SemaType.cpp revision e2d20c9a539cdfa75db6382eb5a327a73e5e0e1b
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. 84108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth if (useExpansionLoc && loc.isMacroID() && attr.getParameterName()) { 85834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (attr.getParameterName()->isStr("strong")) { 86834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; 87834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall } else if (attr.getParameterName()->isStr("weak")) { 88834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__weak")) name = "__weak"; 892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 902792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 912792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 92fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman S.Diag(loc, diag::warn_type_attribute_wrong_type) << name << WhichType 93fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman << type; 942792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall} 952792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 96711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 97711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 998e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCGC: \ 1008e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCOwnership 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 1048e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoReturn: \ 1058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: \ 1068e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: \ 1078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: \ 1088e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: \ 1098e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: \ 1108e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Regparm: \ 111263366f9241366f29ba65b703120f302490c39ffDerek Schuff case AttributeList::AT_Pcs: \ 11238980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei case AttributeList::AT_PnaclCall: \ 113aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_IntelOclBicc 114aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 115aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman// Microsoft-specific type qualifiers. 116aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman#define MS_TYPE_ATTRS_CASELIST \ 117aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr32: \ 118aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr64: \ 119aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_SPtr: \ 120aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_UPtr 121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 122711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1397ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall /// Whether we saved the attributes in the decl spec. 1407ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall bool hasSavedAttrs; 1417ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 142711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 1435f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> savedAttrs; 144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 146711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 1475f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> ignoredTypeAttrs; 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 1537ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall trivial(true), hasSavedAttrs(false) {} 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 163b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall bool isProcessingDeclSpec() const { 164b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return chunkIndex == declarator.getNumTypeObjects(); 165b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 166b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 167711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 177b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (isProcessingDeclSpec()) 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 1857ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (hasSavedAttrs) return; 186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 189711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 190711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 1927ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall hasSavedAttrs = true; 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 2045f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<AttributeList*>::const_iterator 205711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 2062792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall i != e; ++i) 2072792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(getSema(), **i, type); 208711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 209711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 210711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 211711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 212711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 213711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 2227ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall assert(hasSavedAttrs); 2237ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 2247ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (savedAttrs.empty()) { 2257ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall getMutableDeclSpec().getAttributes().set(0); 2267ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall return; 2277ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 2287ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 229711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 230711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 231711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 232711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 233711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 234711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 235711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Basically std::pair except that we really want to avoid an 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// implicit operator= for safety concerns. It's also a minor 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// link-time optimization for this to be a private type. 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall struct AttrAndList { 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The attribute. 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &first; 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The head of the list the attribute is currently in. 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&second; 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttrAndList(AttributeList &attr, AttributeList *&head) 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : first(attr), second(head) {} 248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 24904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 25004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 251711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace llvm { 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall template <> struct isPodLike<AttrAndList> { 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall static const bool value = true; 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 26604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 269711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 271711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 272711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 273711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 274711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 275711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 276711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 277711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 278711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 279711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 280711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 281711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 282711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 283711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 285711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 286f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith/// The location of a type attribute. 287f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smithenum TypeAttrLocation { 288f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is in the decl-specifier-seq. 289f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclSpec, 290f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is part of a DeclaratorChunk. 291f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclChunk, 292f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith /// The attribute is immediately after the declaration's name. 293f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TAL_DeclName 294f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith}; 295f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith 296711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 297f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith QualType &type, TypeAttrLocation TAL, 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 300711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 304aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballmanstatic bool handleMSPointerTypeQualifierAttr(TypeProcessingState &state, 305aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList &attr, 306aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType &type); 307aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 308711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 311b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 312f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, QualType &type); 313f85e193739c953358c865005855253af4f68a497John McCall 314711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 3168e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_ObjCGC) 317f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 3188e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt assert(attr.getKind() == AttributeList::AT_ObjCOwnership); 319b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return handleObjCOwnershipTypeAttr(state, attr, type); 320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 321711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 322b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// Given the index of a declarator chunk, check whether that chunk 323b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// directly specifies the return type of a function and, if so, find 324b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// an appropriate place for it. 325b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// 326b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// \param i - a notional index which the search will start 327b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall/// immediately inside 328b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCallstatic DeclaratorChunk *maybeMovePastReturnType(Declarator &declarator, 329b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall unsigned i) { 330b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall assert(i <= declarator.getNumTypeObjects()); 331b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 332b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk *result = 0; 333b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 334b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // First, look inwards past parens for a function declarator. 335b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall for (; i != 0; --i) { 336b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk &fnChunk = declarator.getTypeObject(i-1); 337b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall switch (fnChunk.Kind) { 338b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Paren: 339b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue; 340b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 341b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we find anything except a function, bail out. 342b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Pointer: 343b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: 344b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Array: 345b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Reference: 346b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::MemberPointer: 347b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 348b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 349b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we do find a function declarator, scan inwards from that, 350b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // looking for a block-pointer declarator. 351b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 352b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall for (--i; i != 0; --i) { 353b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk &blockChunk = declarator.getTypeObject(i-1); 354b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall switch (blockChunk.Kind) { 355b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Paren: 356b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Pointer: 357b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Array: 358b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 359b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Reference: 360b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::MemberPointer: 361b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue; 362b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: 363b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall result = &blockChunk; 364b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall goto continue_outer; 365b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 366b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall llvm_unreachable("bad declarator chunk kind"); 367b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 368b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 369b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // If we run out of declarators doing that, we're done. 370b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 371b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 372b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall llvm_unreachable("bad declarator chunk kind"); 373b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 374b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Okay, reconsider from our new point. 375b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall continue_outer: ; 376b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 377b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 378b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Ran out of chunks, bail out. 379b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return result; 380b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall} 381b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 385711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 387711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 391b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 392b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Move it to the outermost normal or block pointer declarator. 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 397b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::BlockPointer: { 398b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // But don't move an ARC ownership attribute to the return type 399b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // of a block. 400b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall DeclaratorChunk *destChunk = 0; 401b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec() && 402b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall attr.getKind() == AttributeList::AT_ObjCOwnership) 403b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall destChunk = maybeMovePastReturnType(declarator, i - 1); 404b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (!destChunk) destChunk = &chunk; 405b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 407b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall destChunk->getAttrListRef()); 408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 409b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 415b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // We may be starting at the return type of a block. 416b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall case DeclaratorChunk::Function: 417b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec() && 418b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall attr.getKind() == AttributeList::AT_ObjCOwnership) { 419b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (DeclaratorChunk *dest = maybeMovePastReturnType(declarator, i)) { 420b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 421b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall dest->getAttrListRef()); 422b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return; 423b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 424b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 425b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall goto error; 426b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 4342792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 4352792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 437711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 440711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 441711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 456ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 4747ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { 4757ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // Splice the attribute into the decl spec. Prevents the 4767ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // attribute from being applied multiple times and gives 4777ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // the source-location-filler something to work with. 4787ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall state.saveDeclSpecAttrs(); 4797ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 4807ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall declarator.getMutableDeclSpec().getAttributes().getListRef()); 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 4827ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 509711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 52691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5272792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 534711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 537711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 538711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 539711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 540711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 543711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 544711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 545711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 546711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 547711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5495b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return handleFunctionTypeAttr(state, attr, declSpecType); 550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 552711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 554711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 555711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 557711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 558711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5605c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // C++11 attributes before the decl specifiers actually appertain to 5615c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // the declarators. Move them straight there. We don't support the 5625c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // 'put them wherever you like' semantics we allow for GNU attributes. 5635c52166525f8714c3e3a979b156ec23426947fd3Richard Smith if (attr.isCXX11Attribute()) { 5645c52166525f8714c3e3a979b156ec23426947fd3Richard Smith moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 5655c52166525f8714c3e3a979b156ec23426947fd3Richard Smith state.getDeclarator().getAttrListRef()); 5665c52166525f8714c3e3a979b156ec23426947fd3Richard Smith return; 5675c52166525f8714c3e3a979b156ec23426947fd3Richard Smith } 5685c52166525f8714c3e3a979b156ec23426947fd3Richard Smith 569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 572711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 573711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 574711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 575711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 576711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 578711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 581711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 582711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 583711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 585711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 586711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 587711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 589711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 590711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 591711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 592711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 593711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 594711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 595711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 596711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 597711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 598711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 599711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 600711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 601711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 602711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 603711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 604711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 605711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 606711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 607711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 608711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 609711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 611711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 612711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 613711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 614711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 615711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 617711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 6185c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // Do not distribute C++11 attributes. They have strict rules for what 6195c52166525f8714c3e3a979b156ec23426947fd3Richard Smith // they appertain to. 6205c52166525f8714c3e3a979b156ec23426947fd3Richard Smith if (attr->isCXX11Attribute()) 6215c52166525f8714c3e3a979b156ec23426947fd3Richard Smith continue; 6225c52166525f8714c3e3a979b156ec23426947fd3Richard Smith 623711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 624711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 625711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 626711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 627711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 6288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 6294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 630f85e193739c953358c865005855253af4f68a497John McCall break; 631f85e193739c953358c865005855253af4f68a497John McCall // fallthrough 632f85e193739c953358c865005855253af4f68a497John McCall 633711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 636711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 637aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman MS_TYPE_ATTRS_CASELIST: 638aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // Microsoft type attributes cannot go after the declarator-id. 639aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman continue; 640aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 641711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 643711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 644711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 645711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 646711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 647711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 648711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 649711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 650711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 651711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 653711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 654711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 655711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 656711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 657711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 659711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 660711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 661da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 662da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 663da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 664da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 665da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 666da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 667711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 668711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 669711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 670da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 671da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 672da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 673da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 674711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 675711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 67696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation loc = declarator.getLocStart(); 677711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 678711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 67959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 680711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 68159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*HasProto=*/true, 68259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*IsAmbiguous=*/false, 68359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*LParenLoc=*/NoLoc, 68459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ArgInfo=*/0, 68559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumArgs=*/0, 68659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*EllipsisLoc=*/NoLoc, 68759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RParenLoc=*/NoLoc, 68859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*TypeQuals=*/0, 68959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierIsLvalueRef=*/true, 69059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 69159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 69259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 69359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*MutableLoc=*/NoLoc, 69459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EST_None, 69559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ESpecLoc=*/NoLoc, 69659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Exceptions=*/0, 69759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ExceptionRanges=*/0, 69859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumExceptions=*/0, 69959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NoexceptExpr=*/0, 70059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara loc, loc, declarator)); 701711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 702711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 703711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 704711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 705711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 70604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 70704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 708930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 709930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 7101dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// \param state Specifies the declarator containing the declaration specifier 7111dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// to be converted, along with other associated processing state. 7125153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 7135153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 7148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 717711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 7188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 719711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 720711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 721711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 7225db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 72396a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar DeclLoc = DS.getLocStart(); 72491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 725711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 7261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7275db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 72996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 73096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 73196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 734fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 736fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 740fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 742958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 74364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 74464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 74564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 74664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 747711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 748f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 74964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 75064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 75164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 75264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 753711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 754f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 75564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 75664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 75764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 758f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 759f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 760f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 761f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 762f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 763f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 764f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 765f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 766f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 767f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 768d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 76962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 770097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 771c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 77231ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*)PQ, 773c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 774c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 77562f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 77662f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 77791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 7785db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 7795db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 780f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // The declspec is always missing in a lambda expr context; it is either 781f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // specified with a trailing return type or inferred. 782f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman if (declarator.getContext() == Declarator::LambdaExprContext || 783f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman isOmittedBlockReturnType(declarator)) { 7845db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 7855db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 7865db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 7871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 788d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 789d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 790d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 791d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 792d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 793d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 794d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 7954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ImplicitInt) { 79635d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 79735d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 7983f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 799711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 8003f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 80196a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar << FixItHint::CreateInsertion(DS.getLocStart(), "int"); 8023f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 8034310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 804d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 805d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 806d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 807d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 80858eb37036b47bbe7433f72d92a2cb60848507707Richard Smith if (S.getLangOpts().CPlusPlus) { 809711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 8103f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 8111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 812b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 813b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 814b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 815711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 816b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 817711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 8183f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 819b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 820d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 8211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 8233cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 826fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 827fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 828fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 829311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 830311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 83191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 832e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 833e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 834e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 835e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 83680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 837e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 838e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 839e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 840e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 841311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 845fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 846fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 847fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 848311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 849311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 85091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 851e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko // 'long long' is a C99 or C++11 feature. 852e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (!S.getLangOpts().C99) { 853e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko if (S.getLangOpts().CPlusPlus) 854e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), 85580ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith S.getLangOpts().CPlusPlus11 ? 856e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko diag::warn_cxx98_compat_longlong : diag::ext_cxx11_longlong); 857e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko else 858e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_c99_longlong); 859e3b136bd873508c9ac0ee6eba98c2a810a177ebaDmitri Gribenko } 860311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 863958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8643cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 8655a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case DeclSpec::TST_int128: 86684268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith if (!S.PP.getTargetInfo().hasInt128Type()) 86784268904947ada7e251932a6f5b0f4364df7a2c7Richard Smith S.Diag(DS.getTypeSpecTypeLoc(), diag::err_int128_unsupported); 8685a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned) 8695a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.UnsignedInt128Ty; 8705a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith else 8715a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.Int128Ty; 8725a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 873aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 874fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 875958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 876958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 877fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 878958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 879fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 88039d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 8814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 88239d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 88339d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 88439d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 885958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 886fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 890711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 8918f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 892711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8938f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 89499dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 8976666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_struct: 8986666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_interface: { 899b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 9006e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 9016e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 9026e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 903711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9046e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 9056e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 9066e24726524c2b51b31bb4b622aa678a46b024f42John McCall 907a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 9080daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 90991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 911a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 91291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 914a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 9152191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 9160daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 9170daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 9180daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 9190daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 920958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9221a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 926711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 92727940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 928711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 92927940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 93027940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 931c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 932c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 933c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 934c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 935c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 936c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 937c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 938c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 93931ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 940c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 941c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 942ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 943c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 94431ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 945c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 946c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 947c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 9484262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 949c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 95031ba6135375433b617a8587ea6cc836a014ebd86Roman Divacky (ObjCProtocolDecl*const*) PQ, 951c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 952c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 9533f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 954711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 9553f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 956711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9573f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 958c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 9591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 961958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 963958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 964e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 965711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 966958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 967730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 968730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 969711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 970d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 971fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 972958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 973d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 974b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 975d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 976d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 977711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 9784b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 9794b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 980711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 9814b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 982958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 983d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 9846fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 985b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 9866fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 9876fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 988711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 989af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 990af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 991711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 992af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 9936fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 9946fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 995ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 996db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 997db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 998ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 999ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 1000ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 1001ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 1002ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 1003ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 1004db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 100591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 1006db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 1007a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_auto: 1008e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 1009a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith Result = Context.getAutoType(QualType(), /*decltype(auto)*/false); 1010a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 1011a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 1012a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclSpec::TST_decltype_auto: 1013a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith Result = Context.getAutoType(QualType(), /*decltype(auto)*/true); 1014e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 10151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1016a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 1017a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 1018a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 1019a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 1020b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 1021b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 1022b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 1023b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 1024b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 1025b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 1026b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 1027b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 102891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 1029b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1030b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_t: 1031b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dTy; 1032b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1033b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1034b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_array_t: 1035b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dArrayTy; 1036b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1037b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1038b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image1d_buffer_t: 1039b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage1dBufferTy; 1040b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1041b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1042b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_t: 1043b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dTy; 1044b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1045b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1046b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image2d_array_t: 1047b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage2dArrayTy; 1048b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1049b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei 1050b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei case DeclSpec::TST_image3d_t: 1051b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei Result = Context.OCLImage3dTy; 1052b13621d08e20ac7aa550e05896de8a57ee99c1e8Guy Benyei break; 1053b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 105421f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei case DeclSpec::TST_sampler_t: 105521f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei Result = Context.OCLSamplerTy; 105621f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei break; 105721f18c4fda167dc5f72feddbd6a7ac1b63200a0dGuy Benyei 1058e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei case DeclSpec::TST_event_t: 1059e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei Result = Context.OCLEventTy; 1060e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei break; 1061e6b9d802fb7b16d93474c4f1c179ab36202e8a8bGuy Benyei 1062809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 10635153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 1064711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 10655153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1068958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 1069f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 10704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().Freestanding) 1071711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 1072fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 107382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 107482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 107582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 1076e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 1077788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 1078e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 1079788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 1080e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 1081e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 1082f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 10831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108447423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 108547423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 1086711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 10871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1088711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 1089711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 1090711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 1091711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 1092711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1093711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 1094711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 1095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 1096711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 1097f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, Result, TAL_DeclSpec, attrs); 10981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 110096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 110196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 110296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 110396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 110496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 110596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 11060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 11074cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getConstSpecLoc(), diag::warn_typecheck_function_qualifiers) 11084cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 11090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 11104cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith S.Diag(DS.getVolatileSpecLoc(), diag::warn_typecheck_function_qualifiers) 11114cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith << Result << DS.getSourceRange(); 11120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 11134cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert((TypeQuals & (DeclSpec::TQ_restrict | DeclSpec::TQ_atomic)) && 11144cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith "Has CVRA quals but not C, V, R, or A?"); 11154cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No diagnostic; we'll diagnose 'restrict' or '_Atomic' applied to a 11164cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // function type later, in BuildQualifiedType. 111796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 111896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1120f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 1121f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 1122f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 1123f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 1124f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 11251a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 11261a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 1127f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 11280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 11304cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeQuals &= ~DeclSpec::TQ_atomic; 11311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1133bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 6.5.3 constraints: "The same type qualifier shall not appear more 1134bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // than once in the same specifier-list or qualifier-list, either directly 1135bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // or via one or more typedefs." 113691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus 1137bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman && TypeQuals & Result.getCVRQualifiers()) { 1138bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()) { 113991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) 1140bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "const"; 1141bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1142bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 1143bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()) { 114491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) 1145bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "volatile"; 1146bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1147bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11484cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C90 doesn't have restrict nor _Atomic, so it doesn't force us to 11494cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // produce a warning in this case. 1150bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1151bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 11524cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith QualType Qualified = S.BuildQualifiedType(Result, DeclLoc, TypeQuals, &DS); 11534cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 11544cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If adding qualifiers fails, just use the unqualified type. 11554cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (Qualified.isNull()) 11564cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith declarator.setInvalidType(true); 11574cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith else 11584cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Result = Qualified; 115996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 11600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1161f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 1162f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 1163f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 1164cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 1165cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 1166cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 11671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1168cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 1169cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1170cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 11712865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 117293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Qualifiers Qs, const DeclSpec *DS) { 11732865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 11742865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 11752865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 11762865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 11772865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 11782865474261a608c7873b87ba4af110d17907896dJohn McCall 117993d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isAnyPointerType() || T->isReferenceType() || 118093d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith T->isMemberPointerType()) { 118193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith QualType EltTy; 118293d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (T->isObjCObjectPointerType()) 118393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T; 118493d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else if (const MemberPointerType *PTy = T->getAs<MemberPointerType>()) 118593d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = PTy->getPointeeType(); 118693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith else 118793d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith EltTy = T->getPointeeType(); 118893d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith 118993d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // If we have a pointer or reference, the pointee must have an object 119093d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith // incomplete type. 119193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith if (!EltTy->isIncompleteOrObjectType()) { 11922865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 119393d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith ProblemTy = EltTy; 119491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 119593d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith } else if (!T->isDependentType()) { 119693d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith DiagID = diag::err_typecheck_invalid_restrict_not_pointer; 11972865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 11982865474261a608c7873b87ba4af110d17907896dJohn McCall } 11992865474261a608c7873b87ba4af110d17907896dJohn McCall 12002865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 120193d6b07cd79d74e343d81c0e8fb5365376a33097Richard Smith Diag(DS ? DS->getRestrictSpecLoc() : Loc, DiagID) << ProblemTy; 12022865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 12032865474261a608c7873b87ba4af110d17907896dJohn McCall } 12042865474261a608c7873b87ba4af110d17907896dJohn McCall } 12052865474261a608c7873b87ba4af110d17907896dJohn McCall 12062865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 12072865474261a608c7873b87ba4af110d17907896dJohn McCall} 12082865474261a608c7873b87ba4af110d17907896dJohn McCall 12094cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard SmithQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 12104cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVRA, const DeclSpec *DS) { 12114cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Convert from DeclSpec::TQ to Qualifiers::TQ by just dropping TQ_atomic. 12124cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith unsigned CVR = CVRA & ~DeclSpec::TQ_atomic; 12134cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 12144cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 12154cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If the same qualifier appears more than once in the same 12164cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, either directly or via one or more typedefs, 12174cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // the behavior is the same as if it appeared only once. 12184cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12194cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // It's not specified what happens when the _Atomic qualifier is applied to 12204cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // a type specified with the _Atomic specifier, but we assume that this 12214cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // should be treated as if the _Atomic qualifier appeared multiple times. 12224cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (CVRA & DeclSpec::TQ_atomic && !T->isAtomicType()) { 12234cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // C11 6.7.3/5: 12244cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // If other qualifiers appear along with the _Atomic qualifier in a 12254cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // specifier-qualifier-list, the resulting type is the so-qualified 12264cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // atomic type. 12274cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // 12284cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // Don't need to worry about array types here, since _Atomic can't be 12294cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // applied to such types. 12304cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SplitQualType Split = T.getSplitUnqualifiedType(); 12314cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith T = BuildAtomicType(QualType(Split.Ty, 0), 12324cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith DS ? DS->getAtomicSpecLoc() : Loc); 12334cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (T.isNull()) 12344cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return T; 12354cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Split.Quals.addCVRQualifiers(CVR); 12364cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Split.Quals); 12374cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 12384cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 12394cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith return BuildQualifiedType(T, Loc, Qualifiers::fromCVRMask(CVR), DS); 12404cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 12414cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 1242075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1243075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1244075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1245075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1246075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1247f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1248f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1249f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1250f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1251f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1252f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1253f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1254f85e193739c953358c865005855253af4f68a497John McCall return type; 1255f85e193739c953358c865005855253af4f68a497John McCall 1256f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1257f85e193739c953358c865005855253af4f68a497John McCall 1258f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1259f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1260f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1261f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1262f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1263f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1264f85e193739c953358c865005855253af4f68a497John McCall 1265f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1266f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1267f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1268f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1269f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 12705b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1271ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1272ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 127371f55f771794674a410171dbf3cb5dbedf95d033David Blaikie } else if (S.isUnevaluatedContext()) { 1274ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1275f85e193739c953358c865005855253af4f68a497John McCall 1276e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // If that failed, give an error and recover using __strong. __strong 1277e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // is the option most likely to prevent spurious second-order diagnostics, 1278e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // like when binding a reference to a field. 1279f85e193739c953358c865005855253af4f68a497John McCall } else { 1280f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1281f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1282f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1283f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1284ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1285ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1286ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1287f85e193739c953358c865005855253af4f68a497John McCall } else { 1288ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1289f85e193739c953358c865005855253af4f68a497John McCall } 1290e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall implicitLifetime = Qualifiers::OCL_Strong; 1291f85e193739c953358c865005855253af4f68a497John McCall } 1292f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1293f85e193739c953358c865005855253af4f68a497John McCall 1294f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1295f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1296f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1297f85e193739c953358c865005855253af4f68a497John McCall} 1298f85e193739c953358c865005855253af4f68a497John McCall 1299cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1300cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1301cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1302cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1303cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1304cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1305cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1306cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1307cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1308cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1309cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1310cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1311cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 13122865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1313cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1314cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1315cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1316cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1317ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1318cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1319cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1320cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1321c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 132292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1323f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 13244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1325f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1326f85e193739c953358c865005855253af4f68a497John McCall 1327cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 13282865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1329cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1330cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1331cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1332cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1333cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1334cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1335cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1336cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1337cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1338cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1339cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1340cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1341cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1342cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1343cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 134454e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 13452865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 134654e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 134791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier assert(Context.getCanonicalType(T) != Context.OverloadTy && 13489625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 134991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 135069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 135191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 135291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 135391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type T, an attempt to create the type "lvalue reference to cv TR" creates 135491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // the type "lvalue reference to T", while an attempt to create the type 135569d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 135654e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 135754e14c4db764c0636160d26c5bbf491637c83a76John McCall 135854e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 135954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 136054e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 136154e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 136254e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 136354e14c4db764c0636160d26c5bbf491637c83a76John McCall // 136454e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 136554e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 136654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 136754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 136854e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 136969d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 137069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1371cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1372cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 137333a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1374cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1375cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1376cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1377cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1378cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1379cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1380f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 13814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1382f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1383f85e193739c953358c865005855253af4f68a497John McCall 1384cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 13857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 13862865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 13872865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1388cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1389cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1390e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1391e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1392282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smithstatic bool isArraySizeVLA(Sema &S, Expr *ArraySize, llvm::APSInt &SizeVal) { 1393282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode 1394282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // (like gnu99, but not c99) accept any evaluatable value as an extension. 1395ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor class VLADiagnoser : public Sema::VerifyICEDiagnoser { 1396ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor public: 1397ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor VLADiagnoser() : Sema::VerifyICEDiagnoser(true) {} 139891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1399ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) { 1400ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 140191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1402ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseFold(Sema &S, SourceLocation Loc, SourceRange SR) { 1403ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.Diag(Loc, diag::ext_vla_folded_to_constant) << SR; 1404ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 1405ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } Diagnoser; 140691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1407ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor return S.VerifyIntegerConstantExpression(ArraySize, &SizeVal, Diagnoser, 1408ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.LangOpts.GNUMode).isInvalid(); 1409e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1410e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1411e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1412cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1413cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1414cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1415cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1416cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 14171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 14181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1419cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1420efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Brackets The range from the opening '[' to the closing ']'. 1421cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1422cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1423cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1424cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1425cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1426cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1427cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1428cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 14297e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 14300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 14317e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 14324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 1433138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1434138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 143591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type, the (possibly cv-qualified) type void, a function type or an 1436138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1437138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1438bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // C++ [dcl.array]p3: 1439bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // When several "array of" specifications are adjacent, [...] only the 1440bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // first of the constant expressions that specify the bounds of the arrays 1441bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // may be omitted. 1442bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // 1443138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1444138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1445138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1446138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1447138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1448138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 144991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1450bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith if (T->isVoidType() || T->isIncompleteArrayType()) { 1451923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1452923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1453923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 145491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 145591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (RequireNonAbstractType(Brackets.getBegin(), T, 1456138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1457138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 145891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1459923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1460138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1461138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1462923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1463923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1464923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1465923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1466cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1467cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1468cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1469ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1470cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1471cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 14721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14736217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1474cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1475cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1476cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1477cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1478c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1479c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1480c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1481cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1483806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1484806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1485806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1486806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1487806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1488806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1489806054db6653d29cb0d9692df3612cbcd03d0530John McCall 14905e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1491429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1492429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1493429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1494429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1495429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1496429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1497429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 14985e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1499cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 1500282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // C++11 allows contextual conversions to such types. 150180ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (!getLangOpts().CPlusPlus11 && 1502282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize && !ArraySize->isTypeDependent() && 15031274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1504cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1505cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1506cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1507cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1508282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 15092767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1510cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1511f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 15127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1513f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1514f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1515ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 15167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1517282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } else if ((!T->isDependentType() && !T->isIncompleteType() && 1518282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !T->isConstantSizeType()) || 1519282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith isArraySizeVLA(*this, ArraySize, ConstVal)) { 1520282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // Even in C++11, don't allow contextual conversions in the array bound 1521282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // of a VLA. 152280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && 1523282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1524282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1525282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith << ArraySize->getType() << ArraySize->getSourceRange(); 1526282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return QualType(); 1527282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } 1528282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 1529e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1530e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1531e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 15327e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1533cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1534cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1535cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1536923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1537b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1538b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1539b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1540b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1541b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1542b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1543923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1544923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1545923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 154602024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 154702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 154891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(ArraySize->getLocStart(), 154902024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 155002024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1551923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 155220cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 155320cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 155420cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 155520cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 155620cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 155720cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 155820cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 155991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 15602767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 156191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Is the array too large? 15622767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 15632767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 1564ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) { 15652767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 15662767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 15672767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 1568ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu return QualType(); 1569ee2f8f2f7c4eacfa305a29fcd916d63c650ca847Richard Trieu } 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 157191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 157246a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1573cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1574617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly 1575617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly // OpenCL v1.2 s6.9.d: variable length arrays are not supported. 1576617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly if (getLangOpts().OpenCL && T->isVariableArrayType()) { 1577617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly Diag(Loc, diag::err_opencl_vla); 1578617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly return QualType(); 1579617bb317a7aeb6c3468a4170a5d6c1058da7cea1Joey Gouly } 1580af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 15814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().C99) { 15820fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 15830fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 158439b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith // FIXME: C++1y allows this. 1585f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 158691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!T->isDependentType() && 15873c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT.isPODType(Context) && 15883c7236e01dfb69b370857ccd71c7bcf5ce80b36fDouglas Gregor !BaseT->isObjCLifetimeType()) { 15890fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1590f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 15910fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 159291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 1593a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1594a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1595a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1596a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1597a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 15980fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 15990fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 160039b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith Diag(Loc, getLangOpts().CPlusPlus1y 160139b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith ? diag::warn_cxx11_compat_array_of_runtime_bound 160239b0e269dc8895ecc0f92f08126d3082b2a837a8Richard Smith : diag::ext_vla); 16030fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1604d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 16054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().CPlusPlus? diag::err_c99_array_usage_cxx 1606d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1607cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1608cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1609630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko if (T->isVariableArrayType()) { 1610630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko // Warn about VLAs for -Wvla. 1611630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko Diag(Loc, diag::warn_vla_used); 1612630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko } 1613630f4bb9f12e330438281c4e46deb6656620b73aDmitri Gribenko 1614cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1615cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 16169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 16189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 16199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 16209ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 16219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 16239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 16241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 16259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 16269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 16279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 16309ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 16319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 16329ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 16339f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman Diag(AttrLoc, diag::err_attribute_argument_type) 16349f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << "ext_vector_type" << AANT_ArgumentIntegerConstant 16359f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ArraySize->getSourceRange(); 16369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 16409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 16411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16439cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 16449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 16459ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 16469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 16479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 16481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16491652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize)) { 16501652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Diag(AttrLoc, diag::err_attribute_size_too_large) 16511652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << ArraySize->getSourceRange(); 16521652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return QualType(); 16531652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 16541652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman 16554ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 16561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16589ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 16599cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1661ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedmanbool Sema::CheckFunctionReturnType(QualType T, SourceLocation Loc) { 1662724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 166391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(Loc, diag::err_func_returning_array_function) 166458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1665ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1666724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1667aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1668aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1669aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1670aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1671aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1672ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return true; 1673ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 1674ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1675ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 1676ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 1677ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 1678ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Diag(Loc, diag::err_object_cannot_be_passed_returned_by_value) << 0 << T; 1679ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return 0; 1680aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1681aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1682ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman return false; 1683ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman} 1684ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1685ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli FriedmanQualType Sema::BuildFunctionType(QualType T, 1686ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman llvm::MutableArrayRef<QualType> ParamTypes, 1687ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation Loc, DeclarationName Entity, 1688ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman const FunctionProtoType::ExtProtoInfo &EPI) { 1689724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1690ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1691ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman Invalid |= CheckFunctionReturnType(T, Loc); 1692ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 1693bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose for (unsigned Idx = 0, Cnt = ParamTypes.size(); Idx < Cnt; ++Idx) { 1694aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 1695c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 16962dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1697724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1698724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1699aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1700aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1701aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1702aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1703aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1704724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1705cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 170654e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1707724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1708724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1709724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1710724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1711724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1712bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose return Context.getFunctionType(T, ParamTypes, EPI); 1713724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1715949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1716949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1717949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1718949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 1719949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1720949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1721949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1722949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1723949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 17252865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1726949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1727949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1728949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1729949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1730949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1731949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1732949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1733949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1734949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1735949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1736949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1737949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1738949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1739949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1740737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1741949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1742949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 17438d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1744ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1745949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1746949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1747949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1748949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1749949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1750949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1751949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1752949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1753949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1754949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1755949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1756949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1757949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1758949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1759b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // C++ allows the class type in a member pointer to be an incomplete type. 1760b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // In the Microsoft ABI, the size of the member pointer can vary 1761b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // according to the class type, which means that we really need a 1762b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // complete type if possible, which means we need to instantiate templates. 1763b8b2c9da87e7d70a1679db026f40548b3192b705John McCall // 176484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // If template instantiation fails or the type is just incomplete, we have to 176584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // add an extra slot to the member pointer. Yes, this does cause problems 176684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // when passing pointers between TUs that disagree about the size. 176784e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { 176884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner CXXRecordDecl *RD = Class->getAsCXXRecordDecl(); 1769e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RD && !RD->hasAttr<MSInheritanceAttr>()) { 177084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Lock in the inheritance model on the first use of a member pointer. 177184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // Otherwise we may disagree about the size at different points in the TU. 177284e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // FIXME: MSVC picks a model on the first use that needs to know the size, 177384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // rather than on the first mention of the type, e.g. typedefs. 1774e93e2552e76ab704ec85919cc2c76f02b8b081eeReid Kleckner if (RequireCompleteType(Loc, Class, 0) && !RD->isBeingDefined()) { 177584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // We know it doesn't have an attribute and it's incomplete, so use the 177684e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // unspecified inheritance model. If we're in the record body, we can 177784e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner // figure out the inheritance model. 177884e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner for (CXXRecordDecl::redecl_iterator I = RD->redecls_begin(), 177984e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner E = RD->redecls_end(); I != E; ++I) { 178084e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner I->addAttr(::new (Context) UnspecifiedInheritanceAttr( 178184e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner RD->getSourceRange(), Context)); 178284e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 178384e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 178484e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 178584e9ab44af3a16f66d62590505db2036ef0aa03bReid Kleckner } 1786679fc9314c2bde5eb6bea33c790d1a035461e618Joao Matos 17872865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1788949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 17891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17909a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 17919a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17929a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 17939a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 1794efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Loc The source location, used for diagnostics. 17959a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17969a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 17979a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 17989a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 17999a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 18009a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 180191cbbbf506c892a26d4301e2b3ccd377b0938817Chad RosierQualType Sema::BuildBlockPointerType(QualType T, 18021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 18039a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 18040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 18059a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 18069a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 18079a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18092865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 18109a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 18119a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1812b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1813b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 18143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1815a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 18163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 18173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1819a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1820f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1821e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1822a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1823e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1825a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1826e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1827e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1828e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1829a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1830a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1831a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1832a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1833f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1834f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1835f85e193739c953358c865005855253af4f68a497John McCall/// types. 1836f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1837f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1838f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1839f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1840f85e193739c953358c865005855253af4f68a497John McCall 1841f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1842f85e193739c953358c865005855253af4f68a497John McCall 1843f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1844f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1845f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1846f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1847f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1848f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1849f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1850f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1851f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1852f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1853f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1854f85e193739c953358c865005855253af4f68a497John McCall break; 1855f85e193739c953358c865005855253af4f68a497John McCall 1856f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1857f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1858f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1859f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1860f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1861f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1862f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1863f85e193739c953358c865005855253af4f68a497John McCall break; 1864f85e193739c953358c865005855253af4f68a497John McCall 1865f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1866f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1867f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1868f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1869f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1870f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1871f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1872f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1873f85e193739c953358c865005855253af4f68a497John McCall 1874f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1875f85e193739c953358c865005855253af4f68a497John McCall goto done; 1876f85e193739c953358c865005855253af4f68a497John McCall 1877f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1878f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1879f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1880f85e193739c953358c865005855253af4f68a497John McCall return; 1881f85e193739c953358c865005855253af4f68a497John McCall } 1882f85e193739c953358c865005855253af4f68a497John McCall } 1883f85e193739c953358c865005855253af4f68a497John McCall done: 1884f85e193739c953358c865005855253af4f68a497John McCall 1885f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1886f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1887f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1888f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1889f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1890f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1891f85e193739c953358c865005855253af4f68a497John McCall 1892f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1893f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1894f85e193739c953358c865005855253af4f68a497John McCall 1895f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1896f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 189791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1898f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1899f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1900f85e193739c953358c865005855253af4f68a497John McCall else 1901f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1902f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1903f85e193739c953358c865005855253af4f68a497John McCall 1904f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1905f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1906f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1907f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1908f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1909f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1910f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1911f85e193739c953358c865005855253af4f68a497John McCall return; 1912f85e193739c953358c865005855253af4f68a497John McCall 1913f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1914f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 19151c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 19161c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 19171c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1918f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1919f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 19208e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 1921f85e193739c953358c865005855253af4f68a497John McCall return; 1922f85e193739c953358c865005855253af4f68a497John McCall 1923a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1924a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1925f85e193739c953358c865005855253af4f68a497John McCall 1926f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1927f85e193739c953358c865005855253af4f68a497John McCall } else return; 1928f85e193739c953358c865005855253af4f68a497John McCall 1929f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1930f85e193739c953358c865005855253af4f68a497John McCall} 1931f85e193739c953358c865005855253af4f68a497John McCall 19328c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredQualifiers( 19338c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Sema &S, unsigned Quals, 19348c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation FallbackLoc, 19358c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation ConstQualLoc = SourceLocation(), 19368c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation VolatileQualLoc = SourceLocation(), 19378c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation RestrictQualLoc = SourceLocation(), 19388c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation AtomicQualLoc = SourceLocation()) { 1939eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith if (!Quals) 1940eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith return; 1941eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith 19428c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const SourceManager &SM = S.getSourceManager(); 19438c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19448c952cd40ccec9d720931f27e7d722fed207d536Richard Smith struct Qual { 19458c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned Mask; 19468c952cd40ccec9d720931f27e7d722fed207d536Richard Smith const char *Name; 19478c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation Loc; 19488c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } const QualKinds[4] = { 19498c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_const, "const", ConstQualLoc }, 19508c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_volatile, "volatile", VolatileQualLoc }, 19518c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_restrict, "restrict", RestrictQualLoc }, 19528c952cd40ccec9d720931f27e7d722fed207d536Richard Smith { DeclSpec::TQ_atomic, "_Atomic", AtomicQualLoc } 19538c952cd40ccec9d720931f27e7d722fed207d536Richard Smith }; 19548c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19558c952cd40ccec9d720931f27e7d722fed207d536Richard Smith llvm::SmallString<32> QualStr; 1956d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1957d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 19588c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixItHint FixIts[4]; 19598c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19608c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Build a string naming the redundant qualifiers. 19618c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned I = 0; I != 4; ++I) { 19628c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Quals & QualKinds[I].Mask) { 19638c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualStr.empty()) QualStr += ' '; 19648c952cd40ccec9d720931f27e7d722fed207d536Richard Smith QualStr += QualKinds[I].Name; 19658c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19668c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If we have a location for the qualifier, offer a fixit. 19678c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation QualLoc = QualKinds[I].Loc; 19688c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (!QualLoc.isInvalid()) { 19698c952cd40ccec9d720931f27e7d722fed207d536Richard Smith FixIts[NumQuals] = FixItHint::CreateRemoval(QualLoc); 19708c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (Loc.isInvalid() || SM.isBeforeInTranslationUnit(QualLoc, Loc)) 19718c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Loc = QualLoc; 19728c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 1973d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 19748c952cd40ccec9d720931f27e7d722fed207d536Richard Smith ++NumQuals; 19758c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 19768c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 1977d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 19788c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S.Diag(Loc.isInvalid() ? FallbackLoc : Loc, diag::warn_qual_return_type) 19798c952cd40ccec9d720931f27e7d722fed207d536Richard Smith << QualStr << NumQuals << FixIts[0] << FixIts[1] << FixIts[2] << FixIts[3]; 19808c952cd40ccec9d720931f27e7d722fed207d536Richard Smith} 1981a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 19828c952cd40ccec9d720931f27e7d722fed207d536Richard Smith// Diagnose pointless type qualifiers on the return type of a function. 19838c952cd40ccec9d720931f27e7d722fed207d536Richard Smithstatic void diagnoseIgnoredFunctionQualifiers(Sema &S, QualType RetTy, 19848c952cd40ccec9d720931f27e7d722fed207d536Richard Smith Declarator &D, 19858c952cd40ccec9d720931f27e7d722fed207d536Richard Smith unsigned FunctionChunkIndex) { 19868c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getTypeObject(FunctionChunkIndex).Fun.hasTrailingReturnType()) { 19878c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: TypeSourceInfo doesn't preserve location information for 19888c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // qualifiers. 1989eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, RetTy.getLocalCVRQualifiers(), 19908c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 19918c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 1992d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 19938c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 19948c952cd40ccec9d720931f27e7d722fed207d536Richard Smith for (unsigned OuterChunkIndex = FunctionChunkIndex + 1, 19958c952cd40ccec9d720931f27e7d722fed207d536Richard Smith End = D.getNumTypeObjects(); 19968c952cd40ccec9d720931f27e7d722fed207d536Richard Smith OuterChunkIndex != End; ++OuterChunkIndex) { 19978c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk &OuterChunk = D.getTypeObject(OuterChunkIndex); 19988c952cd40ccec9d720931f27e7d722fed207d536Richard Smith switch (OuterChunk.Kind) { 19998c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Paren: 20008c952cd40ccec9d720931f27e7d722fed207d536Richard Smith continue; 20018c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20028c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Pointer: { 20038c952cd40ccec9d720931f27e7d722fed207d536Richard Smith DeclaratorChunk::PointerTypeInfo &PTI = OuterChunk.Ptr; 20048c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers( 20058c952cd40ccec9d720931f27e7d722fed207d536Richard Smith S, PTI.TypeQuals, 20068c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation(), 20078c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 20088c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 20098c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 20108c952cd40ccec9d720931f27e7d722fed207d536Richard Smith SourceLocation::getFromRawEncoding(PTI.AtomicQualLoc)); 20118c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 20128c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20138c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20148c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Function: 20158c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::BlockPointer: 20168c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Reference: 20178c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::Array: 20188c952cd40ccec9d720931f27e7d722fed207d536Richard Smith case DeclaratorChunk::MemberPointer: 20198c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // FIXME: We can't currently provide an accurate source location and a 20208c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // fix-it hint for these. 2021eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith unsigned AtomicQual = RetTy->isAtomicType() ? DeclSpec::TQ_atomic : 0; 20228c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredQualifiers(S, RetTy.getCVRQualifiers() | AtomicQual, 20238c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc()); 20248c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 20258c952cd40ccec9d720931f27e7d722fed207d536Richard Smith } 20268c952cd40ccec9d720931f27e7d722fed207d536Richard Smith 20278c952cd40ccec9d720931f27e7d722fed207d536Richard Smith llvm_unreachable("unknown declarator chunk kind"); 20284cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 2029d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20308c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // If the qualifiers come from a conversion function type, don't diagnose 20318c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // them -- they're not necessarily redundant, since such a conversion 20328c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // operator can be explicitly called as "x.operator const int()". 20338c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 20348c952cd40ccec9d720931f27e7d722fed207d536Richard Smith return; 2035d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20368c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // Just parens all the way out to the decl specifiers. Diagnose any qualifiers 20378c952cd40ccec9d720931f27e7d722fed207d536Richard Smith // which are present there. 2038eb82a53aaa7880b7d3fd733aeee38b9aeee919baRichard Smith diagnoseIgnoredQualifiers(S, D.getDeclSpec().getTypeQualifiers(), 20398c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getIdentifierLoc(), 20408c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getConstSpecLoc(), 20418c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getVolatileSpecLoc(), 20428c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getRestrictSpecLoc(), 20438c952cd40ccec9d720931f27e7d722fed207d536Richard Smith D.getDeclSpec().getAtomicSpecLoc()); 2044d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 2045d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 20478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 20488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 20498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 2050930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 20518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 2052711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 20538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 20548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 20558999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 205660e141e1f87211ca831de6821003d80fe20a06f3Richard Smith bool ContainsPlaceholderType = false; 205760e141e1f87211ca831de6821003d80fe20a06f3Richard Smith 20583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 205998a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 20603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 20618999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 20620486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 20633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 20648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 206560e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = D.getDeclSpec().containsPlaceholderType(); 206691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2067591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 2068d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 206915987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 2070d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 2071591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 2072930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 2073930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 20743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 20750efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 20763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 2077930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 207891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // "void" instead. 20798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 2080a78a640c5f59720f2c2b8034eca4fbf8525d9026Rafael Espindola if (AttributeList *attrs = D.getDeclSpec().getAttributes().getList()) 2081f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclSpec, attrs); 2082930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 208348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 208448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 208548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 208648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 208791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 20888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 208960e141e1f87211ca831de6821003d80fe20a06f3Richard Smith ContainsPlaceholderType = T->getContainedAutoType(); 209048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 2091930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 2092dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 2093711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 2094711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 2095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2096d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 2097d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // In C++11, a function declarator using 'auto' must have a trailing return 20988110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 20998110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 210060e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (ContainsPlaceholderType && 210180ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!SemaRef.getLangOpts().CPlusPlus11 || !D.isFunctionDeclarator())) { 2102baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 21031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2104baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 2105baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 2106b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 2107f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2108f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 2109cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2110cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 2111baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 2112baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 2113baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2114baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 21157a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 21167a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 21178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 2118eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 2119465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 2120465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 2121465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 21226666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Interface: Error = 4; /* Interface member */ break; 21231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2124baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2125baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 212617b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 21276666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 5; // Exception declaration 2128baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2129baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 21306666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 6; // Template parameter 2131baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2132baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 21336666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 7; // Block literal 213434b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 213534b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 21366666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 8; // Template type argument 213734b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 2138162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 21393e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 21406666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 10; // Type alias 2141162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 21427796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 214360e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 214460e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 11; // Function return type 21457796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 214614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 214760e141e1f87211ca831de6821003d80fe20a06f3Richard Smith if (!SemaRef.getLangOpts().CPlusPlus1y) 214860e141e1f87211ca831de6821003d80fe20a06f3Richard Smith Error = 12; // conversion-type-id 214914f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith break; 215034b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 215114f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith Error = 13; // Generic 2152baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2153baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 2154baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 2155baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 2156baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 21570b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2158baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 2159baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 2160baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 2161ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 21626666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 9; 2163ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 21648110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 21658110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 21666666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 11; 21678110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 2168d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p2: 'auto' is always fine if the declarator 2169e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 2170e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 2171e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 217280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (SemaRef.getLangOpts().CPlusPlus11 && Error != -1) { 2173e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2174e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 2175e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 2176e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2177e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 2178e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 217954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (FTI.hasTrailingReturnType()) { 2180e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 2181e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 2182e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2183e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2184e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2185e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2186e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 218714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SourceRange AutoRange = D.getDeclSpec().getTypeSpecTypeLoc(); 218814f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith if (D.getName().getKind() == UnqualifiedId::IK_ConversionFunctionId) 218914f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith AutoRange = D.getName().getSourceRange(); 219014f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith 2191baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 219214f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), diag::err_auto_not_allowed) 219314f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith << Error << AutoRange; 21948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 2195baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 21960aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 219714f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith SemaRef.Diag(AutoRange.getBegin(), 219814f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith diag::warn_cxx98_compat_auto_type_specifier) 219914f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith << AutoRange; 2200baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 22018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 22024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus && 22035e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 22048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 22058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 22068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 22077796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 22087796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // Class and enumeration definitions are syntactically not allowed in 22097796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // trailing return types. 22107796eb5643244f3134834253ce5ea89107ac21c1Richard Smith llvm_unreachable("parser should not have allowed this"); 22117796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 22128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 22138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 22148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 22158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 22168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 2217f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2218d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.type]p3: 22198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 22208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 22218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 22228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 22238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 22258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 22278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2228601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 223114f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 22328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 22338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 22348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 22358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 22368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 22378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 22398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2240601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 2243cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 2244cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 22458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 22468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 22478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 22488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 22508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 2251601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 22548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 22558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 22568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 22578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 22588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 2259601e6e894c2a38243588b375bed0b9a9e60060bbEnea Zaffanella D.setInvalidType(true); 22608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 22618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 22628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 22638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 22648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 22658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 22668cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2267a08c2fb74ef823c185619ecc532f8fced6a1982fBenjamin Kramerstatic std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ 2268d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::string Quals = 2269d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 2270d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2271d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (FnTy->getRefQualifier()) { 2272d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_None: 2273d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2274d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2275d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_LValue: 2276d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2277d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2278d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += '&'; 2279d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2280d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2281d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_RValue: 2282d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2283d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2284d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += "&&"; 2285d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2286d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2287d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2288d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return Quals; 2289d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2290d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2291d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// Check that the function type T, which has a cv-qualifier or a ref-qualifier, 2292d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// can be contained within the declarator chunk DeclType, and produce an 2293d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// appropriate diagnostic if not. 2294d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smithstatic void checkQualifiedFunction(Sema &S, QualType T, 2295d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DeclaratorChunk &DeclType) { 2296d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: a function type with a 2297d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // cv-qualifier or a ref-qualifier can only appear at the topmost level 2298d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // of a type. 2299d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith int DiagKind = -1; 2300d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (DeclType.Kind) { 2301d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Paren: 2302d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::MemberPointer: 2303d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases are permitted. 2304d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2305d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Array: 2306d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Function: 2307d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases don't allow function types at all; no need to diagnose the 2308d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // qualifiers separately. 2309d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2310d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::BlockPointer: 2311d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 0; 2312d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2313d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Pointer: 2314d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 1; 2315d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2316d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Reference: 2317d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 2; 2318d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2319d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2320d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2321d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(DiagKind != -1); 2322d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(DeclType.Loc, diag::err_compound_qualified_function_type) 2323d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << DiagKind << isa<FunctionType>(T.IgnoreParens()) << T 2324d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(T->castAs<FunctionProtoType>()); 2325d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2326d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2327b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// Produce an approprioate diagnostic for an ambiguity between a function 2328b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// declarator and a C++ direct-initializer. 2329b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smithstatic void warnAboutAmbiguousFunction(Sema &S, Declarator &D, 2330b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith DeclaratorChunk &DeclType, QualType RT) { 2331b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2332b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith assert(FTI.isAmbiguous && "no direct-initializer / function ambiguity"); 2333b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2334b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If the return type is void there is no ambiguity. 2335b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isVoidType()) 2336b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2337b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2338b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a non-class type can have at most one argument. 2339b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!RT->isRecordType() && FTI.NumArgs > 1) 2340b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2341b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2342b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a reference must have exactly one argument. 2343b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isReferenceType() && FTI.NumArgs != 1) 2344b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2345b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2346b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Only warn if this declarator is declaring a function at block scope, and 2347b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // doesn't have a storage class (such as 'extern') specified. 2348b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!D.isFunctionDeclarator() || 2349b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith D.getFunctionDefinitionKind() != FDK_Declaration || 2350b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith !S.CurContext->isFunctionOrMethod() || 2351d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola D.getDeclSpec().getStorageClassSpec() 2352b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith != DeclSpec::SCS_unspecified) 2353b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2354b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2355b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Inside a condition, a direct initializer is not permitted. We allow one to 2356b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // be parsed in order to give better diagnostics in condition parsing. 2357b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (D.getContext() == Declarator::ConditionContext) 2358b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2359b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2360b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange ParenRange(DeclType.Loc, DeclType.EndLoc); 2361b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2362d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(DeclType.Loc, 2363d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FTI.NumArgs ? diag::warn_parens_disambiguated_as_function_declaration 2364d64effc4e31044c05d6e4400150edb26e914983aRichard Smith : diag::warn_empty_parens_are_function_decl) 2365d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << ParenRange; 2366d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2367d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // If the declaration looks like: 2368d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // T var1, 2369d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // f(); 2370d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // and name lookup finds a function named 'f', then the ',' was 2371d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // probably intended to be a ';'. 2372d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (!D.isFirstDeclarator() && D.getIdentifier()) { 2373d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Comma(D.getCommaLoc(), S.SourceMgr); 2374d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Name(D.getIdentifierLoc(), S.SourceMgr); 2375d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (Comma.getFileID() != Name.getFileID() || 2376d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Comma.getSpellingLineNumber() != Name.getSpellingLineNumber()) { 2377d64effc4e31044c05d6e4400150edb26e914983aRichard Smith LookupResult Result(S, D.getIdentifier(), SourceLocation(), 2378d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Sema::LookupOrdinaryName); 2379d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (S.LookupName(Result, S.getCurScope())) 2380d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(D.getCommaLoc(), diag::note_empty_parens_function_call) 2381d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << FixItHint::CreateReplacement(D.getCommaLoc(), ";") 2382d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << D.getIdentifier(); 2383d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2384d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2385b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2386d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (FTI.NumArgs > 0) { 2387d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration with parameters, eg. "T var(T());", suggest adding parens 2388d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // around the first parameter to turn the declaration into a variable 2389d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2390b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange Range = FTI.ArgInfo[0].Param->getSourceRange(); 2391b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation B = Range.getBegin(); 2392b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation E = S.PP.getLocForEndOfToken(Range.getEnd()); 2393b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // FIXME: Maybe we should suggest adding braces instead of parens 2394b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // in C++11 for classes that don't have an initializer_list constructor. 2395b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(B, diag::note_additional_parens_for_variable_declaration) 2396b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(B, "(") 2397b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(E, ")"); 2398d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } else { 2399d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration without parameters, eg. "T var();", suggest replacing the 2400d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // parens with an initializer to turn the declaration into a variable 2401d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2402b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const CXXRecordDecl *RD = RT->getAsCXXRecordDecl(); 2403d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2404b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Empty parens mean value-initialization, and no parens mean 2405b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // default initialization. These are equivalent if the default 2406b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // constructor is user-provided or if zero-initialization is a 2407b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // no-op. 2408b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RD && RD->hasDefinition() && 2409b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith (RD->isEmpty() || RD->hasUserProvidedDefaultConstructor())) 2410b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_default_ctor) 2411b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateRemoval(ParenRange); 2412b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith else { 2413b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith std::string Init = S.getFixItZeroInitializerForType(RT); 241480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (Init.empty() && S.LangOpts.CPlusPlus11) 2415b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith Init = "{}"; 2416b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!Init.empty()) 2417b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_zero_initialize) 2418b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateReplacement(ParenRange, Init); 2419b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2420b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2421b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith} 2422b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 24238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 24248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 24258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 24268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 24278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 24288cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 24298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 24308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 24314e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &LangOpts = S.getLangOpts(); 24328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 2433cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 2434cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 2435cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 2436cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 24371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2438162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 2439162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 2440162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 24413e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 24423e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 2443162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2444d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Does T refer to a function type with a cv-qualifier or a ref-qualifier? 2445d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith bool IsQualifiedFunction = T->isFunctionProtoType() && 2446d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith (T->castAs<FunctionProtoType>()->getTypeQuals() != 0 || 2447d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None); 2448d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2449a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // If T is 'decltype(auto)', the only declarators we can have are parens 2450a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // and at most one function declarator if this is a function declaration. 2451a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (const AutoType *AT = T->getAs<AutoType>()) { 2452a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (AT->isDecltypeAuto()) { 2453a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith for (unsigned I = 0, E = D.getNumTypeObjects(); I != E; ++I) { 2454a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned Index = E - I - 1; 2455a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DeclaratorChunk &DeclChunk = D.getTypeObject(Index); 2456a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagId = diag::err_decltype_auto_compound_type; 2457a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned DiagKind = 0; 2458a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith switch (DeclChunk.Kind) { 2459a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Paren: 2460a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2461a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Function: { 2462a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith unsigned FnIndex; 2463a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (D.isFunctionDeclarationContext() && 2464a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.isFunctionDeclarator(FnIndex) && FnIndex == Index) 2465a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith continue; 2466a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagId = diag::err_decltype_auto_function_declarator_not_declaration; 2467a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2468a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2469a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Pointer: 2470a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::BlockPointer: 2471a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::MemberPointer: 2472a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 0; 2473a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2474a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Reference: 2475a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 1; 2476a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2477a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith case DeclaratorChunk::Array: 2478a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DiagKind = 2; 2479a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2480a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2481a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 2482a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclChunk.Loc, DiagId) << DiagKind; 2483a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith D.setInvalidType(true); 2484a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith break; 2485a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2486a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2487a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2488a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 248998eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 249098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 249198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 24928ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 2494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 2495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2496d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction) { 2497d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith checkQualifiedFunction(S, T, DeclType); 2498d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = DeclType.Kind == DeclaratorChunk::Paren; 2499d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 25005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 2501075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 25028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 2503075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 25045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 25059af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 25069af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 25078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 25081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 25102865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 25118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 25125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 25135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 25146a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 25156a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25186a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25196a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25206a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 25218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 2522c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 25232865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 25248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 252514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 252614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 25278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 25282865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 25298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 25320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 25336a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 25346a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25376a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25386a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25396a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 25408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 25412865474261a608c7873b87ba4af110d17907896dJohn McCall 25422865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 25432865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 25448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 25455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 25460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 25475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 25486a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 25496a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 25508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 25518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 25526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 25536a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 25546a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2555fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 255694f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 25575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 25585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 25595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 25605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 25615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 25625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 25635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2564c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2565f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2566f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2567f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 25688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2569f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2570f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2571f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 25727f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 25737f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: The optional type qualifiers and the keyword static 25747f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // shall appear only in a declaration of a function parameter with an 25757f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // array type, ... 25767f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static || ATI.TypeQuals) { 257799570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay if (!(D.isPrototypeContext() || 257899570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay D.getContext() == Declarator::KNRTypeListContext)) { 25797f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_outside_prototype) << 25807f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 25817f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Remove the 'static' and the type qualifiers. 25827f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 25837f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 25847f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 25857f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 25867f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 25877f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 25887f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: ... and then only in the outermost array type 25897f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // derivation. 25907f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg unsigned x = chunkIndex; 25917f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg while (x != 0) { 25927f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Walk outwards along the declarator chunks. 25937f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg x--; 25947f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg const DeclaratorChunk &DC = D.getTypeObject(x); 25957f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg switch (DC.Kind) { 25967f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Paren: 25977f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg continue; 25987f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Array: 25997f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Pointer: 26007f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Reference: 26017f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::MemberPointer: 26027f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_not_outermost) << 26037f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 26047f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 26057f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 26067f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 26077f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 26087f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26097f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Function: 26107f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::BlockPointer: 26117f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // These are invalid anyway, so just ignore. 26127f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 26137f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26147f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26157f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 26167f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 2617a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith if (const AutoType *AT = T->getContainedAutoType()) { 2618a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith // We've already diagnosed this for decltype(auto). 2619dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!AT->isDecltypeAuto()) 2620a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith S.Diag(DeclType.Loc, diag::err_illegal_decl_array_of_auto) 2621a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith << getPrintableNameForEntity(Name) << T; 2622dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith T = QualType(); 2623dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith break; 2624a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith } 2625a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith 26268ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 26278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 26285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 26295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2630f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 26315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 26325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 26335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 26345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2635d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = FTI.TypeQuals || FTI.hasRefQualifier(); 26363cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 263734b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 263834b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 263934b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 264034b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 264134b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 264234b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 264360e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !FTI.hasTrailingReturnType() && chunkIndex == 0 && 264460e141e1f87211ca831de6821003d80fe20a06f3Richard Smith !S.getLangOpts().CPlusPlus1y) { 26458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 264634b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 264734b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 264834b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 264954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } else if (FTI.hasTrailingReturnType()) { 2650e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2651e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 26528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2653e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2654e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2655e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2656f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2657a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith (T.hasQualifiers() || !isa<AutoType>(T) || 2658a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith cast<AutoType>(T)->isDecltypeAuto())) { 26598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 266034b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 266134b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 266234b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 266334b41d939a1328f484511c6002ba2456db879a29Richard Smith } 266454655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = S.GetTypeFromParser(FTI.getTrailingReturnType(), &TInfo); 266554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (T.isNull()) { 266654655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith // An error occurred parsing the trailing return type. 266754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = Context.IntTy; 266854655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith D.setInvalidType(true); 266954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } 267034b41d939a1328f484511c6002ba2456db879a29Richard Smith } 267134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 267234b41d939a1328f484511c6002ba2456db879a29Richard Smith 2673e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2674e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2675e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2676e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2677e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2678e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2679e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2680e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2681e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2682e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 26838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2684e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2685e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2686e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2687e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2688aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2689aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2690aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 269119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 269219dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 269319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), diag::err_opencl_half_return) << T; 269419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 269519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 269619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 269719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(D.getIdentifierLoc(), 269819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 1; 269919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(true); 270019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2701aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2702aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 2703ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // Methods cannot return interface types. All ObjC objects are 2704ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman // passed by reference. 2705ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (T->isObjCObjectType()) { 2706ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman SourceLocation DiagLoc, FixitLoc; 2707ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2708ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = TInfo->getTypeLoc().getLocStart(); 2709ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(TInfo->getTypeLoc().getLocEnd()); 2710ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } else { 2711ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman DiagLoc = D.getDeclSpec().getTypeSpecTypeLoc(); 2712ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman FixitLoc = S.PP.getLocForEndOfToken(D.getDeclSpec().getLocEnd()); 2713ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2714ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman S.Diag(DiagLoc, diag::err_object_cannot_be_passed_returned_by_value) 2715ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << 0 << T 2716ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman << FixItHint::CreateInsertion(FixitLoc, "*"); 2717ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2718ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman T = Context.getObjCObjectPointerType(T); 2719ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman if (TInfo) { 2720ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TypeLocBuilder TLB; 2721ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLB.pushFullCopy(TInfo->getTypeLoc()); 2722ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman ObjCObjectPointerTypeLoc TLoc = TLB.push<ObjCObjectPointerTypeLoc>(T); 2723ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TLoc.setStarLoc(FixitLoc); 2724ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman TInfo = TLB.getTypeSourceInfo(Context, T); 2725ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2726ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 2727ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman D.setInvalidType(true); 2728ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman } 2729ddb5a3926d715ab4354ca36117679e3f4d5d3e21Eli Friedman 27305291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 27315291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 27328c952cd40ccec9d720931f27e7d722fed207d536Richard Smith if ((T.getCVRQualifiers() || T->isAtomicType()) && 27338c952cd40ccec9d720931f27e7d722fed207d536Richard Smith !(S.getLangOpts().CPlusPlus && 27348c952cd40ccec9d720931f27e7d722fed207d536Richard Smith (T->isDependentType() || T->isRecordType()))) 27358c952cd40ccec9d720931f27e7d722fed207d536Richard Smith diagnoseIgnoredFunctionQualifiers(S, T, D, chunkIndex); 2736d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 273702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // Objective-C ARC ownership qualifiers are ignored on the function 273802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // return type (by type canonicalization). Complain if this attribute 273902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // was written here. 274002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (T.getQualifiers().hasObjCLifetime()) { 274102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor SourceLocation AttrLoc; 274202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (chunkIndex + 1 < D.getNumTypeObjects()) { 274302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 274402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr = ReturnTypeChunk.getAttrs(); 274502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 274602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 274702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 274802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 274902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 275002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 275102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 275202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isInvalid()) { 275302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor for (const AttributeList *Attr 275402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor = D.getDeclSpec().getAttributes().getList(); 275502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor Attr; Attr = Attr->getNext()) { 275602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (Attr->getKind() == AttributeList::AT_ObjCOwnership) { 275702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = Attr->getLoc(); 275802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor break; 275902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 276002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 276102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 276202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 276302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isValid()) { 276402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // The ownership attributes are almost always written via 276502dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // the predefined 276602dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor // __strong/__weak/__autoreleasing/__unsafe_unretained. 276702dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor if (AttrLoc.isMacroID()) 276802dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor AttrLoc = S.SourceMgr.getImmediateExpansionRange(AttrLoc).first; 276902dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 277002dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor S.Diag(AttrLoc, diag::warn_arc_lifetime_result_type) 277102dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor << T.getQualifiers().getObjCLifetime(); 277202dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 277302dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor } 277402dd79830979e6d83d4420377e8f4c9e4a77439bDouglas Gregor 27758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2776402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2777402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2778b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 27795e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 27808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2781402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2782402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2783402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 27843cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 27853cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2786162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 27878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 27883e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 27893e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 27903cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 2791b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If we see "T var();" or "T var(T());" at block scope, it is probably 2792b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // an attempt to initialize a variable, not a function declaration. 2793b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (FTI.isAmbiguous) 2794b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith warnAboutAmbiguousFunction(S, D, DeclType, T); 2795b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 27968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 27972865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 27982865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 27992865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 28002865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 28012865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 28022865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 28038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2804965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2805965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2806965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 28078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Attrs->getKind() == AttributeList::AT_Overloadable) { 2808965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2809965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2810965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2811965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2812965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2813965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 28148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2815c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 28162865474261a608c7873b87ba4af110d17907896dJohn McCall 28172865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2818788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2819788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 28208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 28212865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 2822d5668a2447c2afeea38815b51a80a5a6ac235599Argyrios Kyrtzidis // Recover by creating a K&R-style function type. 2823d5668a2447c2afeea38815b51a80a5a6ac235599Argyrios Kyrtzidis T = Context.getFunctionNoProtoType(T); 28242865474261a608c7873b87ba4af110d17907896dJohn McCall break; 28252865474261a608c7873b87ba4af110d17907896dJohn McCall } 28262865474261a608c7873b87ba4af110d17907896dJohn McCall 2827e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2828e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 282954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith EPI.HasTrailingReturn = FTI.hasTrailingReturnType(); 2830e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2831c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2832c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2833c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 283491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 28355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 28365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 28375f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 28382865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 28391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28405f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2841f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2842f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2843f85e193739c953358c865005855253af4f68a497John McCall 28445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2845d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 2846c910d4cfa5042f2c9da1eb4e0b6ed59240c0eeeeReid Kleckner QualType ArgTy = Param->getType(); 284778c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 28482dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 28495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 28505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 285172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 28522dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 28535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 28545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 28555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 28565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 28578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 28582ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 28598123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 28602ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 28612ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 28628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 28634565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 28642ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 28658123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 28662ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 28672ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 28680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 28698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28712ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 28722ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 28732ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2874aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2875aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2876aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 287719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (S.getLangOpts().OpenCL) { 287819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly if (!S.getOpenCLOptions().cl_khr_fp16) { 287919dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 288019dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_opencl_half_argument) << ArgTy; 288119dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 28829dd74c5504c743c96ea3a1d691d6a75ec3a98147John McCall Param->setInvalidDecl(); 288319dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 288419dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } else { 288519dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly S.Diag(Param->getLocation(), 288619dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly diag::err_parameters_retval_cannot_have_fp16_type) << 0; 288719dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly D.setInvalidType(); 288819dbb20ac4371fae3190379a7e7bd467af3c00aaJoey Gouly } 2889eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2890eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2891a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2892eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2893183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2894eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2895eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2896eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2897eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2898eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 28995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 290056a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 29018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2902f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2903f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2904f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2905f85e193739c953358c865005855253af4f68a497John McCall } 2906f85e193739c953358c865005855253af4f68a497John McCall 290754e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 29085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2909465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2910f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2911f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2912f85e193739c953358c865005855253af4f68a497John McCall 29135f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 291474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<ParsedType, 2> DynamicExceptions; 291574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<SourceRange, 2> DynamicExceptionRanges; 291674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Expr *NoexceptExpr = 0; 291791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 29188b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 291974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // FIXME: It's rather inefficient to have to split into two vectors 292074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // here. 292174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor unsigned N = FTI.NumExceptions; 292274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.reserve(N); 292374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.reserve(N); 292474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor for (unsigned I = 0; I != N; ++I) { 292574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.push_back(FTI.Exceptions[I].Ty); 292674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); 2927e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 29288b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 292974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr = FTI.NoexceptExpr; 293074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor } 293191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 293274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor S.checkExceptionSpecification(FTI.getExceptionSpecType(), 293374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 293474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 293574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr, 293674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Exceptions, 293774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor EPI); 293891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2939bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose T = Context.getFunctionType(T, ArgTys, EPI); 29405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 294104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 29425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 29435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2944f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2945f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 29467bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2947f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 29487bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2949edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2950edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 29518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 29528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 29547bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 295587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 295687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 295787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 29587bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 29594a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 296087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 296187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 296287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 296314aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 296487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 29659f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 29667bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 296787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 296887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 296987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 297091ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 297191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 297291ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 297391ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 297491ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 297591ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 29767bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 297787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 297887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 2979f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 29808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 2981949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 2982949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 2983949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 2984f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 2985f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2986f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2987949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 29888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 2989949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 2990f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 2991949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 29922865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 29938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 2994f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2995f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 2996f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2997f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2998cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 2999cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 3000cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 3001cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 3002cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 3003c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 3004711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 3005f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclChunk, attrs); 30065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3007971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 30088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 3009183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 3010778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 3011971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 301291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // C++ 8.3.5p4: 3013708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 3014708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 3015708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 3016708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 3017683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 3018683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 3019683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 3020613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 3021613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 3022906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 3023906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 3024613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 3025613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 30268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 3027613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 3028613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 3029613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 3030d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.fct]p6 (w/DR1417): 3031d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // An attempt to specify a function type with a cv-qualifier-seq or a 3032d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // ref-qualifier (including by typedef-name) is ill-formed unless it is: 3033d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type for a non-static member function, 3034d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type to which a pointer to member refers, 3035d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the top-level function type of a function typedef declaration or 3036d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // alias-declaration, 3037d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id in the default argument of a type-parameter, or 3038d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id of a template-argument for a type-parameter 3039d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction && 3040d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !(!FreeFunction && 3041d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static) && 3042d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !IsTypedefName && 3043d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getContext() != Declarator::TemplateTypeArgContext) { 304496a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation Loc = D.getLocStart(); 3045d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceRange RemovalRange; 3046d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith unsigned I; 3047d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (D.isFunctionDeclarator(I)) { 3048d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SmallVector<SourceLocation, 4> RemovalLocs; 3049d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith const DeclaratorChunk &Chunk = D.getTypeObject(I); 3050d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(Chunk.Kind == DeclaratorChunk::Function); 3051d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.hasRefQualifier()) 3052d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); 3053d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Const) 3054d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getConstQualifierLoc()); 3055d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Volatile) 3056d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getVolatileQualifierLoc()); 3057d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // FIXME: We do not track the location of the __restrict qualifier. 3058d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith //if (Chunk.Fun.TypeQuals & Qualifiers::Restrict) 3059d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // RemovalLocs.push_back(Chunk.Fun.getRestrictQualifierLoc()); 3060d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!RemovalLocs.empty()) { 3061d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::sort(RemovalLocs.begin(), RemovalLocs.end(), 3062aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko BeforeThanCompare<SourceLocation>(S.getSourceManager())); 3063d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); 3064d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Loc = RemovalLocs.front(); 3065683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3066683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 3067d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3068d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(Loc, diag::err_invalid_qualified_function_type) 3069d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FreeFunction << D.isFunctionDeclarator() << T 3070d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(FnTy) 3071d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FixItHint::CreateRemoval(RemovalRange); 3072d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 3073d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Strip the cv-qualifiers and ref-qualifiers from the type. 3074d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 3075d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.TypeQuals = 0; 3076d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.RefQualifier = RQ_None; 3077d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 30780567a79130a251bf464ce21ecf3f8b9fb5207900Reid Kleckner T = Context.getFunctionType(FnTy->getResultType(), FnTy->getArgTypes(), 3079bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose EPI); 3080e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith // Rebuild any parens around the identifier in the function type. 3081e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 3082e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith if (D.getTypeObject(i).Kind != DeclaratorChunk::Paren) 3083e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith break; 3084e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith T = S.BuildParenType(T); 3085e925322569cb4aad26cc62036a13e2d3daed862dRichard Smith } 3086971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 3087971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 30881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3089711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 3090711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 3091711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 3092f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith processTypeAttrs(state, T, TAL_DeclName, attrs); 3093711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3094711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 3095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 3096711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3097148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 3098148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 309991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // as const. 3100148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 3101737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 3102737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 3103737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 310491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If there was an ellipsis in the declarator, the declaration declares a 3105a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 3106a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 3107a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 310891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // A declarator-id or abstract-declarator containing an ellipsis shall 3109a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 3110a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 3111a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 3112a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 3113a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 311491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // [...] When it is part of a parameter-declaration-clause, the 311591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // parameter pack is a function parameter pack (14.5.3). The type T 3116a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 311791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // a template parameter pack; each template parameter pack in T is 3118a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 3119a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3120a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 3121a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 3122a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 312391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(D.getEllipsisLoc(), 3124a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 3125a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 3126a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3127a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 312866874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3129a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3130a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 313191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3132a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 3133a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 313491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a template-parameter is a [...] is a parameter-declaration that 3135a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 3136a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 3137a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 3138a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 3139a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 3140a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 3141a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 314266874fb18afbffb8b2ca05576851a64534be3352David Blaikie T = Context.getPackExpansionType(T, None); 3143e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 3144e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 314580ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith LangOpts.CPlusPlus11 3146e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 3147e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 3148a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 314991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3150a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 3151a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 3152cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 3153cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 3154a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 31550b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 3156162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 31573e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 3158a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 3159a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 3160a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 3161a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 3162a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 316317b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 3164a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 3165f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 316614f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith case Declarator::ConversionIdContext: 31677796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 3168683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 3169a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 3170a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 31718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 3172a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 3173a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 3174a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3175a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3176e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 3177bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 3178bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 3179bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 3180bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 3181db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 31828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 31838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 31848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 31858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 31868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 31878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 31888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 31898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 31908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 31918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 31928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 31938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 31948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 31958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 31968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 31978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 31988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 31998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 32008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 32014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount) 32028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 320391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 32048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 32055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 32065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 320731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 320831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 320931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 321031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 321131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 321231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 321331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 321431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 321531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 321631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 321731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 321831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 321931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 322031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 322131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 322231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 322331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 322431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 322531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 322631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 322731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 32288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 322931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 323031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 323131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 323231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 32333026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 323431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 323531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 323631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 323731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 323831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 323931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 324031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 324131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 324231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 324331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 324431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 324531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis &S.Context.Idents.get(attrStr), SourceLocation(), 324693f95f2a2cbb6bb3d17bfb5fc74ce1cccea751b6Sean Hunt /*args*/ 0, 0, AttributeList::AS_GNU); 324731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 324831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 324931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 325031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 325131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 325248d798ce32447607144db70a484cdb99c1180663Benjamin Kramer/// \brief Used for transferring ownership in casts resulting in l-values. 325331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 325431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 325531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 325631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 325731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 325831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 325931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 32606ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 326131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 326231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 326331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 326431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 326531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 326631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 326731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 326831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 326931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 327031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 32716ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 32726ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 327331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 327431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 327531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 327631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 32776ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 32786ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 32796ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 328031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 328131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 328231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 328331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 328431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 328531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 328631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 328731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 32886ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 328931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 329091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier DeclaratorChunk &chunk = D.getTypeObject(inner); 329131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 329231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 329331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 32946ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 329531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 329631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 329731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 329831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 329931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 330031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 330131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 330231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 330331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 330431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 330531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 330631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 330731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 330831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 330931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 331031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 33114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 331231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 331331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 331431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 331531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 331631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 331731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 331831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 331931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 332014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 332114aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 332214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 332314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 33248e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_AddressSpace; 332514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 33268e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Regparm; 332714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 33288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_VectorSize; 332914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 33308e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonVectorType; 333114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 33328e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonPolyVectorType; 333314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 33348e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCGC; 3335b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 33368e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCOwnership; 333714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 33388e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NoReturn; 333914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 33408e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_CDecl; 334114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 33428e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_FastCall; 334314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 33448e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_StdCall; 334514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 33468e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ThisCall; 334714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 33488e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pascal; 3349414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 33505b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributedType::attr_pcs_vfp: 33518e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pcs; 3352263366f9241366f29ba65b703120f302490c39ffDerek Schuff case AttributedType::attr_pnaclcall: 3353263366f9241366f29ba65b703120f302490c39ffDerek Schuff return AttributeList::AT_PnaclCall; 335438980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei case AttributedType::attr_inteloclbicc: 335538980086c0f791e8c23cc882574f18e5b4a87db6Guy Benyei return AttributeList::AT_IntelOclBicc; 3356aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr32: 3357aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr32; 3358aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_ptr64: 3359aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_Ptr64; 3360aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_sptr: 3361aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_SPtr; 3362aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributedType::attr_uptr: 3363aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return AttributeList::AT_UPtr; 336414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 336514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 336614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 336714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 336814aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 336914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 337014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 337114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 337214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 337314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 337414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 337514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 337614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 337714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 337814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 337914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 338014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrExprOperand()) 338114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrExprOperand(attrs->getArg(0)); 338214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall else if (TL.hasAttrEnumOperand()) 338314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrEnumOperandLoc(attrs->getParameterLoc()); 338414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 338514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 338614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 338714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 338814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 338914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 339051bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 339151bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 3392c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 339351bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 3394f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 339551bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 339691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 3397c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 3398f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 339914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 340014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 340114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 340214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 340351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 340451bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 340551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 340651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 340751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 340851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 340951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 341051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 34111de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // FIXME. We should have DS.getTypeSpecTypeEndLoc(). But, it requires 34121de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // addition field. What we have is good enough for dispay of location 34131de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // of 'fixit' on interface name. 34141de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian TL.setNameEndLoc(DS.getLocEnd()); 3415c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 3416c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 3417c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 3418c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 3419c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 3420c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 3421c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 3422c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 3423c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 3424c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 342554e14c4db764c0636160d26c5bbf491637c83a76John McCall 3426c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 342754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 342854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 342954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 343054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 343154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 343254e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 343354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 343454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 343554e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 343654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 343754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 343854e14c4db764c0636160d26c5bbf491637c83a76John McCall } 343951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 344054e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 344154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 3442c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 344351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 3444833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 3445a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 3446b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3447833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3448833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 3449833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 3450a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 34510daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 3452833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 3453833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3454833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3455e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 3456e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 345739e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ElabTL = OldTL.castAs<ElaboratedTypeLoc>(); 345839e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TemplateSpecializationTypeLoc NamedTL = ElabTL.getNamedTypeLoc() 345939e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie .castAs<TemplateSpecializationTypeLoc>(); 3460e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 346144ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } else { 346239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(OldTL.castAs<TemplateSpecializationTypeLoc>()); 346344ee0a710c59d8e6793189f903bae21c16814324Eli Friedman assert(TL.getRAngleLoc() == OldTL.castAs<TemplateSpecializationTypeLoc>().getRAngleLoc()); 346444ee0a710c59d8e6793189f903bae21c16814324Eli Friedman } 346544ee0a710c59d8e6793189f903bae21c16814324Eli Friedman 3466833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3467cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 3468cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 3469cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3470cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3471cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3472cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 3473cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 3474cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3475cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3476b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 3477cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 3478b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3479cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 3480cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3481ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 3482ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 3483ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 3484ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3485ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 3486ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 3487ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 3488ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3489ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 3490ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3491ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 3492ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 3493ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 3494ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 3495ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 3496ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 3497ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 3498ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 3499ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 3500ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 3501ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 3502ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 3503ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 3504ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3505ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3506e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 3507e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 3508e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 3509253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 3510e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 3511b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3512e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 351339e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<ElaboratedTypeLoc>()); 3514e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 3515e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3516e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 351738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara TL.setElaboratedKeywordLoc(Keyword != ETK_None 351838a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ? DS.getTypeSpecTypeLoc() 351938a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara : SourceLocation()); 3520e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 35219e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 3522e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 3523e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3524e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 352566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 352666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 352766581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 352866581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 352939e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy(TInfo->getTypeLoc().castAs<DependentNameTypeLoc>()); 353033500955d731c73717af52088b7fc0e7a85681e7John McCall } 353133500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 353233500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 353366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 353466581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 353566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 353666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 353739e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TL.copy( 353839e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie TInfo->getTypeLoc().castAs<DependentTemplateSpecializationTypeLoc>()); 35390daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 35400daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 35410daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 3542e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3543b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 35444cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc can come from either an _Atomic(...) type specifier 35454cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // or an _Atomic qualifier. 35464cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (DS.getTypeSpecType() == DeclSpec::TST_atomic) { 35474cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getTypeSpecTypeLoc()); 35484cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(DS.getTypeofParensRange()); 354991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 35504cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TypeSourceInfo *TInfo = 0; 35514cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 35524cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith assert(TInfo); 35534cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 35544cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } else { 35554cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setKWLoc(DS.getAtomicSpecLoc()); 35564cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // No parens, to indicate this was spelled as an _Atomic qualifier. 35574cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith TL.setParensRange(SourceRange()); 35584cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Visit(TL.getValueLoc()); 35594cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 3560b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 3561e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 356251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 356351bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 3564c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 356551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 356651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 3567eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 356851bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 3569b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 357051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 3571f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 357251bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 3573b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 3574b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 35754adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 357651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 35779f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 357851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 357912df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner void VisitDecayedTypeLoc(DecayedTypeLoc TL) { 358012df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner llvm_unreachable("decayed type locs not expected here!"); 358112df246d6dea2ee1f92c186f922f1afcf499647aReid Kleckner } 35824adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3583f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3584f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3585f85e193739c953358c865005855253af4f68a497John McCall } 358651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 358751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 358851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 35894adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 359051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 359151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 359251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 35934adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 359451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 359551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 359651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 35974adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 359851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 359951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3600b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3601b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3602b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3603b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3604b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3605b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3606b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3607b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3608b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3609b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3610b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3611b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 361239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie DependentNameTypeLoc DNTLoc = ClsTL.castAs<DependentNameTypeLoc>(); 361338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara DNTLoc.setElaboratedKeywordLoc(SourceLocation()); 3614b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3615b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3616b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3617b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3618b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3619b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3620b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3621b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 362239e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie ElaboratedTypeLoc ETLoc = ClsTL.castAs<ElaboratedTypeLoc>(); 362338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ETLoc.setElaboratedKeywordLoc(SourceLocation()); 3624b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3625b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3626b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3627b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3628b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3629b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3630b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3631b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3632b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3633b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3634b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3635b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3636b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3637b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3638b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 363951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3640b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 36414adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 364251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 364351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 364454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 364554e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 364651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 364751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 364851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 364951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 365051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 365151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 365251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 365351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 365451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 365551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 365651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 365751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 365851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 365951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 366051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3661796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3662796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 366351bd803fbdade51d674598ed45da3d54190a656cJohn McCall 366451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 366559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setLParenLoc(FTI.getLParenLoc()); 366659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TL.setRParenLoc(FTI.getRParenLoc()); 366754e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3668d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 366954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 36704adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 367151bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 36724adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3673075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3674075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3675075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3676075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3677075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 36781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 367951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 36809f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 36814adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 368251bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 368351bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 36844adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 36854cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smithstatic void fillAtomicQualLoc(AtomicTypeLoc ATL, const DeclaratorChunk &Chunk) { 36864cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith SourceLocation Loc; 36874cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith switch (Chunk.Kind) { 36884cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Function: 36894cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Array: 36904cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Paren: 36914cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith llvm_unreachable("cannot be _Atomic qualified"); 36924cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 36934cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Pointer: 36944cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith Loc = SourceLocation::getFromRawEncoding(Chunk.Ptr.AtomicQualLoc); 36954cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 36964cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 36974cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::BlockPointer: 36984cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::Reference: 36994cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith case DeclaratorChunk::MemberPointer: 37004cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // FIXME: Provide a source location for the _Atomic keyword. 37014cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith break; 37024cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 37034cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 37044cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setKWLoc(Loc); 37054cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith ATL.setParensRange(SourceRange()); 37064cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith} 37074cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 3708a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 370951bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 371051bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 371105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 371205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 371305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 371405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 371505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3716a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 371705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 371805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3719a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3720a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 372151bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3722a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3723a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 372439e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie CurrTL.castAs<PackExpansionTypeLoc>().setEllipsisLoc(D.getEllipsisLoc()); 372591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3726a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 372791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 37288ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 37294cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // An AtomicTypeLoc might be produced by an atomic qualifier in this 37304cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith // declarator chunk. 37314cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith if (AtomicTypeLoc ATL = CurrTL.getAs<AtomicTypeLoc>()) { 37324cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith fillAtomicQualLoc(ATL, D.getTypeObject(i)); 37334cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith CurrTL = ATL.getValueLoc().getUnqualifiedLoc(); 37344cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith } 37354cf4a5e96ab0babd13774b17112e7c1d83042ea7Richard Smith 373639e6ab4be93d9c5e729a578ddd9d415cd2d49872David Blaikie while (AttributedTypeLoc TL = CurrTL.getAs<AttributedTypeLoc>()) { 373714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 373814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 373914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 374014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3741b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 374251bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 37434adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 374491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3745b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3746b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3747b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 374805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 374905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 375005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3751b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3752c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 375305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 375491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3755a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 37564adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 37574adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3758a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3759b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 37601bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 37611bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 37621bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 376391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3764eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3765a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 37661bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 37671bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3768b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 37691bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 37701bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 37711bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 37721bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3773b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 377435d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 377535d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 37761bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 37771bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3778f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 37795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 37805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 37815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 37821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3783d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3784bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 37855153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3786809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 37875912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3788e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3789cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3790cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 37916b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Likewise, we don't want to do this for alias declarations, because 37926b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // we are actually going to build a declaration from this eventually. 37936b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith if (D.getContext() != Declarator::ObjCParameterContext && 37946b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasDeclContext && 37956b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith D.getContext() != Declarator::AliasTemplateContext) 3796cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3797e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 37984e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 3799402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 38006d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3801402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3802402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3803b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 38045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 38055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3806e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3807e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3808e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3809e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3810e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3811e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3812e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3813c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3814c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3815c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3816232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3817232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3818c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3819c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 38201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3821c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 38220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3823232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 382429e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 382529e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3826232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3827c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3828e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3829c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3830232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 38311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3832020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3833020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3834020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3835020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3836020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3837020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3838020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3839020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3840232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3841545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3842baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 3843baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 3844e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3845c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3846232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3847545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 3848232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3849ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3850ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 38519f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 38529f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 38539f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << ASArgExpr->getSourceRange(); 3854e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3855c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3856232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3857232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3858efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3859efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3860efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3861efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3862efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3863e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3864efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3865efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3866efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3867efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3868efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 38690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3870efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3871efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 38727348454025693dd20a411c2bcaabd4460cb87559Joerg Sonnenberger << int(Qualifiers::MaxAddressSpace) << ASArgExpr->getSourceRange(); 3873e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3874efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3875efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3876efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 38771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3878f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3879c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3880c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3881d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// Does this type have a "direct" ownership qualifier? That is, 3882d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// is it written like "__strong id", as opposed to something like 3883d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// "typeof(foo)", where that happens to be strong? 3884d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCallstatic bool hasDirectOwnershipQualifier(QualType type) { 3885d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Fast path: no qualifier at all. 3886d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall assert(type.getQualifiers().hasObjCLifetime()); 3887d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3888d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (true) { 3889d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // __strong id 3890d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (const AttributedType *attr = dyn_cast<AttributedType>(type)) { 3891d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (attr->getAttrKind() == AttributedType::attr_objc_ownership) 3892d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3893d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3894d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = attr->getModifiedType(); 3895d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3896d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // X *__strong (...) 3897d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else if (const ParenType *paren = dyn_cast<ParenType>(type)) { 3898d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = paren->getInnerType(); 389991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3900d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // That's it for things we want to complain about. In particular, 3901d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // we do not want to look through typedefs, typeof(expr), 3902d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // typeof(type), or any other way that the type is somehow 3903d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // abstracted. 3904d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else { 390591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3906d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return false; 3907d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3908d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3909d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall} 3910d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3911b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3912f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3913f85e193739c953358c865005855253af4f68a497John McCall/// 3914f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3915b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3916f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3917f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3918e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 3919e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3920dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith if (!type->isDependentType() && !type->isUndeducedType()) { 3921e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 3922e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 3923e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 3924e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3925e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 3926e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 3927e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 3928e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 3929e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 3930e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3931e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3932b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall 3933b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // Don't accept an ownership attribute in the declspec if it would 3934b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall // just be the return type of a block pointer. 3935b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (state.isProcessingDeclSpec()) { 3936b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall Declarator &D = state.getDeclarator(); 3937b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (maybeMovePastReturnType(D, D.getNumTypeObjects())) 3938b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall return false; 3939b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall } 3940e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3941f85e193739c953358c865005855253af4f68a497John McCall 3942f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3943440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3944440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3945440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3946f85e193739c953358c865005855253af4f68a497John McCall 3947f85e193739c953358c865005855253af4f68a497John McCall if (!attr.getParameterName()) { 39483cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(AttrLoc, diag::err_attribute_argument_type) 39493cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 3950f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3951f85e193739c953358c865005855253af4f68a497John McCall return true; 3952f85e193739c953358c865005855253af4f68a497John McCall } 3953f85e193739c953358c865005855253af4f68a497John McCall 3954d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Consume lifetime attributes without further comment outside of 3955d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // ARC mode. 39564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().ObjCAutoRefCount) 3957d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3958d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3959f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 3960f85e193739c953358c865005855253af4f68a497John McCall if (attr.getParameterName()->isStr("none")) 3961f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 3962f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("strong")) 3963f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 3964f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("weak")) 3965f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 3966f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("autoreleasing")) 3967f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 3968f85e193739c953358c865005855253af4f68a497John McCall else { 3969440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 3970b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << attr.getParameterName(); 3971f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3972f85e193739c953358c865005855253af4f68a497John McCall return true; 3973f85e193739c953358c865005855253af4f68a497John McCall } 3974f85e193739c953358c865005855253af4f68a497John McCall 3975d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall SplitQualType underlyingType = type.split(); 3976d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3977d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Check for redundant/conflicting ownership qualifiers. 3978d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (Qualifiers::ObjCLifetime previousLifetime 3979d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall = type.getQualifiers().getObjCLifetime()) { 3980d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // If it's written directly, that's an error. 3981d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (hasDirectOwnershipQualifier(type)) { 3982d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 3983d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall << type; 3984d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3985d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3986d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3987d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Otherwise, if the qualifiers actually conflict, pull sugar off 3988d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // until we reach a type that is directly qualified. 3989d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (previousLifetime != lifetime) { 3990d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // This should always terminate: the canonical type is 3991d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // qualified, so some bit of sugar must be hiding it. 3992d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (!underlyingType.Quals.hasObjCLifetime()) { 3993d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType = underlyingType.getSingleStepDesugaredType(); 3994d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3995d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.removeObjCLifetime(); 3996d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3997d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3998d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3999d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.addObjCLifetime(lifetime); 4000f85e193739c953358c865005855253af4f68a497John McCall 4001e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 4002e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 4003e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 4004e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 4005e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 4006e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 4007e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 4008e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 4009e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 4010e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4011fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman S.Diag(AttrLoc, diag::warn_type_attribute_wrong_type) << name 4012fe6dec6efaf860ed3eb20ee13267f35129f7747aAaron Ballman << TDS_ObjCObjOrBlock << type; 4013e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 4014e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 4015f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 4016e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 4017d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = S.Context.getQualifiedType(underlyingType); 4018f85e193739c953358c865005855253af4f68a497John McCall 4019f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 4020f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 4021440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 4022b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 4023f85e193739c953358c865005855253af4f68a497John McCall origType, type); 4024f85e193739c953358c865005855253af4f68a497John McCall 40259f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 4026f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 40270a7dd788dbef975f35f273c7ab913f480f7edd60John McCall !S.getLangOpts().ObjCARCWeak && !NonObjCPointer) { 4028f85e193739c953358c865005855253af4f68a497John McCall 4029f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 4030f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 4031f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 4032440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 4033440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 4034f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 4035f85e193739c953358c865005855253af4f68a497John McCall } else { 4036440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 4037f85e193739c953358c865005855253af4f68a497John McCall } 4038f85e193739c953358c865005855253af4f68a497John McCall 4039f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 4040f85e193739c953358c865005855253af4f68a497John McCall return true; 4041f85e193739c953358c865005855253af4f68a497John McCall } 404291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 404391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Forbid __weak for class objects marked as 4044742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 4045742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 4046b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall if (const ObjCObjectPointerType *ObjT = 4047b2381b1c91ac5dc2407e98f36e3a6ba93d771791John McCall type->getAs<ObjCObjectPointerType>()) { 40484e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl()) { 40494e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (Class->isArcWeakrefUnavailable()) { 40504e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 40514e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(ObjT->getInterfaceDecl()->getLocation(), 40524e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith diag::note_class_declared); 40534e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith } 4054742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4055742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 4056742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 405791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4058f85e193739c953358c865005855253af4f68a497John McCall return true; 4059f85e193739c953358c865005855253af4f68a497John McCall} 4060f85e193739c953358c865005855253af4f68a497John McCall 4061711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 4062711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 4063711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 4064711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 4065711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 4066711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4067711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4068711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4069711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4070711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 4071711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 4072711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 4073711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 4074711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4075711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4076711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 4077711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 4078711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4079711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4080d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 40811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4082d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 4083711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 40843cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_argument_type) 40853cd6feb87a62fb52c31cbc83655d76ace020513fAaron Ballman << attr.getName() << AANT_ArgumentString; 4086711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4087711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4088ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 40890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 4090711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 4091baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4092baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << attr.getName() << 1; 4093711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4094711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4095d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 4096711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 40970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 4098711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 40990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 4100d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 4101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 4102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 4103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4105d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 41061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 410714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 410814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 410914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 411014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 411114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 411214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 411314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 411414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 4115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4116d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 4117d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 4118e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 4119e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 4120e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 4121e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 4122e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 4123e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 4124e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 4125e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 4126e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 4127e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 4128e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 4129e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 4130e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 4131e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 4132e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 4133e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 4134e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 4135e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 4136e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 4137e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4138e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4139e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 4140e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 41415f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 4142e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4143e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 4144e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 4145e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 4146e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 4147e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 4148e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4149e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 4150e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 4151e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 4152e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 4153e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 4154e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 4155e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 4156e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 4157e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 4158e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 4159e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 4160e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 4161e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 4162e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 4163e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 4164e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 4165e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 4166e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 4167e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 4168e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 4169e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4170e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4171e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 4172e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 4173e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4174e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4175e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4176e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4177e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 4178e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 4179e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4180e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 4181e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 4182e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 4183e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4184e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 4185e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 4186e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4187e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4188e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 4189e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 4190e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 4191e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 4192e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4193e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 4194e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 4195e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 4196e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4197e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 4198200fa53fd420aa8369586f569dbece04930ad6a3John McCall if (SplitOld.Quals.empty()) 4199200fa53fd420aa8369586f569dbece04930ad6a3John McCall return wrap(C, SplitOld.Ty, I); 4200200fa53fd420aa8369586f569dbece04930ad6a3John McCall return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); 4201e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4202e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4203e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 4204e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 4205e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4206e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 4207e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 4208e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 4209e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 4210e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 4211e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4212e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 4213e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 4214e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 4215e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4216e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4217e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 4218e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 4219e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 4220e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4221e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4222e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 4223e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 4224e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 4225e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4226e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4227e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 4228e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 4229e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 4230e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 4231e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4232e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4233e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 4234e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 4235e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 4236e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 4237e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 4238e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 4239e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 4240e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4241e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4242e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4243e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 4244e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 4245e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 4246e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 4247e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4248aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballmanstatic bool handleMSPointerTypeQualifierAttr(TypeProcessingState &State, 4249aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList &Attr, 4250aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType &Type) { 4251aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Sema &S = State.getSema(); 4252aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4253aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributeList::Kind Kind = Attr.getKind(); 4254aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman QualType Desugared = Type; 4255aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman const AttributedType *AT = dyn_cast<AttributedType>(Type); 4256aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman while (AT) { 4257aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind CurAttrKind = AT->getAttrKind(); 4258aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4259aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot specify duplicate type attributes, so if the attribute has 4260aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // already been applied, flag it. 4261aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (getAttrListKind(CurAttrKind) == Kind) { 4262aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::warn_duplicate_attribute_exact) 4263aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << Attr.getName(); 4264aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4265aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4266aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4267aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // You cannot have both __sptr and __uptr on the same type, nor can you 4268aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // have __ptr32 and __ptr64. 4269aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if ((CurAttrKind == AttributedType::attr_ptr32 && 4270aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr64) || 4271aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_ptr64 && 4272aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_Ptr32)) { 4273aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4274aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__ptr32'" << "'__ptr64'"; 4275aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4276aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } else if ((CurAttrKind == AttributedType::attr_sptr && 4277aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_UPtr) || 4278aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman (CurAttrKind == AttributedType::attr_uptr && 4279aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Kind == AttributeList::AT_SPtr)) { 4280aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 4281aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman << "'__sptr'" << "'__uptr'"; 4282aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4283aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4284aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4285aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Desugared = AT->getEquivalentType(); 4286aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AT = dyn_cast<AttributedType>(Desugared); 4287aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4288aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4289aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // Pointer type qualifiers can only operate on pointer types, but not 4290aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman // pointer-to-member types. 4291aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!isa<PointerType>(Desugared)) { 4292aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman S.Diag(Attr.getLoc(), Type->isMemberPointerType() ? 4293aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_no_member_pointers : 4294aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman diag::err_attribute_pointers_only) << Attr.getName(); 4295aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return true; 4296aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4297aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4298aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman AttributedType::Kind TAK; 4299aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman switch (Kind) { 4300aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman default: llvm_unreachable("Unknown attribute kind"); 4301aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr32: TAK = AttributedType::attr_ptr32; break; 4302aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_Ptr64: TAK = AttributedType::attr_ptr64; break; 4303aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_SPtr: TAK = AttributedType::attr_sptr; break; 4304aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman case AttributeList::AT_UPtr: TAK = AttributedType::attr_uptr; break; 4305aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman } 4306aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 4307aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman Type = S.Context.getAttributedType(TAK, Type, Type); 4308aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman return false; 4309aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman} 4310aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman 43115b92696c8f1f8ef943ad87397b95c031b5787305Reid Klecknerstatic AttributedType::Kind getCCTypeAttrKind(AttributeList &Attr) { 43125b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner assert(!Attr.isInvalid()); 43135b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner switch (Attr.getKind()) { 43145b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner default: 43155b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("not a calling convention attribute"); 43165b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_CDecl: 43175b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_cdecl; 43185b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_FastCall: 43195b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_fastcall; 43205b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_StdCall: 43215b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_stdcall; 43225b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_ThisCall: 43235b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_thiscall; 43245b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pascal: 43255b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pascal; 43265b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_Pcs: { 43275b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // We know attr is valid so it can only have one of two strings args. 43285b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner StringLiteral *Str = cast<StringLiteral>(Attr.getArg(0)); 43295b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return llvm::StringSwitch<AttributedType::Kind>(Str->getString()) 43305b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs", AttributedType::attr_pcs) 43315b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner .Case("aapcs-vfp", AttributedType::attr_pcs_vfp); 43325b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 43335b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_PnaclCall: 43345b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_pnaclcall; 43355b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner case AttributeList::AT_IntelOclBicc: 43365b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner return AttributedType::attr_inteloclbicc; 43375b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner } 43385b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner llvm_unreachable("unexpected attribute kind!"); 43395b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner} 43405b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner 4341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 4342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 4343711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 4344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 4345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 4346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 4347e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 43492455636163fdd18581d7fdae816433f886d88213Mike Stump 43508e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NoReturn) { 4351711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 435204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 4353e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 4354e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 4355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 4357425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4358425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 4359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 4360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4362711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 4363425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 4364f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 4365f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 43668e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NSReturnsRetained) { 43674e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(S.getLangOpts().ObjCAutoRefCount && 4368f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 4369f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 4370f85e193739c953358c865005855253af4f68a497John McCall 4371f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 4372f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 4373f85e193739c953358c865005855253af4f68a497John McCall return false; 4374f85e193739c953358c865005855253af4f68a497John McCall 4375f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 4376f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 4377f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4378f85e193739c953358c865005855253af4f68a497John McCall return true; 4379f85e193739c953358c865005855253af4f68a497John McCall } 4380f85e193739c953358c865005855253af4f68a497John McCall 43818e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_Regparm) { 4382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 4383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 4384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 43851e030eb1194763b42c1752723be23b1515f48981John McCall 4386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 4387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 4388008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 43891e030eb1194763b42c1752723be23b1515f48981John McCall 4390ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 4391ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 4392ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 4393ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 4394ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4395ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 4396ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 4397ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4398ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4399ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 4400ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 440191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier FunctionType::ExtInfo EI = 4402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 4403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4405425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 4406425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 440782bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman // Delay if the type didn't work out to a function. 440882bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman if (!unwrapped.isFunctionType()) return false; 440982bfa19fe3be324b13fdbcda46304b52c500f0d4Aaron Ballman 441004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 4411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 4412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 4413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4414f82b4e85b1219295cad4b5851b035575bc293010John McCall 4415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 4416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 4417064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 4418e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 4419ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 4420ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 4421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4422e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 442304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 44248e68f1c8a2919ea83c2053731d6011074f1062e1Roman Divacky if (CCOld != (S.LangOpts.MRTD ? CC_X86StdCall : CC_Default)) { 442504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 4426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 442704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 442804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 4429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 443104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 443204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 443304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 443404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 4435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 4436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 443704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 444004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 444104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 4442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 444304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 4444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 444504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 4446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 4447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 444804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4449ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 4450ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 4451a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 4452ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 4453ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 4454ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 4455ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 4456ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 4457ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 445804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 4459f82b4e85b1219295cad4b5851b035575bc293010John McCall 44605b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // Modify the CC from the wrapped function type, wrap it all back, and then 44615b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // wrap the whole thing in an AttributedType as written. The modified type 44625b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner // might have a different CC if we ignored the attribute. 4463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 44645b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner QualType Equivalent = 44655b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 44665b92696c8f1f8ef943ad87397b95c031b5787305Reid Kleckner type = S.Context.getAttributedType(getCCTypeAttrKind(attr), type, Equivalent); 4467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 4468f82b4e85b1219295cad4b5851b035575bc293010John McCall} 4469f82b4e85b1219295cad4b5851b035575bc293010John McCall 4470207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 4471207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 4472207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 4473207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 4474207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 4475207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 4476baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4477baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4478207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4479207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4480207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4481207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 4482207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 4483207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4484207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 44859f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 44869f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 44879f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4488207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4489207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 4490207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4491207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 4492207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 4493207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 4494207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 4495207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 4496207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4497207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4498207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 4499207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 4500207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 4501207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 4502207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 4503207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4504207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 4505207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 4506207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 45076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 45086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 45096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 45106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 45116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 45126e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 45136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 4514788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 4515788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 451656affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 45176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 4518baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4519baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 4520e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 45216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 45226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 45236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 45246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 4525ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 4526ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 45279f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 45289f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 45299f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << sizeExpr->getSourceRange(); 4530e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 45316e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 45326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 45336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 45341652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (!CurType->isBuiltinType() || 45351652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 45366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4537e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 45386e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 45396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 45406e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 45416e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 45426e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 45436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 45446e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 45456e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 45466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 45476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4548e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 45496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 45506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 45511652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman if (VectorType::isVectorSizeTooLarge(vectorSize / typeSize)) { 45521652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_size_too_large) 45531652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman << sizeExpr->getSourceRange(); 45541652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman Attr.setInvalid(); 45551652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman return; 45561652ed1cd2cb63e0d0cb74c67a40d9dc5cab6b89Eli Friedman } 45576e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 45586e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 45596e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4560e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 45616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 45626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 45636e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 45646e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 45656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 4566788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 4567e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 45686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 45696e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 45704ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 45714ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 457291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierstatic void HandleExtVectorTypeAttr(QualType &CurType, 457391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier const AttributeList &Attr, 45744ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 45754ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 457691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 45774ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 45784ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getParameterName()) { 45794ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 4580e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 45814ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 45824ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 4583e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 4584e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, TemplateKWLoc, 4585e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara id, false, false); 45864ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 45874ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 458891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 45894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 45904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 45914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // check the attribute arguments. 45924ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getNumArgs() != 1) { 4593baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4594baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 45954ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 45964ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 45974ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Attr.getArg(0); 45984ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 459991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 46004ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 46014ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 46024ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 46034ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 46044ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 46054ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 4606b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northoverstatic bool isPermittedNeonBaseType(QualType &Ty, 4607b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover VectorType::VectorKind VecKind, 4608b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover bool IsAArch64) { 4609b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover const BuiltinType *BTy = Ty->getAs<BuiltinType>(); 4610b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (!BTy) 4611b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return false; 4612b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4613b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (VecKind == VectorType::NeonPolyVector) { 4614b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64) { 4615b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch64 polynomial vectors are unsigned 4616b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::UChar || 4617b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort; 4618b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } else { 4619b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // AArch32 polynomial vector are signed. 4620b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4621b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short; 4622b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4623b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover } 4624b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4625b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // Non-polynomial vector types: the usual suspects are allowed, as well as 4626b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover // float64_t on AArch64. 4627b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover if (IsAArch64 && BTy->getKind() == BuiltinType::Double) 4628b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return true; 4629b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 4630b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover return BTy->getKind() == BuiltinType::SChar || 4631b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UChar || 4632b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Short || 4633b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UShort || 4634b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Int || 4635b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::UInt || 4636b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::LongLong || 4637b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::ULongLong || 4638b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Float || 4639b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover BTy->getKind() == BuiltinType::Half; 4640b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover} 4641b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover 46424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 46434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 46444211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 46454211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 46464211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 46474211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 46484211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 46494211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 46504211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 46519f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::VectorKind VecKind) { 46524211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 46534211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 4654baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 4655baec77865b3ce64bb942dddc5dc2fada84ce5099Aaron Ballman << Attr.getName() << 1; 46564211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 46574211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 46584211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 46594211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 46604211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 46614211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 46624211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 46634211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 46649f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman S.Diag(Attr.getLoc(), diag::err_attribute_argument_type) 46659f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << Attr.getName() << AANT_ArgumentIntegerConstant 46669f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman << numEltsExpr->getSourceRange(); 46674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 46684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 46694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 46704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 4671e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover llvm::Triple::ArchType Arch = 4672b793f0d3448a15277cd6b6cc4ba558ded39a8084Tim Northover S.Context.getTargetInfo().getTriple().getArch(); 4673e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover if (!isPermittedNeonBaseType(CurType, VecKind, 4674e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Arch == llvm::Triple::aarch64)) { 4675e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4676e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover Attr.setInvalid(); 4677e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover return; 46784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 4679e2d20c9a539cdfa75db6382eb5a327a73e5e0e1bTim Northover 46804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 46814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 46824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 46834211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 46844211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 46854211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 46864211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 46874211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 46884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 46894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 46904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 46914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 46924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 4693711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 4694f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith TypeAttrLocation TAL, AttributeList *attrs) { 4695c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 4696c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 4697c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 4698c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 4699711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4700711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 4701711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 4702711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 4703711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 4704711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4705e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 4706711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 4707e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 4708e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 4709cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute()) { 4710cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // [[gnu::...]] attributes are treated as declaration attributes, so may 4711cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // not appertain to a DeclaratorChunk, even if we handle them as type 4712cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // attributes. 4713cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.getScopeName() && attr.getScopeName()->isStr("gnu")) { 4714cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (TAL == TAL_DeclChunk) { 4715cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4716cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_cxx11_gnu_attribute_on_type) 4717cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4718cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4719cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4720cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } else if (TAL != TAL_DeclChunk) { 4721cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // Otherwise, only consider type processing for a C++11 attribute if 4722cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // it's actually been applied to a type. 4723cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith continue; 4724cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith } 4725f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith } 4726f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith 4727b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 4728b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 4729711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 4730cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith default: 4731cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith // A C++11 attribute on a declarator chunk must appertain to a type. 4732d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) { 4733cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), diag::err_attribute_not_type_attr) 4734d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith << attr.getName(); 4735d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4736d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith } 4737cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4738cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4739cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::UnknownAttribute: 4740cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (attr.isCXX11Attribute() && TAL == TAL_DeclChunk) 4741cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith state.getSema().Diag(attr.getLoc(), 4742cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith diag::warn_unknown_attribute_ignored) 4743cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith << attr.getName(); 4744cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4745cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith 4746cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith case AttributeList::IgnoredAttribute: 4747cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 474804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 47498e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MayAlias: 4750682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 4751682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 4752682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 4753682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 47548e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AddressSpace: 4755711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 4756e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4757c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 4758711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 4759711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 4760711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 4761e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4762d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 47638e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VectorSize: 4764711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 4765e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4766f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 47678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExtVectorType: 4768a4fa9008988985f9cf01712a99ddd923aea278a0Richard Smith HandleExtVectorTypeAttr(type, attr, state.getSema()); 4769e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 47704ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 47718e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonVectorType: 4772711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 47739f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonVector); 4774e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 47754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 47768e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonPolyVectorType: 4777711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 47789f939f75c64770c746d78579f75a49f9c657e426Aaron Ballman VectorType::NeonPolyVector); 4779e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 47804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 47818e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLImageAccess: 4782207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 4783e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4784207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4785207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 4786d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith case AttributeList::AT_Win64: 4787d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith attr.setUsedAsTypeAttr(); 4788d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith break; 4789aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman MS_TYPE_ATTRS_CASELIST: 4790aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman if (!handleMSPointerTypeQualifierAttr(state, attr, type)) 4791aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman attr.setUsedAsTypeAttr(); 4792aa9df09729fb8aee3e645549e95fcb413306a7aaAaron Ballman break; 4793d03de6aaa312d57dcd6e2bc76bed1e89f5c5019dRichard Smith 47948e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 47954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 4796cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith break; 4797f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 4798f85e193739c953358c865005855253af4f68a497John McCall 4799711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 4800e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4801e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4802711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 4803711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 4804f7a052732c2b6c82f74708038f75fa92c9b4dba0Richard Smith if (TAL == TAL_DeclSpec) 4805711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 4806711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4807711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 4808711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 4809711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 48106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 4811c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 4812711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 4813232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 4814232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 4815e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 4816e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4817e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 4818e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 4819e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 4820e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 4821e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 4822e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4823e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 4824d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// \param Diagnoser The object that will emit a diagnostic if the type is 4825d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// incomplete. 4826e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4827e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 4828e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 4829f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, TypeDiagnoser &Diagnoser){ 4830e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 4831e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4832e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 4833e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 4834e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 4835e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4836e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 4837e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 4838e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 4839e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 4840e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4841e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 4842e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 4843e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 484491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 484536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 484636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 484736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 484836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 484936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 485036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 485136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 485291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 485391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // This is a modification of an existing AST node. Notify 485436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 485536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 485636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 485736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 485891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 485936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 486091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 486136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 486236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 486336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 486436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 486536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 486636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 486736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 486836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 4869f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 487091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4871e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 4872e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 4873e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 4874e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4875e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4876e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4877e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4878e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4879e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 4880e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 4881e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4882e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 4883e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 4884e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 4885e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4886d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(E->getExprLoc(), T, Diagnoser); 4887d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4888d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4889d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregornamespace { 4890f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor struct TypeDiagnoserDiag : Sema::TypeDiagnoser { 4891d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor unsigned DiagID; 489291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4893f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag(unsigned DiagID) 4894f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor : Sema::TypeDiagnoser(DiagID == 0), DiagID(DiagID) {} 489591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4896d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor virtual void diagnose(Sema &S, SourceLocation Loc, QualType T) { 4897d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Suppressed) return; 4898d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor S.Diag(Loc, DiagID) << T; 4899d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor } 4900d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor }; 4901d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4902d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4903d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, unsigned DiagID) { 4904f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 4905d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteExprType(E, Diagnoser); 4906e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 4907e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 49081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 49094ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 49104ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 49114ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 491286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 491386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 491486447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 491586447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 491686447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 49174ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 49184ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 49194ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 49204ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 49214ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 49224ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 49234ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 49244ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 492591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4926f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 4927658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (RequireCompleteTypeImpl(Loc, T, Diagnoser)) 4928658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return true; 4929658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (const TagType *Tag = T->getAs<TagType>()) { 4930658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie if (!Tag->getDecl()->isCompleteDefinitionRequired()) { 4931658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Tag->getDecl()->setCompleteDefinitionRequired(); 4932658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie Consumer.HandleTagDeclRequiredDefinition(Tag->getDecl()); 4933658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 4934658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie } 4935658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie return false; 4936658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie} 4937658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie 4938658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie/// \brief The implementation of RequireCompleteType 4939658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikiebool Sema::RequireCompleteTypeImpl(SourceLocation Loc, QualType T, 4940658cd2c287b1a0b419f51cd18e5a48d4560d1c56David Blaikie TypeDiagnoser &Diagnoser) { 4941573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 4942573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 4943690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 4944690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 4945690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 49461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 4947690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 4948690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 49494ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 4950d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 4951d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 4952d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 4953b775100fea6d8955149897dae1adca50ca471d17Richard Smith if (!Diagnoser.Suppressed && Def && !LookupResult::isVisible(*this, Def)) { 4954d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 495591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // emitted the error once for this type. There's no usefulness in 4956d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 4957d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 4958d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 4959ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Module *Owner = Def->getOwningModule(); 4960ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Loc, diag::err_module_private_definition) 4961ca2ab45341c448284cf93770018c717810575f86Douglas Gregor << T << Owner->getFullModuleName(); 4962ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 4963ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 4964ca2ab45341c448284cf93770018c717810575f86Douglas Gregor if (!isSFINAEContext()) { 4965ca2ab45341c448284cf93770018c717810575f86Douglas Gregor // Recover by implicitly importing this module. 4966ca2ab45341c448284cf93770018c717810575f86Douglas Gregor createImplicitModuleImport(Loc, Owner); 4967d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4968d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 496991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 49704ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 4971d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 49724ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 4973bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 4974bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 497591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4976bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 4977bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4978bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 4979bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4980bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4981bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4982bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 4983bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 4984bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 4985bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4986bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4987bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4988bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 4989bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4990bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 4991bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 499291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4993bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4994bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 4995bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 4996bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 4997bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4998bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4999bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 500091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5001d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 5002923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 5003923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 5004923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 5005e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor while (const ConstantArrayType *Array 5006e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor = Context.getAsConstantArrayType(MaybeTemplate)) 5007923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 5008923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 50092943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 5010d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 5011972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 5012972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 5013d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 5014d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 50151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 5016d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 5017564f4c5664f552becbd05407611a92754c40e641Richard Smith CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass(); 5018564f4c5664f552becbd05407611a92754c40e641Richard Smith if (!Rec->isBeingDefined() && Pattern) { 5019564f4c5664f552becbd05407611a92754c40e641Richard Smith MemberSpecializationInfo *MSI = Rec->getMemberSpecializationInfo(); 5020564f4c5664f552becbd05407611a92754c40e641Richard Smith assert(MSI && "Missing member specialization information?"); 5021357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 5022564f4c5664f552becbd05407611a92754c40e641Richard Smith if (MSI->getTemplateSpecializationKind() != TSK_ExplicitSpecialization) 5023f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 5024f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 5025f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 5026d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 5027d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5028d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 5029d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 50302943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 5031d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Diagnoser.Suppressed) 50325842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 5033d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 50344ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 5035cac18add73d095eaab600aefe27ea7174aec4922Nico Weber if (Ident___float128 && 5036cac18add73d095eaab600aefe27ea7174aec4922Nico Weber T == Context.getTypeDeclType(Context.getFloat128StubType())) { 5037cac18add73d095eaab600aefe27ea7174aec4922Nico Weber Diag(Loc, diag::err_typecheck_decl_incomplete_type___float128); 5038cac18add73d095eaab600aefe27ea7174aec4922Nico Weber return true; 5039cac18add73d095eaab600aefe27ea7174aec4922Nico Weber } 5040cac18add73d095eaab600aefe27ea7174aec4922Nico Weber 5041d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 504291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 50434ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 504401620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 50454ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 50461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 50474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 50484ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 5049b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 505091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5051b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 5052b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 5053b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 50544ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 50554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 50564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 5057e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 5058fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 505991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier unsigned DiagID) { 5060f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5061d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(Loc, T, Diagnoser); 5062fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 5063fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 50646666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \brief Get diagnostic %select index for tag kind for 50656666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// literal type diagnostic message. 50666666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// WARNING: Indexes apply to particular diagnostics only! 50676666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// 50686666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \returns diagnostic %select index. 5069f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matosstatic unsigned getLiteralDiagFromTagKind(TagTypeKind Tag) { 50706666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos switch (Tag) { 5071f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Struct: return 0; 5072f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Interface: return 1; 5073f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos case TTK_Class: return 2; 5074f143ae9b68cdd40dfb120094baaa702b810eb52cJoao Matos default: llvm_unreachable("Invalid tag kind for literal type diagnostic!"); 50756666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos } 50766666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos} 50776666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos 50789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 50799f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 50809f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 50819f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 50829f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 50839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 50849f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 50859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 50869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 50879f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 50889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 50899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 50909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 50919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 5092f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor/// @param Diagnoser Emits a diagnostic if T is not a literal type. 50939f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 50949f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 50959f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 50969f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 5097f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 50989f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 50999f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5100ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman QualType ElemType = Context.getBaseElementType(T); 5101ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman RequireCompleteType(Loc, ElemType, 0); 5102ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 5103a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (T->isLiteralType(Context)) 51049f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 51059f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5106f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor if (Diagnoser.Suppressed) 51079f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51089f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5109f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 51109f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 51119f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 51129f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51139f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5114ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman const RecordType *RT = ElemType->getAs<RecordType>(); 51159f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 51169f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 51189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 51199f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 5120c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // A partially-defined class type can't be a literal type, because a literal 5121c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // class type must have a trivial destructor (which can't be checked until 5122c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // the class definition is complete). 5123c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith if (!RD->isCompleteDefinition()) { 5124d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor RequireCompleteType(Loc, ElemType, diag::note_non_literal_incomplete, T); 5125ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman return true; 5126c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith } 5127ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 51289f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 512986c3ae46250cdcc57778c27826060779a92f3815Richard Smith // cannot have any constexpr constructors or a trivial default constructor, 513086c3ae46250cdcc57778c27826060779a92f3815Richard Smith // so is non-literal. This is better to diagnose than the resulting absence 513186c3ae46250cdcc57778c27826060779a92f3815Richard Smith // of constexpr constructors. 51329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 51339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 51346666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos << getLiteralDiagFromTagKind(RD->getTagKind()) << RD->getNumVBases(); 51359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 51369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 513796a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 51389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 513986c3ae46250cdcc57778c27826060779a92f3815Richard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor() && 514086c3ae46250cdcc57778c27826060779a92f3815Richard Smith !RD->hasTrivialDefaultConstructor()) { 51419f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 51429f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 51439f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 51449f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 5145a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context)) { 514696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 51479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 51489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 51499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 51519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 51529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 51539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 5154a10b97898ee6339c3110e6ca33f178ff52f05238Richard Smith if (!I->getType()->isLiteralType(Context) || 5155262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie I->getType().isVolatileQualified()) { 5156262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Diag(I->getLocation(), diag::note_non_literal_field) 5157581deb3da481053c4993c7600f97acf7768caac5David Blaikie << RD << *I << I->getType() 5158262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << I->getType().isVolatileQualified(); 51599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 51619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 51629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 51639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 51649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 51659f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 51669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 51679f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 51689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 51709f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 51719f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 51729f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 5173ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith if (!Dtor->isUserProvided()) 5174ac71351acdefc9de0c770c1d717e621ac9e684bfRichard Smith SpecialMemberIsTrivial(Dtor, CXXDestructor, /*Diagnose*/true); 51759f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 51769f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 51779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 51789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 51799f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 518091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, unsigned DiagID) { 5181f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 5182f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor return RequireLiteralType(Loc, T, Diagnoser); 5183f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor} 5184f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor 5185465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 5186465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 5187465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 5188465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 5189465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 5190e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 5191465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 5192e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 5193465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 5194465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 5195465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 5196465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 5197465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 5198465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 5199465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 5200e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 5201af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 52022a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 5203fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 52042a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 52052a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 52062a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 52072b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 52082b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 5209aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 5210aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 52112b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 5212af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 5213af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5214af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 5215f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// getDecltypeForExpr - Given an expr, will return the decltype for 5216f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// that expression, according to the rules in C++11 5217f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. 5218f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregorstatic QualType getDecltypeForExpr(Sema &S, Expr *E) { 5219f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (E->isTypeDependent()) 5220f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return S.Context.DependentTy; 5221f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 52226d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 52236d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // The type denoted by decltype(e) is defined as follows: 52246d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // 52256d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - if e is an unparenthesized id-expression or an unparenthesized class 522691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // member access (5.2.5), decltype(e) is the type of the entity named 522791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // by e. If there is no such entity, or if e names a set of overloaded 52286d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // functions, the program is ill-formed; 522984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // 523084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor // We apply the same rules for Objective-C ivar and property references. 5231f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { 5232f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 5233f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return VD->getType(); 523484dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { 5235f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 5236f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return FD->getType(); 523784dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCIvarRefExpr *IR = dyn_cast<ObjCIvarRefExpr>(E)) { 523884dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return IR->getDecl()->getType(); 523984dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor } else if (const ObjCPropertyRefExpr *PR = dyn_cast<ObjCPropertyRefExpr>(E)) { 524084dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor if (PR->isExplicitProperty()) 524184dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor return PR->getExplicitProperty()->getType(); 5242f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 524384dd82e2088b1ea629f54f62a816f1155c78bb94Douglas Gregor 5244f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // C++11 [expr.lambda.prim]p18: 5245f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // Every occurrence of decltype((x)) where x is a possibly 5246f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // parenthesized id-expression that names an entity of automatic 5247f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // storage duration is treated as if x were transformed into an 5248f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // access to a corresponding data member of the closure type that 5249f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // would have been declared if x were an odr-use of the denoted 5250f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // entity. 5251f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor using namespace sema; 5252f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (S.getCurLambda()) { 5253f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (isa<ParenExpr>(E)) { 5254f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 5255f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 525668932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation()); 525768932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor if (!T.isNull()) 525868932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor return S.Context.getLValueReferenceType(T); 5259f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5260f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5261f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5262f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 5263f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 5264f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 52656d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 52666d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // [...] 52676d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor QualType T = E->getType(); 52686d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor switch (E->getValueKind()) { 526991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the 52706d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 52716d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_XValue: T = S.Context.getRValueReferenceType(T); break; 527291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the 52736d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 52746d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_LValue: T = S.Context.getLValueReferenceType(T); break; 52756d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, decltype(e) is the type of e. 52766d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_RValue: break; 52776d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor } 527891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5279f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return T; 5280f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor} 5281f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 52822a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 5283fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 52842a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 52852a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 528691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 5287f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return Context.getDecltypeType(E, getDecltypeForExpr(*this, E)); 5288af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 5289ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 5290ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 5291ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 5292ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 5293ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 5294ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 5295ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 5296ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 5297ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 5298ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 5299ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 5300ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 5301ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 5302ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 5303ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 5304ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 5305ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5306ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 5307ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 5308ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 5309ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5310ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 5311ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 5312ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 5313b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5314b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 5315b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 53168327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // FIXME: It isn't entirely clear whether incomplete atomic types 53178327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // are allowed or not; for simplicity, ban them for the moment. 5318d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, T, diag::err_atomic_specifier_bad_type, 0)) 53198327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith return QualType(); 53208327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith 5321b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 53228327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (T->isArrayType()) 5323b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 5324b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 5325b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 5326b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 5327b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 5328b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 5329b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 5330b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 5331b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 5332b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 5333b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 5334b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 5335b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5336b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 5337b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 5338b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 5339b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5340b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5341b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 5342b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 5343b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 5344b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 5345b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 5346b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 5347