes, this does cause problems 174984e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // when passing pointers between TUs that disagree about the size. 175084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { 175184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner CXXRecordDecl *RD = Class->getAsCXXRecordDecl(); 1752e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RD && !RD->hasAttr<MSInheritanceAttr>()) { 175384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Lock in the inheritance model on the first use of a member pointer. 175484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Otherwise we may disagree about the size at different points in the TU. 175584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // FIXME: MSVC picks a model on the first use that needs to know the size, 175684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // rather than on the first mention of the type, e.g. typedefs. 1757e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RequireCompleteType(Loc, Class, 0) && !RD->isBeingDefined()) { 175884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // We know it doesn't have an attribute and it's incomplete, so use the 175984e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // unspecified inheritance model. If we're in the record body, we can 176084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // figure out the inheritance model. 176184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner for (CXXRecordDecl::redecl_iterator I = RD->redecls_begin(), 176284e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner E = RD->redecls_end(); I != E; ++I) { 176384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner I->addAttr(::new (Context) UnspecifiedInheritanceAttr( 176484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner RD->getSourceRange(), Context)); 176584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 176684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 176784e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 176884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 1769679fc9314c2bde5eb6bea33c790d1a035461e618Joao Matos 1770ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // FIXME: Adjust member function pointer calling conventions. 1771ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 17722865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1773949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17759a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 17769a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17779a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 17789a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 1779efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Loc The source location, used for diagnostics. 17809a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17819a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 17829a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 17839a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17849a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 17859a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 178691cbbbf506c892a26d4301e2b3ccd377b0938817Chad RosierQualType Sema::BuildBlockPointerType(QualType T, 17871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 17889a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 17890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 17909a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 17919a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 17929a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17942865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 17959a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 17969a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1797b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1798b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 17993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1800a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 18013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 18023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1804a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1805f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1806e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1807a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1808e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 18091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1810a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1811e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1812e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1813e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1814a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1815a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1816a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1817a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1818f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1819f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1820f85e193739c953358c865005855253af4f68a497John McCall/// types. 1821f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1822f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1823f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1824f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1825f85e193739c953358c865005855253af4f68a497John McCall 1826f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1827f85e193739c953358c865005855253af4f68a497John McCall 1828f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1829f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1830f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1831f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1832f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1833f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1834f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1835f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1836f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1837f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1838f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1839f85e193739c953358c865005855253af4f68a497John McCall break; 1840f85e193739c953358c865005855253af4f68a497John McCall 1841f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1842f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1843f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1844f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1845f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1846f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1847f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1848f85e193739c953358c865005855253af4f68a497John McCall break; 1849f85e193739c953358c865005855253af4f68a497John McCall 1850f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1851f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1852f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1853f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1854f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1855f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1856f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1857f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1858f85e193739c953358c865005855253af4f68a497John McCall 1859f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1860f85e193739c953358c865005855253af4f68a497John McCall goto done; 1861f85e193739c953358c865005855253af4f68a497John McCall 1862f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1863f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1864f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1865f85e193739c953358c865005855253af4f68a497John McCall return; 1866f85e193739c953358c865005855253af4f68a497John McCall } 1867f85e193739c953358c865005855253af4f68a497John McCall } 1868f85e193739c953358c865005855253af4f68a497John McCall done: 1869f85e193739c953358c865005855253af4f68a497John McCall 1870f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1871f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1872f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1873f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1874f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1875f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1876f85e193739c953358c865005855253af4f68a497John McCall 1877f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1878f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1879f85e193739c953358c865005855253af4f68a497John McCall 1880f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1881f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 188291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1883f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1884f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1885f85e193739c953358c865005855253af4f68a497John McCall else 1886f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1887f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1888f85e193739c953358c865005855253af4f68a497John McCall 1889f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1890f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1891f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1892f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1893f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1894f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1895f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1896f85e193739c953358c865005855253af4f68a497John McCall return; 1897f85e193739c953358c865005855253af4f68a497John McCall 1898f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1899f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 19001c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 19011c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 19021c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1903f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1904f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 19058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 1906f85e193739c953358c865005855253af4f68a497John McCall return; 1907f85e193739c953358c865005855253af4f68a497John McCall 1908a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1909a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1910f85e193739c953358c865005855253af4f68a497John McCall 1911f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1912f85e193739c953358c865005855253af4f68a497John McCall } else return; 1913f85e193739c953358c865005855253af4f68a497John McCall 1914f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1915f85e193739c953358c865005855253af4f68a497John McCall} 1916f85e193739c953358c865005855253af4f68a497John McCall 19178c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredQualifiers( 19188c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Sema &S, unsigned Quals, 19198c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation FallbackLoc, 19208c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation ConstQualLoc = SourceLocation(), 19218c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation VolatileQualLoc = SourceLocation(), 19228c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation RestrictQualLoc = SourceLocation(), 19238c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation AtomicQualLoc = SourceLocation()) { 1924eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith if (!Quals) 1925eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith return; 1926eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith 19278c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const SourceManager &SM = S.getSourceManager(); 19288c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19298c952cd40ccec9d720931f27e7d722fed207d536Richard Smith struct Qual { 19308c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned Mask; 19318c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const char *Name; 19328c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation Loc; 19338c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } const QualKinds[4] = { 19348c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_const, "const", ConstQualLoc }, 19358c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_volatile, "volatile", VolatileQualLoc }, 19368c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_restrict, "restrict", RestrictQualLoc }, 19378c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_atomic, "_Atomic", AtomicQualLoc } 19388c952cd40ccec9d720931f27e7d722fed207d536Richard Smith }; 19398c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 194030d237556fdd29b5075c990da953116225b95d9dRobert Wilhelm SmallString<32> QualStr; 1941d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1942d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 19438c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixItHint FixIts[4]; 19448c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19458c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Build a string naming the redundant qualifiers. 19468c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned I = 0; I != 4; ++I) { 19478c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Quals & QualKinds[I].Mask) { 19488c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualStr.empty()) QualStr += ' '; 19498c952cd40ccec9d720931f27e7d722fed207d536Richard Smith QualStr += QualKinds[I].Name; 19508c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19518c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If we have a location for the qualifier, offer a fixit. 19528c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation QualLoc = QualKinds[I].Loc; 19538c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualLoc.isInvalid()) { 19548c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixIts[NumQuals] = FixItHint::CreateRemoval(QualLoc); 19558c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Loc.isInvalid() || SM.isBeforeInTranslationUnit(QualLoc, Loc)) 19568c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Loc = QualLoc; 19578c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 1958d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 19598c952cd40ccec9d720931f27e7d722fed207d536Richard Smith ++NumQuals; 19608c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 19618c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 1962d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 19638c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S.Diag(Loc.isInvalid() ? FallbackLoc : Loc, diag::warn_qual_return_type) 19648c952cd40ccec9d720931f27e7d722fed207d536Richard Smith << QualStr << NumQuals << FixIts[0] << FixIts[1] << FixIts[2] << FixIts[3]; 19658c952cd40ccec9d720931f27e7d722fed207d536Richard Smith} 1966a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 19678c952cd40ccec9d720931f27e7d722fed207d536Richard Smith// Diagnose pointless type qualifiers on the return type of a function. 19688c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredFunctionQualifiers(Sema &S, QualType RetTy, 19698c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Declarator &D, 19708c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned FunctionChunkIndex) { 19718c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getTypeObject(FunctionChunkIndex).Fun.hasTrailingReturnType()) { 19728c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: TypeSourceInfo doesn't preserve location information for 19738c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // qualifiers. 1974eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, RetTy.getLocalCVRQualifiers(), 19758c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 19768c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 1977d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 19788c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19798c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned OuterChunkIndex = FunctionChunkIndex + 1, 19808c952cd40ccec9d720931f27e7d722fed207d536Richard Smith End = D.getNumTypeObjects(); 19818c952cd40ccec9d720931f27e7d722fed207d536Richard Smith OuterChunkIndex != End; ++OuterChunkIndex) { 19828c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk &OuterChunk = D.getTypeObject(OuterChunkIndex); 19838c952cd40ccec9d720931f27e7d722fed207d536Richard Smith switch (OuterChunk.Kind) { 19848c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Paren: 19858c952cd40ccec9d720931f27e7d722fed207d536Richard Smith continue; 19868c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19878c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Pointer: { 19888c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk::PointerTypeInfo &PTI = OuterChunk.Ptr; 19898c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers( 19908c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S, PTI.TypeQuals, 19918c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation(), 19928c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 19938c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 19948c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 19958c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.AtomicQualLoc)); 19968c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 19978c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 19988c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19998c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Function: 20008c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::BlockPointer: 20018c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Reference: 20028c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Array: 20038c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::MemberPointer: 20048c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: We can't currently provide an accurate source location and a 20058c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // fix-it hint for these. 2006eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith unsigned AtomicQual = RetTy->isAtomicType() ? DeclSpec::TQ_atomic : 0; 20078c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers(S, RetTy.getCVRQualifiers() | AtomicQual, 20088c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 20098c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 20108c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20118c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20128c952cd40ccec9d720931f27e7d722fed207d536Richard Smith llvm_unreachable("unknown declarator chunk kind"); 20134cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 2014d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20158c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If the qualifiers come from a conversion function type, don't diagnose 20168c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // them -- they're not necessarily redundant, since such a conversion 20178c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // operator can be explicitly called as "x.operator const int()". 20188c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 20198c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 2020d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20218c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Just parens all the way out to the decl specifiers. Diagnose any qualifiers 20228c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // which are present there. 2023eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, D.getDeclSpec().getTypeQualifiers(), 20248c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc(), 20258c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getConstSpecLoc(), 20268c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getVolatileSpecLoc(), 20278c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getRestrictSpecLoc(), 20288c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getAtomicSpecLoc()); 2029d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 2030d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 20328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 20338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 20348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 2035930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 20368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 2037711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 20388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 20398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 20408999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 204160e141e1f87211ca831de6821003d80fe20a06f3Richard Smith bool ContainsPlaceholderType = false; 204260e141e1f87211ca831de6821003d80fe20a06f3Richard Smith 20433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 204498a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 20453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 20468999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 20470486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 20483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 20498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 205060e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = D.getDeclSpec().containsPlaceholderType(); 205191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2052591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 2053d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 205415987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 2055d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 2056591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 2057930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 2058930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 20593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 20600efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 20613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 2062930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 206391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // "void" instead. 20648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 2065a78a640c5f59720f2c2b8034eca4fbf8525d9026Rafael Espindola if (AttributeList *attrs = D.getDeclSpec().getAttributes().getList()) 2066f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclSpec, attrs); 2067930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 206848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 206948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 207048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 207148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 207291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 20738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 207460e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = T->getContainedAutoType(); 207548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 2076930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 2077dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 2078711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 2079711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 2080711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2081d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 2082d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // In C++11, a function declarator using 'auto' must have a trailing return 20838110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 20848110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 208560e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (ContainsPlaceholderType && 208680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!SemaRef.getLangOpts().CPlusPlus11 || !D.isFunctionDeclarator())) { 2087baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 20881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2089baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 2090baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 2091b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 2092f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2093f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 2094cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2095cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 2096baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 2097152b4e4652baedfceba1cd8115515629225e713fManuel Klimek Error = 0; // Function prototype 2098baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2099baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 21007a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 21017a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 21028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 2103eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 2104465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 2105465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 2106465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 21076666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Interface: Error = 4; /* Interface member */ break; 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2109baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2110baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 211117b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 21126666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 5; // Exception declaration 2113baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2114baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 21156666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 6; // Template parameter 2116baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2117baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 21186666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 7; // Block literal 211934b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 212034b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 21216666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 8; // Template type argument 212234b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 2123162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 21243e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 21256666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 10; // Type alias 2126162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 21277796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 212860e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 212960e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 11; // Function return type 21307796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 213114f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 213260e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 213360e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 12; // conversion-type-id 213414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith break; 213534b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 213614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith Error = 13; // Generic 2137baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2138baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 2139baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 2140baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 2141baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 21420b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2143baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2144baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 2145baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 2146ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 21476666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 9; 2148ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 21498110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 21508110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 21516666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 11; 21528110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 2153d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p2: 'auto' is always fine if the declarator 2154e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 2155e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 2156e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 215780ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (SemaRef.getLangOpts().CPlusPlus11 && Error != -1) { 2158e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2159e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 2160e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 2161e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2162e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 2163e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 216454655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (FTI.hasTrailingReturnType()) { 2165e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 2166e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 2167e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2168e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2169e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2170e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2171e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 217214f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SourceRange AutoRange = D.getDeclSpec().getTypeSpecTypeLoc(); 217314f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 217414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith AutoRange = D.getName().getSourceRange(); 217514f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith 2176baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 217714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), diag::err_auto_not_allowed) 217814f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith << Error << AutoRange; 21798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 2180baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 21810aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 218214f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), 218314f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith diag::warn_cxx98_compat_auto_type_specifier) 218414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith << AutoRange; 2185baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 21868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 21874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus && 21885e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 21898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 21908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 21918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 21927796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 21937796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // Class and enumeration definitions are syntactically not allowed in 21947796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // trailing return types. 21957796eb5643244f3134834253ce5ea89107ac21c1Richard Smith llvm_unreachable("parser should not have allowed this"); 21967796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 21978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 21988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 21998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 22008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 22018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 2202f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2203d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.type]p3: 22048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 22058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 22068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 22078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 22088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 22108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 22128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2213601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 221614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 22178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 22188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 22198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 22208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 22218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 22228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 22248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2225601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 2228cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2229cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 22308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 22318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 22328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 22338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 22358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2236601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 22398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 22408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 22418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 22428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 2244601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 22478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 22488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 22498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 22508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 22518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2252a08c2fb74ef823c185619ecc532f8fced6a1982fBenjamin Kramerstatic std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ 2253d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::string Quals = 2254d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 2255d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2256d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (FnTy->getRefQualifier()) { 2257d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_None: 2258d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2259d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2260d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_LValue: 2261d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2262d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2263d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += '&'; 2264d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2265d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2266d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_RValue: 2267d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2268d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2269d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += "&&"; 2270d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2271d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2272d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2273d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return Quals; 2274d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2275d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2276d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// Check that the function type T, which has a cv-qualifier or a ref-qualifier, 2277d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// can be contained within the declarator chunk DeclType, and produce an 2278d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// appropriate diagnostic if not. 2279d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smithstatic void checkQualifiedFunction(Sema &S, QualType T, 2280d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DeclaratorChunk &DeclType) { 2281d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: a function type with a 2282d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // cv-qualifier or a ref-qualifier can only appear at the topmost level 2283d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // of a type. 2284d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith int DiagKind = -1; 2285d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (DeclType.Kind) { 2286d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Paren: 2287d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::MemberPointer: 2288d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases are permitted. 2289d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2290d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Array: 2291d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Function: 2292d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases don't allow function types at all; no need to diagnose the 2293d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // qualifiers separately. 2294d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2295d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::BlockPointer: 2296d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 0; 2297d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2298d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Pointer: 2299d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 1; 2300d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2301d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Reference: 2302d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 2; 2303d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2304d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2305d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2306d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(DiagKind != -1); 2307d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(DeclType.Loc, diag::err_compound_qualified_function_type) 2308d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << DiagKind << isa<FunctionType>(T.IgnoreParens()) << T 2309d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(T->castAs<FunctionProtoType>()); 2310d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2311d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2312b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// Produce an approprioate diagnostic for an ambiguity between a function 2313b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// declarator and a C++ direct-initializer. 2314b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smithstatic void warnAboutAmbiguousFunction(Sema &S, Declarator &D, 2315b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith DeclaratorChunk &DeclType, QualType RT) { 2316b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2317b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith assert(FTI.isAmbiguous && "no direct-initializer / function ambiguity"); 2318b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2319b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If the return type is void there is no ambiguity. 2320b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isVoidType()) 2321b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2322b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2323b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a non-class type can have at most one argument. 2324b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!RT->isRecordType() && FTI.NumArgs > 1) 2325b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2326b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2327b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a reference must have exactly one argument. 2328b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isReferenceType() && FTI.NumArgs != 1) 2329b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2330b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2331b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Only warn if this declarator is declaring a function at block scope, and 2332b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // doesn't have a storage class (such as 'extern') specified. 2333b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!D.isFunctionDeclarator() || 2334b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith D.getFunctionDefinitionKind() != FDK_Declaration || 2335b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith !S.CurContext->isFunctionOrMethod() || 2336d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola D.getDeclSpec().getStorageClassSpec() 2337b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith != DeclSpec::SCS_unspecified) 2338b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2339b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2340b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Inside a condition, a direct initializer is not permitted. We allow one to 2341b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // be parsed in order to give better diagnostics in condition parsing. 2342b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (D.getContext() == Declarator::ConditionContext) 2343b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2344b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2345b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange ParenRange(DeclType.Loc, DeclType.EndLoc); 2346b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2347d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(DeclType.Loc, 2348d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FTI.NumArgs ? diag::warn_parens_disambiguated_as_function_declaration 2349d64effc4e31044c05d6e4400150edb26e914983aRichard Smith : diag::warn_empty_parens_are_function_decl) 2350d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << ParenRange; 2351d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2352d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // If the declaration looks like: 2353d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // T var1, 2354d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // f(); 2355d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // and name lookup finds a function named 'f', then the ',' was 2356d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // probably intended to be a ';'. 2357d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (!D.isFirstDeclarator() && D.getIdentifier()) { 2358d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Comma(D.getCommaLoc(), S.SourceMgr); 2359d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Name(D.getIdentifierLoc(), S.SourceMgr); 2360d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (Comma.getFileID() != Name.getFileID() || 2361d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Comma.getSpellingLineNumber() != Name.getSpellingLineNumber()) { 2362d64effc4e31044c05d6e4400150edb26e914983aRichard Smith LookupResult Result(S, D.getIdentifier(), SourceLocation(), 2363d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Sema::LookupOrdinaryName); 2364d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (S.LookupName(Result, S.getCurScope())) 2365d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(D.getCommaLoc(), diag::note_empty_parens_function_call) 2366d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << FixItHint::CreateReplacement(D.getCommaLoc(), ";") 2367d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << D.getIdentifier(); 2368d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2369d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2370b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2371d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (FTI.NumArgs > 0) { 2372d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration with parameters, eg. "T var(T());", suggest adding parens 2373d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // around the first parameter to turn the declaration into a variable 2374d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2375b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange Range = FTI.ArgInfo[0].Param->getSourceRange(); 2376b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation B = Range.getBegin(); 2377b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation E = S.PP.getLocForEndOfToken(Range.getEnd()); 2378b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // FIXME: Maybe we should suggest adding braces instead of parens 2379b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // in C++11 for classes that don't have an initializer_list constructor. 2380b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(B, diag::note_additional_parens_for_variable_declaration) 2381b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(B, "(") 2382b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(E, ")"); 2383d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } else { 2384d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration without parameters, eg. "T var();", suggest replacing the 2385d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // parens with an initializer to turn the declaration into a variable 2386d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2387b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const CXXRecordDecl *RD = RT->getAsCXXRecordDecl(); 2388d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2389b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Empty parens mean value-initialization, and no parens mean 2390b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // default initialization. These are equivalent if the default 2391b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // constructor is user-provided or if zero-initialization is a 2392b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // no-op. 2393b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RD && RD->hasDefinition() && 2394b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith (RD->isEmpty() || RD->hasUserProvidedDefaultConstructor())) 2395b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_default_ctor) 2396b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateRemoval(ParenRange); 2397b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith else { 2398b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith std::string Init = S.getFixItZeroInitializerForType(RT); 239980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (Init.empty() && S.LangOpts.CPlusPlus11) 2400b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith Init = "{}"; 2401b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!Init.empty()) 2402b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_zero_initialize) 2403b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateReplacement(ParenRange, Init); 2404b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2405b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2406b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith} 2407b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2408ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// Helper for figuring out the default CC for a function declarator type. If 2409ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// this is the outermost chunk, then we can determine the CC from the 2410ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// declarator context. If not, then this could be either a member function 2411ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner/// type or normal function type. 2412ef072033876e295ec5d3402f8730a3ae358ad815Reid Klecknerstatic CallingConv 2413ef072033876e295ec5d3402f8730a3ae358ad815Reid KlecknergetCCForDeclaratorChunk(Sema &S, Declarator &D, 2414ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const DeclaratorChunk::FunctionTypeInfo &FTI, 2415ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner unsigned ChunkIndex) { 2416ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner assert(D.getTypeObject(ChunkIndex).Kind == DeclaratorChunk::Function); 2417ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2418ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool IsCXXInstanceMethod = false; 2419ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2420ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (S.getLangOpts().CPlusPlus) { 2421ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Look inwards through parentheses to see if this chunk will form a 2422ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // member pointer type or if we're the declarator. Any type attributes 2423ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // between here and there will override the CC we choose here. 2424ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner unsigned I = ChunkIndex; 2425ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool FoundNonParen = false; 2426ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner while (I && !FoundNonParen) { 2427ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner --I; 2428ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (D.getTypeObject(I).Kind != DeclaratorChunk::Paren) 2429ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FoundNonParen = true; 2430ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2431ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2432ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (FoundNonParen) { 2433ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // If we're not the declarator, we're a regular function type unless we're 2434ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // in a member pointer. 2435ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod = 2436ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner D.getTypeObject(I).Kind == DeclaratorChunk::MemberPointer; 2437ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } else { 2438ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // We're the innermost decl chunk, so must be a function declarator. 2439ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner assert(D.isFunctionDeclarator()); 2440ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2441ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // If we're inside a record, we're declaring a method, but it could be 2442ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // static. 2443ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod = 2444ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner (D.getContext() == Declarator::MemberContext && 2445ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 2446ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static && 2447ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner !D.getDeclSpec().isFriendSpecified()); 2448ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2449ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 2450ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 2451ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return S.Context.getDefaultCallingConvention(FTI.isVariadic, 2452ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner IsCXXInstanceMethod); 2453ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner} 2454ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 24558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 24568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 24578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 24588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 24598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 24608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 24618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 24628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 24634e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &LangOpts = S.getLangOpts(); 24648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2465cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 2466cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 2467cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 2468cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 24691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2470162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 2471162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 2472162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 24733e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 24743e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 2475162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2476d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Does T refer to a function type with a cv-qualifier or a ref-qualifier? 2477d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith bool IsQualifiedFunction = T->isFunctionProtoType() && 2478d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith (T->castAs<FunctionProtoType>()->getTypeQuals() != 0 || 2479d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None); 2480d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2481a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // If T is 'decltype(auto)', the only declarators we can have are parens 2482a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // and at most one function declarator if this is a function declaration. 2483a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (const AutoType *AT = T->getAs<AutoType>()) { 2484a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (AT->isDecltypeAuto()) { 2485a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith for (unsigned I = 0, E = D.getNumTypeObjects(); I != E; ++I) { 2486a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned Index = E - I - 1; 2487a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DeclaratorChunk &DeclChunk = D.getTypeObject(Index); 2488a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagId = diag::err_decltype_auto_compound_type; 2489a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagKind = 0; 2490a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith switch (DeclChunk.Kind) { 2491a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Paren: 2492a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2493a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Function: { 2494a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned FnIndex; 2495a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (D.isFunctionDeclarationContext() && 2496a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.isFunctionDeclarator(FnIndex) && FnIndex == Index) 2497a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2498a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagId = diag::err_decltype_auto_function_declarator_not_declaration; 2499a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2500a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2501a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Pointer: 2502a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::BlockPointer: 2503a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::MemberPointer: 2504a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 0; 2505a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2506a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Reference: 2507a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 1; 2508a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2509a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Array: 2510a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 2; 2511a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2512a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2513a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 2514a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclChunk.Loc, DiagId) << DiagKind; 2515a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.setInvalidType(true); 2516a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2517a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2518a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2519a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2520a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 252198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 252298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 252398eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 25248ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 2526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 2527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2528d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction) { 2529d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith checkQualifiedFunction(S, T, DeclType); 2530d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = DeclType.Kind == DeclaratorChunk::Paren; 2531d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 25325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 2533075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 25348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 2535075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 25365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 25379af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 25389af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 25398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 25401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 25422865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 25438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 25445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 25455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 25466a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 25476a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25506a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25516a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 25538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 2554c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 25552865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 25568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 255714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 255814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 25598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 25602865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 25618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 25635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 25640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 25656a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 25666a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25696a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25706a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25716a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 25728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 25732865474261a608c7873b87ba4af110d17907896dJohn McCall 25742865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 25752865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 25768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 25775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 25780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 25795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 25806a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 25816a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25846a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2587fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 258894f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 25895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 25905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 25915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 25925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 25935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 25945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 25955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2596c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2597f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2598f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2599f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 26008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2601f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2602f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2603f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 26047f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 26057f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: The optional type qualifiers and the keyword static 26067f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // shall appear only in a declaration of a function parameter with an 26077f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // array type, ... 26087f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static || ATI.TypeQuals) { 260999570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay if (!(D.isPrototypeContext() || 261099570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay D.getContext() == Declarator::KNRTypeListContext)) { 26117f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_outside_prototype) << 26127f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 26137f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Remove the 'static' and the type qualifiers. 26147f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 26157f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 26167f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 26177f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 26187f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26197f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 26207f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: ... and then only in the outermost array type 26217f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // derivation. 26227f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg unsigned x = chunkIndex; 26237f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg while (x != 0) { 26247f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Walk outwards along the declarator chunks. 26257f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg x--; 26267f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg const DeclaratorChunk &DC = D.getTypeObject(x); 26277f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg switch (DC.Kind) { 26287f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Paren: 26297f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg continue; 26307f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Array: 26317f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Pointer: 26327f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Reference: 26337f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::MemberPointer: 26347f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_not_outermost) << 26357f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 26367f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 26377f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 26387f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 26397f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 26407f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26417f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Function: 26427f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::BlockPointer: 26437f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // These are invalid anyway, so just ignore. 26447f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26457f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26467f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26477f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 2648152b4e4652baedfceba1cd8115515629225e713fManuel Klimek 2649152b4e4652baedfceba1cd8115515629225e713fManuel Klimek if (const AutoType *AT = T->getContainedAutoType()) { 2650a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // We've already diagnosed this for decltype(auto). 2651dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!AT->isDecltypeAuto()) 2652a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclType.Loc, diag::err_illegal_decl_array_of_auto) 2653a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith << getPrintableNameForEntity(Name) << T; 2654dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith T = QualType(); 2655dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith break; 2656a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2657a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 26588ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 26598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 26605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 26615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2662f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 26635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 26645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 26655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 26665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2667d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = FTI.TypeQuals || FTI.hasRefQualifier(); 26683cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 266934b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 267034b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 267134b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 267234b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 267334b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 267434b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 267560e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !FTI.hasTrailingReturnType() && chunkIndex == 0 && 267660e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !S.getLangOpts().CPlusPlus1y) { 26778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 267834b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 267934b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 268034b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 268154655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } else if (FTI.hasTrailingReturnType()) { 2682e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2683e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 26848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2685e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2686e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2687e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2688f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2689a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith (T.hasQualifiers() || !isa<AutoType>(T) || 2690a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith cast<AutoType>(T)->isDecltypeAuto())) { 26918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 269234b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 269334b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 269434b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 269534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 269654655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = S.GetTypeFromParser(FTI.getTrailingReturnType(), &TInfo); 269754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (T.isNull()) { 269854655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith // An error occurred parsing the trailing return type. 269954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = Context.IntTy; 270054655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith D.setInvalidType(true); 270154655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } 270234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 270334b41d939a1328f484511c6002ba2456db879a29Richard Smith } 270434b41d939a1328f484511c6002ba2456db879a29Richard Smith 2705e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2706e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2707e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2708e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2709e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2710e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2711e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2712e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2713e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2714e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 27158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2716e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2717e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2718e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2719e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2720aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2721aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2722aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 272319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 272419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 272519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), diag::err_opencl_half_return) << T; 272619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 272719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 272819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 272919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), 273019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 1; 273119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 273219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2733aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2734aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 2735ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 2736ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 2737ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 2738ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation DiagLoc, FixitLoc; 2739ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2740ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = TInfo->getTypeLoc().getLocStart(); 2741ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(TInfo->getTypeLoc().getLocEnd()); 2742ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } else { 2743ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = D.getDeclSpec().getTypeSpecTypeLoc(); 2744ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(D.getDeclSpec().getLocEnd()); 2745ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2746ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman S.Diag(DiagLoc, diag::err_object_cannot_be_passed_returned_by_value) 2747ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << 0 << T 2748ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << FixItHint::CreateInsertion(FixitLoc, "*"); 2749ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2750ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman T = Context.getObjCObjectPointerType(T); 2751ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2752ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TypeLocBuilder TLB; 2753ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLB.pushFullCopy(TInfo->getTypeLoc()); 2754ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman ObjCObjectPointerTypeLoc TLoc = TLB.push<ObjCObjectPointerTypeLoc>(T); 2755ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLoc.setStarLoc(FixitLoc); 2756ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TInfo = TLB.getTypeSourceInfo(Context, T); 2757ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2758ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2759ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman D.setInvalidType(true); 2760ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2761ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 27625291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 27635291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 27648c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if ((T.getCVRQualifiers() || T->isAtomicType()) && 27658c952cd40ccec9d720931f27e7d722fed207d536Richard Smith !(S.getLangOpts().CPlusPlus && 27668c952cd40ccec9d720931f27e7d722fed207d536Richard Smith (T->isDependentType() || T->isRecordType()))) 27678c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredFunctionQualifiers(S, T, D, chunkIndex); 2768d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 276902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // Objective-C ARC ownership qualifiers are ignored on the function 277002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // return type (by type canonicalization). Complain if this attribute 277102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // was written here. 277202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (T.getQualifiers().hasObjCLifetime()) { 277302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor SourceLocation AttrLoc; 277402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (chunkIndex + 1 < D.getNumTypeObjects()) { 277502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 277602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr = ReturnTypeChunk.getAttrs(); 277702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 277802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 277902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 278002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 278102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 278202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 278302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 278402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isInvalid()) { 278502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr 278602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor = D.getDeclSpec().getAttributes().getList(); 278702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 278802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 278902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 279002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 279102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 279202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 279302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 279402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 279502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isValid()) { 279602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // The ownership attributes are almost always written via 279702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // the predefined 279802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // __strong/__weak/__autoreleasing/__unsafe_unretained. 279902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isMacroID()) 280002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = S.SourceMgr.getImmediateExpansionRange(AttrLoc).first; 280102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 280202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor S.Diag(AttrLoc, diag::warn_arc_lifetime_result_type) 280302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor << T.getQualifiers().getObjCLifetime(); 280402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 280502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 280602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 28078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2808402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2809402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2810b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 28115e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 28128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2813402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2814402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2815402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 28163cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 28173cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2818162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 28198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 28203e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 28213e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 28223cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 2823b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If we see "T var();" or "T var(T());" at block scope, it is probably 2824b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // an attempt to initialize a variable, not a function declaration. 2825b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (FTI.isAmbiguous) 2826b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith warnAboutAmbiguousFunction(S, D, DeclType, T); 2827b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2828ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FunctionType::ExtInfo EI(getCCForDeclaratorChunk(S, D, FTI, chunkIndex)); 2829ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 28308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 28312865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 2832ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Context.getFunctionNoProtoType(T, EI); 28332865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 28342865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 28352865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 28362865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 28378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2838965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2839965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2840965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 28418e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Attrs->getKind() == AttributeList::AT_Overloadable) { 2842965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2843965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2844965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2845965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2846965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2847965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 28488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2849c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 28502865474261a608c7873b87ba4af110d17907896dJohn McCall 28512865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2852788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2853788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 28548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 28552865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 2856d5668a2447c2afeea38815b51a80a5a6ac235599Argyrios Kyrtzidis // Recover by creating a K&R-style function type. 2857ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Context.getFunctionNoProtoType(T, EI); 28582865474261a608c7873b87ba4af110d17907896dJohn McCall break; 28592865474261a608c7873b87ba4af110d17907896dJohn McCall } 28602865474261a608c7873b87ba4af110d17907896dJohn McCall 2861e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2862ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner EPI.ExtInfo = EI; 2863e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 286454655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith EPI.HasTrailingReturn = FTI.hasTrailingReturnType(); 2865e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2866c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2867c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2868c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 286991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 28705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 28715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 28725f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 28732865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28755f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2876f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2877f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2878f85e193739c953358c865005855253af4f68a497John McCall 28795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2880d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 2881c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ArgTy = Param->getType(); 288278c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 28832dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 28845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 28855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 288672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 28872dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 28885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 28895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 28905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 28915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 28928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 28932ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 28948123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 28952ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 28962ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 28978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 28984565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 28992ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 29008123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 29012ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 29022ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 29030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 29048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 29051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29062ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 29072ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 29082ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2909aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2910aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2911aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 291219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 291319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 291419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 291519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_opencl_half_argument) << ArgTy; 291619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 29179dd74c5504c743c96ea3a1d691d6a75ec3a98147John McCall Param->setInvalidDecl(); 291819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 291919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 292019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 292119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 0; 292219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 292319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2924eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2925eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2926a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2927eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2928183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2929eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2930eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2931eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2932eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2933eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 29345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 293556a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 29368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2937f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2938f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2939f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2940f85e193739c953358c865005855253af4f68a497John McCall } 2941f85e193739c953358c865005855253af4f68a497John McCall 294254e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 29435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2944465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2945f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2946f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2947f85e193739c953358c865005855253af4f68a497John McCall 29485f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 294974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<ParsedType, 2> DynamicExceptions; 295074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<SourceRange, 2> DynamicExceptionRanges; 295174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Expr *NoexceptExpr = 0; 295291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 29538b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 295474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // FIXME: It's rather inefficient to have to split into two vectors 295574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // here. 295674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor unsigned N = FTI.NumExceptions; 295774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.reserve(N); 295874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.reserve(N); 295974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor for (unsigned I = 0; I != N; ++I) { 296074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.push_back(FTI.Exceptions[I].Ty); 296174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); 2962e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 29638b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 296474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr = FTI.NoexceptExpr; 296574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor } 296691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 296774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor S.checkExceptionSpecification(FTI.getExceptionSpecType(), 296874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 296974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 297074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr, 297174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Exceptions, 297274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor EPI); 297391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2974bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose T = Context.getFunctionType(T, ArgTys, EPI); 29755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 297604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 29775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 29785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2979f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2980f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 29817bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2982f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 29837bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2984edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2985edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 29868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 29878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 29881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 29897bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 299087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 299187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 299287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 29937bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 29944a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 299587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 299687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 299787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 299814aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 299987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 30009f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 30017bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 300287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 300387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 300487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 300591ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 300691ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 300791ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 300891ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 300991ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 301091ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 30117bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 301287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 301387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 3014f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 30158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 3016949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 3017949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 3018949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 3019f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 3020f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3021f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 3022949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 30238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 3024949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 3025f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 3026949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 30272865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 30288cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 3029f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3030f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 3031f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3032f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 3033cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 3034cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 3035cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 3036cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 3037cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 3038c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 3039711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 3040f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclChunk, attrs); 30415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3042971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 30438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 3044183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 3045778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 3046971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 304791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // C++ 8.3.5p4: 3048708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 3049708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 3050708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 3051708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 3052683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 3053683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 3054683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 3055613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 3056613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 3057906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 3058906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 3059613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 3060613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 30618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 3062613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 3063613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 3064613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 3065d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.fct]p6 (w/DR1417): 3066d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // An attempt to specify a function type with a cv-qualifier-seq or a 3067d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // ref-qualifier (including by typedef-name) is ill-formed unless it is: 3068d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type for a non-static member function, 3069d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type to which a pointer to member refers, 3070d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the top-level function type of a function typedef declaration or 3071d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // alias-declaration, 3072d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id in the default argument of a type-parameter, or 3073d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id of a template-argument for a type-parameter 3074d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction && 3075d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !(!FreeFunction && 3076d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static) && 3077d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !IsTypedefName && 3078d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getContext() != Declarator::TemplateTypeArgContext) { 307996a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation Loc = D.getLocStart(); 3080d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceRange RemovalRange; 3081d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith unsigned I; 3082d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (D.isFunctionDeclarator(I)) { 3083d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SmallVector<SourceLocation, 4> RemovalLocs; 3084d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith const DeclaratorChunk &Chunk = D.getTypeObject(I); 3085d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(Chunk.Kind == DeclaratorChunk::Function); 3086d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.hasRefQualifier()) 3087d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); 3088d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Const) 3089d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getConstQualifierLoc()); 3090d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Volatile) 3091d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getVolatileQualifierLoc()); 3092d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // FIXME: We do not track the location of the __restrict qualifier. 3093d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith //if (Chunk.Fun.TypeQuals & Qualifiers::Restrict) 3094d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // RemovalLocs.push_back(Chunk.Fun.getRestrictQualifierLoc()); 3095d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!RemovalLocs.empty()) { 3096d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::sort(RemovalLocs.begin(), RemovalLocs.end(), 3097aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko BeforeThanCompare<SourceLocation>(S.getSourceManager())); 3098d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); 3099d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Loc = RemovalLocs.front(); 3100683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3101683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3102d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3103d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(Loc, diag::err_invalid_qualified_function_type) 3104d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FreeFunction << D.isFunctionDeclarator() << T 3105d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(FnTy) 3106d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FixItHint::CreateRemoval(RemovalRange); 3107d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3108d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Strip the cv-qualifiers and ref-qualifiers from the type. 3109d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 3110d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.TypeQuals = 0; 3111d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.RefQualifier = RQ_None; 3112d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 31130567a79130a251bf464ce21ecf3f8b9fb5207900Reid Kleckner T = Context.getFunctionType(FnTy->getResultType(), FnTy->getArgTypes(), 3114bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose EPI); 3115e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith // Rebuild any parens around the identifier in the function type. 3116e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 3117e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith if (D.getTypeObject(i).Kind != DeclaratorChunk::Paren) 3118e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith break; 3119e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith T = S.BuildParenType(T); 3120e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith } 3121971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 3122971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 3125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 3126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 3127f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclName, attrs); 3128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 3130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 3131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3132148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 3133148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 313491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // as const. 3135148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 3136737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 3137737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 3138737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 313991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If there was an ellipsis in the declarator, the declaration declares a 3140a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 3141a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 3142a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 314391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // A declarator-id or abstract-declarator containing an ellipsis shall 3144a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 3145a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 3146a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 3147a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 3148a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 314991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // [...] When it is part of a parameter-declaration-clause, the 315091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // parameter pack is a function parameter pack (14.5.3). The type T 3151a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 315291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // a template parameter pack; each template parameter pack in T is 3153a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 3154a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3155a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 3156a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 3157a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 315891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(D.getEllipsisLoc(), 3159a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 3160a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 3161a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3162a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 316366874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3164a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3165a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 3166152b4e4652baedfceba1cd8115515629225e713fManuel Klimek 3167a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 3168a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 316991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a template-parameter is a [...] is a parameter-declaration that 3170a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 3171a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 3172a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3173a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 3174a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 3175a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 3176a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 317766874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3178e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 3179e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 318080ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith LangOpts.CPlusPlus11 3181e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 3182e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 3183a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 318491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3185a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 3186a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 3187cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 3188cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 3189a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 31900b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 3191162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 31923e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 3193a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 3194a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 3195a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 3196a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 3197a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 319817b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 3199a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 3200f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 320114f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 32027796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 3203683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 3204a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 3205a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 32068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 3207a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3208a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 3209a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3210a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3211e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 3212bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 3213bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 3214bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 3215bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 3216db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 32178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 32188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 32198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 32218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 32228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 32238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 32248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 32258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 32268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 32278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 32288cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 32308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 32328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 32338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 32348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 32358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount) 32378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 323891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 32398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 32405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 32415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 324231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 324331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 324431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 324531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 324631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 324731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 324831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 324931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 325031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 325131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 325231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 325331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 325431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 325531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 325631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 325731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 325831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 325931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 326031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 326131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 326231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 32638e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 326431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 326531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 326631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 326731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 32683026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 326931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 327031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 327131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 327231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 327331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 327431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 3275624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierLoc *Arg = new (S.Context) IdentifierLoc; 3276624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Arg->Ident = &S.Context.Idents.get(attrStr); 3277624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Arg->Loc = SourceLocation(); 3278624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 3279624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman ArgsUnion Args(Arg); 3280624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 328131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 328231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 328331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 328431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 328531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 3286624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman /*args*/ &Args, 1, AttributeList::AS_GNU); 328731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 328831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 328931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 329031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 329131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 329248d798ce32447607144db70a484cdb99c1180663Benjamin Kramer/// \brief Used for transferring ownership in casts resulting in l-values. 329331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 329431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 329531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 329631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 329731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 329831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 329931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 33006ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 330131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 330231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 330331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 330431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 330531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 330631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 330731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 330831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 330931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 331031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 33116ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 33126ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 331331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 331431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 331531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 331631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 33176ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 33186ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 33196ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 332031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 332131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 332231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 332331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 332431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 332531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 332631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 332731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 33286ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 332931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 333091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier DeclaratorChunk &chunk = D.getTypeObject(inner); 333131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 333231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 333331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 33346ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 333531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 333631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 333731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 333831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 333931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 334031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 334131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 334231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 334331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 334431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 334531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 334631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 334731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 334831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 334931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 335031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 33514e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 335231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 335331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 335431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 335531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 335631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 335731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 335831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 335931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 336014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 336114aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 336214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 336314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 33648e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_AddressSpace; 336514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 33668e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Regparm; 336714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 33688e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_VectorSize; 336914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 33708e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonVectorType; 337114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 33728e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonPolyVectorType; 337314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 33748e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCGC; 3375b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 33768e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCOwnership; 337714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 33788e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NoReturn; 337914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 33808e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_CDecl; 338114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 33828e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_FastCall; 338314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 33848e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_StdCall; 338514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 33868e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ThisCall; 338714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 33888e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pascal; 3389414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 33905b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributedType::attr_pcs_vfp: 33918e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pcs; 3392263366f9241366f29ba65b703120f302490c39ffDerek Schuff case AttributedType::attr_pnaclcall: 3393263366f9241366f29ba65b703120f302490c39ffDerek Schuff return AttributeList::AT_PnaclCall; 339438980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei case AttributedType::attr_inteloclbicc: 339538980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei return AttributeList::AT_IntelOclBicc; 3396e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributedType::attr_ms_abi: 3397e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributeList::AT_MSABI; 3398e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributedType::attr_sysv_abi: 3399e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributeList::AT_SysVABI; 3400aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr32: 3401aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr32; 3402aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr64: 3403aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr64; 3404aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_sptr: 3405aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_SPtr; 3406aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_uptr: 3407aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_UPtr; 340814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 340914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 341014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 341114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 341214aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 341314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 341414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 341514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 341614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 341714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 341814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 341914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 342014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 342114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 342214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 342314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 3424624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (TL.hasAttrExprOperand() && attrs->isArgExpr(0)) 3425624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman TL.setAttrExprOperand(attrs->getArgAsExpr(0)); 3426624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (TL.hasAttrEnumOperand() && attrs->isArgIdent(0)) 3427624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman TL.setAttrEnumOperandLoc(attrs->getArgAsIdent(0)->Loc); 342814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 342914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 343014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 343114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 343214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 343314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 343451bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 343551bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 3436c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 343751bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 3438f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 343951bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 344091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 3441c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 3442f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 344314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 344414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 344514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 344614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 344751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 344851bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 344951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 345051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 345151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 345251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 345351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 345451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 34551de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // FIXME. We should have DS.getTypeSpecTypeEndLoc(). But, it requires 34561de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // addition field. What we have is good enough for dispay of location 34571de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // of 'fixit' on interface name. 34581de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian TL.setNameEndLoc(DS.getLocEnd()); 3459c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 3460c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 3461c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 3462c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 3463c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 3464c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 3465c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 3466c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 3467c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 3468c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 346954e14c4db764c0636160d26c5bbf491637c83a76John McCall 3470c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 347154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 347254e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 347354e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 347454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 347554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 347654e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 347754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 347854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 347954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 348054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 348154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 348254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 348351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 348454e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 348554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 3486c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 348751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 3488833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 3489a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 3490b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3491833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3492833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 3493833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 3494a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 34950daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 3496833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 3497833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3498833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3499e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 3500e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 350139e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ElabTL = OldTL.castAs<ElaboratedTypeLoc>(); 350239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TemplateSpecializationTypeLoc NamedTL = ElabTL.getNamedTypeLoc() 350339e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie .castAs<TemplateSpecializationTypeLoc>(); 3504e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 350544ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } else { 350639e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(OldTL.castAs<TemplateSpecializationTypeLoc>()); 350744ee0a710c59d8e6793189f903bae21c16814324Eli Friedman assert(TL.getRAngleLoc() == OldTL.castAs<TemplateSpecializationTypeLoc>().getRAngleLoc()); 350844ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } 350944ee0a710c59d8e6793189f903bae21c16814324Eli Friedman 3510833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3511cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 3512cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 3513cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3514cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3515cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3516cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 3517cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 3518cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3519cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3520b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 3521cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 3522b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3523cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 3524cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3525ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 3526ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 3527ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 3528ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3529ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 3530ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 3531ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 3532ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3533ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 3534ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3535ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 3536ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 3537ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 3538ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 3539ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 3540ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 3541ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 3542ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 3543ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 3544ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 3545ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 3546ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 3547ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 3548ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3549ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3550e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 3551e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 3552e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 3553253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 3554e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 3555b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3556e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 355739e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<ElaboratedTypeLoc>()); 3558e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 3559e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3560e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 356138a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara TL.setElaboratedKeywordLoc(Keyword != ETK_None 356238a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ? DS.getTypeSpecTypeLoc() 356338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara : SourceLocation()); 3564e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 35659e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 3566e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 3567e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3568e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 356966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 357066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 357166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 357266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 357339e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<DependentNameTypeLoc>()); 357433500955d731c73717af52088b7fc0e7a85681e7John McCall } 357533500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 357633500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 357766581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 357866581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 357966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 358066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 358139e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy( 358239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TInfo->getTypeLoc().castAs<DependentTemplateSpecializationTypeLoc>()); 35830daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 35840daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 35850daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 3586e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3587b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 35884cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc can come from either an _Atomic(...) type specifier 35894cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // or an _Atomic qualifier. 35904cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (DS.getTypeSpecType() == DeclSpec::TST_atomic) { 35914cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getTypeSpecTypeLoc()); 35924cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(DS.getTypeofParensRange()); 359391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 35944cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeSourceInfo *TInfo = 0; 35954cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 35964cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert(TInfo); 35974cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 35984cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } else { 35994cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getAtomicSpecLoc()); 36004cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No parens, to indicate this was spelled as an _Atomic qualifier. 36014cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(SourceRange()); 36024cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Visit(TL.getValueLoc()); 36034cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 3604b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 3605e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 360651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 360751bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 3608c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 360951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 361051bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 3611eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 361251bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 3613b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 361451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 3615f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 361651bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 3617b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 3618b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 36194adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 362051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 36219f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 362251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 362312df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner void VisitDecayedTypeLoc(DecayedTypeLoc TL) { 362412df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner llvm_unreachable("decayed type locs not expected here!"); 362512df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner } 36264adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3627f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3628f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3629f85e193739c953358c865005855253af4f68a497John McCall } 363051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 363151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 363251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 36334adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 363451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 363551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 363651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 36374adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 363851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 363951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 364051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 36414adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 364251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 364351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3644b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3645b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3646b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3647b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3648b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3649b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3650b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3651b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3652b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3653b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3654b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3655b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 365639e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie DependentNameTypeLoc DNTLoc = ClsTL.castAs<DependentNameTypeLoc>(); 365738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara DNTLoc.setElaboratedKeywordLoc(SourceLocation()); 3658b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3659b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3660b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3661b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3662b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3663b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3664b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3665b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 366639e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ETLoc = ClsTL.castAs<ElaboratedTypeLoc>(); 366738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ETLoc.setElaboratedKeywordLoc(SourceLocation()); 3668b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3669b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3670b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3671b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3672b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3673b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3674b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3675b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3676b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3677b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3678b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3679b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3680b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3681b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3682b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 368351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3684b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 36854adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 368651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 368751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 368854e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 368954e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 369051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 369151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 369251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 369351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 369451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 369551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 369651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 369751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 369851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 369951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 370051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 370151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 370251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 370351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 370451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3705796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3706796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 370751bd803fbdade51d674598ed45da3d54190a656cJohn McCall 370851bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 370959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setLParenLoc(FTI.getLParenLoc()); 371059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setRParenLoc(FTI.getRParenLoc()); 371154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3712d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 371354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 37144adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 371551bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 37164adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3717075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3718075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3719075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3720075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3721075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 37221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 372351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 37249f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 37254adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 372651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 372751bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 37284adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 37294cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smithstatic void fillAtomicQualLoc(AtomicTypeLoc ATL, const DeclaratorChunk &Chunk) { 37304cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SourceLocation Loc; 37314cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith switch (Chunk.Kind) { 37324cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Function: 37334cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Array: 37344cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Paren: 37354cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith llvm_unreachable("cannot be _Atomic qualified"); 37364cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37374cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Pointer: 37384cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Loc = SourceLocation::getFromRawEncoding(Chunk.Ptr.AtomicQualLoc); 37394cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 37404cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37414cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::BlockPointer: 37424cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Reference: 37434cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::MemberPointer: 37444cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // FIXME: Provide a source location for the _Atomic keyword. 37454cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 37464cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 37474cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37484cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setKWLoc(Loc); 37494cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setParensRange(SourceRange()); 37504cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 37514cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 3752a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 375351bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 375451bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 375505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 375605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 375705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 375805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 375905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3760a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 376105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 376205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3763a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3764a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 376551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3766a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3767a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 376839e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie CurrTL.castAs<PackExpansionTypeLoc>().setEllipsisLoc(D.getEllipsisLoc()); 376991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3770a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 377191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 37728ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 37734cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc might be produced by an atomic qualifier in this 37744cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // declarator chunk. 37754cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (AtomicTypeLoc ATL = CurrTL.getAs<AtomicTypeLoc>()) { 37764cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith fillAtomicQualLoc(ATL, D.getTypeObject(i)); 37774cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith CurrTL = ATL.getValueLoc().getUnqualifiedLoc(); 37784cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 37794cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 378039e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie while (AttributedTypeLoc TL = CurrTL.getAs<AttributedTypeLoc>()) { 378114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 378214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 378314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 378414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3785b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 378651bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 37874adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 378891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3789b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3790b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3791b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 379205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 379305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 379405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3795b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3796c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 379705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 379891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3799a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 38004adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 38014adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3802a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3803b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 38041bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 38051bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 38061bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 380791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3808eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3809a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 38101bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 38111bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3812b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 38131bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 38141bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 38151bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 38161bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3817b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 381835d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 381935d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 38201bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 38211bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3822f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 38235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 38245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 38255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 38261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3827d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3828bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 38295153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3830809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 38315912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3832e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3833cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3834cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 38356b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Likewise, we don't want to do this for alias declarations, because 38366b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // we are actually going to build a declaration from this eventually. 38376b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith if (D.getContext() != Declarator::ObjCParameterContext && 38386b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasDeclContext && 38396b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasTemplateContext) 3840cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3841e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 38424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 3843402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 38446d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3845402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3846402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3847b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 38485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 38495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3850e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3851e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3852e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3853e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3854e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3855e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3856e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3857c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3858c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3859c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3860232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3861232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3862c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3863c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 38641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3865c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 38660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3867232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 386829e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 386929e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3870232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3871c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3872e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3873c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3874232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 38751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3876020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3877020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3878020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3879020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3880020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3881020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3882020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3883020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3884232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3885545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3886baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 3887baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 3888e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3889c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3890232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3891624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *ASArgExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 3892232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3893ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3894ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 38959f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 38969f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 38979f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ASArgExpr->getSourceRange(); 3898e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3899c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3900232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3901232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3902efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3903efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3904efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3905efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3906efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3907e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3908efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3909efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3910efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3911efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3912efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 39130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3914efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3915efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 39167348454025693dd20a411c2bcaabd4460cb87559Joerg Sonnenberger << int(Qualifiers::MaxAddressSpace) << ASArgExpr->getSourceRange(); 3917e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3918efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3919efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3920efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 39211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3922f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3923c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3924c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3925d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// Does this type have a "direct" ownership qualifier? That is, 3926d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// is it written like "__strong id", as opposed to something like 3927d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// "typeof(foo)", where that happens to be strong? 3928d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCallstatic bool hasDirectOwnershipQualifier(QualType type) { 3929d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Fast path: no qualifier at all. 3930d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall assert(type.getQualifiers().hasObjCLifetime()); 3931d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3932d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (true) { 3933d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // __strong id 3934d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (const AttributedType *attr = dyn_cast<AttributedType>(type)) { 3935d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (attr->getAttrKind() == AttributedType::attr_objc_ownership) 3936d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3937d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3938d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = attr->getModifiedType(); 3939d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3940d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // X *__strong (...) 3941d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else if (const ParenType *paren = dyn_cast<ParenType>(type)) { 3942d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = paren->getInnerType(); 394391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3944d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // That's it for things we want to complain about. In particular, 3945d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // we do not want to look through typedefs, typeof(expr), 3946d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // typeof(type), or any other way that the type is somehow 3947d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // abstracted. 3948d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else { 394991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3950d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return false; 3951d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3952d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3953d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall} 3954d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3955b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3956f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3957f85e193739c953358c865005855253af4f68a497John McCall/// 3958f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3959b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3960f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3961f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3962e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 3963e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3964dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!type->isDependentType() && !type->isUndeducedType()) { 3965e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 3966e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 3967e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 3968e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3969e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 3970e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 3971e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 3972e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 3973e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 3974e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3975e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3976b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 3977b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Don't accept an ownership attribute in the declspec if it would 3978b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // just be the return type of a block pointer. 3979b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec()) { 3980b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall Declarator &D = state.getDeclarator(); 3981b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (maybeMovePastReturnType(D, D.getNumTypeObjects())) 3982b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return false; 3983b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 3984e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3985f85e193739c953358c865005855253af4f68a497John McCall 3986f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3987440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3988440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3989440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3990f85e193739c953358c865005855253af4f68a497John McCall 3991624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (!attr.isArgIdent(0)) { 39923cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(AttrLoc, diag::err_attribute_argument_type) 39933cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 3994f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3995f85e193739c953358c865005855253af4f68a497John McCall return true; 3996f85e193739c953358c865005855253af4f68a497John McCall } 3997f85e193739c953358c865005855253af4f68a497John McCall 3998d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Consume lifetime attributes without further comment outside of 3999d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // ARC mode. 40004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().ObjCAutoRefCount) 4001d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 4002d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4003624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; 4004f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 4005624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (II->isStr("none")) 4006f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 4007624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("strong")) 4008f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 4009624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("weak")) 4010f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 4011624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("autoreleasing")) 4012f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 4013f85e193739c953358c865005855253af4f68a497John McCall else { 4014440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 4015d068607c136298bec0891d750389a55bac9f5c98Aaron Ballman << attr.getName() << II; 4016f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4017f85e193739c953358c865005855253af4f68a497John McCall return true; 4018f85e193739c953358c865005855253af4f68a497John McCall } 4019f85e193739c953358c865005855253af4f68a497John McCall 4020d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall SplitQualType underlyingType = type.split(); 4021d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4022d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Check for redundant/conflicting ownership qualifiers. 4023d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (Qualifiers::ObjCLifetime previousLifetime 4024d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall = type.getQualifiers().getObjCLifetime()) { 4025d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // If it's written directly, that's an error. 4026d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (hasDirectOwnershipQualifier(type)) { 4027d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 4028d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall << type; 4029d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 4030d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4031d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4032d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Otherwise, if the qualifiers actually conflict, pull sugar off 4033d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // until we reach a type that is directly qualified. 4034d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (previousLifetime != lifetime) { 4035d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // This should always terminate: the canonical type is 4036d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // qualified, so some bit of sugar must be hiding it. 4037d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (!underlyingType.Quals.hasObjCLifetime()) { 4038d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType = underlyingType.getSingleStepDesugaredType(); 4039d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4040d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.removeObjCLifetime(); 4041d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4042d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 4043d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 4044d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.addObjCLifetime(lifetime); 4045f85e193739c953358c865005855253af4f68a497John McCall 4046e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 4047e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 4048e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 4049e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 4050e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 4051e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 4052e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 4053e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 4054e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 4055e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4056fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman S.Diag(AttrLoc, diag::warn_type_attribute_wrong_type) << name 4057fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman << TDS_ObjCObjOrBlock << type; 4058e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4059e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 4060f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 4061e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 4062d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = S.Context.getQualifiedType(underlyingType); 4063f85e193739c953358c865005855253af4f68a497John McCall 4064f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 4065f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 4066440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 4067b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 4068f85e193739c953358c865005855253af4f68a497John McCall origType, type); 4069f85e193739c953358c865005855253af4f68a497John McCall 40709f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 4071f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 40720a7dd788dbef975f35f273c7ab913f480f7edd60John McCall !S.getLangOpts().ObjCARCWeak && !NonObjCPointer) { 4073f85e193739c953358c865005855253af4f68a497John McCall 4074f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 4075f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 4076f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 4077440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 4078440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 4079f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 4080f85e193739c953358c865005855253af4f68a497John McCall } else { 4081440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 4082f85e193739c953358c865005855253af4f68a497John McCall } 4083f85e193739c953358c865005855253af4f68a497John McCall 4084f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4085f85e193739c953358c865005855253af4f68a497John McCall return true; 4086f85e193739c953358c865005855253af4f68a497John McCall } 408791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 408891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Forbid __weak for class objects marked as 4089742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 4090742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 4091b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (const ObjCObjectPointerType *ObjT = 4092b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall type->getAs<ObjCObjectPointerType>()) { 40934e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl()) { 40944e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (Class->isArcWeakrefUnavailable()) { 40954e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 40964e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(ObjT->getInterfaceDecl()->getLocation(), 40974e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith diag::note_class_declared); 40984e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith } 4099742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4100742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4101742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 410291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4103f85e193739c953358c865005855253af4f68a497John McCall return true; 4104f85e193739c953358c865005855253af4f68a497John McCall} 4105f85e193739c953358c865005855253af4f68a497John McCall 4106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 4107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 4108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 4109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 4110711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 4111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4113711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4114711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 4116711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 4117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 4118711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 4119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 4122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 4123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4125d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 4126624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 4127d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 4128624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (!attr.isArgIdent(0)) { 41293cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_argument_type) 41303cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 4131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4133ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 41340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 4135624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (attr.getNumArgs() > 1) { 4136baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4137baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << attr.getName() << 1; 4138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4139711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4140d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 4141624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 4142624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman IdentifierInfo *II = attr.getArgAsIdent(0)->Ident; 4143624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (II->isStr("weak")) 41440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 4145624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman else if (II->isStr("strong")) 41460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 4147d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 4148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 4149d068607c136298bec0891d750389a55bac9f5c98Aaron Ballman << attr.getName() << II; 4150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4152d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 41531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 415414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 415514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 415614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 415714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 415814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 415914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 416014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 416114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 4162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4163d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 4164d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 4165e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 4166e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 4167e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 4168e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 4169e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 4170e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 4171e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 4172e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 4173e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 4174e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 4175e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 4176e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 4177e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 4178e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 4179e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 4180e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 4181e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 4182e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 4183e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 4184e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4185e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4186e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 4187e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 41885f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 4189e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4190e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 4191e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 4192e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 4193e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 4194e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 4195e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4196e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 4197e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 4198e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 4199e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 4200e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 4201e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 4202e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 4203e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 4204e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 4205e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 4206e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 4207e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 4208e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 4209e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 4210e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 4211e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 4212e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 4213e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 4214e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 4215e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4216e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4217e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4218e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 4219e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 4220e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4221e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4222e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4223e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4224e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 4225e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 4226e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4227e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 4228e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 4229e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 4230e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4231e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 4232e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 4233e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4234e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4235e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 4236e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 4237e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 4238e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 4239e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4240e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 4241e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 4242e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 4243e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4244e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 4245200fa53fd420aa8369586f569dbece04930ad6a3John McCall if (SplitOld.Quals.empty()) 4246200fa53fd420aa8369586f569dbece04930ad6a3John McCall return wrap(C, SplitOld.Ty, I); 4247200fa53fd420aa8369586f569dbece04930ad6a3John McCall return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); 4248e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4249e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4250e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 4251e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 4252e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4253e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 4254e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 4255e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 4256e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 4257e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 4258e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4259e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 4260e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 4261e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 4262e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4263e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4264e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 4265e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 4266e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 4267e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4268e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4269e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 4270e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 4271e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 4272e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4273e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4274e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 4275e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 4276e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 4277e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 4278e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4279e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4280e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 4281e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 4282e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 4283e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 4284e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 4285e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 4286e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 4287e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4288e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4289e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4290e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 4291e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4292e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4293e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 4294e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4295aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballmanstatic bool handleMSPointerTypeQualifierAttr(TypeProcessingState &State, 4296aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList &Attr, 4297aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType &Type) { 4298aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Sema &S = State.getSema(); 4299aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4300aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList::Kind Kind = Attr.getKind(); 4301aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType Desugared = Type; 4302aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman const AttributedType *AT = dyn_cast<AttributedType>(Type); 4303aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman while (AT) { 4304aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind CurAttrKind = AT->getAttrKind(); 4305aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4306aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot specify duplicate type attributes, so if the attribute has 4307aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // already been applied, flag it. 4308aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (getAttrListKind(CurAttrKind) == Kind) { 4309aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::warn_duplicate_attribute_exact) 4310aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << Attr.getName(); 4311aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4312aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4313aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4314aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot have both __sptr and __uptr on the same type, nor can you 4315aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // have __ptr32 and __ptr64. 4316aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if ((CurAttrKind == AttributedType::attr_ptr32 && 4317aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr64) || 4318aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_ptr64 && 4319aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr32)) { 4320aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4321aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__ptr32'" << "'__ptr64'"; 4322aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4323aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } else if ((CurAttrKind == AttributedType::attr_sptr && 4324aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_UPtr) || 4325aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_uptr && 4326aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_SPtr)) { 4327aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4328aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__sptr'" << "'__uptr'"; 4329aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4330aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4331aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4332aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Desugared = AT->getEquivalentType(); 4333aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AT = dyn_cast<AttributedType>(Desugared); 4334aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4335aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4336aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // Pointer type qualifiers can only operate on pointer types, but not 4337aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // pointer-to-member types. 4338aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!isa<PointerType>(Desugared)) { 4339aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), Type->isMemberPointerType() ? 4340aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_no_member_pointers : 4341aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_pointers_only) << Attr.getName(); 4342aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4343aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4344aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4345aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind TAK; 4346aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman switch (Kind) { 4347aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman default: llvm_unreachable("Unknown attribute kind"); 4348aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr32: TAK = AttributedType::attr_ptr32; break; 4349aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr64: TAK = AttributedType::attr_ptr64; break; 4350aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_SPtr: TAK = AttributedType::attr_sptr; break; 4351aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_UPtr: TAK = AttributedType::attr_uptr; break; 4352aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4353aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4354aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Type = S.Context.getAttributedType(TAK, Type, Type); 4355aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return false; 4356aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman} 4357aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 43585b92696c8f1f8ef943ad87397b95c031b5787305Reid Klecknerstatic AttributedType::Kind getCCTypeAttrKind(AttributeList &Attr) { 43595b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner assert(!Attr.isInvalid()); 43605b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner switch (Attr.getKind()) { 43615b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner default: 43625b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("not a calling convention attribute"); 43635b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_CDecl: 43645b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_cdecl; 43655b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_FastCall: 43665b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_fastcall; 43675b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_StdCall: 43685b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_stdcall; 43695b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_ThisCall: 43705b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_thiscall; 43715b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pascal: 43725b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pascal; 43735b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pcs: { 4374fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // The attribute may have had a fixit applied where we treated an 4375fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // identifier as a string literal. The contents of the string are valid, 4376fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman // but the form may not be. 4377fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman StringRef Str; 4378fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman if (Attr.isArgExpr(0)) 4379fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman Str = cast<StringLiteral>(Attr.getArgAsExpr(0))->getString(); 4380fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman else 4381fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman Str = Attr.getArgAsIdent(0)->Ident->getName(); 4382fbf6f5c8ac0a3feb9a5add5f9221a21f68ca487aAaron Ballman return llvm::StringSwitch<AttributedType::Kind>(Str) 43835b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs", AttributedType::attr_pcs) 43845b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs-vfp", AttributedType::attr_pcs_vfp); 43855b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 43865b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_PnaclCall: 43875b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pnaclcall; 43885b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_IntelOclBicc: 43895b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_inteloclbicc; 4390e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_MSABI: 4391e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributedType::attr_ms_abi; 4392e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis case AttributeList::AT_SysVABI: 4393e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis return AttributedType::attr_sysv_abi; 43945b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 43955b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("unexpected attribute kind!"); 43965b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner} 43975b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner 4398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 4399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 4400711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 4401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4404e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 44062455636163fdd18581d7fdae816433f886d88213Mike Stump 44078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NoReturn) { 4408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 440904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 4410e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4411e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 4412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4414425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4415425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 4416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 4417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 4420425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4421f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 4422f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 44238e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NSReturnsRetained) { 44244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(S.getLangOpts().ObjCAutoRefCount && 4425f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 4426f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 4427f85e193739c953358c865005855253af4f68a497John McCall 4428f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 4429f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 4430f85e193739c953358c865005855253af4f68a497John McCall return false; 4431f85e193739c953358c865005855253af4f68a497John McCall 4432f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 4433f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 4434f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4435f85e193739c953358c865005855253af4f68a497John McCall return true; 4436f85e193739c953358c865005855253af4f68a497John McCall } 4437f85e193739c953358c865005855253af4f68a497John McCall 44388e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_Regparm) { 4439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 4440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 4441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 44421e030eb1194763b42c1752723be23b1515f48981John McCall 4443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 4444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4445008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 44461e030eb1194763b42c1752723be23b1515f48981John McCall 4447ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 4448ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 4449ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 4450ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 4451ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4452ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 4453ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 4454ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4455ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4456ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 4457ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 445891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier FunctionType::ExtInfo EI = 4459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 4460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4462425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 4463425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 446482bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman // Delay if the type didn't work out to a function. 446582bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman if (!unwrapped.isFunctionType()) return false; 446682bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman 446704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 4468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 4469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 4470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4471f82b4e85b1219295cad4b5851b035575bc293010John McCall 4472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 4473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 4474ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner AttributedType::Kind CCAttrKind = getCCTypeAttrKind(attr); 447504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 4476e8519c31a6ef853b627d557702ac1890f18ce2c9Charles Davis if (CCOld != CC) { 4477ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Error out on when there's already an attribute on the type 4478ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // and the CCs don't match. 4479ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const AttributedType *AT = S.getCallingConvAttributedType(type); 4480ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (AT && AT->getAttrKind() != CCAttrKind) { 4481ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4482ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner << FunctionType::getNameForCallConv(CC) 4483ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner << FunctionType::getNameForCallConv(CCOld); 4484ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner attr.setInvalid(); 4485ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return true; 4486ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 448704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 448804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 448904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 449004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 4491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 4492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 449304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 449604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 449704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 4498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 449904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 4500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 450104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 450404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4505ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 4506ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 4507a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 4508ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4509ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 4510ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 4511ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4512ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4513ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 451404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4515f82b4e85b1219295cad4b5851b035575bc293010John McCall 45165b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // Modify the CC from the wrapped function type, wrap it all back, and then 45175b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // wrap the whole thing in an AttributedType as written. The modified type 45185b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // might have a different CC if we ignored the attribute. 4519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 45205b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner QualType Equivalent = 45215b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4522ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner type = S.Context.getAttributedType(CCAttrKind, type, Equivalent); 4523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4524f82b4e85b1219295cad4b5851b035575bc293010John McCall} 4525f82b4e85b1219295cad4b5851b035575bc293010John McCall 4526ef072033876e295ec5d3402f8730a3ae358ad815Reid Klecknervoid Sema::adjustMemberFunctionCC(QualType &T) { 4527ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner const FunctionType *FT = T->castAs<FunctionType>(); 4528ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner bool IsVariadic = (isa<FunctionProtoType>(FT) && 4529ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner cast<FunctionProtoType>(FT)->isVariadic()); 4530ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner CallingConv CC = FT->getCallConv(); 4531ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner CallingConv DefaultCC = 4532ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner Context.getDefaultCallingConvention(IsVariadic, /*IsCXXMethod=*/false); 4533ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (CC != DefaultCC) 4534ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return; 4535ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4536ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // Check if there was an explicit attribute, but only look through parens. 4537ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // The intent is to look for an attribute on the current declarator, but not 4538ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // one that came from a typedef. 4539ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner QualType R = T.IgnoreParens(); 4540ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner while (const AttributedType *AT = dyn_cast<AttributedType>(R)) { 4541ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner if (AT->isCallingConv()) 4542ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner return; 4543ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner R = AT->getModifiedType().IgnoreParens(); 4544ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner } 4545ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4546ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // FIXME: This loses sugar. This should probably be fixed with an implicit 4547ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner // AttributedType node that adjusts the convention. 4548ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner CC = Context.getDefaultCallingConvention(IsVariadic, /*IsCXXMethod=*/true); 4549ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FT = Context.adjustFunctionType(FT, FT->getExtInfo().withCallingConv(CC)); 4550ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner FunctionTypeUnwrapper Unwrapped(*this, T); 4551ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner T = Unwrapped.wrap(*this, FT); 4552ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner} 4553ef072033876e295ec5d3402f8730a3ae358ad815Reid Kleckner 4554207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 4555207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 4556207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 4557207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 4558207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 4559207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 4560baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4561baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4562207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4563207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4564207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4565624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *sizeExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 4566207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 4567207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4568207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 45699f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 45709f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 45719f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4572207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4573207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4574207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4575207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 4576207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 4577207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 4578207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 4579207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 4580207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4581207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4582207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 4583207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4584207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 4585207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 4586207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4587207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4588207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4589207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 4590207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 45916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 45926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 45936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 45946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 45956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 45966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 45976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 4598788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 4599788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 460056affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 46016e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 4602baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4603baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4604e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46056e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 4607624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *sizeExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 46086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 4609ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4610ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 46119f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 46129f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 46139f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4614e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46156e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 4617b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman // The base type must be integer (not Boolean or enumeration) or float, and 4618b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman // can't already be a vector. 4619b445cb9662067b7c7586815937b07828ede9bb49Aaron Ballman if (!CurType->isBuiltinType() || CurType->isBooleanType() || 46201652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 46216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4622e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 46256e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 46266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 46276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 46286e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 46296e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 46306e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 46316e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 46326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4633e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46346e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 46361652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize / typeSize)) { 46371652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_size_too_large) 46381652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << sizeExpr->getSourceRange(); 46391652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Attr.setInvalid(); 46401652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return; 46411652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 46426e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 46436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 46446e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4645e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 46466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 46476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 46486e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 46496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 46506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 4651788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 4652e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 46536e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 46546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 46554ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 46564ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 465791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierstatic void HandleExtVectorTypeAttr(QualType &CurType, 465891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier const AttributeList &Attr, 46594ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 4660624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman // check the attribute arguments. 4661624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (Attr.getNumArgs() != 1) { 4662624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4663624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman << Attr.getName() << 1; 4664624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman return; 4665624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman } 4666624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman 46674ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 466891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 46694ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 4670624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman if (Attr.isArgIdent(0)) { 46714ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 4672e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 46734ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 4674624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman id.setIdentifier(Attr.getArgAsIdent(0)->Ident, Attr.getLoc()); 4675e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 4676e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, TemplateKWLoc, 4677e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara id, false, false); 46784ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 46794ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 468091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 46814ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 46824ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 4683624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman sizeExpr = Attr.getArgAsExpr(0); 46844ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 468591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 46864ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 46874ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 46884ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 46894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 46904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 46914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 4692b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northoverstatic bool isPermittedNeonBaseType(QualType &Ty, 4693b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover VectorType::VectorKind VecKind, 4694b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover bool IsAArch64) { 4695b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover const BuiltinType *BTy = Ty->getAs<BuiltinType>(); 4696b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (!BTy) 4697b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return false; 4698b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4699b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (VecKind == VectorType::NeonPolyVector) { 4700b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64) { 4701b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch64 polynomial vectors are unsigned 4702b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::UChar || 4703b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort; 4704b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } else { 4705b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch32 polynomial vector are signed. 4706b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4707b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short; 4708b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4709b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4710b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4711b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // Non-polynomial vector types: the usual suspects are allowed, as well as 4712b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // float64_t on AArch64. 4713b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64 && BTy->getKind() == BuiltinType::Double) 4714b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return true; 4715b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4716b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4717b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UChar || 4718b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short || 4719b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort || 4720b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Int || 4721b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UInt || 4722b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::LongLong || 4723b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::ULongLong || 4724b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Float || 4725b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Half; 4726b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover} 4727b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 47284211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 47294211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 47304211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 47314211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 47324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 47334211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 47344211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 47354211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 47364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 47379f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::VectorKind VecKind) { 47384211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 47394211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 4740baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4741baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 47424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 47434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 47444211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 47454211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 4746624421f98d8fcb8ed8ebc406da41217682159aa8Aaron Ballman Expr *numEltsExpr = static_cast<Expr *>(Attr.getArgAsExpr(0)); 47474211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 47484211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 47494211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 47509f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 47519f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 47529f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << numEltsExpr->getSourceRange(); 47534211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 47544211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 47554211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 47564211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 4757e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover llvm::Triple::ArchType Arch = 4758b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover S.Context.getTargetInfo().getTriple().getArch(); 4759e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover if (!isPermittedNeonBaseType(CurType, VecKind, 4760e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Arch == llvm::Triple::aarch64)) { 4761e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4762e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Attr.setInvalid(); 4763e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover return; 47644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 4765e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover 47664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 47674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 47684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 47694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 47704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 47714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 47724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 47734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 47744211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 47754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 47764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 47774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 47784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 4779711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 4780f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TypeAttrLocation TAL, AttributeList *attrs) { 4781c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 4782c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 4783c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 4784c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 4785711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4786711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 4787711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 4788711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 4789711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 4790711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4791e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 4792711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 4793e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 4794e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 4795cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute()) { 4796cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // [[gnu::...]] attributes are treated as declaration attributes, so may 4797cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // not appertain to a DeclaratorChunk, even if we handle them as type 4798cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // attributes. 4799cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.getScopeName() && attr.getScopeName()->isStr("gnu")) { 4800cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (TAL == TAL_DeclChunk) { 4801cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4802cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_cxx11_gnu_attribute_on_type) 4803cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4804cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4805cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4806cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } else if (TAL != TAL_DeclChunk) { 4807cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // Otherwise, only consider type processing for a C++11 attribute if 4808cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // it's actually been applied to a type. 4809cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4810cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4811f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith } 4812f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith 4813b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 4814b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 4815711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 4816cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith default: 4817cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // A C++11 attribute on a declarator chunk must appertain to a type. 4818d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) { 4819cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), diag::err_attribute_not_type_attr) 4820d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith << attr.getName(); 4821d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4822d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith } 4823cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4824cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4825cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::UnknownAttribute: 4826cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) 4827cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4828cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_unknown_attribute_ignored) 4829cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4830cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4831cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4832cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::IgnoredAttribute: 4833cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 483404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 48358e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MayAlias: 4836682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 4837682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 4838682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 4839682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 48408e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AddressSpace: 4841711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 4842e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4843c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 4844711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 4845711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 4846711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 4847e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4848d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 48498e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VectorSize: 4850711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 4851e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4852f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 48538e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExtVectorType: 4854a4fa9008988985f9cf01712a99ddd923aea278a0Richard Smith HandleExtVectorTypeAttr(type, attr, state.getSema()); 4855e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 48564ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 48578e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonVectorType: 4858711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 48599f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonVector); 4860e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 48614211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 48628e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonPolyVectorType: 4863711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 48649f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonPolyVector); 4865e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 48664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 48678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLImageAccess: 4868207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 4869e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4870207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4871207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 4872d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith case AttributeList::AT_Win64: 4873d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4874d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith break; 4875aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman MS_TYPE_ATTRS_CASELIST: 4876aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!handleMSPointerTypeQualifierAttr(state, attr, type)) 4877aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman attr.setUsedAsTypeAttr(); 4878aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman break; 4879d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith 48808e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 48814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 4882cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4883f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 4884f85e193739c953358c865005855253af4f68a497John McCall 4885711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 4886e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4887e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4888711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 4889711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 4890f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith if (TAL == TAL_DeclSpec) 4891711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 4892711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4893711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 4894711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 4895711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 48966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 4897c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 4898711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 4899232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 4900232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 4901e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 4902e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4903e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 4904e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 4905e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 4906e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 4907e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 4908e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4909e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 4910d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// \param Diagnoser The object that will emit a diagnostic if the type is 4911d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// incomplete. 4912e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4913e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 4914e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 4915f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, TypeDiagnoser &Diagnoser){ 4916e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 4917e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4918e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 4919e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 492063f25e6719e3920a04f66a80958b792ac268aeddRichard Smith // FIXME: The definition might not be visible. 4921e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 4922e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4923e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 4924e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 4925e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 4926e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 4927e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4928e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 4929e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 4930e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 493191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 493236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 493336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 493436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 493536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 493636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 493736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 493836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 493991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 494091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // This is a modification of an existing AST node. Notify 494136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 494236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 494336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 494436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 494591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 494636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 494791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 494836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 494936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 495036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 495136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 495236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 495336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 495436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 495536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 4956f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 495791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4958e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 4959e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 4960e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 4961e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4962e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4963e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4964e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4965e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4966e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 4967e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 4968e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4969e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 4970e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 4971e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 4972e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4973d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(E->getExprLoc(), T, Diagnoser); 4974d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4975d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4976d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregornamespace { 4977f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor struct TypeDiagnoserDiag : Sema::TypeDiagnoser { 4978d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor unsigned DiagID; 497991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4980f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag(unsigned DiagID) 4981f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor : Sema::TypeDiagnoser(DiagID == 0), DiagID(DiagID) {} 498291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4983d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor virtual void diagnose(Sema &S, SourceLocation Loc, QualType T) { 4984d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Suppressed) return; 4985d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor S.Diag(Loc, DiagID) << T; 4986d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor } 4987d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor }; 4988d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4989d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4990d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, unsigned DiagID) { 4991f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 4992d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteExprType(E, Diagnoser); 4993e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 4994e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 49951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 49964ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 49974ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 49984ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 499986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 500086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 500186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 500286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 500386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 50044ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50054ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 50064ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 50074ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50084ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 50094ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 50104ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 50114ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 501291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 5013f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 5014658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (RequireCompleteTypeImpl(Loc, T, Diagnoser)) 5015658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return true; 5016658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (const TagType *Tag = T->getAs<TagType>()) { 5017658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (!Tag->getDecl()->isCompleteDefinitionRequired()) { 5018658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Tag->getDecl()->setCompleteDefinitionRequired(); 5019658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Consumer.HandleTagDeclRequiredDefinition(Tag->getDecl()); 5020658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 5021658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 5022658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return false; 5023658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie} 5024658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie 5025658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie/// \brief The implementation of RequireCompleteType 5026658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikiebool Sema::RequireCompleteTypeImpl(SourceLocation Loc, QualType T, 5027658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie TypeDiagnoser &Diagnoser) { 5028573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 5029573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 5030690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 5031690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 5032690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 50331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 5034690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 5035690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 50364ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 5037d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 5038d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 5039d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 5040b775100fea6d8955149897dae1adca50ca471d17Richard Smith if (!Diagnoser.Suppressed && Def && !LookupResult::isVisible(*this, Def)) { 5041d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 504291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // emitted the error once for this type. There's no usefulness in 5043d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 5044d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 5045d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 5046ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Module *Owner = Def->getOwningModule(); 5047ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Loc, diag::err_module_private_definition) 5048ca2ab45341c448284cf93770018c717810575f86Douglas Gregor << T << Owner->getFullModuleName(); 5049ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 5050ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 5051ca2ab45341c448284cf93770018c717810575f86Douglas Gregor if (!isSFINAEContext()) { 5052ca2ab45341c448284cf93770018c717810575f86Douglas Gregor // Recover by implicitly importing this module. 5053ca2ab45341c448284cf93770018c717810575f86Douglas Gregor createImplicitModuleImport(Loc, Owner); 5054d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 5055d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 505691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 50574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 5058d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 50594ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 5060b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // FIXME: If there's an unimported definition of this type in a module (for 5061b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // instance, because we forward declared it, then imported the definition), 5062b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // import that definition now. 5063b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // FIXME: What about other cases where an import extends a redeclaration 5064b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // chain for a declaration that can be accessed through a mechanism other 5065b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // than name lookup (eg, referenced in a template, or a variable whose type 5066b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith // could be completed by the module)? 5067b7165589b2eafc4b48d09a5914e21604ae580256Richard Smith 5068bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 5069bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 507091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5071bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 5072bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 5073bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 5074bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 5075bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 5076bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 5077bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 5078bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 5079bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 5080bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 5081bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5082bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5083bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 5084bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 5085bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 5086bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 508791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5088bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 5089bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 5090bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 5091bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 5092bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 5093bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 5094bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 509591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5096d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 5097923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 5098923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 5099923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 5100e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor while (const ConstantArrayType *Array 5101e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor = Context.getAsConstantArrayType(MaybeTemplate)) 5102923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 5103923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 51042943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 5105d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 5106972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 5107972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 5108d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 5109d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 51101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 5111d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 5112564f4c5664f552becbd05407611a92754c40e641Richard Smith CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass(); 5113564f4c5664f552becbd05407611a92754c40e641Richard Smith if (!Rec->isBeingDefined() && Pattern) { 5114564f4c5664f552becbd05407611a92754c40e641Richard Smith MemberSpecializationInfo *MSI = Rec->getMemberSpecializationInfo(); 5115564f4c5664f552becbd05407611a92754c40e641Richard Smith assert(MSI && "Missing member specialization information?"); 5116357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 5117564f4c5664f552becbd05407611a92754c40e641Richard Smith if (MSI->getTemplateSpecializationKind() != TSK_ExplicitSpecialization) 5118f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 5119f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 5120f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 5121d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 5122d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5123d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5124d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 51252943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 5126d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Diagnoser.Suppressed) 51275842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 5128d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 51294ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 5130cac18add73d095eaab600aefe27ea7174aec4922Nico Weber if (Ident___float128 && 5131cac18add73d095eaab600aefe27ea7174aec4922Nico Weber T == Context.getTypeDeclType(Context.getFloat128StubType())) { 5132cac18add73d095eaab600aefe27ea7174aec4922Nico Weber Diag(Loc, diag::err_typecheck_decl_incomplete_type___float128); 5133cac18add73d095eaab600aefe27ea7174aec4922Nico Weber return true; 5134cac18add73d095eaab600aefe27ea7174aec4922Nico Weber } 5135cac18add73d095eaab600aefe27ea7174aec4922Nico Weber 5136d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 513791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 51384ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 513901620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 51404ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 51411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 51424ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 51434ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 5144b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 514591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5146b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 5147b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 5148b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 51494ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 51505d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain // If we have external information that we can use to suggest a fix, 51515d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain // produce a note. 51525d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain if (ExternalSource) 51535d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain ExternalSource->MaybeDiagnoseMissingCompleteType(Loc, T); 51545d937b3fe7832f8ffa0a258d1b037c64708e97c1Kaelyn Uhrain 51554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 51564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 5157e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 5158fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 515991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier unsigned DiagID) { 5160f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5161d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(Loc, T, Diagnoser); 5162fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 5163fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 51646666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \brief Get diagnostic %select index for tag kind for 51656666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// literal type diagnostic message. 51666666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// WARNING: Indexes apply to particular diagnostics only! 51676666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// 51686666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \returns diagnostic %select index. 5169f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matosstatic unsigned getLiteralDiagFromTagKind(TagTypeKind Tag) { 51706666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos switch (Tag) { 5171f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Struct: return 0; 5172f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Interface: return 1; 5173f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Class: return 2; 5174f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos default: llvm_unreachable("Invalid tag kind for literal type diagnostic!"); 51756666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos } 51766666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos} 51776666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos 51789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 51799f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 51809f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 51819f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 51829f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 51839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 51849f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 51859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 51869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 51879f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 51889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 51899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 51909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 51919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 5192f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor/// @param Diagnoser Emits a diagnostic if T is not a literal type. 51939f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 51949f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 51959f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 51969f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 5197f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 51989f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 51999f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5200ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman QualType ElemType = Context.getBaseElementType(T); 5201ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman RequireCompleteType(Loc, ElemType, 0); 5202ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 5203a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (T->isLiteralType(Context)) 52049f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 52059f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5206f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor if (Diagnoser.Suppressed) 52079f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52089f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5209f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 52109f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52119f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 52129f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52139f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5214ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman const RecordType *RT = ElemType->getAs<RecordType>(); 52159f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 52169f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 52199f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5220c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // A partially-defined class type can't be a literal type, because a literal 5221c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // class type must have a trivial destructor (which can't be checked until 5222c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // the class definition is complete). 5223c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith if (!RD->isCompleteDefinition()) { 5224d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor RequireCompleteType(Loc, ElemType, diag::note_non_literal_incomplete, T); 5225ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman return true; 5226c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith } 5227ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 52289f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 522986c3ae46250cdcc57778c27826060779a92f3815Richard Smith // cannot have any constexpr constructors or a trivial default constructor, 523086c3ae46250cdcc57778c27826060779a92f3815Richard Smith // so is non-literal. This is better to diagnose than the resulting absence 523186c3ae46250cdcc57778c27826060779a92f3815Richard Smith // of constexpr constructors. 52329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 52339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 52346666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos << getLiteralDiagFromTagKind(RD->getTagKind()) << RD->getNumVBases(); 52359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 52369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 523796a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 52389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 523986c3ae46250cdcc57778c27826060779a92f3815Richard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor() && 524086c3ae46250cdcc57778c27826060779a92f3815Richard Smith !RD->hasTrivialDefaultConstructor()) { 52419f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 52429f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 52439f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 52449f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 5245a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context)) { 524696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 52479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 52489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 52499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 52519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 52529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 52539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 5254a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context) || 5255262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie I->getType().isVolatileQualified()) { 5256262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Diag(I->getLocation(), diag::note_non_literal_field) 5257581deb3da481053c4993c7600f97acf7768caac5David Blaikie << RD << *I << I->getType() 5258262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << I->getType().isVolatileQualified(); 52599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 52619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 52629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 52639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 52649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 52659f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 52669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 52679f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 52689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52709f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 52719f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 52729f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 5273ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith if (!Dtor->isUserProvided()) 5274ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith SpecialMemberIsTrivial(Dtor, CXXDestructor, /*Diagnose*/true); 52759f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 52769f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 52779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 52789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 52799f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 528091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, unsigned DiagID) { 5281f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5282f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor return RequireLiteralType(Loc, T, Diagnoser); 5283f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor} 5284f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor 5285465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 5286465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 5287465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 5288465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 5289465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 5290e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 5291465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 5292e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 5293465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 5294465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 5295465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 5296465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 5297465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 5298465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 5299465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 5300e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 5301af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 53022a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 5303fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 53042a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 53052a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 53062a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 53072b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 53082b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 5309aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 5310aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 53112b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 5312af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 5313af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5314af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 5315f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// getDecltypeForExpr - Given an expr, will return the decltype for 5316f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// that expression, according to the rules in C++11 5317f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. 5318f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregorstatic QualType getDecltypeForExpr(Sema &S, Expr *E) { 5319f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (E->isTypeDependent()) 5320f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return S.Context.DependentTy; 5321f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 53226d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 53236d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // The type denoted by decltype(e) is defined as follows: 53246d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // 53256d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - if e is an unparenthesized id-expression or an unparenthesized class 532691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // member access (5.2.5), decltype(e) is the type of the entity named 532791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // by e. If there is no such entity, or if e names a set of overloaded 53286d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // functions, the program is ill-formed; 532984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // 533084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // We apply the same rules for Objective-C ivar and property references. 5331f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { 5332f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 5333f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return VD->getType(); 533484dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { 5335f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 5336f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return FD->getType(); 533784dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCIvarRefExpr *IR = dyn_cast<ObjCIvarRefExpr>(E)) { 533884dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return IR->getDecl()->getType(); 533984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCPropertyRefExpr *PR = dyn_cast<ObjCPropertyRefExpr>(E)) { 534084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor if (PR->isExplicitProperty()) 534184dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return PR->getExplicitProperty()->getType(); 5342f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 534384dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor 5344f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // C++11 [expr.lambda.prim]p18: 5345f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // Every occurrence of decltype((x)) where x is a possibly 5346f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // parenthesized id-expression that names an entity of automatic 5347f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // storage duration is treated as if x were transformed into an 5348f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // access to a corresponding data member of the closure type that 5349f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // would have been declared if x were an odr-use of the denoted 5350f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // entity. 5351f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor using namespace sema; 5352f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (S.getCurLambda()) { 5353f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (isa<ParenExpr>(E)) { 5354f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 5355f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 535668932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation()); 535768932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor if (!T.isNull()) 535868932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor return S.Context.getLValueReferenceType(T); 5359f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5360f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5361f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5362f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5363f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 5364f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 53656d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 53666d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // [...] 53676d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor QualType T = E->getType(); 53686d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor switch (E->getValueKind()) { 536991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the 53706d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 53716d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_XValue: T = S.Context.getRValueReferenceType(T); break; 537291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the 53736d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 53746d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_LValue: T = S.Context.getLValueReferenceType(T); break; 53756d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, decltype(e) is the type of e. 53766d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_RValue: break; 53776d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor } 537891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5379f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return T; 5380f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor} 5381f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 53822a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 5383fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 53842a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 53852a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 538691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5387f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return Context.getDecltypeType(E, getDecltypeForExpr(*this, E)); 5388af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5389ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 5390ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 5391ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 5392ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 5393ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 5394ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 5395ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 5396ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 5397ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 5398ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 5399ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 5400ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 5401ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 5402ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 5403ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 5404ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 5405ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5406ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 5407ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 5408ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 5409ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5410ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5411ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 5412ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 5413b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5414b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 5415b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 54168327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // FIXME: It isn't entirely clear whether incomplete atomic types 54178327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // are allowed or not; for simplicity, ban them for the moment. 5418d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, T, diag::err_atomic_specifier_bad_type, 0)) 54198327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith return QualType(); 54208327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith 5421b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 54228327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (T->isArrayType()) 5423b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 5424b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 5425b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 5426b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 5427b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 5428b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 5429b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 5430b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 5431b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 5432b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 5433b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 5434b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 5435b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5436b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 5437b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 5438b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 5439b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5440b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5441b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 5442b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5443b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5444b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 5445b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 5446b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 5447